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src/share/vm/runtime/globals.hpp@833b0f92429a
src/share/vm/runtime/globals.hpp
Wed, 27 Aug 2014 08:19:12 -0400
- author
- zgu
- date
- Wed, 27 Aug 2014 08:19:12 -0400
- changeset 7074
- 833b0f92429a
- parent 7040
- da00a41842a5
- child 7089
- 6e0cb14ce59b
- permissions
- -rw-r--r--
8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill
1 /*
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #ifndef SHARE_VM_RUNTIME_GLOBALS_HPP
26 #define SHARE_VM_RUNTIME_GLOBALS_HPP
28 #include "utilities/debug.hpp"
30 // use this for flags that are true per default in the tiered build
31 // but false in non-tiered builds, and vice versa
32 #ifdef TIERED
33 #define trueInTiered true
34 #define falseInTiered false
35 #else
36 #define trueInTiered false
37 #define falseInTiered true
38 #endif
40 #ifdef TARGET_ARCH_x86
41 # include "globals_x86.hpp"
42 #endif
43 #ifdef TARGET_ARCH_sparc
44 # include "globals_sparc.hpp"
45 #endif
46 #ifdef TARGET_ARCH_zero
47 # include "globals_zero.hpp"
48 #endif
49 #ifdef TARGET_ARCH_arm
50 # include "globals_arm.hpp"
51 #endif
52 #ifdef TARGET_ARCH_ppc
53 # include "globals_ppc.hpp"
54 #endif
55 #ifdef TARGET_OS_FAMILY_linux
56 # include "globals_linux.hpp"
57 #endif
58 #ifdef TARGET_OS_FAMILY_solaris
59 # include "globals_solaris.hpp"
60 #endif
61 #ifdef TARGET_OS_FAMILY_windows
62 # include "globals_windows.hpp"
63 #endif
64 #ifdef TARGET_OS_FAMILY_aix
65 # include "globals_aix.hpp"
66 #endif
67 #ifdef TARGET_OS_FAMILY_bsd
68 # include "globals_bsd.hpp"
69 #endif
70 #ifdef TARGET_OS_ARCH_linux_x86
71 # include "globals_linux_x86.hpp"
72 #endif
73 #ifdef TARGET_OS_ARCH_linux_sparc
74 # include "globals_linux_sparc.hpp"
75 #endif
76 #ifdef TARGET_OS_ARCH_linux_zero
77 # include "globals_linux_zero.hpp"
78 #endif
79 #ifdef TARGET_OS_ARCH_solaris_x86
80 # include "globals_solaris_x86.hpp"
81 #endif
82 #ifdef TARGET_OS_ARCH_solaris_sparc
83 # include "globals_solaris_sparc.hpp"
84 #endif
85 #ifdef TARGET_OS_ARCH_windows_x86
86 # include "globals_windows_x86.hpp"
87 #endif
88 #ifdef TARGET_OS_ARCH_linux_arm
89 # include "globals_linux_arm.hpp"
90 #endif
91 #ifdef TARGET_OS_ARCH_linux_ppc
92 # include "globals_linux_ppc.hpp"
93 #endif
94 #ifdef TARGET_OS_ARCH_aix_ppc
95 # include "globals_aix_ppc.hpp"
96 #endif
97 #ifdef TARGET_OS_ARCH_bsd_x86
98 # include "globals_bsd_x86.hpp"
99 #endif
100 #ifdef TARGET_OS_ARCH_bsd_zero
101 # include "globals_bsd_zero.hpp"
102 #endif
103 #ifdef COMPILER1
104 #ifdef TARGET_ARCH_x86
105 # include "c1_globals_x86.hpp"
106 #endif
107 #ifdef TARGET_ARCH_sparc
108 # include "c1_globals_sparc.hpp"
109 #endif
110 #ifdef TARGET_ARCH_arm
111 # include "c1_globals_arm.hpp"
112 #endif
113 #ifdef TARGET_ARCH_ppc
114 # include "c1_globals_ppc.hpp"
115 #endif
116 #ifdef TARGET_OS_FAMILY_linux
117 # include "c1_globals_linux.hpp"
118 #endif
119 #ifdef TARGET_OS_FAMILY_solaris
120 # include "c1_globals_solaris.hpp"
121 #endif
122 #ifdef TARGET_OS_FAMILY_windows
123 # include "c1_globals_windows.hpp"
124 #endif
125 #ifdef TARGET_OS_FAMILY_aix
126 # include "c1_globals_aix.hpp"
127 #endif
128 #ifdef TARGET_OS_FAMILY_bsd
129 # include "c1_globals_bsd.hpp"
130 #endif
131 #endif
132 #ifdef COMPILER2
133 #ifdef TARGET_ARCH_x86
134 # include "c2_globals_x86.hpp"
135 #endif
136 #ifdef TARGET_ARCH_sparc
137 # include "c2_globals_sparc.hpp"
138 #endif
139 #ifdef TARGET_ARCH_arm
140 # include "c2_globals_arm.hpp"
141 #endif
142 #ifdef TARGET_ARCH_ppc
143 # include "c2_globals_ppc.hpp"
144 #endif
145 #ifdef TARGET_OS_FAMILY_linux
146 # include "c2_globals_linux.hpp"
147 #endif
148 #ifdef TARGET_OS_FAMILY_solaris
149 # include "c2_globals_solaris.hpp"
150 #endif
151 #ifdef TARGET_OS_FAMILY_windows
152 # include "c2_globals_windows.hpp"
153 #endif
154 #ifdef TARGET_OS_FAMILY_aix
155 # include "c2_globals_aix.hpp"
156 #endif
157 #ifdef TARGET_OS_FAMILY_bsd
158 # include "c2_globals_bsd.hpp"
159 #endif
160 #endif
161 #ifdef SHARK
162 #ifdef TARGET_ARCH_zero
163 # include "shark_globals_zero.hpp"
164 #endif
165 #endif
167 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK)
168 define_pd_global(bool, BackgroundCompilation, false);
169 define_pd_global(bool, UseTLAB, false);
170 define_pd_global(bool, CICompileOSR, false);
171 define_pd_global(bool, UseTypeProfile, false);
172 define_pd_global(bool, UseOnStackReplacement, false);
173 define_pd_global(bool, InlineIntrinsics, false);
174 define_pd_global(bool, PreferInterpreterNativeStubs, true);
175 define_pd_global(bool, ProfileInterpreter, false);
176 define_pd_global(bool, ProfileTraps, false);
177 define_pd_global(bool, TieredCompilation, false);
179 define_pd_global(intx, CompileThreshold, 0);
180 define_pd_global(intx, BackEdgeThreshold, 0);
182 define_pd_global(intx, OnStackReplacePercentage, 0);
183 define_pd_global(bool, ResizeTLAB, false);
184 define_pd_global(intx, FreqInlineSize, 0);
185 define_pd_global(intx, NewSizeThreadIncrease, 4*K);
186 define_pd_global(intx, InlineClassNatives, true);
187 define_pd_global(intx, InlineUnsafeOps, true);
188 define_pd_global(intx, InitialCodeCacheSize, 160*K);
189 define_pd_global(intx, ReservedCodeCacheSize, 32*M);
190 define_pd_global(intx, CodeCacheExpansionSize, 32*K);
191 define_pd_global(intx, CodeCacheMinBlockLength, 1);
192 define_pd_global(intx, CodeCacheMinimumUseSpace, 200*K);
193 define_pd_global(uintx,MetaspaceSize, ScaleForWordSize(4*M));
194 define_pd_global(bool, NeverActAsServerClassMachine, true);
195 define_pd_global(uint64_t,MaxRAM, 1ULL*G);
196 #define CI_COMPILER_COUNT 0
197 #else
199 #ifdef COMPILER2
200 #define CI_COMPILER_COUNT 2
201 #else
202 #define CI_COMPILER_COUNT 1
203 #endif // COMPILER2
205 #endif // no compilers
207 // string type aliases used only in this file
208 typedef const char* ccstr;
209 typedef const char* ccstrlist; // represents string arguments which accumulate
211 struct Flag {
212 enum Flags {
213 // value origin
214 DEFAULT = 0,
215 COMMAND_LINE = 1,
216 ENVIRON_VAR = 2,
217 CONFIG_FILE = 3,
218 MANAGEMENT = 4,
219 ERGONOMIC = 5,
220 ATTACH_ON_DEMAND = 6,
221 INTERNAL = 7,
223 LAST_VALUE_ORIGIN = INTERNAL,
224 VALUE_ORIGIN_BITS = 4,
225 VALUE_ORIGIN_MASK = right_n_bits(VALUE_ORIGIN_BITS),
227 // flag kind
228 KIND_PRODUCT = 1 << 4,
229 KIND_MANAGEABLE = 1 << 5,
230 KIND_DIAGNOSTIC = 1 << 6,
231 KIND_EXPERIMENTAL = 1 << 7,
232 KIND_NOT_PRODUCT = 1 << 8,
233 KIND_DEVELOP = 1 << 9,
234 KIND_PLATFORM_DEPENDENT = 1 << 10,
235 KIND_READ_WRITE = 1 << 11,
236 KIND_C1 = 1 << 12,
237 KIND_C2 = 1 << 13,
238 KIND_ARCH = 1 << 14,
239 KIND_SHARK = 1 << 15,
240 KIND_LP64_PRODUCT = 1 << 16,
241 KIND_COMMERCIAL = 1 << 17,
243 KIND_MASK = ~VALUE_ORIGIN_MASK
244 };
246 const char* _type;
247 const char* _name;
248 void* _addr;
249 NOT_PRODUCT(const char* _doc;)
250 Flags _flags;
252 // points to all Flags static array
253 static Flag* flags;
255 // number of flags
256 static size_t numFlags;
258 static Flag* find_flag(const char* name, size_t length, bool allow_locked = false, bool return_flag = false);
259 static Flag* fuzzy_match(const char* name, size_t length, bool allow_locked = false);
261 void check_writable();
263 bool is_bool() const;
264 bool get_bool() const;
265 void set_bool(bool value);
267 bool is_intx() const;
268 intx get_intx() const;
269 void set_intx(intx value);
271 bool is_uintx() const;
272 uintx get_uintx() const;
273 void set_uintx(uintx value);
275 bool is_uint64_t() const;
276 uint64_t get_uint64_t() const;
277 void set_uint64_t(uint64_t value);
279 bool is_double() const;
280 double get_double() const;
281 void set_double(double value);
283 bool is_ccstr() const;
284 bool ccstr_accumulates() const;
285 ccstr get_ccstr() const;
286 void set_ccstr(ccstr value);
288 Flags get_origin();
289 void set_origin(Flags origin);
291 bool is_default();
292 bool is_ergonomic();
293 bool is_command_line();
295 bool is_product() const;
296 bool is_manageable() const;
297 bool is_diagnostic() const;
298 bool is_experimental() const;
299 bool is_notproduct() const;
300 bool is_develop() const;
301 bool is_read_write() const;
302 bool is_commercial() const;
304 bool is_constant_in_binary() const;
306 bool is_unlocker() const;
307 bool is_unlocked() const;
308 bool is_writeable() const;
309 bool is_external() const;
311 bool is_unlocker_ext() const;
312 bool is_unlocked_ext() const;
313 bool is_writeable_ext() const;
314 bool is_external_ext() const;
316 void get_locked_message(char*, int) const;
317 void get_locked_message_ext(char*, int) const;
319 void print_on(outputStream* st, bool withComments = false );
320 void print_kind(outputStream* st);
321 void print_as_flag(outputStream* st);
322 };
324 // debug flags control various aspects of the VM and are global accessible
326 // use FlagSetting to temporarily change some debug flag
327 // e.g. FlagSetting fs(DebugThisAndThat, true);
328 // restored to previous value upon leaving scope
329 class FlagSetting {
330 bool val;
331 bool* flag;
332 public:
333 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; }
334 ~FlagSetting() { *flag = val; }
335 };
338 class CounterSetting {
339 intx* counter;
340 public:
341 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; }
342 ~CounterSetting() { (*counter)--; }
343 };
346 class UIntFlagSetting {
347 uintx val;
348 uintx* flag;
349 public:
350 UIntFlagSetting(uintx& fl, uintx newValue) { flag = &fl; val = fl; fl = newValue; }
351 ~UIntFlagSetting() { *flag = val; }
352 };
355 class DoubleFlagSetting {
356 double val;
357 double* flag;
358 public:
359 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; }
360 ~DoubleFlagSetting() { *flag = val; }
361 };
364 class CommandLineFlags {
365 public:
366 static bool boolAt(const char* name, size_t len, bool* value);
367 static bool boolAt(const char* name, bool* value) { return boolAt(name, strlen(name), value); }
368 static bool boolAtPut(const char* name, size_t len, bool* value, Flag::Flags origin);
369 static bool boolAtPut(const char* name, bool* value, Flag::Flags origin) { return boolAtPut(name, strlen(name), value, origin); }
371 static bool intxAt(const char* name, size_t len, intx* value);
372 static bool intxAt(const char* name, intx* value) { return intxAt(name, strlen(name), value); }
373 static bool intxAtPut(const char* name, size_t len, intx* value, Flag::Flags origin);
374 static bool intxAtPut(const char* name, intx* value, Flag::Flags origin) { return intxAtPut(name, strlen(name), value, origin); }
376 static bool uintxAt(const char* name, size_t len, uintx* value);
377 static bool uintxAt(const char* name, uintx* value) { return uintxAt(name, strlen(name), value); }
378 static bool uintxAtPut(const char* name, size_t len, uintx* value, Flag::Flags origin);
379 static bool uintxAtPut(const char* name, uintx* value, Flag::Flags origin) { return uintxAtPut(name, strlen(name), value, origin); }
381 static bool uint64_tAt(const char* name, size_t len, uint64_t* value);
382 static bool uint64_tAt(const char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); }
383 static bool uint64_tAtPut(const char* name, size_t len, uint64_t* value, Flag::Flags origin);
384 static bool uint64_tAtPut(const char* name, uint64_t* value, Flag::Flags origin) { return uint64_tAtPut(name, strlen(name), value, origin); }
386 static bool doubleAt(const char* name, size_t len, double* value);
387 static bool doubleAt(const char* name, double* value) { return doubleAt(name, strlen(name), value); }
388 static bool doubleAtPut(const char* name, size_t len, double* value, Flag::Flags origin);
389 static bool doubleAtPut(const char* name, double* value, Flag::Flags origin) { return doubleAtPut(name, strlen(name), value, origin); }
391 static bool ccstrAt(const char* name, size_t len, ccstr* value);
392 static bool ccstrAt(const char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); }
393 // Contract: Flag will make private copy of the incoming value.
394 // Outgoing value is always malloc-ed, and caller MUST call free.
395 static bool ccstrAtPut(const char* name, size_t len, ccstr* value, Flag::Flags origin);
396 static bool ccstrAtPut(const char* name, ccstr* value, Flag::Flags origin) { return ccstrAtPut(name, strlen(name), value, origin); }
398 // Returns false if name is not a command line flag.
399 static bool wasSetOnCmdline(const char* name, bool* value);
400 static void printSetFlags(outputStream* out);
402 static void printFlags(outputStream* out, bool withComments);
404 static void verify() PRODUCT_RETURN;
405 };
407 // use this for flags that are true by default in the debug version but
408 // false in the optimized version, and vice versa
409 #ifdef ASSERT
410 #define trueInDebug true
411 #define falseInDebug false
412 #else
413 #define trueInDebug false
414 #define falseInDebug true
415 #endif
417 // use this for flags that are true per default in the product build
418 // but false in development builds, and vice versa
419 #ifdef PRODUCT
420 #define trueInProduct true
421 #define falseInProduct false
422 #else
423 #define trueInProduct false
424 #define falseInProduct true
425 #endif
427 #ifdef JAVASE_EMBEDDED
428 #define falseInEmbedded false
429 #else
430 #define falseInEmbedded true
431 #endif
433 // develop flags are settable / visible only during development and are constant in the PRODUCT version
434 // product flags are always settable / visible
435 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version
437 // A flag must be declared with one of the following types:
438 // bool, intx, uintx, ccstr.
439 // The type "ccstr" is an alias for "const char*" and is used
440 // only in this file, because the macrology requires single-token type names.
442 // Note: Diagnostic options not meant for VM tuning or for product modes.
443 // They are to be used for VM quality assurance or field diagnosis
444 // of VM bugs. They are hidden so that users will not be encouraged to
445 // try them as if they were VM ordinary execution options. However, they
446 // are available in the product version of the VM. Under instruction
447 // from support engineers, VM customers can turn them on to collect
448 // diagnostic information about VM problems. To use a VM diagnostic
449 // option, you must first specify +UnlockDiagnosticVMOptions.
450 // (This master switch also affects the behavior of -Xprintflags.)
451 //
452 // experimental flags are in support of features that are not
453 // part of the officially supported product, but are available
454 // for experimenting with. They could, for example, be performance
455 // features that may not have undergone full or rigorous QA, but which may
456 // help performance in some cases and released for experimentation
457 // by the community of users and developers. This flag also allows one to
458 // be able to build a fully supported product that nonetheless also
459 // ships with some unsupported, lightly tested, experimental features.
460 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding
461 // UnlockExperimentalVMOptions flag, which allows the control and
462 // modification of the experimental flags.
463 //
464 // Nota bene: neither diagnostic nor experimental options should be used casually,
465 // and they are not supported on production loads, except under explicit
466 // direction from support engineers.
467 //
468 // manageable flags are writeable external product flags.
469 // They are dynamically writeable through the JDK management interface
470 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole.
471 // These flags are external exported interface (see CCC). The list of
472 // manageable flags can be queried programmatically through the management
473 // interface.
474 //
475 // A flag can be made as "manageable" only if
476 // - the flag is defined in a CCC as an external exported interface.
477 // - the VM implementation supports dynamic setting of the flag.
478 // This implies that the VM must *always* query the flag variable
479 // and not reuse state related to the flag state at any given time.
480 // - you want the flag to be queried programmatically by the customers.
481 //
482 // product_rw flags are writeable internal product flags.
483 // They are like "manageable" flags but for internal/private use.
484 // The list of product_rw flags are internal/private flags which
485 // may be changed/removed in a future release. It can be set
486 // through the management interface to get/set value
487 // when the name of flag is supplied.
488 //
489 // A flag can be made as "product_rw" only if
490 // - the VM implementation supports dynamic setting of the flag.
491 // This implies that the VM must *always* query the flag variable
492 // and not reuse state related to the flag state at any given time.
493 //
494 // Note that when there is a need to support develop flags to be writeable,
495 // it can be done in the same way as product_rw.
497 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \
498 \
499 lp64_product(bool, UseCompressedOops, false, \
500 "Use 32-bit object references in 64-bit VM. " \
501 "lp64_product means flag is always constant in 32 bit VM") \
502 \
503 lp64_product(bool, UseCompressedClassPointers, false, \
504 "Use 32-bit class pointers in 64-bit VM. " \
505 "lp64_product means flag is always constant in 32 bit VM") \
506 \
507 notproduct(bool, CheckCompressedOops, true, \
508 "Generate checks in encoding/decoding code in debug VM") \
509 \
510 product_pd(uintx, HeapBaseMinAddress, \
511 "OS specific low limit for heap base address") \
512 \
513 diagnostic(bool, PrintCompressedOopsMode, false, \
514 "Print compressed oops base address and encoding mode") \
515 \
516 lp64_product(intx, ObjectAlignmentInBytes, 8, \
517 "Default object alignment in bytes, 8 is minimum") \
518 \
519 product(bool, AssumeMP, false, \
520 "Instruct the VM to assume multiple processors are available") \
521 \
522 /* UseMembar is theoretically a temp flag used for memory barrier \
523 * removal testing. It was supposed to be removed before FCS but has \
524 * been re-added (see 6401008) */ \
525 product_pd(bool, UseMembar, \
526 "(Unstable) Issues membars on thread state transitions") \
527 \
528 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \
529 "Clean the chunk pool asynchronously") \
530 \
531 /* Temporary: See 6948537 */ \
532 experimental(bool, UseMemSetInBOT, true, \
533 "(Unstable) uses memset in BOT updates in GC code") \
534 \
535 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \
536 "Enable normal processing of flags relating to field diagnostics")\
537 \
538 experimental(bool, UnlockExperimentalVMOptions, false, \
539 "Enable normal processing of flags relating to experimental " \
540 "features") \
541 \
542 product(bool, JavaMonitorsInStackTrace, true, \
543 "Print information about Java monitor locks when the stacks are" \
544 "dumped") \
545 \
546 product_pd(bool, UseLargePages, \
547 "Use large page memory") \
548 \
549 product_pd(bool, UseLargePagesIndividualAllocation, \
550 "Allocate large pages individually for better affinity") \
551 \
552 develop(bool, LargePagesIndividualAllocationInjectError, false, \
553 "Fail large pages individual allocation") \
554 \
555 product(bool, UseLargePagesInMetaspace, false, \
556 "Use large page memory in metaspace. " \
557 "Only used if UseLargePages is enabled.") \
558 \
559 develop(bool, TracePageSizes, false, \
560 "Trace page size selection and usage") \
561 \
562 product(bool, UseNUMA, false, \
563 "Use NUMA if available") \
564 \
565 product(bool, UseNUMAInterleaving, false, \
566 "Interleave memory across NUMA nodes if available") \
567 \
568 product(uintx, NUMAInterleaveGranularity, 2*M, \
569 "Granularity to use for NUMA interleaving on Windows OS") \
570 \
571 product(bool, ForceNUMA, false, \
572 "Force NUMA optimizations on single-node/UMA systems") \
573 \
574 product(uintx, NUMAChunkResizeWeight, 20, \
575 "Percentage (0-100) used to weigh the current sample when " \
576 "computing exponentially decaying average for " \
577 "AdaptiveNUMAChunkSizing") \
578 \
579 product(uintx, NUMASpaceResizeRate, 1*G, \
580 "Do not reallocate more than this amount per collection") \
581 \
582 product(bool, UseAdaptiveNUMAChunkSizing, true, \
583 "Enable adaptive chunk sizing for NUMA") \
584 \
585 product(bool, NUMAStats, false, \
586 "Print NUMA stats in detailed heap information") \
587 \
588 product(uintx, NUMAPageScanRate, 256, \
589 "Maximum number of pages to include in the page scan procedure") \
590 \
591 product_pd(bool, NeedsDeoptSuspend, \
592 "True for register window machines (sparc/ia64)") \
593 \
594 product(intx, UseSSE, 99, \
595 "Highest supported SSE instructions set on x86/x64") \
596 \
597 product(bool, UseAES, false, \
598 "Control whether AES instructions can be used on x86/x64") \
599 \
600 product(bool, UseSHA, false, \
601 "Control whether SHA instructions can be used on SPARC") \
602 \
603 product(uintx, LargePageSizeInBytes, 0, \
604 "Large page size (0 to let VM choose the page size)") \
605 \
606 product(uintx, LargePageHeapSizeThreshold, 128*M, \
607 "Use large pages if maximum heap is at least this big") \
608 \
609 product(bool, ForceTimeHighResolution, false, \
610 "Using high time resolution (for Win32 only)") \
611 \
612 develop(bool, TraceItables, false, \
613 "Trace initialization and use of itables") \
614 \
615 develop(bool, TracePcPatching, false, \
616 "Trace usage of frame::patch_pc") \
617 \
618 develop(bool, TraceJumps, false, \
619 "Trace assembly jumps in thread ring buffer") \
620 \
621 develop(bool, TraceRelocator, false, \
622 "Trace the bytecode relocator") \
623 \
624 develop(bool, TraceLongCompiles, false, \
625 "Print out every time compilation is longer than " \
626 "a given threshold") \
627 \
628 develop(bool, SafepointALot, false, \
629 "Generate a lot of safepoints. This works with " \
630 "GuaranteedSafepointInterval") \
631 \
632 product_pd(bool, BackgroundCompilation, \
633 "A thread requesting compilation is not blocked during " \
634 "compilation") \
635 \
636 product(bool, PrintVMQWaitTime, false, \
637 "Print out the waiting time in VM operation queue") \
638 \
639 develop(bool, NoYieldsInMicrolock, false, \
640 "Disable yields in microlock") \
641 \
642 develop(bool, TraceOopMapGeneration, false, \
643 "Show OopMapGeneration") \
644 \
645 product(bool, MethodFlushing, true, \
646 "Reclamation of zombie and not-entrant methods") \
647 \
648 develop(bool, VerifyStack, false, \
649 "Verify stack of each thread when it is entering a runtime call") \
650 \
651 diagnostic(bool, ForceUnreachable, false, \
652 "Make all non code cache addresses to be unreachable by " \
653 "forcing use of 64bit literal fixups") \
654 \
655 notproduct(bool, StressDerivedPointers, false, \
656 "Force scavenge when a derived pointer is detected on stack " \
657 "after rtm call") \
658 \
659 develop(bool, TraceDerivedPointers, false, \
660 "Trace traversal of derived pointers on stack") \
661 \
662 notproduct(bool, TraceCodeBlobStacks, false, \
663 "Trace stack-walk of codeblobs") \
664 \
665 product(bool, PrintJNIResolving, false, \
666 "Used to implement -v:jni") \
667 \
668 notproduct(bool, PrintRewrites, false, \
669 "Print methods that are being rewritten") \
670 \
671 product(bool, UseInlineCaches, true, \
672 "Use Inline Caches for virtual calls ") \
673 \
674 develop(bool, InlineArrayCopy, true, \
675 "Inline arraycopy native that is known to be part of " \
676 "base library DLL") \
677 \
678 develop(bool, InlineObjectHash, true, \
679 "Inline Object::hashCode() native that is known to be part " \
680 "of base library DLL") \
681 \
682 develop(bool, InlineNatives, true, \
683 "Inline natives that are known to be part of base library DLL") \
684 \
685 develop(bool, InlineMathNatives, true, \
686 "Inline SinD, CosD, etc.") \
687 \
688 develop(bool, InlineClassNatives, true, \
689 "Inline Class.isInstance, etc") \
690 \
691 develop(bool, InlineThreadNatives, true, \
692 "Inline Thread.currentThread, etc") \
693 \
694 develop(bool, InlineUnsafeOps, true, \
695 "Inline memory ops (native methods) from sun.misc.Unsafe") \
696 \
697 product(bool, CriticalJNINatives, true, \
698 "Check for critical JNI entry points") \
699 \
700 notproduct(bool, StressCriticalJNINatives, false, \
701 "Exercise register saving code in critical natives") \
702 \
703 product(bool, UseSSE42Intrinsics, false, \
704 "SSE4.2 versions of intrinsics") \
705 \
706 product(bool, UseAESIntrinsics, false, \
707 "Use intrinsics for AES versions of crypto") \
708 \
709 product(bool, UseSHA1Intrinsics, false, \
710 "Use intrinsics for SHA-1 crypto hash function") \
711 \
712 product(bool, UseSHA256Intrinsics, false, \
713 "Use intrinsics for SHA-224 and SHA-256 crypto hash functions") \
714 \
715 product(bool, UseSHA512Intrinsics, false, \
716 "Use intrinsics for SHA-384 and SHA-512 crypto hash functions") \
717 \
718 product(bool, UseCRC32Intrinsics, false, \
719 "use intrinsics for java.util.zip.CRC32") \
720 \
721 develop(bool, TraceCallFixup, false, \
722 "Trace all call fixups") \
723 \
724 develop(bool, DeoptimizeALot, false, \
725 "Deoptimize at every exit from the runtime system") \
726 \
727 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \
728 "A comma separated list of bcis to deoptimize at") \
729 \
730 product(bool, DeoptimizeRandom, false, \
731 "Deoptimize random frames on random exit from the runtime system")\
732 \
733 notproduct(bool, ZombieALot, false, \
734 "Create zombies (non-entrant) at exit from the runtime system") \
735 \
736 product(bool, UnlinkSymbolsALot, false, \
737 "Unlink unreferenced symbols from the symbol table at safepoints")\
738 \
739 notproduct(bool, WalkStackALot, false, \
740 "Trace stack (no print) at every exit from the runtime system") \
741 \
742 product(bool, Debugging, false, \
743 "Set when executing debug methods in debug.cpp " \
744 "(to prevent triggering assertions)") \
745 \
746 notproduct(bool, StrictSafepointChecks, trueInDebug, \
747 "Enable strict checks that safepoints cannot happen for threads " \
748 "that use No_Safepoint_Verifier") \
749 \
750 notproduct(bool, VerifyLastFrame, false, \
751 "Verify oops on last frame on entry to VM") \
752 \
753 develop(bool, TraceHandleAllocation, false, \
754 "Print out warnings when suspiciously many handles are allocated")\
755 \
756 product(bool, UseCompilerSafepoints, true, \
757 "Stop at safepoints in compiled code") \
758 \
759 product(bool, FailOverToOldVerifier, true, \
760 "Fail over to old verifier when split verifier fails") \
761 \
762 develop(bool, ShowSafepointMsgs, false, \
763 "Show message about safepoint synchronization") \
764 \
765 product(bool, SafepointTimeout, false, \
766 "Time out and warn or fail after SafepointTimeoutDelay " \
767 "milliseconds if failed to reach safepoint") \
768 \
769 develop(bool, DieOnSafepointTimeout, false, \
770 "Die upon failure to reach safepoint (see SafepointTimeout)") \
771 \
772 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \
773 /* typically, at most a few retries are needed */ \
774 product(intx, SuspendRetryCount, 50, \
775 "Maximum retry count for an external suspend request") \
776 \
777 product(intx, SuspendRetryDelay, 5, \
778 "Milliseconds to delay per retry (* current_retry_count)") \
779 \
780 product(bool, AssertOnSuspendWaitFailure, false, \
781 "Assert/Guarantee on external suspend wait failure") \
782 \
783 product(bool, TraceSuspendWaitFailures, false, \
784 "Trace external suspend wait failures") \
785 \
786 product(bool, MaxFDLimit, true, \
787 "Bump the number of file descriptors to maximum in Solaris") \
788 \
789 diagnostic(bool, LogEvents, true, \
790 "Enable the various ring buffer event logs") \
791 \
792 diagnostic(uintx, LogEventsBufferEntries, 10, \
793 "Number of ring buffer event logs") \
794 \
795 product(bool, BytecodeVerificationRemote, true, \
796 "Enable the Java bytecode verifier for remote classes") \
797 \
798 product(bool, BytecodeVerificationLocal, false, \
799 "Enable the Java bytecode verifier for local classes") \
800 \
801 develop(bool, ForceFloatExceptions, trueInDebug, \
802 "Force exceptions on FP stack under/overflow") \
803 \
804 develop(bool, VerifyStackAtCalls, false, \
805 "Verify that the stack pointer is unchanged after calls") \
806 \
807 develop(bool, TraceJavaAssertions, false, \
808 "Trace java language assertions") \
809 \
810 notproduct(bool, CheckAssertionStatusDirectives, false, \
811 "Temporary - see javaClasses.cpp") \
812 \
813 notproduct(bool, PrintMallocFree, false, \
814 "Trace calls to C heap malloc/free allocation") \
815 \
816 product(bool, PrintOopAddress, false, \
817 "Always print the location of the oop") \
818 \
819 notproduct(bool, VerifyCodeCacheOften, false, \
820 "Verify compiled-code cache often") \
821 \
822 develop(bool, ZapDeadCompiledLocals, false, \
823 "Zap dead locals in compiler frames") \
824 \
825 notproduct(bool, ZapDeadLocalsOld, false, \
826 "Zap dead locals (old version, zaps all frames when " \
827 "entering the VM") \
828 \
829 notproduct(bool, CheckOopishValues, false, \
830 "Warn if value contains oop (requires ZapDeadLocals)") \
831 \
832 develop(bool, UseMallocOnly, false, \
833 "Use only malloc/free for allocation (no resource area/arena)") \
834 \
835 develop(bool, PrintMalloc, false, \
836 "Print all malloc/free calls") \
837 \
838 develop(bool, PrintMallocStatistics, false, \
839 "Print malloc/free statistics") \
840 \
841 develop(bool, ZapResourceArea, trueInDebug, \
842 "Zap freed resource/arena space with 0xABABABAB") \
843 \
844 notproduct(bool, ZapVMHandleArea, trueInDebug, \
845 "Zap freed VM handle space with 0xBCBCBCBC") \
846 \
847 develop(bool, ZapJNIHandleArea, trueInDebug, \
848 "Zap freed JNI handle space with 0xFEFEFEFE") \
849 \
850 notproduct(bool, ZapStackSegments, trueInDebug, \
851 "Zap allocated/freed stack segments with 0xFADFADED") \
852 \
853 develop(bool, ZapUnusedHeapArea, trueInDebug, \
854 "Zap unused heap space with 0xBAADBABE") \
855 \
856 develop(bool, TraceZapUnusedHeapArea, false, \
857 "Trace zapping of unused heap space") \
858 \
859 develop(bool, CheckZapUnusedHeapArea, false, \
860 "Check zapping of unused heap space") \
861 \
862 develop(bool, ZapFillerObjects, trueInDebug, \
863 "Zap filler objects with 0xDEAFBABE") \
864 \
865 develop(bool, PrintVMMessages, true, \
866 "Print VM messages on console") \
867 \
868 product(bool, PrintGCApplicationConcurrentTime, false, \
869 "Print the time the application has been running") \
870 \
871 product(bool, PrintGCApplicationStoppedTime, false, \
872 "Print the time the application has been stopped") \
873 \
874 diagnostic(bool, VerboseVerification, false, \
875 "Display detailed verification details") \
876 \
877 notproduct(uintx, ErrorHandlerTest, 0, \
878 "If > 0, provokes an error after VM initialization; the value " \
879 "determines which error to provoke. See test_error_handler() " \
880 "in debug.cpp.") \
881 \
882 develop(bool, Verbose, false, \
883 "Print additional debugging information from other modes") \
884 \
885 develop(bool, PrintMiscellaneous, false, \
886 "Print uncategorized debugging information (requires +Verbose)") \
887 \
888 develop(bool, WizardMode, false, \
889 "Print much more debugging information") \
890 \
891 product(bool, ShowMessageBoxOnError, false, \
892 "Keep process alive on VM fatal error") \
893 \
894 product(bool, CreateMinidumpOnCrash, false, \
895 "Create minidump on VM fatal error") \
896 \
897 product_pd(bool, UseOSErrorReporting, \
898 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \
899 \
900 product(bool, SuppressFatalErrorMessage, false, \
901 "Report NO fatal error message (avoid deadlock)") \
902 \
903 product(ccstrlist, OnError, "", \
904 "Run user-defined commands on fatal error; see VMError.cpp " \
905 "for examples") \
906 \
907 product(ccstrlist, OnOutOfMemoryError, "", \
908 "Run user-defined commands on first java.lang.OutOfMemoryError") \
909 \
910 manageable(bool, HeapDumpBeforeFullGC, false, \
911 "Dump heap to file before any major stop-the-world GC") \
912 \
913 manageable(bool, HeapDumpAfterFullGC, false, \
914 "Dump heap to file after any major stop-the-world GC") \
915 \
916 manageable(bool, HeapDumpOnOutOfMemoryError, false, \
917 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \
918 \
919 manageable(ccstr, HeapDumpPath, NULL, \
920 "When HeapDumpOnOutOfMemoryError is on, the path (filename or " \
921 "directory) of the dump file (defaults to java_pid<pid>.hprof " \
922 "in the working directory)") \
923 \
924 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \
925 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \
926 "when the heap usage is larger than this") \
927 \
928 develop(uintx, HeapDumpSegmentSize, 1*G, \
929 "Approximate segment size when generating a segmented heap dump") \
930 \
931 develop(bool, BreakAtWarning, false, \
932 "Execute breakpoint upon encountering VM warning") \
933 \
934 develop(bool, TraceVMOperation, false, \
935 "Trace VM operations") \
936 \
937 develop(bool, UseFakeTimers, false, \
938 "Tell whether the VM should use system time or a fake timer") \
939 \
940 product(ccstr, NativeMemoryTracking, "off", \
941 "Native memory tracking options") \
942 \
943 diagnostic(bool, PrintNMTStatistics, false, \
944 "Print native memory tracking summary data if it is on") \
945 \
946 diagnostic(bool, LogCompilation, false, \
947 "Log compilation activity in detail to LogFile") \
948 \
949 product(bool, PrintCompilation, false, \
950 "Print compilations") \
951 \
952 diagnostic(bool, TraceNMethodInstalls, false, \
953 "Trace nmethod installation") \
954 \
955 diagnostic(intx, ScavengeRootsInCode, 2, \
956 "0: do not allow scavengable oops in the code cache; " \
957 "1: allow scavenging from the code cache; " \
958 "2: emit as many constants as the compiler can see") \
959 \
960 product(bool, AlwaysRestoreFPU, false, \
961 "Restore the FPU control word after every JNI call (expensive)") \
962 \
963 diagnostic(bool, PrintCompilation2, false, \
964 "Print additional statistics per compilation") \
965 \
966 diagnostic(bool, PrintAdapterHandlers, false, \
967 "Print code generated for i2c/c2i adapters") \
968 \
969 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \
970 "Verify that i2c/c2i adapters are called properly") \
971 \
972 develop(bool, VerifyAdapterSharing, false, \
973 "Verify that the code for shared adapters is the equivalent") \
974 \
975 diagnostic(bool, PrintAssembly, false, \
976 "Print assembly code (using external disassembler.so)") \
977 \
978 diagnostic(ccstr, PrintAssemblyOptions, NULL, \
979 "Print options string passed to disassembler.so") \
980 \
981 diagnostic(bool, PrintNMethods, false, \
982 "Print assembly code for nmethods when generated") \
983 \
984 diagnostic(bool, PrintNativeNMethods, false, \
985 "Print assembly code for native nmethods when generated") \
986 \
987 develop(bool, PrintDebugInfo, false, \
988 "Print debug information for all nmethods when generated") \
989 \
990 develop(bool, PrintRelocations, false, \
991 "Print relocation information for all nmethods when generated") \
992 \
993 develop(bool, PrintDependencies, false, \
994 "Print dependency information for all nmethods when generated") \
995 \
996 develop(bool, PrintExceptionHandlers, false, \
997 "Print exception handler tables for all nmethods when generated") \
998 \
999 develop(bool, StressCompiledExceptionHandlers, false, \
1000 "Exercise compiled exception handlers") \
1001 \
1002 develop(bool, InterceptOSException, false, \
1003 "Start debugger when an implicit OS (e.g. NULL) " \
1004 "exception happens") \
1005 \
1006 product(bool, PrintCodeCache, false, \
1007 "Print the code cache memory usage when exiting") \
1008 \
1009 develop(bool, PrintCodeCache2, false, \
1010 "Print detailed usage information on the code cache when exiting")\
1011 \
1012 product(bool, PrintCodeCacheOnCompilation, false, \
1013 "Print the code cache memory usage each time a method is " \
1014 "compiled") \
1015 \
1016 diagnostic(bool, PrintStubCode, false, \
1017 "Print generated stub code") \
1018 \
1019 product(bool, StackTraceInThrowable, true, \
1020 "Collect backtrace in throwable when exception happens") \
1021 \
1022 product(bool, OmitStackTraceInFastThrow, true, \
1023 "Omit backtraces for some 'hot' exceptions in optimized code") \
1024 \
1025 product(bool, ProfilerPrintByteCodeStatistics, false, \
1026 "Print bytecode statistics when dumping profiler output") \
1027 \
1028 product(bool, ProfilerRecordPC, false, \
1029 "Collect ticks for each 16 byte interval of compiled code") \
1030 \
1031 product(bool, ProfileVM, false, \
1032 "Profile ticks that fall within VM (either in the VM Thread " \
1033 "or VM code called through stubs)") \
1034 \
1035 product(bool, ProfileIntervals, false, \
1036 "Print profiles for each interval (see ProfileIntervalsTicks)") \
1037 \
1038 notproduct(bool, ProfilerCheckIntervals, false, \
1039 "Collect and print information on spacing of profiler ticks") \
1040 \
1041 develop(bool, PrintJVMWarnings, false, \
1042 "Print warnings for unimplemented JVM functions") \
1043 \
1044 product(bool, PrintWarnings, true, \
1045 "Print JVM warnings to output stream") \
1046 \
1047 notproduct(uintx, WarnOnStalledSpinLock, 0, \
1048 "Print warnings for stalled SpinLocks") \
1049 \
1050 product(bool, RegisterFinalizersAtInit, true, \
1051 "Register finalizable objects at end of Object.<init> or " \
1052 "after allocation") \
1053 \
1054 develop(bool, RegisterReferences, true, \
1055 "Tell whether the VM should register soft/weak/final/phantom " \
1056 "references") \
1057 \
1058 develop(bool, IgnoreRewrites, false, \
1059 "Suppress rewrites of bytecodes in the oopmap generator. " \
1060 "This is unsafe!") \
1061 \
1062 develop(bool, PrintCodeCacheExtension, false, \
1063 "Print extension of code cache") \
1064 \
1065 develop(bool, UsePrivilegedStack, true, \
1066 "Enable the security JVM functions") \
1067 \
1068 develop(bool, ProtectionDomainVerification, true, \
1069 "Verify protection domain before resolution in system dictionary")\
1070 \
1071 product(bool, ClassUnloading, true, \
1072 "Do unloading of classes") \
1073 \
1074 product(bool, ClassUnloadingWithConcurrentMark, true, \
1075 "Do unloading of classes with a concurrent marking cycle") \
1076 \
1077 develop(bool, DisableStartThread, false, \
1078 "Disable starting of additional Java threads " \
1079 "(for debugging only)") \
1080 \
1081 develop(bool, MemProfiling, false, \
1082 "Write memory usage profiling to log file") \
1083 \
1084 notproduct(bool, PrintSystemDictionaryAtExit, false, \
1085 "Print the system dictionary at exit") \
1086 \
1087 experimental(intx, PredictedLoadedClassCount, 0, \
1088 "Experimental: Tune loaded class cache starting size") \
1089 \
1090 diagnostic(bool, UnsyncloadClass, false, \
1091 "Unstable: VM calls loadClass unsynchronized. Custom " \
1092 "class loader must call VM synchronized for findClass " \
1093 "and defineClass.") \
1094 \
1095 product(bool, AlwaysLockClassLoader, false, \
1096 "Require the VM to acquire the class loader lock before calling " \
1097 "loadClass() even for class loaders registering " \
1098 "as parallel capable") \
1099 \
1100 product(bool, AllowParallelDefineClass, false, \
1101 "Allow parallel defineClass requests for class loaders " \
1102 "registering as parallel capable") \
1103 \
1104 product(bool, MustCallLoadClassInternal, false, \
1105 "Call loadClassInternal() rather than loadClass()") \
1106 \
1107 product_pd(bool, DontYieldALot, \
1108 "Throw away obvious excess yield calls (for Solaris only)") \
1109 \
1110 product_pd(bool, ConvertSleepToYield, \
1111 "Convert sleep(0) to thread yield " \
1112 "(may be off for Solaris to improve GUI)") \
1113 \
1114 product(bool, ConvertYieldToSleep, false, \
1115 "Convert yield to a sleep of MinSleepInterval to simulate Win32 " \
1116 "behavior (Solaris only)") \
1117 \
1118 product(bool, UseBoundThreads, true, \
1119 "Bind user level threads to kernel threads (for Solaris only)") \
1120 \
1121 develop(bool, UseDetachedThreads, true, \
1122 "Use detached threads that are recycled upon termination " \
1123 "(for Solaris only)") \
1124 \
1125 product(bool, UseLWPSynchronization, true, \
1126 "Use LWP-based instead of libthread-based synchronization " \
1127 "(SPARC only)") \
1128 \
1129 product(ccstr, SyncKnobs, NULL, \
1130 "(Unstable) Various monitor synchronization tunables") \
1131 \
1132 product(intx, EmitSync, 0, \
1133 "(Unsafe, Unstable) " \
1134 "Control emission of inline sync fast-path code") \
1135 \
1136 product(intx, MonitorBound, 0, "Bound Monitor population") \
1137 \
1138 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \
1139 \
1140 product(intx, SyncFlags, 0, "(Unsafe, Unstable) Experimental Sync flags") \
1141 \
1142 product(intx, SyncVerbose, 0, "(Unstable)") \
1143 \
1144 product(intx, ClearFPUAtPark, 0, "(Unsafe, Unstable)") \
1145 \
1146 product(intx, hashCode, 5, \
1147 "(Unstable) select hashCode generation algorithm") \
1148 \
1149 product(intx, WorkAroundNPTLTimedWaitHang, 1, \
1150 "(Unstable, Linux-specific) " \
1151 "avoid NPTL-FUTEX hang pthread_cond_timedwait") \
1152 \
1153 product(bool, FilterSpuriousWakeups, true, \
1154 "Prevent spurious or premature wakeups from object.wait " \
1155 "(Solaris only)") \
1156 \
1157 product(intx, NativeMonitorTimeout, -1, "(Unstable)") \
1158 \
1159 product(intx, NativeMonitorFlags, 0, "(Unstable)") \
1160 \
1161 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)") \
1162 \
1163 develop(bool, UsePthreads, false, \
1164 "Use pthread-based instead of libthread-based synchronization " \
1165 "(SPARC only)") \
1166 \
1167 product(bool, AdjustConcurrency, false, \
1168 "Call thr_setconcurrency at thread creation time to avoid " \
1169 "LWP starvation on MP systems (for Solaris Only)") \
1170 \
1171 product(bool, ReduceSignalUsage, false, \
1172 "Reduce the use of OS signals in Java and/or the VM") \
1173 \
1174 develop_pd(bool, ShareVtableStubs, \
1175 "Share vtable stubs (smaller code but worse branch prediction") \
1176 \
1177 develop(bool, LoadLineNumberTables, true, \
1178 "Tell whether the class file parser loads line number tables") \
1179 \
1180 develop(bool, LoadLocalVariableTables, true, \
1181 "Tell whether the class file parser loads local variable tables") \
1182 \
1183 develop(bool, LoadLocalVariableTypeTables, true, \
1184 "Tell whether the class file parser loads local variable type" \
1185 "tables") \
1186 \
1187 product(bool, AllowUserSignalHandlers, false, \
1188 "Do not complain if the application installs signal handlers " \
1189 "(Solaris & Linux only)") \
1190 \
1191 product(bool, UseSignalChaining, true, \
1192 "Use signal-chaining to invoke signal handlers installed " \
1193 "by the application (Solaris & Linux only)") \
1194 \
1195 product(bool, UseAltSigs, false, \
1196 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \
1197 "internal signals (Solaris only)") \
1198 \
1199 product(bool, AllowJNIEnvProxy, false, \
1200 "Allow JNIEnv proxies for jdbx") \
1201 \
1202 product(bool, JNIDetachReleasesMonitors, true, \
1203 "JNI DetachCurrentThread releases monitors owned by thread") \
1204 \
1205 product(bool, RestoreMXCSROnJNICalls, false, \
1206 "Restore MXCSR when returning from JNI calls") \
1207 \
1208 product(bool, CheckJNICalls, false, \
1209 "Verify all arguments to JNI calls") \
1210 \
1211 product(bool, UseFastJNIAccessors, true, \
1212 "Use optimized versions of Get<Primitive>Field") \
1213 \
1214 product(intx, MaxJNILocalCapacity, 65536, \
1215 "Maximum allowable local JNI handle capacity to " \
1216 "EnsureLocalCapacity() and PushLocalFrame(), " \
1217 "where <= 0 is unlimited, default: 65536") \
1218 \
1219 product(bool, EagerXrunInit, false, \
1220 "Eagerly initialize -Xrun libraries; allows startup profiling, " \
1221 "but not all -Xrun libraries may support the state of the VM " \
1222 "at this time") \
1223 \
1224 product(bool, PreserveAllAnnotations, false, \
1225 "Preserve RuntimeInvisibleAnnotations as well " \
1226 "as RuntimeVisibleAnnotations") \
1227 \
1228 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \
1229 "Number of OutOfMemoryErrors preallocated with backtrace") \
1230 \
1231 product(bool, LazyBootClassLoader, true, \
1232 "Enable/disable lazy opening of boot class path entries") \
1233 \
1234 product(bool, UseXMMForArrayCopy, false, \
1235 "Use SSE2 MOVQ instruction for Arraycopy") \
1236 \
1237 product(intx, FieldsAllocationStyle, 1, \
1238 "0 - type based with oops first, 1 - with oops last, " \
1239 "2 - oops in super and sub classes are together") \
1240 \
1241 product(bool, CompactFields, true, \
1242 "Allocate nonstatic fields in gaps between previous fields") \
1243 \
1244 notproduct(bool, PrintFieldLayout, false, \
1245 "Print field layout for each class") \
1246 \
1247 product(intx, ContendedPaddingWidth, 128, \
1248 "How many bytes to pad the fields/classes marked @Contended with")\
1249 \
1250 product(bool, EnableContended, true, \
1251 "Enable @Contended annotation support") \
1252 \
1253 product(bool, RestrictContended, true, \
1254 "Restrict @Contended to trusted classes") \
1255 \
1256 product(bool, UseBiasedLocking, true, \
1257 "Enable biased locking in JVM") \
1258 \
1259 product(intx, BiasedLockingStartupDelay, 4000, \
1260 "Number of milliseconds to wait before enabling biased locking") \
1261 \
1262 diagnostic(bool, PrintBiasedLockingStatistics, false, \
1263 "Print statistics of biased locking in JVM") \
1264 \
1265 product(intx, BiasedLockingBulkRebiasThreshold, 20, \
1266 "Threshold of number of revocations per type to try to " \
1267 "rebias all objects in the heap of that type") \
1268 \
1269 product(intx, BiasedLockingBulkRevokeThreshold, 40, \
1270 "Threshold of number of revocations per type to permanently " \
1271 "revoke biases of all objects in the heap of that type") \
1272 \
1273 product(intx, BiasedLockingDecayTime, 25000, \
1274 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \
1275 "type after previous bulk rebias") \
1276 \
1277 /* tracing */ \
1278 \
1279 notproduct(bool, TraceRuntimeCalls, false, \
1280 "Trace run-time calls") \
1281 \
1282 develop(bool, TraceJNICalls, false, \
1283 "Trace JNI calls") \
1284 \
1285 develop(bool, StressRewriter, false, \
1286 "Stress linktime bytecode rewriting") \
1287 \
1288 notproduct(bool, TraceJVMCalls, false, \
1289 "Trace JVM calls") \
1290 \
1291 product(ccstr, TraceJVMTI, NULL, \
1292 "Trace flags for JVMTI functions and events") \
1293 \
1294 /* This option can change an EMCP method into an obsolete method. */ \
1295 /* This can affect tests that except specific methods to be EMCP. */ \
1296 /* This option should be used with caution. */ \
1297 product(bool, StressLdcRewrite, false, \
1298 "Force ldc -> ldc_w rewrite during RedefineClasses") \
1299 \
1300 product(intx, TraceRedefineClasses, 0, \
1301 "Trace level for JVMTI RedefineClasses") \
1302 \
1303 develop(bool, StressMethodComparator, false, \
1304 "Run the MethodComparator on all loaded methods") \
1305 \
1306 /* change to false by default sometime after Mustang */ \
1307 product(bool, VerifyMergedCPBytecodes, true, \
1308 "Verify bytecodes after RedefineClasses constant pool merging") \
1309 \
1310 develop(bool, TraceJNIHandleAllocation, false, \
1311 "Trace allocation/deallocation of JNI handle blocks") \
1312 \
1313 develop(bool, TraceThreadEvents, false, \
1314 "Trace all thread events") \
1315 \
1316 develop(bool, TraceBytecodes, false, \
1317 "Trace bytecode execution") \
1318 \
1319 develop(bool, TraceClassInitialization, false, \
1320 "Trace class initialization") \
1321 \
1322 develop(bool, TraceExceptions, false, \
1323 "Trace exceptions") \
1324 \
1325 develop(bool, TraceICs, false, \
1326 "Trace inline cache changes") \
1327 \
1328 notproduct(bool, TraceInvocationCounterOverflow, false, \
1329 "Trace method invocation counter overflow") \
1330 \
1331 develop(bool, TraceInlineCacheClearing, false, \
1332 "Trace clearing of inline caches in nmethods") \
1333 \
1334 develop(bool, TraceDependencies, false, \
1335 "Trace dependencies") \
1336 \
1337 develop(bool, VerifyDependencies, trueInDebug, \
1338 "Exercise and verify the compilation dependency mechanism") \
1339 \
1340 develop(bool, TraceNewOopMapGeneration, false, \
1341 "Trace OopMapGeneration") \
1342 \
1343 develop(bool, TraceNewOopMapGenerationDetailed, false, \
1344 "Trace OopMapGeneration: print detailed cell states") \
1345 \
1346 develop(bool, TimeOopMap, false, \
1347 "Time calls to GenerateOopMap::compute_map() in sum") \
1348 \
1349 develop(bool, TimeOopMap2, false, \
1350 "Time calls to GenerateOopMap::compute_map() individually") \
1351 \
1352 develop(bool, TraceMonitorMismatch, false, \
1353 "Trace monitor matching failures during OopMapGeneration") \
1354 \
1355 develop(bool, TraceOopMapRewrites, false, \
1356 "Trace rewriting of method oops during oop map generation") \
1357 \
1358 develop(bool, TraceSafepoint, false, \
1359 "Trace safepoint operations") \
1360 \
1361 develop(bool, TraceICBuffer, false, \
1362 "Trace usage of IC buffer") \
1363 \
1364 develop(bool, TraceCompiledIC, false, \
1365 "Trace changes of compiled IC") \
1366 \
1367 notproduct(bool, TraceZapDeadLocals, false, \
1368 "Trace zapping dead locals") \
1369 \
1370 develop(bool, TraceStartupTime, false, \
1371 "Trace setup time") \
1372 \
1373 develop(bool, TraceProtectionDomainVerification, false, \
1374 "Trace protection domain verification") \
1375 \
1376 develop(bool, TraceClearedExceptions, false, \
1377 "Print when an exception is forcibly cleared") \
1378 \
1379 product(bool, TraceClassResolution, false, \
1380 "Trace all constant pool resolutions (for debugging)") \
1381 \
1382 product(bool, TraceBiasedLocking, false, \
1383 "Trace biased locking in JVM") \
1384 \
1385 product(bool, TraceMonitorInflation, false, \
1386 "Trace monitor inflation in JVM") \
1387 \
1388 /* gc */ \
1389 \
1390 product(bool, UseSerialGC, false, \
1391 "Use the Serial garbage collector") \
1392 \
1393 product(bool, UseG1GC, false, \
1394 "Use the Garbage-First garbage collector") \
1395 \
1396 product(bool, UseParallelGC, false, \
1397 "Use the Parallel Scavenge garbage collector") \
1398 \
1399 product(bool, UseParallelOldGC, false, \
1400 "Use the Parallel Old garbage collector") \
1401 \
1402 product(uintx, HeapMaximumCompactionInterval, 20, \
1403 "How often should we maximally compact the heap (not allowing " \
1404 "any dead space)") \
1405 \
1406 product(uintx, HeapFirstMaximumCompactionCount, 3, \
1407 "The collection count for the first maximum compaction") \
1408 \
1409 product(bool, UseMaximumCompactionOnSystemGC, true, \
1410 "Use maximum compaction in the Parallel Old garbage collector " \
1411 "for a system GC") \
1412 \
1413 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \
1414 "The mean used by the parallel compact dead wood " \
1415 "limiter (a number between 0-100)") \
1416 \
1417 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \
1418 "The standard deviation used by the parallel compact dead wood " \
1419 "limiter (a number between 0-100)") \
1420 \
1421 product(uintx, ParallelGCThreads, 0, \
1422 "Number of parallel threads parallel gc will use") \
1423 \
1424 product(bool, UseDynamicNumberOfGCThreads, false, \
1425 "Dynamically choose the number of parallel threads " \
1426 "parallel gc will use") \
1427 \
1428 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \
1429 "Force dynamic selection of the number of " \
1430 "parallel threads parallel gc will use to aid debugging") \
1431 \
1432 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \
1433 "Size of heap (bytes) per GC thread used in calculating the " \
1434 "number of GC threads") \
1435 \
1436 product(bool, TraceDynamicGCThreads, false, \
1437 "Trace the dynamic GC thread usage") \
1438 \
1439 develop(bool, ParallelOldGCSplitALot, false, \
1440 "Provoke splitting (copying data from a young gen space to " \
1441 "multiple destination spaces)") \
1442 \
1443 develop(uintx, ParallelOldGCSplitInterval, 3, \
1444 "How often to provoke splitting a young gen space") \
1445 \
1446 product(uintx, ConcGCThreads, 0, \
1447 "Number of threads concurrent gc will use") \
1448 \
1449 product(uintx, YoungPLABSize, 4096, \
1450 "Size of young gen promotion LAB's (in HeapWords)") \
1451 \
1452 product(uintx, OldPLABSize, 1024, \
1453 "Size of old gen promotion LAB's (in HeapWords)") \
1454 \
1455 product(uintx, GCTaskTimeStampEntries, 200, \
1456 "Number of time stamp entries per gc worker thread") \
1457 \
1458 product(bool, AlwaysTenure, false, \
1459 "Always tenure objects in eden (ParallelGC only)") \
1460 \
1461 product(bool, NeverTenure, false, \
1462 "Never tenure objects in eden, may tenure on overflow " \
1463 "(ParallelGC only)") \
1464 \
1465 product(bool, ScavengeBeforeFullGC, true, \
1466 "Scavenge youngest generation before each full GC, " \
1467 "used with UseParallelGC") \
1468 \
1469 develop(bool, ScavengeWithObjectsInToSpace, false, \
1470 "Allow scavenges to occur when to-space contains objects") \
1471 \
1472 product(bool, UseConcMarkSweepGC, false, \
1473 "Use Concurrent Mark-Sweep GC in the old generation") \
1474 \
1475 product(bool, ExplicitGCInvokesConcurrent, false, \
1476 "A System.gc() request invokes a concurrent collection; " \
1477 "(effective only when UseConcMarkSweepGC)") \
1478 \
1479 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \
1480 "A System.gc() request invokes a concurrent collection and " \
1481 "also unloads classes during such a concurrent gc cycle " \
1482 "(effective only when UseConcMarkSweepGC)") \
1483 \
1484 product(bool, GCLockerInvokesConcurrent, false, \
1485 "The exit of a JNI critical section necessitating a scavenge, " \
1486 "also kicks off a background concurrent collection") \
1487 \
1488 product(uintx, GCLockerEdenExpansionPercent, 5, \
1489 "How much the GC can expand the eden by while the GC locker " \
1490 "is active (as a percentage)") \
1491 \
1492 diagnostic(intx, GCLockerRetryAllocationCount, 2, \
1493 "Number of times to retry allocations when " \
1494 "blocked by the GC locker") \
1495 \
1496 develop(bool, UseCMSAdaptiveFreeLists, true, \
1497 "Use adaptive free lists in the CMS generation") \
1498 \
1499 develop(bool, UseAsyncConcMarkSweepGC, true, \
1500 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\
1501 \
1502 develop(bool, RotateCMSCollectionTypes, false, \
1503 "Rotate the CMS collections among concurrent and STW") \
1504 \
1505 product(bool, UseCMSBestFit, true, \
1506 "Use CMS best fit allocation strategy") \
1507 \
1508 product(bool, UseCMSCollectionPassing, true, \
1509 "Use passing of collection from background to foreground") \
1510 \
1511 product(bool, UseParNewGC, false, \
1512 "Use parallel threads in the new generation") \
1513 \
1514 product(bool, ParallelGCVerbose, false, \
1515 "Verbose output for parallel gc") \
1516 \
1517 product(uintx, ParallelGCBufferWastePct, 10, \
1518 "Wasted fraction of parallel allocation buffer") \
1519 \
1520 diagnostic(bool, ParallelGCRetainPLAB, false, \
1521 "Retain parallel allocation buffers across scavenges; " \
1522 "it is disabled because this currently conflicts with " \
1523 "parallel card scanning under certain conditions.") \
1524 \
1525 product(uintx, TargetPLABWastePct, 10, \
1526 "Target wasted space in last buffer as percent of overall " \
1527 "allocation") \
1528 \
1529 product(uintx, PLABWeight, 75, \
1530 "Percentage (0-100) used to weigh the current sample when " \
1531 "computing exponentially decaying average for ResizePLAB") \
1532 \
1533 product(bool, ResizePLAB, true, \
1534 "Dynamically resize (survivor space) promotion LAB's") \
1535 \
1536 product(bool, PrintPLAB, false, \
1537 "Print (survivor space) promotion LAB's sizing decisions") \
1538 \
1539 product(intx, ParGCArrayScanChunk, 50, \
1540 "Scan a subset of object array and push remainder, if array is " \
1541 "bigger than this") \
1542 \
1543 product(bool, ParGCUseLocalOverflow, false, \
1544 "Instead of a global overflow list, use local overflow stacks") \
1545 \
1546 product(bool, ParGCTrimOverflow, true, \
1547 "Eagerly trim the local overflow lists " \
1548 "(when ParGCUseLocalOverflow)") \
1549 \
1550 notproduct(bool, ParGCWorkQueueOverflowALot, false, \
1551 "Simulate work queue overflow in ParNew") \
1552 \
1553 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \
1554 "An `interval' counter that determines how frequently " \
1555 "we simulate overflow; a smaller number increases frequency") \
1556 \
1557 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \
1558 "The desired number of objects to claim from the overflow list") \
1559 \
1560 diagnostic(uintx, ParGCStridesPerThread, 2, \
1561 "The number of strides per worker thread that we divide up the " \
1562 "card table scanning work into") \
1563 \
1564 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \
1565 "The number of cards in each chunk of the parallel chunks used " \
1566 "during card table scanning") \
1567 \
1568 product(uintx, CMSParPromoteBlocksToClaim, 16, \
1569 "Number of blocks to attempt to claim when refilling CMS LAB's " \
1570 "for parallel GC") \
1571 \
1572 product(uintx, OldPLABWeight, 50, \
1573 "Percentage (0-100) used to weight the current sample when " \
1574 "computing exponentially decaying average for resizing " \
1575 "CMSParPromoteBlocksToClaim") \
1576 \
1577 product(bool, ResizeOldPLAB, true, \
1578 "Dynamically resize (old gen) promotion LAB's") \
1579 \
1580 product(bool, PrintOldPLAB, false, \
1581 "Print (old gen) promotion LAB's sizing decisions") \
1582 \
1583 product(uintx, CMSOldPLABMin, 16, \
1584 "Minimum size of CMS gen promotion LAB caches per worker " \
1585 "per block size") \
1586 \
1587 product(uintx, CMSOldPLABMax, 1024, \
1588 "Maximum size of CMS gen promotion LAB caches per worker " \
1589 "per block size") \
1590 \
1591 product(uintx, CMSOldPLABNumRefills, 4, \
1592 "Nominal number of refills of CMS gen promotion LAB cache " \
1593 "per worker per block size") \
1594 \
1595 product(bool, CMSOldPLABResizeQuicker, false, \
1596 "React on-the-fly during a scavenge to a sudden " \
1597 "change in block demand rate") \
1598 \
1599 product(uintx, CMSOldPLABToleranceFactor, 4, \
1600 "The tolerance of the phase-change detector for on-the-fly " \
1601 "PLAB resizing during a scavenge") \
1602 \
1603 product(uintx, CMSOldPLABReactivityFactor, 2, \
1604 "The gain in the feedback loop for on-the-fly PLAB resizing " \
1605 "during a scavenge") \
1606 \
1607 product(bool, AlwaysPreTouch, false, \
1608 "Force all freshly committed pages to be pre-touched") \
1609 \
1610 product_pd(uintx, CMSYoungGenPerWorker, \
1611 "The maximum size of young gen chosen by default per GC worker " \
1612 "thread available") \
1613 \
1614 product(bool, CMSIncrementalMode, false, \
1615 "Whether CMS GC should operate in \"incremental\" mode") \
1616 \
1617 product(uintx, CMSIncrementalDutyCycle, 10, \
1618 "Percentage (0-100) of CMS incremental mode duty cycle. If " \
1619 "CMSIncrementalPacing is enabled, then this is just the initial " \
1620 "value.") \
1621 \
1622 product(bool, CMSIncrementalPacing, true, \
1623 "Whether the CMS incremental mode duty cycle should be " \
1624 "automatically adjusted") \
1625 \
1626 product(uintx, CMSIncrementalDutyCycleMin, 0, \
1627 "Minimum percentage (0-100) of the CMS incremental duty cycle " \
1628 "used when CMSIncrementalPacing is enabled") \
1629 \
1630 product(uintx, CMSIncrementalSafetyFactor, 10, \
1631 "Percentage (0-100) used to add conservatism when computing the " \
1632 "duty cycle") \
1633 \
1634 product(uintx, CMSIncrementalOffset, 0, \
1635 "Percentage (0-100) by which the CMS incremental mode duty cycle "\
1636 "is shifted to the right within the period between young GCs") \
1637 \
1638 product(uintx, CMSExpAvgFactor, 50, \
1639 "Percentage (0-100) used to weigh the current sample when " \
1640 "computing exponential averages for CMS statistics") \
1641 \
1642 product(uintx, CMS_FLSWeight, 75, \
1643 "Percentage (0-100) used to weigh the current sample when " \
1644 "computing exponentially decaying averages for CMS FLS " \
1645 "statistics") \
1646 \
1647 product(uintx, CMS_FLSPadding, 1, \
1648 "The multiple of deviation from mean to use for buffering " \
1649 "against volatility in free list demand") \
1650 \
1651 product(uintx, FLSCoalescePolicy, 2, \
1652 "CMS: aggressiveness level for coalescing, increasing " \
1653 "from 0 to 4") \
1654 \
1655 product(bool, FLSAlwaysCoalesceLarge, false, \
1656 "CMS: larger free blocks are always available for coalescing") \
1657 \
1658 product(double, FLSLargestBlockCoalesceProximity, 0.99, \
1659 "CMS: the smaller the percentage the greater the coalescing " \
1660 "force") \
1661 \
1662 product(double, CMSSmallCoalSurplusPercent, 1.05, \
1663 "CMS: the factor by which to inflate estimated demand of small " \
1664 "block sizes to prevent coalescing with an adjoining block") \
1665 \
1666 product(double, CMSLargeCoalSurplusPercent, 0.95, \
1667 "CMS: the factor by which to inflate estimated demand of large " \
1668 "block sizes to prevent coalescing with an adjoining block") \
1669 \
1670 product(double, CMSSmallSplitSurplusPercent, 1.10, \
1671 "CMS: the factor by which to inflate estimated demand of small " \
1672 "block sizes to prevent splitting to supply demand for smaller " \
1673 "blocks") \
1674 \
1675 product(double, CMSLargeSplitSurplusPercent, 1.00, \
1676 "CMS: the factor by which to inflate estimated demand of large " \
1677 "block sizes to prevent splitting to supply demand for smaller " \
1678 "blocks") \
1679 \
1680 product(bool, CMSExtrapolateSweep, false, \
1681 "CMS: cushion for block demand during sweep") \
1682 \
1683 product(uintx, CMS_SweepWeight, 75, \
1684 "Percentage (0-100) used to weight the current sample when " \
1685 "computing exponentially decaying average for inter-sweep " \
1686 "duration") \
1687 \
1688 product(uintx, CMS_SweepPadding, 1, \
1689 "The multiple of deviation from mean to use for buffering " \
1690 "against volatility in inter-sweep duration") \
1691 \
1692 product(uintx, CMS_SweepTimerThresholdMillis, 10, \
1693 "Skip block flux-rate sampling for an epoch unless inter-sweep " \
1694 "duration exceeds this threshold in milliseconds") \
1695 \
1696 develop(bool, CMSTraceIncrementalMode, false, \
1697 "Trace CMS incremental mode") \
1698 \
1699 develop(bool, CMSTraceIncrementalPacing, false, \
1700 "Trace CMS incremental mode pacing computation") \
1701 \
1702 develop(bool, CMSTraceThreadState, false, \
1703 "Trace the CMS thread state (enable the trace_state() method)") \
1704 \
1705 product(bool, CMSClassUnloadingEnabled, true, \
1706 "Whether class unloading enabled when using CMS GC") \
1707 \
1708 product(uintx, CMSClassUnloadingMaxInterval, 0, \
1709 "When CMS class unloading is enabled, the maximum CMS cycle " \
1710 "count for which classes may not be unloaded") \
1711 \
1712 product(bool, CMSCompactWhenClearAllSoftRefs, true, \
1713 "Compact when asked to collect CMS gen with " \
1714 "clear_all_soft_refs()") \
1715 \
1716 product(bool, UseCMSCompactAtFullCollection, true, \
1717 "Use Mark-Sweep-Compact algorithm at full collections") \
1718 \
1719 product(uintx, CMSFullGCsBeforeCompaction, 0, \
1720 "Number of CMS full collection done before compaction if > 0") \
1721 \
1722 develop(intx, CMSDictionaryChoice, 0, \
1723 "Use BinaryTreeDictionary as default in the CMS generation") \
1724 \
1725 product(uintx, CMSIndexedFreeListReplenish, 4, \
1726 "Replenish an indexed free list with this number of chunks") \
1727 \
1728 product(bool, CMSReplenishIntermediate, true, \
1729 "Replenish all intermediate free-list caches") \
1730 \
1731 product(bool, CMSSplitIndexedFreeListBlocks, true, \
1732 "When satisfying batched demand, split blocks from the " \
1733 "IndexedFreeList whose size is a multiple of requested size") \
1734 \
1735 product(bool, CMSLoopWarn, false, \
1736 "Warn in case of excessive CMS looping") \
1737 \
1738 develop(bool, CMSOverflowEarlyRestoration, false, \
1739 "Restore preserved marks early") \
1740 \
1741 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \
1742 "Size of marking stack") \
1743 \
1744 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \
1745 "Maximum size of marking stack") \
1746 \
1747 notproduct(bool, CMSMarkStackOverflowALot, false, \
1748 "Simulate frequent marking stack / work queue overflow") \
1749 \
1750 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \
1751 "An \"interval\" counter that determines how frequently " \
1752 "to simulate overflow; a smaller number increases frequency") \
1753 \
1754 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \
1755 "(Temporary, subject to experimentation) " \
1756 "Maximum number of abortable preclean iterations, if > 0") \
1757 \
1758 product(intx, CMSMaxAbortablePrecleanTime, 5000, \
1759 "(Temporary, subject to experimentation) " \
1760 "Maximum time in abortable preclean (in milliseconds)") \
1761 \
1762 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \
1763 "(Temporary, subject to experimentation) " \
1764 "Nominal minimum work per abortable preclean iteration") \
1765 \
1766 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \
1767 "(Temporary, subject to experimentation) " \
1768 "Time that we sleep between iterations when not given " \
1769 "enough work per iteration") \
1770 \
1771 product(uintx, CMSRescanMultiple, 32, \
1772 "Size (in cards) of CMS parallel rescan task") \
1773 \
1774 product(uintx, CMSConcMarkMultiple, 32, \
1775 "Size (in cards) of CMS concurrent MT marking task") \
1776 \
1777 product(bool, CMSAbortSemantics, false, \
1778 "Whether abort-on-overflow semantics is implemented") \
1779 \
1780 product(bool, CMSParallelInitialMarkEnabled, true, \
1781 "Use the parallel initial mark.") \
1782 \
1783 product(bool, CMSParallelRemarkEnabled, true, \
1784 "Whether parallel remark enabled (only if ParNewGC)") \
1785 \
1786 product(bool, CMSParallelSurvivorRemarkEnabled, true, \
1787 "Whether parallel remark of survivor space " \
1788 "enabled (effective only if CMSParallelRemarkEnabled)") \
1789 \
1790 product(bool, CMSPLABRecordAlways, true, \
1791 "Always record survivor space PLAB boundaries (effective only " \
1792 "if CMSParallelSurvivorRemarkEnabled)") \
1793 \
1794 product(bool, CMSEdenChunksRecordAlways, true, \
1795 "Always record eden chunks used for the parallel initial mark " \
1796 "or remark of eden") \
1797 \
1798 product(bool, CMSPrintEdenSurvivorChunks, false, \
1799 "Print the eden and the survivor chunks used for the parallel " \
1800 "initial mark or remark of the eden/survivor spaces") \
1801 \
1802 product(bool, CMSConcurrentMTEnabled, true, \
1803 "Whether multi-threaded concurrent work enabled " \
1804 "(effective only if ParNewGC)") \
1805 \
1806 product(bool, CMSPrecleaningEnabled, true, \
1807 "Whether concurrent precleaning enabled") \
1808 \
1809 product(uintx, CMSPrecleanIter, 3, \
1810 "Maximum number of precleaning iteration passes") \
1811 \
1812 product(uintx, CMSPrecleanNumerator, 2, \
1813 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \
1814 "ratio") \
1815 \
1816 product(uintx, CMSPrecleanDenominator, 3, \
1817 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \
1818 "ratio") \
1819 \
1820 product(bool, CMSPrecleanRefLists1, true, \
1821 "Preclean ref lists during (initial) preclean phase") \
1822 \
1823 product(bool, CMSPrecleanRefLists2, false, \
1824 "Preclean ref lists during abortable preclean phase") \
1825 \
1826 product(bool, CMSPrecleanSurvivors1, false, \
1827 "Preclean survivors during (initial) preclean phase") \
1828 \
1829 product(bool, CMSPrecleanSurvivors2, true, \
1830 "Preclean survivors during abortable preclean phase") \
1831 \
1832 product(uintx, CMSPrecleanThreshold, 1000, \
1833 "Do not iterate again if number of dirty cards is less than this")\
1834 \
1835 product(bool, CMSCleanOnEnter, true, \
1836 "Clean-on-enter optimization for reducing number of dirty cards") \
1837 \
1838 product(uintx, CMSRemarkVerifyVariant, 1, \
1839 "Choose variant (1,2) of verification following remark") \
1840 \
1841 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \
1842 "If Eden size is below this, do not try to schedule remark") \
1843 \
1844 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \
1845 "The Eden occupancy percentage (0-100) at which " \
1846 "to try and schedule remark pause") \
1847 \
1848 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \
1849 "Start sampling eden top at least before young gen " \
1850 "occupancy reaches 1/<ratio> of the size at which " \
1851 "we plan to schedule remark") \
1852 \
1853 product(uintx, CMSSamplingGrain, 16*K, \
1854 "The minimum distance between eden samples for CMS (see above)") \
1855 \
1856 product(bool, CMSScavengeBeforeRemark, false, \
1857 "Attempt scavenge before the CMS remark step") \
1858 \
1859 develop(bool, CMSTraceSweeper, false, \
1860 "Trace some actions of the CMS sweeper") \
1861 \
1862 product(uintx, CMSWorkQueueDrainThreshold, 10, \
1863 "Don't drain below this size per parallel worker/thief") \
1864 \
1865 manageable(intx, CMSWaitDuration, 2000, \
1866 "Time in milliseconds that CMS thread waits for young GC") \
1867 \
1868 develop(uintx, CMSCheckInterval, 1000, \
1869 "Interval in milliseconds that CMS thread checks if it " \
1870 "should start a collection cycle") \
1871 \
1872 product(bool, CMSYield, true, \
1873 "Yield between steps of CMS") \
1874 \
1875 product(uintx, CMSBitMapYieldQuantum, 10*M, \
1876 "Bitmap operations should process at most this many bits " \
1877 "between yields") \
1878 \
1879 product(bool, CMSDumpAtPromotionFailure, false, \
1880 "Dump useful information about the state of the CMS old " \
1881 "generation upon a promotion failure") \
1882 \
1883 product(bool, CMSPrintChunksInDump, false, \
1884 "In a dump enabled by CMSDumpAtPromotionFailure, include " \
1885 "more detailed information about the free chunks") \
1886 \
1887 product(bool, CMSPrintObjectsInDump, false, \
1888 "In a dump enabled by CMSDumpAtPromotionFailure, include " \
1889 "more detailed information about the allocated objects") \
1890 \
1891 diagnostic(bool, FLSVerifyAllHeapReferences, false, \
1892 "Verify that all references across the FLS boundary " \
1893 "are to valid objects") \
1894 \
1895 diagnostic(bool, FLSVerifyLists, false, \
1896 "Do lots of (expensive) FreeListSpace verification") \
1897 \
1898 diagnostic(bool, FLSVerifyIndexTable, false, \
1899 "Do lots of (expensive) FLS index table verification") \
1900 \
1901 develop(bool, FLSVerifyDictionary, false, \
1902 "Do lots of (expensive) FLS dictionary verification") \
1903 \
1904 develop(bool, VerifyBlockOffsetArray, false, \
1905 "Do (expensive) block offset array verification") \
1906 \
1907 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \
1908 "Maintain _unallocated_block in BlockOffsetArray " \
1909 "(currently applicable only to CMS collector)") \
1910 \
1911 develop(bool, TraceCMSState, false, \
1912 "Trace the state of the CMS collection") \
1913 \
1914 product(intx, RefDiscoveryPolicy, 0, \
1915 "Select type of reference discovery policy: " \
1916 "reference-based(0) or referent-based(1)") \
1917 \
1918 product(bool, ParallelRefProcEnabled, false, \
1919 "Enable parallel reference processing whenever possible") \
1920 \
1921 product(bool, ParallelRefProcBalancingEnabled, true, \
1922 "Enable balancing of reference processing queues") \
1923 \
1924 product(uintx, CMSTriggerRatio, 80, \
1925 "Percentage of MinHeapFreeRatio in CMS generation that is " \
1926 "allocated before a CMS collection cycle commences") \
1927 \
1928 product(uintx, CMSBootstrapOccupancy, 50, \
1929 "Percentage CMS generation occupancy at which to " \
1930 "initiate CMS collection for bootstrapping collection stats") \
1931 \
1932 product(intx, CMSInitiatingOccupancyFraction, -1, \
1933 "Percentage CMS generation occupancy to start a CMS collection " \
1934 "cycle. A negative value means that CMSTriggerRatio is used") \
1935 \
1936 product(uintx, InitiatingHeapOccupancyPercent, 45, \
1937 "Percentage of the (entire) heap occupancy to start a " \
1938 "concurrent GC cycle. It is used by GCs that trigger a " \
1939 "concurrent GC cycle based on the occupancy of the entire heap, " \
1940 "not just one of the generations (e.g., G1). A value of 0 " \
1941 "denotes 'do constant GC cycles'.") \
1942 \
1943 manageable(intx, CMSTriggerInterval, -1, \
1944 "Commence a CMS collection cycle (at least) every so many " \
1945 "milliseconds (0 permanently, -1 disabled)") \
1946 \
1947 product(bool, UseCMSInitiatingOccupancyOnly, false, \
1948 "Only use occupancy as a criterion for starting a CMS collection")\
1949 \
1950 product(uintx, CMSIsTooFullPercentage, 98, \
1951 "An absolute ceiling above which CMS will always consider the " \
1952 "unloading of classes when class unloading is enabled") \
1953 \
1954 develop(bool, CMSTestInFreeList, false, \
1955 "Check if the coalesced range is already in the " \
1956 "free lists as claimed") \
1957 \
1958 notproduct(bool, CMSVerifyReturnedBytes, false, \
1959 "Check that all the garbage collected was returned to the " \
1960 "free lists") \
1961 \
1962 notproduct(bool, ScavengeALot, false, \
1963 "Force scavenge at every Nth exit from the runtime system " \
1964 "(N=ScavengeALotInterval)") \
1965 \
1966 develop(bool, FullGCALot, false, \
1967 "Force full gc at every Nth exit from the runtime system " \
1968 "(N=FullGCALotInterval)") \
1969 \
1970 notproduct(bool, GCALotAtAllSafepoints, false, \
1971 "Enforce ScavengeALot/GCALot at all potential safepoints") \
1972 \
1973 product(bool, PrintPromotionFailure, false, \
1974 "Print additional diagnostic information following " \
1975 "promotion failure") \
1976 \
1977 notproduct(bool, PromotionFailureALot, false, \
1978 "Use promotion failure handling on every youngest generation " \
1979 "collection") \
1980 \
1981 develop(uintx, PromotionFailureALotCount, 1000, \
1982 "Number of promotion failures occurring at ParGCAllocBuffer " \
1983 "refill attempts (ParNew) or promotion attempts " \
1984 "(other young collectors)") \
1985 \
1986 develop(uintx, PromotionFailureALotInterval, 5, \
1987 "Total collections between promotion failures alot") \
1988 \
1989 experimental(uintx, WorkStealingSleepMillis, 1, \
1990 "Sleep time when sleep is used for yields") \
1991 \
1992 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \
1993 "Number of yields before a sleep is done during workstealing") \
1994 \
1995 experimental(uintx, WorkStealingHardSpins, 4096, \
1996 "Number of iterations in a spin loop between checks on " \
1997 "time out of hard spin") \
1998 \
1999 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \
2000 "Ratio of hard spins to calls to yield") \
2001 \
2002 develop(uintx, ObjArrayMarkingStride, 512, \
2003 "Number of object array elements to push onto the marking stack " \
2004 "before pushing a continuation entry") \
2005 \
2006 develop(bool, MetadataAllocationFailALot, false, \
2007 "Fail metadata allocations at intervals controlled by " \
2008 "MetadataAllocationFailALotInterval") \
2009 \
2010 develop(uintx, MetadataAllocationFailALotInterval, 1000, \
2011 "Metadata allocation failure a lot interval") \
2012 \
2013 develop(bool, TraceMetadataChunkAllocation, false, \
2014 "Trace chunk metadata allocations") \
2015 \
2016 product(bool, TraceMetadataHumongousAllocation, false, \
2017 "Trace humongous metadata allocations") \
2018 \
2019 develop(bool, TraceMetavirtualspaceAllocation, false, \
2020 "Trace virtual space metadata allocations") \
2021 \
2022 notproduct(bool, ExecuteInternalVMTests, false, \
2023 "Enable execution of internal VM tests") \
2024 \
2025 notproduct(bool, VerboseInternalVMTests, false, \
2026 "Turn on logging for internal VM tests.") \
2027 \
2028 product_pd(bool, UseTLAB, "Use thread-local object allocation") \
2029 \
2030 product_pd(bool, ResizeTLAB, \
2031 "Dynamically resize TLAB size for threads") \
2032 \
2033 product(bool, ZeroTLAB, false, \
2034 "Zero out the newly created TLAB") \
2035 \
2036 product(bool, FastTLABRefill, true, \
2037 "Use fast TLAB refill code") \
2038 \
2039 product(bool, PrintTLAB, false, \
2040 "Print various TLAB related information") \
2041 \
2042 product(bool, TLABStats, true, \
2043 "Provide more detailed and expensive TLAB statistics " \
2044 "(with PrintTLAB)") \
2045 \
2046 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \
2047 "Enable LowMemoryProtection")) \
2048 \
2049 product_pd(bool, NeverActAsServerClassMachine, \
2050 "Never act like a server-class machine") \
2051 \
2052 product(bool, AlwaysActAsServerClassMachine, false, \
2053 "Always act like a server-class machine") \
2054 \
2055 product_pd(uint64_t, MaxRAM, \
2056 "Real memory size (in bytes) used to set maximum heap size") \
2057 \
2058 product(uintx, ErgoHeapSizeLimit, 0, \
2059 "Maximum ergonomically set heap size (in bytes); zero means use " \
2060 "MaxRAM / MaxRAMFraction") \
2061 \
2062 product(uintx, MaxRAMFraction, 4, \
2063 "Maximum fraction (1/n) of real memory used for maximum heap " \
2064 "size") \
2065 \
2066 product(uintx, DefaultMaxRAMFraction, 4, \
2067 "Maximum fraction (1/n) of real memory used for maximum heap " \
2068 "size; deprecated: to be renamed to MaxRAMFraction") \
2069 \
2070 product(uintx, MinRAMFraction, 2, \
2071 "Minimum fraction (1/n) of real memory used for maxmimum heap " \
2072 "size on systems with small physical memory size") \
2073 \
2074 product(uintx, InitialRAMFraction, 64, \
2075 "Fraction (1/n) of real memory used for initial heap size") \
2076 \
2077 develop(uintx, MaxVirtMemFraction, 2, \
2078 "Maximum fraction (1/n) of virtual memory used for ergonomically "\
2079 "determining maximum heap size") \
2080 \
2081 product(bool, UseAutoGCSelectPolicy, false, \
2082 "Use automatic collection selection policy") \
2083 \
2084 product(uintx, AutoGCSelectPauseMillis, 5000, \
2085 "Automatic GC selection pause threshold in milliseconds") \
2086 \
2087 product(bool, UseAdaptiveSizePolicy, true, \
2088 "Use adaptive generation sizing policies") \
2089 \
2090 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \
2091 "Use adaptive survivor sizing policies") \
2092 \
2093 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \
2094 "Use adaptive young-old sizing policies at minor collections") \
2095 \
2096 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \
2097 "Use adaptive young-old sizing policies at major collections") \
2098 \
2099 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \
2100 "Include statistics from System.gc() for adaptive size policy") \
2101 \
2102 product(bool, UseAdaptiveGCBoundary, false, \
2103 "Allow young-old boundary to move") \
2104 \
2105 develop(bool, TraceAdaptiveGCBoundary, false, \
2106 "Trace young-old boundary moves") \
2107 \
2108 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \
2109 "Resize the virtual spaces of the young or old generations") \
2110 \
2111 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \
2112 "Policy for changing generation size for throughput goals") \
2113 \
2114 product(uintx, AdaptiveSizePausePolicy, 0, \
2115 "Policy for changing generation size for pause goals") \
2116 \
2117 develop(bool, PSAdjustTenuredGenForMinorPause, false, \
2118 "Adjust tenured generation to achieve a minor pause goal") \
2119 \
2120 develop(bool, PSAdjustYoungGenForMajorPause, false, \
2121 "Adjust young generation to achieve a major pause goal") \
2122 \
2123 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \
2124 "Number of steps where heuristics is used before data is used") \
2125 \
2126 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \
2127 "Number of collections before the adaptive sizing is started") \
2128 \
2129 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \
2130 "Collection interval for printing information; zero means never") \
2131 \
2132 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \
2133 "Use adaptive minimum footprint as a goal") \
2134 \
2135 product(uintx, AdaptiveSizePolicyWeight, 10, \
2136 "Weight given to exponential resizing, between 0 and 100") \
2137 \
2138 product(uintx, AdaptiveTimeWeight, 25, \
2139 "Weight given to time in adaptive policy, between 0 and 100") \
2140 \
2141 product(uintx, PausePadding, 1, \
2142 "How much buffer to keep for pause time") \
2143 \
2144 product(uintx, PromotedPadding, 3, \
2145 "How much buffer to keep for promotion failure") \
2146 \
2147 product(uintx, SurvivorPadding, 3, \
2148 "How much buffer to keep for survivor overflow") \
2149 \
2150 product(uintx, ThresholdTolerance, 10, \
2151 "Allowed collection cost difference between generations") \
2152 \
2153 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \
2154 "If collection costs are within margin, reduce both by full " \
2155 "delta") \
2156 \
2157 product(uintx, YoungGenerationSizeIncrement, 20, \
2158 "Adaptive size percentage change in young generation") \
2159 \
2160 product(uintx, YoungGenerationSizeSupplement, 80, \
2161 "Supplement to YoungedGenerationSizeIncrement used at startup") \
2162 \
2163 product(uintx, YoungGenerationSizeSupplementDecay, 8, \
2164 "Decay factor to YoungedGenerationSizeSupplement") \
2165 \
2166 product(uintx, TenuredGenerationSizeIncrement, 20, \
2167 "Adaptive size percentage change in tenured generation") \
2168 \
2169 product(uintx, TenuredGenerationSizeSupplement, 80, \
2170 "Supplement to TenuredGenerationSizeIncrement used at startup") \
2171 \
2172 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \
2173 "Decay factor to TenuredGenerationSizeIncrement") \
2174 \
2175 product(uintx, MaxGCPauseMillis, max_uintx, \
2176 "Adaptive size policy maximum GC pause time goal in millisecond, "\
2177 "or (G1 Only) the maximum GC time per MMU time slice") \
2178 \
2179 product(uintx, GCPauseIntervalMillis, 0, \
2180 "Time slice for MMU specification") \
2181 \
2182 product(uintx, MaxGCMinorPauseMillis, max_uintx, \
2183 "Adaptive size policy maximum GC minor pause time goal " \
2184 "in millisecond") \
2185 \
2186 product(uintx, GCTimeRatio, 99, \
2187 "Adaptive size policy application time to GC time ratio") \
2188 \
2189 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \
2190 "Adaptive size scale down factor for shrinking") \
2191 \
2192 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \
2193 "Adaptive size decays the major cost for long major intervals") \
2194 \
2195 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \
2196 "Time scale over which major costs decay") \
2197 \
2198 product(uintx, MinSurvivorRatio, 3, \
2199 "Minimum ratio of young generation/survivor space size") \
2200 \
2201 product(uintx, InitialSurvivorRatio, 8, \
2202 "Initial ratio of young generation/survivor space size") \
2203 \
2204 product(uintx, BaseFootPrintEstimate, 256*M, \
2205 "Estimate of footprint other than Java Heap") \
2206 \
2207 product(bool, UseGCOverheadLimit, true, \
2208 "Use policy to limit of proportion of time spent in GC " \
2209 "before an OutOfMemory error is thrown") \
2210 \
2211 product(uintx, GCTimeLimit, 98, \
2212 "Limit of the proportion of time spent in GC before " \
2213 "an OutOfMemoryError is thrown (used with GCHeapFreeLimit)") \
2214 \
2215 product(uintx, GCHeapFreeLimit, 2, \
2216 "Minimum percentage of free space after a full GC before an " \
2217 "OutOfMemoryError is thrown (used with GCTimeLimit)") \
2218 \
2219 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \
2220 "Number of consecutive collections before gc time limit fires") \
2221 \
2222 product(bool, PrintAdaptiveSizePolicy, false, \
2223 "Print information about AdaptiveSizePolicy") \
2224 \
2225 product(intx, PrefetchCopyIntervalInBytes, -1, \
2226 "How far ahead to prefetch destination area (<= 0 means off)") \
2227 \
2228 product(intx, PrefetchScanIntervalInBytes, -1, \
2229 "How far ahead to prefetch scan area (<= 0 means off)") \
2230 \
2231 product(intx, PrefetchFieldsAhead, -1, \
2232 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \
2233 \
2234 diagnostic(bool, VerifySilently, false, \
2235 "Do not print the verification progress") \
2236 \
2237 diagnostic(bool, VerifyDuringStartup, false, \
2238 "Verify memory system before executing any Java code " \
2239 "during VM initialization") \
2240 \
2241 diagnostic(bool, VerifyBeforeExit, trueInDebug, \
2242 "Verify system before exiting") \
2243 \
2244 diagnostic(bool, VerifyBeforeGC, false, \
2245 "Verify memory system before GC") \
2246 \
2247 diagnostic(bool, VerifyAfterGC, false, \
2248 "Verify memory system after GC") \
2249 \
2250 diagnostic(bool, VerifyDuringGC, false, \
2251 "Verify memory system during GC (between phases)") \
2252 \
2253 diagnostic(bool, GCParallelVerificationEnabled, true, \
2254 "Enable parallel memory system verification") \
2255 \
2256 diagnostic(bool, DeferInitialCardMark, false, \
2257 "When +ReduceInitialCardMarks, explicitly defer any that " \
2258 "may arise from new_pre_store_barrier") \
2259 \
2260 diagnostic(bool, VerifyRememberedSets, false, \
2261 "Verify GC remembered sets") \
2262 \
2263 diagnostic(bool, VerifyObjectStartArray, true, \
2264 "Verify GC object start array if verify before/after") \
2265 \
2266 product(bool, DisableExplicitGC, false, \
2267 "Ignore calls to System.gc()") \
2268 \
2269 notproduct(bool, CheckMemoryInitialization, false, \
2270 "Check memory initialization") \
2271 \
2272 product(bool, CollectGen0First, false, \
2273 "Collect youngest generation before each full GC") \
2274 \
2275 diagnostic(bool, BindCMSThreadToCPU, false, \
2276 "Bind CMS Thread to CPU if possible") \
2277 \
2278 diagnostic(uintx, CPUForCMSThread, 0, \
2279 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \
2280 \
2281 product(bool, BindGCTaskThreadsToCPUs, false, \
2282 "Bind GCTaskThreads to CPUs if possible") \
2283 \
2284 product(bool, UseGCTaskAffinity, false, \
2285 "Use worker affinity when asking for GCTasks") \
2286 \
2287 product(uintx, ProcessDistributionStride, 4, \
2288 "Stride through processors when distributing processes") \
2289 \
2290 product(uintx, CMSCoordinatorYieldSleepCount, 10, \
2291 "Number of times the coordinator GC thread will sleep while " \
2292 "yielding before giving up and resuming GC") \
2293 \
2294 product(uintx, CMSYieldSleepCount, 0, \
2295 "Number of times a GC thread (minus the coordinator) " \
2296 "will sleep while yielding before giving up and resuming GC") \
2297 \
2298 /* gc tracing */ \
2299 manageable(bool, PrintGC, false, \
2300 "Print message at garbage collection") \
2301 \
2302 manageable(bool, PrintGCDetails, false, \
2303 "Print more details at garbage collection") \
2304 \
2305 manageable(bool, PrintGCDateStamps, false, \
2306 "Print date stamps at garbage collection") \
2307 \
2308 manageable(bool, PrintGCTimeStamps, false, \
2309 "Print timestamps at garbage collection") \
2310 \
2311 manageable(bool, PrintGCID, false, \
2312 "Print an identifier for each garbage collection") \
2313 \
2314 product(bool, PrintGCTaskTimeStamps, false, \
2315 "Print timestamps for individual gc worker thread tasks") \
2316 \
2317 develop(intx, ConcGCYieldTimeout, 0, \
2318 "If non-zero, assert that GC threads yield within this " \
2319 "number of milliseconds") \
2320 \
2321 notproduct(bool, TraceMarkSweep, false, \
2322 "Trace mark sweep") \
2323 \
2324 product(bool, PrintReferenceGC, false, \
2325 "Print times spent handling reference objects during GC " \
2326 "(enabled only when PrintGCDetails)") \
2327 \
2328 develop(bool, TraceReferenceGC, false, \
2329 "Trace handling of soft/weak/final/phantom references") \
2330 \
2331 develop(bool, TraceFinalizerRegistration, false, \
2332 "Trace registration of final references") \
2333 \
2334 notproduct(bool, TraceScavenge, false, \
2335 "Trace scavenge") \
2336 \
2337 product_rw(bool, TraceClassLoading, false, \
2338 "Trace all classes loaded") \
2339 \
2340 product(bool, TraceClassLoadingPreorder, false, \
2341 "Trace all classes loaded in order referenced (not loaded)") \
2342 \
2343 product_rw(bool, TraceClassUnloading, false, \
2344 "Trace unloading of classes") \
2345 \
2346 product_rw(bool, TraceLoaderConstraints, false, \
2347 "Trace loader constraints") \
2348 \
2349 develop(bool, TraceClassLoaderData, false, \
2350 "Trace class loader loader_data lifetime") \
2351 \
2352 product(uintx, InitialBootClassLoaderMetaspaceSize, \
2353 NOT_LP64(2200*K) LP64_ONLY(4*M), \
2354 "Initial size of the boot class loader data metaspace") \
2355 \
2356 product(bool, TraceGen0Time, false, \
2357 "Trace accumulated time for Gen 0 collection") \
2358 \
2359 product(bool, TraceGen1Time, false, \
2360 "Trace accumulated time for Gen 1 collection") \
2361 \
2362 product(bool, PrintTenuringDistribution, false, \
2363 "Print tenuring age information") \
2364 \
2365 product_rw(bool, PrintHeapAtGC, false, \
2366 "Print heap layout before and after each GC") \
2367 \
2368 product_rw(bool, PrintHeapAtGCExtended, false, \
2369 "Print extended information about the layout of the heap " \
2370 "when -XX:+PrintHeapAtGC is set") \
2371 \
2372 product(bool, PrintHeapAtSIGBREAK, true, \
2373 "Print heap layout in response to SIGBREAK") \
2374 \
2375 manageable(bool, PrintClassHistogramBeforeFullGC, false, \
2376 "Print a class histogram before any major stop-world GC") \
2377 \
2378 manageable(bool, PrintClassHistogramAfterFullGC, false, \
2379 "Print a class histogram after any major stop-world GC") \
2380 \
2381 manageable(bool, PrintClassHistogram, false, \
2382 "Print a histogram of class instances") \
2383 \
2384 develop(bool, TraceWorkGang, false, \
2385 "Trace activities of work gangs") \
2386 \
2387 product(bool, TraceParallelOldGCTasks, false, \
2388 "Trace multithreaded GC activity") \
2389 \
2390 develop(bool, TraceBlockOffsetTable, false, \
2391 "Print BlockOffsetTable maps") \
2392 \
2393 develop(bool, TraceCardTableModRefBS, false, \
2394 "Print CardTableModRefBS maps") \
2395 \
2396 develop(bool, TraceGCTaskManager, false, \
2397 "Trace actions of the GC task manager") \
2398 \
2399 develop(bool, TraceGCTaskQueue, false, \
2400 "Trace actions of the GC task queues") \
2401 \
2402 diagnostic(bool, TraceGCTaskThread, false, \
2403 "Trace actions of the GC task threads") \
2404 \
2405 product(bool, PrintParallelOldGCPhaseTimes, false, \
2406 "Print the time taken by each phase in ParallelOldGC " \
2407 "(PrintGCDetails must also be enabled)") \
2408 \
2409 develop(bool, TraceParallelOldGCMarkingPhase, false, \
2410 "Trace marking phase in ParallelOldGC") \
2411 \
2412 develop(bool, TraceParallelOldGCSummaryPhase, false, \
2413 "Trace summary phase in ParallelOldGC") \
2414 \
2415 develop(bool, TraceParallelOldGCCompactionPhase, false, \
2416 "Trace compaction phase in ParallelOldGC") \
2417 \
2418 develop(bool, TraceParallelOldGCDensePrefix, false, \
2419 "Trace dense prefix computation for ParallelOldGC") \
2420 \
2421 develop(bool, IgnoreLibthreadGPFault, false, \
2422 "Suppress workaround for libthread GP fault") \
2423 \
2424 product(bool, PrintJNIGCStalls, false, \
2425 "Print diagnostic message when GC is stalled " \
2426 "by JNI critical section") \
2427 \
2428 experimental(double, ObjectCountCutOffPercent, 0.5, \
2429 "The percentage of the used heap that the instances of a class " \
2430 "must occupy for the class to generate a trace event") \
2431 \
2432 /* GC log rotation setting */ \
2433 \
2434 product(bool, UseGCLogFileRotation, false, \
2435 "Rotate gclog files (for long running applications). It requires "\
2436 "-Xloggc:<filename>") \
2437 \
2438 product(uintx, NumberOfGCLogFiles, 0, \
2439 "Number of gclog files in rotation " \
2440 "(default: 0, no rotation)") \
2441 \
2442 product(uintx, GCLogFileSize, 8*K, \
2443 "GC log file size, requires UseGCLogFileRotation. " \
2444 "Set to 0 to only trigger rotation via jcmd") \
2445 \
2446 /* JVMTI heap profiling */ \
2447 \
2448 diagnostic(bool, TraceJVMTIObjectTagging, false, \
2449 "Trace JVMTI object tagging calls") \
2450 \
2451 diagnostic(bool, VerifyBeforeIteration, false, \
2452 "Verify memory system before JVMTI iteration") \
2453 \
2454 /* compiler interface */ \
2455 \
2456 develop(bool, CIPrintCompilerName, false, \
2457 "when CIPrint is active, print the name of the active compiler") \
2458 \
2459 develop(bool, CIPrintCompileQueue, false, \
2460 "display the contents of the compile queue whenever a " \
2461 "compilation is enqueued") \
2462 \
2463 develop(bool, CIPrintRequests, false, \
2464 "display every request for compilation") \
2465 \
2466 product(bool, CITime, false, \
2467 "collect timing information for compilation") \
2468 \
2469 develop(bool, CITimeEach, false, \
2470 "display timing information after each successful compilation") \
2471 \
2472 develop(bool, CICountOSR, false, \
2473 "use a separate counter when assigning ids to osr compilations") \
2474 \
2475 develop(bool, CICompileNatives, true, \
2476 "compile native methods if supported by the compiler") \
2477 \
2478 develop_pd(bool, CICompileOSR, \
2479 "compile on stack replacement methods if supported by the " \
2480 "compiler") \
2481 \
2482 develop(bool, CIPrintMethodCodes, false, \
2483 "print method bytecodes of the compiled code") \
2484 \
2485 develop(bool, CIPrintTypeFlow, false, \
2486 "print the results of ciTypeFlow analysis") \
2487 \
2488 develop(bool, CITraceTypeFlow, false, \
2489 "detailed per-bytecode tracing of ciTypeFlow analysis") \
2490 \
2491 develop(intx, OSROnlyBCI, -1, \
2492 "OSR only at this bci. Negative values mean exclude that bci") \
2493 \
2494 /* compiler */ \
2495 \
2496 product(intx, CICompilerCount, CI_COMPILER_COUNT, \
2497 "Number of compiler threads to run") \
2498 \
2499 product(intx, CompilationPolicyChoice, 0, \
2500 "which compilation policy (0/1)") \
2501 \
2502 develop(bool, UseStackBanging, true, \
2503 "use stack banging for stack overflow checks (required for " \
2504 "proper StackOverflow handling; disable only to measure cost " \
2505 "of stackbanging)") \
2506 \
2507 develop(bool, UseStrictFP, true, \
2508 "use strict fp if modifier strictfp is set") \
2509 \
2510 develop(bool, GenerateSynchronizationCode, true, \
2511 "generate locking/unlocking code for synchronized methods and " \
2512 "monitors") \
2513 \
2514 develop(bool, GenerateCompilerNullChecks, true, \
2515 "Generate explicit null checks for loads/stores/calls") \
2516 \
2517 develop(bool, GenerateRangeChecks, true, \
2518 "Generate range checks for array accesses") \
2519 \
2520 develop_pd(bool, ImplicitNullChecks, \
2521 "Generate code for implicit null checks") \
2522 \
2523 product_pd(bool, TrapBasedNullChecks, \
2524 "Generate code for null checks that uses a cmp and trap " \
2525 "instruction raising SIGTRAP. This is only used if an access to" \
2526 "null (+offset) will not raise a SIGSEGV, i.e.," \
2527 "ImplicitNullChecks don't work (PPC64).") \
2528 \
2529 product(bool, PrintSafepointStatistics, false, \
2530 "Print statistics about safepoint synchronization") \
2531 \
2532 product(intx, PrintSafepointStatisticsCount, 300, \
2533 "Total number of safepoint statistics collected " \
2534 "before printing them out") \
2535 \
2536 product(intx, PrintSafepointStatisticsTimeout, -1, \
2537 "Print safepoint statistics only when safepoint takes " \
2538 "more than PrintSafepointSatisticsTimeout in millis") \
2539 \
2540 product(bool, TraceSafepointCleanupTime, false, \
2541 "Print the break down of clean up tasks performed during " \
2542 "safepoint") \
2543 \
2544 product(bool, Inline, true, \
2545 "Enable inlining") \
2546 \
2547 product(bool, ClipInlining, true, \
2548 "Clip inlining if aggregate method exceeds DesiredMethodLimit") \
2549 \
2550 develop(bool, UseCHA, true, \
2551 "Enable CHA") \
2552 \
2553 product(bool, UseTypeProfile, true, \
2554 "Check interpreter profile for historically monomorphic calls") \
2555 \
2556 notproduct(bool, TimeCompiler, false, \
2557 "Time the compiler") \
2558 \
2559 diagnostic(bool, PrintInlining, false, \
2560 "Print inlining optimizations") \
2561 \
2562 product(bool, UsePopCountInstruction, false, \
2563 "Use population count instruction") \
2564 \
2565 develop(bool, EagerInitialization, false, \
2566 "Eagerly initialize classes if possible") \
2567 \
2568 develop(bool, TraceMethodReplacement, false, \
2569 "Print when methods are replaced do to recompilation") \
2570 \
2571 develop(bool, PrintMethodFlushing, false, \
2572 "Print the nmethods being flushed") \
2573 \
2574 diagnostic(bool, PrintMethodFlushingStatistics, false, \
2575 "print statistics about method flushing") \
2576 \
2577 develop(bool, UseRelocIndex, false, \
2578 "Use an index to speed random access to relocations") \
2579 \
2580 develop(bool, StressCodeBuffers, false, \
2581 "Exercise code buffer expansion and other rare state changes") \
2582 \
2583 diagnostic(bool, DebugNonSafepoints, trueInDebug, \
2584 "Generate extra debugging information for non-safepoints in " \
2585 "nmethods") \
2586 \
2587 product(bool, PrintVMOptions, false, \
2588 "Print flags that appeared on the command line") \
2589 \
2590 product(bool, IgnoreUnrecognizedVMOptions, false, \
2591 "Ignore unrecognized VM options") \
2592 \
2593 product(bool, PrintCommandLineFlags, false, \
2594 "Print flags specified on command line or set by ergonomics") \
2595 \
2596 product(bool, PrintFlagsInitial, false, \
2597 "Print all VM flags before argument processing and exit VM") \
2598 \
2599 product(bool, PrintFlagsFinal, false, \
2600 "Print all VM flags after argument and ergonomic processing") \
2601 \
2602 notproduct(bool, PrintFlagsWithComments, false, \
2603 "Print all VM flags with default values and descriptions and " \
2604 "exit") \
2605 \
2606 diagnostic(bool, SerializeVMOutput, true, \
2607 "Use a mutex to serialize output to tty and LogFile") \
2608 \
2609 diagnostic(bool, DisplayVMOutput, true, \
2610 "Display all VM output on the tty, independently of LogVMOutput") \
2611 \
2612 diagnostic(bool, LogVMOutput, false, \
2613 "Save VM output to LogFile") \
2614 \
2615 diagnostic(ccstr, LogFile, NULL, \
2616 "If LogVMOutput or LogCompilation is on, save VM output to " \
2617 "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)")\
2618 \
2619 product(ccstr, ErrorFile, NULL, \
2620 "If an error occurs, save the error data to this file " \
2621 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \
2622 \
2623 product(bool, DisplayVMOutputToStderr, false, \
2624 "If DisplayVMOutput is true, display all VM output to stderr") \
2625 \
2626 product(bool, DisplayVMOutputToStdout, false, \
2627 "If DisplayVMOutput is true, display all VM output to stdout") \
2628 \
2629 product(bool, UseHeavyMonitors, false, \
2630 "use heavyweight instead of lightweight Java monitors") \
2631 \
2632 product(bool, PrintStringTableStatistics, false, \
2633 "print statistics about the StringTable and SymbolTable") \
2634 \
2635 diagnostic(bool, VerifyStringTableAtExit, false, \
2636 "verify StringTable contents at exit") \
2637 \
2638 notproduct(bool, PrintSymbolTableSizeHistogram, false, \
2639 "print histogram of the symbol table") \
2640 \
2641 notproduct(bool, ExitVMOnVerifyError, false, \
2642 "standard exit from VM if bytecode verify error " \
2643 "(only in debug mode)") \
2644 \
2645 notproduct(ccstr, AbortVMOnException, NULL, \
2646 "Call fatal if this exception is thrown. Example: " \
2647 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \
2648 \
2649 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \
2650 "Call fatal if the exception pointed by AbortVMOnException " \
2651 "has this message") \
2652 \
2653 develop(bool, DebugVtables, false, \
2654 "add debugging code to vtable dispatch") \
2655 \
2656 develop(bool, PrintVtables, false, \
2657 "print vtables when printing klass") \
2658 \
2659 notproduct(bool, PrintVtableStats, false, \
2660 "print vtables stats at end of run") \
2661 \
2662 develop(bool, TraceCreateZombies, false, \
2663 "trace creation of zombie nmethods") \
2664 \
2665 notproduct(bool, IgnoreLockingAssertions, false, \
2666 "disable locking assertions (for speed)") \
2667 \
2668 product(bool, RangeCheckElimination, true, \
2669 "Eliminate range checks") \
2670 \
2671 develop_pd(bool, UncommonNullCast, \
2672 "track occurrences of null in casts; adjust compiler tactics") \
2673 \
2674 develop(bool, TypeProfileCasts, true, \
2675 "treat casts like calls for purposes of type profiling") \
2676 \
2677 develop(bool, DelayCompilationDuringStartup, true, \
2678 "Delay invoking the compiler until main application class is " \
2679 "loaded") \
2680 \
2681 develop(bool, CompileTheWorld, false, \
2682 "Compile all methods in all classes in bootstrap class path " \
2683 "(stress test)") \
2684 \
2685 develop(bool, CompileTheWorldPreloadClasses, true, \
2686 "Preload all classes used by a class before start loading") \
2687 \
2688 notproduct(intx, CompileTheWorldSafepointInterval, 100, \
2689 "Force a safepoint every n compiles so sweeper can keep up") \
2690 \
2691 develop(bool, FillDelaySlots, true, \
2692 "Fill delay slots (on SPARC only)") \
2693 \
2694 develop(bool, TimeLivenessAnalysis, false, \
2695 "Time computation of bytecode liveness analysis") \
2696 \
2697 develop(bool, TraceLivenessGen, false, \
2698 "Trace the generation of liveness analysis information") \
2699 \
2700 notproduct(bool, TraceLivenessQuery, false, \
2701 "Trace queries of liveness analysis information") \
2702 \
2703 notproduct(bool, CollectIndexSetStatistics, false, \
2704 "Collect information about IndexSets") \
2705 \
2706 develop(bool, UseLoopSafepoints, true, \
2707 "Generate Safepoint nodes in every loop") \
2708 \
2709 develop(intx, FastAllocateSizeLimit, 128*K, \
2710 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \
2711 "Inline allocations larger than this in doublewords must go slow")\
2712 \
2713 product(bool, AggressiveOpts, false, \
2714 "Enable aggressive optimizations - see arguments.cpp") \
2715 \
2716 product_pd(uintx, TypeProfileLevel, \
2717 "=XYZ, with Z: Type profiling of arguments at call; " \
2718 "Y: Type profiling of return value at call; " \
2719 "X: Type profiling of parameters to methods; " \
2720 "X, Y and Z in 0=off ; 1=jsr292 only; 2=all methods") \
2721 \
2722 product(intx, TypeProfileArgsLimit, 2, \
2723 "max number of call arguments to consider for type profiling") \
2724 \
2725 product(intx, TypeProfileParmsLimit, 2, \
2726 "max number of incoming parameters to consider for type profiling"\
2727 ", -1 for all") \
2728 \
2729 /* statistics */ \
2730 develop(bool, CountCompiledCalls, false, \
2731 "Count method invocations") \
2732 \
2733 notproduct(bool, CountRuntimeCalls, false, \
2734 "Count VM runtime calls") \
2735 \
2736 develop(bool, CountJNICalls, false, \
2737 "Count jni method invocations") \
2738 \
2739 notproduct(bool, CountJVMCalls, false, \
2740 "Count jvm method invocations") \
2741 \
2742 notproduct(bool, CountRemovableExceptions, false, \
2743 "Count exceptions that could be replaced by branches due to " \
2744 "inlining") \
2745 \
2746 notproduct(bool, ICMissHistogram, false, \
2747 "Produce histogram of IC misses") \
2748 \
2749 notproduct(bool, PrintClassStatistics, false, \
2750 "Print class statistics at end of run") \
2751 \
2752 notproduct(bool, PrintMethodStatistics, false, \
2753 "Print method statistics at end of run") \
2754 \
2755 /* interpreter */ \
2756 develop(bool, ClearInterpreterLocals, false, \
2757 "Always clear local variables of interpreter activations upon " \
2758 "entry") \
2759 \
2760 product_pd(bool, RewriteBytecodes, \
2761 "Allow rewriting of bytecodes (bytecodes are not immutable)") \
2762 \
2763 product_pd(bool, RewriteFrequentPairs, \
2764 "Rewrite frequently used bytecode pairs into a single bytecode") \
2765 \
2766 diagnostic(bool, PrintInterpreter, false, \
2767 "Print the generated interpreter code") \
2768 \
2769 product(bool, UseInterpreter, true, \
2770 "Use interpreter for non-compiled methods") \
2771 \
2772 develop(bool, UseFastSignatureHandlers, true, \
2773 "Use fast signature handlers for native calls") \
2774 \
2775 product(bool, UseLoopCounter, true, \
2776 "Increment invocation counter on backward branch") \
2777 \
2778 product(bool, UseFastEmptyMethods, true, \
2779 "Use fast method entry code for empty methods") \
2780 \
2781 product(bool, UseFastAccessorMethods, true, \
2782 "Use fast method entry code for accessor methods") \
2783 \
2784 product_pd(bool, UseOnStackReplacement, \
2785 "Use on stack replacement, calls runtime if invoc. counter " \
2786 "overflows in loop") \
2787 \
2788 notproduct(bool, TraceOnStackReplacement, false, \
2789 "Trace on stack replacement") \
2790 \
2791 product_pd(bool, PreferInterpreterNativeStubs, \
2792 "Use always interpreter stubs for native methods invoked via " \
2793 "interpreter") \
2794 \
2795 develop(bool, CountBytecodes, false, \
2796 "Count number of bytecodes executed") \
2797 \
2798 develop(bool, PrintBytecodeHistogram, false, \
2799 "Print histogram of the executed bytecodes") \
2800 \
2801 develop(bool, PrintBytecodePairHistogram, false, \
2802 "Print histogram of the executed bytecode pairs") \
2803 \
2804 diagnostic(bool, PrintSignatureHandlers, false, \
2805 "Print code generated for native method signature handlers") \
2806 \
2807 develop(bool, VerifyOops, false, \
2808 "Do plausibility checks for oops") \
2809 \
2810 develop(bool, CheckUnhandledOops, false, \
2811 "Check for unhandled oops in VM code") \
2812 \
2813 develop(bool, VerifyJNIFields, trueInDebug, \
2814 "Verify jfieldIDs for instance fields") \
2815 \
2816 notproduct(bool, VerifyJNIEnvThread, false, \
2817 "Verify JNIEnv.thread == Thread::current() when entering VM " \
2818 "from JNI") \
2819 \
2820 develop(bool, VerifyFPU, false, \
2821 "Verify FPU state (check for NaN's, etc.)") \
2822 \
2823 develop(bool, VerifyThread, false, \
2824 "Watch the thread register for corruption (SPARC only)") \
2825 \
2826 develop(bool, VerifyActivationFrameSize, false, \
2827 "Verify that activation frame didn't become smaller than its " \
2828 "minimal size") \
2829 \
2830 develop(bool, TraceFrequencyInlining, false, \
2831 "Trace frequency based inlining") \
2832 \
2833 develop_pd(bool, InlineIntrinsics, \
2834 "Inline intrinsics that can be statically resolved") \
2835 \
2836 product_pd(bool, ProfileInterpreter, \
2837 "Profile at the bytecode level during interpretation") \
2838 \
2839 develop(bool, TraceProfileInterpreter, false, \
2840 "Trace profiling at the bytecode level during interpretation. " \
2841 "This outputs the profiling information collected to improve " \
2842 "jit compilation.") \
2843 \
2844 develop_pd(bool, ProfileTraps, \
2845 "Profile deoptimization traps at the bytecode level") \
2846 \
2847 product(intx, ProfileMaturityPercentage, 20, \
2848 "number of method invocations/branches (expressed as % of " \
2849 "CompileThreshold) before using the method's profile") \
2850 \
2851 develop(bool, PrintMethodData, false, \
2852 "Print the results of +ProfileInterpreter at end of run") \
2853 \
2854 develop(bool, VerifyDataPointer, trueInDebug, \
2855 "Verify the method data pointer during interpreter profiling") \
2856 \
2857 develop(bool, VerifyCompiledCode, false, \
2858 "Include miscellaneous runtime verifications in nmethod code; " \
2859 "default off because it disturbs nmethod size heuristics") \
2860 \
2861 notproduct(bool, CrashGCForDumpingJavaThread, false, \
2862 "Manually make GC thread crash then dump java stack trace; " \
2863 "Test only") \
2864 \
2865 /* compilation */ \
2866 product(bool, UseCompiler, true, \
2867 "Use Just-In-Time compilation") \
2868 \
2869 develop(bool, TraceCompilationPolicy, false, \
2870 "Trace compilation policy") \
2871 \
2872 develop(bool, TimeCompilationPolicy, false, \
2873 "Time the compilation policy") \
2874 \
2875 product(bool, UseCounterDecay, true, \
2876 "Adjust recompilation counters") \
2877 \
2878 develop(intx, CounterHalfLifeTime, 30, \
2879 "Half-life time of invocation counters (in seconds)") \
2880 \
2881 develop(intx, CounterDecayMinIntervalLength, 500, \
2882 "The minimum interval (in milliseconds) between invocation of " \
2883 "CounterDecay") \
2884 \
2885 product(bool, AlwaysCompileLoopMethods, false, \
2886 "When using recompilation, never interpret methods " \
2887 "containing loops") \
2888 \
2889 product(bool, DontCompileHugeMethods, true, \
2890 "Do not compile methods > HugeMethodLimit") \
2891 \
2892 /* Bytecode escape analysis estimation. */ \
2893 product(bool, EstimateArgEscape, true, \
2894 "Analyze bytecodes to estimate escape state of arguments") \
2895 \
2896 product(intx, BCEATraceLevel, 0, \
2897 "How much tracing to do of bytecode escape analysis estimates") \
2898 \
2899 product(intx, MaxBCEAEstimateLevel, 5, \
2900 "Maximum number of nested calls that are analyzed by BC EA") \
2901 \
2902 product(intx, MaxBCEAEstimateSize, 150, \
2903 "Maximum bytecode size of a method to be analyzed by BC EA") \
2904 \
2905 product(intx, AllocatePrefetchStyle, 1, \
2906 "0 = no prefetch, " \
2907 "1 = prefetch instructions for each allocation, " \
2908 "2 = use TLAB watermark to gate allocation prefetch, " \
2909 "3 = use BIS instruction on Sparc for allocation prefetch") \
2910 \
2911 product(intx, AllocatePrefetchDistance, -1, \
2912 "Distance to prefetch ahead of allocation pointer") \
2913 \
2914 product(intx, AllocatePrefetchLines, 3, \
2915 "Number of lines to prefetch ahead of array allocation pointer") \
2916 \
2917 product(intx, AllocateInstancePrefetchLines, 1, \
2918 "Number of lines to prefetch ahead of instance allocation " \
2919 "pointer") \
2920 \
2921 product(intx, AllocatePrefetchStepSize, 16, \
2922 "Step size in bytes of sequential prefetch instructions") \
2923 \
2924 product(intx, AllocatePrefetchInstr, 0, \
2925 "Prefetch instruction to prefetch ahead of allocation pointer") \
2926 \
2927 /* deoptimization */ \
2928 develop(bool, TraceDeoptimization, false, \
2929 "Trace deoptimization") \
2930 \
2931 develop(bool, DebugDeoptimization, false, \
2932 "Tracing various information while debugging deoptimization") \
2933 \
2934 product(intx, SelfDestructTimer, 0, \
2935 "Will cause VM to terminate after a given time (in minutes) " \
2936 "(0 means off)") \
2937 \
2938 product(intx, MaxJavaStackTraceDepth, 1024, \
2939 "The maximum number of lines in the stack trace for Java " \
2940 "exceptions (0 means all)") \
2941 \
2942 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \
2943 "Guarantee a safepoint (at least) every so many milliseconds " \
2944 "(0 means none)")) \
2945 \
2946 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \
2947 "Guarantee a safepoint (at least) every so many milliseconds " \
2948 "(0 means none)")) \
2949 \
2950 product(intx, SafepointTimeoutDelay, 10000, \
2951 "Delay in milliseconds for option SafepointTimeout") \
2952 \
2953 product(intx, NmethodSweepFraction, 16, \
2954 "Number of invocations of sweeper to cover all nmethods") \
2955 \
2956 product(intx, NmethodSweepCheckInterval, 5, \
2957 "Compilers wake up every n seconds to possibly sweep nmethods") \
2958 \
2959 product(intx, NmethodSweepActivity, 10, \
2960 "Removes cold nmethods from code cache if > 0. Higher values " \
2961 "result in more aggressive sweeping") \
2962 \
2963 notproduct(bool, LogSweeper, false, \
2964 "Keep a ring buffer of sweeper activity") \
2965 \
2966 notproduct(intx, SweeperLogEntries, 1024, \
2967 "Number of records in the ring buffer of sweeper activity") \
2968 \
2969 notproduct(intx, MemProfilingInterval, 500, \
2970 "Time between each invocation of the MemProfiler") \
2971 \
2972 develop(intx, MallocCatchPtr, -1, \
2973 "Hit breakpoint when mallocing/freeing this pointer") \
2974 \
2975 notproduct(intx, AssertRepeat, 1, \
2976 "number of times to evaluate expression in assert " \
2977 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \
2978 \
2979 notproduct(ccstrlist, SuppressErrorAt, "", \
2980 "List of assertions (file:line) to muzzle") \
2981 \
2982 notproduct(uintx, HandleAllocationLimit, 1024, \
2983 "Threshold for HandleMark allocation when +TraceHandleAllocation "\
2984 "is used") \
2985 \
2986 develop(uintx, TotalHandleAllocationLimit, 1024, \
2987 "Threshold for total handle allocation when " \
2988 "+TraceHandleAllocation is used") \
2989 \
2990 develop(intx, StackPrintLimit, 100, \
2991 "number of stack frames to print in VM-level stack dump") \
2992 \
2993 notproduct(intx, MaxElementPrintSize, 256, \
2994 "maximum number of elements to print") \
2995 \
2996 notproduct(intx, MaxSubklassPrintSize, 4, \
2997 "maximum number of subklasses to print when printing klass") \
2998 \
2999 product(intx, MaxInlineLevel, 9, \
3000 "maximum number of nested calls that are inlined") \
3001 \
3002 product(intx, MaxRecursiveInlineLevel, 1, \
3003 "maximum number of nested recursive calls that are inlined") \
3004 \
3005 develop(intx, MaxForceInlineLevel, 100, \
3006 "maximum number of nested calls that are forced for inlining " \
3007 "(using CompilerOracle or marked w/ @ForceInline)") \
3008 \
3009 product_pd(intx, InlineSmallCode, \
3010 "Only inline already compiled methods if their code size is " \
3011 "less than this") \
3012 \
3013 product(intx, MaxInlineSize, 35, \
3014 "The maximum bytecode size of a method to be inlined") \
3015 \
3016 product_pd(intx, FreqInlineSize, \
3017 "The maximum bytecode size of a frequent method to be inlined") \
3018 \
3019 product(intx, MaxTrivialSize, 6, \
3020 "The maximum bytecode size of a trivial method to be inlined") \
3021 \
3022 product(intx, MinInliningThreshold, 250, \
3023 "The minimum invocation count a method needs to have to be " \
3024 "inlined") \
3025 \
3026 develop(intx, MethodHistogramCutoff, 100, \
3027 "The cutoff value for method invocation histogram (+CountCalls)") \
3028 \
3029 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \
3030 "Number of interpreted methods to show in profile") \
3031 \
3032 develop(intx, ProfilerNumberOfCompiledMethods, 25, \
3033 "Number of compiled methods to show in profile") \
3034 \
3035 develop(intx, ProfilerNumberOfStubMethods, 25, \
3036 "Number of stub methods to show in profile") \
3037 \
3038 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \
3039 "Number of runtime stub nodes to show in profile") \
3040 \
3041 product(intx, ProfileIntervalsTicks, 100, \
3042 "Number of ticks between printing of interval profile " \
3043 "(+ProfileIntervals)") \
3044 \
3045 notproduct(intx, ScavengeALotInterval, 1, \
3046 "Interval between which scavenge will occur with +ScavengeALot") \
3047 \
3048 notproduct(intx, FullGCALotInterval, 1, \
3049 "Interval between which full gc will occur with +FullGCALot") \
3050 \
3051 notproduct(intx, FullGCALotStart, 0, \
3052 "For which invocation to start FullGCAlot") \
3053 \
3054 notproduct(intx, FullGCALotDummies, 32*K, \
3055 "Dummy object allocated with +FullGCALot, forcing all objects " \
3056 "to move") \
3057 \
3058 develop(intx, DontYieldALotInterval, 10, \
3059 "Interval between which yields will be dropped (milliseconds)") \
3060 \
3061 develop(intx, MinSleepInterval, 1, \
3062 "Minimum sleep() interval (milliseconds) when " \
3063 "ConvertSleepToYield is off (used for Solaris)") \
3064 \
3065 develop(intx, ProfilerPCTickThreshold, 15, \
3066 "Number of ticks in a PC buckets to be a hotspot") \
3067 \
3068 notproduct(intx, DeoptimizeALotInterval, 5, \
3069 "Number of exits until DeoptimizeALot kicks in") \
3070 \
3071 notproduct(intx, ZombieALotInterval, 5, \
3072 "Number of exits until ZombieALot kicks in") \
3073 \
3074 diagnostic(intx, MallocVerifyInterval, 0, \
3075 "If non-zero, verify C heap after every N calls to " \
3076 "malloc/realloc/free") \
3077 \
3078 diagnostic(intx, MallocVerifyStart, 0, \
3079 "If non-zero, start verifying C heap after Nth call to " \
3080 "malloc/realloc/free") \
3081 \
3082 diagnostic(uintx, MallocMaxTestWords, 0, \
3083 "If non-zero, maximum number of words that malloc/realloc can " \
3084 "allocate (for testing only)") \
3085 \
3086 product(intx, TypeProfileWidth, 2, \
3087 "Number of receiver types to record in call/cast profile") \
3088 \
3089 develop(intx, BciProfileWidth, 2, \
3090 "Number of return bci's to record in ret profile") \
3091 \
3092 product(intx, PerMethodRecompilationCutoff, 400, \
3093 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \
3094 \
3095 product(intx, PerBytecodeRecompilationCutoff, 200, \
3096 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \
3097 \
3098 product(intx, PerMethodTrapLimit, 100, \
3099 "Limit on traps (of one kind) in a method (includes inlines)") \
3100 \
3101 experimental(intx, PerMethodSpecTrapLimit, 5000, \
3102 "Limit on speculative traps (of one kind) in a method (includes inlines)") \
3103 \
3104 product(intx, PerBytecodeTrapLimit, 4, \
3105 "Limit on traps (of one kind) at a particular BCI") \
3106 \
3107 experimental(intx, SpecTrapLimitExtraEntries, 3, \
3108 "Extra method data trap entries for speculation") \
3109 \
3110 develop(intx, InlineFrequencyRatio, 20, \
3111 "Ratio of call site execution to caller method invocation") \
3112 \
3113 develop_pd(intx, InlineFrequencyCount, \
3114 "Count of call site execution necessary to trigger frequent " \
3115 "inlining") \
3116 \
3117 develop(intx, InlineThrowCount, 50, \
3118 "Force inlining of interpreted methods that throw this often") \
3119 \
3120 develop(intx, InlineThrowMaxSize, 200, \
3121 "Force inlining of throwing methods smaller than this") \
3122 \
3123 develop(intx, ProfilerNodeSize, 1024, \
3124 "Size in K to allocate for the Profile Nodes of each thread") \
3125 \
3126 product_pd(intx, PreInflateSpin, \
3127 "Number of times to spin wait before inflation") \
3128 \
3129 /* gc parameters */ \
3130 product(uintx, InitialHeapSize, 0, \
3131 "Initial heap size (in bytes); zero means use ergonomics") \
3132 \
3133 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \
3134 "Maximum heap size (in bytes)") \
3135 \
3136 product(uintx, OldSize, ScaleForWordSize(4*M), \
3137 "Initial tenured generation size (in bytes)") \
3138 \
3139 product(uintx, NewSize, ScaleForWordSize(1*M), \
3140 "Initial new generation size (in bytes)") \
3141 \
3142 product(uintx, MaxNewSize, max_uintx, \
3143 "Maximum new generation size (in bytes), max_uintx means set " \
3144 "ergonomically") \
3145 \
3146 product(uintx, PretenureSizeThreshold, 0, \
3147 "Maximum size in bytes of objects allocated in DefNew " \
3148 "generation; zero means no maximum") \
3149 \
3150 product(uintx, TLABSize, 0, \
3151 "Starting TLAB size (in bytes); zero means set ergonomically") \
3152 \
3153 product(uintx, MinTLABSize, 2*K, \
3154 "Minimum allowed TLAB size (in bytes)") \
3155 \
3156 product(uintx, TLABAllocationWeight, 35, \
3157 "Allocation averaging weight") \
3158 \
3159 product(uintx, TLABWasteTargetPercent, 1, \
3160 "Percentage of Eden that can be wasted") \
3161 \
3162 product(uintx, TLABRefillWasteFraction, 64, \
3163 "Maximum TLAB waste at a refill (internal fragmentation)") \
3164 \
3165 product(uintx, TLABWasteIncrement, 4, \
3166 "Increment allowed waste at slow allocation") \
3167 \
3168 product(uintx, SurvivorRatio, 8, \
3169 "Ratio of eden/survivor space size") \
3170 \
3171 product(uintx, NewRatio, 2, \
3172 "Ratio of old/new generation sizes") \
3173 \
3174 product_pd(uintx, NewSizeThreadIncrease, \
3175 "Additional size added to desired new generation size per " \
3176 "non-daemon thread (in bytes)") \
3177 \
3178 product_pd(uintx, MetaspaceSize, \
3179 "Initial size of Metaspaces (in bytes)") \
3180 \
3181 product(uintx, MaxMetaspaceSize, max_uintx, \
3182 "Maximum size of Metaspaces (in bytes)") \
3183 \
3184 product(uintx, CompressedClassSpaceSize, 1*G, \
3185 "Maximum size of class area in Metaspace when compressed " \
3186 "class pointers are used") \
3187 \
3188 manageable(uintx, MinHeapFreeRatio, 40, \
3189 "The minimum percentage of heap free after GC to avoid expansion."\
3190 " For most GCs this applies to the old generation. In G1 and" \
3191 " ParallelGC it applies to the whole heap.") \
3192 \
3193 manageable(uintx, MaxHeapFreeRatio, 70, \
3194 "The maximum percentage of heap free after GC to avoid shrinking."\
3195 " For most GCs this applies to the old generation. In G1 and" \
3196 " ParallelGC it applies to the whole heap.") \
3197 \
3198 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \
3199 "Number of milliseconds per MB of free space in the heap") \
3200 \
3201 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \
3202 "The minimum change in heap space due to GC (in bytes)") \
3203 \
3204 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \
3205 "The minimum expansion of Metaspace (in bytes)") \
3206 \
3207 product(uintx, MinMetaspaceFreeRatio, 40, \
3208 "The minimum percentage of Metaspace free after GC to avoid " \
3209 "expansion") \
3210 \
3211 product(uintx, MaxMetaspaceFreeRatio, 70, \
3212 "The maximum percentage of Metaspace free after GC to avoid " \
3213 "shrinking") \
3214 \
3215 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \
3216 "The maximum expansion of Metaspace without full GC (in bytes)") \
3217 \
3218 product(uintx, QueuedAllocationWarningCount, 0, \
3219 "Number of times an allocation that queues behind a GC " \
3220 "will retry before printing a warning") \
3221 \
3222 diagnostic(uintx, VerifyGCStartAt, 0, \
3223 "GC invoke count where +VerifyBefore/AfterGC kicks in") \
3224 \
3225 diagnostic(intx, VerifyGCLevel, 0, \
3226 "Generation level at which to start +VerifyBefore/AfterGC") \
3227 \
3228 product(uintx, MaxTenuringThreshold, 15, \
3229 "Maximum value for tenuring threshold") \
3230 \
3231 product(uintx, InitialTenuringThreshold, 7, \
3232 "Initial value for tenuring threshold") \
3233 \
3234 product(uintx, TargetSurvivorRatio, 50, \
3235 "Desired percentage of survivor space used after scavenge") \
3236 \
3237 product(uintx, MarkSweepDeadRatio, 5, \
3238 "Percentage (0-100) of the old gen allowed as dead wood. " \
3239 "Serial mark sweep treats this as both the minimum and maximum " \
3240 "value. " \
3241 "CMS uses this value only if it falls back to mark sweep. " \
3242 "Par compact uses a variable scale based on the density of the " \
3243 "generation and treats this as the maximum value when the heap " \
3244 "is either completely full or completely empty. Par compact " \
3245 "also has a smaller default value; see arguments.cpp.") \
3246 \
3247 product(uintx, MarkSweepAlwaysCompactCount, 4, \
3248 "How often should we fully compact the heap (ignoring the dead " \
3249 "space parameters)") \
3250 \
3251 product(intx, PrintCMSStatistics, 0, \
3252 "Statistics for CMS") \
3253 \
3254 product(bool, PrintCMSInitiationStatistics, false, \
3255 "Statistics for initiating a CMS collection") \
3256 \
3257 product(intx, PrintFLSStatistics, 0, \
3258 "Statistics for CMS' FreeListSpace") \
3259 \
3260 product(intx, PrintFLSCensus, 0, \
3261 "Census for CMS' FreeListSpace") \
3262 \
3263 develop(uintx, GCExpandToAllocateDelayMillis, 0, \
3264 "Delay between expansion and allocation (in milliseconds)") \
3265 \
3266 develop(uintx, GCWorkerDelayMillis, 0, \
3267 "Delay in scheduling GC workers (in milliseconds)") \
3268 \
3269 product(intx, DeferThrSuspendLoopCount, 4000, \
3270 "(Unstable) Number of times to iterate in safepoint loop " \
3271 "before blocking VM threads ") \
3272 \
3273 product(intx, DeferPollingPageLoopCount, -1, \
3274 "(Unsafe,Unstable) Number of iterations in safepoint loop " \
3275 "before changing safepoint polling page to RO ") \
3276 \
3277 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \
3278 \
3279 product(bool, PSChunkLargeArrays, true, \
3280 "Process large arrays in chunks") \
3281 \
3282 product(uintx, GCDrainStackTargetSize, 64, \
3283 "Number of entries we will try to leave on the stack " \
3284 "during parallel gc") \
3285 \
3286 /* stack parameters */ \
3287 product_pd(intx, StackYellowPages, \
3288 "Number of yellow zone (recoverable overflows) pages") \
3289 \
3290 product_pd(intx, StackRedPages, \
3291 "Number of red zone (unrecoverable overflows) pages") \
3292 \
3293 product_pd(intx, StackShadowPages, \
3294 "Number of shadow zone (for overflow checking) pages " \
3295 "this should exceed the depth of the VM and native call stack") \
3296 \
3297 product_pd(intx, ThreadStackSize, \
3298 "Thread Stack Size (in Kbytes)") \
3299 \
3300 product_pd(intx, VMThreadStackSize, \
3301 "Non-Java Thread Stack Size (in Kbytes)") \
3302 \
3303 product_pd(intx, CompilerThreadStackSize, \
3304 "Compiler Thread Stack Size (in Kbytes)") \
3305 \
3306 develop_pd(uintx, JVMInvokeMethodSlack, \
3307 "Stack space (bytes) required for JVM_InvokeMethod to complete") \
3308 \
3309 product(uintx, ThreadSafetyMargin, 50*M, \
3310 "Thread safety margin is used on fixed-stack LinuxThreads (on " \
3311 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \
3312 "disable this feature") \
3313 \
3314 /* code cache parameters */ \
3315 /* ppc64 has large code-entry alignment. */ \
3316 develop(uintx, CodeCacheSegmentSize, 64 PPC64_ONLY(+64), \
3317 "Code cache segment size (in bytes) - smallest unit of " \
3318 "allocation") \
3319 \
3320 develop_pd(intx, CodeEntryAlignment, \
3321 "Code entry alignment for generated code (in bytes)") \
3322 \
3323 product_pd(intx, OptoLoopAlignment, \
3324 "Align inner loops to zero relative to this modulus") \
3325 \
3326 product_pd(uintx, InitialCodeCacheSize, \
3327 "Initial code cache size (in bytes)") \
3328 \
3329 develop_pd(uintx, CodeCacheMinimumUseSpace, \
3330 "Minimum code cache size (in bytes) required to start VM.") \
3331 \
3332 product_pd(uintx, ReservedCodeCacheSize, \
3333 "Reserved code cache size (in bytes) - maximum code cache size") \
3334 \
3335 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \
3336 "When less than X space left, we stop compiling") \
3337 \
3338 product_pd(uintx, CodeCacheExpansionSize, \
3339 "Code cache expansion size (in bytes)") \
3340 \
3341 develop_pd(uintx, CodeCacheMinBlockLength, \
3342 "Minimum number of segments in a code cache block") \
3343 \
3344 notproduct(bool, ExitOnFullCodeCache, false, \
3345 "Exit the VM if we fill the code cache") \
3346 \
3347 product(bool, UseCodeCacheFlushing, true, \
3348 "Remove cold/old nmethods from the code cache") \
3349 \
3350 /* interpreter debugging */ \
3351 develop(intx, BinarySwitchThreshold, 5, \
3352 "Minimal number of lookupswitch entries for rewriting to binary " \
3353 "switch") \
3354 \
3355 develop(intx, StopInterpreterAt, 0, \
3356 "Stop interpreter execution at specified bytecode number") \
3357 \
3358 develop(intx, TraceBytecodesAt, 0, \
3359 "Trace bytecodes starting with specified bytecode number") \
3360 \
3361 /* compiler interface */ \
3362 develop(intx, CIStart, 0, \
3363 "The id of the first compilation to permit") \
3364 \
3365 develop(intx, CIStop, max_jint, \
3366 "The id of the last compilation to permit") \
3367 \
3368 develop(intx, CIStartOSR, 0, \
3369 "The id of the first osr compilation to permit " \
3370 "(CICountOSR must be on)") \
3371 \
3372 develop(intx, CIStopOSR, max_jint, \
3373 "The id of the last osr compilation to permit " \
3374 "(CICountOSR must be on)") \
3375 \
3376 develop(intx, CIBreakAtOSR, -1, \
3377 "The id of osr compilation to break at") \
3378 \
3379 develop(intx, CIBreakAt, -1, \
3380 "The id of compilation to break at") \
3381 \
3382 product(ccstrlist, CompileOnly, "", \
3383 "List of methods (pkg/class.name) to restrict compilation to") \
3384 \
3385 product(ccstr, CompileCommandFile, NULL, \
3386 "Read compiler commands from this file [.hotspot_compiler]") \
3387 \
3388 product(ccstrlist, CompileCommand, "", \
3389 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \
3390 \
3391 develop(bool, ReplayCompiles, false, \
3392 "Enable replay of compilations from ReplayDataFile") \
3393 \
3394 product(ccstr, ReplayDataFile, NULL, \
3395 "File containing compilation replay information" \
3396 "[default: ./replay_pid%p.log] (%p replaced with pid)") \
3397 \
3398 product(ccstr, InlineDataFile, NULL, \
3399 "File containing inlining replay information" \
3400 "[default: ./inline_pid%p.log] (%p replaced with pid)") \
3401 \
3402 develop(intx, ReplaySuppressInitializers, 2, \
3403 "Control handling of class initialization during replay: " \
3404 "0 - don't do anything special; " \
3405 "1 - treat all class initializers as empty; " \
3406 "2 - treat class initializers for application classes as empty; " \
3407 "3 - allow all class initializers to run during bootstrap but " \
3408 " pretend they are empty after starting replay") \
3409 \
3410 develop(bool, ReplayIgnoreInitErrors, false, \
3411 "Ignore exceptions thrown during initialization for replay") \
3412 \
3413 product(bool, DumpReplayDataOnError, true, \
3414 "Record replay data for crashing compiler threads") \
3415 \
3416 product(bool, CICompilerCountPerCPU, false, \
3417 "1 compiler thread for log(N CPUs)") \
3418 \
3419 develop(intx, CIFireOOMAt, -1, \
3420 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \
3421 "(non-negative value throws OOM after this many CI accesses " \
3422 "in each compile)") \
3423 notproduct(intx, CICrashAt, -1, \
3424 "id of compilation to trigger assert in compiler thread for " \
3425 "the purpose of testing, e.g. generation of replay data") \
3426 notproduct(bool, CIObjectFactoryVerify, false, \
3427 "enable potentially expensive verification in ciObjectFactory") \
3428 \
3429 /* Priorities */ \
3430 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \
3431 \
3432 product(intx, ThreadPriorityPolicy, 0, \
3433 "0 : Normal. "\
3434 " VM chooses priorities that are appropriate for normal "\
3435 " applications. On Solaris NORM_PRIORITY and above are mapped "\
3436 " to normal native priority. Java priorities below " \
3437 " NORM_PRIORITY map to lower native priority values. On "\
3438 " Windows applications are allowed to use higher native "\
3439 " priorities. However, with ThreadPriorityPolicy=0, VM will "\
3440 " not use the highest possible native priority, "\
3441 " THREAD_PRIORITY_TIME_CRITICAL, as it may interfere with "\
3442 " system threads. On Linux thread priorities are ignored "\
3443 " because the OS does not support static priority in "\
3444 " SCHED_OTHER scheduling class which is the only choice for "\
3445 " non-root, non-realtime applications. "\
3446 "1 : Aggressive. "\
3447 " Java thread priorities map over to the entire range of "\
3448 " native thread priorities. Higher Java thread priorities map "\
3449 " to higher native thread priorities. This policy should be "\
3450 " used with care, as sometimes it can cause performance "\
3451 " degradation in the application and/or the entire system. On "\
3452 " Linux this policy requires root privilege.") \
3453 \
3454 product(bool, ThreadPriorityVerbose, false, \
3455 "Print priority changes") \
3456 \
3457 product(intx, DefaultThreadPriority, -1, \
3458 "The native priority at which threads run if not elsewhere " \
3459 "specified (-1 means no change)") \
3460 \
3461 product(intx, CompilerThreadPriority, -1, \
3462 "The native priority at which compiler threads should run " \
3463 "(-1 means no change)") \
3464 \
3465 product(intx, VMThreadPriority, -1, \
3466 "The native priority at which the VM thread should run " \
3467 "(-1 means no change)") \
3468 \
3469 product(bool, CompilerThreadHintNoPreempt, true, \
3470 "(Solaris only) Give compiler threads an extra quanta") \
3471 \
3472 product(bool, VMThreadHintNoPreempt, false, \
3473 "(Solaris only) Give VM thread an extra quanta") \
3474 \
3475 product(intx, JavaPriority1_To_OSPriority, -1, \
3476 "Map Java priorities to OS priorities") \
3477 \
3478 product(intx, JavaPriority2_To_OSPriority, -1, \
3479 "Map Java priorities to OS priorities") \
3480 \
3481 product(intx, JavaPriority3_To_OSPriority, -1, \
3482 "Map Java priorities to OS priorities") \
3483 \
3484 product(intx, JavaPriority4_To_OSPriority, -1, \
3485 "Map Java priorities to OS priorities") \
3486 \
3487 product(intx, JavaPriority5_To_OSPriority, -1, \
3488 "Map Java priorities to OS priorities") \
3489 \
3490 product(intx, JavaPriority6_To_OSPriority, -1, \
3491 "Map Java priorities to OS priorities") \
3492 \
3493 product(intx, JavaPriority7_To_OSPriority, -1, \
3494 "Map Java priorities to OS priorities") \
3495 \
3496 product(intx, JavaPriority8_To_OSPriority, -1, \
3497 "Map Java priorities to OS priorities") \
3498 \
3499 product(intx, JavaPriority9_To_OSPriority, -1, \
3500 "Map Java priorities to OS priorities") \
3501 \
3502 product(intx, JavaPriority10_To_OSPriority,-1, \
3503 "Map Java priorities to OS priorities") \
3504 \
3505 experimental(bool, UseCriticalJavaThreadPriority, false, \
3506 "Java thread priority 10 maps to critical scheduling priority") \
3507 \
3508 experimental(bool, UseCriticalCompilerThreadPriority, false, \
3509 "Compiler thread(s) run at critical scheduling priority") \
3510 \
3511 experimental(bool, UseCriticalCMSThreadPriority, false, \
3512 "ConcurrentMarkSweep thread runs at critical scheduling priority")\
3513 \
3514 /* compiler debugging */ \
3515 notproduct(intx, CompileTheWorldStartAt, 1, \
3516 "First class to consider when using +CompileTheWorld") \
3517 \
3518 notproduct(intx, CompileTheWorldStopAt, max_jint, \
3519 "Last class to consider when using +CompileTheWorld") \
3520 \
3521 develop(intx, NewCodeParameter, 0, \
3522 "Testing Only: Create a dedicated integer parameter before " \
3523 "putback") \
3524 \
3525 /* new oopmap storage allocation */ \
3526 develop(intx, MinOopMapAllocation, 8, \
3527 "Minimum number of OopMap entries in an OopMapSet") \
3528 \
3529 /* Background Compilation */ \
3530 develop(intx, LongCompileThreshold, 50, \
3531 "Used with +TraceLongCompiles") \
3532 \
3533 product(intx, StarvationMonitorInterval, 200, \
3534 "Pause between each check (in milliseconds)") \
3535 \
3536 /* recompilation */ \
3537 product_pd(intx, CompileThreshold, \
3538 "number of interpreted method invocations before (re-)compiling") \
3539 \
3540 product_pd(intx, BackEdgeThreshold, \
3541 "Interpreter Back edge threshold at which an OSR compilation is " \
3542 "invoked") \
3543 \
3544 product(intx, Tier0InvokeNotifyFreqLog, 7, \
3545 "Interpreter (tier 0) invocation notification frequency") \
3546 \
3547 product(intx, Tier2InvokeNotifyFreqLog, 11, \
3548 "C1 without MDO (tier 2) invocation notification frequency") \
3549 \
3550 product(intx, Tier3InvokeNotifyFreqLog, 10, \
3551 "C1 with MDO profiling (tier 3) invocation notification " \
3552 "frequency") \
3553 \
3554 product(intx, Tier23InlineeNotifyFreqLog, 20, \
3555 "Inlinee invocation (tiers 2 and 3) notification frequency") \
3556 \
3557 product(intx, Tier0BackedgeNotifyFreqLog, 10, \
3558 "Interpreter (tier 0) invocation notification frequency") \
3559 \
3560 product(intx, Tier2BackedgeNotifyFreqLog, 14, \
3561 "C1 without MDO (tier 2) invocation notification frequency") \
3562 \
3563 product(intx, Tier3BackedgeNotifyFreqLog, 13, \
3564 "C1 with MDO profiling (tier 3) invocation notification " \
3565 "frequency") \
3566 \
3567 product(intx, Tier2CompileThreshold, 0, \
3568 "threshold at which tier 2 compilation is invoked") \
3569 \
3570 product(intx, Tier2BackEdgeThreshold, 0, \
3571 "Back edge threshold at which tier 2 compilation is invoked") \
3572 \
3573 product(intx, Tier3InvocationThreshold, 200, \
3574 "Compile if number of method invocations crosses this " \
3575 "threshold") \
3576 \
3577 product(intx, Tier3MinInvocationThreshold, 100, \
3578 "Minimum invocation to compile at tier 3") \
3579 \
3580 product(intx, Tier3CompileThreshold, 2000, \
3581 "Threshold at which tier 3 compilation is invoked (invocation " \
3582 "minimum must be satisfied") \
3583 \
3584 product(intx, Tier3BackEdgeThreshold, 60000, \
3585 "Back edge threshold at which tier 3 OSR compilation is invoked") \
3586 \
3587 product(intx, Tier4InvocationThreshold, 5000, \
3588 "Compile if number of method invocations crosses this " \
3589 "threshold") \
3590 \
3591 product(intx, Tier4MinInvocationThreshold, 600, \
3592 "Minimum invocation to compile at tier 4") \
3593 \
3594 product(intx, Tier4CompileThreshold, 15000, \
3595 "Threshold at which tier 4 compilation is invoked (invocation " \
3596 "minimum must be satisfied") \
3597 \
3598 product(intx, Tier4BackEdgeThreshold, 40000, \
3599 "Back edge threshold at which tier 4 OSR compilation is invoked") \
3600 \
3601 product(intx, Tier3DelayOn, 5, \
3602 "If C2 queue size grows over this amount per compiler thread " \
3603 "stop compiling at tier 3 and start compiling at tier 2") \
3604 \
3605 product(intx, Tier3DelayOff, 2, \
3606 "If C2 queue size is less than this amount per compiler thread " \
3607 "allow methods compiled at tier 2 transition to tier 3") \
3608 \
3609 product(intx, Tier3LoadFeedback, 5, \
3610 "Tier 3 thresholds will increase twofold when C1 queue size " \
3611 "reaches this amount per compiler thread") \
3612 \
3613 product(intx, Tier4LoadFeedback, 3, \
3614 "Tier 4 thresholds will increase twofold when C2 queue size " \
3615 "reaches this amount per compiler thread") \
3616 \
3617 product(intx, TieredCompileTaskTimeout, 50, \
3618 "Kill compile task if method was not used within " \
3619 "given timeout in milliseconds") \
3620 \
3621 product(intx, TieredStopAtLevel, 4, \
3622 "Stop at given compilation level") \
3623 \
3624 product(intx, Tier0ProfilingStartPercentage, 200, \
3625 "Start profiling in interpreter if the counters exceed tier 3 " \
3626 "thresholds by the specified percentage") \
3627 \
3628 product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \
3629 "Increase the compile threshold for C1 compilation if the code " \
3630 "cache is filled by the specified percentage") \
3631 \
3632 product(intx, TieredRateUpdateMinTime, 1, \
3633 "Minimum rate sampling interval (in milliseconds)") \
3634 \
3635 product(intx, TieredRateUpdateMaxTime, 25, \
3636 "Maximum rate sampling interval (in milliseconds)") \
3637 \
3638 product_pd(bool, TieredCompilation, \
3639 "Enable tiered compilation") \
3640 \
3641 product(bool, PrintTieredEvents, false, \
3642 "Print tiered events notifications") \
3643 \
3644 product_pd(intx, OnStackReplacePercentage, \
3645 "NON_TIERED number of method invocations/branches (expressed as " \
3646 "% of CompileThreshold) before (re-)compiling OSR code") \
3647 \
3648 product(intx, InterpreterProfilePercentage, 33, \
3649 "NON_TIERED number of method invocations/branches (expressed as " \
3650 "% of CompileThreshold) before profiling in the interpreter") \
3651 \
3652 develop(intx, MaxRecompilationSearchLength, 10, \
3653 "The maximum number of frames to inspect when searching for " \
3654 "recompilee") \
3655 \
3656 develop(intx, MaxInterpretedSearchLength, 3, \
3657 "The maximum number of interpreted frames to skip when searching "\
3658 "for recompilee") \
3659 \
3660 develop(intx, DesiredMethodLimit, 8000, \
3661 "The desired maximum method size (in bytecodes) after inlining") \
3662 \
3663 develop(intx, HugeMethodLimit, 8000, \
3664 "Don't compile methods larger than this if " \
3665 "+DontCompileHugeMethods") \
3666 \
3667 /* New JDK 1.4 reflection implementation */ \
3668 \
3669 develop(bool, UseNewReflection, true, \
3670 "Temporary flag for transition to reflection based on dynamic " \
3671 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \
3672 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \
3673 "changes were needed") \
3674 \
3675 develop(bool, VerifyReflectionBytecodes, false, \
3676 "Force verification of 1.4 reflection bytecodes. Does not work " \
3677 "in situations like that described in 4486457 or for " \
3678 "constructors generated for serialization, so can not be enabled "\
3679 "in product.") \
3680 \
3681 product(bool, ReflectionWrapResolutionErrors, true, \
3682 "Temporary flag for transition to AbstractMethodError wrapped " \
3683 "in InvocationTargetException. See 6531596") \
3684 \
3685 develop(intx, FastSuperclassLimit, 8, \
3686 "Depth of hardwired instanceof accelerator array") \
3687 \
3688 /* Properties for Java libraries */ \
3689 \
3690 product(uintx, MaxDirectMemorySize, 0, \
3691 "Maximum total size of NIO direct-buffer allocations") \
3692 \
3693 /* temporary developer defined flags */ \
3694 \
3695 diagnostic(bool, UseNewCode, false, \
3696 "Testing Only: Use the new version while testing") \
3697 \
3698 diagnostic(bool, UseNewCode2, false, \
3699 "Testing Only: Use the new version while testing") \
3700 \
3701 diagnostic(bool, UseNewCode3, false, \
3702 "Testing Only: Use the new version while testing") \
3703 \
3704 /* flags for performance data collection */ \
3705 \
3706 product(bool, UsePerfData, falseInEmbedded, \
3707 "Flag to disable jvmstat instrumentation for performance testing "\
3708 "and problem isolation purposes") \
3709 \
3710 product(bool, PerfDataSaveToFile, false, \
3711 "Save PerfData memory to hsperfdata_<pid> file on exit") \
3712 \
3713 product(ccstr, PerfDataSaveFile, NULL, \
3714 "Save PerfData memory to the specified absolute pathname. " \
3715 "The string %p in the file name (if present) " \
3716 "will be replaced by pid") \
3717 \
3718 product(intx, PerfDataSamplingInterval, 50, \
3719 "Data sampling interval (in milliseconds)") \
3720 \
3721 develop(bool, PerfTraceDataCreation, false, \
3722 "Trace creation of Performance Data Entries") \
3723 \
3724 develop(bool, PerfTraceMemOps, false, \
3725 "Trace PerfMemory create/attach/detach calls") \
3726 \
3727 product(bool, PerfDisableSharedMem, false, \
3728 "Store performance data in standard memory") \
3729 \
3730 product(intx, PerfDataMemorySize, 32*K, \
3731 "Size of performance data memory region. Will be rounded " \
3732 "up to a multiple of the native os page size.") \
3733 \
3734 product(intx, PerfMaxStringConstLength, 1024, \
3735 "Maximum PerfStringConstant string length before truncation") \
3736 \
3737 product(bool, PerfAllowAtExitRegistration, false, \
3738 "Allow registration of atexit() methods") \
3739 \
3740 product(bool, PerfBypassFileSystemCheck, false, \
3741 "Bypass Win32 file system criteria checks (Windows Only)") \
3742 \
3743 product(intx, UnguardOnExecutionViolation, 0, \
3744 "Unguard page and retry on no-execute fault (Win32 only) " \
3745 "0=off, 1=conservative, 2=aggressive") \
3746 \
3747 /* Serviceability Support */ \
3748 \
3749 product(bool, ManagementServer, false, \
3750 "Create JMX Management Server") \
3751 \
3752 product(bool, DisableAttachMechanism, false, \
3753 "Disable mechanism that allows tools to attach to this VM") \
3754 \
3755 product(bool, StartAttachListener, false, \
3756 "Always start Attach Listener at VM startup") \
3757 \
3758 manageable(bool, PrintConcurrentLocks, false, \
3759 "Print java.util.concurrent locks in thread dump") \
3760 \
3761 product(bool, TransmitErrorReport, false, \
3762 "Enable error report transmission on erroneous termination") \
3763 \
3764 product(ccstr, ErrorReportServer, NULL, \
3765 "Override built-in error report server address") \
3766 \
3767 /* Shared spaces */ \
3768 \
3769 product(bool, UseSharedSpaces, true, \
3770 "Use shared spaces for metadata") \
3771 \
3772 product(bool, RequireSharedSpaces, false, \
3773 "Require shared spaces for metadata") \
3774 \
3775 product(bool, DumpSharedSpaces, false, \
3776 "Special mode: JVM reads a class list, loads classes, builds " \
3777 "shared spaces, and dumps the shared spaces to a file to be " \
3778 "used in future JVM runs") \
3779 \
3780 product(bool, PrintSharedSpaces, false, \
3781 "Print usage of shared spaces") \
3782 \
3783 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(16*M), \
3784 "Size of read-write space for metadata (in bytes)") \
3785 \
3786 product(uintx, SharedReadOnlySize, NOT_LP64(12*M) LP64_ONLY(16*M), \
3787 "Size of read-only space for metadata (in bytes)") \
3788 \
3789 product(uintx, SharedMiscDataSize, NOT_LP64(2*M) LP64_ONLY(4*M), \
3790 "Size of the shared miscellaneous data area (in bytes)") \
3791 \
3792 product(uintx, SharedMiscCodeSize, 120*K, \
3793 "Size of the shared miscellaneous code area (in bytes)") \
3794 \
3795 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \
3796 NOT_LP64(LINUX_ONLY(2*G) NOT_LINUX(0)), \
3797 "Address to allocate shared memory region for class data") \
3798 \
3799 diagnostic(bool, EnableInvokeDynamic, true, \
3800 "support JSR 292 (method handles, invokedynamic, " \
3801 "anonymous classes") \
3802 \
3803 diagnostic(bool, PrintMethodHandleStubs, false, \
3804 "Print generated stub code for method handles") \
3805 \
3806 develop(bool, TraceMethodHandles, false, \
3807 "trace internal method handle operations") \
3808 \
3809 diagnostic(bool, VerifyMethodHandles, trueInDebug, \
3810 "perform extra checks when constructing method handles") \
3811 \
3812 diagnostic(bool, ShowHiddenFrames, false, \
3813 "show method handle implementation frames (usually hidden)") \
3814 \
3815 experimental(bool, TrustFinalNonStaticFields, false, \
3816 "trust final non-static declarations for constant folding") \
3817 \
3818 diagnostic(bool, FoldStableValues, true, \
3819 "Optimize loads from stable fields (marked w/ @Stable)") \
3820 \
3821 develop(bool, TraceInvokeDynamic, false, \
3822 "trace internal invoke dynamic operations") \
3823 \
3824 diagnostic(bool, PauseAtStartup, false, \
3825 "Causes the VM to pause at startup time and wait for the pause " \
3826 "file to be removed (default: ./vm.paused.<pid>)") \
3827 \
3828 diagnostic(ccstr, PauseAtStartupFile, NULL, \
3829 "The file to create and for whose removal to await when pausing " \
3830 "at startup. (default: ./vm.paused.<pid>)") \
3831 \
3832 diagnostic(bool, PauseAtExit, false, \
3833 "Pause and wait for keypress on exit if a debugger is attached") \
3834 \
3835 product(bool, ExtendedDTraceProbes, false, \
3836 "Enable performance-impacting dtrace probes") \
3837 \
3838 product(bool, DTraceMethodProbes, false, \
3839 "Enable dtrace probes for method-entry and method-exit") \
3840 \
3841 product(bool, DTraceAllocProbes, false, \
3842 "Enable dtrace probes for object allocation") \
3843 \
3844 product(bool, DTraceMonitorProbes, false, \
3845 "Enable dtrace probes for monitor events") \
3846 \
3847 product(bool, RelaxAccessControlCheck, false, \
3848 "Relax the access control checks in the verifier") \
3849 \
3850 diagnostic(bool, PrintDTraceDOF, false, \
3851 "Print the DTrace DOF passed to the system for JSDT probes") \
3852 \
3853 product(uintx, StringTableSize, defaultStringTableSize, \
3854 "Number of buckets in the interned String table") \
3855 \
3856 experimental(uintx, SymbolTableSize, defaultSymbolTableSize, \
3857 "Number of buckets in the JVM internal Symbol table") \
3858 \
3859 product(bool, UseStringDeduplication, false, \
3860 "Use string deduplication") \
3861 \
3862 product(bool, PrintStringDeduplicationStatistics, false, \
3863 "Print string deduplication statistics") \
3864 \
3865 product(uintx, StringDeduplicationAgeThreshold, 3, \
3866 "A string must reach this age (or be promoted to an old region) " \
3867 "to be considered for deduplication") \
3868 \
3869 diagnostic(bool, StringDeduplicationResizeALot, false, \
3870 "Force table resize every time the table is scanned") \
3871 \
3872 diagnostic(bool, StringDeduplicationRehashALot, false, \
3873 "Force table rehash every time the table is scanned") \
3874 \
3875 develop(bool, TraceDefaultMethods, false, \
3876 "Trace the default method processing steps") \
3877 \
3878 develop(bool, VerifyGenericSignatures, false, \
3879 "Abort VM on erroneous or inconsistent generic signatures") \
3880 \
3881 product(bool, UseVMInterruptibleIO, false, \
3882 "(Unstable, Solaris-specific) Thread interrupt before or with " \
3883 "EINTR for I/O operations results in OS_INTRPT. The default " \
3884 "value of this flag is true for JDK 6 and earlier") \
3885 \
3886 diagnostic(bool, WhiteBoxAPI, false, \
3887 "Enable internal testing APIs") \
3888 \
3889 product(bool, PrintGCCause, true, \
3890 "Include GC cause in GC logging") \
3891 \
3892 experimental(intx, SurvivorAlignmentInBytes, 0, \
3893 "Default survivor space alignment in bytes") \
3894 \
3895 product(bool , AllowNonVirtualCalls, false, \
3896 "Obey the ACC_SUPER flag and allow invokenonvirtual calls") \
3897 \
3898 diagnostic(ccstr, SharedArchiveFile, NULL, \
3899 "Override the default location of the CDS archive file") \
3900 \
3901 experimental(uintx, ArrayAllocatorMallocLimit, \
3902 SOLARIS_ONLY(64*K) NOT_SOLARIS(max_uintx), \
3903 "Allocation less than this value will be allocated " \
3904 "using malloc. Larger allocations will use mmap.") \
3905 \
3906 product(bool, EnableTracing, false, \
3907 "Enable event-based tracing") \
3908 \
3909 product(bool, UseLockedTracing, false, \
3910 "Use locked-tracing when doing event-based tracing")
3912 /*
3913 * Macros for factoring of globals
3914 */
3916 // Interface macros
3917 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
3918 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name;
3919 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name;
3920 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name;
3921 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name;
3922 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name;
3923 #ifdef PRODUCT
3924 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type CONST_##name; const type name = value;
3925 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type CONST_##name; const type name = pd_##name;
3926 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type CONST_##name;
3927 #else
3928 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name;
3929 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name;
3930 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name;
3931 #endif
3932 // Special LP64 flags, product only needed for now.
3933 #ifdef _LP64
3934 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name;
3935 #else
3936 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value;
3937 #endif // _LP64
3939 // Implementation macros
3940 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value;
3941 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name;
3942 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value;
3943 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value;
3944 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value;
3945 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value;
3946 #ifdef PRODUCT
3947 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type CONST_##name = value;
3948 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type CONST_##name = pd_##name;
3949 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type CONST_##name = value;
3950 #else
3951 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value;
3952 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name;
3953 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value;
3954 #endif
3955 #ifdef _LP64
3956 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value;
3957 #else
3958 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */
3959 #endif // _LP64
3961 RUNTIME_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG, DECLARE_MANAGEABLE_FLAG, DECLARE_PRODUCT_RW_FLAG, DECLARE_LP64_PRODUCT_FLAG)
3963 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG)
3965 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG)
3967 // Extensions
3969 #include "runtime/globals_ext.hpp"
3971 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP
