Tue, 15 Mar 2011 06:35:10 -0700
7024234: 2/3 jvmti tests fail assert(!_oops_are_stale) failed: oops are stale on Win-AMD64
Summary: Move initialization of the '_instance' field to avoid race with ServiceThread start.
Reviewed-by: dholmes, kamg, never, dsamersoff, ysr, coleenp, acorn
duke@435 | 1 | /* |
ctornqvi@2520 | 2 | * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_RUNTIME_GLOBALS_HPP |
stefank@2314 | 26 | #define SHARE_VM_RUNTIME_GLOBALS_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "utilities/debug.hpp" |
stefank@2314 | 29 | #ifdef TARGET_ARCH_x86 |
stefank@2314 | 30 | # include "globals_x86.hpp" |
stefank@2314 | 31 | #endif |
stefank@2314 | 32 | #ifdef TARGET_ARCH_sparc |
stefank@2314 | 33 | # include "globals_sparc.hpp" |
stefank@2314 | 34 | #endif |
stefank@2314 | 35 | #ifdef TARGET_ARCH_zero |
stefank@2314 | 36 | # include "globals_zero.hpp" |
stefank@2314 | 37 | #endif |
bobv@2508 | 38 | #ifdef TARGET_ARCH_arm |
bobv@2508 | 39 | # include "globals_arm.hpp" |
bobv@2508 | 40 | #endif |
bobv@2508 | 41 | #ifdef TARGET_ARCH_ppc |
bobv@2508 | 42 | # include "globals_ppc.hpp" |
bobv@2508 | 43 | #endif |
stefank@2314 | 44 | #ifdef TARGET_OS_FAMILY_linux |
stefank@2314 | 45 | # include "globals_linux.hpp" |
stefank@2314 | 46 | #endif |
stefank@2314 | 47 | #ifdef TARGET_OS_FAMILY_solaris |
stefank@2314 | 48 | # include "globals_solaris.hpp" |
stefank@2314 | 49 | #endif |
stefank@2314 | 50 | #ifdef TARGET_OS_FAMILY_windows |
stefank@2314 | 51 | # include "globals_windows.hpp" |
stefank@2314 | 52 | #endif |
stefank@2314 | 53 | #ifdef TARGET_OS_ARCH_linux_x86 |
stefank@2314 | 54 | # include "globals_linux_x86.hpp" |
stefank@2314 | 55 | #endif |
stefank@2314 | 56 | #ifdef TARGET_OS_ARCH_linux_sparc |
stefank@2314 | 57 | # include "globals_linux_sparc.hpp" |
stefank@2314 | 58 | #endif |
stefank@2314 | 59 | #ifdef TARGET_OS_ARCH_linux_zero |
stefank@2314 | 60 | # include "globals_linux_zero.hpp" |
stefank@2314 | 61 | #endif |
stefank@2314 | 62 | #ifdef TARGET_OS_ARCH_solaris_x86 |
stefank@2314 | 63 | # include "globals_solaris_x86.hpp" |
stefank@2314 | 64 | #endif |
stefank@2314 | 65 | #ifdef TARGET_OS_ARCH_solaris_sparc |
stefank@2314 | 66 | # include "globals_solaris_sparc.hpp" |
stefank@2314 | 67 | #endif |
stefank@2314 | 68 | #ifdef TARGET_OS_ARCH_windows_x86 |
stefank@2314 | 69 | # include "globals_windows_x86.hpp" |
stefank@2314 | 70 | #endif |
bobv@2508 | 71 | #ifdef TARGET_OS_ARCH_linux_arm |
bobv@2508 | 72 | # include "globals_linux_arm.hpp" |
bobv@2508 | 73 | #endif |
bobv@2508 | 74 | #ifdef TARGET_OS_ARCH_linux_ppc |
bobv@2508 | 75 | # include "globals_linux_ppc.hpp" |
bobv@2508 | 76 | #endif |
stefank@2314 | 77 | #ifdef COMPILER1 |
stefank@2314 | 78 | #ifdef TARGET_ARCH_x86 |
stefank@2314 | 79 | # include "c1_globals_x86.hpp" |
stefank@2314 | 80 | #endif |
stefank@2314 | 81 | #ifdef TARGET_ARCH_sparc |
stefank@2314 | 82 | # include "c1_globals_sparc.hpp" |
stefank@2314 | 83 | #endif |
bobv@2508 | 84 | #ifdef TARGET_ARCH_arm |
bobv@2508 | 85 | # include "c1_globals_arm.hpp" |
bobv@2508 | 86 | #endif |
bobv@2508 | 87 | #ifdef TARGET_ARCH_ppc |
bobv@2508 | 88 | # include "c1_globals_ppc.hpp" |
bobv@2508 | 89 | #endif |
stefank@2314 | 90 | #ifdef TARGET_OS_FAMILY_linux |
stefank@2314 | 91 | # include "c1_globals_linux.hpp" |
stefank@2314 | 92 | #endif |
stefank@2314 | 93 | #ifdef TARGET_OS_FAMILY_solaris |
stefank@2314 | 94 | # include "c1_globals_solaris.hpp" |
stefank@2314 | 95 | #endif |
stefank@2314 | 96 | #ifdef TARGET_OS_FAMILY_windows |
stefank@2314 | 97 | # include "c1_globals_windows.hpp" |
stefank@2314 | 98 | #endif |
stefank@2314 | 99 | #endif |
stefank@2314 | 100 | #ifdef COMPILER2 |
stefank@2314 | 101 | #ifdef TARGET_ARCH_x86 |
stefank@2314 | 102 | # include "c2_globals_x86.hpp" |
stefank@2314 | 103 | #endif |
stefank@2314 | 104 | #ifdef TARGET_ARCH_sparc |
stefank@2314 | 105 | # include "c2_globals_sparc.hpp" |
stefank@2314 | 106 | #endif |
bobv@2508 | 107 | #ifdef TARGET_ARCH_arm |
bobv@2508 | 108 | # include "c2_globals_arm.hpp" |
bobv@2508 | 109 | #endif |
stefank@2314 | 110 | #ifdef TARGET_OS_FAMILY_linux |
stefank@2314 | 111 | # include "c2_globals_linux.hpp" |
stefank@2314 | 112 | #endif |
stefank@2314 | 113 | #ifdef TARGET_OS_FAMILY_solaris |
stefank@2314 | 114 | # include "c2_globals_solaris.hpp" |
stefank@2314 | 115 | #endif |
stefank@2314 | 116 | #ifdef TARGET_OS_FAMILY_windows |
stefank@2314 | 117 | # include "c2_globals_windows.hpp" |
stefank@2314 | 118 | #endif |
stefank@2314 | 119 | #endif |
stefank@2314 | 120 | #ifdef SHARK |
stefank@2314 | 121 | #ifdef TARGET_ARCH_zero |
stefank@2314 | 122 | # include "shark_globals_zero.hpp" |
stefank@2314 | 123 | #endif |
stefank@2314 | 124 | #endif |
stefank@2314 | 125 | |
twisti@2047 | 126 | #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) |
duke@435 | 127 | define_pd_global(bool, BackgroundCompilation, false); |
duke@435 | 128 | define_pd_global(bool, UseTLAB, false); |
duke@435 | 129 | define_pd_global(bool, CICompileOSR, false); |
duke@435 | 130 | define_pd_global(bool, UseTypeProfile, false); |
duke@435 | 131 | define_pd_global(bool, UseOnStackReplacement, false); |
duke@435 | 132 | define_pd_global(bool, InlineIntrinsics, false); |
duke@435 | 133 | define_pd_global(bool, PreferInterpreterNativeStubs, true); |
duke@435 | 134 | define_pd_global(bool, ProfileInterpreter, false); |
duke@435 | 135 | define_pd_global(bool, ProfileTraps, false); |
duke@435 | 136 | define_pd_global(bool, TieredCompilation, false); |
duke@435 | 137 | |
duke@435 | 138 | define_pd_global(intx, CompileThreshold, 0); |
duke@435 | 139 | define_pd_global(intx, BackEdgeThreshold, 0); |
duke@435 | 140 | |
duke@435 | 141 | define_pd_global(intx, OnStackReplacePercentage, 0); |
duke@435 | 142 | define_pd_global(bool, ResizeTLAB, false); |
duke@435 | 143 | define_pd_global(intx, FreqInlineSize, 0); |
phh@1499 | 144 | define_pd_global(intx, InlineSmallCode, 0); |
duke@435 | 145 | define_pd_global(intx, NewSizeThreadIncrease, 4*K); |
duke@435 | 146 | define_pd_global(intx, InlineClassNatives, true); |
duke@435 | 147 | define_pd_global(intx, InlineUnsafeOps, true); |
duke@435 | 148 | define_pd_global(intx, InitialCodeCacheSize, 160*K); |
duke@435 | 149 | define_pd_global(intx, ReservedCodeCacheSize, 32*M); |
duke@435 | 150 | define_pd_global(intx, CodeCacheExpansionSize, 32*K); |
duke@435 | 151 | define_pd_global(intx, CodeCacheMinBlockLength, 1); |
duke@435 | 152 | define_pd_global(uintx,PermSize, ScaleForWordSize(4*M)); |
duke@435 | 153 | define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M)); |
duke@435 | 154 | define_pd_global(bool, NeverActAsServerClassMachine, true); |
phh@1499 | 155 | define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
duke@435 | 156 | #define CI_COMPILER_COUNT 0 |
duke@435 | 157 | #else |
duke@435 | 158 | |
duke@435 | 159 | #ifdef COMPILER2 |
duke@435 | 160 | #define CI_COMPILER_COUNT 2 |
duke@435 | 161 | #else |
duke@435 | 162 | #define CI_COMPILER_COUNT 1 |
duke@435 | 163 | #endif // COMPILER2 |
duke@435 | 164 | |
duke@435 | 165 | #endif // no compilers |
duke@435 | 166 | |
duke@435 | 167 | |
duke@435 | 168 | // string type aliases used only in this file |
duke@435 | 169 | typedef const char* ccstr; |
duke@435 | 170 | typedef const char* ccstrlist; // represents string arguments which accumulate |
duke@435 | 171 | |
duke@435 | 172 | enum FlagValueOrigin { |
duke@435 | 173 | DEFAULT = 0, |
duke@435 | 174 | COMMAND_LINE = 1, |
duke@435 | 175 | ENVIRON_VAR = 2, |
duke@435 | 176 | CONFIG_FILE = 3, |
duke@435 | 177 | MANAGEMENT = 4, |
duke@435 | 178 | ERGONOMIC = 5, |
duke@435 | 179 | ATTACH_ON_DEMAND = 6, |
duke@435 | 180 | INTERNAL = 99 |
duke@435 | 181 | }; |
duke@435 | 182 | |
duke@435 | 183 | struct Flag { |
duke@435 | 184 | const char *type; |
duke@435 | 185 | const char *name; |
duke@435 | 186 | void* addr; |
ikrylov@2123 | 187 | |
ikrylov@2123 | 188 | NOT_PRODUCT(const char *doc;) |
ikrylov@2123 | 189 | |
duke@435 | 190 | const char *kind; |
duke@435 | 191 | FlagValueOrigin origin; |
duke@435 | 192 | |
duke@435 | 193 | // points to all Flags static array |
duke@435 | 194 | static Flag *flags; |
duke@435 | 195 | |
duke@435 | 196 | // number of flags |
duke@435 | 197 | static size_t numFlags; |
duke@435 | 198 | |
duke@435 | 199 | static Flag* find_flag(char* name, size_t length); |
duke@435 | 200 | |
duke@435 | 201 | bool is_bool() const { return strcmp(type, "bool") == 0; } |
duke@435 | 202 | bool get_bool() const { return *((bool*) addr); } |
duke@435 | 203 | void set_bool(bool value) { *((bool*) addr) = value; } |
duke@435 | 204 | |
duke@435 | 205 | bool is_intx() const { return strcmp(type, "intx") == 0; } |
duke@435 | 206 | intx get_intx() const { return *((intx*) addr); } |
duke@435 | 207 | void set_intx(intx value) { *((intx*) addr) = value; } |
duke@435 | 208 | |
duke@435 | 209 | bool is_uintx() const { return strcmp(type, "uintx") == 0; } |
duke@435 | 210 | uintx get_uintx() const { return *((uintx*) addr); } |
duke@435 | 211 | void set_uintx(uintx value) { *((uintx*) addr) = value; } |
duke@435 | 212 | |
phh@1499 | 213 | bool is_uint64_t() const { return strcmp(type, "uint64_t") == 0; } |
phh@1499 | 214 | uint64_t get_uint64_t() const { return *((uint64_t*) addr); } |
phh@1499 | 215 | void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; } |
phh@1499 | 216 | |
duke@435 | 217 | bool is_double() const { return strcmp(type, "double") == 0; } |
duke@435 | 218 | double get_double() const { return *((double*) addr); } |
duke@435 | 219 | void set_double(double value) { *((double*) addr) = value; } |
duke@435 | 220 | |
duke@435 | 221 | bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; } |
duke@435 | 222 | bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; } |
duke@435 | 223 | ccstr get_ccstr() const { return *((ccstr*) addr); } |
duke@435 | 224 | void set_ccstr(ccstr value) { *((ccstr*) addr) = value; } |
duke@435 | 225 | |
duke@435 | 226 | bool is_unlocker() const; |
duke@435 | 227 | bool is_unlocked() const; |
duke@435 | 228 | bool is_writeable() const; |
duke@435 | 229 | bool is_external() const; |
duke@435 | 230 | |
ikrylov@2123 | 231 | void print_on(outputStream* st, bool withComments = false ); |
duke@435 | 232 | void print_as_flag(outputStream* st); |
duke@435 | 233 | }; |
duke@435 | 234 | |
duke@435 | 235 | // debug flags control various aspects of the VM and are global accessible |
duke@435 | 236 | |
duke@435 | 237 | // use FlagSetting to temporarily change some debug flag |
duke@435 | 238 | // e.g. FlagSetting fs(DebugThisAndThat, true); |
duke@435 | 239 | // restored to previous value upon leaving scope |
duke@435 | 240 | class FlagSetting { |
duke@435 | 241 | bool val; |
duke@435 | 242 | bool* flag; |
duke@435 | 243 | public: |
duke@435 | 244 | FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } |
duke@435 | 245 | ~FlagSetting() { *flag = val; } |
duke@435 | 246 | }; |
duke@435 | 247 | |
duke@435 | 248 | |
duke@435 | 249 | class CounterSetting { |
duke@435 | 250 | intx* counter; |
duke@435 | 251 | public: |
duke@435 | 252 | CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } |
duke@435 | 253 | ~CounterSetting() { (*counter)--; } |
duke@435 | 254 | }; |
duke@435 | 255 | |
duke@435 | 256 | |
duke@435 | 257 | class IntFlagSetting { |
duke@435 | 258 | intx val; |
duke@435 | 259 | intx* flag; |
duke@435 | 260 | public: |
duke@435 | 261 | IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; } |
duke@435 | 262 | ~IntFlagSetting() { *flag = val; } |
duke@435 | 263 | }; |
duke@435 | 264 | |
duke@435 | 265 | |
duke@435 | 266 | class DoubleFlagSetting { |
duke@435 | 267 | double val; |
duke@435 | 268 | double* flag; |
duke@435 | 269 | public: |
duke@435 | 270 | DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } |
duke@435 | 271 | ~DoubleFlagSetting() { *flag = val; } |
duke@435 | 272 | }; |
duke@435 | 273 | |
duke@435 | 274 | |
duke@435 | 275 | class CommandLineFlags { |
duke@435 | 276 | public: |
duke@435 | 277 | static bool boolAt(char* name, size_t len, bool* value); |
duke@435 | 278 | static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } |
duke@435 | 279 | static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin); |
duke@435 | 280 | static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); } |
duke@435 | 281 | |
duke@435 | 282 | static bool intxAt(char* name, size_t len, intx* value); |
duke@435 | 283 | static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } |
duke@435 | 284 | static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin); |
duke@435 | 285 | static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); } |
duke@435 | 286 | |
duke@435 | 287 | static bool uintxAt(char* name, size_t len, uintx* value); |
duke@435 | 288 | static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } |
duke@435 | 289 | static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin); |
duke@435 | 290 | static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); } |
duke@435 | 291 | |
phh@1499 | 292 | static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
phh@1499 | 293 | static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } |
phh@1499 | 294 | static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin); |
phh@1499 | 295 | static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); } |
phh@1499 | 296 | |
duke@435 | 297 | static bool doubleAt(char* name, size_t len, double* value); |
duke@435 | 298 | static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } |
duke@435 | 299 | static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin); |
duke@435 | 300 | static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); } |
duke@435 | 301 | |
duke@435 | 302 | static bool ccstrAt(char* name, size_t len, ccstr* value); |
duke@435 | 303 | static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } |
duke@435 | 304 | static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin); |
duke@435 | 305 | static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); } |
duke@435 | 306 | |
duke@435 | 307 | // Returns false if name is not a command line flag. |
duke@435 | 308 | static bool wasSetOnCmdline(const char* name, bool* value); |
duke@435 | 309 | static void printSetFlags(); |
duke@435 | 310 | |
ikrylov@2123 | 311 | static void printFlags(bool withComments = false ); |
duke@435 | 312 | |
duke@435 | 313 | static void verify() PRODUCT_RETURN; |
duke@435 | 314 | }; |
duke@435 | 315 | |
duke@435 | 316 | // use this for flags that are true by default in the debug version but |
duke@435 | 317 | // false in the optimized version, and vice versa |
duke@435 | 318 | #ifdef ASSERT |
duke@435 | 319 | #define trueInDebug true |
duke@435 | 320 | #define falseInDebug false |
duke@435 | 321 | #else |
duke@435 | 322 | #define trueInDebug false |
duke@435 | 323 | #define falseInDebug true |
duke@435 | 324 | #endif |
duke@435 | 325 | |
duke@435 | 326 | // use this for flags that are true per default in the product build |
duke@435 | 327 | // but false in development builds, and vice versa |
duke@435 | 328 | #ifdef PRODUCT |
duke@435 | 329 | #define trueInProduct true |
duke@435 | 330 | #define falseInProduct false |
duke@435 | 331 | #else |
duke@435 | 332 | #define trueInProduct false |
duke@435 | 333 | #define falseInProduct true |
duke@435 | 334 | #endif |
duke@435 | 335 | |
duke@435 | 336 | // use this for flags that are true per default in the tiered build |
duke@435 | 337 | // but false in non-tiered builds, and vice versa |
duke@435 | 338 | #ifdef TIERED |
duke@435 | 339 | #define trueInTiered true |
duke@435 | 340 | #define falseInTiered false |
duke@435 | 341 | #else |
duke@435 | 342 | #define trueInTiered false |
duke@435 | 343 | #define falseInTiered true |
duke@435 | 344 | #endif |
duke@435 | 345 | |
duke@435 | 346 | // develop flags are settable / visible only during development and are constant in the PRODUCT version |
duke@435 | 347 | // product flags are always settable / visible |
duke@435 | 348 | // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version |
duke@435 | 349 | |
duke@435 | 350 | // A flag must be declared with one of the following types: |
duke@435 | 351 | // bool, intx, uintx, ccstr. |
duke@435 | 352 | // The type "ccstr" is an alias for "const char*" and is used |
duke@435 | 353 | // only in this file, because the macrology requires single-token type names. |
duke@435 | 354 | |
duke@435 | 355 | // Note: Diagnostic options not meant for VM tuning or for product modes. |
duke@435 | 356 | // They are to be used for VM quality assurance or field diagnosis |
duke@435 | 357 | // of VM bugs. They are hidden so that users will not be encouraged to |
duke@435 | 358 | // try them as if they were VM ordinary execution options. However, they |
duke@435 | 359 | // are available in the product version of the VM. Under instruction |
duke@435 | 360 | // from support engineers, VM customers can turn them on to collect |
duke@435 | 361 | // diagnostic information about VM problems. To use a VM diagnostic |
duke@435 | 362 | // option, you must first specify +UnlockDiagnosticVMOptions. |
duke@435 | 363 | // (This master switch also affects the behavior of -Xprintflags.) |
ysr@785 | 364 | // |
ysr@785 | 365 | // experimental flags are in support of features that are not |
ysr@785 | 366 | // part of the officially supported product, but are available |
ysr@785 | 367 | // for experimenting with. They could, for example, be performance |
ysr@785 | 368 | // features that may not have undergone full or rigorous QA, but which may |
ysr@785 | 369 | // help performance in some cases and released for experimentation |
ysr@785 | 370 | // by the community of users and developers. This flag also allows one to |
ysr@785 | 371 | // be able to build a fully supported product that nonetheless also |
ysr@785 | 372 | // ships with some unsupported, lightly tested, experimental features. |
ysr@785 | 373 | // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
ysr@785 | 374 | // UnlockExperimentalVMOptions flag, which allows the control and |
ysr@785 | 375 | // modification of the experimental flags. |
ysr@785 | 376 | // |
ysr@2192 | 377 | // Nota bene: neither diagnostic nor experimental options should be used casually, |
ysr@2192 | 378 | // and they are not supported on production loads, except under explicit |
ysr@2192 | 379 | // direction from support engineers. |
ysr@2192 | 380 | // |
duke@435 | 381 | // manageable flags are writeable external product flags. |
duke@435 | 382 | // They are dynamically writeable through the JDK management interface |
duke@435 | 383 | // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. |
duke@435 | 384 | // These flags are external exported interface (see CCC). The list of |
duke@435 | 385 | // manageable flags can be queried programmatically through the management |
duke@435 | 386 | // interface. |
duke@435 | 387 | // |
duke@435 | 388 | // A flag can be made as "manageable" only if |
duke@435 | 389 | // - the flag is defined in a CCC as an external exported interface. |
duke@435 | 390 | // - the VM implementation supports dynamic setting of the flag. |
duke@435 | 391 | // This implies that the VM must *always* query the flag variable |
duke@435 | 392 | // and not reuse state related to the flag state at any given time. |
duke@435 | 393 | // - you want the flag to be queried programmatically by the customers. |
duke@435 | 394 | // |
duke@435 | 395 | // product_rw flags are writeable internal product flags. |
duke@435 | 396 | // They are like "manageable" flags but for internal/private use. |
duke@435 | 397 | // The list of product_rw flags are internal/private flags which |
duke@435 | 398 | // may be changed/removed in a future release. It can be set |
duke@435 | 399 | // through the management interface to get/set value |
duke@435 | 400 | // when the name of flag is supplied. |
duke@435 | 401 | // |
duke@435 | 402 | // A flag can be made as "product_rw" only if |
duke@435 | 403 | // - the VM implementation supports dynamic setting of the flag. |
duke@435 | 404 | // This implies that the VM must *always* query the flag variable |
duke@435 | 405 | // and not reuse state related to the flag state at any given time. |
duke@435 | 406 | // |
duke@435 | 407 | // Note that when there is a need to support develop flags to be writeable, |
duke@435 | 408 | // it can be done in the same way as product_rw. |
duke@435 | 409 | |
ysr@785 | 410 | #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
coleenp@548 | 411 | \ |
coleenp@548 | 412 | lp64_product(bool, UseCompressedOops, false, \ |
coleenp@548 | 413 | "Use 32-bit object references in 64-bit VM. " \ |
coleenp@548 | 414 | "lp64_product means flag is always constant in 32 bit VM") \ |
duke@435 | 415 | \ |
kvn@1077 | 416 | notproduct(bool, CheckCompressedOops, true, \ |
kvn@1077 | 417 | "generate checks in encoding/decoding code in debug VM") \ |
kvn@1077 | 418 | \ |
kvn@1077 | 419 | product_pd(uintx, HeapBaseMinAddress, \ |
kvn@1077 | 420 | "OS specific low limit for heap base address") \ |
kvn@1077 | 421 | \ |
kvn@1077 | 422 | diagnostic(bool, PrintCompressedOopsMode, false, \ |
kvn@1077 | 423 | "Print compressed oops base address and encoding mode") \ |
coleenp@760 | 424 | \ |
kvn@1926 | 425 | lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
kvn@1926 | 426 | "Default object alignment in bytes, 8 is minimum") \ |
kvn@1926 | 427 | \ |
duke@435 | 428 | /* UseMembar is theoretically a temp flag used for memory barrier \ |
duke@435 | 429 | * removal testing. It was supposed to be removed before FCS but has \ |
duke@435 | 430 | * been re-added (see 6401008) */ \ |
bobv@2223 | 431 | product_pd(bool, UseMembar, \ |
duke@435 | 432 | "(Unstable) Issues membars on thread state transitions") \ |
duke@435 | 433 | \ |
bobv@2508 | 434 | /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
bobv@2508 | 435 | * that don't support it. This will be replaced by processor detection \ |
bobv@2508 | 436 | * logic. \ |
bobv@2508 | 437 | */ \ |
bobv@2508 | 438 | product(bool, UsePPCLWSYNC, true, \ |
bobv@2508 | 439 | "Use lwsync instruction if true, else use slower sync") \ |
bobv@2508 | 440 | \ |
bobv@2508 | 441 | /* Temporary: See 6948537 */ \ |
ysr@1873 | 442 | experimental(bool, UseMemSetInBOT, true, \ |
ysr@1873 | 443 | "(Unstable) uses memset in BOT updates in GC code") \ |
ysr@1873 | 444 | \ |
duke@435 | 445 | diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
ysr@785 | 446 | "Enable normal processing of flags relating to field diagnostics")\ |
ysr@785 | 447 | \ |
ysr@785 | 448 | experimental(bool, UnlockExperimentalVMOptions, false, \ |
ysr@785 | 449 | "Enable normal processing of flags relating to experimental features")\ |
duke@435 | 450 | \ |
duke@435 | 451 | product(bool, JavaMonitorsInStackTrace, true, \ |
duke@435 | 452 | "Print info. about Java monitor locks when the stacks are dumped")\ |
duke@435 | 453 | \ |
duke@435 | 454 | product_pd(bool, UseLargePages, \ |
duke@435 | 455 | "Use large page memory") \ |
duke@435 | 456 | \ |
jmasa@824 | 457 | product_pd(bool, UseLargePagesIndividualAllocation, \ |
jmasa@824 | 458 | "Allocate large pages individually for better affinity") \ |
jmasa@824 | 459 | \ |
jmasa@824 | 460 | develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
jmasa@824 | 461 | "Fail large pages individual allocation") \ |
jmasa@824 | 462 | \ |
duke@435 | 463 | develop(bool, TracePageSizes, false, \ |
duke@435 | 464 | "Trace page size selection and usage.") \ |
duke@435 | 465 | \ |
duke@435 | 466 | product(bool, UseNUMA, false, \ |
duke@435 | 467 | "Use NUMA if available") \ |
duke@435 | 468 | \ |
iveresov@897 | 469 | product(bool, ForceNUMA, false, \ |
iveresov@897 | 470 | "Force NUMA optimizations on single-node/UMA systems") \ |
iveresov@897 | 471 | \ |
duke@435 | 472 | product(intx, NUMAChunkResizeWeight, 20, \ |
duke@435 | 473 | "Percentage (0-100) used to weight the current sample when " \ |
duke@435 | 474 | "computing exponentially decaying average for " \ |
duke@435 | 475 | "AdaptiveNUMAChunkSizing") \ |
duke@435 | 476 | \ |
duke@435 | 477 | product(intx, NUMASpaceResizeRate, 1*G, \ |
duke@435 | 478 | "Do not reallocate more that this amount per collection") \ |
duke@435 | 479 | \ |
duke@435 | 480 | product(bool, UseAdaptiveNUMAChunkSizing, true, \ |
duke@435 | 481 | "Enable adaptive chunk sizing for NUMA") \ |
duke@435 | 482 | \ |
duke@435 | 483 | product(bool, NUMAStats, false, \ |
duke@435 | 484 | "Print NUMA stats in detailed heap information") \ |
duke@435 | 485 | \ |
duke@435 | 486 | product(intx, NUMAPageScanRate, 256, \ |
duke@435 | 487 | "Maximum number of pages to include in the page scan procedure") \ |
duke@435 | 488 | \ |
duke@435 | 489 | product_pd(bool, NeedsDeoptSuspend, \ |
duke@435 | 490 | "True for register window machines (sparc/ia64)") \ |
duke@435 | 491 | \ |
duke@435 | 492 | product(intx, UseSSE, 99, \ |
duke@435 | 493 | "Highest supported SSE instructions set on x86/x64") \ |
duke@435 | 494 | \ |
duke@435 | 495 | product(uintx, LargePageSizeInBytes, 0, \ |
duke@435 | 496 | "Large page size (0 to let VM choose the page size") \ |
duke@435 | 497 | \ |
duke@435 | 498 | product(uintx, LargePageHeapSizeThreshold, 128*M, \ |
duke@435 | 499 | "Use large pages if max heap is at least this big") \ |
duke@435 | 500 | \ |
duke@435 | 501 | product(bool, ForceTimeHighResolution, false, \ |
duke@435 | 502 | "Using high time resolution(For Win32 only)") \ |
duke@435 | 503 | \ |
duke@435 | 504 | develop(bool, TraceItables, false, \ |
duke@435 | 505 | "Trace initialization and use of itables") \ |
duke@435 | 506 | \ |
duke@435 | 507 | develop(bool, TracePcPatching, false, \ |
duke@435 | 508 | "Trace usage of frame::patch_pc") \ |
duke@435 | 509 | \ |
duke@435 | 510 | develop(bool, TraceJumps, false, \ |
duke@435 | 511 | "Trace assembly jumps in thread ring buffer") \ |
duke@435 | 512 | \ |
duke@435 | 513 | develop(bool, TraceRelocator, false, \ |
duke@435 | 514 | "Trace the bytecode relocator") \ |
duke@435 | 515 | \ |
duke@435 | 516 | develop(bool, TraceLongCompiles, false, \ |
duke@435 | 517 | "Print out every time compilation is longer than " \ |
duke@435 | 518 | "a given threashold") \ |
duke@435 | 519 | \ |
duke@435 | 520 | develop(bool, SafepointALot, false, \ |
duke@435 | 521 | "Generates a lot of safepoints. Works with " \ |
duke@435 | 522 | "GuaranteedSafepointInterval") \ |
duke@435 | 523 | \ |
duke@435 | 524 | product_pd(bool, BackgroundCompilation, \ |
duke@435 | 525 | "A thread requesting compilation is not blocked during " \ |
duke@435 | 526 | "compilation") \ |
duke@435 | 527 | \ |
duke@435 | 528 | product(bool, PrintVMQWaitTime, false, \ |
duke@435 | 529 | "Prints out the waiting time in VM operation queue") \ |
duke@435 | 530 | \ |
duke@435 | 531 | develop(bool, BailoutToInterpreterForThrows, false, \ |
duke@435 | 532 | "Compiled methods which throws/catches exceptions will be " \ |
duke@435 | 533 | "deopt and intp.") \ |
duke@435 | 534 | \ |
duke@435 | 535 | develop(bool, NoYieldsInMicrolock, false, \ |
duke@435 | 536 | "Disable yields in microlock") \ |
duke@435 | 537 | \ |
duke@435 | 538 | develop(bool, TraceOopMapGeneration, false, \ |
duke@435 | 539 | "Shows oopmap generation") \ |
duke@435 | 540 | \ |
duke@435 | 541 | product(bool, MethodFlushing, true, \ |
duke@435 | 542 | "Reclamation of zombie and not-entrant methods") \ |
duke@435 | 543 | \ |
duke@435 | 544 | develop(bool, VerifyStack, false, \ |
duke@435 | 545 | "Verify stack of each thread when it is entering a runtime call") \ |
duke@435 | 546 | \ |
duke@435 | 547 | develop(bool, ForceUnreachable, false, \ |
duke@435 | 548 | "(amd64) Make all non code cache addresses to be unreachable with rip-rel forcing use of 64bit literal fixups") \ |
duke@435 | 549 | \ |
duke@435 | 550 | notproduct(bool, StressDerivedPointers, false, \ |
duke@435 | 551 | "Force scavenge when a derived pointers is detected on stack " \ |
duke@435 | 552 | "after rtm call") \ |
duke@435 | 553 | \ |
duke@435 | 554 | develop(bool, TraceDerivedPointers, false, \ |
duke@435 | 555 | "Trace traversal of derived pointers on stack") \ |
duke@435 | 556 | \ |
duke@435 | 557 | notproduct(bool, TraceCodeBlobStacks, false, \ |
duke@435 | 558 | "Trace stack-walk of codeblobs") \ |
duke@435 | 559 | \ |
duke@435 | 560 | product(bool, PrintJNIResolving, false, \ |
duke@435 | 561 | "Used to implement -v:jni") \ |
duke@435 | 562 | \ |
duke@435 | 563 | notproduct(bool, PrintRewrites, false, \ |
duke@435 | 564 | "Print methods that are being rewritten") \ |
duke@435 | 565 | \ |
duke@435 | 566 | product(bool, UseInlineCaches, true, \ |
duke@435 | 567 | "Use Inline Caches for virtual calls ") \ |
duke@435 | 568 | \ |
duke@435 | 569 | develop(bool, InlineArrayCopy, true, \ |
duke@435 | 570 | "inline arraycopy native that is known to be part of " \ |
duke@435 | 571 | "base library DLL") \ |
duke@435 | 572 | \ |
duke@435 | 573 | develop(bool, InlineObjectHash, true, \ |
duke@435 | 574 | "inline Object::hashCode() native that is known to be part " \ |
duke@435 | 575 | "of base library DLL") \ |
duke@435 | 576 | \ |
duke@435 | 577 | develop(bool, InlineObjectCopy, true, \ |
duke@435 | 578 | "inline Object.clone and Arrays.copyOf[Range] intrinsics") \ |
duke@435 | 579 | \ |
duke@435 | 580 | develop(bool, InlineNatives, true, \ |
duke@435 | 581 | "inline natives that are known to be part of base library DLL") \ |
duke@435 | 582 | \ |
duke@435 | 583 | develop(bool, InlineMathNatives, true, \ |
duke@435 | 584 | "inline SinD, CosD, etc.") \ |
duke@435 | 585 | \ |
duke@435 | 586 | develop(bool, InlineClassNatives, true, \ |
duke@435 | 587 | "inline Class.isInstance, etc") \ |
duke@435 | 588 | \ |
duke@435 | 589 | develop(bool, InlineAtomicLong, true, \ |
duke@435 | 590 | "inline sun.misc.AtomicLong") \ |
duke@435 | 591 | \ |
duke@435 | 592 | develop(bool, InlineThreadNatives, true, \ |
duke@435 | 593 | "inline Thread.currentThread, etc") \ |
duke@435 | 594 | \ |
duke@435 | 595 | develop(bool, InlineReflectionGetCallerClass, true, \ |
duke@435 | 596 | "inline sun.reflect.Reflection.getCallerClass(), known to be part "\ |
duke@435 | 597 | "of base library DLL") \ |
duke@435 | 598 | \ |
duke@435 | 599 | develop(bool, InlineUnsafeOps, true, \ |
duke@435 | 600 | "inline memory ops (native methods) from sun.misc.Unsafe") \ |
duke@435 | 601 | \ |
duke@435 | 602 | develop(bool, ConvertCmpD2CmpF, true, \ |
duke@435 | 603 | "Convert cmpD to cmpF when one input is constant in float range") \ |
duke@435 | 604 | \ |
duke@435 | 605 | develop(bool, ConvertFloat2IntClipping, true, \ |
duke@435 | 606 | "Convert float2int clipping idiom to integer clipping") \ |
duke@435 | 607 | \ |
duke@435 | 608 | develop(bool, SpecialStringCompareTo, true, \ |
duke@435 | 609 | "special version of string compareTo") \ |
duke@435 | 610 | \ |
duke@435 | 611 | develop(bool, SpecialStringIndexOf, true, \ |
duke@435 | 612 | "special version of string indexOf") \ |
duke@435 | 613 | \ |
cfang@1116 | 614 | develop(bool, SpecialStringEquals, true, \ |
cfang@1116 | 615 | "special version of string equals") \ |
cfang@1116 | 616 | \ |
cfang@1116 | 617 | develop(bool, SpecialArraysEquals, true, \ |
rasbold@604 | 618 | "special version of Arrays.equals(char[],char[])") \ |
rasbold@604 | 619 | \ |
cfang@1116 | 620 | product(bool, UseSSE42Intrinsics, false, \ |
cfang@1116 | 621 | "SSE4.2 versions of intrinsics") \ |
cfang@1116 | 622 | \ |
duke@435 | 623 | develop(bool, TraceCallFixup, false, \ |
duke@435 | 624 | "traces all call fixups") \ |
duke@435 | 625 | \ |
duke@435 | 626 | develop(bool, DeoptimizeALot, false, \ |
duke@435 | 627 | "deoptimize at every exit from the runtime system") \ |
duke@435 | 628 | \ |
kvn@869 | 629 | notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
duke@435 | 630 | "a comma separated list of bcis to deoptimize at") \ |
duke@435 | 631 | \ |
duke@435 | 632 | product(bool, DeoptimizeRandom, false, \ |
duke@435 | 633 | "deoptimize random frames on random exit from the runtime system")\ |
duke@435 | 634 | \ |
duke@435 | 635 | notproduct(bool, ZombieALot, false, \ |
duke@435 | 636 | "creates zombies (non-entrant) at exit from the runt. system") \ |
duke@435 | 637 | \ |
coleenp@2497 | 638 | product(bool, UnlinkSymbolsALot, false, \ |
coleenp@2497 | 639 | "unlink unreferenced symbols from the symbol table at safepoints")\ |
coleenp@2497 | 640 | \ |
duke@435 | 641 | notproduct(bool, WalkStackALot, false, \ |
duke@435 | 642 | "trace stack (no print) at every exit from the runtime system") \ |
duke@435 | 643 | \ |
duke@435 | 644 | develop(bool, Debugging, false, \ |
duke@435 | 645 | "set when executing debug methods in debug.ccp " \ |
duke@435 | 646 | "(to prevent triggering assertions)") \ |
duke@435 | 647 | \ |
duke@435 | 648 | notproduct(bool, StrictSafepointChecks, trueInDebug, \ |
duke@435 | 649 | "Enable strict checks that safepoints cannot happen for threads " \ |
duke@435 | 650 | "that used No_Safepoint_Verifier") \ |
duke@435 | 651 | \ |
duke@435 | 652 | notproduct(bool, VerifyLastFrame, false, \ |
duke@435 | 653 | "Verify oops on last frame on entry to VM") \ |
duke@435 | 654 | \ |
duke@435 | 655 | develop(bool, TraceHandleAllocation, false, \ |
duke@435 | 656 | "Prints out warnings when suspicious many handles are allocated") \ |
duke@435 | 657 | \ |
duke@435 | 658 | product(bool, UseCompilerSafepoints, true, \ |
duke@435 | 659 | "Stop at safepoints in compiled code") \ |
duke@435 | 660 | \ |
duke@435 | 661 | product(bool, UseSplitVerifier, true, \ |
duke@435 | 662 | "use split verifier with StackMapTable attributes") \ |
duke@435 | 663 | \ |
duke@435 | 664 | product(bool, FailOverToOldVerifier, true, \ |
duke@435 | 665 | "fail over to old verifier when split verifier fails") \ |
duke@435 | 666 | \ |
duke@435 | 667 | develop(bool, ShowSafepointMsgs, false, \ |
duke@435 | 668 | "Show msg. about safepoint synch.") \ |
duke@435 | 669 | \ |
duke@435 | 670 | product(bool, SafepointTimeout, false, \ |
duke@435 | 671 | "Time out and warn or fail after SafepointTimeoutDelay " \ |
duke@435 | 672 | "milliseconds if failed to reach safepoint") \ |
duke@435 | 673 | \ |
duke@435 | 674 | develop(bool, DieOnSafepointTimeout, false, \ |
duke@435 | 675 | "Die upon failure to reach safepoint (see SafepointTimeout)") \ |
duke@435 | 676 | \ |
duke@435 | 677 | /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ |
duke@435 | 678 | /* typically, at most a few retries are needed */ \ |
duke@435 | 679 | product(intx, SuspendRetryCount, 50, \ |
duke@435 | 680 | "Maximum retry count for an external suspend request") \ |
duke@435 | 681 | \ |
duke@435 | 682 | product(intx, SuspendRetryDelay, 5, \ |
duke@435 | 683 | "Milliseconds to delay per retry (* current_retry_count)") \ |
duke@435 | 684 | \ |
duke@435 | 685 | product(bool, AssertOnSuspendWaitFailure, false, \ |
duke@435 | 686 | "Assert/Guarantee on external suspend wait failure") \ |
duke@435 | 687 | \ |
duke@435 | 688 | product(bool, TraceSuspendWaitFailures, false, \ |
duke@435 | 689 | "Trace external suspend wait failures") \ |
duke@435 | 690 | \ |
duke@435 | 691 | product(bool, MaxFDLimit, true, \ |
duke@435 | 692 | "Bump the number of file descriptors to max in solaris.") \ |
duke@435 | 693 | \ |
duke@435 | 694 | notproduct(bool, LogEvents, trueInDebug, \ |
duke@435 | 695 | "Enable Event log") \ |
duke@435 | 696 | \ |
duke@435 | 697 | product(bool, BytecodeVerificationRemote, true, \ |
duke@435 | 698 | "Enables the Java bytecode verifier for remote classes") \ |
duke@435 | 699 | \ |
duke@435 | 700 | product(bool, BytecodeVerificationLocal, false, \ |
duke@435 | 701 | "Enables the Java bytecode verifier for local classes") \ |
duke@435 | 702 | \ |
duke@435 | 703 | develop(bool, ForceFloatExceptions, trueInDebug, \ |
duke@435 | 704 | "Force exceptions on FP stack under/overflow") \ |
duke@435 | 705 | \ |
duke@435 | 706 | develop(bool, SoftMatchFailure, trueInProduct, \ |
duke@435 | 707 | "If the DFA fails to match a node, print a message and bail out") \ |
duke@435 | 708 | \ |
duke@435 | 709 | develop(bool, VerifyStackAtCalls, false, \ |
duke@435 | 710 | "Verify that the stack pointer is unchanged after calls") \ |
duke@435 | 711 | \ |
duke@435 | 712 | develop(bool, TraceJavaAssertions, false, \ |
duke@435 | 713 | "Trace java language assertions") \ |
duke@435 | 714 | \ |
duke@435 | 715 | notproduct(bool, CheckAssertionStatusDirectives, false, \ |
duke@435 | 716 | "temporary - see javaClasses.cpp") \ |
duke@435 | 717 | \ |
duke@435 | 718 | notproduct(bool, PrintMallocFree, false, \ |
duke@435 | 719 | "Trace calls to C heap malloc/free allocation") \ |
duke@435 | 720 | \ |
bobv@2036 | 721 | product(bool, PrintOopAddress, false, \ |
duke@435 | 722 | "Always print the location of the oop") \ |
duke@435 | 723 | \ |
duke@435 | 724 | notproduct(bool, VerifyCodeCacheOften, false, \ |
duke@435 | 725 | "Verify compiled-code cache often") \ |
duke@435 | 726 | \ |
duke@435 | 727 | develop(bool, ZapDeadCompiledLocals, false, \ |
duke@435 | 728 | "Zap dead locals in compiler frames") \ |
duke@435 | 729 | \ |
duke@435 | 730 | notproduct(bool, ZapDeadLocalsOld, false, \ |
duke@435 | 731 | "Zap dead locals (old version, zaps all frames when " \ |
duke@435 | 732 | "entering the VM") \ |
duke@435 | 733 | \ |
duke@435 | 734 | notproduct(bool, CheckOopishValues, false, \ |
duke@435 | 735 | "Warn if value contains oop ( requires ZapDeadLocals)") \ |
duke@435 | 736 | \ |
duke@435 | 737 | develop(bool, UseMallocOnly, false, \ |
duke@435 | 738 | "use only malloc/free for allocation (no resource area/arena)") \ |
duke@435 | 739 | \ |
duke@435 | 740 | develop(bool, PrintMalloc, false, \ |
duke@435 | 741 | "print all malloc/free calls") \ |
duke@435 | 742 | \ |
kvn@2557 | 743 | develop(bool, PrintMallocStatistics, false, \ |
kvn@2557 | 744 | "print malloc/free statistics") \ |
kvn@2557 | 745 | \ |
duke@435 | 746 | develop(bool, ZapResourceArea, trueInDebug, \ |
duke@435 | 747 | "Zap freed resource/arena space with 0xABABABAB") \ |
duke@435 | 748 | \ |
duke@435 | 749 | notproduct(bool, ZapVMHandleArea, trueInDebug, \ |
duke@435 | 750 | "Zap freed VM handle space with 0xBCBCBCBC") \ |
duke@435 | 751 | \ |
duke@435 | 752 | develop(bool, ZapJNIHandleArea, trueInDebug, \ |
duke@435 | 753 | "Zap freed JNI handle space with 0xFEFEFEFE") \ |
duke@435 | 754 | \ |
jcoomes@2191 | 755 | notproduct(bool, ZapStackSegments, trueInDebug, \ |
jcoomes@2191 | 756 | "Zap allocated/freed Stack segments with 0xFADFADED") \ |
jcoomes@2191 | 757 | \ |
jmasa@698 | 758 | develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
duke@435 | 759 | "Zap unused heap space with 0xBAADBABE") \ |
duke@435 | 760 | \ |
jmasa@698 | 761 | develop(bool, TraceZapUnusedHeapArea, false, \ |
jmasa@698 | 762 | "Trace zapping of unused heap space") \ |
jmasa@698 | 763 | \ |
jmasa@698 | 764 | develop(bool, CheckZapUnusedHeapArea, false, \ |
jmasa@698 | 765 | "Check zapping of unused heap space") \ |
jmasa@698 | 766 | \ |
jcoomes@916 | 767 | develop(bool, ZapFillerObjects, trueInDebug, \ |
jcoomes@916 | 768 | "Zap filler objects with 0xDEAFBABE") \ |
jcoomes@916 | 769 | \ |
duke@435 | 770 | develop(bool, PrintVMMessages, true, \ |
duke@435 | 771 | "Print vm messages on console") \ |
duke@435 | 772 | \ |
duke@435 | 773 | product(bool, PrintGCApplicationConcurrentTime, false, \ |
duke@435 | 774 | "Print the time the application has been running") \ |
duke@435 | 775 | \ |
duke@435 | 776 | product(bool, PrintGCApplicationStoppedTime, false, \ |
duke@435 | 777 | "Print the time the application has been stopped") \ |
duke@435 | 778 | \ |
jcoomes@1845 | 779 | notproduct(uintx, ErrorHandlerTest, 0, \ |
jcoomes@1845 | 780 | "If > 0, provokes an error after VM initialization; the value" \ |
jcoomes@1845 | 781 | "determines which error to provoke. See test_error_handler()" \ |
jcoomes@1845 | 782 | "in debug.cpp.") \ |
jcoomes@1845 | 783 | \ |
duke@435 | 784 | develop(bool, Verbose, false, \ |
duke@435 | 785 | "Prints additional debugging information from other modes") \ |
duke@435 | 786 | \ |
duke@435 | 787 | develop(bool, PrintMiscellaneous, false, \ |
duke@435 | 788 | "Prints uncategorized debugging information (requires +Verbose)") \ |
duke@435 | 789 | \ |
duke@435 | 790 | develop(bool, WizardMode, false, \ |
duke@435 | 791 | "Prints much more debugging information") \ |
duke@435 | 792 | \ |
duke@435 | 793 | product(bool, ShowMessageBoxOnError, false, \ |
duke@435 | 794 | "Keep process alive on VM fatal error") \ |
duke@435 | 795 | \ |
ctornqvi@2520 | 796 | product(bool, CreateMinidumpOnCrash, false, \ |
ctornqvi@2520 | 797 | "Create minidump on VM fatal error") \ |
ctornqvi@2520 | 798 | \ |
duke@435 | 799 | product_pd(bool, UseOSErrorReporting, \ |
duke@435 | 800 | "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ |
duke@435 | 801 | \ |
duke@435 | 802 | product(bool, SuppressFatalErrorMessage, false, \ |
duke@435 | 803 | "Do NO Fatal Error report [Avoid deadlock]") \ |
duke@435 | 804 | \ |
duke@435 | 805 | product(ccstrlist, OnError, "", \ |
duke@435 | 806 | "Run user-defined commands on fatal error; see VMError.cpp " \ |
duke@435 | 807 | "for examples") \ |
duke@435 | 808 | \ |
duke@435 | 809 | product(ccstrlist, OnOutOfMemoryError, "", \ |
duke@435 | 810 | "Run user-defined commands on first java.lang.OutOfMemoryError") \ |
duke@435 | 811 | \ |
ysr@1050 | 812 | manageable(bool, HeapDumpBeforeFullGC, false, \ |
ysr@1050 | 813 | "Dump heap to file before any major stop-world GC") \ |
ysr@1050 | 814 | \ |
ysr@1050 | 815 | manageable(bool, HeapDumpAfterFullGC, false, \ |
ysr@1050 | 816 | "Dump heap to file after any major stop-world GC") \ |
ysr@1050 | 817 | \ |
duke@435 | 818 | manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
duke@435 | 819 | "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ |
duke@435 | 820 | \ |
duke@435 | 821 | manageable(ccstr, HeapDumpPath, NULL, \ |
duke@435 | 822 | "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ |
duke@435 | 823 | "directory) of the dump file (defaults to java_pid<pid>.hprof" \ |
duke@435 | 824 | "in the working directory)") \ |
duke@435 | 825 | \ |
duke@435 | 826 | develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ |
duke@435 | 827 | "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ |
duke@435 | 828 | "when the heap usage is larger than this") \ |
duke@435 | 829 | \ |
duke@435 | 830 | develop(uintx, HeapDumpSegmentSize, 1*G, \ |
duke@435 | 831 | "Approximate segment size when generating a segmented heap dump") \ |
duke@435 | 832 | \ |
duke@435 | 833 | develop(bool, BreakAtWarning, false, \ |
duke@435 | 834 | "Execute breakpoint upon encountering VM warning") \ |
duke@435 | 835 | \ |
duke@435 | 836 | product_pd(bool, UseVectoredExceptions, \ |
duke@435 | 837 | "Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \ |
duke@435 | 838 | \ |
duke@435 | 839 | develop(bool, TraceVMOperation, false, \ |
duke@435 | 840 | "Trace vm operations") \ |
duke@435 | 841 | \ |
duke@435 | 842 | develop(bool, UseFakeTimers, false, \ |
duke@435 | 843 | "Tells whether the VM should use system time or a fake timer") \ |
duke@435 | 844 | \ |
duke@435 | 845 | diagnostic(bool, LogCompilation, false, \ |
duke@435 | 846 | "Log compilation activity in detail to hotspot.log or LogFile") \ |
duke@435 | 847 | \ |
duke@435 | 848 | product(bool, PrintCompilation, false, \ |
duke@435 | 849 | "Print compilations") \ |
duke@435 | 850 | \ |
duke@435 | 851 | diagnostic(bool, TraceNMethodInstalls, false, \ |
duke@435 | 852 | "Trace nmethod intallation") \ |
duke@435 | 853 | \ |
jrose@1424 | 854 | diagnostic(intx, ScavengeRootsInCode, 0, \ |
jrose@1424 | 855 | "0: do not allow scavengable oops in the code cache; " \ |
jrose@1424 | 856 | "1: allow scavenging from the code cache; " \ |
jrose@1424 | 857 | "2: emit as many constants as the compiler can see") \ |
jrose@1424 | 858 | \ |
duke@435 | 859 | diagnostic(bool, TraceOSRBreakpoint, false, \ |
duke@435 | 860 | "Trace OSR Breakpoint ") \ |
duke@435 | 861 | \ |
duke@435 | 862 | diagnostic(bool, TraceCompileTriggered, false, \ |
duke@435 | 863 | "Trace compile triggered") \ |
duke@435 | 864 | \ |
duke@435 | 865 | diagnostic(bool, TraceTriggers, false, \ |
duke@435 | 866 | "Trace triggers") \ |
duke@435 | 867 | \ |
duke@435 | 868 | product(bool, AlwaysRestoreFPU, false, \ |
duke@435 | 869 | "Restore the FPU control word after every JNI call (expensive)") \ |
duke@435 | 870 | \ |
duke@435 | 871 | notproduct(bool, PrintCompilation2, false, \ |
duke@435 | 872 | "Print additional statistics per compilation") \ |
duke@435 | 873 | \ |
jrose@535 | 874 | diagnostic(bool, PrintAdapterHandlers, false, \ |
duke@435 | 875 | "Print code generated for i2c/c2i adapters") \ |
duke@435 | 876 | \ |
never@1642 | 877 | develop(bool, VerifyAdapterSharing, false, \ |
never@1642 | 878 | "Verify that the code for shared adapters is the equivalent") \ |
never@1642 | 879 | \ |
jrose@535 | 880 | diagnostic(bool, PrintAssembly, false, \ |
jrose@535 | 881 | "Print assembly code (using external disassembler.so)") \ |
jrose@535 | 882 | \ |
never@805 | 883 | diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
jrose@535 | 884 | "Options string passed to disassembler.so") \ |
jrose@535 | 885 | \ |
jrose@535 | 886 | diagnostic(bool, PrintNMethods, false, \ |
duke@435 | 887 | "Print assembly code for nmethods when generated") \ |
duke@435 | 888 | \ |
jrose@535 | 889 | diagnostic(bool, PrintNativeNMethods, false, \ |
duke@435 | 890 | "Print assembly code for native nmethods when generated") \ |
duke@435 | 891 | \ |
duke@435 | 892 | develop(bool, PrintDebugInfo, false, \ |
duke@435 | 893 | "Print debug information for all nmethods when generated") \ |
duke@435 | 894 | \ |
duke@435 | 895 | develop(bool, PrintRelocations, false, \ |
duke@435 | 896 | "Print relocation information for all nmethods when generated") \ |
duke@435 | 897 | \ |
duke@435 | 898 | develop(bool, PrintDependencies, false, \ |
duke@435 | 899 | "Print dependency information for all nmethods when generated") \ |
duke@435 | 900 | \ |
duke@435 | 901 | develop(bool, PrintExceptionHandlers, false, \ |
duke@435 | 902 | "Print exception handler tables for all nmethods when generated") \ |
duke@435 | 903 | \ |
duke@435 | 904 | develop(bool, InterceptOSException, false, \ |
duke@435 | 905 | "Starts debugger when an implicit OS (e.g., NULL) " \ |
duke@435 | 906 | "exception happens") \ |
duke@435 | 907 | \ |
duke@435 | 908 | notproduct(bool, PrintCodeCache, false, \ |
duke@435 | 909 | "Print the compiled_code cache when exiting") \ |
duke@435 | 910 | \ |
duke@435 | 911 | develop(bool, PrintCodeCache2, false, \ |
duke@435 | 912 | "Print detailed info on the compiled_code cache when exiting") \ |
duke@435 | 913 | \ |
jrose@535 | 914 | diagnostic(bool, PrintStubCode, false, \ |
duke@435 | 915 | "Print generated stub code") \ |
duke@435 | 916 | \ |
duke@435 | 917 | product(bool, StackTraceInThrowable, true, \ |
duke@435 | 918 | "Collect backtrace in throwable when exception happens") \ |
duke@435 | 919 | \ |
duke@435 | 920 | product(bool, OmitStackTraceInFastThrow, true, \ |
duke@435 | 921 | "Omit backtraces for some 'hot' exceptions in optimized code") \ |
duke@435 | 922 | \ |
duke@435 | 923 | product(bool, ProfilerPrintByteCodeStatistics, false, \ |
duke@435 | 924 | "Prints byte code statictics when dumping profiler output") \ |
duke@435 | 925 | \ |
duke@435 | 926 | product(bool, ProfilerRecordPC, false, \ |
duke@435 | 927 | "Collects tick for each 16 byte interval of compiled code") \ |
duke@435 | 928 | \ |
phh@1499 | 929 | product(bool, ProfileVM, false, \ |
duke@435 | 930 | "Profiles ticks that fall within VM (either in the VM Thread " \ |
duke@435 | 931 | "or VM code called through stubs)") \ |
duke@435 | 932 | \ |
duke@435 | 933 | product(bool, ProfileIntervals, false, \ |
duke@435 | 934 | "Prints profiles for each interval (see ProfileIntervalsTicks)") \ |
duke@435 | 935 | \ |
duke@435 | 936 | notproduct(bool, ProfilerCheckIntervals, false, \ |
duke@435 | 937 | "Collect and print info on spacing of profiler ticks") \ |
duke@435 | 938 | \ |
duke@435 | 939 | develop(bool, PrintJVMWarnings, false, \ |
duke@435 | 940 | "Prints warnings for unimplemented JVM functions") \ |
duke@435 | 941 | \ |
kamg@2225 | 942 | product(bool, PrintWarnings, true, \ |
kamg@2225 | 943 | "Prints JVM warnings to output stream") \ |
kamg@2225 | 944 | \ |
duke@435 | 945 | notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
duke@435 | 946 | "Prints warnings for stalled SpinLocks") \ |
duke@435 | 947 | \ |
duke@435 | 948 | develop(bool, InitializeJavaLangSystem, true, \ |
duke@435 | 949 | "Initialize java.lang.System - turn off for individual " \ |
duke@435 | 950 | "method debugging") \ |
duke@435 | 951 | \ |
duke@435 | 952 | develop(bool, InitializeJavaLangString, true, \ |
duke@435 | 953 | "Initialize java.lang.String - turn off for individual " \ |
duke@435 | 954 | "method debugging") \ |
duke@435 | 955 | \ |
duke@435 | 956 | develop(bool, InitializeJavaLangExceptionsErrors, true, \ |
duke@435 | 957 | "Initialize various error and exception classes - turn off for " \ |
duke@435 | 958 | "individual method debugging") \ |
duke@435 | 959 | \ |
duke@435 | 960 | product(bool, RegisterFinalizersAtInit, true, \ |
duke@435 | 961 | "Register finalizable objects at end of Object.<init> or " \ |
phh@1499 | 962 | "after allocation") \ |
duke@435 | 963 | \ |
duke@435 | 964 | develop(bool, RegisterReferences, true, \ |
duke@435 | 965 | "Tells whether the VM should register soft/weak/final/phantom " \ |
duke@435 | 966 | "references") \ |
duke@435 | 967 | \ |
duke@435 | 968 | develop(bool, IgnoreRewrites, false, \ |
duke@435 | 969 | "Supress rewrites of bytecodes in the oopmap generator. " \ |
duke@435 | 970 | "This is unsafe!") \ |
duke@435 | 971 | \ |
duke@435 | 972 | develop(bool, PrintCodeCacheExtension, false, \ |
duke@435 | 973 | "Print extension of code cache") \ |
duke@435 | 974 | \ |
duke@435 | 975 | develop(bool, UsePrivilegedStack, true, \ |
duke@435 | 976 | "Enable the security JVM functions") \ |
duke@435 | 977 | \ |
duke@435 | 978 | develop(bool, IEEEPrecision, true, \ |
duke@435 | 979 | "Enables IEEE precision (for INTEL only)") \ |
duke@435 | 980 | \ |
duke@435 | 981 | develop(bool, ProtectionDomainVerification, true, \ |
duke@435 | 982 | "Verifies protection domain before resolution in system " \ |
duke@435 | 983 | "dictionary") \ |
duke@435 | 984 | \ |
duke@435 | 985 | product(bool, ClassUnloading, true, \ |
duke@435 | 986 | "Do unloading of classes") \ |
duke@435 | 987 | \ |
jrose@909 | 988 | diagnostic(bool, LinkWellKnownClasses, false, \ |
jrose@567 | 989 | "Resolve a well known class as soon as its name is seen") \ |
jrose@567 | 990 | \ |
duke@435 | 991 | develop(bool, DisableStartThread, false, \ |
duke@435 | 992 | "Disable starting of additional Java threads " \ |
duke@435 | 993 | "(for debugging only)") \ |
duke@435 | 994 | \ |
duke@435 | 995 | develop(bool, MemProfiling, false, \ |
duke@435 | 996 | "Write memory usage profiling to log file") \ |
duke@435 | 997 | \ |
duke@435 | 998 | notproduct(bool, PrintSystemDictionaryAtExit, false, \ |
duke@435 | 999 | "Prints the system dictionary at exit") \ |
duke@435 | 1000 | \ |
duke@435 | 1001 | diagnostic(bool, UnsyncloadClass, false, \ |
acorn@949 | 1002 | "Unstable: VM calls loadClass unsynchronized. Custom " \ |
acorn@949 | 1003 | "class loader must call VM synchronized for findClass " \ |
acorn@949 | 1004 | "and defineClass.") \ |
acorn@949 | 1005 | \ |
acorn@949 | 1006 | product(bool, AlwaysLockClassLoader, false, \ |
acorn@949 | 1007 | "Require the VM to acquire the class loader lock before calling " \ |
acorn@949 | 1008 | "loadClass() even for class loaders registering " \ |
phh@1499 | 1009 | "as parallel capable") \ |
acorn@949 | 1010 | \ |
acorn@949 | 1011 | product(bool, AllowParallelDefineClass, false, \ |
acorn@949 | 1012 | "Allow parallel defineClass requests for class loaders " \ |
phh@1499 | 1013 | "registering as parallel capable") \ |
acorn@949 | 1014 | \ |
acorn@949 | 1015 | product(bool, MustCallLoadClassInternal, false, \ |
phh@1499 | 1016 | "Call loadClassInternal() rather than loadClass()") \ |
duke@435 | 1017 | \ |
duke@435 | 1018 | product_pd(bool, DontYieldALot, \ |
duke@435 | 1019 | "Throw away obvious excess yield calls (for SOLARIS only)") \ |
duke@435 | 1020 | \ |
duke@435 | 1021 | product_pd(bool, ConvertSleepToYield, \ |
duke@435 | 1022 | "Converts sleep(0) to thread yield " \ |
duke@435 | 1023 | "(may be off for SOLARIS to improve GUI)") \ |
duke@435 | 1024 | \ |
duke@435 | 1025 | product(bool, ConvertYieldToSleep, false, \ |
duke@435 | 1026 | "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ |
duke@435 | 1027 | "behavior (SOLARIS only)") \ |
duke@435 | 1028 | \ |
duke@435 | 1029 | product(bool, UseBoundThreads, true, \ |
duke@435 | 1030 | "Bind user level threads to kernel threads (for SOLARIS only)") \ |
duke@435 | 1031 | \ |
duke@435 | 1032 | develop(bool, UseDetachedThreads, true, \ |
duke@435 | 1033 | "Use detached threads that are recycled upon termination " \ |
duke@435 | 1034 | "(for SOLARIS only)") \ |
duke@435 | 1035 | \ |
duke@435 | 1036 | product(bool, UseLWPSynchronization, true, \ |
duke@435 | 1037 | "Use LWP-based instead of libthread-based synchronization " \ |
duke@435 | 1038 | "(SPARC only)") \ |
duke@435 | 1039 | \ |
never@805 | 1040 | product(ccstr, SyncKnobs, NULL, \ |
duke@435 | 1041 | "(Unstable) Various monitor synchronization tunables") \ |
duke@435 | 1042 | \ |
duke@435 | 1043 | product(intx, EmitSync, 0, \ |
duke@435 | 1044 | "(Unsafe,Unstable) " \ |
duke@435 | 1045 | " Controls emission of inline sync fast-path code") \ |
duke@435 | 1046 | \ |
duke@435 | 1047 | product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \ |
duke@435 | 1048 | \ |
acorn@1942 | 1049 | product(intx, MonitorBound, 0, "Bound Monitor population") \ |
acorn@1942 | 1050 | \ |
acorn@1942 | 1051 | product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ |
acorn@1942 | 1052 | \ |
duke@435 | 1053 | product(intx, Atomics, 0, \ |
duke@435 | 1054 | "(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \ |
duke@435 | 1055 | \ |
duke@435 | 1056 | product(intx, FenceInstruction, 0, \ |
duke@435 | 1057 | "(Unsafe,Unstable) Experimental") \ |
duke@435 | 1058 | \ |
duke@435 | 1059 | product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ |
duke@435 | 1060 | \ |
duke@435 | 1061 | product(intx, SyncVerbose, 0, "(Unstable)" ) \ |
duke@435 | 1062 | \ |
duke@435 | 1063 | product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ |
duke@435 | 1064 | \ |
duke@435 | 1065 | product(intx, hashCode, 0, \ |
duke@435 | 1066 | "(Unstable) select hashCode generation algorithm" ) \ |
duke@435 | 1067 | \ |
duke@435 | 1068 | product(intx, WorkAroundNPTLTimedWaitHang, 1, \ |
duke@435 | 1069 | "(Unstable, Linux-specific)" \ |
duke@435 | 1070 | " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ |
duke@435 | 1071 | \ |
phh@1499 | 1072 | product(bool, FilterSpuriousWakeups, true, \ |
phh@1499 | 1073 | "Prevent spurious or premature wakeups from object.wait " \ |
phh@1499 | 1074 | "(Solaris only)") \ |
duke@435 | 1075 | \ |
duke@435 | 1076 | product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ |
duke@435 | 1077 | product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ |
duke@435 | 1078 | product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ |
duke@435 | 1079 | \ |
duke@435 | 1080 | develop(bool, UsePthreads, false, \ |
duke@435 | 1081 | "Use pthread-based instead of libthread-based synchronization " \ |
duke@435 | 1082 | "(SPARC only)") \ |
duke@435 | 1083 | \ |
duke@435 | 1084 | product(bool, AdjustConcurrency, false, \ |
duke@435 | 1085 | "call thr_setconcurrency at thread create time to avoid " \ |
duke@435 | 1086 | "LWP starvation on MP systems (For Solaris Only)") \ |
duke@435 | 1087 | \ |
duke@435 | 1088 | develop(bool, UpdateHotSpotCompilerFileOnError, true, \ |
duke@435 | 1089 | "Should the system attempt to update the compiler file when " \ |
duke@435 | 1090 | "an error occurs?") \ |
duke@435 | 1091 | \ |
duke@435 | 1092 | product(bool, ReduceSignalUsage, false, \ |
duke@435 | 1093 | "Reduce the use of OS signals in Java and/or the VM") \ |
duke@435 | 1094 | \ |
duke@435 | 1095 | notproduct(bool, ValidateMarkSweep, false, \ |
duke@435 | 1096 | "Do extra validation during MarkSweep collection") \ |
duke@435 | 1097 | \ |
duke@435 | 1098 | notproduct(bool, RecordMarkSweepCompaction, false, \ |
duke@435 | 1099 | "Enable GC-to-GC recording and querying of compaction during " \ |
duke@435 | 1100 | "MarkSweep") \ |
duke@435 | 1101 | \ |
duke@435 | 1102 | develop_pd(bool, ShareVtableStubs, \ |
duke@435 | 1103 | "Share vtable stubs (smaller code but worse branch prediction") \ |
duke@435 | 1104 | \ |
duke@435 | 1105 | develop(bool, LoadLineNumberTables, true, \ |
duke@435 | 1106 | "Tells whether the class file parser loads line number tables") \ |
duke@435 | 1107 | \ |
duke@435 | 1108 | develop(bool, LoadLocalVariableTables, true, \ |
duke@435 | 1109 | "Tells whether the class file parser loads local variable tables")\ |
duke@435 | 1110 | \ |
duke@435 | 1111 | develop(bool, LoadLocalVariableTypeTables, true, \ |
duke@435 | 1112 | "Tells whether the class file parser loads local variable type tables")\ |
duke@435 | 1113 | \ |
duke@435 | 1114 | product(bool, AllowUserSignalHandlers, false, \ |
duke@435 | 1115 | "Do not complain if the application installs signal handlers " \ |
duke@435 | 1116 | "(Solaris & Linux only)") \ |
duke@435 | 1117 | \ |
duke@435 | 1118 | product(bool, UseSignalChaining, true, \ |
duke@435 | 1119 | "Use signal-chaining to invoke signal handlers installed " \ |
duke@435 | 1120 | "by the application (Solaris & Linux only)") \ |
duke@435 | 1121 | \ |
duke@435 | 1122 | product(bool, UseAltSigs, false, \ |
duke@435 | 1123 | "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ |
phh@1499 | 1124 | "internal signals (Solaris only)") \ |
duke@435 | 1125 | \ |
duke@435 | 1126 | product(bool, UseSpinning, false, \ |
duke@435 | 1127 | "Use spinning in monitor inflation and before entry") \ |
duke@435 | 1128 | \ |
duke@435 | 1129 | product(bool, PreSpinYield, false, \ |
duke@435 | 1130 | "Yield before inner spinning loop") \ |
duke@435 | 1131 | \ |
duke@435 | 1132 | product(bool, PostSpinYield, true, \ |
duke@435 | 1133 | "Yield after inner spinning loop") \ |
duke@435 | 1134 | \ |
duke@435 | 1135 | product(bool, AllowJNIEnvProxy, false, \ |
duke@435 | 1136 | "Allow JNIEnv proxies for jdbx") \ |
duke@435 | 1137 | \ |
duke@435 | 1138 | product(bool, JNIDetachReleasesMonitors, true, \ |
duke@435 | 1139 | "JNI DetachCurrentThread releases monitors owned by thread") \ |
duke@435 | 1140 | \ |
duke@435 | 1141 | product(bool, RestoreMXCSROnJNICalls, false, \ |
duke@435 | 1142 | "Restore MXCSR when returning from JNI calls") \ |
duke@435 | 1143 | \ |
duke@435 | 1144 | product(bool, CheckJNICalls, false, \ |
duke@435 | 1145 | "Verify all arguments to JNI calls") \ |
duke@435 | 1146 | \ |
duke@435 | 1147 | product(bool, UseFastJNIAccessors, true, \ |
duke@435 | 1148 | "Use optimized versions of Get<Primitive>Field") \ |
duke@435 | 1149 | \ |
duke@435 | 1150 | product(bool, EagerXrunInit, false, \ |
duke@435 | 1151 | "Eagerly initialize -Xrun libraries; allows startup profiling, " \ |
duke@435 | 1152 | " but not all -Xrun libraries may support the state of the VM at this time") \ |
duke@435 | 1153 | \ |
duke@435 | 1154 | product(bool, PreserveAllAnnotations, false, \ |
duke@435 | 1155 | "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ |
duke@435 | 1156 | \ |
duke@435 | 1157 | develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ |
duke@435 | 1158 | "Number of OutOfMemoryErrors preallocated with backtrace") \ |
duke@435 | 1159 | \ |
duke@435 | 1160 | product(bool, LazyBootClassLoader, true, \ |
duke@435 | 1161 | "Enable/disable lazy opening of boot class path entries") \ |
duke@435 | 1162 | \ |
duke@435 | 1163 | diagnostic(bool, UseIncDec, true, \ |
duke@435 | 1164 | "Use INC, DEC instructions on x86") \ |
duke@435 | 1165 | \ |
kvn@654 | 1166 | product(bool, UseNewLongLShift, false, \ |
kvn@654 | 1167 | "Use optimized bitwise shift left") \ |
kvn@654 | 1168 | \ |
duke@435 | 1169 | product(bool, UseStoreImmI16, true, \ |
duke@435 | 1170 | "Use store immediate 16-bits value instruction on x86") \ |
duke@435 | 1171 | \ |
duke@435 | 1172 | product(bool, UseAddressNop, false, \ |
duke@435 | 1173 | "Use '0F 1F [addr]' NOP instructions on x86 cpus") \ |
duke@435 | 1174 | \ |
duke@435 | 1175 | product(bool, UseXmmLoadAndClearUpper, true, \ |
duke@435 | 1176 | "Load low part of XMM register and clear upper part") \ |
duke@435 | 1177 | \ |
duke@435 | 1178 | product(bool, UseXmmRegToRegMoveAll, false, \ |
duke@435 | 1179 | "Copy all XMM register bits when moving value between registers") \ |
duke@435 | 1180 | \ |
kvn@506 | 1181 | product(bool, UseXmmI2D, false, \ |
kvn@506 | 1182 | "Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \ |
kvn@506 | 1183 | \ |
kvn@506 | 1184 | product(bool, UseXmmI2F, false, \ |
kvn@506 | 1185 | "Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \ |
kvn@506 | 1186 | \ |
kvn@840 | 1187 | product(bool, UseXMMForArrayCopy, false, \ |
kvn@840 | 1188 | "Use SSE2 MOVQ instruction for Arraycopy") \ |
kvn@840 | 1189 | \ |
kvn@840 | 1190 | product(bool, UseUnalignedLoadStores, false, \ |
kvn@840 | 1191 | "Use SSE2 MOVDQU instruction for Arraycopy") \ |
kvn@840 | 1192 | \ |
duke@435 | 1193 | product(intx, FieldsAllocationStyle, 1, \ |
kvn@1801 | 1194 | "0 - type based with oops first, 1 - with oops last, " \ |
kvn@1801 | 1195 | "2 - oops in super and sub classes are together") \ |
duke@435 | 1196 | \ |
duke@435 | 1197 | product(bool, CompactFields, true, \ |
duke@435 | 1198 | "Allocate nonstatic fields in gaps between previous fields") \ |
duke@435 | 1199 | \ |
duke@435 | 1200 | notproduct(bool, PrintCompactFieldsSavings, false, \ |
duke@435 | 1201 | "Print how many words were saved with CompactFields") \ |
duke@435 | 1202 | \ |
duke@435 | 1203 | product(bool, UseBiasedLocking, true, \ |
duke@435 | 1204 | "Enable biased locking in JVM") \ |
duke@435 | 1205 | \ |
duke@435 | 1206 | product(intx, BiasedLockingStartupDelay, 4000, \ |
duke@435 | 1207 | "Number of milliseconds to wait before enabling biased locking") \ |
duke@435 | 1208 | \ |
duke@435 | 1209 | diagnostic(bool, PrintBiasedLockingStatistics, false, \ |
duke@435 | 1210 | "Print statistics of biased locking in JVM") \ |
duke@435 | 1211 | \ |
duke@435 | 1212 | product(intx, BiasedLockingBulkRebiasThreshold, 20, \ |
duke@435 | 1213 | "Threshold of number of revocations per type to try to " \ |
duke@435 | 1214 | "rebias all objects in the heap of that type") \ |
duke@435 | 1215 | \ |
duke@435 | 1216 | product(intx, BiasedLockingBulkRevokeThreshold, 40, \ |
duke@435 | 1217 | "Threshold of number of revocations per type to permanently " \ |
duke@435 | 1218 | "revoke biases of all objects in the heap of that type") \ |
duke@435 | 1219 | \ |
duke@435 | 1220 | product(intx, BiasedLockingDecayTime, 25000, \ |
duke@435 | 1221 | "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ |
duke@435 | 1222 | "type after previous bulk rebias") \ |
duke@435 | 1223 | \ |
duke@435 | 1224 | /* tracing */ \ |
duke@435 | 1225 | \ |
duke@435 | 1226 | notproduct(bool, TraceRuntimeCalls, false, \ |
duke@435 | 1227 | "Trace run-time calls") \ |
duke@435 | 1228 | \ |
duke@435 | 1229 | develop(bool, TraceJNICalls, false, \ |
duke@435 | 1230 | "Trace JNI calls") \ |
duke@435 | 1231 | \ |
duke@435 | 1232 | notproduct(bool, TraceJVMCalls, false, \ |
duke@435 | 1233 | "Trace JVM calls") \ |
duke@435 | 1234 | \ |
never@805 | 1235 | product(ccstr, TraceJVMTI, NULL, \ |
duke@435 | 1236 | "Trace flags for JVMTI functions and events") \ |
duke@435 | 1237 | \ |
duke@435 | 1238 | /* This option can change an EMCP method into an obsolete method. */ \ |
duke@435 | 1239 | /* This can affect tests that except specific methods to be EMCP. */ \ |
duke@435 | 1240 | /* This option should be used with caution. */ \ |
duke@435 | 1241 | product(bool, StressLdcRewrite, false, \ |
duke@435 | 1242 | "Force ldc -> ldc_w rewrite during RedefineClasses") \ |
duke@435 | 1243 | \ |
duke@435 | 1244 | product(intx, TraceRedefineClasses, 0, \ |
duke@435 | 1245 | "Trace level for JVMTI RedefineClasses") \ |
duke@435 | 1246 | \ |
jrose@1929 | 1247 | develop(bool, StressMethodComparator, false, \ |
jrose@1929 | 1248 | "run the MethodComparator on all loaded methods") \ |
jrose@1929 | 1249 | \ |
duke@435 | 1250 | /* change to false by default sometime after Mustang */ \ |
duke@435 | 1251 | product(bool, VerifyMergedCPBytecodes, true, \ |
duke@435 | 1252 | "Verify bytecodes after RedefineClasses constant pool merging") \ |
duke@435 | 1253 | \ |
duke@435 | 1254 | develop(bool, TraceJNIHandleAllocation, false, \ |
duke@435 | 1255 | "Trace allocation/deallocation of JNI handle blocks") \ |
duke@435 | 1256 | \ |
duke@435 | 1257 | develop(bool, TraceThreadEvents, false, \ |
duke@435 | 1258 | "Trace all thread events") \ |
duke@435 | 1259 | \ |
duke@435 | 1260 | develop(bool, TraceBytecodes, false, \ |
duke@435 | 1261 | "Trace bytecode execution") \ |
duke@435 | 1262 | \ |
duke@435 | 1263 | develop(bool, TraceClassInitialization, false, \ |
duke@435 | 1264 | "Trace class initialization") \ |
duke@435 | 1265 | \ |
duke@435 | 1266 | develop(bool, TraceExceptions, false, \ |
duke@435 | 1267 | "Trace exceptions") \ |
duke@435 | 1268 | \ |
duke@435 | 1269 | develop(bool, TraceICs, false, \ |
duke@435 | 1270 | "Trace inline cache changes") \ |
duke@435 | 1271 | \ |
duke@435 | 1272 | notproduct(bool, TraceInvocationCounterOverflow, false, \ |
duke@435 | 1273 | "Trace method invocation counter overflow") \ |
duke@435 | 1274 | \ |
duke@435 | 1275 | develop(bool, TraceInlineCacheClearing, false, \ |
duke@435 | 1276 | "Trace clearing of inline caches in nmethods") \ |
duke@435 | 1277 | \ |
duke@435 | 1278 | develop(bool, TraceDependencies, false, \ |
duke@435 | 1279 | "Trace dependencies") \ |
duke@435 | 1280 | \ |
duke@435 | 1281 | develop(bool, VerifyDependencies, trueInDebug, \ |
duke@435 | 1282 | "Exercise and verify the compilation dependency mechanism") \ |
duke@435 | 1283 | \ |
duke@435 | 1284 | develop(bool, TraceNewOopMapGeneration, false, \ |
duke@435 | 1285 | "Trace OopMapGeneration") \ |
duke@435 | 1286 | \ |
duke@435 | 1287 | develop(bool, TraceNewOopMapGenerationDetailed, false, \ |
duke@435 | 1288 | "Trace OopMapGeneration: print detailed cell states") \ |
duke@435 | 1289 | \ |
duke@435 | 1290 | develop(bool, TimeOopMap, false, \ |
duke@435 | 1291 | "Time calls to GenerateOopMap::compute_map() in sum") \ |
duke@435 | 1292 | \ |
duke@435 | 1293 | develop(bool, TimeOopMap2, false, \ |
duke@435 | 1294 | "Time calls to GenerateOopMap::compute_map() individually") \ |
duke@435 | 1295 | \ |
duke@435 | 1296 | develop(bool, TraceMonitorMismatch, false, \ |
duke@435 | 1297 | "Trace monitor matching failures during OopMapGeneration") \ |
duke@435 | 1298 | \ |
duke@435 | 1299 | develop(bool, TraceOopMapRewrites, false, \ |
duke@435 | 1300 | "Trace rewritting of method oops during oop map generation") \ |
duke@435 | 1301 | \ |
duke@435 | 1302 | develop(bool, TraceSafepoint, false, \ |
duke@435 | 1303 | "Trace safepoint operations") \ |
duke@435 | 1304 | \ |
duke@435 | 1305 | develop(bool, TraceICBuffer, false, \ |
duke@435 | 1306 | "Trace usage of IC buffer") \ |
duke@435 | 1307 | \ |
duke@435 | 1308 | develop(bool, TraceCompiledIC, false, \ |
duke@435 | 1309 | "Trace changes of compiled IC") \ |
duke@435 | 1310 | \ |
duke@435 | 1311 | notproduct(bool, TraceZapDeadLocals, false, \ |
duke@435 | 1312 | "Trace zapping dead locals") \ |
duke@435 | 1313 | \ |
duke@435 | 1314 | develop(bool, TraceStartupTime, false, \ |
duke@435 | 1315 | "Trace setup time") \ |
duke@435 | 1316 | \ |
duke@435 | 1317 | product(ccstr, HPILibPath, NULL, \ |
duke@435 | 1318 | "Specify alternate path to HPI library") \ |
duke@435 | 1319 | \ |
duke@435 | 1320 | develop(bool, TraceProtectionDomainVerification, false, \ |
duke@435 | 1321 | "Trace protection domain verifcation") \ |
duke@435 | 1322 | \ |
duke@435 | 1323 | develop(bool, TraceClearedExceptions, false, \ |
duke@435 | 1324 | "Prints when an exception is forcibly cleared") \ |
duke@435 | 1325 | \ |
duke@435 | 1326 | product(bool, TraceClassResolution, false, \ |
duke@435 | 1327 | "Trace all constant pool resolutions (for debugging)") \ |
duke@435 | 1328 | \ |
duke@435 | 1329 | product(bool, TraceBiasedLocking, false, \ |
duke@435 | 1330 | "Trace biased locking in JVM") \ |
duke@435 | 1331 | \ |
duke@435 | 1332 | product(bool, TraceMonitorInflation, false, \ |
duke@435 | 1333 | "Trace monitor inflation in JVM") \ |
duke@435 | 1334 | \ |
duke@435 | 1335 | /* assembler */ \ |
duke@435 | 1336 | product(bool, Use486InstrsOnly, false, \ |
duke@435 | 1337 | "Use 80486 Compliant instruction subset") \ |
duke@435 | 1338 | \ |
duke@435 | 1339 | /* gc */ \ |
duke@435 | 1340 | \ |
duke@435 | 1341 | product(bool, UseSerialGC, false, \ |
ysr@777 | 1342 | "Use the serial garbage collector") \ |
ysr@777 | 1343 | \ |
tonyp@1628 | 1344 | product(bool, UseG1GC, false, \ |
ysr@777 | 1345 | "Use the Garbage-First garbage collector") \ |
duke@435 | 1346 | \ |
duke@435 | 1347 | product(bool, UseParallelGC, false, \ |
duke@435 | 1348 | "Use the Parallel Scavenge garbage collector") \ |
duke@435 | 1349 | \ |
duke@435 | 1350 | product(bool, UseParallelOldGC, false, \ |
duke@435 | 1351 | "Use the Parallel Old garbage collector") \ |
duke@435 | 1352 | \ |
duke@435 | 1353 | product(bool, UseParallelOldGCCompacting, true, \ |
duke@435 | 1354 | "In the Parallel Old garbage collector use parallel compaction") \ |
duke@435 | 1355 | \ |
duke@435 | 1356 | product(bool, UseParallelDensePrefixUpdate, true, \ |
duke@435 | 1357 | "In the Parallel Old garbage collector use parallel dense" \ |
duke@435 | 1358 | " prefix update") \ |
duke@435 | 1359 | \ |
duke@435 | 1360 | product(uintx, HeapMaximumCompactionInterval, 20, \ |
duke@435 | 1361 | "How often should we maximally compact the heap (not allowing " \ |
duke@435 | 1362 | "any dead space)") \ |
duke@435 | 1363 | \ |
duke@435 | 1364 | product(uintx, HeapFirstMaximumCompactionCount, 3, \ |
duke@435 | 1365 | "The collection count for the first maximum compaction") \ |
duke@435 | 1366 | \ |
duke@435 | 1367 | product(bool, UseMaximumCompactionOnSystemGC, true, \ |
duke@435 | 1368 | "In the Parallel Old garbage collector maximum compaction for " \ |
duke@435 | 1369 | "a system GC") \ |
duke@435 | 1370 | \ |
duke@435 | 1371 | product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ |
duke@435 | 1372 | "The mean used by the par compact dead wood" \ |
duke@435 | 1373 | "limiter (a number between 0-100).") \ |
duke@435 | 1374 | \ |
duke@435 | 1375 | product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ |
duke@435 | 1376 | "The standard deviation used by the par compact dead wood" \ |
duke@435 | 1377 | "limiter (a number between 0-100).") \ |
duke@435 | 1378 | \ |
duke@435 | 1379 | product(bool, UseParallelOldGCDensePrefix, true, \ |
duke@435 | 1380 | "Use a dense prefix with the Parallel Old garbage collector") \ |
duke@435 | 1381 | \ |
duke@435 | 1382 | product(uintx, ParallelGCThreads, 0, \ |
duke@435 | 1383 | "Number of parallel threads parallel gc will use") \ |
duke@435 | 1384 | \ |
jcoomes@918 | 1385 | develop(bool, ParallelOldGCSplitALot, false, \ |
jcoomes@918 | 1386 | "Provoke splitting (copying data from a young gen space to" \ |
jcoomes@918 | 1387 | "multiple destination spaces)") \ |
jcoomes@918 | 1388 | \ |
jcoomes@918 | 1389 | develop(uintx, ParallelOldGCSplitInterval, 3, \ |
jcoomes@918 | 1390 | "How often to provoke splitting a young gen space") \ |
duke@435 | 1391 | \ |
jcoomes@810 | 1392 | develop(bool, TraceRegionTasksQueuing, false, \ |
jcoomes@810 | 1393 | "Trace the queuing of the region tasks") \ |
duke@435 | 1394 | \ |
jmasa@1719 | 1395 | product(uintx, ConcGCThreads, 0, \ |
jmasa@1719 | 1396 | "Number of threads concurrent gc will use") \ |
ysr@777 | 1397 | \ |
duke@435 | 1398 | product(uintx, YoungPLABSize, 4096, \ |
duke@435 | 1399 | "Size of young gen promotion labs (in HeapWords)") \ |
duke@435 | 1400 | \ |
duke@435 | 1401 | product(uintx, OldPLABSize, 1024, \ |
duke@435 | 1402 | "Size of old gen promotion labs (in HeapWords)") \ |
duke@435 | 1403 | \ |
duke@435 | 1404 | product(uintx, GCTaskTimeStampEntries, 200, \ |
duke@435 | 1405 | "Number of time stamp entries per gc worker thread") \ |
duke@435 | 1406 | \ |
duke@435 | 1407 | product(bool, AlwaysTenure, false, \ |
duke@435 | 1408 | "Always tenure objects in eden. (ParallelGC only)") \ |
duke@435 | 1409 | \ |
duke@435 | 1410 | product(bool, NeverTenure, false, \ |
phh@1499 | 1411 | "Never tenure objects in eden, May tenure on overflow " \ |
phh@1499 | 1412 | "(ParallelGC only)") \ |
duke@435 | 1413 | \ |
duke@435 | 1414 | product(bool, ScavengeBeforeFullGC, true, \ |
phh@1499 | 1415 | "Scavenge youngest generation before each full GC, " \ |
phh@1499 | 1416 | "used with UseParallelGC") \ |
duke@435 | 1417 | \ |
duke@435 | 1418 | develop(bool, ScavengeWithObjectsInToSpace, false, \ |
duke@435 | 1419 | "Allow scavenges to occur when to_space contains objects.") \ |
duke@435 | 1420 | \ |
duke@435 | 1421 | product(bool, UseConcMarkSweepGC, false, \ |
duke@435 | 1422 | "Use Concurrent Mark-Sweep GC in the old generation") \ |
duke@435 | 1423 | \ |
duke@435 | 1424 | product(bool, ExplicitGCInvokesConcurrent, false, \ |
duke@435 | 1425 | "A System.gc() request invokes a concurrent collection;" \ |
duke@435 | 1426 | " (effective only when UseConcMarkSweepGC)") \ |
duke@435 | 1427 | \ |
duke@435 | 1428 | product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ |
phh@1499 | 1429 | "A System.gc() request invokes a concurrent collection and " \ |
phh@1499 | 1430 | "also unloads classes during such a concurrent gc cycle " \ |
phh@1499 | 1431 | "(effective only when UseConcMarkSweepGC)") \ |
duke@435 | 1432 | \ |
ysr@1875 | 1433 | product(bool, GCLockerInvokesConcurrent, false, \ |
ysr@1875 | 1434 | "The exit of a JNI CS necessitating a scavenge also" \ |
ysr@1875 | 1435 | " kicks off a bkgrd concurrent collection") \ |
ysr@1875 | 1436 | \ |
tonyp@2333 | 1437 | product(uintx, GCLockerEdenExpansionPercent, 5, \ |
tonyp@2333 | 1438 | "How much the GC can expand the eden by while the GC locker " \ |
tonyp@2333 | 1439 | "is active (as a percentage)") \ |
tonyp@2333 | 1440 | \ |
duke@435 | 1441 | develop(bool, UseCMSAdaptiveFreeLists, true, \ |
duke@435 | 1442 | "Use Adaptive Free Lists in the CMS generation") \ |
duke@435 | 1443 | \ |
duke@435 | 1444 | develop(bool, UseAsyncConcMarkSweepGC, true, \ |
duke@435 | 1445 | "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ |
duke@435 | 1446 | \ |
duke@435 | 1447 | develop(bool, RotateCMSCollectionTypes, false, \ |
duke@435 | 1448 | "Rotate the CMS collections among concurrent and STW") \ |
duke@435 | 1449 | \ |
duke@435 | 1450 | product(bool, UseCMSBestFit, true, \ |
duke@435 | 1451 | "Use CMS best fit allocation strategy") \ |
duke@435 | 1452 | \ |
duke@435 | 1453 | product(bool, UseCMSCollectionPassing, true, \ |
duke@435 | 1454 | "Use passing of collection from background to foreground") \ |
duke@435 | 1455 | \ |
duke@435 | 1456 | product(bool, UseParNewGC, false, \ |
duke@435 | 1457 | "Use parallel threads in the new generation.") \ |
duke@435 | 1458 | \ |
duke@435 | 1459 | product(bool, ParallelGCVerbose, false, \ |
duke@435 | 1460 | "Verbose output for parallel GC.") \ |
duke@435 | 1461 | \ |
duke@435 | 1462 | product(intx, ParallelGCBufferWastePct, 10, \ |
duke@435 | 1463 | "wasted fraction of parallel allocation buffer.") \ |
duke@435 | 1464 | \ |
duke@435 | 1465 | product(bool, ParallelGCRetainPLAB, true, \ |
duke@435 | 1466 | "Retain parallel allocation buffers across scavenges.") \ |
duke@435 | 1467 | \ |
duke@435 | 1468 | product(intx, TargetPLABWastePct, 10, \ |
duke@435 | 1469 | "target wasted space in last buffer as pct of overall allocation")\ |
duke@435 | 1470 | \ |
duke@435 | 1471 | product(uintx, PLABWeight, 75, \ |
duke@435 | 1472 | "Percentage (0-100) used to weight the current sample when" \ |
duke@435 | 1473 | "computing exponentially decaying average for ResizePLAB.") \ |
duke@435 | 1474 | \ |
duke@435 | 1475 | product(bool, ResizePLAB, true, \ |
duke@435 | 1476 | "Dynamically resize (survivor space) promotion labs") \ |
duke@435 | 1477 | \ |
duke@435 | 1478 | product(bool, PrintPLAB, false, \ |
duke@435 | 1479 | "Print (survivor space) promotion labs sizing decisions") \ |
duke@435 | 1480 | \ |
duke@435 | 1481 | product(intx, ParGCArrayScanChunk, 50, \ |
duke@435 | 1482 | "Scan a subset and push remainder, if array is bigger than this") \ |
duke@435 | 1483 | \ |
ysr@1130 | 1484 | product(bool, ParGCUseLocalOverflow, false, \ |
ysr@1130 | 1485 | "Instead of a global overflow list, use local overflow stacks") \ |
ysr@1130 | 1486 | \ |
ysr@1114 | 1487 | product(bool, ParGCTrimOverflow, true, \ |
ysr@1130 | 1488 | "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
ysr@1114 | 1489 | \ |
ysr@969 | 1490 | notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
ysr@969 | 1491 | "Whether we should simulate work queue overflow in ParNew") \ |
ysr@969 | 1492 | \ |
ysr@969 | 1493 | notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ |
phh@1499 | 1494 | "An `interval' counter that determines how frequently " \ |
phh@1499 | 1495 | "we simulate overflow; a smaller number increases frequency") \ |
ysr@969 | 1496 | \ |
ysr@969 | 1497 | product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ |
duke@435 | 1498 | "The desired number of objects to claim from the overflow list") \ |
duke@435 | 1499 | \ |
ysr@1580 | 1500 | product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
duke@435 | 1501 | "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
duke@435 | 1502 | "parallel GC.") \ |
duke@435 | 1503 | \ |
ysr@1580 | 1504 | product(uintx, OldPLABWeight, 50, \ |
ysr@1580 | 1505 | "Percentage (0-100) used to weight the current sample when" \ |
ysr@1580 | 1506 | "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
ysr@1580 | 1507 | \ |
ysr@1580 | 1508 | product(bool, ResizeOldPLAB, true, \ |
ysr@1580 | 1509 | "Dynamically resize (old gen) promotion labs") \ |
ysr@1580 | 1510 | \ |
ysr@1580 | 1511 | product(bool, PrintOldPLAB, false, \ |
ysr@1580 | 1512 | "Print (old gen) promotion labs sizing decisions") \ |
ysr@1580 | 1513 | \ |
ysr@1580 | 1514 | product(uintx, CMSOldPLABMin, 16, \ |
ysr@1580 | 1515 | "Min size of CMS gen promotion lab caches per worker per blksize")\ |
ysr@1580 | 1516 | \ |
ysr@1580 | 1517 | product(uintx, CMSOldPLABMax, 1024, \ |
ysr@1580 | 1518 | "Max size of CMS gen promotion lab caches per worker per blksize")\ |
ysr@1580 | 1519 | \ |
ysr@1580 | 1520 | product(uintx, CMSOldPLABNumRefills, 4, \ |
ysr@1580 | 1521 | "Nominal number of refills of CMS gen promotion lab cache" \ |
ysr@1580 | 1522 | " per worker per block size") \ |
ysr@1580 | 1523 | \ |
ysr@1580 | 1524 | product(bool, CMSOldPLABResizeQuicker, false, \ |
ysr@1580 | 1525 | "Whether to react on-the-fly during a scavenge to a sudden" \ |
ysr@1580 | 1526 | " change in block demand rate") \ |
ysr@1580 | 1527 | \ |
ysr@1580 | 1528 | product(uintx, CMSOldPLABToleranceFactor, 4, \ |
ysr@1580 | 1529 | "The tolerance of the phase-change detector for on-the-fly" \ |
ysr@1580 | 1530 | " PLAB resizing during a scavenge") \ |
ysr@1580 | 1531 | \ |
ysr@1580 | 1532 | product(uintx, CMSOldPLABReactivityFactor, 2, \ |
ysr@1580 | 1533 | "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
ysr@1580 | 1534 | " during a scavenge") \ |
ysr@1580 | 1535 | \ |
ysr@1580 | 1536 | product(uintx, CMSOldPLABReactivityCeiling, 10, \ |
ysr@1580 | 1537 | "The clamping of the gain in the feedback loop for on-the-fly" \ |
ysr@1580 | 1538 | " PLAB resizing during a scavenge") \ |
ysr@1580 | 1539 | \ |
duke@435 | 1540 | product(bool, AlwaysPreTouch, false, \ |
duke@435 | 1541 | "It forces all freshly committed pages to be pre-touched.") \ |
duke@435 | 1542 | \ |
duke@435 | 1543 | product(bool, CMSUseOldDefaults, false, \ |
phh@1499 | 1544 | "A flag temporarily introduced to allow reverting to some " \ |
phh@1499 | 1545 | "older default settings; older as of 6.0") \ |
duke@435 | 1546 | \ |
duke@435 | 1547 | product(intx, CMSYoungGenPerWorker, 16*M, \ |
duke@435 | 1548 | "The amount of young gen chosen by default per GC worker " \ |
phh@1499 | 1549 | "thread available") \ |
duke@435 | 1550 | \ |
ysr@777 | 1551 | product(bool, GCOverheadReporting, false, \ |
ysr@777 | 1552 | "Enables the GC overhead reporting facility") \ |
ysr@777 | 1553 | \ |
ysr@777 | 1554 | product(intx, GCOverheadReportingPeriodMS, 100, \ |
ysr@777 | 1555 | "Reporting period for conc GC overhead reporting, in ms ") \ |
ysr@777 | 1556 | \ |
duke@435 | 1557 | product(bool, CMSIncrementalMode, false, \ |
duke@435 | 1558 | "Whether CMS GC should operate in \"incremental\" mode") \ |
duke@435 | 1559 | \ |
duke@435 | 1560 | product(uintx, CMSIncrementalDutyCycle, 10, \ |
duke@435 | 1561 | "CMS incremental mode duty cycle (a percentage, 0-100). If" \ |
duke@435 | 1562 | "CMSIncrementalPacing is enabled, then this is just the initial" \ |
duke@435 | 1563 | "value") \ |
duke@435 | 1564 | \ |
duke@435 | 1565 | product(bool, CMSIncrementalPacing, true, \ |
duke@435 | 1566 | "Whether the CMS incremental mode duty cycle should be " \ |
duke@435 | 1567 | "automatically adjusted") \ |
duke@435 | 1568 | \ |
duke@435 | 1569 | product(uintx, CMSIncrementalDutyCycleMin, 0, \ |
phh@1499 | 1570 | "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
phh@1499 | 1571 | "enabled (a percentage, 0-100)") \ |
duke@435 | 1572 | \ |
duke@435 | 1573 | product(uintx, CMSIncrementalSafetyFactor, 10, \ |
phh@1499 | 1574 | "Percentage (0-100) used to add conservatism when computing the " \ |
phh@1499 | 1575 | "duty cycle") \ |
duke@435 | 1576 | \ |
duke@435 | 1577 | product(uintx, CMSIncrementalOffset, 0, \ |
duke@435 | 1578 | "Percentage (0-100) by which the CMS incremental mode duty cycle" \ |
phh@1499 | 1579 | " is shifted to the right within the period between young GCs") \ |
duke@435 | 1580 | \ |
ysr@1580 | 1581 | product(uintx, CMSExpAvgFactor, 50, \ |
ysr@1580 | 1582 | "Percentage (0-100) used to weight the current sample when" \ |
ysr@1580 | 1583 | "computing exponential averages for CMS statistics.") \ |
ysr@1580 | 1584 | \ |
ysr@1580 | 1585 | product(uintx, CMS_FLSWeight, 75, \ |
ysr@1580 | 1586 | "Percentage (0-100) used to weight the current sample when" \ |
ysr@1580 | 1587 | "computing exponentially decating averages for CMS FLS statistics.") \ |
ysr@1580 | 1588 | \ |
ysr@1580 | 1589 | product(uintx, CMS_FLSPadding, 1, \ |
ysr@1580 | 1590 | "The multiple of deviation from mean to use for buffering" \ |
duke@435 | 1591 | "against volatility in free list demand.") \ |
duke@435 | 1592 | \ |
duke@435 | 1593 | product(uintx, FLSCoalescePolicy, 2, \ |
duke@435 | 1594 | "CMS: Aggression level for coalescing, increasing from 0 to 4") \ |
duke@435 | 1595 | \ |
ysr@1580 | 1596 | product(bool, FLSAlwaysCoalesceLarge, false, \ |
ysr@1580 | 1597 | "CMS: Larger free blocks are always available for coalescing") \ |
ysr@1580 | 1598 | \ |
ysr@1580 | 1599 | product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
ysr@1580 | 1600 | "CMS: the smaller the percentage the greater the coalition force")\ |
ysr@1580 | 1601 | \ |
ysr@1580 | 1602 | product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
ysr@1580 | 1603 | "CMS: the factor by which to inflate estimated demand of small" \ |
ysr@1580 | 1604 | " block sizes to prevent coalescing with an adjoining block") \ |
ysr@1580 | 1605 | \ |
ysr@1580 | 1606 | product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
ysr@1580 | 1607 | "CMS: the factor by which to inflate estimated demand of large" \ |
ysr@1580 | 1608 | " block sizes to prevent coalescing with an adjoining block") \ |
ysr@1580 | 1609 | \ |
ysr@1580 | 1610 | product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
ysr@1580 | 1611 | "CMS: the factor by which to inflate estimated demand of small" \ |
ysr@1580 | 1612 | " block sizes to prevent splitting to supply demand for smaller" \ |
ysr@1580 | 1613 | " blocks") \ |
ysr@1580 | 1614 | \ |
ysr@1580 | 1615 | product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
ysr@1580 | 1616 | "CMS: the factor by which to inflate estimated demand of large" \ |
ysr@1580 | 1617 | " block sizes to prevent splitting to supply demand for smaller" \ |
ysr@1580 | 1618 | " blocks") \ |
ysr@1580 | 1619 | \ |
ysr@1580 | 1620 | product(bool, CMSExtrapolateSweep, false, \ |
ysr@1580 | 1621 | "CMS: cushion for block demand during sweep") \ |
ysr@1580 | 1622 | \ |
ysr@1580 | 1623 | product(uintx, CMS_SweepWeight, 75, \ |
phh@1499 | 1624 | "Percentage (0-100) used to weight the current sample when " \ |
phh@1499 | 1625 | "computing exponentially decaying average for inter-sweep " \ |
phh@1499 | 1626 | "duration") \ |
duke@435 | 1627 | \ |
ysr@1580 | 1628 | product(uintx, CMS_SweepPadding, 1, \ |
phh@1499 | 1629 | "The multiple of deviation from mean to use for buffering " \ |
duke@435 | 1630 | "against volatility in inter-sweep duration.") \ |
duke@435 | 1631 | \ |
duke@435 | 1632 | product(uintx, CMS_SweepTimerThresholdMillis, 10, \ |
duke@435 | 1633 | "Skip block flux-rate sampling for an epoch unless inter-sweep " \ |
phh@1499 | 1634 | "duration exceeds this threhold in milliseconds") \ |
duke@435 | 1635 | \ |
duke@435 | 1636 | develop(bool, CMSTraceIncrementalMode, false, \ |
duke@435 | 1637 | "Trace CMS incremental mode") \ |
duke@435 | 1638 | \ |
duke@435 | 1639 | develop(bool, CMSTraceIncrementalPacing, false, \ |
duke@435 | 1640 | "Trace CMS incremental mode pacing computation") \ |
duke@435 | 1641 | \ |
duke@435 | 1642 | develop(bool, CMSTraceThreadState, false, \ |
duke@435 | 1643 | "Trace the CMS thread state (enable the trace_state() method)") \ |
duke@435 | 1644 | \ |
duke@435 | 1645 | product(bool, CMSClassUnloadingEnabled, false, \ |
duke@435 | 1646 | "Whether class unloading enabled when using CMS GC") \ |
duke@435 | 1647 | \ |
ysr@529 | 1648 | product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
ysr@529 | 1649 | "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
ysr@529 | 1650 | " for which classes may not be unloaded") \ |
ysr@529 | 1651 | \ |
duke@435 | 1652 | product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
duke@435 | 1653 | "Compact when asked to collect CMS gen with clear_all_soft_refs") \ |
duke@435 | 1654 | \ |
duke@435 | 1655 | product(bool, UseCMSCompactAtFullCollection, true, \ |
duke@435 | 1656 | "Use mark sweep compact at full collections") \ |
duke@435 | 1657 | \ |
duke@435 | 1658 | product(uintx, CMSFullGCsBeforeCompaction, 0, \ |
duke@435 | 1659 | "Number of CMS full collection done before compaction if > 0") \ |
duke@435 | 1660 | \ |
duke@435 | 1661 | develop(intx, CMSDictionaryChoice, 0, \ |
duke@435 | 1662 | "Use BinaryTreeDictionary as default in the CMS generation") \ |
duke@435 | 1663 | \ |
duke@435 | 1664 | product(uintx, CMSIndexedFreeListReplenish, 4, \ |
ysr@2132 | 1665 | "Replenish an indexed free list with this number of chunks") \ |
duke@435 | 1666 | \ |
ysr@1580 | 1667 | product(bool, CMSReplenishIntermediate, true, \ |
ysr@1580 | 1668 | "Replenish all intermediate free-list caches") \ |
ysr@1580 | 1669 | \ |
ysr@1580 | 1670 | product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
ysr@2132 | 1671 | "When satisfying batched demand, split blocks from the " \ |
ysr@1580 | 1672 | "IndexedFreeList whose size is a multiple of requested size") \ |
ysr@1580 | 1673 | \ |
duke@435 | 1674 | product(bool, CMSLoopWarn, false, \ |
duke@435 | 1675 | "Warn in case of excessive CMS looping") \ |
duke@435 | 1676 | \ |
duke@435 | 1677 | develop(bool, CMSOverflowEarlyRestoration, false, \ |
duke@435 | 1678 | "Whether preserved marks should be restored early") \ |
duke@435 | 1679 | \ |
jmasa@1719 | 1680 | product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
jmasa@1719 | 1681 | "Size of marking stack") \ |
jmasa@1719 | 1682 | \ |
jmasa@1719 | 1683 | product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ |
jmasa@1719 | 1684 | "Max size of marking stack") \ |
duke@435 | 1685 | \ |
duke@435 | 1686 | notproduct(bool, CMSMarkStackOverflowALot, false, \ |
duke@435 | 1687 | "Whether we should simulate frequent marking stack / work queue" \ |
duke@435 | 1688 | " overflow") \ |
duke@435 | 1689 | \ |
ysr@969 | 1690 | notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
ysr@969 | 1691 | "An `interval' counter that determines how frequently" \ |
duke@435 | 1692 | " we simulate overflow; a smaller number increases frequency") \ |
duke@435 | 1693 | \ |
duke@435 | 1694 | product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ |
duke@435 | 1695 | "(Temporary, subject to experimentation)" \ |
duke@435 | 1696 | "Maximum number of abortable preclean iterations, if > 0") \ |
duke@435 | 1697 | \ |
duke@435 | 1698 | product(intx, CMSMaxAbortablePrecleanTime, 5000, \ |
duke@435 | 1699 | "(Temporary, subject to experimentation)" \ |
duke@435 | 1700 | "Maximum time in abortable preclean in ms") \ |
duke@435 | 1701 | \ |
duke@435 | 1702 | product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ |
duke@435 | 1703 | "(Temporary, subject to experimentation)" \ |
duke@435 | 1704 | "Nominal minimum work per abortable preclean iteration") \ |
duke@435 | 1705 | \ |
ysr@2242 | 1706 | manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
duke@435 | 1707 | "(Temporary, subject to experimentation)" \ |
duke@435 | 1708 | " Time that we sleep between iterations when not given" \ |
duke@435 | 1709 | " enough work per iteration") \ |
duke@435 | 1710 | \ |
duke@435 | 1711 | product(uintx, CMSRescanMultiple, 32, \ |
duke@435 | 1712 | "Size (in cards) of CMS parallel rescan task") \ |
duke@435 | 1713 | \ |
duke@435 | 1714 | product(uintx, CMSConcMarkMultiple, 32, \ |
duke@435 | 1715 | "Size (in cards) of CMS concurrent MT marking task") \ |
duke@435 | 1716 | \ |
duke@435 | 1717 | product(uintx, CMSRevisitStackSize, 1*M, \ |
duke@435 | 1718 | "Size of CMS KlassKlass revisit stack") \ |
duke@435 | 1719 | \ |
duke@435 | 1720 | product(bool, CMSAbortSemantics, false, \ |
duke@435 | 1721 | "Whether abort-on-overflow semantics is implemented") \ |
duke@435 | 1722 | \ |
duke@435 | 1723 | product(bool, CMSParallelRemarkEnabled, true, \ |
duke@435 | 1724 | "Whether parallel remark enabled (only if ParNewGC)") \ |
duke@435 | 1725 | \ |
duke@435 | 1726 | product(bool, CMSParallelSurvivorRemarkEnabled, true, \ |
duke@435 | 1727 | "Whether parallel remark of survivor space" \ |
duke@435 | 1728 | " enabled (effective only if CMSParallelRemarkEnabled)") \ |
duke@435 | 1729 | \ |
duke@435 | 1730 | product(bool, CMSPLABRecordAlways, true, \ |
duke@435 | 1731 | "Whether to always record survivor space PLAB bdries" \ |
duke@435 | 1732 | " (effective only if CMSParallelSurvivorRemarkEnabled)") \ |
duke@435 | 1733 | \ |
duke@435 | 1734 | product(bool, CMSConcurrentMTEnabled, true, \ |
duke@435 | 1735 | "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ |
duke@435 | 1736 | \ |
duke@435 | 1737 | product(bool, CMSPermGenPrecleaningEnabled, true, \ |
duke@435 | 1738 | "Whether concurrent precleaning enabled in perm gen" \ |
duke@435 | 1739 | " (effective only when CMSPrecleaningEnabled is true)") \ |
duke@435 | 1740 | \ |
duke@435 | 1741 | product(bool, CMSPrecleaningEnabled, true, \ |
duke@435 | 1742 | "Whether concurrent precleaning enabled") \ |
duke@435 | 1743 | \ |
duke@435 | 1744 | product(uintx, CMSPrecleanIter, 3, \ |
duke@435 | 1745 | "Maximum number of precleaning iteration passes") \ |
duke@435 | 1746 | \ |
duke@435 | 1747 | product(uintx, CMSPrecleanNumerator, 2, \ |
duke@435 | 1748 | "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ |
duke@435 | 1749 | " ratio") \ |
duke@435 | 1750 | \ |
duke@435 | 1751 | product(uintx, CMSPrecleanDenominator, 3, \ |
duke@435 | 1752 | "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ |
duke@435 | 1753 | " ratio") \ |
duke@435 | 1754 | \ |
ysr@887 | 1755 | product(bool, CMSPrecleanRefLists1, true, \ |
duke@435 | 1756 | "Preclean ref lists during (initial) preclean phase") \ |
duke@435 | 1757 | \ |
duke@435 | 1758 | product(bool, CMSPrecleanRefLists2, false, \ |
duke@435 | 1759 | "Preclean ref lists during abortable preclean phase") \ |
duke@435 | 1760 | \ |
duke@435 | 1761 | product(bool, CMSPrecleanSurvivors1, false, \ |
duke@435 | 1762 | "Preclean survivors during (initial) preclean phase") \ |
duke@435 | 1763 | \ |
duke@435 | 1764 | product(bool, CMSPrecleanSurvivors2, true, \ |
duke@435 | 1765 | "Preclean survivors during abortable preclean phase") \ |
duke@435 | 1766 | \ |
duke@435 | 1767 | product(uintx, CMSPrecleanThreshold, 1000, \ |
duke@435 | 1768 | "Don't re-iterate if #dirty cards less than this") \ |
duke@435 | 1769 | \ |
duke@435 | 1770 | product(bool, CMSCleanOnEnter, true, \ |
duke@435 | 1771 | "Clean-on-enter optimization for reducing number of dirty cards") \ |
duke@435 | 1772 | \ |
duke@435 | 1773 | product(uintx, CMSRemarkVerifyVariant, 1, \ |
duke@435 | 1774 | "Choose variant (1,2) of verification following remark") \ |
duke@435 | 1775 | \ |
duke@435 | 1776 | product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ |
duke@435 | 1777 | "If Eden used is below this value, don't try to schedule remark") \ |
duke@435 | 1778 | \ |
duke@435 | 1779 | product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ |
duke@435 | 1780 | "The Eden occupancy % at which to try and schedule remark pause") \ |
duke@435 | 1781 | \ |
duke@435 | 1782 | product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ |
duke@435 | 1783 | "Start sampling Eden top at least before yg occupancy reaches" \ |
duke@435 | 1784 | " 1/<ratio> of the size at which we plan to schedule remark") \ |
duke@435 | 1785 | \ |
duke@435 | 1786 | product(uintx, CMSSamplingGrain, 16*K, \ |
duke@435 | 1787 | "The minimum distance between eden samples for CMS (see above)") \ |
duke@435 | 1788 | \ |
duke@435 | 1789 | product(bool, CMSScavengeBeforeRemark, false, \ |
duke@435 | 1790 | "Attempt scavenge before the CMS remark step") \ |
duke@435 | 1791 | \ |
duke@435 | 1792 | develop(bool, CMSTraceSweeper, false, \ |
duke@435 | 1793 | "Trace some actions of the CMS sweeper") \ |
duke@435 | 1794 | \ |
duke@435 | 1795 | product(uintx, CMSWorkQueueDrainThreshold, 10, \ |
duke@435 | 1796 | "Don't drain below this size per parallel worker/thief") \ |
duke@435 | 1797 | \ |
ysr@2242 | 1798 | manageable(intx, CMSWaitDuration, 2000, \ |
duke@435 | 1799 | "Time in milliseconds that CMS thread waits for young GC") \ |
duke@435 | 1800 | \ |
duke@435 | 1801 | product(bool, CMSYield, true, \ |
duke@435 | 1802 | "Yield between steps of concurrent mark & sweep") \ |
duke@435 | 1803 | \ |
duke@435 | 1804 | product(uintx, CMSBitMapYieldQuantum, 10*M, \ |
duke@435 | 1805 | "Bitmap operations should process at most this many bits" \ |
duke@435 | 1806 | "between yields") \ |
duke@435 | 1807 | \ |
ysr@1580 | 1808 | product(bool, CMSDumpAtPromotionFailure, false, \ |
ysr@1580 | 1809 | "Dump useful information about the state of the CMS old " \ |
ysr@1580 | 1810 | " generation upon a promotion failure.") \ |
ysr@1580 | 1811 | \ |
ysr@1580 | 1812 | product(bool, CMSPrintChunksInDump, false, \ |
ysr@1580 | 1813 | "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
ysr@1580 | 1814 | " more detailed information about the free chunks.") \ |
ysr@1580 | 1815 | \ |
ysr@1580 | 1816 | product(bool, CMSPrintObjectsInDump, false, \ |
ysr@1580 | 1817 | "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
ysr@1580 | 1818 | " more detailed information about the allocated objects.") \ |
ysr@1580 | 1819 | \ |
duke@435 | 1820 | diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
duke@435 | 1821 | "Verify that all refs across the FLS boundary " \ |
duke@435 | 1822 | " are to valid objects") \ |
duke@435 | 1823 | \ |
duke@435 | 1824 | diagnostic(bool, FLSVerifyLists, false, \ |
duke@435 | 1825 | "Do lots of (expensive) FreeListSpace verification") \ |
duke@435 | 1826 | \ |
duke@435 | 1827 | diagnostic(bool, FLSVerifyIndexTable, false, \ |
duke@435 | 1828 | "Do lots of (expensive) FLS index table verification") \ |
duke@435 | 1829 | \ |
duke@435 | 1830 | develop(bool, FLSVerifyDictionary, false, \ |
duke@435 | 1831 | "Do lots of (expensive) FLS dictionary verification") \ |
duke@435 | 1832 | \ |
duke@435 | 1833 | develop(bool, VerifyBlockOffsetArray, false, \ |
duke@435 | 1834 | "Do (expensive!) block offset array verification") \ |
duke@435 | 1835 | \ |
ysr@2071 | 1836 | product(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
duke@435 | 1837 | "Maintain _unallocated_block in BlockOffsetArray" \ |
duke@435 | 1838 | " (currently applicable only to CMS collector)") \ |
duke@435 | 1839 | \ |
duke@435 | 1840 | develop(bool, TraceCMSState, false, \ |
duke@435 | 1841 | "Trace the state of the CMS collection") \ |
duke@435 | 1842 | \ |
duke@435 | 1843 | product(intx, RefDiscoveryPolicy, 0, \ |
duke@435 | 1844 | "Whether reference-based(0) or referent-based(1)") \ |
duke@435 | 1845 | \ |
duke@435 | 1846 | product(bool, ParallelRefProcEnabled, false, \ |
duke@435 | 1847 | "Enable parallel reference processing whenever possible") \ |
duke@435 | 1848 | \ |
duke@435 | 1849 | product(bool, ParallelRefProcBalancingEnabled, true, \ |
duke@435 | 1850 | "Enable balancing of reference processing queues") \ |
duke@435 | 1851 | \ |
duke@435 | 1852 | product(intx, CMSTriggerRatio, 80, \ |
duke@435 | 1853 | "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
phh@1499 | 1854 | "allocated before a CMS collection cycle commences") \ |
duke@435 | 1855 | \ |
ysr@529 | 1856 | product(intx, CMSTriggerPermRatio, 80, \ |
phh@1499 | 1857 | "Percentage of MinHeapFreeRatio in the CMS perm generation that " \ |
phh@1499 | 1858 | "is allocated before a CMS collection cycle commences, that " \ |
phh@1499 | 1859 | "also collects the perm generation") \ |
ysr@529 | 1860 | \ |
ysr@529 | 1861 | product(uintx, CMSBootstrapOccupancy, 50, \ |
duke@435 | 1862 | "Percentage CMS generation occupancy at which to " \ |
phh@1499 | 1863 | "initiate CMS collection for bootstrapping collection stats") \ |
duke@435 | 1864 | \ |
duke@435 | 1865 | product(intx, CMSInitiatingOccupancyFraction, -1, \ |
duke@435 | 1866 | "Percentage CMS generation occupancy to start a CMS collection " \ |
phh@1499 | 1867 | "cycle. A negative value means that CMSTriggerRatio is used") \ |
ysr@529 | 1868 | \ |
tonyp@1718 | 1869 | product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
tonyp@1718 | 1870 | "Percentage of the (entire) heap occupancy to start a " \ |
tonyp@1718 | 1871 | "concurrent GC cycle. It us used by GCs that trigger a " \ |
tonyp@1718 | 1872 | "concurrent GC cycle based on the occupancy of the entire heap, " \ |
tonyp@1718 | 1873 | "not just one of the generations (e.g., G1). A value of 0 " \ |
tonyp@1718 | 1874 | "denotes 'do constant GC cycles'.") \ |
tonyp@1718 | 1875 | \ |
ysr@529 | 1876 | product(intx, CMSInitiatingPermOccupancyFraction, -1, \ |
phh@1499 | 1877 | "Percentage CMS perm generation occupancy to start a " \ |
phh@1499 | 1878 | "CMScollection cycle. A negative value means that " \ |
phh@1499 | 1879 | "CMSTriggerPermRatio is used") \ |
duke@435 | 1880 | \ |
duke@435 | 1881 | product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
duke@435 | 1882 | "Only use occupancy as a crierion for starting a CMS collection") \ |
duke@435 | 1883 | \ |
ysr@529 | 1884 | product(intx, CMSIsTooFullPercentage, 98, \ |
phh@1499 | 1885 | "An absolute ceiling above which CMS will always consider the " \ |
phh@1499 | 1886 | "perm gen ripe for collection") \ |
ysr@529 | 1887 | \ |
duke@435 | 1888 | develop(bool, CMSTestInFreeList, false, \ |
duke@435 | 1889 | "Check if the coalesced range is already in the " \ |
phh@1499 | 1890 | "free lists as claimed") \ |
duke@435 | 1891 | \ |
duke@435 | 1892 | notproduct(bool, CMSVerifyReturnedBytes, false, \ |
duke@435 | 1893 | "Check that all the garbage collected was returned to the " \ |
duke@435 | 1894 | "free lists.") \ |
duke@435 | 1895 | \ |
duke@435 | 1896 | notproduct(bool, ScavengeALot, false, \ |
duke@435 | 1897 | "Force scavenge at every Nth exit from the runtime system " \ |
duke@435 | 1898 | "(N=ScavengeALotInterval)") \ |
duke@435 | 1899 | \ |
duke@435 | 1900 | develop(bool, FullGCALot, false, \ |
duke@435 | 1901 | "Force full gc at every Nth exit from the runtime system " \ |
duke@435 | 1902 | "(N=FullGCALotInterval)") \ |
duke@435 | 1903 | \ |
duke@435 | 1904 | notproduct(bool, GCALotAtAllSafepoints, false, \ |
duke@435 | 1905 | "Enforce ScavengeALot/GCALot at all potential safepoints") \ |
duke@435 | 1906 | \ |
ysr@1580 | 1907 | product(bool, PrintPromotionFailure, false, \ |
ysr@1580 | 1908 | "Print additional diagnostic information following " \ |
ysr@1580 | 1909 | " promotion failure") \ |
ysr@1580 | 1910 | \ |
duke@435 | 1911 | notproduct(bool, PromotionFailureALot, false, \ |
duke@435 | 1912 | "Use promotion failure handling on every youngest generation " \ |
duke@435 | 1913 | "collection") \ |
duke@435 | 1914 | \ |
duke@435 | 1915 | develop(uintx, PromotionFailureALotCount, 1000, \ |
duke@435 | 1916 | "Number of promotion failures occurring at ParGCAllocBuffer" \ |
duke@435 | 1917 | "refill attempts (ParNew) or promotion attempts " \ |
duke@435 | 1918 | "(other young collectors) ") \ |
duke@435 | 1919 | \ |
duke@435 | 1920 | develop(uintx, PromotionFailureALotInterval, 5, \ |
duke@435 | 1921 | "Total collections between promotion failures alot") \ |
duke@435 | 1922 | \ |
ysr@2192 | 1923 | experimental(intx, WorkStealingSleepMillis, 1, \ |
duke@435 | 1924 | "Sleep time when sleep is used for yields") \ |
duke@435 | 1925 | \ |
ysr@2192 | 1926 | experimental(uintx, WorkStealingYieldsBeforeSleep, 1000, \ |
duke@435 | 1927 | "Number of yields before a sleep is done during workstealing") \ |
duke@435 | 1928 | \ |
ysr@2192 | 1929 | experimental(uintx, WorkStealingHardSpins, 4096, \ |
jmasa@981 | 1930 | "Number of iterations in a spin loop between checks on " \ |
jmasa@981 | 1931 | "time out of hard spin") \ |
jmasa@981 | 1932 | \ |
ysr@2192 | 1933 | experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
jmasa@981 | 1934 | "Ratio of hard spins to calls to yield") \ |
jmasa@981 | 1935 | \ |
ysr@969 | 1936 | product(uintx, PreserveMarkStackSize, 1024, \ |
phh@1499 | 1937 | "Size for stack used in promotion failure handling") \ |
duke@435 | 1938 | \ |
jcoomes@1746 | 1939 | develop(uintx, ObjArrayMarkingStride, 512, \ |
jcoomes@1746 | 1940 | "Number of ObjArray elements to push onto the marking stack" \ |
jcoomes@1746 | 1941 | "before pushing a continuation entry") \ |
jcoomes@1746 | 1942 | \ |
duke@435 | 1943 | product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
duke@435 | 1944 | \ |
duke@435 | 1945 | product_pd(bool, ResizeTLAB, \ |
duke@435 | 1946 | "Dynamically resize tlab size for threads") \ |
duke@435 | 1947 | \ |
duke@435 | 1948 | product(bool, ZeroTLAB, false, \ |
duke@435 | 1949 | "Zero out the newly created TLAB") \ |
duke@435 | 1950 | \ |
ysr@777 | 1951 | product(bool, FastTLABRefill, true, \ |
ysr@777 | 1952 | "Use fast TLAB refill code") \ |
ysr@777 | 1953 | \ |
duke@435 | 1954 | product(bool, PrintTLAB, false, \ |
duke@435 | 1955 | "Print various TLAB related information") \ |
duke@435 | 1956 | \ |
duke@435 | 1957 | product(bool, TLABStats, true, \ |
duke@435 | 1958 | "Print various TLAB related information") \ |
duke@435 | 1959 | \ |
ysr@1376 | 1960 | product(bool, PrintRevisitStats, false, \ |
ysr@1376 | 1961 | "Print revisit (klass and MDO) stack related information") \ |
ysr@1376 | 1962 | \ |
bobv@2508 | 1963 | EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
bobv@2508 | 1964 | "Enable LowMemoryProtection")) \ |
bobv@2508 | 1965 | \ |
duke@435 | 1966 | product_pd(bool, NeverActAsServerClassMachine, \ |
duke@435 | 1967 | "Never act like a server-class machine") \ |
duke@435 | 1968 | \ |
duke@435 | 1969 | product(bool, AlwaysActAsServerClassMachine, false, \ |
duke@435 | 1970 | "Always act like a server-class machine") \ |
duke@435 | 1971 | \ |
phh@1499 | 1972 | product_pd(uint64_t, MaxRAM, \ |
phh@1499 | 1973 | "Real memory size (in bytes) used to set maximum heap size") \ |
phh@1499 | 1974 | \ |
phh@1499 | 1975 | product(uintx, ErgoHeapSizeLimit, 0, \ |
phh@1499 | 1976 | "Maximum ergonomically set heap size (in bytes); zero means use " \ |
phh@1499 | 1977 | "MaxRAM / MaxRAMFraction") \ |
phh@1499 | 1978 | \ |
phh@1499 | 1979 | product(uintx, MaxRAMFraction, 4, \ |
phh@1499 | 1980 | "Maximum fraction (1/n) of real memory used for maximum heap " \ |
phh@1499 | 1981 | "size") \ |
duke@435 | 1982 | \ |
duke@435 | 1983 | product(uintx, DefaultMaxRAMFraction, 4, \ |
phh@1499 | 1984 | "Maximum fraction (1/n) of real memory used for maximum heap " \ |
phh@1499 | 1985 | "size; deprecated: to be renamed to MaxRAMFraction") \ |
phh@1499 | 1986 | \ |
phh@1499 | 1987 | product(uintx, MinRAMFraction, 2, \ |
phh@1499 | 1988 | "Minimum fraction (1/n) of real memory used for maxmimum heap " \ |
phh@1499 | 1989 | "size on systems with small physical memory size") \ |
phh@1499 | 1990 | \ |
phh@1499 | 1991 | product(uintx, InitialRAMFraction, 64, \ |
phh@1499 | 1992 | "Fraction (1/n) of real memory used for initial heap size") \ |
duke@435 | 1993 | \ |
duke@435 | 1994 | product(bool, UseAutoGCSelectPolicy, false, \ |
duke@435 | 1995 | "Use automatic collection selection policy") \ |
duke@435 | 1996 | \ |
duke@435 | 1997 | product(uintx, AutoGCSelectPauseMillis, 5000, \ |
duke@435 | 1998 | "Automatic GC selection pause threshhold in ms") \ |
duke@435 | 1999 | \ |
duke@435 | 2000 | product(bool, UseAdaptiveSizePolicy, true, \ |
duke@435 | 2001 | "Use adaptive generation sizing policies") \ |
duke@435 | 2002 | \ |
duke@435 | 2003 | product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ |
duke@435 | 2004 | "Use adaptive survivor sizing policies") \ |
duke@435 | 2005 | \ |
duke@435 | 2006 | product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ |
duke@435 | 2007 | "Use adaptive young-old sizing policies at minor collections") \ |
duke@435 | 2008 | \ |
duke@435 | 2009 | product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ |
duke@435 | 2010 | "Use adaptive young-old sizing policies at major collections") \ |
duke@435 | 2011 | \ |
duke@435 | 2012 | product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ |
duke@435 | 2013 | "Use statistics from System.GC for adaptive size policy") \ |
duke@435 | 2014 | \ |
duke@435 | 2015 | product(bool, UseAdaptiveGCBoundary, false, \ |
duke@435 | 2016 | "Allow young-old boundary to move") \ |
duke@435 | 2017 | \ |
duke@435 | 2018 | develop(bool, TraceAdaptiveGCBoundary, false, \ |
duke@435 | 2019 | "Trace young-old boundary moves") \ |
duke@435 | 2020 | \ |
duke@435 | 2021 | develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ |
duke@435 | 2022 | "Resize the virtual spaces of the young or old generations") \ |
duke@435 | 2023 | \ |
duke@435 | 2024 | product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ |
duke@435 | 2025 | "Policy for changeing generation size for throughput goals") \ |
duke@435 | 2026 | \ |
duke@435 | 2027 | product(uintx, AdaptiveSizePausePolicy, 0, \ |
duke@435 | 2028 | "Policy for changing generation size for pause goals") \ |
duke@435 | 2029 | \ |
duke@435 | 2030 | develop(bool, PSAdjustTenuredGenForMinorPause, false, \ |
duke@435 | 2031 | "Adjust tenured generation to achive a minor pause goal") \ |
duke@435 | 2032 | \ |
duke@435 | 2033 | develop(bool, PSAdjustYoungGenForMajorPause, false, \ |
duke@435 | 2034 | "Adjust young generation to achive a major pause goal") \ |
duke@435 | 2035 | \ |
duke@435 | 2036 | product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ |
duke@435 | 2037 | "Number of steps where heuristics is used before data is used") \ |
duke@435 | 2038 | \ |
duke@435 | 2039 | develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ |
duke@435 | 2040 | "Number of collections before the adaptive sizing is started") \ |
duke@435 | 2041 | \ |
duke@435 | 2042 | product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ |
phh@1499 | 2043 | "Collecton interval for printing information; zero => never") \ |
duke@435 | 2044 | \ |
duke@435 | 2045 | product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ |
duke@435 | 2046 | "Use adaptive minimum footprint as a goal") \ |
duke@435 | 2047 | \ |
duke@435 | 2048 | product(uintx, AdaptiveSizePolicyWeight, 10, \ |
duke@435 | 2049 | "Weight given to exponential resizing, between 0 and 100") \ |
duke@435 | 2050 | \ |
duke@435 | 2051 | product(uintx, AdaptiveTimeWeight, 25, \ |
duke@435 | 2052 | "Weight given to time in adaptive policy, between 0 and 100") \ |
duke@435 | 2053 | \ |
duke@435 | 2054 | product(uintx, PausePadding, 1, \ |
duke@435 | 2055 | "How much buffer to keep for pause time") \ |
duke@435 | 2056 | \ |
duke@435 | 2057 | product(uintx, PromotedPadding, 3, \ |
duke@435 | 2058 | "How much buffer to keep for promotion failure") \ |
duke@435 | 2059 | \ |
duke@435 | 2060 | product(uintx, SurvivorPadding, 3, \ |
duke@435 | 2061 | "How much buffer to keep for survivor overflow") \ |
duke@435 | 2062 | \ |
duke@435 | 2063 | product(uintx, AdaptivePermSizeWeight, 20, \ |
duke@435 | 2064 | "Weight for perm gen exponential resizing, between 0 and 100") \ |
duke@435 | 2065 | \ |
duke@435 | 2066 | product(uintx, PermGenPadding, 3, \ |
duke@435 | 2067 | "How much buffer to keep for perm gen sizing") \ |
duke@435 | 2068 | \ |
duke@435 | 2069 | product(uintx, ThresholdTolerance, 10, \ |
duke@435 | 2070 | "Allowed collection cost difference between generations") \ |
duke@435 | 2071 | \ |
duke@435 | 2072 | product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ |
phh@1499 | 2073 | "If collection costs are within margin, reduce both by full " \ |
phh@1499 | 2074 | "delta") \ |
duke@435 | 2075 | \ |
duke@435 | 2076 | product(uintx, YoungGenerationSizeIncrement, 20, \ |
duke@435 | 2077 | "Adaptive size percentage change in young generation") \ |
duke@435 | 2078 | \ |
duke@435 | 2079 | product(uintx, YoungGenerationSizeSupplement, 80, \ |
duke@435 | 2080 | "Supplement to YoungedGenerationSizeIncrement used at startup") \ |
duke@435 | 2081 | \ |
duke@435 | 2082 | product(uintx, YoungGenerationSizeSupplementDecay, 8, \ |
duke@435 | 2083 | "Decay factor to YoungedGenerationSizeSupplement") \ |
duke@435 | 2084 | \ |
duke@435 | 2085 | product(uintx, TenuredGenerationSizeIncrement, 20, \ |
duke@435 | 2086 | "Adaptive size percentage change in tenured generation") \ |
duke@435 | 2087 | \ |
duke@435 | 2088 | product(uintx, TenuredGenerationSizeSupplement, 80, \ |
duke@435 | 2089 | "Supplement to TenuredGenerationSizeIncrement used at startup") \ |
duke@435 | 2090 | \ |
duke@435 | 2091 | product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ |
duke@435 | 2092 | "Decay factor to TenuredGenerationSizeIncrement") \ |
duke@435 | 2093 | \ |
iveresov@2138 | 2094 | product(uintx, MaxGCPauseMillis, max_uintx, \ |
johnc@1186 | 2095 | "Adaptive size policy maximum GC pause time goal in msec, " \ |
johnc@1186 | 2096 | "or (G1 Only) the max. GC time per MMU time slice") \ |
johnc@1186 | 2097 | \ |
tonyp@1965 | 2098 | product(uintx, GCPauseIntervalMillis, 0, \ |
johnc@1186 | 2099 | "Time slice for MMU specification") \ |
duke@435 | 2100 | \ |
duke@435 | 2101 | product(uintx, MaxGCMinorPauseMillis, max_uintx, \ |
duke@435 | 2102 | "Adaptive size policy maximum GC minor pause time goal in msec") \ |
duke@435 | 2103 | \ |
duke@435 | 2104 | product(uintx, GCTimeRatio, 99, \ |
duke@435 | 2105 | "Adaptive size policy application time to GC time ratio") \ |
duke@435 | 2106 | \ |
duke@435 | 2107 | product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ |
duke@435 | 2108 | "Adaptive size scale down factor for shrinking") \ |
duke@435 | 2109 | \ |
duke@435 | 2110 | product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ |
duke@435 | 2111 | "Adaptive size decays the major cost for long major intervals") \ |
duke@435 | 2112 | \ |
duke@435 | 2113 | product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ |
duke@435 | 2114 | "Time scale over which major costs decay") \ |
duke@435 | 2115 | \ |
duke@435 | 2116 | product(uintx, MinSurvivorRatio, 3, \ |
duke@435 | 2117 | "Minimum ratio of young generation/survivor space size") \ |
duke@435 | 2118 | \ |
duke@435 | 2119 | product(uintx, InitialSurvivorRatio, 8, \ |
duke@435 | 2120 | "Initial ratio of eden/survivor space size") \ |
duke@435 | 2121 | \ |
duke@435 | 2122 | product(uintx, BaseFootPrintEstimate, 256*M, \ |
duke@435 | 2123 | "Estimate of footprint other than Java Heap") \ |
duke@435 | 2124 | \ |
duke@435 | 2125 | product(bool, UseGCOverheadLimit, true, \ |
duke@435 | 2126 | "Use policy to limit of proportion of time spent in GC " \ |
duke@435 | 2127 | "before an OutOfMemory error is thrown") \ |
duke@435 | 2128 | \ |
duke@435 | 2129 | product(uintx, GCTimeLimit, 98, \ |
duke@435 | 2130 | "Limit of proportion of time spent in GC before an OutOfMemory" \ |
duke@435 | 2131 | "error is thrown (used with GCHeapFreeLimit)") \ |
duke@435 | 2132 | \ |
duke@435 | 2133 | product(uintx, GCHeapFreeLimit, 2, \ |
duke@435 | 2134 | "Minimum percentage of free space after a full GC before an " \ |
duke@435 | 2135 | "OutOfMemoryError is thrown (used with GCTimeLimit)") \ |
duke@435 | 2136 | \ |
duke@435 | 2137 | develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ |
duke@435 | 2138 | "Number of consecutive collections before gc time limit fires") \ |
duke@435 | 2139 | \ |
duke@435 | 2140 | product(bool, PrintAdaptiveSizePolicy, false, \ |
duke@435 | 2141 | "Print information about AdaptiveSizePolicy") \ |
duke@435 | 2142 | \ |
duke@435 | 2143 | product(intx, PrefetchCopyIntervalInBytes, -1, \ |
duke@435 | 2144 | "How far ahead to prefetch destination area (<= 0 means off)") \ |
duke@435 | 2145 | \ |
duke@435 | 2146 | product(intx, PrefetchScanIntervalInBytes, -1, \ |
duke@435 | 2147 | "How far ahead to prefetch scan area (<= 0 means off)") \ |
duke@435 | 2148 | \ |
duke@435 | 2149 | product(intx, PrefetchFieldsAhead, -1, \ |
duke@435 | 2150 | "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ |
duke@435 | 2151 | \ |
duke@435 | 2152 | develop(bool, UsePrefetchQueue, true, \ |
duke@435 | 2153 | "Use the prefetch queue during PS promotion") \ |
duke@435 | 2154 | \ |
duke@435 | 2155 | diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
duke@435 | 2156 | "Verify system before exiting") \ |
duke@435 | 2157 | \ |
duke@435 | 2158 | diagnostic(bool, VerifyBeforeGC, false, \ |
duke@435 | 2159 | "Verify memory system before GC") \ |
duke@435 | 2160 | \ |
duke@435 | 2161 | diagnostic(bool, VerifyAfterGC, false, \ |
duke@435 | 2162 | "Verify memory system after GC") \ |
duke@435 | 2163 | \ |
duke@435 | 2164 | diagnostic(bool, VerifyDuringGC, false, \ |
duke@435 | 2165 | "Verify memory system during GC (between phases)") \ |
duke@435 | 2166 | \ |
tonyp@825 | 2167 | diagnostic(bool, GCParallelVerificationEnabled, true, \ |
tonyp@825 | 2168 | "Enable parallel memory system verification") \ |
tonyp@825 | 2169 | \ |
ysr@1601 | 2170 | diagnostic(bool, DeferInitialCardMark, false, \ |
ysr@1601 | 2171 | "When +ReduceInitialCardMarks, explicitly defer any that " \ |
ysr@1601 | 2172 | "may arise from new_pre_store_barrier") \ |
ysr@1601 | 2173 | \ |
duke@435 | 2174 | diagnostic(bool, VerifyRememberedSets, false, \ |
duke@435 | 2175 | "Verify GC remembered sets") \ |
duke@435 | 2176 | \ |
duke@435 | 2177 | diagnostic(bool, VerifyObjectStartArray, true, \ |
duke@435 | 2178 | "Verify GC object start array if verify before/after") \ |
duke@435 | 2179 | \ |
duke@435 | 2180 | product(bool, DisableExplicitGC, false, \ |
duke@435 | 2181 | "Tells whether calling System.gc() does a full GC") \ |
duke@435 | 2182 | \ |
duke@435 | 2183 | notproduct(bool, CheckMemoryInitialization, false, \ |
duke@435 | 2184 | "Checks memory initialization") \ |
duke@435 | 2185 | \ |
duke@435 | 2186 | product(bool, CollectGen0First, false, \ |
duke@435 | 2187 | "Collect youngest generation before each full GC") \ |
duke@435 | 2188 | \ |
duke@435 | 2189 | diagnostic(bool, BindCMSThreadToCPU, false, \ |
duke@435 | 2190 | "Bind CMS Thread to CPU if possible") \ |
duke@435 | 2191 | \ |
duke@435 | 2192 | diagnostic(uintx, CPUForCMSThread, 0, \ |
duke@435 | 2193 | "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ |
duke@435 | 2194 | \ |
duke@435 | 2195 | product(bool, BindGCTaskThreadsToCPUs, false, \ |
duke@435 | 2196 | "Bind GCTaskThreads to CPUs if possible") \ |
duke@435 | 2197 | \ |
duke@435 | 2198 | product(bool, UseGCTaskAffinity, false, \ |
duke@435 | 2199 | "Use worker affinity when asking for GCTasks") \ |
duke@435 | 2200 | \ |
duke@435 | 2201 | product(uintx, ProcessDistributionStride, 4, \ |
duke@435 | 2202 | "Stride through processors when distributing processes") \ |
duke@435 | 2203 | \ |
duke@435 | 2204 | product(uintx, CMSCoordinatorYieldSleepCount, 10, \ |
duke@435 | 2205 | "number of times the coordinator GC thread will sleep while " \ |
duke@435 | 2206 | "yielding before giving up and resuming GC") \ |
duke@435 | 2207 | \ |
duke@435 | 2208 | product(uintx, CMSYieldSleepCount, 0, \ |
duke@435 | 2209 | "number of times a GC thread (minus the coordinator) " \ |
duke@435 | 2210 | "will sleep while yielding before giving up and resuming GC") \ |
duke@435 | 2211 | \ |
duke@435 | 2212 | /* gc tracing */ \ |
duke@435 | 2213 | manageable(bool, PrintGC, false, \ |
duke@435 | 2214 | "Print message at garbage collect") \ |
duke@435 | 2215 | \ |
duke@435 | 2216 | manageable(bool, PrintGCDetails, false, \ |
duke@435 | 2217 | "Print more details at garbage collect") \ |
duke@435 | 2218 | \ |
duke@435 | 2219 | manageable(bool, PrintGCDateStamps, false, \ |
duke@435 | 2220 | "Print date stamps at garbage collect") \ |
duke@435 | 2221 | \ |
duke@435 | 2222 | manageable(bool, PrintGCTimeStamps, false, \ |
duke@435 | 2223 | "Print timestamps at garbage collect") \ |
duke@435 | 2224 | \ |
duke@435 | 2225 | product(bool, PrintGCTaskTimeStamps, false, \ |
duke@435 | 2226 | "Print timestamps for individual gc worker thread tasks") \ |
duke@435 | 2227 | \ |
duke@435 | 2228 | develop(intx, ConcGCYieldTimeout, 0, \ |
duke@435 | 2229 | "If non-zero, assert that GC threads yield within this # of ms.") \ |
duke@435 | 2230 | \ |
duke@435 | 2231 | notproduct(bool, TraceMarkSweep, false, \ |
duke@435 | 2232 | "Trace mark sweep") \ |
duke@435 | 2233 | \ |
duke@435 | 2234 | product(bool, PrintReferenceGC, false, \ |
duke@435 | 2235 | "Print times spent handling reference objects during GC " \ |
duke@435 | 2236 | " (enabled only when PrintGCDetails)") \ |
duke@435 | 2237 | \ |
duke@435 | 2238 | develop(bool, TraceReferenceGC, false, \ |
duke@435 | 2239 | "Trace handling of soft/weak/final/phantom references") \ |
duke@435 | 2240 | \ |
duke@435 | 2241 | develop(bool, TraceFinalizerRegistration, false, \ |
duke@435 | 2242 | "Trace registration of final references") \ |
duke@435 | 2243 | \ |
duke@435 | 2244 | notproduct(bool, TraceScavenge, false, \ |
duke@435 | 2245 | "Trace scavenge") \ |
duke@435 | 2246 | \ |
duke@435 | 2247 | product_rw(bool, TraceClassLoading, false, \ |
duke@435 | 2248 | "Trace all classes loaded") \ |
duke@435 | 2249 | \ |
duke@435 | 2250 | product(bool, TraceClassLoadingPreorder, false, \ |
duke@435 | 2251 | "Trace all classes loaded in order referenced (not loaded)") \ |
duke@435 | 2252 | \ |
duke@435 | 2253 | product_rw(bool, TraceClassUnloading, false, \ |
duke@435 | 2254 | "Trace unloading of classes") \ |
duke@435 | 2255 | \ |
duke@435 | 2256 | product_rw(bool, TraceLoaderConstraints, false, \ |
duke@435 | 2257 | "Trace loader constraints") \ |
duke@435 | 2258 | \ |
duke@435 | 2259 | product(bool, TraceGen0Time, false, \ |
duke@435 | 2260 | "Trace accumulated time for Gen 0 collection") \ |
duke@435 | 2261 | \ |
duke@435 | 2262 | product(bool, TraceGen1Time, false, \ |
duke@435 | 2263 | "Trace accumulated time for Gen 1 collection") \ |
duke@435 | 2264 | \ |
duke@435 | 2265 | product(bool, PrintTenuringDistribution, false, \ |
duke@435 | 2266 | "Print tenuring age information") \ |
duke@435 | 2267 | \ |
duke@435 | 2268 | product_rw(bool, PrintHeapAtGC, false, \ |
duke@435 | 2269 | "Print heap layout before and after each GC") \ |
duke@435 | 2270 | \ |
tonyp@1273 | 2271 | product_rw(bool, PrintHeapAtGCExtended, false, \ |
tonyp@1273 | 2272 | "Prints extended information about the layout of the heap " \ |
tonyp@1273 | 2273 | "when -XX:+PrintHeapAtGC is set") \ |
tonyp@1273 | 2274 | \ |
duke@435 | 2275 | product(bool, PrintHeapAtSIGBREAK, true, \ |
duke@435 | 2276 | "Print heap layout in response to SIGBREAK") \ |
duke@435 | 2277 | \ |
ysr@1050 | 2278 | manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
ysr@1050 | 2279 | "Print a class histogram before any major stop-world GC") \ |
ysr@1050 | 2280 | \ |
ysr@1050 | 2281 | manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
ysr@1050 | 2282 | "Print a class histogram after any major stop-world GC") \ |
ysr@1050 | 2283 | \ |
duke@435 | 2284 | manageable(bool, PrintClassHistogram, false, \ |
duke@435 | 2285 | "Print a histogram of class instances") \ |
duke@435 | 2286 | \ |
duke@435 | 2287 | develop(bool, TraceWorkGang, false, \ |
duke@435 | 2288 | "Trace activities of work gangs") \ |
duke@435 | 2289 | \ |
duke@435 | 2290 | product(bool, TraceParallelOldGCTasks, false, \ |
duke@435 | 2291 | "Trace multithreaded GC activity") \ |
duke@435 | 2292 | \ |
duke@435 | 2293 | develop(bool, TraceBlockOffsetTable, false, \ |
duke@435 | 2294 | "Print BlockOffsetTable maps") \ |
duke@435 | 2295 | \ |
duke@435 | 2296 | develop(bool, TraceCardTableModRefBS, false, \ |
duke@435 | 2297 | "Print CardTableModRefBS maps") \ |
duke@435 | 2298 | \ |
duke@435 | 2299 | develop(bool, TraceGCTaskManager, false, \ |
duke@435 | 2300 | "Trace actions of the GC task manager") \ |
duke@435 | 2301 | \ |
duke@435 | 2302 | develop(bool, TraceGCTaskQueue, false, \ |
duke@435 | 2303 | "Trace actions of the GC task queues") \ |
duke@435 | 2304 | \ |
duke@435 | 2305 | develop(bool, TraceGCTaskThread, false, \ |
duke@435 | 2306 | "Trace actions of the GC task threads") \ |
duke@435 | 2307 | \ |
duke@435 | 2308 | product(bool, PrintParallelOldGCPhaseTimes, false, \ |
duke@435 | 2309 | "Print the time taken by each parallel old gc phase." \ |
duke@435 | 2310 | "PrintGCDetails must also be enabled.") \ |
duke@435 | 2311 | \ |
duke@435 | 2312 | develop(bool, TraceParallelOldGCMarkingPhase, false, \ |
duke@435 | 2313 | "Trace parallel old gc marking phase") \ |
duke@435 | 2314 | \ |
duke@435 | 2315 | develop(bool, TraceParallelOldGCSummaryPhase, false, \ |
duke@435 | 2316 | "Trace parallel old gc summary phase") \ |
duke@435 | 2317 | \ |
duke@435 | 2318 | develop(bool, TraceParallelOldGCCompactionPhase, false, \ |
duke@435 | 2319 | "Trace parallel old gc compaction phase") \ |
duke@435 | 2320 | \ |
duke@435 | 2321 | develop(bool, TraceParallelOldGCDensePrefix, false, \ |
duke@435 | 2322 | "Trace parallel old gc dense prefix computation") \ |
duke@435 | 2323 | \ |
duke@435 | 2324 | develop(bool, IgnoreLibthreadGPFault, false, \ |
duke@435 | 2325 | "Suppress workaround for libthread GP fault") \ |
duke@435 | 2326 | \ |
apetrusenko@574 | 2327 | product(bool, PrintJNIGCStalls, false, \ |
apetrusenko@574 | 2328 | "Print diagnostic message when GC is stalled" \ |
apetrusenko@574 | 2329 | "by JNI critical section") \ |
apetrusenko@574 | 2330 | \ |
duke@435 | 2331 | /* JVMTI heap profiling */ \ |
duke@435 | 2332 | \ |
duke@435 | 2333 | diagnostic(bool, TraceJVMTIObjectTagging, false, \ |
duke@435 | 2334 | "Trace JVMTI object tagging calls") \ |
duke@435 | 2335 | \ |
duke@435 | 2336 | diagnostic(bool, VerifyBeforeIteration, false, \ |
duke@435 | 2337 | "Verify memory system before JVMTI iteration") \ |
duke@435 | 2338 | \ |
duke@435 | 2339 | /* compiler interface */ \ |
duke@435 | 2340 | \ |
duke@435 | 2341 | develop(bool, CIPrintCompilerName, false, \ |
duke@435 | 2342 | "when CIPrint is active, print the name of the active compiler") \ |
duke@435 | 2343 | \ |
duke@435 | 2344 | develop(bool, CIPrintCompileQueue, false, \ |
duke@435 | 2345 | "display the contents of the compile queue whenever a " \ |
duke@435 | 2346 | "compilation is enqueued") \ |
duke@435 | 2347 | \ |
duke@435 | 2348 | develop(bool, CIPrintRequests, false, \ |
duke@435 | 2349 | "display every request for compilation") \ |
duke@435 | 2350 | \ |
duke@435 | 2351 | product(bool, CITime, false, \ |
duke@435 | 2352 | "collect timing information for compilation") \ |
duke@435 | 2353 | \ |
duke@435 | 2354 | develop(bool, CITimeEach, false, \ |
duke@435 | 2355 | "display timing information after each successful compilation") \ |
duke@435 | 2356 | \ |
duke@435 | 2357 | develop(bool, CICountOSR, true, \ |
duke@435 | 2358 | "use a separate counter when assigning ids to osr compilations") \ |
duke@435 | 2359 | \ |
duke@435 | 2360 | develop(bool, CICompileNatives, true, \ |
duke@435 | 2361 | "compile native methods if supported by the compiler") \ |
duke@435 | 2362 | \ |
duke@435 | 2363 | develop_pd(bool, CICompileOSR, \ |
duke@435 | 2364 | "compile on stack replacement methods if supported by the " \ |
duke@435 | 2365 | "compiler") \ |
duke@435 | 2366 | \ |
duke@435 | 2367 | develop(bool, CIPrintMethodCodes, false, \ |
duke@435 | 2368 | "print method bytecodes of the compiled code") \ |
duke@435 | 2369 | \ |
duke@435 | 2370 | develop(bool, CIPrintTypeFlow, false, \ |
duke@435 | 2371 | "print the results of ciTypeFlow analysis") \ |
duke@435 | 2372 | \ |
duke@435 | 2373 | develop(bool, CITraceTypeFlow, false, \ |
duke@435 | 2374 | "detailed per-bytecode tracing of ciTypeFlow analysis") \ |
duke@435 | 2375 | \ |
duke@435 | 2376 | develop(intx, CICloneLoopTestLimit, 100, \ |
duke@435 | 2377 | "size limit for blocks heuristically cloned in ciTypeFlow") \ |
duke@435 | 2378 | \ |
duke@435 | 2379 | /* temp diagnostics */ \ |
duke@435 | 2380 | \ |
duke@435 | 2381 | diagnostic(bool, TraceRedundantCompiles, false, \ |
duke@435 | 2382 | "Have compile broker print when a request already in the queue is"\ |
duke@435 | 2383 | " requested again") \ |
duke@435 | 2384 | \ |
duke@435 | 2385 | diagnostic(bool, InitialCompileFast, false, \ |
duke@435 | 2386 | "Initial compile at CompLevel_fast_compile") \ |
duke@435 | 2387 | \ |
duke@435 | 2388 | diagnostic(bool, InitialCompileReallyFast, false, \ |
duke@435 | 2389 | "Initial compile at CompLevel_really_fast_compile (no profile)") \ |
duke@435 | 2390 | \ |
duke@435 | 2391 | diagnostic(bool, FullProfileOnReInterpret, true, \ |
duke@435 | 2392 | "On re-interpret unc-trap compile next at CompLevel_fast_compile")\ |
duke@435 | 2393 | \ |
duke@435 | 2394 | /* compiler */ \ |
duke@435 | 2395 | \ |
duke@435 | 2396 | product(intx, CICompilerCount, CI_COMPILER_COUNT, \ |
duke@435 | 2397 | "Number of compiler threads to run") \ |
duke@435 | 2398 | \ |
duke@435 | 2399 | product(intx, CompilationPolicyChoice, 0, \ |
duke@435 | 2400 | "which compilation policy (0/1)") \ |
duke@435 | 2401 | \ |
duke@435 | 2402 | develop(bool, UseStackBanging, true, \ |
duke@435 | 2403 | "use stack banging for stack overflow checks (required for " \ |
duke@435 | 2404 | "proper StackOverflow handling; disable only to measure cost " \ |
duke@435 | 2405 | "of stackbanging)") \ |
duke@435 | 2406 | \ |
duke@435 | 2407 | develop(bool, Use24BitFPMode, true, \ |
duke@435 | 2408 | "Set 24-bit FPU mode on a per-compile basis ") \ |
duke@435 | 2409 | \ |
duke@435 | 2410 | develop(bool, Use24BitFP, true, \ |
duke@435 | 2411 | "use FP instructions that produce 24-bit precise results") \ |
duke@435 | 2412 | \ |
duke@435 | 2413 | develop(bool, UseStrictFP, true, \ |
duke@435 | 2414 | "use strict fp if modifier strictfp is set") \ |
duke@435 | 2415 | \ |
duke@435 | 2416 | develop(bool, GenerateSynchronizationCode, true, \ |
duke@435 | 2417 | "generate locking/unlocking code for synchronized methods and " \ |
duke@435 | 2418 | "monitors") \ |
duke@435 | 2419 | \ |
duke@435 | 2420 | develop(bool, GenerateCompilerNullChecks, true, \ |
duke@435 | 2421 | "Generate explicit null checks for loads/stores/calls") \ |
duke@435 | 2422 | \ |
duke@435 | 2423 | develop(bool, GenerateRangeChecks, true, \ |
duke@435 | 2424 | "Generate range checks for array accesses") \ |
duke@435 | 2425 | \ |
duke@435 | 2426 | develop_pd(bool, ImplicitNullChecks, \ |
duke@435 | 2427 | "generate code for implicit null checks") \ |
duke@435 | 2428 | \ |
duke@435 | 2429 | product(bool, PrintSafepointStatistics, false, \ |
duke@435 | 2430 | "print statistics about safepoint synchronization") \ |
duke@435 | 2431 | \ |
duke@435 | 2432 | product(intx, PrintSafepointStatisticsCount, 300, \ |
duke@435 | 2433 | "total number of safepoint statistics collected " \ |
duke@435 | 2434 | "before printing them out") \ |
duke@435 | 2435 | \ |
duke@435 | 2436 | product(intx, PrintSafepointStatisticsTimeout, -1, \ |
duke@435 | 2437 | "print safepoint statistics only when safepoint takes" \ |
duke@435 | 2438 | " more than PrintSafepointSatisticsTimeout in millis") \ |
duke@435 | 2439 | \ |
xlu@1756 | 2440 | product(bool, TraceSafepointCleanupTime, false, \ |
xlu@1756 | 2441 | "print the break down of clean up tasks performed during" \ |
xlu@1756 | 2442 | " safepoint") \ |
xlu@1756 | 2443 | \ |
duke@435 | 2444 | develop(bool, InlineAccessors, true, \ |
duke@435 | 2445 | "inline accessor methods (get/set)") \ |
duke@435 | 2446 | \ |
duke@435 | 2447 | product(bool, Inline, true, \ |
duke@435 | 2448 | "enable inlining") \ |
duke@435 | 2449 | \ |
duke@435 | 2450 | product(bool, ClipInlining, true, \ |
duke@435 | 2451 | "clip inlining if aggregate method exceeds DesiredMethodLimit") \ |
duke@435 | 2452 | \ |
duke@435 | 2453 | develop(bool, UseCHA, true, \ |
duke@435 | 2454 | "enable CHA") \ |
duke@435 | 2455 | \ |
duke@435 | 2456 | product(bool, UseTypeProfile, true, \ |
duke@435 | 2457 | "Check interpreter profile for historically monomorphic calls") \ |
duke@435 | 2458 | \ |
duke@435 | 2459 | product(intx, TypeProfileMajorReceiverPercent, 90, \ |
duke@435 | 2460 | "% of major receiver type to all profiled receivers") \ |
duke@435 | 2461 | \ |
duke@435 | 2462 | notproduct(bool, TimeCompiler, false, \ |
duke@435 | 2463 | "time the compiler") \ |
duke@435 | 2464 | \ |
duke@435 | 2465 | notproduct(bool, TimeCompiler2, false, \ |
duke@435 | 2466 | "detailed time the compiler (requires +TimeCompiler)") \ |
duke@435 | 2467 | \ |
duke@435 | 2468 | diagnostic(bool, PrintInlining, false, \ |
duke@435 | 2469 | "prints inlining optimizations") \ |
duke@435 | 2470 | \ |
duke@435 | 2471 | diagnostic(bool, PrintIntrinsics, false, \ |
duke@435 | 2472 | "prints attempted and successful inlining of intrinsics") \ |
duke@435 | 2473 | \ |
twisti@1210 | 2474 | product(bool, UseCountLeadingZerosInstruction, false, \ |
twisti@1210 | 2475 | "Use count leading zeros instruction") \ |
twisti@1210 | 2476 | \ |
twisti@1078 | 2477 | product(bool, UsePopCountInstruction, false, \ |
twisti@1078 | 2478 | "Use population count instruction") \ |
twisti@1078 | 2479 | \ |
duke@435 | 2480 | diagnostic(ccstrlist, DisableIntrinsic, "", \ |
duke@435 | 2481 | "do not expand intrinsics whose (internal) names appear here") \ |
duke@435 | 2482 | \ |
duke@435 | 2483 | develop(bool, StressReflectiveCode, false, \ |
duke@435 | 2484 | "Use inexact types at allocations, etc., to test reflection") \ |
duke@435 | 2485 | \ |
duke@435 | 2486 | develop(bool, EagerInitialization, false, \ |
duke@435 | 2487 | "Eagerly initialize classes if possible") \ |
duke@435 | 2488 | \ |
duke@435 | 2489 | develop(bool, TraceMethodReplacement, false, \ |
duke@435 | 2490 | "Print when methods are replaced do to recompilation") \ |
duke@435 | 2491 | \ |
duke@435 | 2492 | develop(bool, PrintMethodFlushing, false, \ |
duke@435 | 2493 | "print the nmethods being flushed") \ |
duke@435 | 2494 | \ |
duke@435 | 2495 | notproduct(bool, LogMultipleMutexLocking, false, \ |
duke@435 | 2496 | "log locking and unlocking of mutexes (only if multiple locks " \ |
duke@435 | 2497 | "are held)") \ |
duke@435 | 2498 | \ |
duke@435 | 2499 | develop(bool, UseRelocIndex, false, \ |
duke@435 | 2500 | "use an index to speed random access to relocations") \ |
duke@435 | 2501 | \ |
duke@435 | 2502 | develop(bool, StressCodeBuffers, false, \ |
duke@435 | 2503 | "Exercise code buffer expansion and other rare state changes") \ |
duke@435 | 2504 | \ |
duke@435 | 2505 | diagnostic(bool, DebugNonSafepoints, trueInDebug, \ |
duke@435 | 2506 | "Generate extra debugging info for non-safepoints in nmethods") \ |
duke@435 | 2507 | \ |
duke@435 | 2508 | diagnostic(bool, DebugInlinedCalls, true, \ |
duke@435 | 2509 | "If false, restricts profiled locations to the root method only") \ |
duke@435 | 2510 | \ |
duke@435 | 2511 | product(bool, PrintVMOptions, trueInDebug, \ |
kvn@1585 | 2512 | "Print flags that appeared on the command line") \ |
duke@435 | 2513 | \ |
kvn@999 | 2514 | product(bool, IgnoreUnrecognizedVMOptions, false, \ |
kvn@999 | 2515 | "Ignore unrecognized VM options") \ |
kvn@999 | 2516 | \ |
kvn@1585 | 2517 | product(bool, PrintCommandLineFlags, false, \ |
kvn@1585 | 2518 | "Print flags specified on command line or set by ergonomics") \ |
kvn@1585 | 2519 | \ |
kvn@1585 | 2520 | product(bool, PrintFlagsInitial, false, \ |
kvn@1585 | 2521 | "Print all VM flags before argument processing and exit VM") \ |
kvn@1585 | 2522 | \ |
kvn@1585 | 2523 | product(bool, PrintFlagsFinal, false, \ |
kvn@1585 | 2524 | "Print all VM flags after argument and ergonomic processing") \ |
kvn@1585 | 2525 | \ |
ikrylov@2123 | 2526 | notproduct(bool, PrintFlagsWithComments, false, \ |
ikrylov@2123 | 2527 | "Print all VM flags with default values and descriptions and exit")\ |
ikrylov@2123 | 2528 | \ |
duke@435 | 2529 | diagnostic(bool, SerializeVMOutput, true, \ |
duke@435 | 2530 | "Use a mutex to serialize output to tty and hotspot.log") \ |
duke@435 | 2531 | \ |
duke@435 | 2532 | diagnostic(bool, DisplayVMOutput, true, \ |
duke@435 | 2533 | "Display all VM output on the tty, independently of LogVMOutput") \ |
duke@435 | 2534 | \ |
duke@435 | 2535 | diagnostic(bool, LogVMOutput, trueInDebug, \ |
duke@435 | 2536 | "Save VM output to hotspot.log, or to LogFile") \ |
duke@435 | 2537 | \ |
duke@435 | 2538 | diagnostic(ccstr, LogFile, NULL, \ |
duke@435 | 2539 | "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ |
duke@435 | 2540 | \ |
duke@435 | 2541 | product(ccstr, ErrorFile, NULL, \ |
duke@435 | 2542 | "If an error occurs, save the error data to this file " \ |
duke@435 | 2543 | "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ |
duke@435 | 2544 | \ |
duke@435 | 2545 | product(bool, DisplayVMOutputToStderr, false, \ |
duke@435 | 2546 | "If DisplayVMOutput is true, display all VM output to stderr") \ |
duke@435 | 2547 | \ |
duke@435 | 2548 | product(bool, DisplayVMOutputToStdout, false, \ |
duke@435 | 2549 | "If DisplayVMOutput is true, display all VM output to stdout") \ |
duke@435 | 2550 | \ |
duke@435 | 2551 | product(bool, UseHeavyMonitors, false, \ |
duke@435 | 2552 | "use heavyweight instead of lightweight Java monitors") \ |
duke@435 | 2553 | \ |
duke@435 | 2554 | notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
duke@435 | 2555 | "print histogram of the symbol table") \ |
duke@435 | 2556 | \ |
duke@435 | 2557 | notproduct(bool, ExitVMOnVerifyError, false, \ |
duke@435 | 2558 | "standard exit from VM if bytecode verify error " \ |
duke@435 | 2559 | "(only in debug mode)") \ |
duke@435 | 2560 | \ |
duke@435 | 2561 | notproduct(ccstr, AbortVMOnException, NULL, \ |
duke@435 | 2562 | "Call fatal if this exception is thrown. Example: " \ |
duke@435 | 2563 | "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ |
duke@435 | 2564 | \ |
kvn@2039 | 2565 | notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
kvn@2039 | 2566 | "Call fatal if the exception pointed by AbortVMOnException " \ |
kvn@2039 | 2567 | "has this message.") \ |
kvn@2039 | 2568 | \ |
duke@435 | 2569 | develop(bool, DebugVtables, false, \ |
duke@435 | 2570 | "add debugging code to vtable dispatch") \ |
duke@435 | 2571 | \ |
duke@435 | 2572 | develop(bool, PrintVtables, false, \ |
duke@435 | 2573 | "print vtables when printing klass") \ |
duke@435 | 2574 | \ |
duke@435 | 2575 | notproduct(bool, PrintVtableStats, false, \ |
duke@435 | 2576 | "print vtables stats at end of run") \ |
duke@435 | 2577 | \ |
duke@435 | 2578 | develop(bool, TraceCreateZombies, false, \ |
duke@435 | 2579 | "trace creation of zombie nmethods") \ |
duke@435 | 2580 | \ |
duke@435 | 2581 | notproduct(bool, IgnoreLockingAssertions, false, \ |
duke@435 | 2582 | "disable locking assertions (for speed)") \ |
duke@435 | 2583 | \ |
duke@435 | 2584 | notproduct(bool, VerifyLoopOptimizations, false, \ |
duke@435 | 2585 | "verify major loop optimizations") \ |
duke@435 | 2586 | \ |
duke@435 | 2587 | product(bool, RangeCheckElimination, true, \ |
duke@435 | 2588 | "Split loop iterations to eliminate range checks") \ |
duke@435 | 2589 | \ |
duke@435 | 2590 | develop_pd(bool, UncommonNullCast, \ |
duke@435 | 2591 | "track occurrences of null in casts; adjust compiler tactics") \ |
duke@435 | 2592 | \ |
duke@435 | 2593 | develop(bool, TypeProfileCasts, true, \ |
duke@435 | 2594 | "treat casts like calls for purposes of type profiling") \ |
duke@435 | 2595 | \ |
duke@435 | 2596 | develop(bool, MonomorphicArrayCheck, true, \ |
duke@435 | 2597 | "Uncommon-trap array store checks that require full type check") \ |
duke@435 | 2598 | \ |
jrose@2101 | 2599 | diagnostic(bool, ProfileDynamicTypes, true, \ |
jrose@2101 | 2600 | "do extra type profiling and use it more aggressively") \ |
jrose@2101 | 2601 | \ |
duke@435 | 2602 | develop(bool, DelayCompilationDuringStartup, true, \ |
duke@435 | 2603 | "Delay invoking the compiler until main application class is " \ |
duke@435 | 2604 | "loaded") \ |
duke@435 | 2605 | \ |
duke@435 | 2606 | develop(bool, CompileTheWorld, false, \ |
duke@435 | 2607 | "Compile all methods in all classes in bootstrap class path " \ |
duke@435 | 2608 | "(stress test)") \ |
duke@435 | 2609 | \ |
duke@435 | 2610 | develop(bool, CompileTheWorldPreloadClasses, true, \ |
duke@435 | 2611 | "Preload all classes used by a class before start loading") \ |
duke@435 | 2612 | \ |
kvn@1623 | 2613 | notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
kvn@1623 | 2614 | "Force a safepoint every n compiles so sweeper can keep up") \ |
kvn@1623 | 2615 | \ |
duke@435 | 2616 | develop(bool, TraceIterativeGVN, false, \ |
duke@435 | 2617 | "Print progress during Iterative Global Value Numbering") \ |
duke@435 | 2618 | \ |
duke@435 | 2619 | develop(bool, FillDelaySlots, true, \ |
duke@435 | 2620 | "Fill delay slots (on SPARC only)") \ |
duke@435 | 2621 | \ |
duke@435 | 2622 | develop(bool, VerifyIterativeGVN, false, \ |
duke@435 | 2623 | "Verify Def-Use modifications during sparse Iterative Global " \ |
duke@435 | 2624 | "Value Numbering") \ |
duke@435 | 2625 | \ |
duke@435 | 2626 | notproduct(bool, TracePhaseCCP, false, \ |
duke@435 | 2627 | "Print progress during Conditional Constant Propagation") \ |
duke@435 | 2628 | \ |
duke@435 | 2629 | develop(bool, TimeLivenessAnalysis, false, \ |
duke@435 | 2630 | "Time computation of bytecode liveness analysis") \ |
duke@435 | 2631 | \ |
duke@435 | 2632 | develop(bool, TraceLivenessGen, false, \ |
duke@435 | 2633 | "Trace the generation of liveness analysis information") \ |
duke@435 | 2634 | \ |
duke@435 | 2635 | notproduct(bool, TraceLivenessQuery, false, \ |
duke@435 | 2636 | "Trace queries of liveness analysis information") \ |
duke@435 | 2637 | \ |
duke@435 | 2638 | notproduct(bool, CollectIndexSetStatistics, false, \ |
duke@435 | 2639 | "Collect information about IndexSets") \ |
duke@435 | 2640 | \ |
duke@435 | 2641 | develop(bool, PrintDominators, false, \ |
duke@435 | 2642 | "Print out dominator trees for GVN") \ |
duke@435 | 2643 | \ |
duke@435 | 2644 | develop(bool, UseLoopSafepoints, true, \ |
duke@435 | 2645 | "Generate Safepoint nodes in every loop") \ |
duke@435 | 2646 | \ |
duke@435 | 2647 | notproduct(bool, TraceCISCSpill, false, \ |
duke@435 | 2648 | "Trace allocators use of cisc spillable instructions") \ |
duke@435 | 2649 | \ |
duke@435 | 2650 | notproduct(bool, TraceSpilling, false, \ |
duke@435 | 2651 | "Trace spilling") \ |
duke@435 | 2652 | \ |
duke@435 | 2653 | product(bool, SplitIfBlocks, true, \ |
duke@435 | 2654 | "Clone compares and control flow through merge points to fold " \ |
duke@435 | 2655 | "some branches") \ |
duke@435 | 2656 | \ |
duke@435 | 2657 | develop(intx, FastAllocateSizeLimit, 128*K, \ |
duke@435 | 2658 | /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ |
duke@435 | 2659 | "Inline allocations larger than this in doublewords must go slow")\ |
duke@435 | 2660 | \ |
duke@435 | 2661 | product(bool, AggressiveOpts, false, \ |
duke@435 | 2662 | "Enable aggressive optimizations - see arguments.cpp") \ |
duke@435 | 2663 | \ |
kvn@627 | 2664 | product(bool, UseStringCache, false, \ |
kvn@627 | 2665 | "Enable String cache capabilities on String.java") \ |
kvn@627 | 2666 | \ |
duke@435 | 2667 | /* statistics */ \ |
duke@435 | 2668 | develop(bool, CountCompiledCalls, false, \ |
duke@435 | 2669 | "counts method invocations") \ |
duke@435 | 2670 | \ |
duke@435 | 2671 | notproduct(bool, CountRuntimeCalls, false, \ |
duke@435 | 2672 | "counts VM runtime calls") \ |
duke@435 | 2673 | \ |
duke@435 | 2674 | develop(bool, CountJNICalls, false, \ |
duke@435 | 2675 | "counts jni method invocations") \ |
duke@435 | 2676 | \ |
duke@435 | 2677 | notproduct(bool, CountJVMCalls, false, \ |
duke@435 | 2678 | "counts jvm method invocations") \ |
duke@435 | 2679 | \ |
duke@435 | 2680 | notproduct(bool, CountRemovableExceptions, false, \ |
duke@435 | 2681 | "count exceptions that could be replaced by branches due to " \ |
duke@435 | 2682 | "inlining") \ |
duke@435 | 2683 | \ |
duke@435 | 2684 | notproduct(bool, ICMissHistogram, false, \ |
duke@435 | 2685 | "produce histogram of IC misses") \ |
duke@435 | 2686 | \ |
duke@435 | 2687 | notproduct(bool, PrintClassStatistics, false, \ |
duke@435 | 2688 | "prints class statistics at end of run") \ |
duke@435 | 2689 | \ |
duke@435 | 2690 | notproduct(bool, PrintMethodStatistics, false, \ |
duke@435 | 2691 | "prints method statistics at end of run") \ |
duke@435 | 2692 | \ |
duke@435 | 2693 | /* interpreter */ \ |
duke@435 | 2694 | develop(bool, ClearInterpreterLocals, false, \ |
duke@435 | 2695 | "Always clear local variables of interpreter activations upon " \ |
duke@435 | 2696 | "entry") \ |
duke@435 | 2697 | \ |
duke@435 | 2698 | product_pd(bool, RewriteBytecodes, \ |
duke@435 | 2699 | "Allow rewriting of bytecodes (bytecodes are not immutable)") \ |
duke@435 | 2700 | \ |
duke@435 | 2701 | product_pd(bool, RewriteFrequentPairs, \ |
duke@435 | 2702 | "Rewrite frequently used bytecode pairs into a single bytecode") \ |
duke@435 | 2703 | \ |
jrose@535 | 2704 | diagnostic(bool, PrintInterpreter, false, \ |
duke@435 | 2705 | "Prints the generated interpreter code") \ |
duke@435 | 2706 | \ |
duke@435 | 2707 | product(bool, UseInterpreter, true, \ |
duke@435 | 2708 | "Use interpreter for non-compiled methods") \ |
duke@435 | 2709 | \ |
duke@435 | 2710 | develop(bool, UseFastSignatureHandlers, true, \ |
duke@435 | 2711 | "Use fast signature handlers for native calls") \ |
duke@435 | 2712 | \ |
duke@435 | 2713 | develop(bool, UseV8InstrsOnly, false, \ |
duke@435 | 2714 | "Use SPARC-V8 Compliant instruction subset") \ |
duke@435 | 2715 | \ |
duke@435 | 2716 | product(bool, UseNiagaraInstrs, false, \ |
duke@435 | 2717 | "Use Niagara-efficient instruction subset") \ |
duke@435 | 2718 | \ |
duke@435 | 2719 | develop(bool, UseCASForSwap, false, \ |
duke@435 | 2720 | "Do not use swap instructions, but only CAS (in a loop) on SPARC")\ |
duke@435 | 2721 | \ |
duke@435 | 2722 | product(bool, UseLoopCounter, true, \ |
duke@435 | 2723 | "Increment invocation counter on backward branch") \ |
duke@435 | 2724 | \ |
duke@435 | 2725 | product(bool, UseFastEmptyMethods, true, \ |
duke@435 | 2726 | "Use fast method entry code for empty methods") \ |
duke@435 | 2727 | \ |
duke@435 | 2728 | product(bool, UseFastAccessorMethods, true, \ |
duke@435 | 2729 | "Use fast method entry code for accessor methods") \ |
duke@435 | 2730 | \ |
duke@435 | 2731 | product_pd(bool, UseOnStackReplacement, \ |
duke@435 | 2732 | "Use on stack replacement, calls runtime if invoc. counter " \ |
duke@435 | 2733 | "overflows in loop") \ |
duke@435 | 2734 | \ |
duke@435 | 2735 | notproduct(bool, TraceOnStackReplacement, false, \ |
duke@435 | 2736 | "Trace on stack replacement") \ |
duke@435 | 2737 | \ |
duke@435 | 2738 | develop(bool, PoisonOSREntry, true, \ |
duke@435 | 2739 | "Detect abnormal calls to OSR code") \ |
duke@435 | 2740 | \ |
duke@435 | 2741 | product_pd(bool, PreferInterpreterNativeStubs, \ |
duke@435 | 2742 | "Use always interpreter stubs for native methods invoked via " \ |
duke@435 | 2743 | "interpreter") \ |
duke@435 | 2744 | \ |
duke@435 | 2745 | develop(bool, CountBytecodes, false, \ |
duke@435 | 2746 | "Count number of bytecodes executed") \ |
duke@435 | 2747 | \ |
duke@435 | 2748 | develop(bool, PrintBytecodeHistogram, false, \ |
duke@435 | 2749 | "Print histogram of the executed bytecodes") \ |
duke@435 | 2750 | \ |
duke@435 | 2751 | develop(bool, PrintBytecodePairHistogram, false, \ |
duke@435 | 2752 | "Print histogram of the executed bytecode pairs") \ |
duke@435 | 2753 | \ |
jrose@535 | 2754 | diagnostic(bool, PrintSignatureHandlers, false, \ |
duke@435 | 2755 | "Print code generated for native method signature handlers") \ |
duke@435 | 2756 | \ |
duke@435 | 2757 | develop(bool, VerifyOops, false, \ |
duke@435 | 2758 | "Do plausibility checks for oops") \ |
duke@435 | 2759 | \ |
duke@435 | 2760 | develop(bool, CheckUnhandledOops, false, \ |
duke@435 | 2761 | "Check for unhandled oops in VM code") \ |
duke@435 | 2762 | \ |
duke@435 | 2763 | develop(bool, VerifyJNIFields, trueInDebug, \ |
duke@435 | 2764 | "Verify jfieldIDs for instance fields") \ |
duke@435 | 2765 | \ |
duke@435 | 2766 | notproduct(bool, VerifyJNIEnvThread, false, \ |
duke@435 | 2767 | "Verify JNIEnv.thread == Thread::current() when entering VM " \ |
duke@435 | 2768 | "from JNI") \ |
duke@435 | 2769 | \ |
duke@435 | 2770 | develop(bool, VerifyFPU, false, \ |
duke@435 | 2771 | "Verify FPU state (check for NaN's, etc.)") \ |
duke@435 | 2772 | \ |
duke@435 | 2773 | develop(bool, VerifyThread, false, \ |
duke@435 | 2774 | "Watch the thread register for corruption (SPARC only)") \ |
duke@435 | 2775 | \ |
duke@435 | 2776 | develop(bool, VerifyActivationFrameSize, false, \ |
duke@435 | 2777 | "Verify that activation frame didn't become smaller than its " \ |
duke@435 | 2778 | "minimal size") \ |
duke@435 | 2779 | \ |
duke@435 | 2780 | develop(bool, TraceFrequencyInlining, false, \ |
duke@435 | 2781 | "Trace frequency based inlining") \ |
duke@435 | 2782 | \ |
duke@435 | 2783 | notproduct(bool, TraceTypeProfile, false, \ |
duke@435 | 2784 | "Trace type profile") \ |
duke@435 | 2785 | \ |
duke@435 | 2786 | develop_pd(bool, InlineIntrinsics, \ |
duke@435 | 2787 | "Inline intrinsics that can be statically resolved") \ |
duke@435 | 2788 | \ |
duke@435 | 2789 | product_pd(bool, ProfileInterpreter, \ |
duke@435 | 2790 | "Profile at the bytecode level during interpretation") \ |
duke@435 | 2791 | \ |
duke@435 | 2792 | develop_pd(bool, ProfileTraps, \ |
duke@435 | 2793 | "Profile deoptimization traps at the bytecode level") \ |
duke@435 | 2794 | \ |
duke@435 | 2795 | product(intx, ProfileMaturityPercentage, 20, \ |
duke@435 | 2796 | "number of method invocations/branches (expressed as % of " \ |
duke@435 | 2797 | "CompileThreshold) before using the method's profile") \ |
duke@435 | 2798 | \ |
duke@435 | 2799 | develop(bool, PrintMethodData, false, \ |
duke@435 | 2800 | "Print the results of +ProfileInterpreter at end of run") \ |
duke@435 | 2801 | \ |
duke@435 | 2802 | develop(bool, VerifyDataPointer, trueInDebug, \ |
duke@435 | 2803 | "Verify the method data pointer during interpreter profiling") \ |
duke@435 | 2804 | \ |
duke@435 | 2805 | develop(bool, VerifyCompiledCode, false, \ |
duke@435 | 2806 | "Include miscellaneous runtime verifications in nmethod code; " \ |
phh@1499 | 2807 | "default off because it disturbs nmethod size heuristics") \ |
duke@435 | 2808 | \ |
minqi@1554 | 2809 | notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
minqi@1554 | 2810 | "Manually make GC thread crash then dump java stack trace; " \ |
minqi@1554 | 2811 | "Test only") \ |
duke@435 | 2812 | \ |
duke@435 | 2813 | /* compilation */ \ |
duke@435 | 2814 | product(bool, UseCompiler, true, \ |
duke@435 | 2815 | "use compilation") \ |
duke@435 | 2816 | \ |
duke@435 | 2817 | develop(bool, TraceCompilationPolicy, false, \ |
duke@435 | 2818 | "Trace compilation policy") \ |
duke@435 | 2819 | \ |
duke@435 | 2820 | develop(bool, TimeCompilationPolicy, false, \ |
duke@435 | 2821 | "Time the compilation policy") \ |
duke@435 | 2822 | \ |
duke@435 | 2823 | product(bool, UseCounterDecay, true, \ |
duke@435 | 2824 | "adjust recompilation counters") \ |
duke@435 | 2825 | \ |
duke@435 | 2826 | develop(intx, CounterHalfLifeTime, 30, \ |
duke@435 | 2827 | "half-life time of invocation counters (in secs)") \ |
duke@435 | 2828 | \ |
duke@435 | 2829 | develop(intx, CounterDecayMinIntervalLength, 500, \ |
duke@435 | 2830 | "Min. ms. between invocation of CounterDecay") \ |
duke@435 | 2831 | \ |
duke@435 | 2832 | product(bool, AlwaysCompileLoopMethods, false, \ |
duke@435 | 2833 | "when using recompilation, never interpret methods " \ |
duke@435 | 2834 | "containing loops") \ |
duke@435 | 2835 | \ |
duke@435 | 2836 | product(bool, DontCompileHugeMethods, true, \ |
duke@435 | 2837 | "don't compile methods > HugeMethodLimit") \ |
duke@435 | 2838 | \ |
duke@435 | 2839 | /* Bytecode escape analysis estimation. */ \ |
duke@435 | 2840 | product(bool, EstimateArgEscape, true, \ |
duke@435 | 2841 | "Analyze bytecodes to estimate escape state of arguments") \ |
duke@435 | 2842 | \ |
duke@435 | 2843 | product(intx, BCEATraceLevel, 0, \ |
duke@435 | 2844 | "How much tracing to do of bytecode escape analysis estimates") \ |
duke@435 | 2845 | \ |
duke@435 | 2846 | product(intx, MaxBCEAEstimateLevel, 5, \ |
duke@435 | 2847 | "Maximum number of nested calls that are analyzed by BC EA.") \ |
duke@435 | 2848 | \ |
duke@435 | 2849 | product(intx, MaxBCEAEstimateSize, 150, \ |
duke@435 | 2850 | "Maximum bytecode size of a method to be analyzed by BC EA.") \ |
duke@435 | 2851 | \ |
duke@435 | 2852 | product(intx, AllocatePrefetchStyle, 1, \ |
duke@435 | 2853 | "0 = no prefetch, " \ |
duke@435 | 2854 | "1 = prefetch instructions for each allocation, " \ |
kvn@1802 | 2855 | "2 = use TLAB watermark to gate allocation prefetch, " \ |
kvn@1802 | 2856 | "3 = use BIS instruction on Sparc for allocation prefetch") \ |
duke@435 | 2857 | \ |
duke@435 | 2858 | product(intx, AllocatePrefetchDistance, -1, \ |
duke@435 | 2859 | "Distance to prefetch ahead of allocation pointer") \ |
duke@435 | 2860 | \ |
duke@435 | 2861 | product(intx, AllocatePrefetchLines, 1, \ |
duke@435 | 2862 | "Number of lines to prefetch ahead of allocation pointer") \ |
duke@435 | 2863 | \ |
duke@435 | 2864 | product(intx, AllocatePrefetchStepSize, 16, \ |
duke@435 | 2865 | "Step size in bytes of sequential prefetch instructions") \ |
duke@435 | 2866 | \ |
duke@435 | 2867 | product(intx, AllocatePrefetchInstr, 0, \ |
duke@435 | 2868 | "Prefetch instruction to prefetch ahead of allocation pointer") \ |
duke@435 | 2869 | \ |
duke@435 | 2870 | product(intx, ReadPrefetchInstr, 0, \ |
duke@435 | 2871 | "Prefetch instruction to prefetch ahead") \ |
duke@435 | 2872 | \ |
duke@435 | 2873 | /* deoptimization */ \ |
duke@435 | 2874 | develop(bool, TraceDeoptimization, false, \ |
duke@435 | 2875 | "Trace deoptimization") \ |
duke@435 | 2876 | \ |
duke@435 | 2877 | develop(bool, DebugDeoptimization, false, \ |
duke@435 | 2878 | "Tracing various information while debugging deoptimization") \ |
duke@435 | 2879 | \ |
duke@435 | 2880 | product(intx, SelfDestructTimer, 0, \ |
duke@435 | 2881 | "Will cause VM to terminate after a given time (in minutes) " \ |
duke@435 | 2882 | "(0 means off)") \ |
duke@435 | 2883 | \ |
duke@435 | 2884 | product(intx, MaxJavaStackTraceDepth, 1024, \ |
duke@435 | 2885 | "Max. no. of lines in the stack trace for Java exceptions " \ |
duke@435 | 2886 | "(0 means all)") \ |
duke@435 | 2887 | \ |
bobv@2508 | 2888 | NOT_EMBEDDED(develop(intx, GuaranteedSafepointInterval, 1000, \ |
duke@435 | 2889 | "Guarantee a safepoint (at least) every so many milliseconds " \ |
bobv@2508 | 2890 | "(0 means none)")) \ |
bobv@2508 | 2891 | \ |
bobv@2508 | 2892 | EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
bobv@2508 | 2893 | "Guarantee a safepoint (at least) every so many milliseconds " \ |
bobv@2508 | 2894 | "(0 means none)")) \ |
duke@435 | 2895 | \ |
duke@435 | 2896 | product(intx, SafepointTimeoutDelay, 10000, \ |
duke@435 | 2897 | "Delay in milliseconds for option SafepointTimeout") \ |
duke@435 | 2898 | \ |
duke@435 | 2899 | product(intx, NmethodSweepFraction, 4, \ |
duke@435 | 2900 | "Number of invocations of sweeper to cover all nmethods") \ |
duke@435 | 2901 | \ |
never@1893 | 2902 | product(intx, NmethodSweepCheckInterval, 5, \ |
never@1893 | 2903 | "Compilers wake up every n seconds to possibly sweep nmethods") \ |
never@1893 | 2904 | \ |
duke@435 | 2905 | notproduct(intx, MemProfilingInterval, 500, \ |
duke@435 | 2906 | "Time between each invocation of the MemProfiler") \ |
duke@435 | 2907 | \ |
duke@435 | 2908 | develop(intx, MallocCatchPtr, -1, \ |
duke@435 | 2909 | "Hit breakpoint when mallocing/freeing this pointer") \ |
duke@435 | 2910 | \ |
duke@435 | 2911 | notproduct(intx, AssertRepeat, 1, \ |
duke@435 | 2912 | "number of times to evaluate expression in assert " \ |
duke@435 | 2913 | "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ |
duke@435 | 2914 | \ |
duke@435 | 2915 | notproduct(ccstrlist, SuppressErrorAt, "", \ |
duke@435 | 2916 | "List of assertions (file:line) to muzzle") \ |
duke@435 | 2917 | \ |
duke@435 | 2918 | notproduct(uintx, HandleAllocationLimit, 1024, \ |
duke@435 | 2919 | "Threshold for HandleMark allocation when +TraceHandleAllocation "\ |
duke@435 | 2920 | "is used") \ |
duke@435 | 2921 | \ |
duke@435 | 2922 | develop(uintx, TotalHandleAllocationLimit, 1024, \ |
duke@435 | 2923 | "Threshold for total handle allocation when " \ |
duke@435 | 2924 | "+TraceHandleAllocation is used") \ |
duke@435 | 2925 | \ |
duke@435 | 2926 | develop(intx, StackPrintLimit, 100, \ |
duke@435 | 2927 | "number of stack frames to print in VM-level stack dump") \ |
duke@435 | 2928 | \ |
duke@435 | 2929 | notproduct(intx, MaxElementPrintSize, 256, \ |
duke@435 | 2930 | "maximum number of elements to print") \ |
duke@435 | 2931 | \ |
duke@435 | 2932 | notproduct(intx, MaxSubklassPrintSize, 4, \ |
duke@435 | 2933 | "maximum number of subklasses to print when printing klass") \ |
duke@435 | 2934 | \ |
jrose@1592 | 2935 | product(intx, MaxInlineLevel, 9, \ |
duke@435 | 2936 | "maximum number of nested calls that are inlined") \ |
duke@435 | 2937 | \ |
jrose@1592 | 2938 | product(intx, MaxRecursiveInlineLevel, 1, \ |
duke@435 | 2939 | "maximum number of nested recursive calls that are inlined") \ |
duke@435 | 2940 | \ |
kvn@1110 | 2941 | product_pd(intx, InlineSmallCode, \ |
duke@435 | 2942 | "Only inline already compiled methods if their code size is " \ |
duke@435 | 2943 | "less than this") \ |
duke@435 | 2944 | \ |
duke@435 | 2945 | product(intx, MaxInlineSize, 35, \ |
duke@435 | 2946 | "maximum bytecode size of a method to be inlined") \ |
duke@435 | 2947 | \ |
duke@435 | 2948 | product_pd(intx, FreqInlineSize, \ |
duke@435 | 2949 | "maximum bytecode size of a frequent method to be inlined") \ |
duke@435 | 2950 | \ |
jrose@1592 | 2951 | product(intx, MaxTrivialSize, 6, \ |
duke@435 | 2952 | "maximum bytecode size of a trivial method to be inlined") \ |
duke@435 | 2953 | \ |
jrose@1592 | 2954 | product(intx, MinInliningThreshold, 250, \ |
duke@435 | 2955 | "min. invocation count a method needs to have to be inlined") \ |
duke@435 | 2956 | \ |
duke@435 | 2957 | develop(intx, AlignEntryCode, 4, \ |
duke@435 | 2958 | "aligns entry code to specified value (in bytes)") \ |
duke@435 | 2959 | \ |
duke@435 | 2960 | develop(intx, MethodHistogramCutoff, 100, \ |
duke@435 | 2961 | "cutoff value for method invoc. histogram (+CountCalls)") \ |
duke@435 | 2962 | \ |
duke@435 | 2963 | develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ |
duke@435 | 2964 | "# of interpreted methods to show in profile") \ |
duke@435 | 2965 | \ |
duke@435 | 2966 | develop(intx, ProfilerNumberOfCompiledMethods, 25, \ |
duke@435 | 2967 | "# of compiled methods to show in profile") \ |
duke@435 | 2968 | \ |
duke@435 | 2969 | develop(intx, ProfilerNumberOfStubMethods, 25, \ |
duke@435 | 2970 | "# of stub methods to show in profile") \ |
duke@435 | 2971 | \ |
duke@435 | 2972 | develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ |
duke@435 | 2973 | "# of runtime stub nodes to show in profile") \ |
duke@435 | 2974 | \ |
duke@435 | 2975 | product(intx, ProfileIntervalsTicks, 100, \ |
duke@435 | 2976 | "# of ticks between printing of interval profile " \ |
duke@435 | 2977 | "(+ProfileIntervals)") \ |
duke@435 | 2978 | \ |
duke@435 | 2979 | notproduct(intx, ScavengeALotInterval, 1, \ |
duke@435 | 2980 | "Interval between which scavenge will occur with +ScavengeALot") \ |
duke@435 | 2981 | \ |
duke@435 | 2982 | notproduct(intx, FullGCALotInterval, 1, \ |
duke@435 | 2983 | "Interval between which full gc will occur with +FullGCALot") \ |
duke@435 | 2984 | \ |
duke@435 | 2985 | notproduct(intx, FullGCALotStart, 0, \ |
duke@435 | 2986 | "For which invocation to start FullGCAlot") \ |
duke@435 | 2987 | \ |
duke@435 | 2988 | notproduct(intx, FullGCALotDummies, 32*K, \ |
duke@435 | 2989 | "Dummy object allocated with +FullGCALot, forcing all objects " \ |
duke@435 | 2990 | "to move") \ |
duke@435 | 2991 | \ |
duke@435 | 2992 | develop(intx, DontYieldALotInterval, 10, \ |
duke@435 | 2993 | "Interval between which yields will be dropped (milliseconds)") \ |
duke@435 | 2994 | \ |
duke@435 | 2995 | develop(intx, MinSleepInterval, 1, \ |
duke@435 | 2996 | "Minimum sleep() interval (milliseconds) when " \ |
duke@435 | 2997 | "ConvertSleepToYield is off (used for SOLARIS)") \ |
duke@435 | 2998 | \ |
duke@435 | 2999 | product(intx, EventLogLength, 2000, \ |
duke@435 | 3000 | "maximum nof events in event log") \ |
duke@435 | 3001 | \ |
duke@435 | 3002 | develop(intx, ProfilerPCTickThreshold, 15, \ |
duke@435 | 3003 | "Number of ticks in a PC buckets to be a hotspot") \ |
duke@435 | 3004 | \ |
duke@435 | 3005 | notproduct(intx, DeoptimizeALotInterval, 5, \ |
duke@435 | 3006 | "Number of exits until DeoptimizeALot kicks in") \ |
duke@435 | 3007 | \ |
duke@435 | 3008 | notproduct(intx, ZombieALotInterval, 5, \ |
duke@435 | 3009 | "Number of exits until ZombieALot kicks in") \ |
duke@435 | 3010 | \ |
duke@435 | 3011 | develop(bool, StressNonEntrant, false, \ |
duke@435 | 3012 | "Mark nmethods non-entrant at registration") \ |
duke@435 | 3013 | \ |
duke@435 | 3014 | diagnostic(intx, MallocVerifyInterval, 0, \ |
duke@435 | 3015 | "if non-zero, verify C heap after every N calls to " \ |
duke@435 | 3016 | "malloc/realloc/free") \ |
duke@435 | 3017 | \ |
duke@435 | 3018 | diagnostic(intx, MallocVerifyStart, 0, \ |
duke@435 | 3019 | "if non-zero, start verifying C heap after Nth call to " \ |
duke@435 | 3020 | "malloc/realloc/free") \ |
duke@435 | 3021 | \ |
iveresov@2138 | 3022 | product(intx, TypeProfileWidth, 2, \ |
duke@435 | 3023 | "number of receiver types to record in call/cast profile") \ |
duke@435 | 3024 | \ |
duke@435 | 3025 | develop(intx, BciProfileWidth, 2, \ |
duke@435 | 3026 | "number of return bci's to record in ret profile") \ |
duke@435 | 3027 | \ |
duke@435 | 3028 | product(intx, PerMethodRecompilationCutoff, 400, \ |
duke@435 | 3029 | "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ |
duke@435 | 3030 | \ |
kvn@1641 | 3031 | product(intx, PerBytecodeRecompilationCutoff, 200, \ |
duke@435 | 3032 | "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
duke@435 | 3033 | \ |
duke@435 | 3034 | product(intx, PerMethodTrapLimit, 100, \ |
duke@435 | 3035 | "Limit on traps (of one kind) in a method (includes inlines)") \ |
duke@435 | 3036 | \ |
duke@435 | 3037 | product(intx, PerBytecodeTrapLimit, 4, \ |
duke@435 | 3038 | "Limit on traps (of one kind) at a particular BCI") \ |
duke@435 | 3039 | \ |
duke@435 | 3040 | develop(intx, FreqCountInvocations, 1, \ |
duke@435 | 3041 | "Scaling factor for branch frequencies (deprecated)") \ |
duke@435 | 3042 | \ |
duke@435 | 3043 | develop(intx, InlineFrequencyRatio, 20, \ |
duke@435 | 3044 | "Ratio of call site execution to caller method invocation") \ |
duke@435 | 3045 | \ |
duke@435 | 3046 | develop_pd(intx, InlineFrequencyCount, \ |
duke@435 | 3047 | "Count of call site execution necessary to trigger frequent " \ |
duke@435 | 3048 | "inlining") \ |
duke@435 | 3049 | \ |
duke@435 | 3050 | develop(intx, InlineThrowCount, 50, \ |
duke@435 | 3051 | "Force inlining of interpreted methods that throw this often") \ |
duke@435 | 3052 | \ |
duke@435 | 3053 | develop(intx, InlineThrowMaxSize, 200, \ |
duke@435 | 3054 | "Force inlining of throwing methods smaller than this") \ |
duke@435 | 3055 | \ |
duke@435 | 3056 | product(intx, AliasLevel, 3, \ |
duke@435 | 3057 | "0 for no aliasing, 1 for oop/field/static/array split, " \ |
duke@435 | 3058 | "2 for class split, 3 for unique instances") \ |
duke@435 | 3059 | \ |
duke@435 | 3060 | develop(bool, VerifyAliases, false, \ |
duke@435 | 3061 | "perform extra checks on the results of alias analysis") \ |
duke@435 | 3062 | \ |
duke@435 | 3063 | develop(intx, ProfilerNodeSize, 1024, \ |
duke@435 | 3064 | "Size in K to allocate for the Profile Nodes of each thread") \ |
duke@435 | 3065 | \ |
duke@435 | 3066 | develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \ |
duke@435 | 3067 | "Number of times to spin wait on a v8 atomic operation lock") \ |
duke@435 | 3068 | \ |
duke@435 | 3069 | product(intx, ReadSpinIterations, 100, \ |
duke@435 | 3070 | "Number of read attempts before a yield (spin inner loop)") \ |
duke@435 | 3071 | \ |
duke@435 | 3072 | product_pd(intx, PreInflateSpin, \ |
duke@435 | 3073 | "Number of times to spin wait before inflation") \ |
duke@435 | 3074 | \ |
duke@435 | 3075 | product(intx, PreBlockSpin, 10, \ |
duke@435 | 3076 | "Number of times to spin in an inflated lock before going to " \ |
duke@435 | 3077 | "an OS lock") \ |
duke@435 | 3078 | \ |
duke@435 | 3079 | /* gc parameters */ \ |
phh@1499 | 3080 | product(uintx, InitialHeapSize, 0, \ |
phh@1499 | 3081 | "Initial heap size (in bytes); zero means OldSize + NewSize") \ |
phh@1499 | 3082 | \ |
phh@1499 | 3083 | product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ |
phh@1499 | 3084 | "Maximum heap size (in bytes)") \ |
phh@1499 | 3085 | \ |
phh@1499 | 3086 | product(uintx, OldSize, ScaleForWordSize(4*M), \ |
phh@1499 | 3087 | "Initial tenured generation size (in bytes)") \ |
phh@1499 | 3088 | \ |
phh@1722 | 3089 | product(uintx, NewSize, ScaleForWordSize(1*M), \ |
phh@1499 | 3090 | "Initial new generation size (in bytes)") \ |
duke@435 | 3091 | \ |
duke@435 | 3092 | product(uintx, MaxNewSize, max_uintx, \ |
phh@1499 | 3093 | "Maximum new generation size (in bytes), max_uintx means set " \ |
phh@1499 | 3094 | "ergonomically") \ |
duke@435 | 3095 | \ |
duke@435 | 3096 | product(uintx, PretenureSizeThreshold, 0, \ |
phh@1499 | 3097 | "Maximum size in bytes of objects allocated in DefNew " \ |
phh@1499 | 3098 | "generation; zero means no maximum") \ |
phh@1499 | 3099 | \ |
phh@1499 | 3100 | product(uintx, TLABSize, 0, \ |
phh@1499 | 3101 | "Starting TLAB size (in bytes); zero means set ergonomically") \ |
duke@435 | 3102 | \ |
duke@435 | 3103 | product(uintx, MinTLABSize, 2*K, \ |
duke@435 | 3104 | "Minimum allowed TLAB size (in bytes)") \ |
duke@435 | 3105 | \ |
duke@435 | 3106 | product(uintx, TLABAllocationWeight, 35, \ |
duke@435 | 3107 | "Allocation averaging weight") \ |
duke@435 | 3108 | \ |
duke@435 | 3109 | product(uintx, TLABWasteTargetPercent, 1, \ |
duke@435 | 3110 | "Percentage of Eden that can be wasted") \ |
duke@435 | 3111 | \ |
duke@435 | 3112 | product(uintx, TLABRefillWasteFraction, 64, \ |
duke@435 | 3113 | "Max TLAB waste at a refill (internal fragmentation)") \ |
duke@435 | 3114 | \ |
duke@435 | 3115 | product(uintx, TLABWasteIncrement, 4, \ |
duke@435 | 3116 | "Increment allowed waste at slow allocation") \ |
duke@435 | 3117 | \ |
phh@1499 | 3118 | product(intx, SurvivorRatio, 8, \ |
duke@435 | 3119 | "Ratio of eden/survivor space size") \ |
duke@435 | 3120 | \ |
phh@1499 | 3121 | product(intx, NewRatio, 2, \ |
duke@435 | 3122 | "Ratio of new/old generation sizes") \ |
duke@435 | 3123 | \ |
duke@435 | 3124 | product_pd(uintx, NewSizeThreadIncrease, \ |
duke@435 | 3125 | "Additional size added to desired new generation size per " \ |
duke@435 | 3126 | "non-daemon thread (in bytes)") \ |
duke@435 | 3127 | \ |
duke@435 | 3128 | product_pd(uintx, PermSize, \ |
phh@1499 | 3129 | "Initial size of permanent generation (in bytes)") \ |
duke@435 | 3130 | \ |
duke@435 | 3131 | product_pd(uintx, MaxPermSize, \ |
duke@435 | 3132 | "Maximum size of permanent generation (in bytes)") \ |
duke@435 | 3133 | \ |
duke@435 | 3134 | product(uintx, MinHeapFreeRatio, 40, \ |
duke@435 | 3135 | "Min percentage of heap free after GC to avoid expansion") \ |
duke@435 | 3136 | \ |
duke@435 | 3137 | product(uintx, MaxHeapFreeRatio, 70, \ |
duke@435 | 3138 | "Max percentage of heap free after GC to avoid shrinking") \ |
duke@435 | 3139 | \ |
duke@435 | 3140 | product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ |
duke@435 | 3141 | "Number of milliseconds per MB of free space in the heap") \ |
duke@435 | 3142 | \ |
duke@435 | 3143 | product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ |
duke@435 | 3144 | "Min change in heap space due to GC (in bytes)") \ |
duke@435 | 3145 | \ |
duke@435 | 3146 | product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \ |
duke@435 | 3147 | "Min expansion of permanent heap (in bytes)") \ |
duke@435 | 3148 | \ |
duke@435 | 3149 | product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \ |
duke@435 | 3150 | "Max expansion of permanent heap without full GC (in bytes)") \ |
duke@435 | 3151 | \ |
duke@435 | 3152 | product(intx, QueuedAllocationWarningCount, 0, \ |
duke@435 | 3153 | "Number of times an allocation that queues behind a GC " \ |
duke@435 | 3154 | "will retry before printing a warning") \ |
duke@435 | 3155 | \ |
duke@435 | 3156 | diagnostic(uintx, VerifyGCStartAt, 0, \ |
duke@435 | 3157 | "GC invoke count where +VerifyBefore/AfterGC kicks in") \ |
duke@435 | 3158 | \ |
duke@435 | 3159 | diagnostic(intx, VerifyGCLevel, 0, \ |
duke@435 | 3160 | "Generation level at which to start +VerifyBefore/AfterGC") \ |
duke@435 | 3161 | \ |
duke@435 | 3162 | develop(uintx, ExitAfterGCNum, 0, \ |
duke@435 | 3163 | "If non-zero, exit after this GC.") \ |
duke@435 | 3164 | \ |
duke@435 | 3165 | product(intx, MaxTenuringThreshold, 15, \ |
duke@435 | 3166 | "Maximum value for tenuring threshold") \ |
duke@435 | 3167 | \ |
duke@435 | 3168 | product(intx, InitialTenuringThreshold, 7, \ |
duke@435 | 3169 | "Initial value for tenuring threshold") \ |
duke@435 | 3170 | \ |
duke@435 | 3171 | product(intx, TargetSurvivorRatio, 50, \ |
duke@435 | 3172 | "Desired percentage of survivor space used after scavenge") \ |
duke@435 | 3173 | \ |
jcoomes@873 | 3174 | product(uintx, MarkSweepDeadRatio, 5, \ |
duke@435 | 3175 | "Percentage (0-100) of the old gen allowed as dead wood." \ |
duke@435 | 3176 | "Serial mark sweep treats this as both the min and max value." \ |
duke@435 | 3177 | "CMS uses this value only if it falls back to mark sweep." \ |
duke@435 | 3178 | "Par compact uses a variable scale based on the density of the" \ |
duke@435 | 3179 | "generation and treats this as the max value when the heap is" \ |
duke@435 | 3180 | "either completely full or completely empty. Par compact also" \ |
duke@435 | 3181 | "has a smaller default value; see arguments.cpp.") \ |
duke@435 | 3182 | \ |
jcoomes@873 | 3183 | product(uintx, PermMarkSweepDeadRatio, 20, \ |
duke@435 | 3184 | "Percentage (0-100) of the perm gen allowed as dead wood." \ |
duke@435 | 3185 | "See MarkSweepDeadRatio for collector-specific comments.") \ |
duke@435 | 3186 | \ |
duke@435 | 3187 | product(intx, MarkSweepAlwaysCompactCount, 4, \ |
duke@435 | 3188 | "How often should we fully compact the heap (ignoring the dead " \ |
duke@435 | 3189 | "space parameters)") \ |
duke@435 | 3190 | \ |
duke@435 | 3191 | product(intx, PrintCMSStatistics, 0, \ |
duke@435 | 3192 | "Statistics for CMS") \ |
duke@435 | 3193 | \ |
duke@435 | 3194 | product(bool, PrintCMSInitiationStatistics, false, \ |
duke@435 | 3195 | "Statistics for initiating a CMS collection") \ |
duke@435 | 3196 | \ |
duke@435 | 3197 | product(intx, PrintFLSStatistics, 0, \ |
duke@435 | 3198 | "Statistics for CMS' FreeListSpace") \ |
duke@435 | 3199 | \ |
duke@435 | 3200 | product(intx, PrintFLSCensus, 0, \ |
duke@435 | 3201 | "Census for CMS' FreeListSpace") \ |
duke@435 | 3202 | \ |
duke@435 | 3203 | develop(uintx, GCExpandToAllocateDelayMillis, 0, \ |
duke@435 | 3204 | "Delay in ms between expansion and allocation") \ |
duke@435 | 3205 | \ |
duke@435 | 3206 | product(intx, DeferThrSuspendLoopCount, 4000, \ |
duke@435 | 3207 | "(Unstable) Number of times to iterate in safepoint loop " \ |
duke@435 | 3208 | " before blocking VM threads ") \ |
duke@435 | 3209 | \ |
duke@435 | 3210 | product(intx, DeferPollingPageLoopCount, -1, \ |
duke@435 | 3211 | "(Unsafe,Unstable) Number of iterations in safepoint loop " \ |
duke@435 | 3212 | "before changing safepoint polling page to RO ") \ |
duke@435 | 3213 | \ |
duke@435 | 3214 | product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ |
duke@435 | 3215 | \ |
duke@435 | 3216 | product(bool, PSChunkLargeArrays, true, \ |
duke@435 | 3217 | "true: process large arrays in chunks") \ |
duke@435 | 3218 | \ |
duke@435 | 3219 | product(uintx, GCDrainStackTargetSize, 64, \ |
duke@435 | 3220 | "how many entries we'll try to leave on the stack during " \ |
duke@435 | 3221 | "parallel GC") \ |
duke@435 | 3222 | \ |
duke@435 | 3223 | /* stack parameters */ \ |
duke@435 | 3224 | product_pd(intx, StackYellowPages, \ |
duke@435 | 3225 | "Number of yellow zone (recoverable overflows) pages") \ |
duke@435 | 3226 | \ |
duke@435 | 3227 | product_pd(intx, StackRedPages, \ |
duke@435 | 3228 | "Number of red zone (unrecoverable overflows) pages") \ |
duke@435 | 3229 | \ |
duke@435 | 3230 | product_pd(intx, StackShadowPages, \ |
duke@435 | 3231 | "Number of shadow zone (for overflow checking) pages" \ |
duke@435 | 3232 | " this should exceed the depth of the VM and native call stack") \ |
duke@435 | 3233 | \ |
duke@435 | 3234 | product_pd(intx, ThreadStackSize, \ |
duke@435 | 3235 | "Thread Stack Size (in Kbytes)") \ |
duke@435 | 3236 | \ |
duke@435 | 3237 | product_pd(intx, VMThreadStackSize, \ |
duke@435 | 3238 | "Non-Java Thread Stack Size (in Kbytes)") \ |
duke@435 | 3239 | \ |
duke@435 | 3240 | product_pd(intx, CompilerThreadStackSize, \ |
duke@435 | 3241 | "Compiler Thread Stack Size (in Kbytes)") \ |
duke@435 | 3242 | \ |
duke@435 | 3243 | develop_pd(uintx, JVMInvokeMethodSlack, \ |
duke@435 | 3244 | "Stack space (bytes) required for JVM_InvokeMethod to complete") \ |
duke@435 | 3245 | \ |
duke@435 | 3246 | product(uintx, ThreadSafetyMargin, 50*M, \ |
duke@435 | 3247 | "Thread safety margin is used on fixed-stack LinuxThreads (on " \ |
duke@435 | 3248 | "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ |
duke@435 | 3249 | "disable this feature") \ |
duke@435 | 3250 | \ |
duke@435 | 3251 | /* code cache parameters */ \ |
duke@435 | 3252 | develop(uintx, CodeCacheSegmentSize, 64, \ |
duke@435 | 3253 | "Code cache segment size (in bytes) - smallest unit of " \ |
duke@435 | 3254 | "allocation") \ |
duke@435 | 3255 | \ |
duke@435 | 3256 | develop_pd(intx, CodeEntryAlignment, \ |
duke@435 | 3257 | "Code entry alignment for generated code (in bytes)") \ |
duke@435 | 3258 | \ |
kvn@1800 | 3259 | product_pd(intx, OptoLoopAlignment, \ |
kvn@1800 | 3260 | "Align inner loops to zero relative to this modulus") \ |
kvn@1800 | 3261 | \ |
duke@435 | 3262 | product_pd(uintx, InitialCodeCacheSize, \ |
duke@435 | 3263 | "Initial code cache size (in bytes)") \ |
duke@435 | 3264 | \ |
duke@435 | 3265 | product_pd(uintx, ReservedCodeCacheSize, \ |
duke@435 | 3266 | "Reserved code cache size (in bytes) - maximum code cache size") \ |
duke@435 | 3267 | \ |
duke@435 | 3268 | product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ |
duke@435 | 3269 | "When less than X space left, we stop compiling.") \ |
duke@435 | 3270 | \ |
duke@435 | 3271 | product_pd(uintx, CodeCacheExpansionSize, \ |
duke@435 | 3272 | "Code cache expansion size (in bytes)") \ |
duke@435 | 3273 | \ |
duke@435 | 3274 | develop_pd(uintx, CodeCacheMinBlockLength, \ |
duke@435 | 3275 | "Minimum number of segments in a code cache block.") \ |
duke@435 | 3276 | \ |
duke@435 | 3277 | notproduct(bool, ExitOnFullCodeCache, false, \ |
duke@435 | 3278 | "Exit the VM if we fill the code cache.") \ |
duke@435 | 3279 | \ |
kvn@1637 | 3280 | product(bool, UseCodeCacheFlushing, false, \ |
kvn@1637 | 3281 | "Attempt to clean the code cache before shutting off compiler") \ |
kvn@1637 | 3282 | \ |
kvn@1637 | 3283 | product(intx, MinCodeCacheFlushingInterval, 30, \ |
kvn@1637 | 3284 | "Min number of seconds between code cache cleaning sessions") \ |
kvn@1637 | 3285 | \ |
kvn@1637 | 3286 | product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ |
kvn@1637 | 3287 | "When less than X space left, start code cache cleaning") \ |
kvn@1637 | 3288 | \ |
duke@435 | 3289 | /* interpreter debugging */ \ |
duke@435 | 3290 | develop(intx, BinarySwitchThreshold, 5, \ |
duke@435 | 3291 | "Minimal number of lookupswitch entries for rewriting to binary " \ |
duke@435 | 3292 | "switch") \ |
duke@435 | 3293 | \ |
duke@435 | 3294 | develop(intx, StopInterpreterAt, 0, \ |
duke@435 | 3295 | "Stops interpreter execution at specified bytecode number") \ |
duke@435 | 3296 | \ |
duke@435 | 3297 | develop(intx, TraceBytecodesAt, 0, \ |
duke@435 | 3298 | "Traces bytecodes starting with specified bytecode number") \ |
duke@435 | 3299 | \ |
duke@435 | 3300 | /* compiler interface */ \ |
duke@435 | 3301 | develop(intx, CIStart, 0, \ |
duke@435 | 3302 | "the id of the first compilation to permit") \ |
duke@435 | 3303 | \ |
duke@435 | 3304 | develop(intx, CIStop, -1, \ |
duke@435 | 3305 | "the id of the last compilation to permit") \ |
duke@435 | 3306 | \ |
duke@435 | 3307 | develop(intx, CIStartOSR, 0, \ |
duke@435 | 3308 | "the id of the first osr compilation to permit " \ |
duke@435 | 3309 | "(CICountOSR must be on)") \ |
duke@435 | 3310 | \ |
duke@435 | 3311 | develop(intx, CIStopOSR, -1, \ |
duke@435 | 3312 | "the id of the last osr compilation to permit " \ |
duke@435 | 3313 | "(CICountOSR must be on)") \ |
duke@435 | 3314 | \ |
duke@435 | 3315 | develop(intx, CIBreakAtOSR, -1, \ |
duke@435 | 3316 | "id of osr compilation to break at") \ |
duke@435 | 3317 | \ |
duke@435 | 3318 | develop(intx, CIBreakAt, -1, \ |
duke@435 | 3319 | "id of compilation to break at") \ |
duke@435 | 3320 | \ |
duke@435 | 3321 | product(ccstrlist, CompileOnly, "", \ |
duke@435 | 3322 | "List of methods (pkg/class.name) to restrict compilation to") \ |
duke@435 | 3323 | \ |
duke@435 | 3324 | product(ccstr, CompileCommandFile, NULL, \ |
duke@435 | 3325 | "Read compiler commands from this file [.hotspot_compiler]") \ |
duke@435 | 3326 | \ |
duke@435 | 3327 | product(ccstrlist, CompileCommand, "", \ |
duke@435 | 3328 | "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ |
duke@435 | 3329 | \ |
duke@435 | 3330 | product(bool, CICompilerCountPerCPU, false, \ |
duke@435 | 3331 | "1 compiler thread for log(N CPUs)") \ |
duke@435 | 3332 | \ |
duke@435 | 3333 | develop(intx, CIFireOOMAt, -1, \ |
duke@435 | 3334 | "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ |
duke@435 | 3335 | "(non-negative value throws OOM after this many CI accesses " \ |
duke@435 | 3336 | "in each compile)") \ |
duke@435 | 3337 | \ |
duke@435 | 3338 | develop(intx, CIFireOOMAtDelay, -1, \ |
duke@435 | 3339 | "Wait for this many CI accesses to occur in all compiles before " \ |
duke@435 | 3340 | "beginning to throw OutOfMemoryErrors in each compile") \ |
duke@435 | 3341 | \ |
jcoomes@1344 | 3342 | notproduct(bool, CIObjectFactoryVerify, false, \ |
jcoomes@1344 | 3343 | "enable potentially expensive verification in ciObjectFactory") \ |
jcoomes@1344 | 3344 | \ |
duke@435 | 3345 | /* Priorities */ \ |
duke@435 | 3346 | product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ |
duke@435 | 3347 | \ |
duke@435 | 3348 | product(intx, ThreadPriorityPolicy, 0, \ |
duke@435 | 3349 | "0 : Normal. "\ |
duke@435 | 3350 | " VM chooses priorities that are appropriate for normal "\ |
duke@435 | 3351 | " applications. On Solaris NORM_PRIORITY and above are mapped "\ |
duke@435 | 3352 | " to normal native priority. Java priorities below NORM_PRIORITY"\ |
duke@435 | 3353 | " map to lower native priority values. On Windows applications"\ |
duke@435 | 3354 | " are allowed to use higher native priorities. However, with "\ |
duke@435 | 3355 | " ThreadPriorityPolicy=0, VM will not use the highest possible"\ |
duke@435 | 3356 | " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ |
duke@435 | 3357 | " interfere with system threads. On Linux thread priorities "\ |
duke@435 | 3358 | " are ignored because the OS does not support static priority "\ |
duke@435 | 3359 | " in SCHED_OTHER scheduling class which is the only choice for"\ |
duke@435 | 3360 | " non-root, non-realtime applications. "\ |
duke@435 | 3361 | "1 : Aggressive. "\ |
duke@435 | 3362 | " Java thread priorities map over to the entire range of "\ |
duke@435 | 3363 | " native thread priorities. Higher Java thread priorities map "\ |
duke@435 | 3364 | " to higher native thread priorities. This policy should be "\ |
duke@435 | 3365 | " used with care, as sometimes it can cause performance "\ |
duke@435 | 3366 | " degradation in the application and/or the entire system. On "\ |
duke@435 | 3367 | " Linux this policy requires root privilege.") \ |
duke@435 | 3368 | \ |
duke@435 | 3369 | product(bool, ThreadPriorityVerbose, false, \ |
duke@435 | 3370 | "print priority changes") \ |
duke@435 | 3371 | \ |
duke@435 | 3372 | product(intx, DefaultThreadPriority, -1, \ |
duke@435 | 3373 | "what native priority threads run at if not specified elsewhere (-1 means no change)") \ |
duke@435 | 3374 | \ |
duke@435 | 3375 | product(intx, CompilerThreadPriority, -1, \ |
duke@435 | 3376 | "what priority should compiler threads run at (-1 means no change)") \ |
duke@435 | 3377 | \ |
duke@435 | 3378 | product(intx, VMThreadPriority, -1, \ |
duke@435 | 3379 | "what priority should VM threads run at (-1 means no change)") \ |
duke@435 | 3380 | \ |
duke@435 | 3381 | product(bool, CompilerThreadHintNoPreempt, true, \ |
duke@435 | 3382 | "(Solaris only) Give compiler threads an extra quanta") \ |
duke@435 | 3383 | \ |
duke@435 | 3384 | product(bool, VMThreadHintNoPreempt, false, \ |
duke@435 | 3385 | "(Solaris only) Give VM thread an extra quanta") \ |
duke@435 | 3386 | \ |
duke@435 | 3387 | product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3388 | product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3389 | product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3390 | product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3391 | product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3392 | product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3393 | product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3394 | product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3395 | product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 3396 | product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ |
duke@435 | 3397 | \ |
duke@435 | 3398 | /* compiler debugging */ \ |
duke@435 | 3399 | notproduct(intx, CompileTheWorldStartAt, 1, \ |
duke@435 | 3400 | "First class to consider when using +CompileTheWorld") \ |
duke@435 | 3401 | \ |
duke@435 | 3402 | notproduct(intx, CompileTheWorldStopAt, max_jint, \ |
duke@435 | 3403 | "Last class to consider when using +CompileTheWorld") \ |
duke@435 | 3404 | \ |
duke@435 | 3405 | develop(intx, NewCodeParameter, 0, \ |
duke@435 | 3406 | "Testing Only: Create a dedicated integer parameter before " \ |
duke@435 | 3407 | "putback") \ |
duke@435 | 3408 | \ |
duke@435 | 3409 | /* new oopmap storage allocation */ \ |
duke@435 | 3410 | develop(intx, MinOopMapAllocation, 8, \ |
duke@435 | 3411 | "Minimum number of OopMap entries in an OopMapSet") \ |
duke@435 | 3412 | \ |
duke@435 | 3413 | /* Background Compilation */ \ |
duke@435 | 3414 | develop(intx, LongCompileThreshold, 50, \ |
duke@435 | 3415 | "Used with +TraceLongCompiles") \ |
duke@435 | 3416 | \ |
duke@435 | 3417 | product(intx, StarvationMonitorInterval, 200, \ |
duke@435 | 3418 | "Pause between each check in ms") \ |
duke@435 | 3419 | \ |
duke@435 | 3420 | /* recompilation */ \ |
duke@435 | 3421 | product_pd(intx, CompileThreshold, \ |
duke@435 | 3422 | "number of interpreted method invocations before (re-)compiling") \ |
duke@435 | 3423 | \ |
duke@435 | 3424 | product_pd(intx, BackEdgeThreshold, \ |
duke@435 | 3425 | "Interpreter Back edge threshold at which an OSR compilation is invoked")\ |
duke@435 | 3426 | \ |
iveresov@2138 | 3427 | product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
iveresov@2138 | 3428 | "Interpreter (tier 0) invocation notification frequency.") \ |
iveresov@2138 | 3429 | \ |
iveresov@2138 | 3430 | product(intx, Tier2InvokeNotifyFreqLog, 11, \ |
iveresov@2138 | 3431 | "C1 without MDO (tier 2) invocation notification frequency.") \ |
iveresov@2138 | 3432 | \ |
iveresov@2138 | 3433 | product(intx, Tier3InvokeNotifyFreqLog, 10, \ |
iveresov@2138 | 3434 | "C1 with MDO profiling (tier 3) invocation notification " \ |
iveresov@2138 | 3435 | "frequency.") \ |
iveresov@2138 | 3436 | \ |
iveresov@2138 | 3437 | product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
iveresov@2138 | 3438 | "Interpreter (tier 0) invocation notification frequency.") \ |
iveresov@2138 | 3439 | \ |
iveresov@2138 | 3440 | product(intx, Tier2BackedgeNotifyFreqLog, 14, \ |
iveresov@2138 | 3441 | "C1 without MDO (tier 2) invocation notification frequency.") \ |
iveresov@2138 | 3442 | \ |
iveresov@2138 | 3443 | product(intx, Tier3BackedgeNotifyFreqLog, 13, \ |
iveresov@2138 | 3444 | "C1 with MDO profiling (tier 3) invocation notification " \ |
iveresov@2138 | 3445 | "frequency.") \ |
iveresov@2138 | 3446 | \ |
iveresov@2138 | 3447 | product(intx, Tier2CompileThreshold, 0, \ |
iveresov@2138 | 3448 | "threshold at which tier 2 compilation is invoked") \ |
iveresov@2138 | 3449 | \ |
iveresov@2138 | 3450 | product(intx, Tier2BackEdgeThreshold, 0, \ |
iveresov@2138 | 3451 | "Back edge threshold at which tier 2 compilation is invoked") \ |
iveresov@2138 | 3452 | \ |
iveresov@2138 | 3453 | product(intx, Tier3InvocationThreshold, 200, \ |
iveresov@2138 | 3454 | "Compile if number of method invocations crosses this " \ |
iveresov@2138 | 3455 | "threshold") \ |
iveresov@2138 | 3456 | \ |
iveresov@2138 | 3457 | product(intx, Tier3MinInvocationThreshold, 100, \ |
iveresov@2138 | 3458 | "Minimum invocation to compile at tier 3") \ |
iveresov@2138 | 3459 | \ |
iveresov@2138 | 3460 | product(intx, Tier3CompileThreshold, 2000, \ |
iveresov@2138 | 3461 | "Threshold at which tier 3 compilation is invoked (invocation " \ |
iveresov@2138 | 3462 | "minimum must be satisfied.") \ |
iveresov@2138 | 3463 | \ |
iveresov@2138 | 3464 | product(intx, Tier3BackEdgeThreshold, 7000, \ |
iveresov@2138 | 3465 | "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
iveresov@2138 | 3466 | \ |
iveresov@2138 | 3467 | product(intx, Tier4InvocationThreshold, 5000, \ |
iveresov@2138 | 3468 | "Compile if number of method invocations crosses this " \ |
iveresov@2138 | 3469 | "threshold") \ |
iveresov@2138 | 3470 | \ |
iveresov@2138 | 3471 | product(intx, Tier4MinInvocationThreshold, 600, \ |
iveresov@2138 | 3472 | "Minimum invocation to compile at tier 4") \ |
iveresov@2138 | 3473 | \ |
iveresov@2138 | 3474 | product(intx, Tier4CompileThreshold, 15000, \ |
iveresov@2138 | 3475 | "Threshold at which tier 4 compilation is invoked (invocation " \ |
iveresov@2138 | 3476 | "minimum must be satisfied.") \ |
iveresov@2138 | 3477 | \ |
iveresov@2138 | 3478 | product(intx, Tier4BackEdgeThreshold, 40000, \ |
iveresov@2138 | 3479 | "Back edge threshold at which tier 4 OSR compilation is invoked") \ |
iveresov@2138 | 3480 | \ |
iveresov@2138 | 3481 | product(intx, Tier3DelayOn, 5, \ |
iveresov@2138 | 3482 | "If C2 queue size grows over this amount per compiler thread " \ |
iveresov@2138 | 3483 | "stop compiling at tier 3 and start compiling at tier 2") \ |
iveresov@2138 | 3484 | \ |
iveresov@2138 | 3485 | product(intx, Tier3DelayOff, 2, \ |
iveresov@2138 | 3486 | "If C2 queue size is less than this amount per compiler thread " \ |
iveresov@2138 | 3487 | "allow methods compiled at tier 2 transition to tier 3") \ |
iveresov@2138 | 3488 | \ |
iveresov@2138 | 3489 | product(intx, Tier3LoadFeedback, 5, \ |
iveresov@2138 | 3490 | "Tier 3 thresholds will increase twofold when C1 queue size " \ |
iveresov@2138 | 3491 | "reaches this amount per compiler thread") \ |
iveresov@2138 | 3492 | \ |
iveresov@2138 | 3493 | product(intx, Tier4LoadFeedback, 3, \ |
iveresov@2138 | 3494 | "Tier 4 thresholds will increase twofold when C2 queue size " \ |
iveresov@2138 | 3495 | "reaches this amount per compiler thread") \ |
iveresov@2138 | 3496 | \ |
iveresov@2138 | 3497 | product(intx, TieredCompileTaskTimeout, 50, \ |
iveresov@2138 | 3498 | "Kill compile task if method was not used within " \ |
iveresov@2138 | 3499 | "given timeout in milliseconds") \ |
iveresov@2138 | 3500 | \ |
iveresov@2138 | 3501 | product(intx, TieredStopAtLevel, 4, \ |
iveresov@2138 | 3502 | "Stop at given compilation level") \ |
iveresov@2138 | 3503 | \ |
iveresov@2138 | 3504 | product(intx, Tier0ProfilingStartPercentage, 200, \ |
iveresov@2138 | 3505 | "Start profiling in interpreter if the counters exceed tier 3" \ |
iveresov@2138 | 3506 | "thresholds by the specified percentage") \ |
iveresov@2138 | 3507 | \ |
iveresov@2138 | 3508 | product(intx, TieredRateUpdateMinTime, 1, \ |
iveresov@2138 | 3509 | "Minimum rate sampling interval (in milliseconds)") \ |
iveresov@2138 | 3510 | \ |
iveresov@2138 | 3511 | product(intx, TieredRateUpdateMaxTime, 25, \ |
iveresov@2138 | 3512 | "Maximum rate sampling interval (in milliseconds)") \ |
duke@435 | 3513 | \ |
duke@435 | 3514 | product_pd(bool, TieredCompilation, \ |
iveresov@2138 | 3515 | "Enable tiered compilation") \ |
iveresov@2138 | 3516 | \ |
iveresov@2138 | 3517 | product(bool, PrintTieredEvents, false, \ |
iveresov@2138 | 3518 | "Print tiered events notifications") \ |
duke@435 | 3519 | \ |
duke@435 | 3520 | product(bool, StressTieredRuntime, false, \ |
duke@435 | 3521 | "Alternate client and server compiler on compile requests") \ |
duke@435 | 3522 | \ |
duke@435 | 3523 | product_pd(intx, OnStackReplacePercentage, \ |
duke@435 | 3524 | "NON_TIERED number of method invocations/branches (expressed as %"\ |
duke@435 | 3525 | "of CompileThreshold) before (re-)compiling OSR code") \ |
duke@435 | 3526 | \ |
duke@435 | 3527 | product(intx, InterpreterProfilePercentage, 33, \ |
duke@435 | 3528 | "NON_TIERED number of method invocations/branches (expressed as %"\ |
duke@435 | 3529 | "of CompileThreshold) before profiling in the interpreter") \ |
duke@435 | 3530 | \ |
duke@435 | 3531 | develop(intx, MaxRecompilationSearchLength, 10, \ |
duke@435 | 3532 | "max. # frames to inspect searching for recompilee") \ |
duke@435 | 3533 | \ |
duke@435 | 3534 | develop(intx, MaxInterpretedSearchLength, 3, \ |
duke@435 | 3535 | "max. # interp. frames to skip when searching for recompilee") \ |
duke@435 | 3536 | \ |
duke@435 | 3537 | develop(intx, DesiredMethodLimit, 8000, \ |
duke@435 | 3538 | "desired max. method size (in bytecodes) after inlining") \ |
duke@435 | 3539 | \ |
duke@435 | 3540 | develop(intx, HugeMethodLimit, 8000, \ |
duke@435 | 3541 | "don't compile methods larger than this if " \ |
duke@435 | 3542 | "+DontCompileHugeMethods") \ |
duke@435 | 3543 | \ |
duke@435 | 3544 | /* New JDK 1.4 reflection implementation */ \ |
duke@435 | 3545 | \ |
duke@435 | 3546 | develop(bool, UseNewReflection, true, \ |
duke@435 | 3547 | "Temporary flag for transition to reflection based on dynamic " \ |
duke@435 | 3548 | "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ |
duke@435 | 3549 | "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ |
duke@435 | 3550 | "changes were needed") \ |
duke@435 | 3551 | \ |
duke@435 | 3552 | develop(bool, VerifyReflectionBytecodes, false, \ |
duke@435 | 3553 | "Force verification of 1.4 reflection bytecodes. Does not work " \ |
duke@435 | 3554 | "in situations like that described in 4486457 or for " \ |
duke@435 | 3555 | "constructors generated for serialization, so can not be enabled "\ |
duke@435 | 3556 | "in product.") \ |
duke@435 | 3557 | \ |
duke@435 | 3558 | product(bool, ReflectionWrapResolutionErrors, true, \ |
duke@435 | 3559 | "Temporary flag for transition to AbstractMethodError wrapped " \ |
duke@435 | 3560 | "in InvocationTargetException. See 6531596") \ |
duke@435 | 3561 | \ |
duke@435 | 3562 | \ |
duke@435 | 3563 | develop(intx, FastSuperclassLimit, 8, \ |
duke@435 | 3564 | "Depth of hardwired instanceof accelerator array") \ |
duke@435 | 3565 | \ |
duke@435 | 3566 | /* Properties for Java libraries */ \ |
duke@435 | 3567 | \ |
duke@435 | 3568 | product(intx, MaxDirectMemorySize, -1, \ |
duke@435 | 3569 | "Maximum total size of NIO direct-buffer allocations") \ |
duke@435 | 3570 | \ |
duke@435 | 3571 | /* temporary developer defined flags */ \ |
duke@435 | 3572 | \ |
duke@435 | 3573 | diagnostic(bool, UseNewCode, false, \ |
duke@435 | 3574 | "Testing Only: Use the new version while testing") \ |
duke@435 | 3575 | \ |
duke@435 | 3576 | diagnostic(bool, UseNewCode2, false, \ |
duke@435 | 3577 | "Testing Only: Use the new version while testing") \ |
duke@435 | 3578 | \ |
duke@435 | 3579 | diagnostic(bool, UseNewCode3, false, \ |
duke@435 | 3580 | "Testing Only: Use the new version while testing") \ |
duke@435 | 3581 | \ |
duke@435 | 3582 | /* flags for performance data collection */ \ |
duke@435 | 3583 | \ |
bobv@2508 | 3584 | NOT_EMBEDDED(product(bool, UsePerfData, true, \ |
duke@435 | 3585 | "Flag to disable jvmstat instrumentation for performance testing" \ |
bobv@2508 | 3586 | "and problem isolation purposes.")) \ |
bobv@2508 | 3587 | \ |
bobv@2508 | 3588 | EMBEDDED_ONLY(product(bool, UsePerfData, false, \ |
bobv@2508 | 3589 | "Flag to disable jvmstat instrumentation for performance testing" \ |
bobv@2508 | 3590 | "and problem isolation purposes.")) \ |
duke@435 | 3591 | \ |
duke@435 | 3592 | product(bool, PerfDataSaveToFile, false, \ |
duke@435 | 3593 | "Save PerfData memory to hsperfdata_<pid> file on exit") \ |
duke@435 | 3594 | \ |
duke@435 | 3595 | product(ccstr, PerfDataSaveFile, NULL, \ |
duke@435 | 3596 | "Save PerfData memory to the specified absolute pathname," \ |
duke@435 | 3597 | "%p in the file name if present will be replaced by pid") \ |
duke@435 | 3598 | \ |
duke@435 | 3599 | product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ |
duke@435 | 3600 | "Data sampling interval in milliseconds") \ |
duke@435 | 3601 | \ |
duke@435 | 3602 | develop(bool, PerfTraceDataCreation, false, \ |
duke@435 | 3603 | "Trace creation of Performance Data Entries") \ |
duke@435 | 3604 | \ |
duke@435 | 3605 | develop(bool, PerfTraceMemOps, false, \ |
duke@435 | 3606 | "Trace PerfMemory create/attach/detach calls") \ |
duke@435 | 3607 | \ |
duke@435 | 3608 | product(bool, PerfDisableSharedMem, false, \ |
duke@435 | 3609 | "Store performance data in standard memory") \ |
duke@435 | 3610 | \ |
duke@435 | 3611 | product(intx, PerfDataMemorySize, 32*K, \ |
duke@435 | 3612 | "Size of performance data memory region. Will be rounded " \ |
duke@435 | 3613 | "up to a multiple of the native os page size.") \ |
duke@435 | 3614 | \ |
duke@435 | 3615 | product(intx, PerfMaxStringConstLength, 1024, \ |
duke@435 | 3616 | "Maximum PerfStringConstant string length before truncation") \ |
duke@435 | 3617 | \ |
duke@435 | 3618 | product(bool, PerfAllowAtExitRegistration, false, \ |
duke@435 | 3619 | "Allow registration of atexit() methods") \ |
duke@435 | 3620 | \ |
duke@435 | 3621 | product(bool, PerfBypassFileSystemCheck, false, \ |
duke@435 | 3622 | "Bypass Win32 file system criteria checks (Windows Only)") \ |
duke@435 | 3623 | \ |
duke@435 | 3624 | product(intx, UnguardOnExecutionViolation, 0, \ |
duke@435 | 3625 | "Unguard page and retry on no-execute fault (Win32 only)" \ |
duke@435 | 3626 | "0=off, 1=conservative, 2=aggressive") \ |
duke@435 | 3627 | \ |
duke@435 | 3628 | /* Serviceability Support */ \ |
duke@435 | 3629 | \ |
duke@435 | 3630 | product(bool, ManagementServer, false, \ |
duke@435 | 3631 | "Create JMX Management Server") \ |
duke@435 | 3632 | \ |
duke@435 | 3633 | product(bool, DisableAttachMechanism, false, \ |
duke@435 | 3634 | "Disable mechanism that allows tools to attach to this VM") \ |
duke@435 | 3635 | \ |
duke@435 | 3636 | product(bool, StartAttachListener, false, \ |
duke@435 | 3637 | "Always start Attach Listener at VM startup") \ |
duke@435 | 3638 | \ |
duke@435 | 3639 | manageable(bool, PrintConcurrentLocks, false, \ |
duke@435 | 3640 | "Print java.util.concurrent locks in thread dump") \ |
duke@435 | 3641 | \ |
kamg@2525 | 3642 | product(bool, TransmitErrorReport, false, \ |
kamg@2515 | 3643 | "Enable error report transmission on erroneous termination") \ |
kamg@2515 | 3644 | \ |
kamg@2525 | 3645 | product(ccstr, ErrorReportServer, NULL, \ |
kamg@2515 | 3646 | "Override built-in error report server address") \ |
kamg@2515 | 3647 | \ |
duke@435 | 3648 | /* Shared spaces */ \ |
duke@435 | 3649 | \ |
duke@435 | 3650 | product(bool, UseSharedSpaces, true, \ |
duke@435 | 3651 | "Use shared spaces in the permanent generation") \ |
duke@435 | 3652 | \ |
duke@435 | 3653 | product(bool, RequireSharedSpaces, false, \ |
duke@435 | 3654 | "Require shared spaces in the permanent generation") \ |
duke@435 | 3655 | \ |
duke@435 | 3656 | product(bool, ForceSharedSpaces, false, \ |
duke@435 | 3657 | "Require shared spaces in the permanent generation") \ |
duke@435 | 3658 | \ |
duke@435 | 3659 | product(bool, DumpSharedSpaces, false, \ |
duke@435 | 3660 | "Special mode: JVM reads a class list, loads classes, builds " \ |
duke@435 | 3661 | "shared spaces, and dumps the shared spaces to a file to be " \ |
duke@435 | 3662 | "used in future JVM runs.") \ |
duke@435 | 3663 | \ |
duke@435 | 3664 | product(bool, PrintSharedSpaces, false, \ |
duke@435 | 3665 | "Print usage of shared spaces") \ |
duke@435 | 3666 | \ |
duke@435 | 3667 | product(uintx, SharedDummyBlockSize, 512*M, \ |
duke@435 | 3668 | "Size of dummy block used to shift heap addresses (in bytes)") \ |
duke@435 | 3669 | \ |
iveresov@2230 | 3670 | product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(13*M), \ |
duke@435 | 3671 | "Size of read-write space in permanent generation (in bytes)") \ |
duke@435 | 3672 | \ |
jcoomes@1345 | 3673 | product(uintx, SharedReadOnlySize, 10*M, \ |
duke@435 | 3674 | "Size of read-only space in permanent generation (in bytes)") \ |
duke@435 | 3675 | \ |
coleenp@2549 | 3676 | product(uintx, SharedMiscDataSize, NOT_LP64(4*M) LP64_ONLY(5*M), \ |
duke@435 | 3677 | "Size of the shared data area adjacent to the heap (in bytes)") \ |
duke@435 | 3678 | \ |
duke@435 | 3679 | product(uintx, SharedMiscCodeSize, 4*M, \ |
duke@435 | 3680 | "Size of the shared code area adjacent to the heap (in bytes)") \ |
duke@435 | 3681 | \ |
duke@435 | 3682 | diagnostic(bool, SharedOptimizeColdStart, true, \ |
duke@435 | 3683 | "At dump time, order shared objects to achieve better " \ |
duke@435 | 3684 | "cold startup time.") \ |
duke@435 | 3685 | \ |
duke@435 | 3686 | develop(intx, SharedOptimizeColdStartPolicy, 2, \ |
duke@435 | 3687 | "Reordering policy for SharedOptimizeColdStart " \ |
duke@435 | 3688 | "0=favor classload-time locality, 1=balanced, " \ |
duke@435 | 3689 | "2=favor runtime locality") \ |
duke@435 | 3690 | \ |
duke@435 | 3691 | diagnostic(bool, SharedSkipVerify, false, \ |
duke@435 | 3692 | "Skip assert() and verify() which page-in unwanted shared " \ |
duke@435 | 3693 | "objects. ") \ |
duke@435 | 3694 | \ |
jrose@866 | 3695 | product(bool, AnonymousClasses, false, \ |
jrose@866 | 3696 | "support sun.misc.Unsafe.defineAnonymousClass") \ |
jrose@866 | 3697 | \ |
jrose@1340 | 3698 | experimental(bool, EnableMethodHandles, false, \ |
jrose@1145 | 3699 | "support method handles (true by default under JSR 292)") \ |
jrose@1145 | 3700 | \ |
jrose@1145 | 3701 | diagnostic(intx, MethodHandlePushLimit, 3, \ |
jrose@1145 | 3702 | "number of additional stack slots a method handle may push") \ |
jrose@1145 | 3703 | \ |
jrose@1145 | 3704 | develop(bool, TraceMethodHandles, false, \ |
jrose@1145 | 3705 | "trace internal method handle operations") \ |
jrose@1145 | 3706 | \ |
jrose@1145 | 3707 | diagnostic(bool, VerifyMethodHandles, trueInDebug, \ |
jrose@1145 | 3708 | "perform extra checks when constructing method handles") \ |
jrose@1145 | 3709 | \ |
jrose@1145 | 3710 | diagnostic(bool, OptimizeMethodHandles, true, \ |
jrose@1145 | 3711 | "when constructing method handles, try to improve them") \ |
jrose@1145 | 3712 | \ |
jrose@1608 | 3713 | experimental(bool, TrustFinalNonStaticFields, false, \ |
jrose@1608 | 3714 | "trust final non-static declarations for constant folding") \ |
jrose@1608 | 3715 | \ |
jrose@1340 | 3716 | experimental(bool, EnableInvokeDynamic, false, \ |
jrose@1161 | 3717 | "recognize the invokedynamic instruction") \ |
jrose@1161 | 3718 | \ |
jrose@2015 | 3719 | experimental(bool, AllowTransitionalJSR292, true, \ |
jrose@2015 | 3720 | "recognize pre-PFD formats of invokedynamic") \ |
jrose@2015 | 3721 | \ |
jrose@1161 | 3722 | develop(bool, TraceInvokeDynamic, false, \ |
jrose@1161 | 3723 | "trace internal invoke dynamic operations") \ |
jrose@1161 | 3724 | \ |
duke@435 | 3725 | diagnostic(bool, PauseAtStartup, false, \ |
duke@435 | 3726 | "Causes the VM to pause at startup time and wait for the pause " \ |
duke@435 | 3727 | "file to be removed (default: ./vm.paused.<pid>)") \ |
duke@435 | 3728 | \ |
duke@435 | 3729 | diagnostic(ccstr, PauseAtStartupFile, NULL, \ |
duke@435 | 3730 | "The file to create and for whose removal to await when pausing " \ |
duke@435 | 3731 | "at startup. (default: ./vm.paused.<pid>)") \ |
duke@435 | 3732 | \ |
sla@2584 | 3733 | diagnostic(bool, PauseAtExit, false, \ |
sla@2584 | 3734 | "Pause and wait for keypress on exit if a debugger is attached") \ |
sla@2584 | 3735 | \ |
duke@435 | 3736 | product(bool, ExtendedDTraceProbes, false, \ |
duke@435 | 3737 | "Enable performance-impacting dtrace probes") \ |
duke@435 | 3738 | \ |
duke@435 | 3739 | product(bool, DTraceMethodProbes, false, \ |
duke@435 | 3740 | "Enable dtrace probes for method-entry and method-exit") \ |
duke@435 | 3741 | \ |
duke@435 | 3742 | product(bool, DTraceAllocProbes, false, \ |
duke@435 | 3743 | "Enable dtrace probes for object allocation") \ |
duke@435 | 3744 | \ |
duke@435 | 3745 | product(bool, DTraceMonitorProbes, false, \ |
duke@435 | 3746 | "Enable dtrace probes for monitor events") \ |
duke@435 | 3747 | \ |
duke@435 | 3748 | product(bool, RelaxAccessControlCheck, false, \ |
duke@435 | 3749 | "Relax the access control checks in the verifier") \ |
duke@435 | 3750 | \ |
kamg@551 | 3751 | diagnostic(bool, PrintDTraceDOF, false, \ |
kamg@551 | 3752 | "Print the DTrace DOF passed to the system for JSDT probes") \ |
kamg@551 | 3753 | \ |
xlu@884 | 3754 | product(bool, UseVMInterruptibleIO, false, \ |
duke@435 | 3755 | "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
xlu@884 | 3756 | "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
xlu@884 | 3757 | " of this flag is true for JDK 6 and earliers") |
duke@435 | 3758 | |
duke@435 | 3759 | /* |
duke@435 | 3760 | * Macros for factoring of globals |
duke@435 | 3761 | */ |
duke@435 | 3762 | |
duke@435 | 3763 | // Interface macros |
duke@435 | 3764 | #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3765 | #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; |
duke@435 | 3766 | #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; |
ysr@785 | 3767 | #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3768 | #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3769 | #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3770 | #ifdef PRODUCT |
duke@435 | 3771 | #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; |
duke@435 | 3772 | #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; |
duke@435 | 3773 | #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) |
duke@435 | 3774 | #else |
duke@435 | 3775 | #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3776 | #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; |
duke@435 | 3777 | #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3778 | #endif |
coleenp@548 | 3779 | // Special LP64 flags, product only needed for now. |
coleenp@548 | 3780 | #ifdef _LP64 |
coleenp@548 | 3781 | #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
coleenp@548 | 3782 | #else |
coleenp@548 | 3783 | #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
coleenp@548 | 3784 | #endif // _LP64 |
duke@435 | 3785 | |
duke@435 | 3786 | // Implementation macros |
duke@435 | 3787 | #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3788 | #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; |
duke@435 | 3789 | #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; |
ysr@785 | 3790 | #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3791 | #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3792 | #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3793 | #ifdef PRODUCT |
duke@435 | 3794 | #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ |
duke@435 | 3795 | #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ |
duke@435 | 3796 | #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) |
duke@435 | 3797 | #else |
duke@435 | 3798 | #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3799 | #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; |
duke@435 | 3800 | #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3801 | #endif |
coleenp@548 | 3802 | #ifdef _LP64 |
coleenp@548 | 3803 | #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
coleenp@548 | 3804 | #else |
coleenp@548 | 3805 | #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
coleenp@548 | 3806 | #endif // _LP64 |
duke@435 | 3807 | |
ysr@785 | 3808 | RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG, DECLARE_LP64_PRODUCT_FLAG) |
duke@435 | 3809 | |
duke@435 | 3810 | RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) |
stefank@2314 | 3811 | |
stefank@2314 | 3812 | #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |