Sun, 02 Mar 2008 16:10:12 -0800
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
Summary: Default values set by cms ergonomics are set with FLAG_SET_DEFAULT so down stream the values look like the default values and affect how later parameters are set. Set these values with FLAG_SET_ERGO instead and adjust how later parameters are interpreted.
Reviewed-by: iveresov, apetrusenko, pbk, ysr
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 1997-2007 Sun Microsystems, Inc. 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 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #if !defined(COMPILER1) && !defined(COMPILER2) |
duke@435 | 26 | define_pd_global(bool, BackgroundCompilation, false); |
duke@435 | 27 | define_pd_global(bool, UseTLAB, false); |
duke@435 | 28 | define_pd_global(bool, CICompileOSR, false); |
duke@435 | 29 | define_pd_global(bool, UseTypeProfile, false); |
duke@435 | 30 | define_pd_global(bool, UseOnStackReplacement, false); |
duke@435 | 31 | define_pd_global(bool, InlineIntrinsics, false); |
duke@435 | 32 | define_pd_global(bool, PreferInterpreterNativeStubs, true); |
duke@435 | 33 | define_pd_global(bool, ProfileInterpreter, false); |
duke@435 | 34 | define_pd_global(bool, ProfileTraps, false); |
duke@435 | 35 | define_pd_global(bool, TieredCompilation, false); |
duke@435 | 36 | |
duke@435 | 37 | define_pd_global(intx, CompileThreshold, 0); |
duke@435 | 38 | define_pd_global(intx, Tier2CompileThreshold, 0); |
duke@435 | 39 | define_pd_global(intx, Tier3CompileThreshold, 0); |
duke@435 | 40 | define_pd_global(intx, Tier4CompileThreshold, 0); |
duke@435 | 41 | |
duke@435 | 42 | define_pd_global(intx, BackEdgeThreshold, 0); |
duke@435 | 43 | define_pd_global(intx, Tier2BackEdgeThreshold, 0); |
duke@435 | 44 | define_pd_global(intx, Tier3BackEdgeThreshold, 0); |
duke@435 | 45 | define_pd_global(intx, Tier4BackEdgeThreshold, 0); |
duke@435 | 46 | |
duke@435 | 47 | define_pd_global(intx, OnStackReplacePercentage, 0); |
duke@435 | 48 | define_pd_global(bool, ResizeTLAB, false); |
duke@435 | 49 | define_pd_global(intx, FreqInlineSize, 0); |
duke@435 | 50 | define_pd_global(intx, NewSizeThreadIncrease, 4*K); |
duke@435 | 51 | define_pd_global(intx, NewRatio, 4); |
duke@435 | 52 | define_pd_global(intx, InlineClassNatives, true); |
duke@435 | 53 | define_pd_global(intx, InlineUnsafeOps, true); |
duke@435 | 54 | define_pd_global(intx, InitialCodeCacheSize, 160*K); |
duke@435 | 55 | define_pd_global(intx, ReservedCodeCacheSize, 32*M); |
duke@435 | 56 | define_pd_global(intx, CodeCacheExpansionSize, 32*K); |
duke@435 | 57 | define_pd_global(intx, CodeCacheMinBlockLength, 1); |
duke@435 | 58 | define_pd_global(uintx,PermSize, ScaleForWordSize(4*M)); |
duke@435 | 59 | define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M)); |
duke@435 | 60 | define_pd_global(bool, NeverActAsServerClassMachine, true); |
duke@435 | 61 | define_pd_global(uintx, DefaultMaxRAM, 1*G); |
duke@435 | 62 | #define CI_COMPILER_COUNT 0 |
duke@435 | 63 | #else |
duke@435 | 64 | |
duke@435 | 65 | #ifdef COMPILER2 |
duke@435 | 66 | #define CI_COMPILER_COUNT 2 |
duke@435 | 67 | #else |
duke@435 | 68 | #define CI_COMPILER_COUNT 1 |
duke@435 | 69 | #endif // COMPILER2 |
duke@435 | 70 | |
duke@435 | 71 | #endif // no compilers |
duke@435 | 72 | |
duke@435 | 73 | |
duke@435 | 74 | // string type aliases used only in this file |
duke@435 | 75 | typedef const char* ccstr; |
duke@435 | 76 | typedef const char* ccstrlist; // represents string arguments which accumulate |
duke@435 | 77 | |
duke@435 | 78 | enum FlagValueOrigin { |
duke@435 | 79 | DEFAULT = 0, |
duke@435 | 80 | COMMAND_LINE = 1, |
duke@435 | 81 | ENVIRON_VAR = 2, |
duke@435 | 82 | CONFIG_FILE = 3, |
duke@435 | 83 | MANAGEMENT = 4, |
duke@435 | 84 | ERGONOMIC = 5, |
duke@435 | 85 | ATTACH_ON_DEMAND = 6, |
duke@435 | 86 | INTERNAL = 99 |
duke@435 | 87 | }; |
duke@435 | 88 | |
duke@435 | 89 | struct Flag { |
duke@435 | 90 | const char *type; |
duke@435 | 91 | const char *name; |
duke@435 | 92 | void* addr; |
duke@435 | 93 | const char *kind; |
duke@435 | 94 | FlagValueOrigin origin; |
duke@435 | 95 | |
duke@435 | 96 | // points to all Flags static array |
duke@435 | 97 | static Flag *flags; |
duke@435 | 98 | |
duke@435 | 99 | // number of flags |
duke@435 | 100 | static size_t numFlags; |
duke@435 | 101 | |
duke@435 | 102 | static Flag* find_flag(char* name, size_t length); |
duke@435 | 103 | |
duke@435 | 104 | bool is_bool() const { return strcmp(type, "bool") == 0; } |
duke@435 | 105 | bool get_bool() const { return *((bool*) addr); } |
duke@435 | 106 | void set_bool(bool value) { *((bool*) addr) = value; } |
duke@435 | 107 | |
duke@435 | 108 | bool is_intx() const { return strcmp(type, "intx") == 0; } |
duke@435 | 109 | intx get_intx() const { return *((intx*) addr); } |
duke@435 | 110 | void set_intx(intx value) { *((intx*) addr) = value; } |
duke@435 | 111 | |
duke@435 | 112 | bool is_uintx() const { return strcmp(type, "uintx") == 0; } |
duke@435 | 113 | uintx get_uintx() const { return *((uintx*) addr); } |
duke@435 | 114 | void set_uintx(uintx value) { *((uintx*) addr) = value; } |
duke@435 | 115 | |
duke@435 | 116 | bool is_double() const { return strcmp(type, "double") == 0; } |
duke@435 | 117 | double get_double() const { return *((double*) addr); } |
duke@435 | 118 | void set_double(double value) { *((double*) addr) = value; } |
duke@435 | 119 | |
duke@435 | 120 | bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; } |
duke@435 | 121 | bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; } |
duke@435 | 122 | ccstr get_ccstr() const { return *((ccstr*) addr); } |
duke@435 | 123 | void set_ccstr(ccstr value) { *((ccstr*) addr) = value; } |
duke@435 | 124 | |
duke@435 | 125 | bool is_unlocker() const; |
duke@435 | 126 | bool is_unlocked() const; |
duke@435 | 127 | bool is_writeable() const; |
duke@435 | 128 | bool is_external() const; |
duke@435 | 129 | |
duke@435 | 130 | void print_on(outputStream* st); |
duke@435 | 131 | void print_as_flag(outputStream* st); |
duke@435 | 132 | }; |
duke@435 | 133 | |
duke@435 | 134 | // debug flags control various aspects of the VM and are global accessible |
duke@435 | 135 | |
duke@435 | 136 | // use FlagSetting to temporarily change some debug flag |
duke@435 | 137 | // e.g. FlagSetting fs(DebugThisAndThat, true); |
duke@435 | 138 | // restored to previous value upon leaving scope |
duke@435 | 139 | class FlagSetting { |
duke@435 | 140 | bool val; |
duke@435 | 141 | bool* flag; |
duke@435 | 142 | public: |
duke@435 | 143 | FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } |
duke@435 | 144 | ~FlagSetting() { *flag = val; } |
duke@435 | 145 | }; |
duke@435 | 146 | |
duke@435 | 147 | |
duke@435 | 148 | class CounterSetting { |
duke@435 | 149 | intx* counter; |
duke@435 | 150 | public: |
duke@435 | 151 | CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } |
duke@435 | 152 | ~CounterSetting() { (*counter)--; } |
duke@435 | 153 | }; |
duke@435 | 154 | |
duke@435 | 155 | |
duke@435 | 156 | class IntFlagSetting { |
duke@435 | 157 | intx val; |
duke@435 | 158 | intx* flag; |
duke@435 | 159 | public: |
duke@435 | 160 | IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; } |
duke@435 | 161 | ~IntFlagSetting() { *flag = val; } |
duke@435 | 162 | }; |
duke@435 | 163 | |
duke@435 | 164 | |
duke@435 | 165 | class DoubleFlagSetting { |
duke@435 | 166 | double val; |
duke@435 | 167 | double* flag; |
duke@435 | 168 | public: |
duke@435 | 169 | DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } |
duke@435 | 170 | ~DoubleFlagSetting() { *flag = val; } |
duke@435 | 171 | }; |
duke@435 | 172 | |
duke@435 | 173 | |
duke@435 | 174 | class CommandLineFlags { |
duke@435 | 175 | public: |
duke@435 | 176 | static bool boolAt(char* name, size_t len, bool* value); |
duke@435 | 177 | static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } |
duke@435 | 178 | static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin); |
duke@435 | 179 | static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); } |
duke@435 | 180 | |
duke@435 | 181 | static bool intxAt(char* name, size_t len, intx* value); |
duke@435 | 182 | static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } |
duke@435 | 183 | static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin); |
duke@435 | 184 | static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); } |
duke@435 | 185 | |
duke@435 | 186 | static bool uintxAt(char* name, size_t len, uintx* value); |
duke@435 | 187 | static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } |
duke@435 | 188 | static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin); |
duke@435 | 189 | static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); } |
duke@435 | 190 | |
duke@435 | 191 | static bool doubleAt(char* name, size_t len, double* value); |
duke@435 | 192 | static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } |
duke@435 | 193 | static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin); |
duke@435 | 194 | static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); } |
duke@435 | 195 | |
duke@435 | 196 | static bool ccstrAt(char* name, size_t len, ccstr* value); |
duke@435 | 197 | static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } |
duke@435 | 198 | static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin); |
duke@435 | 199 | static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); } |
duke@435 | 200 | |
duke@435 | 201 | // Returns false if name is not a command line flag. |
duke@435 | 202 | static bool wasSetOnCmdline(const char* name, bool* value); |
duke@435 | 203 | static void printSetFlags(); |
duke@435 | 204 | |
duke@435 | 205 | static void printFlags() PRODUCT_RETURN; |
duke@435 | 206 | |
duke@435 | 207 | static void verify() PRODUCT_RETURN; |
duke@435 | 208 | }; |
duke@435 | 209 | |
duke@435 | 210 | // use this for flags that are true by default in the debug version but |
duke@435 | 211 | // false in the optimized version, and vice versa |
duke@435 | 212 | #ifdef ASSERT |
duke@435 | 213 | #define trueInDebug true |
duke@435 | 214 | #define falseInDebug false |
duke@435 | 215 | #else |
duke@435 | 216 | #define trueInDebug false |
duke@435 | 217 | #define falseInDebug true |
duke@435 | 218 | #endif |
duke@435 | 219 | |
duke@435 | 220 | // use this for flags that are true per default in the product build |
duke@435 | 221 | // but false in development builds, and vice versa |
duke@435 | 222 | #ifdef PRODUCT |
duke@435 | 223 | #define trueInProduct true |
duke@435 | 224 | #define falseInProduct false |
duke@435 | 225 | #else |
duke@435 | 226 | #define trueInProduct false |
duke@435 | 227 | #define falseInProduct true |
duke@435 | 228 | #endif |
duke@435 | 229 | |
duke@435 | 230 | // use this for flags that are true per default in the tiered build |
duke@435 | 231 | // but false in non-tiered builds, and vice versa |
duke@435 | 232 | #ifdef TIERED |
duke@435 | 233 | #define trueInTiered true |
duke@435 | 234 | #define falseInTiered false |
duke@435 | 235 | #else |
duke@435 | 236 | #define trueInTiered false |
duke@435 | 237 | #define falseInTiered true |
duke@435 | 238 | #endif |
duke@435 | 239 | |
duke@435 | 240 | |
duke@435 | 241 | // develop flags are settable / visible only during development and are constant in the PRODUCT version |
duke@435 | 242 | // product flags are always settable / visible |
duke@435 | 243 | // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version |
duke@435 | 244 | |
duke@435 | 245 | // A flag must be declared with one of the following types: |
duke@435 | 246 | // bool, intx, uintx, ccstr. |
duke@435 | 247 | // The type "ccstr" is an alias for "const char*" and is used |
duke@435 | 248 | // only in this file, because the macrology requires single-token type names. |
duke@435 | 249 | |
duke@435 | 250 | // Note: Diagnostic options not meant for VM tuning or for product modes. |
duke@435 | 251 | // They are to be used for VM quality assurance or field diagnosis |
duke@435 | 252 | // of VM bugs. They are hidden so that users will not be encouraged to |
duke@435 | 253 | // try them as if they were VM ordinary execution options. However, they |
duke@435 | 254 | // are available in the product version of the VM. Under instruction |
duke@435 | 255 | // from support engineers, VM customers can turn them on to collect |
duke@435 | 256 | // diagnostic information about VM problems. To use a VM diagnostic |
duke@435 | 257 | // option, you must first specify +UnlockDiagnosticVMOptions. |
duke@435 | 258 | // (This master switch also affects the behavior of -Xprintflags.) |
duke@435 | 259 | |
duke@435 | 260 | // manageable flags are writeable external product flags. |
duke@435 | 261 | // They are dynamically writeable through the JDK management interface |
duke@435 | 262 | // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. |
duke@435 | 263 | // These flags are external exported interface (see CCC). The list of |
duke@435 | 264 | // manageable flags can be queried programmatically through the management |
duke@435 | 265 | // interface. |
duke@435 | 266 | // |
duke@435 | 267 | // A flag can be made as "manageable" only if |
duke@435 | 268 | // - the flag is defined in a CCC as an external exported interface. |
duke@435 | 269 | // - the VM implementation supports dynamic setting of the flag. |
duke@435 | 270 | // This implies that the VM must *always* query the flag variable |
duke@435 | 271 | // and not reuse state related to the flag state at any given time. |
duke@435 | 272 | // - you want the flag to be queried programmatically by the customers. |
duke@435 | 273 | // |
duke@435 | 274 | // product_rw flags are writeable internal product flags. |
duke@435 | 275 | // They are like "manageable" flags but for internal/private use. |
duke@435 | 276 | // The list of product_rw flags are internal/private flags which |
duke@435 | 277 | // may be changed/removed in a future release. It can be set |
duke@435 | 278 | // through the management interface to get/set value |
duke@435 | 279 | // when the name of flag is supplied. |
duke@435 | 280 | // |
duke@435 | 281 | // A flag can be made as "product_rw" only if |
duke@435 | 282 | // - the VM implementation supports dynamic setting of the flag. |
duke@435 | 283 | // This implies that the VM must *always* query the flag variable |
duke@435 | 284 | // and not reuse state related to the flag state at any given time. |
duke@435 | 285 | // |
duke@435 | 286 | // Note that when there is a need to support develop flags to be writeable, |
duke@435 | 287 | // it can be done in the same way as product_rw. |
duke@435 | 288 | |
duke@435 | 289 | #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct, manageable, product_rw) \ |
duke@435 | 290 | \ |
duke@435 | 291 | /* UseMembar is theoretically a temp flag used for memory barrier \ |
duke@435 | 292 | * removal testing. It was supposed to be removed before FCS but has \ |
duke@435 | 293 | * been re-added (see 6401008) */ \ |
duke@435 | 294 | product(bool, UseMembar, false, \ |
duke@435 | 295 | "(Unstable) Issues membars on thread state transitions") \ |
duke@435 | 296 | \ |
duke@435 | 297 | product(bool, PrintCommandLineFlags, false, \ |
duke@435 | 298 | "Prints flags that appeared on the command line") \ |
duke@435 | 299 | \ |
duke@435 | 300 | diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
duke@435 | 301 | "Enable processing of flags relating to field diagnostics") \ |
duke@435 | 302 | \ |
duke@435 | 303 | product(bool, JavaMonitorsInStackTrace, true, \ |
duke@435 | 304 | "Print info. about Java monitor locks when the stacks are dumped")\ |
duke@435 | 305 | \ |
duke@435 | 306 | product_pd(bool, UseLargePages, \ |
duke@435 | 307 | "Use large page memory") \ |
duke@435 | 308 | \ |
duke@435 | 309 | develop(bool, TracePageSizes, false, \ |
duke@435 | 310 | "Trace page size selection and usage.") \ |
duke@435 | 311 | \ |
duke@435 | 312 | product(bool, UseNUMA, false, \ |
duke@435 | 313 | "Use NUMA if available") \ |
duke@435 | 314 | \ |
duke@435 | 315 | product(intx, NUMAChunkResizeWeight, 20, \ |
duke@435 | 316 | "Percentage (0-100) used to weight the current sample when " \ |
duke@435 | 317 | "computing exponentially decaying average for " \ |
duke@435 | 318 | "AdaptiveNUMAChunkSizing") \ |
duke@435 | 319 | \ |
duke@435 | 320 | product(intx, NUMASpaceResizeRate, 1*G, \ |
duke@435 | 321 | "Do not reallocate more that this amount per collection") \ |
duke@435 | 322 | \ |
duke@435 | 323 | product(bool, UseAdaptiveNUMAChunkSizing, true, \ |
duke@435 | 324 | "Enable adaptive chunk sizing for NUMA") \ |
duke@435 | 325 | \ |
duke@435 | 326 | product(bool, NUMAStats, false, \ |
duke@435 | 327 | "Print NUMA stats in detailed heap information") \ |
duke@435 | 328 | \ |
duke@435 | 329 | product(intx, NUMAPageScanRate, 256, \ |
duke@435 | 330 | "Maximum number of pages to include in the page scan procedure") \ |
duke@435 | 331 | \ |
duke@435 | 332 | product_pd(bool, NeedsDeoptSuspend, \ |
duke@435 | 333 | "True for register window machines (sparc/ia64)") \ |
duke@435 | 334 | \ |
duke@435 | 335 | product(intx, UseSSE, 99, \ |
duke@435 | 336 | "Highest supported SSE instructions set on x86/x64") \ |
duke@435 | 337 | \ |
duke@435 | 338 | product(uintx, LargePageSizeInBytes, 0, \ |
duke@435 | 339 | "Large page size (0 to let VM choose the page size") \ |
duke@435 | 340 | \ |
duke@435 | 341 | product(uintx, LargePageHeapSizeThreshold, 128*M, \ |
duke@435 | 342 | "Use large pages if max heap is at least this big") \ |
duke@435 | 343 | \ |
duke@435 | 344 | product(bool, ForceTimeHighResolution, false, \ |
duke@435 | 345 | "Using high time resolution(For Win32 only)") \ |
duke@435 | 346 | \ |
duke@435 | 347 | product(bool, CacheTimeMillis, false, \ |
duke@435 | 348 | "Cache os::javaTimeMillis with CacheTimeMillisGranularity") \ |
duke@435 | 349 | \ |
duke@435 | 350 | diagnostic(uintx, CacheTimeMillisGranularity, 50, \ |
duke@435 | 351 | "Granularity for CacheTimeMillis") \ |
duke@435 | 352 | \ |
duke@435 | 353 | develop(bool, TraceItables, false, \ |
duke@435 | 354 | "Trace initialization and use of itables") \ |
duke@435 | 355 | \ |
duke@435 | 356 | develop(bool, TracePcPatching, false, \ |
duke@435 | 357 | "Trace usage of frame::patch_pc") \ |
duke@435 | 358 | \ |
duke@435 | 359 | develop(bool, TraceJumps, false, \ |
duke@435 | 360 | "Trace assembly jumps in thread ring buffer") \ |
duke@435 | 361 | \ |
duke@435 | 362 | develop(bool, TraceRelocator, false, \ |
duke@435 | 363 | "Trace the bytecode relocator") \ |
duke@435 | 364 | \ |
duke@435 | 365 | develop(bool, TraceLongCompiles, false, \ |
duke@435 | 366 | "Print out every time compilation is longer than " \ |
duke@435 | 367 | "a given threashold") \ |
duke@435 | 368 | \ |
duke@435 | 369 | develop(bool, SafepointALot, false, \ |
duke@435 | 370 | "Generates a lot of safepoints. Works with " \ |
duke@435 | 371 | "GuaranteedSafepointInterval") \ |
duke@435 | 372 | \ |
duke@435 | 373 | product_pd(bool, BackgroundCompilation, \ |
duke@435 | 374 | "A thread requesting compilation is not blocked during " \ |
duke@435 | 375 | "compilation") \ |
duke@435 | 376 | \ |
duke@435 | 377 | product(bool, PrintVMQWaitTime, false, \ |
duke@435 | 378 | "Prints out the waiting time in VM operation queue") \ |
duke@435 | 379 | \ |
duke@435 | 380 | develop(bool, BailoutToInterpreterForThrows, false, \ |
duke@435 | 381 | "Compiled methods which throws/catches exceptions will be " \ |
duke@435 | 382 | "deopt and intp.") \ |
duke@435 | 383 | \ |
duke@435 | 384 | develop(bool, NoYieldsInMicrolock, false, \ |
duke@435 | 385 | "Disable yields in microlock") \ |
duke@435 | 386 | \ |
duke@435 | 387 | develop(bool, TraceOopMapGeneration, false, \ |
duke@435 | 388 | "Shows oopmap generation") \ |
duke@435 | 389 | \ |
duke@435 | 390 | product(bool, MethodFlushing, true, \ |
duke@435 | 391 | "Reclamation of zombie and not-entrant methods") \ |
duke@435 | 392 | \ |
duke@435 | 393 | develop(bool, VerifyStack, false, \ |
duke@435 | 394 | "Verify stack of each thread when it is entering a runtime call") \ |
duke@435 | 395 | \ |
duke@435 | 396 | develop(bool, ForceUnreachable, false, \ |
duke@435 | 397 | "(amd64) Make all non code cache addresses to be unreachable with rip-rel forcing use of 64bit literal fixups") \ |
duke@435 | 398 | \ |
duke@435 | 399 | notproduct(bool, StressDerivedPointers, false, \ |
duke@435 | 400 | "Force scavenge when a derived pointers is detected on stack " \ |
duke@435 | 401 | "after rtm call") \ |
duke@435 | 402 | \ |
duke@435 | 403 | develop(bool, TraceDerivedPointers, false, \ |
duke@435 | 404 | "Trace traversal of derived pointers on stack") \ |
duke@435 | 405 | \ |
duke@435 | 406 | notproduct(bool, TraceCodeBlobStacks, false, \ |
duke@435 | 407 | "Trace stack-walk of codeblobs") \ |
duke@435 | 408 | \ |
duke@435 | 409 | product(bool, PrintJNIResolving, false, \ |
duke@435 | 410 | "Used to implement -v:jni") \ |
duke@435 | 411 | \ |
duke@435 | 412 | notproduct(bool, PrintRewrites, false, \ |
duke@435 | 413 | "Print methods that are being rewritten") \ |
duke@435 | 414 | \ |
duke@435 | 415 | product(bool, UseInlineCaches, true, \ |
duke@435 | 416 | "Use Inline Caches for virtual calls ") \ |
duke@435 | 417 | \ |
duke@435 | 418 | develop(bool, InlineArrayCopy, true, \ |
duke@435 | 419 | "inline arraycopy native that is known to be part of " \ |
duke@435 | 420 | "base library DLL") \ |
duke@435 | 421 | \ |
duke@435 | 422 | develop(bool, InlineObjectHash, true, \ |
duke@435 | 423 | "inline Object::hashCode() native that is known to be part " \ |
duke@435 | 424 | "of base library DLL") \ |
duke@435 | 425 | \ |
duke@435 | 426 | develop(bool, InlineObjectCopy, true, \ |
duke@435 | 427 | "inline Object.clone and Arrays.copyOf[Range] intrinsics") \ |
duke@435 | 428 | \ |
duke@435 | 429 | develop(bool, InlineNatives, true, \ |
duke@435 | 430 | "inline natives that are known to be part of base library DLL") \ |
duke@435 | 431 | \ |
duke@435 | 432 | develop(bool, InlineMathNatives, true, \ |
duke@435 | 433 | "inline SinD, CosD, etc.") \ |
duke@435 | 434 | \ |
duke@435 | 435 | develop(bool, InlineClassNatives, true, \ |
duke@435 | 436 | "inline Class.isInstance, etc") \ |
duke@435 | 437 | \ |
duke@435 | 438 | develop(bool, InlineAtomicLong, true, \ |
duke@435 | 439 | "inline sun.misc.AtomicLong") \ |
duke@435 | 440 | \ |
duke@435 | 441 | develop(bool, InlineThreadNatives, true, \ |
duke@435 | 442 | "inline Thread.currentThread, etc") \ |
duke@435 | 443 | \ |
duke@435 | 444 | develop(bool, InlineReflectionGetCallerClass, true, \ |
duke@435 | 445 | "inline sun.reflect.Reflection.getCallerClass(), known to be part "\ |
duke@435 | 446 | "of base library DLL") \ |
duke@435 | 447 | \ |
duke@435 | 448 | develop(bool, InlineUnsafeOps, true, \ |
duke@435 | 449 | "inline memory ops (native methods) from sun.misc.Unsafe") \ |
duke@435 | 450 | \ |
duke@435 | 451 | develop(bool, ConvertCmpD2CmpF, true, \ |
duke@435 | 452 | "Convert cmpD to cmpF when one input is constant in float range") \ |
duke@435 | 453 | \ |
duke@435 | 454 | develop(bool, ConvertFloat2IntClipping, true, \ |
duke@435 | 455 | "Convert float2int clipping idiom to integer clipping") \ |
duke@435 | 456 | \ |
duke@435 | 457 | develop(bool, SpecialStringCompareTo, true, \ |
duke@435 | 458 | "special version of string compareTo") \ |
duke@435 | 459 | \ |
duke@435 | 460 | develop(bool, SpecialStringIndexOf, true, \ |
duke@435 | 461 | "special version of string indexOf") \ |
duke@435 | 462 | \ |
duke@435 | 463 | develop(bool, TraceCallFixup, false, \ |
duke@435 | 464 | "traces all call fixups") \ |
duke@435 | 465 | \ |
duke@435 | 466 | develop(bool, DeoptimizeALot, false, \ |
duke@435 | 467 | "deoptimize at every exit from the runtime system") \ |
duke@435 | 468 | \ |
duke@435 | 469 | develop(ccstrlist, DeoptimizeOnlyAt, "", \ |
duke@435 | 470 | "a comma separated list of bcis to deoptimize at") \ |
duke@435 | 471 | \ |
duke@435 | 472 | product(bool, DeoptimizeRandom, false, \ |
duke@435 | 473 | "deoptimize random frames on random exit from the runtime system")\ |
duke@435 | 474 | \ |
duke@435 | 475 | notproduct(bool, ZombieALot, false, \ |
duke@435 | 476 | "creates zombies (non-entrant) at exit from the runt. system") \ |
duke@435 | 477 | \ |
duke@435 | 478 | notproduct(bool, WalkStackALot, false, \ |
duke@435 | 479 | "trace stack (no print) at every exit from the runtime system") \ |
duke@435 | 480 | \ |
duke@435 | 481 | develop(bool, Debugging, false, \ |
duke@435 | 482 | "set when executing debug methods in debug.ccp " \ |
duke@435 | 483 | "(to prevent triggering assertions)") \ |
duke@435 | 484 | \ |
duke@435 | 485 | notproduct(bool, StrictSafepointChecks, trueInDebug, \ |
duke@435 | 486 | "Enable strict checks that safepoints cannot happen for threads " \ |
duke@435 | 487 | "that used No_Safepoint_Verifier") \ |
duke@435 | 488 | \ |
duke@435 | 489 | notproduct(bool, VerifyLastFrame, false, \ |
duke@435 | 490 | "Verify oops on last frame on entry to VM") \ |
duke@435 | 491 | \ |
duke@435 | 492 | develop(bool, TraceHandleAllocation, false, \ |
duke@435 | 493 | "Prints out warnings when suspicious many handles are allocated") \ |
duke@435 | 494 | \ |
duke@435 | 495 | product(bool, UseCompilerSafepoints, true, \ |
duke@435 | 496 | "Stop at safepoints in compiled code") \ |
duke@435 | 497 | \ |
duke@435 | 498 | product(bool, UseSplitVerifier, true, \ |
duke@435 | 499 | "use split verifier with StackMapTable attributes") \ |
duke@435 | 500 | \ |
duke@435 | 501 | product(bool, FailOverToOldVerifier, true, \ |
duke@435 | 502 | "fail over to old verifier when split verifier fails") \ |
duke@435 | 503 | \ |
duke@435 | 504 | develop(bool, ShowSafepointMsgs, false, \ |
duke@435 | 505 | "Show msg. about safepoint synch.") \ |
duke@435 | 506 | \ |
duke@435 | 507 | product(bool, SafepointTimeout, false, \ |
duke@435 | 508 | "Time out and warn or fail after SafepointTimeoutDelay " \ |
duke@435 | 509 | "milliseconds if failed to reach safepoint") \ |
duke@435 | 510 | \ |
duke@435 | 511 | develop(bool, DieOnSafepointTimeout, false, \ |
duke@435 | 512 | "Die upon failure to reach safepoint (see SafepointTimeout)") \ |
duke@435 | 513 | \ |
duke@435 | 514 | /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ |
duke@435 | 515 | /* typically, at most a few retries are needed */ \ |
duke@435 | 516 | product(intx, SuspendRetryCount, 50, \ |
duke@435 | 517 | "Maximum retry count for an external suspend request") \ |
duke@435 | 518 | \ |
duke@435 | 519 | product(intx, SuspendRetryDelay, 5, \ |
duke@435 | 520 | "Milliseconds to delay per retry (* current_retry_count)") \ |
duke@435 | 521 | \ |
duke@435 | 522 | product(bool, AssertOnSuspendWaitFailure, false, \ |
duke@435 | 523 | "Assert/Guarantee on external suspend wait failure") \ |
duke@435 | 524 | \ |
duke@435 | 525 | product(bool, TraceSuspendWaitFailures, false, \ |
duke@435 | 526 | "Trace external suspend wait failures") \ |
duke@435 | 527 | \ |
duke@435 | 528 | product(bool, MaxFDLimit, true, \ |
duke@435 | 529 | "Bump the number of file descriptors to max in solaris.") \ |
duke@435 | 530 | \ |
duke@435 | 531 | notproduct(bool, LogEvents, trueInDebug, \ |
duke@435 | 532 | "Enable Event log") \ |
duke@435 | 533 | \ |
duke@435 | 534 | product(bool, BytecodeVerificationRemote, true, \ |
duke@435 | 535 | "Enables the Java bytecode verifier for remote classes") \ |
duke@435 | 536 | \ |
duke@435 | 537 | product(bool, BytecodeVerificationLocal, false, \ |
duke@435 | 538 | "Enables the Java bytecode verifier for local classes") \ |
duke@435 | 539 | \ |
duke@435 | 540 | develop(bool, ForceFloatExceptions, trueInDebug, \ |
duke@435 | 541 | "Force exceptions on FP stack under/overflow") \ |
duke@435 | 542 | \ |
duke@435 | 543 | develop(bool, SoftMatchFailure, trueInProduct, \ |
duke@435 | 544 | "If the DFA fails to match a node, print a message and bail out") \ |
duke@435 | 545 | \ |
duke@435 | 546 | develop(bool, VerifyStackAtCalls, false, \ |
duke@435 | 547 | "Verify that the stack pointer is unchanged after calls") \ |
duke@435 | 548 | \ |
duke@435 | 549 | develop(bool, TraceJavaAssertions, false, \ |
duke@435 | 550 | "Trace java language assertions") \ |
duke@435 | 551 | \ |
duke@435 | 552 | notproduct(bool, CheckAssertionStatusDirectives, false, \ |
duke@435 | 553 | "temporary - see javaClasses.cpp") \ |
duke@435 | 554 | \ |
duke@435 | 555 | notproduct(bool, PrintMallocFree, false, \ |
duke@435 | 556 | "Trace calls to C heap malloc/free allocation") \ |
duke@435 | 557 | \ |
duke@435 | 558 | notproduct(bool, PrintOopAddress, false, \ |
duke@435 | 559 | "Always print the location of the oop") \ |
duke@435 | 560 | \ |
duke@435 | 561 | notproduct(bool, VerifyCodeCacheOften, false, \ |
duke@435 | 562 | "Verify compiled-code cache often") \ |
duke@435 | 563 | \ |
duke@435 | 564 | develop(bool, ZapDeadCompiledLocals, false, \ |
duke@435 | 565 | "Zap dead locals in compiler frames") \ |
duke@435 | 566 | \ |
duke@435 | 567 | notproduct(bool, ZapDeadLocalsOld, false, \ |
duke@435 | 568 | "Zap dead locals (old version, zaps all frames when " \ |
duke@435 | 569 | "entering the VM") \ |
duke@435 | 570 | \ |
duke@435 | 571 | notproduct(bool, CheckOopishValues, false, \ |
duke@435 | 572 | "Warn if value contains oop ( requires ZapDeadLocals)") \ |
duke@435 | 573 | \ |
duke@435 | 574 | develop(bool, UseMallocOnly, false, \ |
duke@435 | 575 | "use only malloc/free for allocation (no resource area/arena)") \ |
duke@435 | 576 | \ |
duke@435 | 577 | develop(bool, PrintMalloc, false, \ |
duke@435 | 578 | "print all malloc/free calls") \ |
duke@435 | 579 | \ |
duke@435 | 580 | develop(bool, ZapResourceArea, trueInDebug, \ |
duke@435 | 581 | "Zap freed resource/arena space with 0xABABABAB") \ |
duke@435 | 582 | \ |
duke@435 | 583 | notproduct(bool, ZapVMHandleArea, trueInDebug, \ |
duke@435 | 584 | "Zap freed VM handle space with 0xBCBCBCBC") \ |
duke@435 | 585 | \ |
duke@435 | 586 | develop(bool, ZapJNIHandleArea, trueInDebug, \ |
duke@435 | 587 | "Zap freed JNI handle space with 0xFEFEFEFE") \ |
duke@435 | 588 | \ |
duke@435 | 589 | develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
duke@435 | 590 | "Zap unused heap space with 0xBAADBABE") \ |
duke@435 | 591 | \ |
duke@435 | 592 | develop(bool, PrintVMMessages, true, \ |
duke@435 | 593 | "Print vm messages on console") \ |
duke@435 | 594 | \ |
duke@435 | 595 | product(bool, PrintGCApplicationConcurrentTime, false, \ |
duke@435 | 596 | "Print the time the application has been running") \ |
duke@435 | 597 | \ |
duke@435 | 598 | product(bool, PrintGCApplicationStoppedTime, false, \ |
duke@435 | 599 | "Print the time the application has been stopped") \ |
duke@435 | 600 | \ |
duke@435 | 601 | develop(bool, Verbose, false, \ |
duke@435 | 602 | "Prints additional debugging information from other modes") \ |
duke@435 | 603 | \ |
duke@435 | 604 | develop(bool, PrintMiscellaneous, false, \ |
duke@435 | 605 | "Prints uncategorized debugging information (requires +Verbose)") \ |
duke@435 | 606 | \ |
duke@435 | 607 | develop(bool, WizardMode, false, \ |
duke@435 | 608 | "Prints much more debugging information") \ |
duke@435 | 609 | \ |
duke@435 | 610 | product(bool, ShowMessageBoxOnError, false, \ |
duke@435 | 611 | "Keep process alive on VM fatal error") \ |
duke@435 | 612 | \ |
duke@435 | 613 | product_pd(bool, UseOSErrorReporting, \ |
duke@435 | 614 | "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ |
duke@435 | 615 | \ |
duke@435 | 616 | product(bool, SuppressFatalErrorMessage, false, \ |
duke@435 | 617 | "Do NO Fatal Error report [Avoid deadlock]") \ |
duke@435 | 618 | \ |
duke@435 | 619 | product(ccstrlist, OnError, "", \ |
duke@435 | 620 | "Run user-defined commands on fatal error; see VMError.cpp " \ |
duke@435 | 621 | "for examples") \ |
duke@435 | 622 | \ |
duke@435 | 623 | product(ccstrlist, OnOutOfMemoryError, "", \ |
duke@435 | 624 | "Run user-defined commands on first java.lang.OutOfMemoryError") \ |
duke@435 | 625 | \ |
duke@435 | 626 | manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
duke@435 | 627 | "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ |
duke@435 | 628 | \ |
duke@435 | 629 | manageable(ccstr, HeapDumpPath, NULL, \ |
duke@435 | 630 | "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ |
duke@435 | 631 | "directory) of the dump file (defaults to java_pid<pid>.hprof" \ |
duke@435 | 632 | "in the working directory)") \ |
duke@435 | 633 | \ |
duke@435 | 634 | develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ |
duke@435 | 635 | "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ |
duke@435 | 636 | "when the heap usage is larger than this") \ |
duke@435 | 637 | \ |
duke@435 | 638 | develop(uintx, HeapDumpSegmentSize, 1*G, \ |
duke@435 | 639 | "Approximate segment size when generating a segmented heap dump") \ |
duke@435 | 640 | \ |
duke@435 | 641 | develop(bool, BreakAtWarning, false, \ |
duke@435 | 642 | "Execute breakpoint upon encountering VM warning") \ |
duke@435 | 643 | \ |
duke@435 | 644 | product_pd(bool, UseVectoredExceptions, \ |
duke@435 | 645 | "Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \ |
duke@435 | 646 | \ |
duke@435 | 647 | develop(bool, TraceVMOperation, false, \ |
duke@435 | 648 | "Trace vm operations") \ |
duke@435 | 649 | \ |
duke@435 | 650 | develop(bool, UseFakeTimers, false, \ |
duke@435 | 651 | "Tells whether the VM should use system time or a fake timer") \ |
duke@435 | 652 | \ |
duke@435 | 653 | diagnostic(bool, LogCompilation, false, \ |
duke@435 | 654 | "Log compilation activity in detail to hotspot.log or LogFile") \ |
duke@435 | 655 | \ |
duke@435 | 656 | product(bool, PrintCompilation, false, \ |
duke@435 | 657 | "Print compilations") \ |
duke@435 | 658 | \ |
duke@435 | 659 | diagnostic(bool, TraceNMethodInstalls, false, \ |
duke@435 | 660 | "Trace nmethod intallation") \ |
duke@435 | 661 | \ |
duke@435 | 662 | diagnostic(bool, TraceOSRBreakpoint, false, \ |
duke@435 | 663 | "Trace OSR Breakpoint ") \ |
duke@435 | 664 | \ |
duke@435 | 665 | diagnostic(bool, TraceCompileTriggered, false, \ |
duke@435 | 666 | "Trace compile triggered") \ |
duke@435 | 667 | \ |
duke@435 | 668 | diagnostic(bool, TraceTriggers, false, \ |
duke@435 | 669 | "Trace triggers") \ |
duke@435 | 670 | \ |
duke@435 | 671 | product(bool, AlwaysRestoreFPU, false, \ |
duke@435 | 672 | "Restore the FPU control word after every JNI call (expensive)") \ |
duke@435 | 673 | \ |
duke@435 | 674 | notproduct(bool, PrintCompilation2, false, \ |
duke@435 | 675 | "Print additional statistics per compilation") \ |
duke@435 | 676 | \ |
duke@435 | 677 | notproduct(bool, PrintAdapterHandlers, false, \ |
duke@435 | 678 | "Print code generated for i2c/c2i adapters") \ |
duke@435 | 679 | \ |
duke@435 | 680 | develop(bool, PrintAssembly, false, \ |
duke@435 | 681 | "Print assembly code") \ |
duke@435 | 682 | \ |
duke@435 | 683 | develop(bool, PrintNMethods, false, \ |
duke@435 | 684 | "Print assembly code for nmethods when generated") \ |
duke@435 | 685 | \ |
duke@435 | 686 | develop(bool, PrintNativeNMethods, false, \ |
duke@435 | 687 | "Print assembly code for native nmethods when generated") \ |
duke@435 | 688 | \ |
duke@435 | 689 | develop(bool, PrintDebugInfo, false, \ |
duke@435 | 690 | "Print debug information for all nmethods when generated") \ |
duke@435 | 691 | \ |
duke@435 | 692 | develop(bool, PrintRelocations, false, \ |
duke@435 | 693 | "Print relocation information for all nmethods when generated") \ |
duke@435 | 694 | \ |
duke@435 | 695 | develop(bool, PrintDependencies, false, \ |
duke@435 | 696 | "Print dependency information for all nmethods when generated") \ |
duke@435 | 697 | \ |
duke@435 | 698 | develop(bool, PrintExceptionHandlers, false, \ |
duke@435 | 699 | "Print exception handler tables for all nmethods when generated") \ |
duke@435 | 700 | \ |
duke@435 | 701 | develop(bool, InterceptOSException, false, \ |
duke@435 | 702 | "Starts debugger when an implicit OS (e.g., NULL) " \ |
duke@435 | 703 | "exception happens") \ |
duke@435 | 704 | \ |
duke@435 | 705 | notproduct(bool, PrintCodeCache, false, \ |
duke@435 | 706 | "Print the compiled_code cache when exiting") \ |
duke@435 | 707 | \ |
duke@435 | 708 | develop(bool, PrintCodeCache2, false, \ |
duke@435 | 709 | "Print detailed info on the compiled_code cache when exiting") \ |
duke@435 | 710 | \ |
duke@435 | 711 | develop(bool, PrintStubCode, false, \ |
duke@435 | 712 | "Print generated stub code") \ |
duke@435 | 713 | \ |
duke@435 | 714 | product(bool, StackTraceInThrowable, true, \ |
duke@435 | 715 | "Collect backtrace in throwable when exception happens") \ |
duke@435 | 716 | \ |
duke@435 | 717 | product(bool, OmitStackTraceInFastThrow, true, \ |
duke@435 | 718 | "Omit backtraces for some 'hot' exceptions in optimized code") \ |
duke@435 | 719 | \ |
duke@435 | 720 | product(bool, ProfilerPrintByteCodeStatistics, false, \ |
duke@435 | 721 | "Prints byte code statictics when dumping profiler output") \ |
duke@435 | 722 | \ |
duke@435 | 723 | product(bool, ProfilerRecordPC, false, \ |
duke@435 | 724 | "Collects tick for each 16 byte interval of compiled code") \ |
duke@435 | 725 | \ |
duke@435 | 726 | product(bool, ProfileVM, false, \ |
duke@435 | 727 | "Profiles ticks that fall within VM (either in the VM Thread " \ |
duke@435 | 728 | "or VM code called through stubs)") \ |
duke@435 | 729 | \ |
duke@435 | 730 | product(bool, ProfileIntervals, false, \ |
duke@435 | 731 | "Prints profiles for each interval (see ProfileIntervalsTicks)") \ |
duke@435 | 732 | \ |
duke@435 | 733 | notproduct(bool, ProfilerCheckIntervals, false, \ |
duke@435 | 734 | "Collect and print info on spacing of profiler ticks") \ |
duke@435 | 735 | \ |
duke@435 | 736 | develop(bool, PrintJVMWarnings, false, \ |
duke@435 | 737 | "Prints warnings for unimplemented JVM functions") \ |
duke@435 | 738 | \ |
duke@435 | 739 | notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
duke@435 | 740 | "Prints warnings for stalled SpinLocks") \ |
duke@435 | 741 | \ |
duke@435 | 742 | develop(bool, InitializeJavaLangSystem, true, \ |
duke@435 | 743 | "Initialize java.lang.System - turn off for individual " \ |
duke@435 | 744 | "method debugging") \ |
duke@435 | 745 | \ |
duke@435 | 746 | develop(bool, InitializeJavaLangString, true, \ |
duke@435 | 747 | "Initialize java.lang.String - turn off for individual " \ |
duke@435 | 748 | "method debugging") \ |
duke@435 | 749 | \ |
duke@435 | 750 | develop(bool, InitializeJavaLangExceptionsErrors, true, \ |
duke@435 | 751 | "Initialize various error and exception classes - turn off for " \ |
duke@435 | 752 | "individual method debugging") \ |
duke@435 | 753 | \ |
duke@435 | 754 | product(bool, RegisterFinalizersAtInit, true, \ |
duke@435 | 755 | "Register finalizable objects at end of Object.<init> or " \ |
duke@435 | 756 | "after allocation.") \ |
duke@435 | 757 | \ |
duke@435 | 758 | develop(bool, RegisterReferences, true, \ |
duke@435 | 759 | "Tells whether the VM should register soft/weak/final/phantom " \ |
duke@435 | 760 | "references") \ |
duke@435 | 761 | \ |
duke@435 | 762 | develop(bool, IgnoreRewrites, false, \ |
duke@435 | 763 | "Supress rewrites of bytecodes in the oopmap generator. " \ |
duke@435 | 764 | "This is unsafe!") \ |
duke@435 | 765 | \ |
duke@435 | 766 | develop(bool, PrintCodeCacheExtension, false, \ |
duke@435 | 767 | "Print extension of code cache") \ |
duke@435 | 768 | \ |
duke@435 | 769 | develop(bool, UsePrivilegedStack, true, \ |
duke@435 | 770 | "Enable the security JVM functions") \ |
duke@435 | 771 | \ |
duke@435 | 772 | develop(bool, IEEEPrecision, true, \ |
duke@435 | 773 | "Enables IEEE precision (for INTEL only)") \ |
duke@435 | 774 | \ |
duke@435 | 775 | develop(bool, ProtectionDomainVerification, true, \ |
duke@435 | 776 | "Verifies protection domain before resolution in system " \ |
duke@435 | 777 | "dictionary") \ |
duke@435 | 778 | \ |
duke@435 | 779 | product(bool, ClassUnloading, true, \ |
duke@435 | 780 | "Do unloading of classes") \ |
duke@435 | 781 | \ |
duke@435 | 782 | develop(bool, DisableStartThread, false, \ |
duke@435 | 783 | "Disable starting of additional Java threads " \ |
duke@435 | 784 | "(for debugging only)") \ |
duke@435 | 785 | \ |
duke@435 | 786 | develop(bool, MemProfiling, false, \ |
duke@435 | 787 | "Write memory usage profiling to log file") \ |
duke@435 | 788 | \ |
duke@435 | 789 | notproduct(bool, PrintSystemDictionaryAtExit, false, \ |
duke@435 | 790 | "Prints the system dictionary at exit") \ |
duke@435 | 791 | \ |
duke@435 | 792 | diagnostic(bool, UnsyncloadClass, false, \ |
duke@435 | 793 | "Unstable: VM calls loadClass unsynchronized. Custom classloader "\ |
duke@435 | 794 | "must call VM synchronized for findClass & defineClass") \ |
duke@435 | 795 | \ |
duke@435 | 796 | product_pd(bool, DontYieldALot, \ |
duke@435 | 797 | "Throw away obvious excess yield calls (for SOLARIS only)") \ |
duke@435 | 798 | \ |
duke@435 | 799 | product_pd(bool, ConvertSleepToYield, \ |
duke@435 | 800 | "Converts sleep(0) to thread yield " \ |
duke@435 | 801 | "(may be off for SOLARIS to improve GUI)") \ |
duke@435 | 802 | \ |
duke@435 | 803 | product(bool, ConvertYieldToSleep, false, \ |
duke@435 | 804 | "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ |
duke@435 | 805 | "behavior (SOLARIS only)") \ |
duke@435 | 806 | \ |
duke@435 | 807 | product(bool, UseBoundThreads, true, \ |
duke@435 | 808 | "Bind user level threads to kernel threads (for SOLARIS only)") \ |
duke@435 | 809 | \ |
duke@435 | 810 | develop(bool, UseDetachedThreads, true, \ |
duke@435 | 811 | "Use detached threads that are recycled upon termination " \ |
duke@435 | 812 | "(for SOLARIS only)") \ |
duke@435 | 813 | \ |
duke@435 | 814 | product(bool, UseLWPSynchronization, true, \ |
duke@435 | 815 | "Use LWP-based instead of libthread-based synchronization " \ |
duke@435 | 816 | "(SPARC only)") \ |
duke@435 | 817 | \ |
duke@435 | 818 | product(ccstr, SyncKnobs, "", \ |
duke@435 | 819 | "(Unstable) Various monitor synchronization tunables") \ |
duke@435 | 820 | \ |
duke@435 | 821 | product(intx, EmitSync, 0, \ |
duke@435 | 822 | "(Unsafe,Unstable) " \ |
duke@435 | 823 | " Controls emission of inline sync fast-path code") \ |
duke@435 | 824 | \ |
duke@435 | 825 | product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \ |
duke@435 | 826 | \ |
duke@435 | 827 | product(intx, Atomics, 0, \ |
duke@435 | 828 | "(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \ |
duke@435 | 829 | \ |
duke@435 | 830 | product(intx, FenceInstruction, 0, \ |
duke@435 | 831 | "(Unsafe,Unstable) Experimental") \ |
duke@435 | 832 | \ |
duke@435 | 833 | product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ |
duke@435 | 834 | \ |
duke@435 | 835 | product(intx, SyncVerbose, 0, "(Unstable)" ) \ |
duke@435 | 836 | \ |
duke@435 | 837 | product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ |
duke@435 | 838 | \ |
duke@435 | 839 | product(intx, hashCode, 0, \ |
duke@435 | 840 | "(Unstable) select hashCode generation algorithm" ) \ |
duke@435 | 841 | \ |
duke@435 | 842 | product(intx, WorkAroundNPTLTimedWaitHang, 1, \ |
duke@435 | 843 | "(Unstable, Linux-specific)" \ |
duke@435 | 844 | " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ |
duke@435 | 845 | \ |
duke@435 | 846 | product(bool, FilterSpuriousWakeups , true, \ |
duke@435 | 847 | "Prevent spurious or premature wakeups from object.wait" \ |
duke@435 | 848 | "(Solaris only)") \ |
duke@435 | 849 | \ |
duke@435 | 850 | product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ |
duke@435 | 851 | product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ |
duke@435 | 852 | product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ |
duke@435 | 853 | \ |
duke@435 | 854 | develop(bool, UsePthreads, false, \ |
duke@435 | 855 | "Use pthread-based instead of libthread-based synchronization " \ |
duke@435 | 856 | "(SPARC only)") \ |
duke@435 | 857 | \ |
duke@435 | 858 | product(bool, AdjustConcurrency, false, \ |
duke@435 | 859 | "call thr_setconcurrency at thread create time to avoid " \ |
duke@435 | 860 | "LWP starvation on MP systems (For Solaris Only)") \ |
duke@435 | 861 | \ |
duke@435 | 862 | develop(bool, UpdateHotSpotCompilerFileOnError, true, \ |
duke@435 | 863 | "Should the system attempt to update the compiler file when " \ |
duke@435 | 864 | "an error occurs?") \ |
duke@435 | 865 | \ |
duke@435 | 866 | product(bool, ReduceSignalUsage, false, \ |
duke@435 | 867 | "Reduce the use of OS signals in Java and/or the VM") \ |
duke@435 | 868 | \ |
duke@435 | 869 | notproduct(bool, ValidateMarkSweep, false, \ |
duke@435 | 870 | "Do extra validation during MarkSweep collection") \ |
duke@435 | 871 | \ |
duke@435 | 872 | notproduct(bool, RecordMarkSweepCompaction, false, \ |
duke@435 | 873 | "Enable GC-to-GC recording and querying of compaction during " \ |
duke@435 | 874 | "MarkSweep") \ |
duke@435 | 875 | \ |
duke@435 | 876 | develop_pd(bool, ShareVtableStubs, \ |
duke@435 | 877 | "Share vtable stubs (smaller code but worse branch prediction") \ |
duke@435 | 878 | \ |
duke@435 | 879 | develop(bool, LoadLineNumberTables, true, \ |
duke@435 | 880 | "Tells whether the class file parser loads line number tables") \ |
duke@435 | 881 | \ |
duke@435 | 882 | develop(bool, LoadLocalVariableTables, true, \ |
duke@435 | 883 | "Tells whether the class file parser loads local variable tables")\ |
duke@435 | 884 | \ |
duke@435 | 885 | develop(bool, LoadLocalVariableTypeTables, true, \ |
duke@435 | 886 | "Tells whether the class file parser loads local variable type tables")\ |
duke@435 | 887 | \ |
duke@435 | 888 | product(bool, AllowUserSignalHandlers, false, \ |
duke@435 | 889 | "Do not complain if the application installs signal handlers " \ |
duke@435 | 890 | "(Solaris & Linux only)") \ |
duke@435 | 891 | \ |
duke@435 | 892 | product(bool, UseSignalChaining, true, \ |
duke@435 | 893 | "Use signal-chaining to invoke signal handlers installed " \ |
duke@435 | 894 | "by the application (Solaris & Linux only)") \ |
duke@435 | 895 | \ |
duke@435 | 896 | product(bool, UseAltSigs, false, \ |
duke@435 | 897 | "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ |
duke@435 | 898 | "internal signals. (Solaris only)") \ |
duke@435 | 899 | \ |
duke@435 | 900 | product(bool, UseSpinning, false, \ |
duke@435 | 901 | "Use spinning in monitor inflation and before entry") \ |
duke@435 | 902 | \ |
duke@435 | 903 | product(bool, PreSpinYield, false, \ |
duke@435 | 904 | "Yield before inner spinning loop") \ |
duke@435 | 905 | \ |
duke@435 | 906 | product(bool, PostSpinYield, true, \ |
duke@435 | 907 | "Yield after inner spinning loop") \ |
duke@435 | 908 | \ |
duke@435 | 909 | product(bool, AllowJNIEnvProxy, false, \ |
duke@435 | 910 | "Allow JNIEnv proxies for jdbx") \ |
duke@435 | 911 | \ |
duke@435 | 912 | product(bool, JNIDetachReleasesMonitors, true, \ |
duke@435 | 913 | "JNI DetachCurrentThread releases monitors owned by thread") \ |
duke@435 | 914 | \ |
duke@435 | 915 | product(bool, RestoreMXCSROnJNICalls, false, \ |
duke@435 | 916 | "Restore MXCSR when returning from JNI calls") \ |
duke@435 | 917 | \ |
duke@435 | 918 | product(bool, CheckJNICalls, false, \ |
duke@435 | 919 | "Verify all arguments to JNI calls") \ |
duke@435 | 920 | \ |
duke@435 | 921 | product(bool, UseFastJNIAccessors, true, \ |
duke@435 | 922 | "Use optimized versions of Get<Primitive>Field") \ |
duke@435 | 923 | \ |
duke@435 | 924 | product(bool, EagerXrunInit, false, \ |
duke@435 | 925 | "Eagerly initialize -Xrun libraries; allows startup profiling, " \ |
duke@435 | 926 | " but not all -Xrun libraries may support the state of the VM at this time") \ |
duke@435 | 927 | \ |
duke@435 | 928 | product(bool, PreserveAllAnnotations, false, \ |
duke@435 | 929 | "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ |
duke@435 | 930 | \ |
duke@435 | 931 | develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ |
duke@435 | 932 | "Number of OutOfMemoryErrors preallocated with backtrace") \ |
duke@435 | 933 | \ |
duke@435 | 934 | product(bool, LazyBootClassLoader, true, \ |
duke@435 | 935 | "Enable/disable lazy opening of boot class path entries") \ |
duke@435 | 936 | \ |
duke@435 | 937 | diagnostic(bool, UseIncDec, true, \ |
duke@435 | 938 | "Use INC, DEC instructions on x86") \ |
duke@435 | 939 | \ |
duke@435 | 940 | product(bool, UseStoreImmI16, true, \ |
duke@435 | 941 | "Use store immediate 16-bits value instruction on x86") \ |
duke@435 | 942 | \ |
duke@435 | 943 | product(bool, UseAddressNop, false, \ |
duke@435 | 944 | "Use '0F 1F [addr]' NOP instructions on x86 cpus") \ |
duke@435 | 945 | \ |
duke@435 | 946 | product(bool, UseXmmLoadAndClearUpper, true, \ |
duke@435 | 947 | "Load low part of XMM register and clear upper part") \ |
duke@435 | 948 | \ |
duke@435 | 949 | product(bool, UseXmmRegToRegMoveAll, false, \ |
duke@435 | 950 | "Copy all XMM register bits when moving value between registers") \ |
duke@435 | 951 | \ |
duke@435 | 952 | product(intx, FieldsAllocationStyle, 1, \ |
duke@435 | 953 | "0 - type based with oops first, 1 - with oops last") \ |
duke@435 | 954 | \ |
duke@435 | 955 | product(bool, CompactFields, true, \ |
duke@435 | 956 | "Allocate nonstatic fields in gaps between previous fields") \ |
duke@435 | 957 | \ |
duke@435 | 958 | notproduct(bool, PrintCompactFieldsSavings, false, \ |
duke@435 | 959 | "Print how many words were saved with CompactFields") \ |
duke@435 | 960 | \ |
duke@435 | 961 | product(bool, UseBiasedLocking, true, \ |
duke@435 | 962 | "Enable biased locking in JVM") \ |
duke@435 | 963 | \ |
duke@435 | 964 | product(intx, BiasedLockingStartupDelay, 4000, \ |
duke@435 | 965 | "Number of milliseconds to wait before enabling biased locking") \ |
duke@435 | 966 | \ |
duke@435 | 967 | diagnostic(bool, PrintBiasedLockingStatistics, false, \ |
duke@435 | 968 | "Print statistics of biased locking in JVM") \ |
duke@435 | 969 | \ |
duke@435 | 970 | product(intx, BiasedLockingBulkRebiasThreshold, 20, \ |
duke@435 | 971 | "Threshold of number of revocations per type to try to " \ |
duke@435 | 972 | "rebias all objects in the heap of that type") \ |
duke@435 | 973 | \ |
duke@435 | 974 | product(intx, BiasedLockingBulkRevokeThreshold, 40, \ |
duke@435 | 975 | "Threshold of number of revocations per type to permanently " \ |
duke@435 | 976 | "revoke biases of all objects in the heap of that type") \ |
duke@435 | 977 | \ |
duke@435 | 978 | product(intx, BiasedLockingDecayTime, 25000, \ |
duke@435 | 979 | "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ |
duke@435 | 980 | "type after previous bulk rebias") \ |
duke@435 | 981 | \ |
duke@435 | 982 | /* tracing */ \ |
duke@435 | 983 | \ |
duke@435 | 984 | notproduct(bool, TraceRuntimeCalls, false, \ |
duke@435 | 985 | "Trace run-time calls") \ |
duke@435 | 986 | \ |
duke@435 | 987 | develop(bool, TraceJNICalls, false, \ |
duke@435 | 988 | "Trace JNI calls") \ |
duke@435 | 989 | \ |
duke@435 | 990 | notproduct(bool, TraceJVMCalls, false, \ |
duke@435 | 991 | "Trace JVM calls") \ |
duke@435 | 992 | \ |
duke@435 | 993 | product(ccstr, TraceJVMTI, "", \ |
duke@435 | 994 | "Trace flags for JVMTI functions and events") \ |
duke@435 | 995 | \ |
duke@435 | 996 | /* This option can change an EMCP method into an obsolete method. */ \ |
duke@435 | 997 | /* This can affect tests that except specific methods to be EMCP. */ \ |
duke@435 | 998 | /* This option should be used with caution. */ \ |
duke@435 | 999 | product(bool, StressLdcRewrite, false, \ |
duke@435 | 1000 | "Force ldc -> ldc_w rewrite during RedefineClasses") \ |
duke@435 | 1001 | \ |
duke@435 | 1002 | product(intx, TraceRedefineClasses, 0, \ |
duke@435 | 1003 | "Trace level for JVMTI RedefineClasses") \ |
duke@435 | 1004 | \ |
duke@435 | 1005 | /* change to false by default sometime after Mustang */ \ |
duke@435 | 1006 | product(bool, VerifyMergedCPBytecodes, true, \ |
duke@435 | 1007 | "Verify bytecodes after RedefineClasses constant pool merging") \ |
duke@435 | 1008 | \ |
duke@435 | 1009 | develop(bool, TraceJNIHandleAllocation, false, \ |
duke@435 | 1010 | "Trace allocation/deallocation of JNI handle blocks") \ |
duke@435 | 1011 | \ |
duke@435 | 1012 | develop(bool, TraceThreadEvents, false, \ |
duke@435 | 1013 | "Trace all thread events") \ |
duke@435 | 1014 | \ |
duke@435 | 1015 | develop(bool, TraceBytecodes, false, \ |
duke@435 | 1016 | "Trace bytecode execution") \ |
duke@435 | 1017 | \ |
duke@435 | 1018 | develop(bool, TraceClassInitialization, false, \ |
duke@435 | 1019 | "Trace class initialization") \ |
duke@435 | 1020 | \ |
duke@435 | 1021 | develop(bool, TraceExceptions, false, \ |
duke@435 | 1022 | "Trace exceptions") \ |
duke@435 | 1023 | \ |
duke@435 | 1024 | develop(bool, TraceICs, false, \ |
duke@435 | 1025 | "Trace inline cache changes") \ |
duke@435 | 1026 | \ |
duke@435 | 1027 | notproduct(bool, TraceInvocationCounterOverflow, false, \ |
duke@435 | 1028 | "Trace method invocation counter overflow") \ |
duke@435 | 1029 | \ |
duke@435 | 1030 | develop(bool, TraceInlineCacheClearing, false, \ |
duke@435 | 1031 | "Trace clearing of inline caches in nmethods") \ |
duke@435 | 1032 | \ |
duke@435 | 1033 | develop(bool, TraceDependencies, false, \ |
duke@435 | 1034 | "Trace dependencies") \ |
duke@435 | 1035 | \ |
duke@435 | 1036 | develop(bool, VerifyDependencies, trueInDebug, \ |
duke@435 | 1037 | "Exercise and verify the compilation dependency mechanism") \ |
duke@435 | 1038 | \ |
duke@435 | 1039 | develop(bool, TraceNewOopMapGeneration, false, \ |
duke@435 | 1040 | "Trace OopMapGeneration") \ |
duke@435 | 1041 | \ |
duke@435 | 1042 | develop(bool, TraceNewOopMapGenerationDetailed, false, \ |
duke@435 | 1043 | "Trace OopMapGeneration: print detailed cell states") \ |
duke@435 | 1044 | \ |
duke@435 | 1045 | develop(bool, TimeOopMap, false, \ |
duke@435 | 1046 | "Time calls to GenerateOopMap::compute_map() in sum") \ |
duke@435 | 1047 | \ |
duke@435 | 1048 | develop(bool, TimeOopMap2, false, \ |
duke@435 | 1049 | "Time calls to GenerateOopMap::compute_map() individually") \ |
duke@435 | 1050 | \ |
duke@435 | 1051 | develop(bool, TraceMonitorMismatch, false, \ |
duke@435 | 1052 | "Trace monitor matching failures during OopMapGeneration") \ |
duke@435 | 1053 | \ |
duke@435 | 1054 | develop(bool, TraceOopMapRewrites, false, \ |
duke@435 | 1055 | "Trace rewritting of method oops during oop map generation") \ |
duke@435 | 1056 | \ |
duke@435 | 1057 | develop(bool, TraceSafepoint, false, \ |
duke@435 | 1058 | "Trace safepoint operations") \ |
duke@435 | 1059 | \ |
duke@435 | 1060 | develop(bool, TraceICBuffer, false, \ |
duke@435 | 1061 | "Trace usage of IC buffer") \ |
duke@435 | 1062 | \ |
duke@435 | 1063 | develop(bool, TraceCompiledIC, false, \ |
duke@435 | 1064 | "Trace changes of compiled IC") \ |
duke@435 | 1065 | \ |
duke@435 | 1066 | notproduct(bool, TraceZapDeadLocals, false, \ |
duke@435 | 1067 | "Trace zapping dead locals") \ |
duke@435 | 1068 | \ |
duke@435 | 1069 | develop(bool, TraceStartupTime, false, \ |
duke@435 | 1070 | "Trace setup time") \ |
duke@435 | 1071 | \ |
duke@435 | 1072 | develop(bool, TraceHPI, false, \ |
duke@435 | 1073 | "Trace Host Porting Interface (HPI)") \ |
duke@435 | 1074 | \ |
duke@435 | 1075 | product(ccstr, HPILibPath, NULL, \ |
duke@435 | 1076 | "Specify alternate path to HPI library") \ |
duke@435 | 1077 | \ |
duke@435 | 1078 | develop(bool, TraceProtectionDomainVerification, false, \ |
duke@435 | 1079 | "Trace protection domain verifcation") \ |
duke@435 | 1080 | \ |
duke@435 | 1081 | develop(bool, TraceClearedExceptions, false, \ |
duke@435 | 1082 | "Prints when an exception is forcibly cleared") \ |
duke@435 | 1083 | \ |
duke@435 | 1084 | product(bool, TraceClassResolution, false, \ |
duke@435 | 1085 | "Trace all constant pool resolutions (for debugging)") \ |
duke@435 | 1086 | \ |
duke@435 | 1087 | product(bool, TraceBiasedLocking, false, \ |
duke@435 | 1088 | "Trace biased locking in JVM") \ |
duke@435 | 1089 | \ |
duke@435 | 1090 | product(bool, TraceMonitorInflation, false, \ |
duke@435 | 1091 | "Trace monitor inflation in JVM") \ |
duke@435 | 1092 | \ |
duke@435 | 1093 | /* assembler */ \ |
duke@435 | 1094 | product(bool, Use486InstrsOnly, false, \ |
duke@435 | 1095 | "Use 80486 Compliant instruction subset") \ |
duke@435 | 1096 | \ |
duke@435 | 1097 | /* gc */ \ |
duke@435 | 1098 | \ |
duke@435 | 1099 | product(bool, UseSerialGC, false, \ |
duke@435 | 1100 | "Tells whether the VM should use serial garbage collector") \ |
duke@435 | 1101 | \ |
duke@435 | 1102 | product(bool, UseParallelGC, false, \ |
duke@435 | 1103 | "Use the Parallel Scavenge garbage collector") \ |
duke@435 | 1104 | \ |
duke@435 | 1105 | product(bool, UseParallelOldGC, false, \ |
duke@435 | 1106 | "Use the Parallel Old garbage collector") \ |
duke@435 | 1107 | \ |
duke@435 | 1108 | product(bool, UseParallelOldGCCompacting, true, \ |
duke@435 | 1109 | "In the Parallel Old garbage collector use parallel compaction") \ |
duke@435 | 1110 | \ |
duke@435 | 1111 | product(bool, UseParallelDensePrefixUpdate, true, \ |
duke@435 | 1112 | "In the Parallel Old garbage collector use parallel dense" \ |
duke@435 | 1113 | " prefix update") \ |
duke@435 | 1114 | \ |
duke@435 | 1115 | develop(bool, UseParallelOldGCChunkPointerCalc, true, \ |
duke@435 | 1116 | "In the Parallel Old garbage collector use chucks to calculate" \ |
duke@435 | 1117 | " new object locations") \ |
duke@435 | 1118 | \ |
duke@435 | 1119 | product(uintx, HeapMaximumCompactionInterval, 20, \ |
duke@435 | 1120 | "How often should we maximally compact the heap (not allowing " \ |
duke@435 | 1121 | "any dead space)") \ |
duke@435 | 1122 | \ |
duke@435 | 1123 | product(uintx, HeapFirstMaximumCompactionCount, 3, \ |
duke@435 | 1124 | "The collection count for the first maximum compaction") \ |
duke@435 | 1125 | \ |
duke@435 | 1126 | product(bool, UseMaximumCompactionOnSystemGC, true, \ |
duke@435 | 1127 | "In the Parallel Old garbage collector maximum compaction for " \ |
duke@435 | 1128 | "a system GC") \ |
duke@435 | 1129 | \ |
duke@435 | 1130 | product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ |
duke@435 | 1131 | "The mean used by the par compact dead wood" \ |
duke@435 | 1132 | "limiter (a number between 0-100).") \ |
duke@435 | 1133 | \ |
duke@435 | 1134 | product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ |
duke@435 | 1135 | "The standard deviation used by the par compact dead wood" \ |
duke@435 | 1136 | "limiter (a number between 0-100).") \ |
duke@435 | 1137 | \ |
duke@435 | 1138 | product(bool, UseParallelOldGCDensePrefix, true, \ |
duke@435 | 1139 | "Use a dense prefix with the Parallel Old garbage collector") \ |
duke@435 | 1140 | \ |
duke@435 | 1141 | product(uintx, ParallelGCThreads, 0, \ |
duke@435 | 1142 | "Number of parallel threads parallel gc will use") \ |
duke@435 | 1143 | \ |
duke@435 | 1144 | product(uintx, ParallelCMSThreads, 0, \ |
duke@435 | 1145 | "Max number of threads CMS will use for concurrent work") \ |
duke@435 | 1146 | \ |
duke@435 | 1147 | develop(bool, VerifyParallelOldWithMarkSweep, false, \ |
duke@435 | 1148 | "Use the MarkSweep code to verify phases of Parallel Old") \ |
duke@435 | 1149 | \ |
duke@435 | 1150 | develop(uintx, VerifyParallelOldWithMarkSweepInterval, 1, \ |
duke@435 | 1151 | "Interval at which the MarkSweep code is used to verify " \ |
duke@435 | 1152 | "phases of Parallel Old") \ |
duke@435 | 1153 | \ |
duke@435 | 1154 | develop(bool, ParallelOldMTUnsafeMarkBitMap, false, \ |
duke@435 | 1155 | "Use the Parallel Old MT unsafe in marking the bitmap") \ |
duke@435 | 1156 | \ |
duke@435 | 1157 | develop(bool, ParallelOldMTUnsafeUpdateLiveData, false, \ |
duke@435 | 1158 | "Use the Parallel Old MT unsafe in update of live size") \ |
duke@435 | 1159 | \ |
duke@435 | 1160 | develop(bool, TraceChunkTasksQueuing, false, \ |
duke@435 | 1161 | "Trace the queuing of the chunk tasks") \ |
duke@435 | 1162 | \ |
duke@435 | 1163 | product(uintx, YoungPLABSize, 4096, \ |
duke@435 | 1164 | "Size of young gen promotion labs (in HeapWords)") \ |
duke@435 | 1165 | \ |
duke@435 | 1166 | product(uintx, OldPLABSize, 1024, \ |
duke@435 | 1167 | "Size of old gen promotion labs (in HeapWords)") \ |
duke@435 | 1168 | \ |
duke@435 | 1169 | product(uintx, GCTaskTimeStampEntries, 200, \ |
duke@435 | 1170 | "Number of time stamp entries per gc worker thread") \ |
duke@435 | 1171 | \ |
duke@435 | 1172 | product(bool, AlwaysTenure, false, \ |
duke@435 | 1173 | "Always tenure objects in eden. (ParallelGC only)") \ |
duke@435 | 1174 | \ |
duke@435 | 1175 | product(bool, NeverTenure, false, \ |
duke@435 | 1176 | "Never tenure objects in eden, May tenure on overflow" \ |
duke@435 | 1177 | " (ParallelGC only)") \ |
duke@435 | 1178 | \ |
duke@435 | 1179 | product(bool, ScavengeBeforeFullGC, true, \ |
duke@435 | 1180 | "Scavenge youngest generation before each full GC," \ |
duke@435 | 1181 | " used with UseParallelGC") \ |
duke@435 | 1182 | \ |
duke@435 | 1183 | develop(bool, ScavengeWithObjectsInToSpace, false, \ |
duke@435 | 1184 | "Allow scavenges to occur when to_space contains objects.") \ |
duke@435 | 1185 | \ |
duke@435 | 1186 | product(bool, UseConcMarkSweepGC, false, \ |
duke@435 | 1187 | "Use Concurrent Mark-Sweep GC in the old generation") \ |
duke@435 | 1188 | \ |
duke@435 | 1189 | product(bool, ExplicitGCInvokesConcurrent, false, \ |
duke@435 | 1190 | "A System.gc() request invokes a concurrent collection;" \ |
duke@435 | 1191 | " (effective only when UseConcMarkSweepGC)") \ |
duke@435 | 1192 | \ |
duke@435 | 1193 | product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ |
duke@435 | 1194 | "A System.gc() request invokes a concurrent collection and" \ |
duke@435 | 1195 | " also unloads classes during such a concurrent gc cycle " \ |
duke@435 | 1196 | " (effective only when UseConcMarkSweepGC)") \ |
duke@435 | 1197 | \ |
duke@435 | 1198 | develop(bool, UseCMSAdaptiveFreeLists, true, \ |
duke@435 | 1199 | "Use Adaptive Free Lists in the CMS generation") \ |
duke@435 | 1200 | \ |
duke@435 | 1201 | develop(bool, UseAsyncConcMarkSweepGC, true, \ |
duke@435 | 1202 | "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ |
duke@435 | 1203 | \ |
duke@435 | 1204 | develop(bool, RotateCMSCollectionTypes, false, \ |
duke@435 | 1205 | "Rotate the CMS collections among concurrent and STW") \ |
duke@435 | 1206 | \ |
duke@435 | 1207 | product(bool, UseCMSBestFit, true, \ |
duke@435 | 1208 | "Use CMS best fit allocation strategy") \ |
duke@435 | 1209 | \ |
duke@435 | 1210 | product(bool, UseCMSCollectionPassing, true, \ |
duke@435 | 1211 | "Use passing of collection from background to foreground") \ |
duke@435 | 1212 | \ |
duke@435 | 1213 | product(bool, UseParNewGC, false, \ |
duke@435 | 1214 | "Use parallel threads in the new generation.") \ |
duke@435 | 1215 | \ |
duke@435 | 1216 | product(bool, ParallelGCVerbose, false, \ |
duke@435 | 1217 | "Verbose output for parallel GC.") \ |
duke@435 | 1218 | \ |
duke@435 | 1219 | product(intx, ParallelGCBufferWastePct, 10, \ |
duke@435 | 1220 | "wasted fraction of parallel allocation buffer.") \ |
duke@435 | 1221 | \ |
duke@435 | 1222 | product(bool, ParallelGCRetainPLAB, true, \ |
duke@435 | 1223 | "Retain parallel allocation buffers across scavenges.") \ |
duke@435 | 1224 | \ |
duke@435 | 1225 | product(intx, TargetPLABWastePct, 10, \ |
duke@435 | 1226 | "target wasted space in last buffer as pct of overall allocation")\ |
duke@435 | 1227 | \ |
duke@435 | 1228 | product(uintx, PLABWeight, 75, \ |
duke@435 | 1229 | "Percentage (0-100) used to weight the current sample when" \ |
duke@435 | 1230 | "computing exponentially decaying average for ResizePLAB.") \ |
duke@435 | 1231 | \ |
duke@435 | 1232 | product(bool, ResizePLAB, true, \ |
duke@435 | 1233 | "Dynamically resize (survivor space) promotion labs") \ |
duke@435 | 1234 | \ |
duke@435 | 1235 | product(bool, PrintPLAB, false, \ |
duke@435 | 1236 | "Print (survivor space) promotion labs sizing decisions") \ |
duke@435 | 1237 | \ |
duke@435 | 1238 | product(intx, ParGCArrayScanChunk, 50, \ |
duke@435 | 1239 | "Scan a subset and push remainder, if array is bigger than this") \ |
duke@435 | 1240 | \ |
duke@435 | 1241 | product(intx, ParGCDesiredObjsFromOverflowList, 20, \ |
duke@435 | 1242 | "The desired number of objects to claim from the overflow list") \ |
duke@435 | 1243 | \ |
duke@435 | 1244 | product(uintx, CMSParPromoteBlocksToClaim, 50, \ |
duke@435 | 1245 | "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
duke@435 | 1246 | "parallel GC.") \ |
duke@435 | 1247 | \ |
duke@435 | 1248 | product(bool, AlwaysPreTouch, false, \ |
duke@435 | 1249 | "It forces all freshly committed pages to be pre-touched.") \ |
duke@435 | 1250 | \ |
duke@435 | 1251 | product(bool, CMSUseOldDefaults, false, \ |
duke@435 | 1252 | "A flag temporarily introduced to allow reverting to some older" \ |
duke@435 | 1253 | "default settings; older as of 6.0 ") \ |
duke@435 | 1254 | \ |
duke@435 | 1255 | product(intx, CMSYoungGenPerWorker, 16*M, \ |
duke@435 | 1256 | "The amount of young gen chosen by default per GC worker " \ |
duke@435 | 1257 | "thread available ") \ |
duke@435 | 1258 | \ |
duke@435 | 1259 | product(bool, CMSIncrementalMode, false, \ |
duke@435 | 1260 | "Whether CMS GC should operate in \"incremental\" mode") \ |
duke@435 | 1261 | \ |
duke@435 | 1262 | product(uintx, CMSIncrementalDutyCycle, 10, \ |
duke@435 | 1263 | "CMS incremental mode duty cycle (a percentage, 0-100). If" \ |
duke@435 | 1264 | "CMSIncrementalPacing is enabled, then this is just the initial" \ |
duke@435 | 1265 | "value") \ |
duke@435 | 1266 | \ |
duke@435 | 1267 | product(bool, CMSIncrementalPacing, true, \ |
duke@435 | 1268 | "Whether the CMS incremental mode duty cycle should be " \ |
duke@435 | 1269 | "automatically adjusted") \ |
duke@435 | 1270 | \ |
duke@435 | 1271 | product(uintx, CMSIncrementalDutyCycleMin, 0, \ |
duke@435 | 1272 | "Lower bound on the duty cycle when CMSIncrementalPacing is" \ |
duke@435 | 1273 | "enabled (a percentage, 0-100).") \ |
duke@435 | 1274 | \ |
duke@435 | 1275 | product(uintx, CMSIncrementalSafetyFactor, 10, \ |
duke@435 | 1276 | "Percentage (0-100) used to add conservatism when computing the" \ |
duke@435 | 1277 | "duty cycle.") \ |
duke@435 | 1278 | \ |
duke@435 | 1279 | product(uintx, CMSIncrementalOffset, 0, \ |
duke@435 | 1280 | "Percentage (0-100) by which the CMS incremental mode duty cycle" \ |
duke@435 | 1281 | "is shifted to the right within the period between young GCs") \ |
duke@435 | 1282 | \ |
duke@435 | 1283 | product(uintx, CMSExpAvgFactor, 25, \ |
duke@435 | 1284 | "Percentage (0-100) used to weight the current sample when" \ |
duke@435 | 1285 | "computing exponential averages for CMS statistics.") \ |
duke@435 | 1286 | \ |
duke@435 | 1287 | product(uintx, CMS_FLSWeight, 50, \ |
duke@435 | 1288 | "Percentage (0-100) used to weight the current sample when" \ |
duke@435 | 1289 | "computing exponentially decating averages for CMS FLS statistics.") \ |
duke@435 | 1290 | \ |
duke@435 | 1291 | product(uintx, CMS_FLSPadding, 2, \ |
duke@435 | 1292 | "The multiple of deviation from mean to use for buffering" \ |
duke@435 | 1293 | "against volatility in free list demand.") \ |
duke@435 | 1294 | \ |
duke@435 | 1295 | product(uintx, FLSCoalescePolicy, 2, \ |
duke@435 | 1296 | "CMS: Aggression level for coalescing, increasing from 0 to 4") \ |
duke@435 | 1297 | \ |
duke@435 | 1298 | product(uintx, CMS_SweepWeight, 50, \ |
duke@435 | 1299 | "Percentage (0-100) used to weight the current sample when" \ |
duke@435 | 1300 | "computing exponentially decaying average for inter-sweep duration.") \ |
duke@435 | 1301 | \ |
duke@435 | 1302 | product(uintx, CMS_SweepPadding, 2, \ |
duke@435 | 1303 | "The multiple of deviation from mean to use for buffering" \ |
duke@435 | 1304 | "against volatility in inter-sweep duration.") \ |
duke@435 | 1305 | \ |
duke@435 | 1306 | product(uintx, CMS_SweepTimerThresholdMillis, 10, \ |
duke@435 | 1307 | "Skip block flux-rate sampling for an epoch unless inter-sweep " \ |
duke@435 | 1308 | " duration exceeds this threhold in milliseconds") \ |
duke@435 | 1309 | \ |
duke@435 | 1310 | develop(bool, CMSTraceIncrementalMode, false, \ |
duke@435 | 1311 | "Trace CMS incremental mode") \ |
duke@435 | 1312 | \ |
duke@435 | 1313 | develop(bool, CMSTraceIncrementalPacing, false, \ |
duke@435 | 1314 | "Trace CMS incremental mode pacing computation") \ |
duke@435 | 1315 | \ |
duke@435 | 1316 | develop(bool, CMSTraceThreadState, false, \ |
duke@435 | 1317 | "Trace the CMS thread state (enable the trace_state() method)") \ |
duke@435 | 1318 | \ |
duke@435 | 1319 | product(bool, CMSClassUnloadingEnabled, false, \ |
duke@435 | 1320 | "Whether class unloading enabled when using CMS GC") \ |
duke@435 | 1321 | \ |
duke@435 | 1322 | product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
duke@435 | 1323 | "Compact when asked to collect CMS gen with clear_all_soft_refs") \ |
duke@435 | 1324 | \ |
duke@435 | 1325 | product(bool, UseCMSCompactAtFullCollection, true, \ |
duke@435 | 1326 | "Use mark sweep compact at full collections") \ |
duke@435 | 1327 | \ |
duke@435 | 1328 | product(uintx, CMSFullGCsBeforeCompaction, 0, \ |
duke@435 | 1329 | "Number of CMS full collection done before compaction if > 0") \ |
duke@435 | 1330 | \ |
duke@435 | 1331 | develop(intx, CMSDictionaryChoice, 0, \ |
duke@435 | 1332 | "Use BinaryTreeDictionary as default in the CMS generation") \ |
duke@435 | 1333 | \ |
duke@435 | 1334 | product(uintx, CMSIndexedFreeListReplenish, 4, \ |
duke@435 | 1335 | "Replenish and indexed free list with this number of chunks") \ |
duke@435 | 1336 | \ |
duke@435 | 1337 | product(bool, CMSLoopWarn, false, \ |
duke@435 | 1338 | "Warn in case of excessive CMS looping") \ |
duke@435 | 1339 | \ |
duke@435 | 1340 | develop(bool, CMSOverflowEarlyRestoration, false, \ |
duke@435 | 1341 | "Whether preserved marks should be restored early") \ |
duke@435 | 1342 | \ |
duke@435 | 1343 | product(uintx, CMSMarkStackSize, 32*K, \ |
duke@435 | 1344 | "Size of CMS marking stack") \ |
duke@435 | 1345 | \ |
duke@435 | 1346 | product(uintx, CMSMarkStackSizeMax, 4*M, \ |
duke@435 | 1347 | "Max size of CMS marking stack") \ |
duke@435 | 1348 | \ |
duke@435 | 1349 | notproduct(bool, CMSMarkStackOverflowALot, false, \ |
duke@435 | 1350 | "Whether we should simulate frequent marking stack / work queue" \ |
duke@435 | 1351 | " overflow") \ |
duke@435 | 1352 | \ |
duke@435 | 1353 | notproduct(intx, CMSMarkStackOverflowInterval, 1000, \ |
duke@435 | 1354 | "A per-thread `interval' counter that determines how frequently" \ |
duke@435 | 1355 | " we simulate overflow; a smaller number increases frequency") \ |
duke@435 | 1356 | \ |
duke@435 | 1357 | product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ |
duke@435 | 1358 | "(Temporary, subject to experimentation)" \ |
duke@435 | 1359 | "Maximum number of abortable preclean iterations, if > 0") \ |
duke@435 | 1360 | \ |
duke@435 | 1361 | product(intx, CMSMaxAbortablePrecleanTime, 5000, \ |
duke@435 | 1362 | "(Temporary, subject to experimentation)" \ |
duke@435 | 1363 | "Maximum time in abortable preclean in ms") \ |
duke@435 | 1364 | \ |
duke@435 | 1365 | product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ |
duke@435 | 1366 | "(Temporary, subject to experimentation)" \ |
duke@435 | 1367 | "Nominal minimum work per abortable preclean iteration") \ |
duke@435 | 1368 | \ |
duke@435 | 1369 | product(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
duke@435 | 1370 | "(Temporary, subject to experimentation)" \ |
duke@435 | 1371 | " Time that we sleep between iterations when not given" \ |
duke@435 | 1372 | " enough work per iteration") \ |
duke@435 | 1373 | \ |
duke@435 | 1374 | product(uintx, CMSRescanMultiple, 32, \ |
duke@435 | 1375 | "Size (in cards) of CMS parallel rescan task") \ |
duke@435 | 1376 | \ |
duke@435 | 1377 | product(uintx, CMSConcMarkMultiple, 32, \ |
duke@435 | 1378 | "Size (in cards) of CMS concurrent MT marking task") \ |
duke@435 | 1379 | \ |
duke@435 | 1380 | product(uintx, CMSRevisitStackSize, 1*M, \ |
duke@435 | 1381 | "Size of CMS KlassKlass revisit stack") \ |
duke@435 | 1382 | \ |
duke@435 | 1383 | product(bool, CMSAbortSemantics, false, \ |
duke@435 | 1384 | "Whether abort-on-overflow semantics is implemented") \ |
duke@435 | 1385 | \ |
duke@435 | 1386 | product(bool, CMSParallelRemarkEnabled, true, \ |
duke@435 | 1387 | "Whether parallel remark enabled (only if ParNewGC)") \ |
duke@435 | 1388 | \ |
duke@435 | 1389 | product(bool, CMSParallelSurvivorRemarkEnabled, true, \ |
duke@435 | 1390 | "Whether parallel remark of survivor space" \ |
duke@435 | 1391 | " enabled (effective only if CMSParallelRemarkEnabled)") \ |
duke@435 | 1392 | \ |
duke@435 | 1393 | product(bool, CMSPLABRecordAlways, true, \ |
duke@435 | 1394 | "Whether to always record survivor space PLAB bdries" \ |
duke@435 | 1395 | " (effective only if CMSParallelSurvivorRemarkEnabled)") \ |
duke@435 | 1396 | \ |
duke@435 | 1397 | product(bool, CMSConcurrentMTEnabled, true, \ |
duke@435 | 1398 | "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ |
duke@435 | 1399 | \ |
duke@435 | 1400 | product(bool, CMSPermGenPrecleaningEnabled, true, \ |
duke@435 | 1401 | "Whether concurrent precleaning enabled in perm gen" \ |
duke@435 | 1402 | " (effective only when CMSPrecleaningEnabled is true)") \ |
duke@435 | 1403 | \ |
duke@435 | 1404 | product(bool, CMSPrecleaningEnabled, true, \ |
duke@435 | 1405 | "Whether concurrent precleaning enabled") \ |
duke@435 | 1406 | \ |
duke@435 | 1407 | product(uintx, CMSPrecleanIter, 3, \ |
duke@435 | 1408 | "Maximum number of precleaning iteration passes") \ |
duke@435 | 1409 | \ |
duke@435 | 1410 | product(uintx, CMSPrecleanNumerator, 2, \ |
duke@435 | 1411 | "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ |
duke@435 | 1412 | " ratio") \ |
duke@435 | 1413 | \ |
duke@435 | 1414 | product(uintx, CMSPrecleanDenominator, 3, \ |
duke@435 | 1415 | "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ |
duke@435 | 1416 | " ratio") \ |
duke@435 | 1417 | \ |
duke@435 | 1418 | product(bool, CMSPrecleanRefLists1, true, \ |
duke@435 | 1419 | "Preclean ref lists during (initial) preclean phase") \ |
duke@435 | 1420 | \ |
duke@435 | 1421 | product(bool, CMSPrecleanRefLists2, false, \ |
duke@435 | 1422 | "Preclean ref lists during abortable preclean phase") \ |
duke@435 | 1423 | \ |
duke@435 | 1424 | product(bool, CMSPrecleanSurvivors1, false, \ |
duke@435 | 1425 | "Preclean survivors during (initial) preclean phase") \ |
duke@435 | 1426 | \ |
duke@435 | 1427 | product(bool, CMSPrecleanSurvivors2, true, \ |
duke@435 | 1428 | "Preclean survivors during abortable preclean phase") \ |
duke@435 | 1429 | \ |
duke@435 | 1430 | product(uintx, CMSPrecleanThreshold, 1000, \ |
duke@435 | 1431 | "Don't re-iterate if #dirty cards less than this") \ |
duke@435 | 1432 | \ |
duke@435 | 1433 | product(bool, CMSCleanOnEnter, true, \ |
duke@435 | 1434 | "Clean-on-enter optimization for reducing number of dirty cards") \ |
duke@435 | 1435 | \ |
duke@435 | 1436 | product(uintx, CMSRemarkVerifyVariant, 1, \ |
duke@435 | 1437 | "Choose variant (1,2) of verification following remark") \ |
duke@435 | 1438 | \ |
duke@435 | 1439 | product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ |
duke@435 | 1440 | "If Eden used is below this value, don't try to schedule remark") \ |
duke@435 | 1441 | \ |
duke@435 | 1442 | product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ |
duke@435 | 1443 | "The Eden occupancy % at which to try and schedule remark pause") \ |
duke@435 | 1444 | \ |
duke@435 | 1445 | product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ |
duke@435 | 1446 | "Start sampling Eden top at least before yg occupancy reaches" \ |
duke@435 | 1447 | " 1/<ratio> of the size at which we plan to schedule remark") \ |
duke@435 | 1448 | \ |
duke@435 | 1449 | product(uintx, CMSSamplingGrain, 16*K, \ |
duke@435 | 1450 | "The minimum distance between eden samples for CMS (see above)") \ |
duke@435 | 1451 | \ |
duke@435 | 1452 | product(bool, CMSScavengeBeforeRemark, false, \ |
duke@435 | 1453 | "Attempt scavenge before the CMS remark step") \ |
duke@435 | 1454 | \ |
duke@435 | 1455 | develop(bool, CMSTraceSweeper, false, \ |
duke@435 | 1456 | "Trace some actions of the CMS sweeper") \ |
duke@435 | 1457 | \ |
duke@435 | 1458 | product(uintx, CMSWorkQueueDrainThreshold, 10, \ |
duke@435 | 1459 | "Don't drain below this size per parallel worker/thief") \ |
duke@435 | 1460 | \ |
duke@435 | 1461 | product(intx, CMSWaitDuration, 2000, \ |
duke@435 | 1462 | "Time in milliseconds that CMS thread waits for young GC") \ |
duke@435 | 1463 | \ |
duke@435 | 1464 | product(bool, CMSYield, true, \ |
duke@435 | 1465 | "Yield between steps of concurrent mark & sweep") \ |
duke@435 | 1466 | \ |
duke@435 | 1467 | product(uintx, CMSBitMapYieldQuantum, 10*M, \ |
duke@435 | 1468 | "Bitmap operations should process at most this many bits" \ |
duke@435 | 1469 | "between yields") \ |
duke@435 | 1470 | \ |
duke@435 | 1471 | diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
duke@435 | 1472 | "Verify that all refs across the FLS boundary " \ |
duke@435 | 1473 | " are to valid objects") \ |
duke@435 | 1474 | \ |
duke@435 | 1475 | diagnostic(bool, FLSVerifyLists, false, \ |
duke@435 | 1476 | "Do lots of (expensive) FreeListSpace verification") \ |
duke@435 | 1477 | \ |
duke@435 | 1478 | diagnostic(bool, FLSVerifyIndexTable, false, \ |
duke@435 | 1479 | "Do lots of (expensive) FLS index table verification") \ |
duke@435 | 1480 | \ |
duke@435 | 1481 | develop(bool, FLSVerifyDictionary, false, \ |
duke@435 | 1482 | "Do lots of (expensive) FLS dictionary verification") \ |
duke@435 | 1483 | \ |
duke@435 | 1484 | develop(bool, VerifyBlockOffsetArray, false, \ |
duke@435 | 1485 | "Do (expensive!) block offset array verification") \ |
duke@435 | 1486 | \ |
duke@435 | 1487 | product(bool, BlockOffsetArrayUseUnallocatedBlock, trueInDebug, \ |
duke@435 | 1488 | "Maintain _unallocated_block in BlockOffsetArray" \ |
duke@435 | 1489 | " (currently applicable only to CMS collector)") \ |
duke@435 | 1490 | \ |
duke@435 | 1491 | develop(bool, TraceCMSState, false, \ |
duke@435 | 1492 | "Trace the state of the CMS collection") \ |
duke@435 | 1493 | \ |
duke@435 | 1494 | product(intx, RefDiscoveryPolicy, 0, \ |
duke@435 | 1495 | "Whether reference-based(0) or referent-based(1)") \ |
duke@435 | 1496 | \ |
duke@435 | 1497 | product(bool, ParallelRefProcEnabled, false, \ |
duke@435 | 1498 | "Enable parallel reference processing whenever possible") \ |
duke@435 | 1499 | \ |
duke@435 | 1500 | product(bool, ParallelRefProcBalancingEnabled, true, \ |
duke@435 | 1501 | "Enable balancing of reference processing queues") \ |
duke@435 | 1502 | \ |
duke@435 | 1503 | product(intx, CMSTriggerRatio, 80, \ |
duke@435 | 1504 | "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
duke@435 | 1505 | " allocated before a CMS collection cycle commences") \ |
duke@435 | 1506 | \ |
duke@435 | 1507 | product(intx, CMSBootstrapOccupancy, 50, \ |
duke@435 | 1508 | "Percentage CMS generation occupancy at which to " \ |
duke@435 | 1509 | " initiate CMS collection for bootstrapping collection stats") \ |
duke@435 | 1510 | \ |
duke@435 | 1511 | product(intx, CMSInitiatingOccupancyFraction, -1, \ |
duke@435 | 1512 | "Percentage CMS generation occupancy to start a CMS collection " \ |
duke@435 | 1513 | " cycle (A negative value means that CMSTirggerRatio is used)") \ |
duke@435 | 1514 | \ |
duke@435 | 1515 | product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
duke@435 | 1516 | "Only use occupancy as a crierion for starting a CMS collection") \ |
duke@435 | 1517 | \ |
duke@435 | 1518 | develop(bool, CMSTestInFreeList, false, \ |
duke@435 | 1519 | "Check if the coalesced range is already in the " \ |
duke@435 | 1520 | "free lists as claimed.") \ |
duke@435 | 1521 | \ |
duke@435 | 1522 | notproduct(bool, CMSVerifyReturnedBytes, false, \ |
duke@435 | 1523 | "Check that all the garbage collected was returned to the " \ |
duke@435 | 1524 | "free lists.") \ |
duke@435 | 1525 | \ |
duke@435 | 1526 | notproduct(bool, ScavengeALot, false, \ |
duke@435 | 1527 | "Force scavenge at every Nth exit from the runtime system " \ |
duke@435 | 1528 | "(N=ScavengeALotInterval)") \ |
duke@435 | 1529 | \ |
duke@435 | 1530 | develop(bool, FullGCALot, false, \ |
duke@435 | 1531 | "Force full gc at every Nth exit from the runtime system " \ |
duke@435 | 1532 | "(N=FullGCALotInterval)") \ |
duke@435 | 1533 | \ |
duke@435 | 1534 | notproduct(bool, GCALotAtAllSafepoints, false, \ |
duke@435 | 1535 | "Enforce ScavengeALot/GCALot at all potential safepoints") \ |
duke@435 | 1536 | \ |
duke@435 | 1537 | product(bool, HandlePromotionFailure, true, \ |
duke@435 | 1538 | "The youngest generation collection does not require" \ |
duke@435 | 1539 | " a guarantee of full promotion of all live objects.") \ |
duke@435 | 1540 | \ |
duke@435 | 1541 | notproduct(bool, PromotionFailureALot, false, \ |
duke@435 | 1542 | "Use promotion failure handling on every youngest generation " \ |
duke@435 | 1543 | "collection") \ |
duke@435 | 1544 | \ |
duke@435 | 1545 | develop(uintx, PromotionFailureALotCount, 1000, \ |
duke@435 | 1546 | "Number of promotion failures occurring at ParGCAllocBuffer" \ |
duke@435 | 1547 | "refill attempts (ParNew) or promotion attempts " \ |
duke@435 | 1548 | "(other young collectors) ") \ |
duke@435 | 1549 | \ |
duke@435 | 1550 | develop(uintx, PromotionFailureALotInterval, 5, \ |
duke@435 | 1551 | "Total collections between promotion failures alot") \ |
duke@435 | 1552 | \ |
duke@435 | 1553 | develop(intx, WorkStealingSleepMillis, 1, \ |
duke@435 | 1554 | "Sleep time when sleep is used for yields") \ |
duke@435 | 1555 | \ |
duke@435 | 1556 | develop(uintx, WorkStealingYieldsBeforeSleep, 1000, \ |
duke@435 | 1557 | "Number of yields before a sleep is done during workstealing") \ |
duke@435 | 1558 | \ |
duke@435 | 1559 | product(uintx, PreserveMarkStackSize, 40, \ |
duke@435 | 1560 | "Size for stack used in promotion failure handling") \ |
duke@435 | 1561 | \ |
duke@435 | 1562 | product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
duke@435 | 1563 | \ |
duke@435 | 1564 | product_pd(bool, ResizeTLAB, \ |
duke@435 | 1565 | "Dynamically resize tlab size for threads") \ |
duke@435 | 1566 | \ |
duke@435 | 1567 | product(bool, ZeroTLAB, false, \ |
duke@435 | 1568 | "Zero out the newly created TLAB") \ |
duke@435 | 1569 | \ |
duke@435 | 1570 | product(bool, PrintTLAB, false, \ |
duke@435 | 1571 | "Print various TLAB related information") \ |
duke@435 | 1572 | \ |
duke@435 | 1573 | product(bool, TLABStats, true, \ |
duke@435 | 1574 | "Print various TLAB related information") \ |
duke@435 | 1575 | \ |
duke@435 | 1576 | product_pd(bool, NeverActAsServerClassMachine, \ |
duke@435 | 1577 | "Never act like a server-class machine") \ |
duke@435 | 1578 | \ |
duke@435 | 1579 | product(bool, AlwaysActAsServerClassMachine, false, \ |
duke@435 | 1580 | "Always act like a server-class machine") \ |
duke@435 | 1581 | \ |
duke@435 | 1582 | product_pd(uintx, DefaultMaxRAM, \ |
duke@435 | 1583 | "Maximum real memory size for setting server class heap size") \ |
duke@435 | 1584 | \ |
duke@435 | 1585 | product(uintx, DefaultMaxRAMFraction, 4, \ |
duke@435 | 1586 | "Fraction (1/n) of real memory used for server class max heap") \ |
duke@435 | 1587 | \ |
duke@435 | 1588 | product(uintx, DefaultInitialRAMFraction, 64, \ |
duke@435 | 1589 | "Fraction (1/n) of real memory used for server class initial heap") \ |
duke@435 | 1590 | \ |
duke@435 | 1591 | product(bool, UseAutoGCSelectPolicy, false, \ |
duke@435 | 1592 | "Use automatic collection selection policy") \ |
duke@435 | 1593 | \ |
duke@435 | 1594 | product(uintx, AutoGCSelectPauseMillis, 5000, \ |
duke@435 | 1595 | "Automatic GC selection pause threshhold in ms") \ |
duke@435 | 1596 | \ |
duke@435 | 1597 | product(bool, UseAdaptiveSizePolicy, true, \ |
duke@435 | 1598 | "Use adaptive generation sizing policies") \ |
duke@435 | 1599 | \ |
duke@435 | 1600 | product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ |
duke@435 | 1601 | "Use adaptive survivor sizing policies") \ |
duke@435 | 1602 | \ |
duke@435 | 1603 | product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ |
duke@435 | 1604 | "Use adaptive young-old sizing policies at minor collections") \ |
duke@435 | 1605 | \ |
duke@435 | 1606 | product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ |
duke@435 | 1607 | "Use adaptive young-old sizing policies at major collections") \ |
duke@435 | 1608 | \ |
duke@435 | 1609 | product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ |
duke@435 | 1610 | "Use statistics from System.GC for adaptive size policy") \ |
duke@435 | 1611 | \ |
duke@435 | 1612 | product(bool, UseAdaptiveGCBoundary, false, \ |
duke@435 | 1613 | "Allow young-old boundary to move") \ |
duke@435 | 1614 | \ |
duke@435 | 1615 | develop(bool, TraceAdaptiveGCBoundary, false, \ |
duke@435 | 1616 | "Trace young-old boundary moves") \ |
duke@435 | 1617 | \ |
duke@435 | 1618 | develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ |
duke@435 | 1619 | "Resize the virtual spaces of the young or old generations") \ |
duke@435 | 1620 | \ |
duke@435 | 1621 | product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ |
duke@435 | 1622 | "Policy for changeing generation size for throughput goals") \ |
duke@435 | 1623 | \ |
duke@435 | 1624 | product(uintx, AdaptiveSizePausePolicy, 0, \ |
duke@435 | 1625 | "Policy for changing generation size for pause goals") \ |
duke@435 | 1626 | \ |
duke@435 | 1627 | develop(bool, PSAdjustTenuredGenForMinorPause, false, \ |
duke@435 | 1628 | "Adjust tenured generation to achive a minor pause goal") \ |
duke@435 | 1629 | \ |
duke@435 | 1630 | develop(bool, PSAdjustYoungGenForMajorPause, false, \ |
duke@435 | 1631 | "Adjust young generation to achive a major pause goal") \ |
duke@435 | 1632 | \ |
duke@435 | 1633 | product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ |
duke@435 | 1634 | "Number of steps where heuristics is used before data is used") \ |
duke@435 | 1635 | \ |
duke@435 | 1636 | develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ |
duke@435 | 1637 | "Number of collections before the adaptive sizing is started") \ |
duke@435 | 1638 | \ |
duke@435 | 1639 | product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ |
duke@435 | 1640 | "Collecton interval for printing information, zero => never") \ |
duke@435 | 1641 | \ |
duke@435 | 1642 | product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ |
duke@435 | 1643 | "Use adaptive minimum footprint as a goal") \ |
duke@435 | 1644 | \ |
duke@435 | 1645 | product(uintx, AdaptiveSizePolicyWeight, 10, \ |
duke@435 | 1646 | "Weight given to exponential resizing, between 0 and 100") \ |
duke@435 | 1647 | \ |
duke@435 | 1648 | product(uintx, AdaptiveTimeWeight, 25, \ |
duke@435 | 1649 | "Weight given to time in adaptive policy, between 0 and 100") \ |
duke@435 | 1650 | \ |
duke@435 | 1651 | product(uintx, PausePadding, 1, \ |
duke@435 | 1652 | "How much buffer to keep for pause time") \ |
duke@435 | 1653 | \ |
duke@435 | 1654 | product(uintx, PromotedPadding, 3, \ |
duke@435 | 1655 | "How much buffer to keep for promotion failure") \ |
duke@435 | 1656 | \ |
duke@435 | 1657 | product(uintx, SurvivorPadding, 3, \ |
duke@435 | 1658 | "How much buffer to keep for survivor overflow") \ |
duke@435 | 1659 | \ |
duke@435 | 1660 | product(uintx, AdaptivePermSizeWeight, 20, \ |
duke@435 | 1661 | "Weight for perm gen exponential resizing, between 0 and 100") \ |
duke@435 | 1662 | \ |
duke@435 | 1663 | product(uintx, PermGenPadding, 3, \ |
duke@435 | 1664 | "How much buffer to keep for perm gen sizing") \ |
duke@435 | 1665 | \ |
duke@435 | 1666 | product(uintx, ThresholdTolerance, 10, \ |
duke@435 | 1667 | "Allowed collection cost difference between generations") \ |
duke@435 | 1668 | \ |
duke@435 | 1669 | product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ |
duke@435 | 1670 | "If collection costs are within margin, reduce both by full delta") \ |
duke@435 | 1671 | \ |
duke@435 | 1672 | product(uintx, YoungGenerationSizeIncrement, 20, \ |
duke@435 | 1673 | "Adaptive size percentage change in young generation") \ |
duke@435 | 1674 | \ |
duke@435 | 1675 | product(uintx, YoungGenerationSizeSupplement, 80, \ |
duke@435 | 1676 | "Supplement to YoungedGenerationSizeIncrement used at startup") \ |
duke@435 | 1677 | \ |
duke@435 | 1678 | product(uintx, YoungGenerationSizeSupplementDecay, 8, \ |
duke@435 | 1679 | "Decay factor to YoungedGenerationSizeSupplement") \ |
duke@435 | 1680 | \ |
duke@435 | 1681 | product(uintx, TenuredGenerationSizeIncrement, 20, \ |
duke@435 | 1682 | "Adaptive size percentage change in tenured generation") \ |
duke@435 | 1683 | \ |
duke@435 | 1684 | product(uintx, TenuredGenerationSizeSupplement, 80, \ |
duke@435 | 1685 | "Supplement to TenuredGenerationSizeIncrement used at startup") \ |
duke@435 | 1686 | \ |
duke@435 | 1687 | product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ |
duke@435 | 1688 | "Decay factor to TenuredGenerationSizeIncrement") \ |
duke@435 | 1689 | \ |
duke@435 | 1690 | product(uintx, MaxGCPauseMillis, max_uintx, \ |
duke@435 | 1691 | "Adaptive size policy maximum GC pause time goal in msec") \ |
duke@435 | 1692 | \ |
duke@435 | 1693 | product(uintx, MaxGCMinorPauseMillis, max_uintx, \ |
duke@435 | 1694 | "Adaptive size policy maximum GC minor pause time goal in msec") \ |
duke@435 | 1695 | \ |
duke@435 | 1696 | product(uintx, GCTimeRatio, 99, \ |
duke@435 | 1697 | "Adaptive size policy application time to GC time ratio") \ |
duke@435 | 1698 | \ |
duke@435 | 1699 | product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ |
duke@435 | 1700 | "Adaptive size scale down factor for shrinking") \ |
duke@435 | 1701 | \ |
duke@435 | 1702 | product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ |
duke@435 | 1703 | "Adaptive size decays the major cost for long major intervals") \ |
duke@435 | 1704 | \ |
duke@435 | 1705 | product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ |
duke@435 | 1706 | "Time scale over which major costs decay") \ |
duke@435 | 1707 | \ |
duke@435 | 1708 | product(uintx, MinSurvivorRatio, 3, \ |
duke@435 | 1709 | "Minimum ratio of young generation/survivor space size") \ |
duke@435 | 1710 | \ |
duke@435 | 1711 | product(uintx, InitialSurvivorRatio, 8, \ |
duke@435 | 1712 | "Initial ratio of eden/survivor space size") \ |
duke@435 | 1713 | \ |
duke@435 | 1714 | product(uintx, BaseFootPrintEstimate, 256*M, \ |
duke@435 | 1715 | "Estimate of footprint other than Java Heap") \ |
duke@435 | 1716 | \ |
duke@435 | 1717 | product(bool, UseGCOverheadLimit, true, \ |
duke@435 | 1718 | "Use policy to limit of proportion of time spent in GC " \ |
duke@435 | 1719 | "before an OutOfMemory error is thrown") \ |
duke@435 | 1720 | \ |
duke@435 | 1721 | product(uintx, GCTimeLimit, 98, \ |
duke@435 | 1722 | "Limit of proportion of time spent in GC before an OutOfMemory" \ |
duke@435 | 1723 | "error is thrown (used with GCHeapFreeLimit)") \ |
duke@435 | 1724 | \ |
duke@435 | 1725 | product(uintx, GCHeapFreeLimit, 2, \ |
duke@435 | 1726 | "Minimum percentage of free space after a full GC before an " \ |
duke@435 | 1727 | "OutOfMemoryError is thrown (used with GCTimeLimit)") \ |
duke@435 | 1728 | \ |
duke@435 | 1729 | develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ |
duke@435 | 1730 | "Number of consecutive collections before gc time limit fires") \ |
duke@435 | 1731 | \ |
duke@435 | 1732 | product(bool, PrintAdaptiveSizePolicy, false, \ |
duke@435 | 1733 | "Print information about AdaptiveSizePolicy") \ |
duke@435 | 1734 | \ |
duke@435 | 1735 | product(intx, PrefetchCopyIntervalInBytes, -1, \ |
duke@435 | 1736 | "How far ahead to prefetch destination area (<= 0 means off)") \ |
duke@435 | 1737 | \ |
duke@435 | 1738 | product(intx, PrefetchScanIntervalInBytes, -1, \ |
duke@435 | 1739 | "How far ahead to prefetch scan area (<= 0 means off)") \ |
duke@435 | 1740 | \ |
duke@435 | 1741 | product(intx, PrefetchFieldsAhead, -1, \ |
duke@435 | 1742 | "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ |
duke@435 | 1743 | \ |
duke@435 | 1744 | develop(bool, UsePrefetchQueue, true, \ |
duke@435 | 1745 | "Use the prefetch queue during PS promotion") \ |
duke@435 | 1746 | \ |
duke@435 | 1747 | diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
duke@435 | 1748 | "Verify system before exiting") \ |
duke@435 | 1749 | \ |
duke@435 | 1750 | diagnostic(bool, VerifyBeforeGC, false, \ |
duke@435 | 1751 | "Verify memory system before GC") \ |
duke@435 | 1752 | \ |
duke@435 | 1753 | diagnostic(bool, VerifyAfterGC, false, \ |
duke@435 | 1754 | "Verify memory system after GC") \ |
duke@435 | 1755 | \ |
duke@435 | 1756 | diagnostic(bool, VerifyDuringGC, false, \ |
duke@435 | 1757 | "Verify memory system during GC (between phases)") \ |
duke@435 | 1758 | \ |
duke@435 | 1759 | diagnostic(bool, VerifyRememberedSets, false, \ |
duke@435 | 1760 | "Verify GC remembered sets") \ |
duke@435 | 1761 | \ |
duke@435 | 1762 | diagnostic(bool, VerifyObjectStartArray, true, \ |
duke@435 | 1763 | "Verify GC object start array if verify before/after") \ |
duke@435 | 1764 | \ |
duke@435 | 1765 | product(bool, DisableExplicitGC, false, \ |
duke@435 | 1766 | "Tells whether calling System.gc() does a full GC") \ |
duke@435 | 1767 | \ |
duke@435 | 1768 | notproduct(bool, CheckMemoryInitialization, false, \ |
duke@435 | 1769 | "Checks memory initialization") \ |
duke@435 | 1770 | \ |
duke@435 | 1771 | product(bool, CollectGen0First, false, \ |
duke@435 | 1772 | "Collect youngest generation before each full GC") \ |
duke@435 | 1773 | \ |
duke@435 | 1774 | diagnostic(bool, BindCMSThreadToCPU, false, \ |
duke@435 | 1775 | "Bind CMS Thread to CPU if possible") \ |
duke@435 | 1776 | \ |
duke@435 | 1777 | diagnostic(uintx, CPUForCMSThread, 0, \ |
duke@435 | 1778 | "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ |
duke@435 | 1779 | \ |
duke@435 | 1780 | product(bool, BindGCTaskThreadsToCPUs, false, \ |
duke@435 | 1781 | "Bind GCTaskThreads to CPUs if possible") \ |
duke@435 | 1782 | \ |
duke@435 | 1783 | product(bool, UseGCTaskAffinity, false, \ |
duke@435 | 1784 | "Use worker affinity when asking for GCTasks") \ |
duke@435 | 1785 | \ |
duke@435 | 1786 | product(uintx, ProcessDistributionStride, 4, \ |
duke@435 | 1787 | "Stride through processors when distributing processes") \ |
duke@435 | 1788 | \ |
duke@435 | 1789 | product(uintx, CMSCoordinatorYieldSleepCount, 10, \ |
duke@435 | 1790 | "number of times the coordinator GC thread will sleep while " \ |
duke@435 | 1791 | "yielding before giving up and resuming GC") \ |
duke@435 | 1792 | \ |
duke@435 | 1793 | product(uintx, CMSYieldSleepCount, 0, \ |
duke@435 | 1794 | "number of times a GC thread (minus the coordinator) " \ |
duke@435 | 1795 | "will sleep while yielding before giving up and resuming GC") \ |
duke@435 | 1796 | \ |
jmasa@445 | 1797 | notproduct(bool, PrintFlagsFinal, false, \ |
jmasa@445 | 1798 | "Print all command line flags after argument processing") \ |
jmasa@445 | 1799 | \ |
duke@435 | 1800 | /* gc tracing */ \ |
duke@435 | 1801 | manageable(bool, PrintGC, false, \ |
duke@435 | 1802 | "Print message at garbage collect") \ |
duke@435 | 1803 | \ |
duke@435 | 1804 | manageable(bool, PrintGCDetails, false, \ |
duke@435 | 1805 | "Print more details at garbage collect") \ |
duke@435 | 1806 | \ |
duke@435 | 1807 | manageable(bool, PrintGCDateStamps, false, \ |
duke@435 | 1808 | "Print date stamps at garbage collect") \ |
duke@435 | 1809 | \ |
duke@435 | 1810 | manageable(bool, PrintGCTimeStamps, false, \ |
duke@435 | 1811 | "Print timestamps at garbage collect") \ |
duke@435 | 1812 | \ |
duke@435 | 1813 | product(bool, PrintGCTaskTimeStamps, false, \ |
duke@435 | 1814 | "Print timestamps for individual gc worker thread tasks") \ |
duke@435 | 1815 | \ |
duke@435 | 1816 | develop(intx, ConcGCYieldTimeout, 0, \ |
duke@435 | 1817 | "If non-zero, assert that GC threads yield within this # of ms.") \ |
duke@435 | 1818 | \ |
duke@435 | 1819 | notproduct(bool, TraceMarkSweep, false, \ |
duke@435 | 1820 | "Trace mark sweep") \ |
duke@435 | 1821 | \ |
duke@435 | 1822 | product(bool, PrintReferenceGC, false, \ |
duke@435 | 1823 | "Print times spent handling reference objects during GC " \ |
duke@435 | 1824 | " (enabled only when PrintGCDetails)") \ |
duke@435 | 1825 | \ |
duke@435 | 1826 | develop(bool, TraceReferenceGC, false, \ |
duke@435 | 1827 | "Trace handling of soft/weak/final/phantom references") \ |
duke@435 | 1828 | \ |
duke@435 | 1829 | develop(bool, TraceFinalizerRegistration, false, \ |
duke@435 | 1830 | "Trace registration of final references") \ |
duke@435 | 1831 | \ |
duke@435 | 1832 | notproduct(bool, TraceScavenge, false, \ |
duke@435 | 1833 | "Trace scavenge") \ |
duke@435 | 1834 | \ |
duke@435 | 1835 | product_rw(bool, TraceClassLoading, false, \ |
duke@435 | 1836 | "Trace all classes loaded") \ |
duke@435 | 1837 | \ |
duke@435 | 1838 | product(bool, TraceClassLoadingPreorder, false, \ |
duke@435 | 1839 | "Trace all classes loaded in order referenced (not loaded)") \ |
duke@435 | 1840 | \ |
duke@435 | 1841 | product_rw(bool, TraceClassUnloading, false, \ |
duke@435 | 1842 | "Trace unloading of classes") \ |
duke@435 | 1843 | \ |
duke@435 | 1844 | product_rw(bool, TraceLoaderConstraints, false, \ |
duke@435 | 1845 | "Trace loader constraints") \ |
duke@435 | 1846 | \ |
duke@435 | 1847 | product(bool, TraceGen0Time, false, \ |
duke@435 | 1848 | "Trace accumulated time for Gen 0 collection") \ |
duke@435 | 1849 | \ |
duke@435 | 1850 | product(bool, TraceGen1Time, false, \ |
duke@435 | 1851 | "Trace accumulated time for Gen 1 collection") \ |
duke@435 | 1852 | \ |
duke@435 | 1853 | product(bool, PrintTenuringDistribution, false, \ |
duke@435 | 1854 | "Print tenuring age information") \ |
duke@435 | 1855 | \ |
duke@435 | 1856 | product_rw(bool, PrintHeapAtGC, false, \ |
duke@435 | 1857 | "Print heap layout before and after each GC") \ |
duke@435 | 1858 | \ |
duke@435 | 1859 | product(bool, PrintHeapAtSIGBREAK, true, \ |
duke@435 | 1860 | "Print heap layout in response to SIGBREAK") \ |
duke@435 | 1861 | \ |
duke@435 | 1862 | manageable(bool, PrintClassHistogram, false, \ |
duke@435 | 1863 | "Print a histogram of class instances") \ |
duke@435 | 1864 | \ |
duke@435 | 1865 | develop(bool, TraceWorkGang, false, \ |
duke@435 | 1866 | "Trace activities of work gangs") \ |
duke@435 | 1867 | \ |
duke@435 | 1868 | product(bool, TraceParallelOldGCTasks, false, \ |
duke@435 | 1869 | "Trace multithreaded GC activity") \ |
duke@435 | 1870 | \ |
duke@435 | 1871 | develop(bool, TraceBlockOffsetTable, false, \ |
duke@435 | 1872 | "Print BlockOffsetTable maps") \ |
duke@435 | 1873 | \ |
duke@435 | 1874 | develop(bool, TraceCardTableModRefBS, false, \ |
duke@435 | 1875 | "Print CardTableModRefBS maps") \ |
duke@435 | 1876 | \ |
duke@435 | 1877 | develop(bool, TraceGCTaskManager, false, \ |
duke@435 | 1878 | "Trace actions of the GC task manager") \ |
duke@435 | 1879 | \ |
duke@435 | 1880 | develop(bool, TraceGCTaskQueue, false, \ |
duke@435 | 1881 | "Trace actions of the GC task queues") \ |
duke@435 | 1882 | \ |
duke@435 | 1883 | develop(bool, TraceGCTaskThread, false, \ |
duke@435 | 1884 | "Trace actions of the GC task threads") \ |
duke@435 | 1885 | \ |
duke@435 | 1886 | product(bool, PrintParallelOldGCPhaseTimes, false, \ |
duke@435 | 1887 | "Print the time taken by each parallel old gc phase." \ |
duke@435 | 1888 | "PrintGCDetails must also be enabled.") \ |
duke@435 | 1889 | \ |
duke@435 | 1890 | develop(bool, TraceParallelOldGCMarkingPhase, false, \ |
duke@435 | 1891 | "Trace parallel old gc marking phase") \ |
duke@435 | 1892 | \ |
duke@435 | 1893 | develop(bool, TraceParallelOldGCSummaryPhase, false, \ |
duke@435 | 1894 | "Trace parallel old gc summary phase") \ |
duke@435 | 1895 | \ |
duke@435 | 1896 | develop(bool, TraceParallelOldGCCompactionPhase, false, \ |
duke@435 | 1897 | "Trace parallel old gc compaction phase") \ |
duke@435 | 1898 | \ |
duke@435 | 1899 | develop(bool, TraceParallelOldGCDensePrefix, false, \ |
duke@435 | 1900 | "Trace parallel old gc dense prefix computation") \ |
duke@435 | 1901 | \ |
duke@435 | 1902 | develop(bool, IgnoreLibthreadGPFault, false, \ |
duke@435 | 1903 | "Suppress workaround for libthread GP fault") \ |
duke@435 | 1904 | \ |
duke@435 | 1905 | /* JVMTI heap profiling */ \ |
duke@435 | 1906 | \ |
duke@435 | 1907 | diagnostic(bool, TraceJVMTIObjectTagging, false, \ |
duke@435 | 1908 | "Trace JVMTI object tagging calls") \ |
duke@435 | 1909 | \ |
duke@435 | 1910 | diagnostic(bool, VerifyBeforeIteration, false, \ |
duke@435 | 1911 | "Verify memory system before JVMTI iteration") \ |
duke@435 | 1912 | \ |
duke@435 | 1913 | /* compiler interface */ \ |
duke@435 | 1914 | \ |
duke@435 | 1915 | develop(bool, CIPrintCompilerName, false, \ |
duke@435 | 1916 | "when CIPrint is active, print the name of the active compiler") \ |
duke@435 | 1917 | \ |
duke@435 | 1918 | develop(bool, CIPrintCompileQueue, false, \ |
duke@435 | 1919 | "display the contents of the compile queue whenever a " \ |
duke@435 | 1920 | "compilation is enqueued") \ |
duke@435 | 1921 | \ |
duke@435 | 1922 | develop(bool, CIPrintRequests, false, \ |
duke@435 | 1923 | "display every request for compilation") \ |
duke@435 | 1924 | \ |
duke@435 | 1925 | product(bool, CITime, false, \ |
duke@435 | 1926 | "collect timing information for compilation") \ |
duke@435 | 1927 | \ |
duke@435 | 1928 | develop(bool, CITimeEach, false, \ |
duke@435 | 1929 | "display timing information after each successful compilation") \ |
duke@435 | 1930 | \ |
duke@435 | 1931 | develop(bool, CICountOSR, true, \ |
duke@435 | 1932 | "use a separate counter when assigning ids to osr compilations") \ |
duke@435 | 1933 | \ |
duke@435 | 1934 | develop(bool, CICompileNatives, true, \ |
duke@435 | 1935 | "compile native methods if supported by the compiler") \ |
duke@435 | 1936 | \ |
duke@435 | 1937 | develop_pd(bool, CICompileOSR, \ |
duke@435 | 1938 | "compile on stack replacement methods if supported by the " \ |
duke@435 | 1939 | "compiler") \ |
duke@435 | 1940 | \ |
duke@435 | 1941 | develop(bool, CIPrintMethodCodes, false, \ |
duke@435 | 1942 | "print method bytecodes of the compiled code") \ |
duke@435 | 1943 | \ |
duke@435 | 1944 | develop(bool, CIPrintTypeFlow, false, \ |
duke@435 | 1945 | "print the results of ciTypeFlow analysis") \ |
duke@435 | 1946 | \ |
duke@435 | 1947 | develop(bool, CITraceTypeFlow, false, \ |
duke@435 | 1948 | "detailed per-bytecode tracing of ciTypeFlow analysis") \ |
duke@435 | 1949 | \ |
duke@435 | 1950 | develop(intx, CICloneLoopTestLimit, 100, \ |
duke@435 | 1951 | "size limit for blocks heuristically cloned in ciTypeFlow") \ |
duke@435 | 1952 | \ |
duke@435 | 1953 | /* temp diagnostics */ \ |
duke@435 | 1954 | \ |
duke@435 | 1955 | diagnostic(bool, TraceRedundantCompiles, false, \ |
duke@435 | 1956 | "Have compile broker print when a request already in the queue is"\ |
duke@435 | 1957 | " requested again") \ |
duke@435 | 1958 | \ |
duke@435 | 1959 | diagnostic(bool, InitialCompileFast, false, \ |
duke@435 | 1960 | "Initial compile at CompLevel_fast_compile") \ |
duke@435 | 1961 | \ |
duke@435 | 1962 | diagnostic(bool, InitialCompileReallyFast, false, \ |
duke@435 | 1963 | "Initial compile at CompLevel_really_fast_compile (no profile)") \ |
duke@435 | 1964 | \ |
duke@435 | 1965 | diagnostic(bool, FullProfileOnReInterpret, true, \ |
duke@435 | 1966 | "On re-interpret unc-trap compile next at CompLevel_fast_compile")\ |
duke@435 | 1967 | \ |
duke@435 | 1968 | /* compiler */ \ |
duke@435 | 1969 | \ |
duke@435 | 1970 | product(intx, CICompilerCount, CI_COMPILER_COUNT, \ |
duke@435 | 1971 | "Number of compiler threads to run") \ |
duke@435 | 1972 | \ |
duke@435 | 1973 | product(intx, CompilationPolicyChoice, 0, \ |
duke@435 | 1974 | "which compilation policy (0/1)") \ |
duke@435 | 1975 | \ |
duke@435 | 1976 | develop(bool, UseStackBanging, true, \ |
duke@435 | 1977 | "use stack banging for stack overflow checks (required for " \ |
duke@435 | 1978 | "proper StackOverflow handling; disable only to measure cost " \ |
duke@435 | 1979 | "of stackbanging)") \ |
duke@435 | 1980 | \ |
duke@435 | 1981 | develop(bool, Use24BitFPMode, true, \ |
duke@435 | 1982 | "Set 24-bit FPU mode on a per-compile basis ") \ |
duke@435 | 1983 | \ |
duke@435 | 1984 | develop(bool, Use24BitFP, true, \ |
duke@435 | 1985 | "use FP instructions that produce 24-bit precise results") \ |
duke@435 | 1986 | \ |
duke@435 | 1987 | develop(bool, UseStrictFP, true, \ |
duke@435 | 1988 | "use strict fp if modifier strictfp is set") \ |
duke@435 | 1989 | \ |
duke@435 | 1990 | develop(bool, GenerateSynchronizationCode, true, \ |
duke@435 | 1991 | "generate locking/unlocking code for synchronized methods and " \ |
duke@435 | 1992 | "monitors") \ |
duke@435 | 1993 | \ |
duke@435 | 1994 | develop(bool, GenerateCompilerNullChecks, true, \ |
duke@435 | 1995 | "Generate explicit null checks for loads/stores/calls") \ |
duke@435 | 1996 | \ |
duke@435 | 1997 | develop(bool, GenerateRangeChecks, true, \ |
duke@435 | 1998 | "Generate range checks for array accesses") \ |
duke@435 | 1999 | \ |
duke@435 | 2000 | develop_pd(bool, ImplicitNullChecks, \ |
duke@435 | 2001 | "generate code for implicit null checks") \ |
duke@435 | 2002 | \ |
duke@435 | 2003 | product(bool, PrintSafepointStatistics, false, \ |
duke@435 | 2004 | "print statistics about safepoint synchronization") \ |
duke@435 | 2005 | \ |
duke@435 | 2006 | product(intx, PrintSafepointStatisticsCount, 300, \ |
duke@435 | 2007 | "total number of safepoint statistics collected " \ |
duke@435 | 2008 | "before printing them out") \ |
duke@435 | 2009 | \ |
duke@435 | 2010 | product(intx, PrintSafepointStatisticsTimeout, -1, \ |
duke@435 | 2011 | "print safepoint statistics only when safepoint takes" \ |
duke@435 | 2012 | " more than PrintSafepointSatisticsTimeout in millis") \ |
duke@435 | 2013 | \ |
duke@435 | 2014 | develop(bool, InlineAccessors, true, \ |
duke@435 | 2015 | "inline accessor methods (get/set)") \ |
duke@435 | 2016 | \ |
duke@435 | 2017 | product(bool, Inline, true, \ |
duke@435 | 2018 | "enable inlining") \ |
duke@435 | 2019 | \ |
duke@435 | 2020 | product(bool, ClipInlining, true, \ |
duke@435 | 2021 | "clip inlining if aggregate method exceeds DesiredMethodLimit") \ |
duke@435 | 2022 | \ |
duke@435 | 2023 | develop(bool, UseCHA, true, \ |
duke@435 | 2024 | "enable CHA") \ |
duke@435 | 2025 | \ |
duke@435 | 2026 | product(bool, UseTypeProfile, true, \ |
duke@435 | 2027 | "Check interpreter profile for historically monomorphic calls") \ |
duke@435 | 2028 | \ |
duke@435 | 2029 | product(intx, TypeProfileMajorReceiverPercent, 90, \ |
duke@435 | 2030 | "% of major receiver type to all profiled receivers") \ |
duke@435 | 2031 | \ |
duke@435 | 2032 | notproduct(bool, TimeCompiler, false, \ |
duke@435 | 2033 | "time the compiler") \ |
duke@435 | 2034 | \ |
duke@435 | 2035 | notproduct(bool, TimeCompiler2, false, \ |
duke@435 | 2036 | "detailed time the compiler (requires +TimeCompiler)") \ |
duke@435 | 2037 | \ |
duke@435 | 2038 | diagnostic(bool, PrintInlining, false, \ |
duke@435 | 2039 | "prints inlining optimizations") \ |
duke@435 | 2040 | \ |
duke@435 | 2041 | diagnostic(bool, PrintIntrinsics, false, \ |
duke@435 | 2042 | "prints attempted and successful inlining of intrinsics") \ |
duke@435 | 2043 | \ |
duke@435 | 2044 | diagnostic(ccstrlist, DisableIntrinsic, "", \ |
duke@435 | 2045 | "do not expand intrinsics whose (internal) names appear here") \ |
duke@435 | 2046 | \ |
duke@435 | 2047 | develop(bool, StressReflectiveCode, false, \ |
duke@435 | 2048 | "Use inexact types at allocations, etc., to test reflection") \ |
duke@435 | 2049 | \ |
duke@435 | 2050 | develop(bool, EagerInitialization, false, \ |
duke@435 | 2051 | "Eagerly initialize classes if possible") \ |
duke@435 | 2052 | \ |
duke@435 | 2053 | product(bool, Tier1UpdateMethodData, trueInTiered, \ |
duke@435 | 2054 | "Update methodDataOops in Tier1-generated code") \ |
duke@435 | 2055 | \ |
duke@435 | 2056 | develop(bool, TraceMethodReplacement, false, \ |
duke@435 | 2057 | "Print when methods are replaced do to recompilation") \ |
duke@435 | 2058 | \ |
duke@435 | 2059 | develop(bool, PrintMethodFlushing, false, \ |
duke@435 | 2060 | "print the nmethods being flushed") \ |
duke@435 | 2061 | \ |
duke@435 | 2062 | notproduct(bool, LogMultipleMutexLocking, false, \ |
duke@435 | 2063 | "log locking and unlocking of mutexes (only if multiple locks " \ |
duke@435 | 2064 | "are held)") \ |
duke@435 | 2065 | \ |
duke@435 | 2066 | develop(bool, UseRelocIndex, false, \ |
duke@435 | 2067 | "use an index to speed random access to relocations") \ |
duke@435 | 2068 | \ |
duke@435 | 2069 | develop(bool, StressCodeBuffers, false, \ |
duke@435 | 2070 | "Exercise code buffer expansion and other rare state changes") \ |
duke@435 | 2071 | \ |
duke@435 | 2072 | diagnostic(bool, DebugNonSafepoints, trueInDebug, \ |
duke@435 | 2073 | "Generate extra debugging info for non-safepoints in nmethods") \ |
duke@435 | 2074 | \ |
duke@435 | 2075 | diagnostic(bool, DebugInlinedCalls, true, \ |
duke@435 | 2076 | "If false, restricts profiled locations to the root method only") \ |
duke@435 | 2077 | \ |
duke@435 | 2078 | product(bool, PrintVMOptions, trueInDebug, \ |
duke@435 | 2079 | "print VM flag settings") \ |
duke@435 | 2080 | \ |
duke@435 | 2081 | diagnostic(bool, SerializeVMOutput, true, \ |
duke@435 | 2082 | "Use a mutex to serialize output to tty and hotspot.log") \ |
duke@435 | 2083 | \ |
duke@435 | 2084 | diagnostic(bool, DisplayVMOutput, true, \ |
duke@435 | 2085 | "Display all VM output on the tty, independently of LogVMOutput") \ |
duke@435 | 2086 | \ |
duke@435 | 2087 | diagnostic(bool, LogVMOutput, trueInDebug, \ |
duke@435 | 2088 | "Save VM output to hotspot.log, or to LogFile") \ |
duke@435 | 2089 | \ |
duke@435 | 2090 | diagnostic(ccstr, LogFile, NULL, \ |
duke@435 | 2091 | "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ |
duke@435 | 2092 | \ |
duke@435 | 2093 | product(ccstr, ErrorFile, NULL, \ |
duke@435 | 2094 | "If an error occurs, save the error data to this file " \ |
duke@435 | 2095 | "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ |
duke@435 | 2096 | \ |
duke@435 | 2097 | product(bool, DisplayVMOutputToStderr, false, \ |
duke@435 | 2098 | "If DisplayVMOutput is true, display all VM output to stderr") \ |
duke@435 | 2099 | \ |
duke@435 | 2100 | product(bool, DisplayVMOutputToStdout, false, \ |
duke@435 | 2101 | "If DisplayVMOutput is true, display all VM output to stdout") \ |
duke@435 | 2102 | \ |
duke@435 | 2103 | product(bool, UseHeavyMonitors, false, \ |
duke@435 | 2104 | "use heavyweight instead of lightweight Java monitors") \ |
duke@435 | 2105 | \ |
duke@435 | 2106 | notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
duke@435 | 2107 | "print histogram of the symbol table") \ |
duke@435 | 2108 | \ |
duke@435 | 2109 | notproduct(bool, ExitVMOnVerifyError, false, \ |
duke@435 | 2110 | "standard exit from VM if bytecode verify error " \ |
duke@435 | 2111 | "(only in debug mode)") \ |
duke@435 | 2112 | \ |
duke@435 | 2113 | notproduct(ccstr, AbortVMOnException, NULL, \ |
duke@435 | 2114 | "Call fatal if this exception is thrown. Example: " \ |
duke@435 | 2115 | "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ |
duke@435 | 2116 | \ |
duke@435 | 2117 | develop(bool, DebugVtables, false, \ |
duke@435 | 2118 | "add debugging code to vtable dispatch") \ |
duke@435 | 2119 | \ |
duke@435 | 2120 | develop(bool, PrintVtables, false, \ |
duke@435 | 2121 | "print vtables when printing klass") \ |
duke@435 | 2122 | \ |
duke@435 | 2123 | notproduct(bool, PrintVtableStats, false, \ |
duke@435 | 2124 | "print vtables stats at end of run") \ |
duke@435 | 2125 | \ |
duke@435 | 2126 | develop(bool, TraceCreateZombies, false, \ |
duke@435 | 2127 | "trace creation of zombie nmethods") \ |
duke@435 | 2128 | \ |
duke@435 | 2129 | notproduct(bool, IgnoreLockingAssertions, false, \ |
duke@435 | 2130 | "disable locking assertions (for speed)") \ |
duke@435 | 2131 | \ |
duke@435 | 2132 | notproduct(bool, VerifyLoopOptimizations, false, \ |
duke@435 | 2133 | "verify major loop optimizations") \ |
duke@435 | 2134 | \ |
duke@435 | 2135 | product(bool, RangeCheckElimination, true, \ |
duke@435 | 2136 | "Split loop iterations to eliminate range checks") \ |
duke@435 | 2137 | \ |
duke@435 | 2138 | develop_pd(bool, UncommonNullCast, \ |
duke@435 | 2139 | "track occurrences of null in casts; adjust compiler tactics") \ |
duke@435 | 2140 | \ |
duke@435 | 2141 | develop(bool, TypeProfileCasts, true, \ |
duke@435 | 2142 | "treat casts like calls for purposes of type profiling") \ |
duke@435 | 2143 | \ |
duke@435 | 2144 | develop(bool, MonomorphicArrayCheck, true, \ |
duke@435 | 2145 | "Uncommon-trap array store checks that require full type check") \ |
duke@435 | 2146 | \ |
duke@435 | 2147 | develop(bool, DelayCompilationDuringStartup, true, \ |
duke@435 | 2148 | "Delay invoking the compiler until main application class is " \ |
duke@435 | 2149 | "loaded") \ |
duke@435 | 2150 | \ |
duke@435 | 2151 | develop(bool, CompileTheWorld, false, \ |
duke@435 | 2152 | "Compile all methods in all classes in bootstrap class path " \ |
duke@435 | 2153 | "(stress test)") \ |
duke@435 | 2154 | \ |
duke@435 | 2155 | develop(bool, CompileTheWorldPreloadClasses, true, \ |
duke@435 | 2156 | "Preload all classes used by a class before start loading") \ |
duke@435 | 2157 | \ |
duke@435 | 2158 | notproduct(bool, CompileTheWorldIgnoreInitErrors, false, \ |
duke@435 | 2159 | "Compile all methods although class initializer failed") \ |
duke@435 | 2160 | \ |
duke@435 | 2161 | develop(bool, TraceIterativeGVN, false, \ |
duke@435 | 2162 | "Print progress during Iterative Global Value Numbering") \ |
duke@435 | 2163 | \ |
duke@435 | 2164 | develop(bool, FillDelaySlots, true, \ |
duke@435 | 2165 | "Fill delay slots (on SPARC only)") \ |
duke@435 | 2166 | \ |
duke@435 | 2167 | develop(bool, VerifyIterativeGVN, false, \ |
duke@435 | 2168 | "Verify Def-Use modifications during sparse Iterative Global " \ |
duke@435 | 2169 | "Value Numbering") \ |
duke@435 | 2170 | \ |
duke@435 | 2171 | notproduct(bool, TracePhaseCCP, false, \ |
duke@435 | 2172 | "Print progress during Conditional Constant Propagation") \ |
duke@435 | 2173 | \ |
duke@435 | 2174 | develop(bool, TimeLivenessAnalysis, false, \ |
duke@435 | 2175 | "Time computation of bytecode liveness analysis") \ |
duke@435 | 2176 | \ |
duke@435 | 2177 | develop(bool, TraceLivenessGen, false, \ |
duke@435 | 2178 | "Trace the generation of liveness analysis information") \ |
duke@435 | 2179 | \ |
duke@435 | 2180 | notproduct(bool, TraceLivenessQuery, false, \ |
duke@435 | 2181 | "Trace queries of liveness analysis information") \ |
duke@435 | 2182 | \ |
duke@435 | 2183 | notproduct(bool, CollectIndexSetStatistics, false, \ |
duke@435 | 2184 | "Collect information about IndexSets") \ |
duke@435 | 2185 | \ |
duke@435 | 2186 | develop(bool, PrintDominators, false, \ |
duke@435 | 2187 | "Print out dominator trees for GVN") \ |
duke@435 | 2188 | \ |
duke@435 | 2189 | develop(bool, UseLoopSafepoints, true, \ |
duke@435 | 2190 | "Generate Safepoint nodes in every loop") \ |
duke@435 | 2191 | \ |
duke@435 | 2192 | notproduct(bool, TraceCISCSpill, false, \ |
duke@435 | 2193 | "Trace allocators use of cisc spillable instructions") \ |
duke@435 | 2194 | \ |
duke@435 | 2195 | notproduct(bool, TraceSpilling, false, \ |
duke@435 | 2196 | "Trace spilling") \ |
duke@435 | 2197 | \ |
duke@435 | 2198 | develop(bool, DeutschShiffmanExceptions, true, \ |
duke@435 | 2199 | "Fast check to find exception handler for precisely typed " \ |
duke@435 | 2200 | "exceptions") \ |
duke@435 | 2201 | \ |
duke@435 | 2202 | product(bool, SplitIfBlocks, true, \ |
duke@435 | 2203 | "Clone compares and control flow through merge points to fold " \ |
duke@435 | 2204 | "some branches") \ |
duke@435 | 2205 | \ |
duke@435 | 2206 | develop(intx, FastAllocateSizeLimit, 128*K, \ |
duke@435 | 2207 | /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ |
duke@435 | 2208 | "Inline allocations larger than this in doublewords must go slow")\ |
duke@435 | 2209 | \ |
duke@435 | 2210 | product(bool, AggressiveOpts, false, \ |
duke@435 | 2211 | "Enable aggressive optimizations - see arguments.cpp") \ |
duke@435 | 2212 | \ |
duke@435 | 2213 | /* statistics */ \ |
duke@435 | 2214 | develop(bool, UseVTune, false, \ |
duke@435 | 2215 | "enable support for Intel's VTune profiler") \ |
duke@435 | 2216 | \ |
duke@435 | 2217 | develop(bool, CountCompiledCalls, false, \ |
duke@435 | 2218 | "counts method invocations") \ |
duke@435 | 2219 | \ |
duke@435 | 2220 | notproduct(bool, CountRuntimeCalls, false, \ |
duke@435 | 2221 | "counts VM runtime calls") \ |
duke@435 | 2222 | \ |
duke@435 | 2223 | develop(bool, CountJNICalls, false, \ |
duke@435 | 2224 | "counts jni method invocations") \ |
duke@435 | 2225 | \ |
duke@435 | 2226 | notproduct(bool, CountJVMCalls, false, \ |
duke@435 | 2227 | "counts jvm method invocations") \ |
duke@435 | 2228 | \ |
duke@435 | 2229 | notproduct(bool, CountRemovableExceptions, false, \ |
duke@435 | 2230 | "count exceptions that could be replaced by branches due to " \ |
duke@435 | 2231 | "inlining") \ |
duke@435 | 2232 | \ |
duke@435 | 2233 | notproduct(bool, ICMissHistogram, false, \ |
duke@435 | 2234 | "produce histogram of IC misses") \ |
duke@435 | 2235 | \ |
duke@435 | 2236 | notproduct(bool, PrintClassStatistics, false, \ |
duke@435 | 2237 | "prints class statistics at end of run") \ |
duke@435 | 2238 | \ |
duke@435 | 2239 | notproduct(bool, PrintMethodStatistics, false, \ |
duke@435 | 2240 | "prints method statistics at end of run") \ |
duke@435 | 2241 | \ |
duke@435 | 2242 | /* interpreter */ \ |
duke@435 | 2243 | develop(bool, ClearInterpreterLocals, false, \ |
duke@435 | 2244 | "Always clear local variables of interpreter activations upon " \ |
duke@435 | 2245 | "entry") \ |
duke@435 | 2246 | \ |
duke@435 | 2247 | product_pd(bool, RewriteBytecodes, \ |
duke@435 | 2248 | "Allow rewriting of bytecodes (bytecodes are not immutable)") \ |
duke@435 | 2249 | \ |
duke@435 | 2250 | product_pd(bool, RewriteFrequentPairs, \ |
duke@435 | 2251 | "Rewrite frequently used bytecode pairs into a single bytecode") \ |
duke@435 | 2252 | \ |
duke@435 | 2253 | product(bool, PrintInterpreter, false, \ |
duke@435 | 2254 | "Prints the generated interpreter code") \ |
duke@435 | 2255 | \ |
duke@435 | 2256 | product(bool, UseInterpreter, true, \ |
duke@435 | 2257 | "Use interpreter for non-compiled methods") \ |
duke@435 | 2258 | \ |
duke@435 | 2259 | develop(bool, UseFastSignatureHandlers, true, \ |
duke@435 | 2260 | "Use fast signature handlers for native calls") \ |
duke@435 | 2261 | \ |
duke@435 | 2262 | develop(bool, UseV8InstrsOnly, false, \ |
duke@435 | 2263 | "Use SPARC-V8 Compliant instruction subset") \ |
duke@435 | 2264 | \ |
duke@435 | 2265 | product(bool, UseNiagaraInstrs, false, \ |
duke@435 | 2266 | "Use Niagara-efficient instruction subset") \ |
duke@435 | 2267 | \ |
duke@435 | 2268 | develop(bool, UseCASForSwap, false, \ |
duke@435 | 2269 | "Do not use swap instructions, but only CAS (in a loop) on SPARC")\ |
duke@435 | 2270 | \ |
duke@435 | 2271 | product(bool, UseLoopCounter, true, \ |
duke@435 | 2272 | "Increment invocation counter on backward branch") \ |
duke@435 | 2273 | \ |
duke@435 | 2274 | product(bool, UseFastEmptyMethods, true, \ |
duke@435 | 2275 | "Use fast method entry code for empty methods") \ |
duke@435 | 2276 | \ |
duke@435 | 2277 | product(bool, UseFastAccessorMethods, true, \ |
duke@435 | 2278 | "Use fast method entry code for accessor methods") \ |
duke@435 | 2279 | \ |
duke@435 | 2280 | product_pd(bool, UseOnStackReplacement, \ |
duke@435 | 2281 | "Use on stack replacement, calls runtime if invoc. counter " \ |
duke@435 | 2282 | "overflows in loop") \ |
duke@435 | 2283 | \ |
duke@435 | 2284 | notproduct(bool, TraceOnStackReplacement, false, \ |
duke@435 | 2285 | "Trace on stack replacement") \ |
duke@435 | 2286 | \ |
duke@435 | 2287 | develop(bool, PoisonOSREntry, true, \ |
duke@435 | 2288 | "Detect abnormal calls to OSR code") \ |
duke@435 | 2289 | \ |
duke@435 | 2290 | product_pd(bool, PreferInterpreterNativeStubs, \ |
duke@435 | 2291 | "Use always interpreter stubs for native methods invoked via " \ |
duke@435 | 2292 | "interpreter") \ |
duke@435 | 2293 | \ |
duke@435 | 2294 | develop(bool, CountBytecodes, false, \ |
duke@435 | 2295 | "Count number of bytecodes executed") \ |
duke@435 | 2296 | \ |
duke@435 | 2297 | develop(bool, PrintBytecodeHistogram, false, \ |
duke@435 | 2298 | "Print histogram of the executed bytecodes") \ |
duke@435 | 2299 | \ |
duke@435 | 2300 | develop(bool, PrintBytecodePairHistogram, false, \ |
duke@435 | 2301 | "Print histogram of the executed bytecode pairs") \ |
duke@435 | 2302 | \ |
duke@435 | 2303 | develop(bool, PrintSignatureHandlers, false, \ |
duke@435 | 2304 | "Print code generated for native method signature handlers") \ |
duke@435 | 2305 | \ |
duke@435 | 2306 | develop(bool, VerifyOops, false, \ |
duke@435 | 2307 | "Do plausibility checks for oops") \ |
duke@435 | 2308 | \ |
duke@435 | 2309 | develop(bool, CheckUnhandledOops, false, \ |
duke@435 | 2310 | "Check for unhandled oops in VM code") \ |
duke@435 | 2311 | \ |
duke@435 | 2312 | develop(bool, VerifyJNIFields, trueInDebug, \ |
duke@435 | 2313 | "Verify jfieldIDs for instance fields") \ |
duke@435 | 2314 | \ |
duke@435 | 2315 | notproduct(bool, VerifyJNIEnvThread, false, \ |
duke@435 | 2316 | "Verify JNIEnv.thread == Thread::current() when entering VM " \ |
duke@435 | 2317 | "from JNI") \ |
duke@435 | 2318 | \ |
duke@435 | 2319 | develop(bool, VerifyFPU, false, \ |
duke@435 | 2320 | "Verify FPU state (check for NaN's, etc.)") \ |
duke@435 | 2321 | \ |
duke@435 | 2322 | develop(bool, VerifyThread, false, \ |
duke@435 | 2323 | "Watch the thread register for corruption (SPARC only)") \ |
duke@435 | 2324 | \ |
duke@435 | 2325 | develop(bool, VerifyActivationFrameSize, false, \ |
duke@435 | 2326 | "Verify that activation frame didn't become smaller than its " \ |
duke@435 | 2327 | "minimal size") \ |
duke@435 | 2328 | \ |
duke@435 | 2329 | develop(bool, TraceFrequencyInlining, false, \ |
duke@435 | 2330 | "Trace frequency based inlining") \ |
duke@435 | 2331 | \ |
duke@435 | 2332 | notproduct(bool, TraceTypeProfile, false, \ |
duke@435 | 2333 | "Trace type profile") \ |
duke@435 | 2334 | \ |
duke@435 | 2335 | develop_pd(bool, InlineIntrinsics, \ |
duke@435 | 2336 | "Inline intrinsics that can be statically resolved") \ |
duke@435 | 2337 | \ |
duke@435 | 2338 | product_pd(bool, ProfileInterpreter, \ |
duke@435 | 2339 | "Profile at the bytecode level during interpretation") \ |
duke@435 | 2340 | \ |
duke@435 | 2341 | develop_pd(bool, ProfileTraps, \ |
duke@435 | 2342 | "Profile deoptimization traps at the bytecode level") \ |
duke@435 | 2343 | \ |
duke@435 | 2344 | product(intx, ProfileMaturityPercentage, 20, \ |
duke@435 | 2345 | "number of method invocations/branches (expressed as % of " \ |
duke@435 | 2346 | "CompileThreshold) before using the method's profile") \ |
duke@435 | 2347 | \ |
duke@435 | 2348 | develop(bool, PrintMethodData, false, \ |
duke@435 | 2349 | "Print the results of +ProfileInterpreter at end of run") \ |
duke@435 | 2350 | \ |
duke@435 | 2351 | develop(bool, VerifyDataPointer, trueInDebug, \ |
duke@435 | 2352 | "Verify the method data pointer during interpreter profiling") \ |
duke@435 | 2353 | \ |
duke@435 | 2354 | develop(bool, VerifyCompiledCode, false, \ |
duke@435 | 2355 | "Include miscellaneous runtime verifications in nmethod code; " \ |
duke@435 | 2356 | "off by default because it disturbs nmethod size heuristics.") \ |
duke@435 | 2357 | \ |
duke@435 | 2358 | \ |
duke@435 | 2359 | /* compilation */ \ |
duke@435 | 2360 | product(bool, UseCompiler, true, \ |
duke@435 | 2361 | "use compilation") \ |
duke@435 | 2362 | \ |
duke@435 | 2363 | develop(bool, TraceCompilationPolicy, false, \ |
duke@435 | 2364 | "Trace compilation policy") \ |
duke@435 | 2365 | \ |
duke@435 | 2366 | develop(bool, TimeCompilationPolicy, false, \ |
duke@435 | 2367 | "Time the compilation policy") \ |
duke@435 | 2368 | \ |
duke@435 | 2369 | product(bool, UseCounterDecay, true, \ |
duke@435 | 2370 | "adjust recompilation counters") \ |
duke@435 | 2371 | \ |
duke@435 | 2372 | develop(intx, CounterHalfLifeTime, 30, \ |
duke@435 | 2373 | "half-life time of invocation counters (in secs)") \ |
duke@435 | 2374 | \ |
duke@435 | 2375 | develop(intx, CounterDecayMinIntervalLength, 500, \ |
duke@435 | 2376 | "Min. ms. between invocation of CounterDecay") \ |
duke@435 | 2377 | \ |
duke@435 | 2378 | product(bool, AlwaysCompileLoopMethods, false, \ |
duke@435 | 2379 | "when using recompilation, never interpret methods " \ |
duke@435 | 2380 | "containing loops") \ |
duke@435 | 2381 | \ |
duke@435 | 2382 | product(bool, DontCompileHugeMethods, true, \ |
duke@435 | 2383 | "don't compile methods > HugeMethodLimit") \ |
duke@435 | 2384 | \ |
duke@435 | 2385 | /* Bytecode escape analysis estimation. */ \ |
duke@435 | 2386 | product(bool, EstimateArgEscape, true, \ |
duke@435 | 2387 | "Analyze bytecodes to estimate escape state of arguments") \ |
duke@435 | 2388 | \ |
duke@435 | 2389 | product(intx, BCEATraceLevel, 0, \ |
duke@435 | 2390 | "How much tracing to do of bytecode escape analysis estimates") \ |
duke@435 | 2391 | \ |
duke@435 | 2392 | product(intx, MaxBCEAEstimateLevel, 5, \ |
duke@435 | 2393 | "Maximum number of nested calls that are analyzed by BC EA.") \ |
duke@435 | 2394 | \ |
duke@435 | 2395 | product(intx, MaxBCEAEstimateSize, 150, \ |
duke@435 | 2396 | "Maximum bytecode size of a method to be analyzed by BC EA.") \ |
duke@435 | 2397 | \ |
duke@435 | 2398 | product(intx, AllocatePrefetchStyle, 1, \ |
duke@435 | 2399 | "0 = no prefetch, " \ |
duke@435 | 2400 | "1 = prefetch instructions for each allocation, " \ |
duke@435 | 2401 | "2 = use TLAB watermark to gate allocation prefetch") \ |
duke@435 | 2402 | \ |
duke@435 | 2403 | product(intx, AllocatePrefetchDistance, -1, \ |
duke@435 | 2404 | "Distance to prefetch ahead of allocation pointer") \ |
duke@435 | 2405 | \ |
duke@435 | 2406 | product(intx, AllocatePrefetchLines, 1, \ |
duke@435 | 2407 | "Number of lines to prefetch ahead of allocation pointer") \ |
duke@435 | 2408 | \ |
duke@435 | 2409 | product(intx, AllocatePrefetchStepSize, 16, \ |
duke@435 | 2410 | "Step size in bytes of sequential prefetch instructions") \ |
duke@435 | 2411 | \ |
duke@435 | 2412 | product(intx, AllocatePrefetchInstr, 0, \ |
duke@435 | 2413 | "Prefetch instruction to prefetch ahead of allocation pointer") \ |
duke@435 | 2414 | \ |
duke@435 | 2415 | product(intx, ReadPrefetchInstr, 0, \ |
duke@435 | 2416 | "Prefetch instruction to prefetch ahead") \ |
duke@435 | 2417 | \ |
duke@435 | 2418 | /* deoptimization */ \ |
duke@435 | 2419 | develop(bool, TraceDeoptimization, false, \ |
duke@435 | 2420 | "Trace deoptimization") \ |
duke@435 | 2421 | \ |
duke@435 | 2422 | develop(bool, DebugDeoptimization, false, \ |
duke@435 | 2423 | "Tracing various information while debugging deoptimization") \ |
duke@435 | 2424 | \ |
duke@435 | 2425 | product(intx, SelfDestructTimer, 0, \ |
duke@435 | 2426 | "Will cause VM to terminate after a given time (in minutes) " \ |
duke@435 | 2427 | "(0 means off)") \ |
duke@435 | 2428 | \ |
duke@435 | 2429 | product(intx, MaxJavaStackTraceDepth, 1024, \ |
duke@435 | 2430 | "Max. no. of lines in the stack trace for Java exceptions " \ |
duke@435 | 2431 | "(0 means all)") \ |
duke@435 | 2432 | \ |
duke@435 | 2433 | develop(intx, GuaranteedSafepointInterval, 1000, \ |
duke@435 | 2434 | "Guarantee a safepoint (at least) every so many milliseconds " \ |
duke@435 | 2435 | "(0 means none)") \ |
duke@435 | 2436 | \ |
duke@435 | 2437 | product(intx, SafepointTimeoutDelay, 10000, \ |
duke@435 | 2438 | "Delay in milliseconds for option SafepointTimeout") \ |
duke@435 | 2439 | \ |
duke@435 | 2440 | product(intx, NmethodSweepFraction, 4, \ |
duke@435 | 2441 | "Number of invocations of sweeper to cover all nmethods") \ |
duke@435 | 2442 | \ |
duke@435 | 2443 | notproduct(intx, MemProfilingInterval, 500, \ |
duke@435 | 2444 | "Time between each invocation of the MemProfiler") \ |
duke@435 | 2445 | \ |
duke@435 | 2446 | develop(intx, MallocCatchPtr, -1, \ |
duke@435 | 2447 | "Hit breakpoint when mallocing/freeing this pointer") \ |
duke@435 | 2448 | \ |
duke@435 | 2449 | notproduct(intx, AssertRepeat, 1, \ |
duke@435 | 2450 | "number of times to evaluate expression in assert " \ |
duke@435 | 2451 | "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ |
duke@435 | 2452 | \ |
duke@435 | 2453 | notproduct(ccstrlist, SuppressErrorAt, "", \ |
duke@435 | 2454 | "List of assertions (file:line) to muzzle") \ |
duke@435 | 2455 | \ |
duke@435 | 2456 | notproduct(uintx, HandleAllocationLimit, 1024, \ |
duke@435 | 2457 | "Threshold for HandleMark allocation when +TraceHandleAllocation "\ |
duke@435 | 2458 | "is used") \ |
duke@435 | 2459 | \ |
duke@435 | 2460 | develop(uintx, TotalHandleAllocationLimit, 1024, \ |
duke@435 | 2461 | "Threshold for total handle allocation when " \ |
duke@435 | 2462 | "+TraceHandleAllocation is used") \ |
duke@435 | 2463 | \ |
duke@435 | 2464 | develop(intx, StackPrintLimit, 100, \ |
duke@435 | 2465 | "number of stack frames to print in VM-level stack dump") \ |
duke@435 | 2466 | \ |
duke@435 | 2467 | notproduct(intx, MaxElementPrintSize, 256, \ |
duke@435 | 2468 | "maximum number of elements to print") \ |
duke@435 | 2469 | \ |
duke@435 | 2470 | notproduct(intx, MaxSubklassPrintSize, 4, \ |
duke@435 | 2471 | "maximum number of subklasses to print when printing klass") \ |
duke@435 | 2472 | \ |
duke@435 | 2473 | develop(intx, MaxInlineLevel, 9, \ |
duke@435 | 2474 | "maximum number of nested calls that are inlined") \ |
duke@435 | 2475 | \ |
duke@435 | 2476 | develop(intx, MaxRecursiveInlineLevel, 1, \ |
duke@435 | 2477 | "maximum number of nested recursive calls that are inlined") \ |
duke@435 | 2478 | \ |
duke@435 | 2479 | develop(intx, InlineSmallCode, 1000, \ |
duke@435 | 2480 | "Only inline already compiled methods if their code size is " \ |
duke@435 | 2481 | "less than this") \ |
duke@435 | 2482 | \ |
duke@435 | 2483 | product(intx, MaxInlineSize, 35, \ |
duke@435 | 2484 | "maximum bytecode size of a method to be inlined") \ |
duke@435 | 2485 | \ |
duke@435 | 2486 | product_pd(intx, FreqInlineSize, \ |
duke@435 | 2487 | "maximum bytecode size of a frequent method to be inlined") \ |
duke@435 | 2488 | \ |
duke@435 | 2489 | develop(intx, MaxTrivialSize, 6, \ |
duke@435 | 2490 | "maximum bytecode size of a trivial method to be inlined") \ |
duke@435 | 2491 | \ |
duke@435 | 2492 | develop(intx, MinInliningThreshold, 250, \ |
duke@435 | 2493 | "min. invocation count a method needs to have to be inlined") \ |
duke@435 | 2494 | \ |
duke@435 | 2495 | develop(intx, AlignEntryCode, 4, \ |
duke@435 | 2496 | "aligns entry code to specified value (in bytes)") \ |
duke@435 | 2497 | \ |
duke@435 | 2498 | develop(intx, MethodHistogramCutoff, 100, \ |
duke@435 | 2499 | "cutoff value for method invoc. histogram (+CountCalls)") \ |
duke@435 | 2500 | \ |
duke@435 | 2501 | develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ |
duke@435 | 2502 | "# of interpreted methods to show in profile") \ |
duke@435 | 2503 | \ |
duke@435 | 2504 | develop(intx, ProfilerNumberOfCompiledMethods, 25, \ |
duke@435 | 2505 | "# of compiled methods to show in profile") \ |
duke@435 | 2506 | \ |
duke@435 | 2507 | develop(intx, ProfilerNumberOfStubMethods, 25, \ |
duke@435 | 2508 | "# of stub methods to show in profile") \ |
duke@435 | 2509 | \ |
duke@435 | 2510 | develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ |
duke@435 | 2511 | "# of runtime stub nodes to show in profile") \ |
duke@435 | 2512 | \ |
duke@435 | 2513 | product(intx, ProfileIntervalsTicks, 100, \ |
duke@435 | 2514 | "# of ticks between printing of interval profile " \ |
duke@435 | 2515 | "(+ProfileIntervals)") \ |
duke@435 | 2516 | \ |
duke@435 | 2517 | notproduct(intx, ScavengeALotInterval, 1, \ |
duke@435 | 2518 | "Interval between which scavenge will occur with +ScavengeALot") \ |
duke@435 | 2519 | \ |
duke@435 | 2520 | notproduct(intx, FullGCALotInterval, 1, \ |
duke@435 | 2521 | "Interval between which full gc will occur with +FullGCALot") \ |
duke@435 | 2522 | \ |
duke@435 | 2523 | notproduct(intx, FullGCALotStart, 0, \ |
duke@435 | 2524 | "For which invocation to start FullGCAlot") \ |
duke@435 | 2525 | \ |
duke@435 | 2526 | notproduct(intx, FullGCALotDummies, 32*K, \ |
duke@435 | 2527 | "Dummy object allocated with +FullGCALot, forcing all objects " \ |
duke@435 | 2528 | "to move") \ |
duke@435 | 2529 | \ |
duke@435 | 2530 | develop(intx, DontYieldALotInterval, 10, \ |
duke@435 | 2531 | "Interval between which yields will be dropped (milliseconds)") \ |
duke@435 | 2532 | \ |
duke@435 | 2533 | develop(intx, MinSleepInterval, 1, \ |
duke@435 | 2534 | "Minimum sleep() interval (milliseconds) when " \ |
duke@435 | 2535 | "ConvertSleepToYield is off (used for SOLARIS)") \ |
duke@435 | 2536 | \ |
duke@435 | 2537 | product(intx, EventLogLength, 2000, \ |
duke@435 | 2538 | "maximum nof events in event log") \ |
duke@435 | 2539 | \ |
duke@435 | 2540 | develop(intx, ProfilerPCTickThreshold, 15, \ |
duke@435 | 2541 | "Number of ticks in a PC buckets to be a hotspot") \ |
duke@435 | 2542 | \ |
duke@435 | 2543 | notproduct(intx, DeoptimizeALotInterval, 5, \ |
duke@435 | 2544 | "Number of exits until DeoptimizeALot kicks in") \ |
duke@435 | 2545 | \ |
duke@435 | 2546 | notproduct(intx, ZombieALotInterval, 5, \ |
duke@435 | 2547 | "Number of exits until ZombieALot kicks in") \ |
duke@435 | 2548 | \ |
duke@435 | 2549 | develop(bool, StressNonEntrant, false, \ |
duke@435 | 2550 | "Mark nmethods non-entrant at registration") \ |
duke@435 | 2551 | \ |
duke@435 | 2552 | diagnostic(intx, MallocVerifyInterval, 0, \ |
duke@435 | 2553 | "if non-zero, verify C heap after every N calls to " \ |
duke@435 | 2554 | "malloc/realloc/free") \ |
duke@435 | 2555 | \ |
duke@435 | 2556 | diagnostic(intx, MallocVerifyStart, 0, \ |
duke@435 | 2557 | "if non-zero, start verifying C heap after Nth call to " \ |
duke@435 | 2558 | "malloc/realloc/free") \ |
duke@435 | 2559 | \ |
duke@435 | 2560 | product(intx, TypeProfileWidth, 2, \ |
duke@435 | 2561 | "number of receiver types to record in call/cast profile") \ |
duke@435 | 2562 | \ |
duke@435 | 2563 | develop(intx, BciProfileWidth, 2, \ |
duke@435 | 2564 | "number of return bci's to record in ret profile") \ |
duke@435 | 2565 | \ |
duke@435 | 2566 | product(intx, PerMethodRecompilationCutoff, 400, \ |
duke@435 | 2567 | "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ |
duke@435 | 2568 | \ |
duke@435 | 2569 | product(intx, PerBytecodeRecompilationCutoff, 100, \ |
duke@435 | 2570 | "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
duke@435 | 2571 | \ |
duke@435 | 2572 | product(intx, PerMethodTrapLimit, 100, \ |
duke@435 | 2573 | "Limit on traps (of one kind) in a method (includes inlines)") \ |
duke@435 | 2574 | \ |
duke@435 | 2575 | product(intx, PerBytecodeTrapLimit, 4, \ |
duke@435 | 2576 | "Limit on traps (of one kind) at a particular BCI") \ |
duke@435 | 2577 | \ |
duke@435 | 2578 | develop(intx, FreqCountInvocations, 1, \ |
duke@435 | 2579 | "Scaling factor for branch frequencies (deprecated)") \ |
duke@435 | 2580 | \ |
duke@435 | 2581 | develop(intx, InlineFrequencyRatio, 20, \ |
duke@435 | 2582 | "Ratio of call site execution to caller method invocation") \ |
duke@435 | 2583 | \ |
duke@435 | 2584 | develop_pd(intx, InlineFrequencyCount, \ |
duke@435 | 2585 | "Count of call site execution necessary to trigger frequent " \ |
duke@435 | 2586 | "inlining") \ |
duke@435 | 2587 | \ |
duke@435 | 2588 | develop(intx, InlineThrowCount, 50, \ |
duke@435 | 2589 | "Force inlining of interpreted methods that throw this often") \ |
duke@435 | 2590 | \ |
duke@435 | 2591 | develop(intx, InlineThrowMaxSize, 200, \ |
duke@435 | 2592 | "Force inlining of throwing methods smaller than this") \ |
duke@435 | 2593 | \ |
duke@435 | 2594 | product(intx, AliasLevel, 3, \ |
duke@435 | 2595 | "0 for no aliasing, 1 for oop/field/static/array split, " \ |
duke@435 | 2596 | "2 for class split, 3 for unique instances") \ |
duke@435 | 2597 | \ |
duke@435 | 2598 | develop(bool, VerifyAliases, false, \ |
duke@435 | 2599 | "perform extra checks on the results of alias analysis") \ |
duke@435 | 2600 | \ |
duke@435 | 2601 | develop(intx, ProfilerNodeSize, 1024, \ |
duke@435 | 2602 | "Size in K to allocate for the Profile Nodes of each thread") \ |
duke@435 | 2603 | \ |
duke@435 | 2604 | develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \ |
duke@435 | 2605 | "Number of times to spin wait on a v8 atomic operation lock") \ |
duke@435 | 2606 | \ |
duke@435 | 2607 | product(intx, ReadSpinIterations, 100, \ |
duke@435 | 2608 | "Number of read attempts before a yield (spin inner loop)") \ |
duke@435 | 2609 | \ |
duke@435 | 2610 | product_pd(intx, PreInflateSpin, \ |
duke@435 | 2611 | "Number of times to spin wait before inflation") \ |
duke@435 | 2612 | \ |
duke@435 | 2613 | product(intx, PreBlockSpin, 10, \ |
duke@435 | 2614 | "Number of times to spin in an inflated lock before going to " \ |
duke@435 | 2615 | "an OS lock") \ |
duke@435 | 2616 | \ |
duke@435 | 2617 | /* gc parameters */ \ |
duke@435 | 2618 | product(uintx, MaxHeapSize, ScaleForWordSize(64*M), \ |
duke@435 | 2619 | "Default maximum size for object heap (in bytes)") \ |
duke@435 | 2620 | \ |
duke@435 | 2621 | product_pd(uintx, NewSize, \ |
duke@435 | 2622 | "Default size of new generation (in bytes)") \ |
duke@435 | 2623 | \ |
duke@435 | 2624 | product(uintx, MaxNewSize, max_uintx, \ |
duke@435 | 2625 | "Maximum size of new generation (in bytes)") \ |
duke@435 | 2626 | \ |
duke@435 | 2627 | product(uintx, PretenureSizeThreshold, 0, \ |
duke@435 | 2628 | "Max size in bytes of objects allocated in DefNew generation") \ |
duke@435 | 2629 | \ |
duke@435 | 2630 | product_pd(uintx, TLABSize, \ |
duke@435 | 2631 | "Default (or starting) size of TLAB (in bytes)") \ |
duke@435 | 2632 | \ |
duke@435 | 2633 | product(uintx, MinTLABSize, 2*K, \ |
duke@435 | 2634 | "Minimum allowed TLAB size (in bytes)") \ |
duke@435 | 2635 | \ |
duke@435 | 2636 | product(uintx, TLABAllocationWeight, 35, \ |
duke@435 | 2637 | "Allocation averaging weight") \ |
duke@435 | 2638 | \ |
duke@435 | 2639 | product(uintx, TLABWasteTargetPercent, 1, \ |
duke@435 | 2640 | "Percentage of Eden that can be wasted") \ |
duke@435 | 2641 | \ |
duke@435 | 2642 | product(uintx, TLABRefillWasteFraction, 64, \ |
duke@435 | 2643 | "Max TLAB waste at a refill (internal fragmentation)") \ |
duke@435 | 2644 | \ |
duke@435 | 2645 | product(uintx, TLABWasteIncrement, 4, \ |
duke@435 | 2646 | "Increment allowed waste at slow allocation") \ |
duke@435 | 2647 | \ |
duke@435 | 2648 | product_pd(intx, SurvivorRatio, \ |
duke@435 | 2649 | "Ratio of eden/survivor space size") \ |
duke@435 | 2650 | \ |
duke@435 | 2651 | product_pd(intx, NewRatio, \ |
duke@435 | 2652 | "Ratio of new/old generation sizes") \ |
duke@435 | 2653 | \ |
duke@435 | 2654 | product(uintx, MaxLiveObjectEvacuationRatio, 100, \ |
duke@435 | 2655 | "Max percent of eden objects that will be live at scavenge") \ |
duke@435 | 2656 | \ |
duke@435 | 2657 | product_pd(uintx, NewSizeThreadIncrease, \ |
duke@435 | 2658 | "Additional size added to desired new generation size per " \ |
duke@435 | 2659 | "non-daemon thread (in bytes)") \ |
duke@435 | 2660 | \ |
duke@435 | 2661 | product(uintx, OldSize, ScaleForWordSize(4096*K), \ |
duke@435 | 2662 | "Default size of tenured generation (in bytes)") \ |
duke@435 | 2663 | \ |
duke@435 | 2664 | product_pd(uintx, PermSize, \ |
duke@435 | 2665 | "Default size of permanent generation (in bytes)") \ |
duke@435 | 2666 | \ |
duke@435 | 2667 | product_pd(uintx, MaxPermSize, \ |
duke@435 | 2668 | "Maximum size of permanent generation (in bytes)") \ |
duke@435 | 2669 | \ |
duke@435 | 2670 | product(uintx, MinHeapFreeRatio, 40, \ |
duke@435 | 2671 | "Min percentage of heap free after GC to avoid expansion") \ |
duke@435 | 2672 | \ |
duke@435 | 2673 | product(uintx, MaxHeapFreeRatio, 70, \ |
duke@435 | 2674 | "Max percentage of heap free after GC to avoid shrinking") \ |
duke@435 | 2675 | \ |
duke@435 | 2676 | product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ |
duke@435 | 2677 | "Number of milliseconds per MB of free space in the heap") \ |
duke@435 | 2678 | \ |
duke@435 | 2679 | product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ |
duke@435 | 2680 | "Min change in heap space due to GC (in bytes)") \ |
duke@435 | 2681 | \ |
duke@435 | 2682 | product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \ |
duke@435 | 2683 | "Min expansion of permanent heap (in bytes)") \ |
duke@435 | 2684 | \ |
duke@435 | 2685 | product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \ |
duke@435 | 2686 | "Max expansion of permanent heap without full GC (in bytes)") \ |
duke@435 | 2687 | \ |
duke@435 | 2688 | product(intx, QueuedAllocationWarningCount, 0, \ |
duke@435 | 2689 | "Number of times an allocation that queues behind a GC " \ |
duke@435 | 2690 | "will retry before printing a warning") \ |
duke@435 | 2691 | \ |
duke@435 | 2692 | diagnostic(uintx, VerifyGCStartAt, 0, \ |
duke@435 | 2693 | "GC invoke count where +VerifyBefore/AfterGC kicks in") \ |
duke@435 | 2694 | \ |
duke@435 | 2695 | diagnostic(intx, VerifyGCLevel, 0, \ |
duke@435 | 2696 | "Generation level at which to start +VerifyBefore/AfterGC") \ |
duke@435 | 2697 | \ |
duke@435 | 2698 | develop(uintx, ExitAfterGCNum, 0, \ |
duke@435 | 2699 | "If non-zero, exit after this GC.") \ |
duke@435 | 2700 | \ |
duke@435 | 2701 | product(intx, MaxTenuringThreshold, 15, \ |
duke@435 | 2702 | "Maximum value for tenuring threshold") \ |
duke@435 | 2703 | \ |
duke@435 | 2704 | product(intx, InitialTenuringThreshold, 7, \ |
duke@435 | 2705 | "Initial value for tenuring threshold") \ |
duke@435 | 2706 | \ |
duke@435 | 2707 | product(intx, TargetSurvivorRatio, 50, \ |
duke@435 | 2708 | "Desired percentage of survivor space used after scavenge") \ |
duke@435 | 2709 | \ |
duke@435 | 2710 | product(intx, MarkSweepDeadRatio, 5, \ |
duke@435 | 2711 | "Percentage (0-100) of the old gen allowed as dead wood." \ |
duke@435 | 2712 | "Serial mark sweep treats this as both the min and max value." \ |
duke@435 | 2713 | "CMS uses this value only if it falls back to mark sweep." \ |
duke@435 | 2714 | "Par compact uses a variable scale based on the density of the" \ |
duke@435 | 2715 | "generation and treats this as the max value when the heap is" \ |
duke@435 | 2716 | "either completely full or completely empty. Par compact also" \ |
duke@435 | 2717 | "has a smaller default value; see arguments.cpp.") \ |
duke@435 | 2718 | \ |
duke@435 | 2719 | product(intx, PermMarkSweepDeadRatio, 20, \ |
duke@435 | 2720 | "Percentage (0-100) of the perm gen allowed as dead wood." \ |
duke@435 | 2721 | "See MarkSweepDeadRatio for collector-specific comments.") \ |
duke@435 | 2722 | \ |
duke@435 | 2723 | product(intx, MarkSweepAlwaysCompactCount, 4, \ |
duke@435 | 2724 | "How often should we fully compact the heap (ignoring the dead " \ |
duke@435 | 2725 | "space parameters)") \ |
duke@435 | 2726 | \ |
duke@435 | 2727 | product(intx, PrintCMSStatistics, 0, \ |
duke@435 | 2728 | "Statistics for CMS") \ |
duke@435 | 2729 | \ |
duke@435 | 2730 | product(bool, PrintCMSInitiationStatistics, false, \ |
duke@435 | 2731 | "Statistics for initiating a CMS collection") \ |
duke@435 | 2732 | \ |
duke@435 | 2733 | product(intx, PrintFLSStatistics, 0, \ |
duke@435 | 2734 | "Statistics for CMS' FreeListSpace") \ |
duke@435 | 2735 | \ |
duke@435 | 2736 | product(intx, PrintFLSCensus, 0, \ |
duke@435 | 2737 | "Census for CMS' FreeListSpace") \ |
duke@435 | 2738 | \ |
duke@435 | 2739 | develop(uintx, GCExpandToAllocateDelayMillis, 0, \ |
duke@435 | 2740 | "Delay in ms between expansion and allocation") \ |
duke@435 | 2741 | \ |
duke@435 | 2742 | product(intx, DeferThrSuspendLoopCount, 4000, \ |
duke@435 | 2743 | "(Unstable) Number of times to iterate in safepoint loop " \ |
duke@435 | 2744 | " before blocking VM threads ") \ |
duke@435 | 2745 | \ |
duke@435 | 2746 | product(intx, DeferPollingPageLoopCount, -1, \ |
duke@435 | 2747 | "(Unsafe,Unstable) Number of iterations in safepoint loop " \ |
duke@435 | 2748 | "before changing safepoint polling page to RO ") \ |
duke@435 | 2749 | \ |
duke@435 | 2750 | product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ |
duke@435 | 2751 | \ |
duke@435 | 2752 | product(bool, UseDepthFirstScavengeOrder, true, \ |
duke@435 | 2753 | "true: the scavenge order will be depth-first, " \ |
duke@435 | 2754 | "false: the scavenge order will be breadth-first") \ |
duke@435 | 2755 | \ |
duke@435 | 2756 | product(bool, PSChunkLargeArrays, true, \ |
duke@435 | 2757 | "true: process large arrays in chunks") \ |
duke@435 | 2758 | \ |
duke@435 | 2759 | product(uintx, GCDrainStackTargetSize, 64, \ |
duke@435 | 2760 | "how many entries we'll try to leave on the stack during " \ |
duke@435 | 2761 | "parallel GC") \ |
duke@435 | 2762 | \ |
duke@435 | 2763 | /* stack parameters */ \ |
duke@435 | 2764 | product_pd(intx, StackYellowPages, \ |
duke@435 | 2765 | "Number of yellow zone (recoverable overflows) pages") \ |
duke@435 | 2766 | \ |
duke@435 | 2767 | product_pd(intx, StackRedPages, \ |
duke@435 | 2768 | "Number of red zone (unrecoverable overflows) pages") \ |
duke@435 | 2769 | \ |
duke@435 | 2770 | product_pd(intx, StackShadowPages, \ |
duke@435 | 2771 | "Number of shadow zone (for overflow checking) pages" \ |
duke@435 | 2772 | " this should exceed the depth of the VM and native call stack") \ |
duke@435 | 2773 | \ |
duke@435 | 2774 | product_pd(intx, ThreadStackSize, \ |
duke@435 | 2775 | "Thread Stack Size (in Kbytes)") \ |
duke@435 | 2776 | \ |
duke@435 | 2777 | product_pd(intx, VMThreadStackSize, \ |
duke@435 | 2778 | "Non-Java Thread Stack Size (in Kbytes)") \ |
duke@435 | 2779 | \ |
duke@435 | 2780 | product_pd(intx, CompilerThreadStackSize, \ |
duke@435 | 2781 | "Compiler Thread Stack Size (in Kbytes)") \ |
duke@435 | 2782 | \ |
duke@435 | 2783 | develop_pd(uintx, JVMInvokeMethodSlack, \ |
duke@435 | 2784 | "Stack space (bytes) required for JVM_InvokeMethod to complete") \ |
duke@435 | 2785 | \ |
duke@435 | 2786 | product(uintx, ThreadSafetyMargin, 50*M, \ |
duke@435 | 2787 | "Thread safety margin is used on fixed-stack LinuxThreads (on " \ |
duke@435 | 2788 | "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ |
duke@435 | 2789 | "disable this feature") \ |
duke@435 | 2790 | \ |
duke@435 | 2791 | /* code cache parameters */ \ |
duke@435 | 2792 | develop(uintx, CodeCacheSegmentSize, 64, \ |
duke@435 | 2793 | "Code cache segment size (in bytes) - smallest unit of " \ |
duke@435 | 2794 | "allocation") \ |
duke@435 | 2795 | \ |
duke@435 | 2796 | develop_pd(intx, CodeEntryAlignment, \ |
duke@435 | 2797 | "Code entry alignment for generated code (in bytes)") \ |
duke@435 | 2798 | \ |
duke@435 | 2799 | product_pd(uintx, InitialCodeCacheSize, \ |
duke@435 | 2800 | "Initial code cache size (in bytes)") \ |
duke@435 | 2801 | \ |
duke@435 | 2802 | product_pd(uintx, ReservedCodeCacheSize, \ |
duke@435 | 2803 | "Reserved code cache size (in bytes) - maximum code cache size") \ |
duke@435 | 2804 | \ |
duke@435 | 2805 | product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ |
duke@435 | 2806 | "When less than X space left, we stop compiling.") \ |
duke@435 | 2807 | \ |
duke@435 | 2808 | product_pd(uintx, CodeCacheExpansionSize, \ |
duke@435 | 2809 | "Code cache expansion size (in bytes)") \ |
duke@435 | 2810 | \ |
duke@435 | 2811 | develop_pd(uintx, CodeCacheMinBlockLength, \ |
duke@435 | 2812 | "Minimum number of segments in a code cache block.") \ |
duke@435 | 2813 | \ |
duke@435 | 2814 | notproduct(bool, ExitOnFullCodeCache, false, \ |
duke@435 | 2815 | "Exit the VM if we fill the code cache.") \ |
duke@435 | 2816 | \ |
duke@435 | 2817 | /* interpreter debugging */ \ |
duke@435 | 2818 | develop(intx, BinarySwitchThreshold, 5, \ |
duke@435 | 2819 | "Minimal number of lookupswitch entries for rewriting to binary " \ |
duke@435 | 2820 | "switch") \ |
duke@435 | 2821 | \ |
duke@435 | 2822 | develop(intx, StopInterpreterAt, 0, \ |
duke@435 | 2823 | "Stops interpreter execution at specified bytecode number") \ |
duke@435 | 2824 | \ |
duke@435 | 2825 | develop(intx, TraceBytecodesAt, 0, \ |
duke@435 | 2826 | "Traces bytecodes starting with specified bytecode number") \ |
duke@435 | 2827 | \ |
duke@435 | 2828 | /* compiler interface */ \ |
duke@435 | 2829 | develop(intx, CIStart, 0, \ |
duke@435 | 2830 | "the id of the first compilation to permit") \ |
duke@435 | 2831 | \ |
duke@435 | 2832 | develop(intx, CIStop, -1, \ |
duke@435 | 2833 | "the id of the last compilation to permit") \ |
duke@435 | 2834 | \ |
duke@435 | 2835 | develop(intx, CIStartOSR, 0, \ |
duke@435 | 2836 | "the id of the first osr compilation to permit " \ |
duke@435 | 2837 | "(CICountOSR must be on)") \ |
duke@435 | 2838 | \ |
duke@435 | 2839 | develop(intx, CIStopOSR, -1, \ |
duke@435 | 2840 | "the id of the last osr compilation to permit " \ |
duke@435 | 2841 | "(CICountOSR must be on)") \ |
duke@435 | 2842 | \ |
duke@435 | 2843 | develop(intx, CIBreakAtOSR, -1, \ |
duke@435 | 2844 | "id of osr compilation to break at") \ |
duke@435 | 2845 | \ |
duke@435 | 2846 | develop(intx, CIBreakAt, -1, \ |
duke@435 | 2847 | "id of compilation to break at") \ |
duke@435 | 2848 | \ |
duke@435 | 2849 | product(ccstrlist, CompileOnly, "", \ |
duke@435 | 2850 | "List of methods (pkg/class.name) to restrict compilation to") \ |
duke@435 | 2851 | \ |
duke@435 | 2852 | product(ccstr, CompileCommandFile, NULL, \ |
duke@435 | 2853 | "Read compiler commands from this file [.hotspot_compiler]") \ |
duke@435 | 2854 | \ |
duke@435 | 2855 | product(ccstrlist, CompileCommand, "", \ |
duke@435 | 2856 | "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ |
duke@435 | 2857 | \ |
duke@435 | 2858 | product(bool, CICompilerCountPerCPU, false, \ |
duke@435 | 2859 | "1 compiler thread for log(N CPUs)") \ |
duke@435 | 2860 | \ |
duke@435 | 2861 | develop(intx, CIFireOOMAt, -1, \ |
duke@435 | 2862 | "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ |
duke@435 | 2863 | "(non-negative value throws OOM after this many CI accesses " \ |
duke@435 | 2864 | "in each compile)") \ |
duke@435 | 2865 | \ |
duke@435 | 2866 | develop(intx, CIFireOOMAtDelay, -1, \ |
duke@435 | 2867 | "Wait for this many CI accesses to occur in all compiles before " \ |
duke@435 | 2868 | "beginning to throw OutOfMemoryErrors in each compile") \ |
duke@435 | 2869 | \ |
duke@435 | 2870 | /* Priorities */ \ |
duke@435 | 2871 | product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ |
duke@435 | 2872 | \ |
duke@435 | 2873 | product(intx, ThreadPriorityPolicy, 0, \ |
duke@435 | 2874 | "0 : Normal. "\ |
duke@435 | 2875 | " VM chooses priorities that are appropriate for normal "\ |
duke@435 | 2876 | " applications. On Solaris NORM_PRIORITY and above are mapped "\ |
duke@435 | 2877 | " to normal native priority. Java priorities below NORM_PRIORITY"\ |
duke@435 | 2878 | " map to lower native priority values. On Windows applications"\ |
duke@435 | 2879 | " are allowed to use higher native priorities. However, with "\ |
duke@435 | 2880 | " ThreadPriorityPolicy=0, VM will not use the highest possible"\ |
duke@435 | 2881 | " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ |
duke@435 | 2882 | " interfere with system threads. On Linux thread priorities "\ |
duke@435 | 2883 | " are ignored because the OS does not support static priority "\ |
duke@435 | 2884 | " in SCHED_OTHER scheduling class which is the only choice for"\ |
duke@435 | 2885 | " non-root, non-realtime applications. "\ |
duke@435 | 2886 | "1 : Aggressive. "\ |
duke@435 | 2887 | " Java thread priorities map over to the entire range of "\ |
duke@435 | 2888 | " native thread priorities. Higher Java thread priorities map "\ |
duke@435 | 2889 | " to higher native thread priorities. This policy should be "\ |
duke@435 | 2890 | " used with care, as sometimes it can cause performance "\ |
duke@435 | 2891 | " degradation in the application and/or the entire system. On "\ |
duke@435 | 2892 | " Linux this policy requires root privilege.") \ |
duke@435 | 2893 | \ |
duke@435 | 2894 | product(bool, ThreadPriorityVerbose, false, \ |
duke@435 | 2895 | "print priority changes") \ |
duke@435 | 2896 | \ |
duke@435 | 2897 | product(intx, DefaultThreadPriority, -1, \ |
duke@435 | 2898 | "what native priority threads run at if not specified elsewhere (-1 means no change)") \ |
duke@435 | 2899 | \ |
duke@435 | 2900 | product(intx, CompilerThreadPriority, -1, \ |
duke@435 | 2901 | "what priority should compiler threads run at (-1 means no change)") \ |
duke@435 | 2902 | \ |
duke@435 | 2903 | product(intx, VMThreadPriority, -1, \ |
duke@435 | 2904 | "what priority should VM threads run at (-1 means no change)") \ |
duke@435 | 2905 | \ |
duke@435 | 2906 | product(bool, CompilerThreadHintNoPreempt, true, \ |
duke@435 | 2907 | "(Solaris only) Give compiler threads an extra quanta") \ |
duke@435 | 2908 | \ |
duke@435 | 2909 | product(bool, VMThreadHintNoPreempt, false, \ |
duke@435 | 2910 | "(Solaris only) Give VM thread an extra quanta") \ |
duke@435 | 2911 | \ |
duke@435 | 2912 | product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2913 | product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2914 | product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2915 | product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2916 | product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2917 | product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2918 | product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2919 | product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2920 | product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ |
duke@435 | 2921 | product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ |
duke@435 | 2922 | \ |
duke@435 | 2923 | /* compiler debugging */ \ |
duke@435 | 2924 | notproduct(intx, CompileTheWorldStartAt, 1, \ |
duke@435 | 2925 | "First class to consider when using +CompileTheWorld") \ |
duke@435 | 2926 | \ |
duke@435 | 2927 | notproduct(intx, CompileTheWorldStopAt, max_jint, \ |
duke@435 | 2928 | "Last class to consider when using +CompileTheWorld") \ |
duke@435 | 2929 | \ |
duke@435 | 2930 | develop(intx, NewCodeParameter, 0, \ |
duke@435 | 2931 | "Testing Only: Create a dedicated integer parameter before " \ |
duke@435 | 2932 | "putback") \ |
duke@435 | 2933 | \ |
duke@435 | 2934 | /* new oopmap storage allocation */ \ |
duke@435 | 2935 | develop(intx, MinOopMapAllocation, 8, \ |
duke@435 | 2936 | "Minimum number of OopMap entries in an OopMapSet") \ |
duke@435 | 2937 | \ |
duke@435 | 2938 | /* Background Compilation */ \ |
duke@435 | 2939 | develop(intx, LongCompileThreshold, 50, \ |
duke@435 | 2940 | "Used with +TraceLongCompiles") \ |
duke@435 | 2941 | \ |
duke@435 | 2942 | product(intx, StarvationMonitorInterval, 200, \ |
duke@435 | 2943 | "Pause between each check in ms") \ |
duke@435 | 2944 | \ |
duke@435 | 2945 | /* recompilation */ \ |
duke@435 | 2946 | product_pd(intx, CompileThreshold, \ |
duke@435 | 2947 | "number of interpreted method invocations before (re-)compiling") \ |
duke@435 | 2948 | \ |
duke@435 | 2949 | product_pd(intx, BackEdgeThreshold, \ |
duke@435 | 2950 | "Interpreter Back edge threshold at which an OSR compilation is invoked")\ |
duke@435 | 2951 | \ |
duke@435 | 2952 | product(intx, Tier1BytecodeLimit, 10, \ |
duke@435 | 2953 | "Must have at least this many bytecodes before tier1" \ |
duke@435 | 2954 | "invocation counters are used") \ |
duke@435 | 2955 | \ |
duke@435 | 2956 | product_pd(intx, Tier2CompileThreshold, \ |
duke@435 | 2957 | "threshold at which a tier 2 compilation is invoked") \ |
duke@435 | 2958 | \ |
duke@435 | 2959 | product_pd(intx, Tier2BackEdgeThreshold, \ |
duke@435 | 2960 | "Back edge threshold at which a tier 2 compilation is invoked") \ |
duke@435 | 2961 | \ |
duke@435 | 2962 | product_pd(intx, Tier3CompileThreshold, \ |
duke@435 | 2963 | "threshold at which a tier 3 compilation is invoked") \ |
duke@435 | 2964 | \ |
duke@435 | 2965 | product_pd(intx, Tier3BackEdgeThreshold, \ |
duke@435 | 2966 | "Back edge threshold at which a tier 3 compilation is invoked") \ |
duke@435 | 2967 | \ |
duke@435 | 2968 | product_pd(intx, Tier4CompileThreshold, \ |
duke@435 | 2969 | "threshold at which a tier 4 compilation is invoked") \ |
duke@435 | 2970 | \ |
duke@435 | 2971 | product_pd(intx, Tier4BackEdgeThreshold, \ |
duke@435 | 2972 | "Back edge threshold at which a tier 4 compilation is invoked") \ |
duke@435 | 2973 | \ |
duke@435 | 2974 | product_pd(bool, TieredCompilation, \ |
duke@435 | 2975 | "Enable two-tier compilation") \ |
duke@435 | 2976 | \ |
duke@435 | 2977 | product(bool, StressTieredRuntime, false, \ |
duke@435 | 2978 | "Alternate client and server compiler on compile requests") \ |
duke@435 | 2979 | \ |
duke@435 | 2980 | product_pd(intx, OnStackReplacePercentage, \ |
duke@435 | 2981 | "NON_TIERED number of method invocations/branches (expressed as %"\ |
duke@435 | 2982 | "of CompileThreshold) before (re-)compiling OSR code") \ |
duke@435 | 2983 | \ |
duke@435 | 2984 | product(intx, InterpreterProfilePercentage, 33, \ |
duke@435 | 2985 | "NON_TIERED number of method invocations/branches (expressed as %"\ |
duke@435 | 2986 | "of CompileThreshold) before profiling in the interpreter") \ |
duke@435 | 2987 | \ |
duke@435 | 2988 | develop(intx, MaxRecompilationSearchLength, 10, \ |
duke@435 | 2989 | "max. # frames to inspect searching for recompilee") \ |
duke@435 | 2990 | \ |
duke@435 | 2991 | develop(intx, MaxInterpretedSearchLength, 3, \ |
duke@435 | 2992 | "max. # interp. frames to skip when searching for recompilee") \ |
duke@435 | 2993 | \ |
duke@435 | 2994 | develop(intx, DesiredMethodLimit, 8000, \ |
duke@435 | 2995 | "desired max. method size (in bytecodes) after inlining") \ |
duke@435 | 2996 | \ |
duke@435 | 2997 | develop(intx, HugeMethodLimit, 8000, \ |
duke@435 | 2998 | "don't compile methods larger than this if " \ |
duke@435 | 2999 | "+DontCompileHugeMethods") \ |
duke@435 | 3000 | \ |
duke@435 | 3001 | /* New JDK 1.4 reflection implementation */ \ |
duke@435 | 3002 | \ |
duke@435 | 3003 | develop(bool, UseNewReflection, true, \ |
duke@435 | 3004 | "Temporary flag for transition to reflection based on dynamic " \ |
duke@435 | 3005 | "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ |
duke@435 | 3006 | "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ |
duke@435 | 3007 | "changes were needed") \ |
duke@435 | 3008 | \ |
duke@435 | 3009 | develop(bool, VerifyReflectionBytecodes, false, \ |
duke@435 | 3010 | "Force verification of 1.4 reflection bytecodes. Does not work " \ |
duke@435 | 3011 | "in situations like that described in 4486457 or for " \ |
duke@435 | 3012 | "constructors generated for serialization, so can not be enabled "\ |
duke@435 | 3013 | "in product.") \ |
duke@435 | 3014 | \ |
duke@435 | 3015 | product(bool, ReflectionWrapResolutionErrors, true, \ |
duke@435 | 3016 | "Temporary flag for transition to AbstractMethodError wrapped " \ |
duke@435 | 3017 | "in InvocationTargetException. See 6531596") \ |
duke@435 | 3018 | \ |
duke@435 | 3019 | \ |
duke@435 | 3020 | develop(intx, FastSuperclassLimit, 8, \ |
duke@435 | 3021 | "Depth of hardwired instanceof accelerator array") \ |
duke@435 | 3022 | \ |
duke@435 | 3023 | /* Properties for Java libraries */ \ |
duke@435 | 3024 | \ |
duke@435 | 3025 | product(intx, MaxDirectMemorySize, -1, \ |
duke@435 | 3026 | "Maximum total size of NIO direct-buffer allocations") \ |
duke@435 | 3027 | \ |
duke@435 | 3028 | /* temporary developer defined flags */ \ |
duke@435 | 3029 | \ |
duke@435 | 3030 | diagnostic(bool, UseNewCode, false, \ |
duke@435 | 3031 | "Testing Only: Use the new version while testing") \ |
duke@435 | 3032 | \ |
duke@435 | 3033 | diagnostic(bool, UseNewCode2, false, \ |
duke@435 | 3034 | "Testing Only: Use the new version while testing") \ |
duke@435 | 3035 | \ |
duke@435 | 3036 | diagnostic(bool, UseNewCode3, false, \ |
duke@435 | 3037 | "Testing Only: Use the new version while testing") \ |
duke@435 | 3038 | \ |
duke@435 | 3039 | /* flags for performance data collection */ \ |
duke@435 | 3040 | \ |
duke@435 | 3041 | product(bool, UsePerfData, true, \ |
duke@435 | 3042 | "Flag to disable jvmstat instrumentation for performance testing" \ |
duke@435 | 3043 | "and problem isolation purposes.") \ |
duke@435 | 3044 | \ |
duke@435 | 3045 | product(bool, PerfDataSaveToFile, false, \ |
duke@435 | 3046 | "Save PerfData memory to hsperfdata_<pid> file on exit") \ |
duke@435 | 3047 | \ |
duke@435 | 3048 | product(ccstr, PerfDataSaveFile, NULL, \ |
duke@435 | 3049 | "Save PerfData memory to the specified absolute pathname," \ |
duke@435 | 3050 | "%p in the file name if present will be replaced by pid") \ |
duke@435 | 3051 | \ |
duke@435 | 3052 | product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ |
duke@435 | 3053 | "Data sampling interval in milliseconds") \ |
duke@435 | 3054 | \ |
duke@435 | 3055 | develop(bool, PerfTraceDataCreation, false, \ |
duke@435 | 3056 | "Trace creation of Performance Data Entries") \ |
duke@435 | 3057 | \ |
duke@435 | 3058 | develop(bool, PerfTraceMemOps, false, \ |
duke@435 | 3059 | "Trace PerfMemory create/attach/detach calls") \ |
duke@435 | 3060 | \ |
duke@435 | 3061 | product(bool, PerfDisableSharedMem, false, \ |
duke@435 | 3062 | "Store performance data in standard memory") \ |
duke@435 | 3063 | \ |
duke@435 | 3064 | product(intx, PerfDataMemorySize, 32*K, \ |
duke@435 | 3065 | "Size of performance data memory region. Will be rounded " \ |
duke@435 | 3066 | "up to a multiple of the native os page size.") \ |
duke@435 | 3067 | \ |
duke@435 | 3068 | product(intx, PerfMaxStringConstLength, 1024, \ |
duke@435 | 3069 | "Maximum PerfStringConstant string length before truncation") \ |
duke@435 | 3070 | \ |
duke@435 | 3071 | product(bool, PerfAllowAtExitRegistration, false, \ |
duke@435 | 3072 | "Allow registration of atexit() methods") \ |
duke@435 | 3073 | \ |
duke@435 | 3074 | product(bool, PerfBypassFileSystemCheck, false, \ |
duke@435 | 3075 | "Bypass Win32 file system criteria checks (Windows Only)") \ |
duke@435 | 3076 | \ |
duke@435 | 3077 | product(intx, UnguardOnExecutionViolation, 0, \ |
duke@435 | 3078 | "Unguard page and retry on no-execute fault (Win32 only)" \ |
duke@435 | 3079 | "0=off, 1=conservative, 2=aggressive") \ |
duke@435 | 3080 | \ |
duke@435 | 3081 | /* Serviceability Support */ \ |
duke@435 | 3082 | \ |
duke@435 | 3083 | product(bool, ManagementServer, false, \ |
duke@435 | 3084 | "Create JMX Management Server") \ |
duke@435 | 3085 | \ |
duke@435 | 3086 | product(bool, DisableAttachMechanism, false, \ |
duke@435 | 3087 | "Disable mechanism that allows tools to attach to this VM") \ |
duke@435 | 3088 | \ |
duke@435 | 3089 | product(bool, StartAttachListener, false, \ |
duke@435 | 3090 | "Always start Attach Listener at VM startup") \ |
duke@435 | 3091 | \ |
duke@435 | 3092 | manageable(bool, PrintConcurrentLocks, false, \ |
duke@435 | 3093 | "Print java.util.concurrent locks in thread dump") \ |
duke@435 | 3094 | \ |
duke@435 | 3095 | /* Shared spaces */ \ |
duke@435 | 3096 | \ |
duke@435 | 3097 | product(bool, UseSharedSpaces, true, \ |
duke@435 | 3098 | "Use shared spaces in the permanent generation") \ |
duke@435 | 3099 | \ |
duke@435 | 3100 | product(bool, RequireSharedSpaces, false, \ |
duke@435 | 3101 | "Require shared spaces in the permanent generation") \ |
duke@435 | 3102 | \ |
duke@435 | 3103 | product(bool, ForceSharedSpaces, false, \ |
duke@435 | 3104 | "Require shared spaces in the permanent generation") \ |
duke@435 | 3105 | \ |
duke@435 | 3106 | product(bool, DumpSharedSpaces, false, \ |
duke@435 | 3107 | "Special mode: JVM reads a class list, loads classes, builds " \ |
duke@435 | 3108 | "shared spaces, and dumps the shared spaces to a file to be " \ |
duke@435 | 3109 | "used in future JVM runs.") \ |
duke@435 | 3110 | \ |
duke@435 | 3111 | product(bool, PrintSharedSpaces, false, \ |
duke@435 | 3112 | "Print usage of shared spaces") \ |
duke@435 | 3113 | \ |
duke@435 | 3114 | product(uintx, SharedDummyBlockSize, 512*M, \ |
duke@435 | 3115 | "Size of dummy block used to shift heap addresses (in bytes)") \ |
duke@435 | 3116 | \ |
duke@435 | 3117 | product(uintx, SharedReadWriteSize, 12*M, \ |
duke@435 | 3118 | "Size of read-write space in permanent generation (in bytes)") \ |
duke@435 | 3119 | \ |
duke@435 | 3120 | product(uintx, SharedReadOnlySize, 8*M, \ |
duke@435 | 3121 | "Size of read-only space in permanent generation (in bytes)") \ |
duke@435 | 3122 | \ |
duke@435 | 3123 | product(uintx, SharedMiscDataSize, 4*M, \ |
duke@435 | 3124 | "Size of the shared data area adjacent to the heap (in bytes)") \ |
duke@435 | 3125 | \ |
duke@435 | 3126 | product(uintx, SharedMiscCodeSize, 4*M, \ |
duke@435 | 3127 | "Size of the shared code area adjacent to the heap (in bytes)") \ |
duke@435 | 3128 | \ |
duke@435 | 3129 | diagnostic(bool, SharedOptimizeColdStart, true, \ |
duke@435 | 3130 | "At dump time, order shared objects to achieve better " \ |
duke@435 | 3131 | "cold startup time.") \ |
duke@435 | 3132 | \ |
duke@435 | 3133 | develop(intx, SharedOptimizeColdStartPolicy, 2, \ |
duke@435 | 3134 | "Reordering policy for SharedOptimizeColdStart " \ |
duke@435 | 3135 | "0=favor classload-time locality, 1=balanced, " \ |
duke@435 | 3136 | "2=favor runtime locality") \ |
duke@435 | 3137 | \ |
duke@435 | 3138 | diagnostic(bool, SharedSkipVerify, false, \ |
duke@435 | 3139 | "Skip assert() and verify() which page-in unwanted shared " \ |
duke@435 | 3140 | "objects. ") \ |
duke@435 | 3141 | \ |
duke@435 | 3142 | product(bool, TaggedStackInterpreter, false, \ |
duke@435 | 3143 | "Insert tags in interpreter execution stack for oopmap generaion")\ |
duke@435 | 3144 | \ |
duke@435 | 3145 | diagnostic(bool, PauseAtStartup, false, \ |
duke@435 | 3146 | "Causes the VM to pause at startup time and wait for the pause " \ |
duke@435 | 3147 | "file to be removed (default: ./vm.paused.<pid>)") \ |
duke@435 | 3148 | \ |
duke@435 | 3149 | diagnostic(ccstr, PauseAtStartupFile, NULL, \ |
duke@435 | 3150 | "The file to create and for whose removal to await when pausing " \ |
duke@435 | 3151 | "at startup. (default: ./vm.paused.<pid>)") \ |
duke@435 | 3152 | \ |
duke@435 | 3153 | product(bool, ExtendedDTraceProbes, false, \ |
duke@435 | 3154 | "Enable performance-impacting dtrace probes") \ |
duke@435 | 3155 | \ |
duke@435 | 3156 | product(bool, DTraceMethodProbes, false, \ |
duke@435 | 3157 | "Enable dtrace probes for method-entry and method-exit") \ |
duke@435 | 3158 | \ |
duke@435 | 3159 | product(bool, DTraceAllocProbes, false, \ |
duke@435 | 3160 | "Enable dtrace probes for object allocation") \ |
duke@435 | 3161 | \ |
duke@435 | 3162 | product(bool, DTraceMonitorProbes, false, \ |
duke@435 | 3163 | "Enable dtrace probes for monitor events") \ |
duke@435 | 3164 | \ |
duke@435 | 3165 | product(bool, RelaxAccessControlCheck, false, \ |
duke@435 | 3166 | "Relax the access control checks in the verifier") \ |
duke@435 | 3167 | \ |
duke@435 | 3168 | product(bool, UseVMInterruptibleIO, true, \ |
duke@435 | 3169 | "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
duke@435 | 3170 | "EINTR for I/O operations results in OS_INTRPT") |
duke@435 | 3171 | |
duke@435 | 3172 | |
duke@435 | 3173 | /* |
duke@435 | 3174 | * Macros for factoring of globals |
duke@435 | 3175 | */ |
duke@435 | 3176 | |
duke@435 | 3177 | // Interface macros |
duke@435 | 3178 | #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3179 | #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; |
duke@435 | 3180 | #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3181 | #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3182 | #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3183 | #ifdef PRODUCT |
duke@435 | 3184 | #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; |
duke@435 | 3185 | #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; |
duke@435 | 3186 | #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) |
duke@435 | 3187 | #else |
duke@435 | 3188 | #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3189 | #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; |
duke@435 | 3190 | #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
duke@435 | 3191 | #endif |
duke@435 | 3192 | |
duke@435 | 3193 | // Implementation macros |
duke@435 | 3194 | #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3195 | #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; |
duke@435 | 3196 | #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3197 | #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3198 | #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3199 | #ifdef PRODUCT |
duke@435 | 3200 | #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ |
duke@435 | 3201 | #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ |
duke@435 | 3202 | #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) |
duke@435 | 3203 | #else |
duke@435 | 3204 | #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3205 | #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; |
duke@435 | 3206 | #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; |
duke@435 | 3207 | #endif |
duke@435 | 3208 | |
duke@435 | 3209 | RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG) |
duke@435 | 3210 | |
duke@435 | 3211 | RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) |