Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.hpp @ 12034:274ce305e5b9
8020598: ObjectCountEventSender::send needs INCLUDE_TRACE guards when building OpenJDK with INCLUDE_TRACE=0
Reviewed-by: stefank, brutisso, sjohanss
author | ehelin |
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date | Tue, 13 Aug 2013 18:16:19 +0200 |
parents | 8796fd3ac898 |
children | 3cce976666d9 740e263c80c6 b55e4bd0389e |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_GLOBALS_HPP |
26 #define SHARE_VM_RUNTIME_GLOBALS_HPP | |
27 | |
28 #include "utilities/debug.hpp" | |
4868 | 29 |
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 | |
39 | |
1972 | 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 | |
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49 #ifdef TARGET_ARCH_arm |
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50 # include "globals_arm.hpp" |
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51 #endif |
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52 #ifdef TARGET_ARCH_ppc |
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53 # include "globals_ppc.hpp" |
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54 #endif |
1972 | 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 | |
3960 | 64 #ifdef TARGET_OS_FAMILY_bsd |
65 # include "globals_bsd.hpp" | |
66 #endif | |
1972 | 67 #ifdef TARGET_OS_ARCH_linux_x86 |
68 # include "globals_linux_x86.hpp" | |
69 #endif | |
70 #ifdef TARGET_OS_ARCH_linux_sparc | |
71 # include "globals_linux_sparc.hpp" | |
72 #endif | |
73 #ifdef TARGET_OS_ARCH_linux_zero | |
74 # include "globals_linux_zero.hpp" | |
75 #endif | |
76 #ifdef TARGET_OS_ARCH_solaris_x86 | |
77 # include "globals_solaris_x86.hpp" | |
78 #endif | |
79 #ifdef TARGET_OS_ARCH_solaris_sparc | |
80 # include "globals_solaris_sparc.hpp" | |
81 #endif | |
82 #ifdef TARGET_OS_ARCH_windows_x86 | |
83 # include "globals_windows_x86.hpp" | |
84 #endif | |
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85 #ifdef TARGET_OS_ARCH_linux_arm |
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86 # include "globals_linux_arm.hpp" |
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87 #endif |
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88 #ifdef TARGET_OS_ARCH_linux_ppc |
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89 # include "globals_linux_ppc.hpp" |
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90 #endif |
3960 | 91 #ifdef TARGET_OS_ARCH_bsd_x86 |
92 # include "globals_bsd_x86.hpp" | |
93 #endif | |
94 #ifdef TARGET_OS_ARCH_bsd_zero | |
95 # include "globals_bsd_zero.hpp" | |
96 #endif | |
1972 | 97 #ifdef COMPILER1 |
98 #ifdef TARGET_ARCH_x86 | |
99 # include "c1_globals_x86.hpp" | |
100 #endif | |
101 #ifdef TARGET_ARCH_sparc | |
102 # include "c1_globals_sparc.hpp" | |
103 #endif | |
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104 #ifdef TARGET_ARCH_arm |
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105 # include "c1_globals_arm.hpp" |
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106 #endif |
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107 #ifdef TARGET_ARCH_ppc |
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108 # include "c1_globals_ppc.hpp" |
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109 #endif |
1972 | 110 #ifdef TARGET_OS_FAMILY_linux |
111 # include "c1_globals_linux.hpp" | |
112 #endif | |
113 #ifdef TARGET_OS_FAMILY_solaris | |
114 # include "c1_globals_solaris.hpp" | |
115 #endif | |
116 #ifdef TARGET_OS_FAMILY_windows | |
117 # include "c1_globals_windows.hpp" | |
118 #endif | |
3960 | 119 #ifdef TARGET_OS_FAMILY_bsd |
120 # include "c1_globals_bsd.hpp" | |
121 #endif | |
1972 | 122 #endif |
123 #ifdef COMPILER2 | |
124 #ifdef TARGET_ARCH_x86 | |
125 # include "c2_globals_x86.hpp" | |
126 #endif | |
127 #ifdef TARGET_ARCH_sparc | |
128 # include "c2_globals_sparc.hpp" | |
129 #endif | |
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130 #ifdef TARGET_ARCH_arm |
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131 # include "c2_globals_arm.hpp" |
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132 #endif |
1972 | 133 #ifdef TARGET_OS_FAMILY_linux |
134 # include "c2_globals_linux.hpp" | |
135 #endif | |
136 #ifdef TARGET_OS_FAMILY_solaris | |
137 # include "c2_globals_solaris.hpp" | |
138 #endif | |
139 #ifdef TARGET_OS_FAMILY_windows | |
140 # include "c2_globals_windows.hpp" | |
141 #endif | |
3960 | 142 #ifdef TARGET_OS_FAMILY_bsd |
143 # include "c2_globals_bsd.hpp" | |
144 #endif | |
1972 | 145 #endif |
146 #ifdef SHARK | |
147 #ifdef TARGET_ARCH_zero | |
148 # include "shark_globals_zero.hpp" | |
149 #endif | |
150 #endif | |
151 | |
1692 | 152 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) |
0 | 153 define_pd_global(bool, BackgroundCompilation, false); |
154 define_pd_global(bool, UseTLAB, false); | |
155 define_pd_global(bool, CICompileOSR, false); | |
156 define_pd_global(bool, UseTypeProfile, false); | |
157 define_pd_global(bool, UseOnStackReplacement, false); | |
158 define_pd_global(bool, InlineIntrinsics, false); | |
159 define_pd_global(bool, PreferInterpreterNativeStubs, true); | |
160 define_pd_global(bool, ProfileInterpreter, false); | |
161 define_pd_global(bool, ProfileTraps, false); | |
162 define_pd_global(bool, TieredCompilation, false); | |
163 | |
164 define_pd_global(intx, CompileThreshold, 0); | |
165 define_pd_global(intx, BackEdgeThreshold, 0); | |
166 | |
167 define_pd_global(intx, OnStackReplacePercentage, 0); | |
168 define_pd_global(bool, ResizeTLAB, false); | |
169 define_pd_global(intx, FreqInlineSize, 0); | |
1064 | 170 define_pd_global(intx, InlineSmallCode, 0); |
0 | 171 define_pd_global(intx, NewSizeThreadIncrease, 4*K); |
172 define_pd_global(intx, InlineClassNatives, true); | |
173 define_pd_global(intx, InlineUnsafeOps, true); | |
174 define_pd_global(intx, InitialCodeCacheSize, 160*K); | |
175 define_pd_global(intx, ReservedCodeCacheSize, 32*M); | |
176 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
177 define_pd_global(intx, CodeCacheMinBlockLength, 1); | |
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178 define_pd_global(intx, CodeCacheMinimumUseSpace, 200*K); |
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179 define_pd_global(uintx,MetaspaceSize, ScaleForWordSize(4*M)); |
0 | 180 define_pd_global(bool, NeverActAsServerClassMachine, true); |
1064 | 181 define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
0 | 182 #define CI_COMPILER_COUNT 0 |
183 #else | |
184 | |
185 #ifdef COMPILER2 | |
186 #define CI_COMPILER_COUNT 2 | |
187 #else | |
188 #define CI_COMPILER_COUNT 1 | |
189 #endif // COMPILER2 | |
190 | |
191 #endif // no compilers | |
192 | |
193 // string type aliases used only in this file | |
194 typedef const char* ccstr; | |
195 typedef const char* ccstrlist; // represents string arguments which accumulate | |
196 | |
197 enum FlagValueOrigin { | |
198 DEFAULT = 0, | |
199 COMMAND_LINE = 1, | |
200 ENVIRON_VAR = 2, | |
201 CONFIG_FILE = 3, | |
202 MANAGEMENT = 4, | |
203 ERGONOMIC = 5, | |
204 ATTACH_ON_DEMAND = 6, | |
205 INTERNAL = 99 | |
206 }; | |
207 | |
208 struct Flag { | |
209 const char *type; | |
210 const char *name; | |
211 void* addr; | |
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212 |
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213 NOT_PRODUCT(const char *doc;) |
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214 |
0 | 215 const char *kind; |
216 FlagValueOrigin origin; | |
217 | |
218 // points to all Flags static array | |
219 static Flag *flags; | |
220 | |
221 // number of flags | |
222 static size_t numFlags; | |
223 | |
11070 | 224 static Flag* find_flag(const char* name, size_t length, bool allow_locked = false); |
225 static Flag* fuzzy_match(const char* name, size_t length, bool allow_locked = false); | |
0 | 226 |
227 bool is_bool() const { return strcmp(type, "bool") == 0; } | |
228 bool get_bool() const { return *((bool*) addr); } | |
229 void set_bool(bool value) { *((bool*) addr) = value; } | |
230 | |
231 bool is_intx() const { return strcmp(type, "intx") == 0; } | |
232 intx get_intx() const { return *((intx*) addr); } | |
233 void set_intx(intx value) { *((intx*) addr) = value; } | |
234 | |
235 bool is_uintx() const { return strcmp(type, "uintx") == 0; } | |
236 uintx get_uintx() const { return *((uintx*) addr); } | |
237 void set_uintx(uintx value) { *((uintx*) addr) = value; } | |
238 | |
1064 | 239 bool is_uint64_t() const { return strcmp(type, "uint64_t") == 0; } |
240 uint64_t get_uint64_t() const { return *((uint64_t*) addr); } | |
241 void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; } | |
242 | |
0 | 243 bool is_double() const { return strcmp(type, "double") == 0; } |
244 double get_double() const { return *((double*) addr); } | |
245 void set_double(double value) { *((double*) addr) = value; } | |
246 | |
247 bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; } | |
248 bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; } | |
249 ccstr get_ccstr() const { return *((ccstr*) addr); } | |
250 void set_ccstr(ccstr value) { *((ccstr*) addr) = value; } | |
251 | |
252 bool is_unlocker() const; | |
253 bool is_unlocked() const; | |
254 bool is_writeable() const; | |
255 bool is_external() const; | |
256 | |
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257 bool is_unlocker_ext() const; |
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258 bool is_unlocked_ext() const; |
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259 bool is_writeable_ext() const; |
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260 bool is_external_ext() const; |
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261 |
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262 void get_locked_message(char*, int) const; |
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263 void get_locked_message_ext(char*, int) const; |
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264 |
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265 void print_on(outputStream* st, bool withComments = false ); |
0 | 266 void print_as_flag(outputStream* st); |
267 }; | |
268 | |
269 // debug flags control various aspects of the VM and are global accessible | |
270 | |
271 // use FlagSetting to temporarily change some debug flag | |
272 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
273 // restored to previous value upon leaving scope | |
274 class FlagSetting { | |
275 bool val; | |
276 bool* flag; | |
277 public: | |
278 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
279 ~FlagSetting() { *flag = val; } | |
280 }; | |
281 | |
282 | |
283 class CounterSetting { | |
284 intx* counter; | |
285 public: | |
286 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
287 ~CounterSetting() { (*counter)--; } | |
288 }; | |
289 | |
290 | |
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291 class UIntFlagSetting { |
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292 uintx val; |
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293 uintx* flag; |
0 | 294 public: |
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295 UIntFlagSetting(uintx& fl, uintx newValue) { flag = &fl; val = fl; fl = newValue; } |
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296 ~UIntFlagSetting() { *flag = val; } |
0 | 297 }; |
298 | |
299 | |
300 class DoubleFlagSetting { | |
301 double val; | |
302 double* flag; | |
303 public: | |
304 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
305 ~DoubleFlagSetting() { *flag = val; } | |
306 }; | |
307 | |
308 | |
309 class CommandLineFlags { | |
310 public: | |
311 static bool boolAt(char* name, size_t len, bool* value); | |
312 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
313 static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin); | |
314 static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); } | |
315 | |
316 static bool intxAt(char* name, size_t len, intx* value); | |
317 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
318 static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin); | |
319 static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); } | |
320 | |
321 static bool uintxAt(char* name, size_t len, uintx* value); | |
322 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
323 static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin); | |
324 static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); } | |
325 | |
1064 | 326 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
327 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
328 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin); | |
329 static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); } | |
330 | |
0 | 331 static bool doubleAt(char* name, size_t len, double* value); |
332 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
333 static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin); | |
334 static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); } | |
335 | |
336 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
337 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
338 static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin); | |
339 static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); } | |
340 | |
341 // Returns false if name is not a command line flag. | |
342 static bool wasSetOnCmdline(const char* name, bool* value); | |
4773 | 343 static void printSetFlags(outputStream* out); |
0 | 344 |
4773 | 345 static void printFlags(outputStream* out, bool withComments); |
0 | 346 |
347 static void verify() PRODUCT_RETURN; | |
348 }; | |
349 | |
350 // use this for flags that are true by default in the debug version but | |
351 // false in the optimized version, and vice versa | |
352 #ifdef ASSERT | |
353 #define trueInDebug true | |
354 #define falseInDebug false | |
355 #else | |
356 #define trueInDebug false | |
357 #define falseInDebug true | |
358 #endif | |
359 | |
360 // use this for flags that are true per default in the product build | |
361 // but false in development builds, and vice versa | |
362 #ifdef PRODUCT | |
363 #define trueInProduct true | |
364 #define falseInProduct false | |
365 #else | |
366 #define trueInProduct false | |
367 #define falseInProduct true | |
368 #endif | |
369 | |
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370 #ifdef JAVASE_EMBEDDED |
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371 #define falseInEmbedded false |
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372 #else |
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373 #define falseInEmbedded true |
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374 #endif |
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375 |
0 | 376 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
377 // product flags are always settable / visible | |
378 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
379 | |
380 // A flag must be declared with one of the following types: | |
381 // bool, intx, uintx, ccstr. | |
382 // The type "ccstr" is an alias for "const char*" and is used | |
383 // only in this file, because the macrology requires single-token type names. | |
384 | |
385 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
386 // They are to be used for VM quality assurance or field diagnosis | |
387 // of VM bugs. They are hidden so that users will not be encouraged to | |
388 // try them as if they were VM ordinary execution options. However, they | |
389 // are available in the product version of the VM. Under instruction | |
390 // from support engineers, VM customers can turn them on to collect | |
391 // diagnostic information about VM problems. To use a VM diagnostic | |
392 // option, you must first specify +UnlockDiagnosticVMOptions. | |
393 // (This master switch also affects the behavior of -Xprintflags.) | |
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394 // |
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395 // experimental flags are in support of features that are not |
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396 // part of the officially supported product, but are available |
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397 // for experimenting with. They could, for example, be performance |
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398 // features that may not have undergone full or rigorous QA, but which may |
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399 // help performance in some cases and released for experimentation |
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400 // by the community of users and developers. This flag also allows one to |
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401 // be able to build a fully supported product that nonetheless also |
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402 // ships with some unsupported, lightly tested, experimental features. |
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403 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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404 // UnlockExperimentalVMOptions flag, which allows the control and |
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405 // modification of the experimental flags. |
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406 // |
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407 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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408 // and they are not supported on production loads, except under explicit |
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409 // direction from support engineers. |
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410 // |
0 | 411 // manageable flags are writeable external product flags. |
412 // They are dynamically writeable through the JDK management interface | |
413 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
414 // These flags are external exported interface (see CCC). The list of | |
415 // manageable flags can be queried programmatically through the management | |
416 // interface. | |
417 // | |
418 // A flag can be made as "manageable" only if | |
419 // - the flag is defined in a CCC as an external exported interface. | |
420 // - the VM implementation supports dynamic setting of the flag. | |
421 // This implies that the VM must *always* query the flag variable | |
422 // and not reuse state related to the flag state at any given time. | |
423 // - you want the flag to be queried programmatically by the customers. | |
424 // | |
425 // product_rw flags are writeable internal product flags. | |
426 // They are like "manageable" flags but for internal/private use. | |
427 // The list of product_rw flags are internal/private flags which | |
428 // may be changed/removed in a future release. It can be set | |
429 // through the management interface to get/set value | |
430 // when the name of flag is supplied. | |
431 // | |
432 // A flag can be made as "product_rw" only if | |
433 // - the VM implementation supports dynamic setting of the flag. | |
434 // This implies that the VM must *always* query the flag variable | |
435 // and not reuse state related to the flag state at any given time. | |
436 // | |
437 // Note that when there is a need to support develop flags to be writeable, | |
438 // it can be done in the same way as product_rw. | |
439 | |
350
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440 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
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441 \ |
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442 lp64_product(bool, UseCompressedOops, false, \ |
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443 "Use 32-bit object references in 64-bit VM " \ |
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444 "lp64_product means flag is always constant in 32 bit VM") \ |
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445 \ |
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446 lp64_product(bool, UseCompressedKlassPointers, false, \ |
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447 "Use 32-bit klass pointers in 64-bit VM " \ |
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448 "lp64_product means flag is always constant in 32 bit VM") \ |
0 | 449 \ |
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450 notproduct(bool, CheckCompressedOops, true, \ |
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451 "generate checks in encoding/decoding code in debug VM") \ |
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452 \ |
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453 product_pd(uintx, HeapBaseMinAddress, \ |
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454 "OS specific low limit for heap base address") \ |
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455 \ |
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456 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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457 "Print compressed oops base address and encoding mode") \ |
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458 \ |
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459 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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460 "Default object alignment in bytes, 8 is minimum") \ |
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461 \ |
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462 product(bool, AssumeMP, false, \ |
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463 "Instruct the VM to assume multiple processors are available") \ |
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464 \ |
0 | 465 /* UseMembar is theoretically a temp flag used for memory barrier \ |
466 * removal testing. It was supposed to be removed before FCS but has \ | |
467 * been re-added (see 6401008) */ \ | |
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468 product_pd(bool, UseMembar, \ |
0 | 469 "(Unstable) Issues membars on thread state transitions") \ |
470 \ | |
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471 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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472 * that don't support it. This will be replaced by processor detection \ |
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473 * logic. \ |
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474 */ \ |
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475 product(bool, UsePPCLWSYNC, true, \ |
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476 "Use lwsync instruction if true, else use slower sync") \ |
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477 \ |
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478 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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479 "Whether to clean the chunk pool asynchronously") \ |
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480 \ |
6818 | 481 /* Temporary: See 6948537 */ \ |
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482 experimental(bool, UseMemSetInBOT, true, \ |
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483 "(Unstable) uses memset in BOT updates in GC code") \ |
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484 \ |
0 | 485 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
350
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486 "Enable normal processing of flags relating to field diagnostics")\ |
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487 \ |
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488 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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489 "Enable normal processing of flags relating to experimental features")\ |
0 | 490 \ |
491 product(bool, JavaMonitorsInStackTrace, true, \ | |
492 "Print info. about Java monitor locks when the stacks are dumped")\ | |
493 \ | |
494 product_pd(bool, UseLargePages, \ | |
495 "Use large page memory") \ | |
496 \ | |
389
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497 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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498 "Allocate large pages individually for better affinity") \ |
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499 \ |
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500 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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501 "Fail large pages individual allocation") \ |
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502 \ |
0 | 503 develop(bool, TracePageSizes, false, \ |
504 "Trace page size selection and usage.") \ | |
505 \ | |
506 product(bool, UseNUMA, false, \ | |
507 "Use NUMA if available") \ | |
508 \ | |
3885 | 509 product(bool, UseNUMAInterleaving, false, \ |
510 "Interleave memory across NUMA nodes if available") \ | |
511 \ | |
512 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
513 "Granularity to use for NUMA interleaving on Windows OS") \ | |
514 \ | |
462
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515 product(bool, ForceNUMA, false, \ |
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516 "Force NUMA optimizations on single-node/UMA systems") \ |
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517 \ |
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518 product(uintx, NUMAChunkResizeWeight, 20, \ |
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519 "Percentage (0-100) used to weigh the current sample when " \ |
0 | 520 "computing exponentially decaying average for " \ |
521 "AdaptiveNUMAChunkSizing") \ | |
522 \ | |
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523 product(uintx, NUMASpaceResizeRate, 1*G, \ |
0 | 524 "Do not reallocate more that this amount per collection") \ |
525 \ | |
526 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
527 "Enable adaptive chunk sizing for NUMA") \ | |
528 \ | |
529 product(bool, NUMAStats, false, \ | |
530 "Print NUMA stats in detailed heap information") \ | |
531 \ | |
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532 product(uintx, NUMAPageScanRate, 256, \ |
0 | 533 "Maximum number of pages to include in the page scan procedure") \ |
534 \ | |
535 product_pd(bool, NeedsDeoptSuspend, \ | |
536 "True for register window machines (sparc/ia64)") \ | |
537 \ | |
538 product(intx, UseSSE, 99, \ | |
539 "Highest supported SSE instructions set on x86/x64") \ | |
540 \ | |
6894 | 541 product(bool, UseAES, false, \ |
542 "Control whether AES instructions can be used on x86/x64") \ | |
543 \ | |
0 | 544 product(uintx, LargePageSizeInBytes, 0, \ |
545 "Large page size (0 to let VM choose the page size") \ | |
546 \ | |
547 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
548 "Use large pages if max heap is at least this big") \ | |
549 \ | |
550 product(bool, ForceTimeHighResolution, false, \ | |
551 "Using high time resolution(For Win32 only)") \ | |
552 \ | |
553 develop(bool, TraceItables, false, \ | |
554 "Trace initialization and use of itables") \ | |
555 \ | |
556 develop(bool, TracePcPatching, false, \ | |
557 "Trace usage of frame::patch_pc") \ | |
558 \ | |
559 develop(bool, TraceJumps, false, \ | |
560 "Trace assembly jumps in thread ring buffer") \ | |
561 \ | |
562 develop(bool, TraceRelocator, false, \ | |
563 "Trace the bytecode relocator") \ | |
564 \ | |
565 develop(bool, TraceLongCompiles, false, \ | |
566 "Print out every time compilation is longer than " \ | |
567 "a given threashold") \ | |
568 \ | |
569 develop(bool, SafepointALot, false, \ | |
570 "Generates a lot of safepoints. Works with " \ | |
571 "GuaranteedSafepointInterval") \ | |
572 \ | |
573 product_pd(bool, BackgroundCompilation, \ | |
574 "A thread requesting compilation is not blocked during " \ | |
575 "compilation") \ | |
576 \ | |
577 product(bool, PrintVMQWaitTime, false, \ | |
578 "Prints out the waiting time in VM operation queue") \ | |
579 \ | |
580 develop(bool, NoYieldsInMicrolock, false, \ | |
581 "Disable yields in microlock") \ | |
582 \ | |
583 develop(bool, TraceOopMapGeneration, false, \ | |
584 "Shows oopmap generation") \ | |
585 \ | |
586 product(bool, MethodFlushing, true, \ | |
587 "Reclamation of zombie and not-entrant methods") \ | |
588 \ | |
589 develop(bool, VerifyStack, false, \ | |
590 "Verify stack of each thread when it is entering a runtime call") \ | |
591 \ | |
4059
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592 diagnostic(bool, ForceUnreachable, false, \ |
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593 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ |
0 | 594 \ |
595 notproduct(bool, StressDerivedPointers, false, \ | |
596 "Force scavenge when a derived pointers is detected on stack " \ | |
597 "after rtm call") \ | |
598 \ | |
599 develop(bool, TraceDerivedPointers, false, \ | |
600 "Trace traversal of derived pointers on stack") \ | |
601 \ | |
602 notproduct(bool, TraceCodeBlobStacks, false, \ | |
603 "Trace stack-walk of codeblobs") \ | |
604 \ | |
605 product(bool, PrintJNIResolving, false, \ | |
606 "Used to implement -v:jni") \ | |
607 \ | |
608 notproduct(bool, PrintRewrites, false, \ | |
609 "Print methods that are being rewritten") \ | |
610 \ | |
611 product(bool, UseInlineCaches, true, \ | |
612 "Use Inline Caches for virtual calls ") \ | |
613 \ | |
614 develop(bool, InlineArrayCopy, true, \ | |
615 "inline arraycopy native that is known to be part of " \ | |
616 "base library DLL") \ | |
617 \ | |
618 develop(bool, InlineObjectHash, true, \ | |
619 "inline Object::hashCode() native that is known to be part " \ | |
620 "of base library DLL") \ | |
621 \ | |
622 develop(bool, InlineNatives, true, \ | |
623 "inline natives that are known to be part of base library DLL") \ | |
624 \ | |
625 develop(bool, InlineMathNatives, true, \ | |
626 "inline SinD, CosD, etc.") \ | |
627 \ | |
628 develop(bool, InlineClassNatives, true, \ | |
629 "inline Class.isInstance, etc") \ | |
630 \ | |
631 develop(bool, InlineThreadNatives, true, \ | |
632 "inline Thread.currentThread, etc") \ | |
633 \ | |
634 develop(bool, InlineUnsafeOps, true, \ | |
635 "inline memory ops (native methods) from sun.misc.Unsafe") \ | |
636 \ | |
4873
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637 product(bool, CriticalJNINatives, true, \ |
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638 "check for critical JNI entry points") \ |
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639 \ |
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640 notproduct(bool, StressCriticalJNINatives, false, \ |
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641 "Exercise register saving code in critical natives") \ |
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|
642 \ |
681 | 643 product(bool, UseSSE42Intrinsics, false, \ |
644 "SSE4.2 versions of intrinsics") \ | |
645 \ | |
6894 | 646 product(bool, UseAESIntrinsics, false, \ |
647 "use intrinsics for AES versions of crypto") \ | |
648 \ | |
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
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11079
diff
changeset
|
649 product(bool, UseCRC32Intrinsics, false, \ |
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
11079
diff
changeset
|
650 "use intrinsics for java.util.zip.CRC32") \ |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
11079
diff
changeset
|
651 \ |
0 | 652 develop(bool, TraceCallFixup, false, \ |
653 "traces all call fixups") \ | |
654 \ | |
655 develop(bool, DeoptimizeALot, false, \ | |
656 "deoptimize at every exit from the runtime system") \ | |
657 \ | |
434 | 658 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
0 | 659 "a comma separated list of bcis to deoptimize at") \ |
660 \ | |
661 product(bool, DeoptimizeRandom, false, \ | |
662 "deoptimize random frames on random exit from the runtime system")\ | |
663 \ | |
664 notproduct(bool, ZombieALot, false, \ | |
665 "creates zombies (non-entrant) at exit from the runt. system") \ | |
666 \ | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2125
diff
changeset
|
667 product(bool, UnlinkSymbolsALot, false, \ |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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2125
diff
changeset
|
668 "unlink unreferenced symbols from the symbol table at safepoints")\ |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
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diff
changeset
|
669 \ |
0 | 670 notproduct(bool, WalkStackALot, false, \ |
671 "trace stack (no print) at every exit from the runtime system") \ | |
672 \ | |
4006 | 673 product(bool, Debugging, false, \ |
0 | 674 "set when executing debug methods in debug.ccp " \ |
675 "(to prevent triggering assertions)") \ | |
676 \ | |
677 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
678 "Enable strict checks that safepoints cannot happen for threads " \ | |
679 "that used No_Safepoint_Verifier") \ | |
680 \ | |
681 notproduct(bool, VerifyLastFrame, false, \ | |
682 "Verify oops on last frame on entry to VM") \ | |
683 \ | |
684 develop(bool, TraceHandleAllocation, false, \ | |
685 "Prints out warnings when suspicious many handles are allocated") \ | |
686 \ | |
687 product(bool, UseCompilerSafepoints, true, \ | |
688 "Stop at safepoints in compiled code") \ | |
689 \ | |
690 product(bool, FailOverToOldVerifier, true, \ | |
691 "fail over to old verifier when split verifier fails") \ | |
692 \ | |
693 develop(bool, ShowSafepointMsgs, false, \ | |
694 "Show msg. about safepoint synch.") \ | |
695 \ | |
696 product(bool, SafepointTimeout, false, \ | |
697 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
698 "milliseconds if failed to reach safepoint") \ | |
699 \ | |
700 develop(bool, DieOnSafepointTimeout, false, \ | |
701 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
702 \ | |
703 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
704 /* typically, at most a few retries are needed */ \ | |
705 product(intx, SuspendRetryCount, 50, \ | |
706 "Maximum retry count for an external suspend request") \ | |
707 \ | |
708 product(intx, SuspendRetryDelay, 5, \ | |
709 "Milliseconds to delay per retry (* current_retry_count)") \ | |
710 \ | |
711 product(bool, AssertOnSuspendWaitFailure, false, \ | |
712 "Assert/Guarantee on external suspend wait failure") \ | |
713 \ | |
714 product(bool, TraceSuspendWaitFailures, false, \ | |
715 "Trace external suspend wait failures") \ | |
716 \ | |
717 product(bool, MaxFDLimit, true, \ | |
718 "Bump the number of file descriptors to max in solaris.") \ | |
719 \ | |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
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diff
changeset
|
720 diagnostic(bool, LogEvents, true, \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
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parents:
4868
diff
changeset
|
721 "Enable the various ring buffer event logs") \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
722 \ |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
723 diagnostic(uintx, LogEventsBufferEntries, 10, \ |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
724 "Enable the various ring buffer event logs") \ |
0 | 725 \ |
726 product(bool, BytecodeVerificationRemote, true, \ | |
727 "Enables the Java bytecode verifier for remote classes") \ | |
728 \ | |
729 product(bool, BytecodeVerificationLocal, false, \ | |
730 "Enables the Java bytecode verifier for local classes") \ | |
731 \ | |
732 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
733 "Force exceptions on FP stack under/overflow") \ | |
734 \ | |
735 develop(bool, VerifyStackAtCalls, false, \ | |
736 "Verify that the stack pointer is unchanged after calls") \ | |
737 \ | |
738 develop(bool, TraceJavaAssertions, false, \ | |
739 "Trace java language assertions") \ | |
740 \ | |
741 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
742 "temporary - see javaClasses.cpp") \ | |
743 \ | |
744 notproduct(bool, PrintMallocFree, false, \ | |
745 "Trace calls to C heap malloc/free allocation") \ | |
746 \ | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1660
diff
changeset
|
747 product(bool, PrintOopAddress, false, \ |
0 | 748 "Always print the location of the oop") \ |
749 \ | |
750 notproduct(bool, VerifyCodeCacheOften, false, \ | |
751 "Verify compiled-code cache often") \ | |
752 \ | |
753 develop(bool, ZapDeadCompiledLocals, false, \ | |
754 "Zap dead locals in compiler frames") \ | |
755 \ | |
756 notproduct(bool, ZapDeadLocalsOld, false, \ | |
757 "Zap dead locals (old version, zaps all frames when " \ | |
758 "entering the VM") \ | |
759 \ | |
760 notproduct(bool, CheckOopishValues, false, \ | |
761 "Warn if value contains oop ( requires ZapDeadLocals)") \ | |
762 \ | |
763 develop(bool, UseMallocOnly, false, \ | |
764 "use only malloc/free for allocation (no resource area/arena)") \ | |
765 \ | |
766 develop(bool, PrintMalloc, false, \ | |
767 "print all malloc/free calls") \ | |
768 \ | |
2250 | 769 develop(bool, PrintMallocStatistics, false, \ |
770 "print malloc/free statistics") \ | |
771 \ | |
0 | 772 develop(bool, ZapResourceArea, trueInDebug, \ |
773 "Zap freed resource/arena space with 0xABABABAB") \ | |
774 \ | |
775 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
776 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
777 \ | |
778 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
779 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
780 \ | |
1836
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
781 notproduct(bool, ZapStackSegments, trueInDebug, \ |
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
782 "Zap allocated/freed Stack segments with 0xFADFADED") \ |
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
783 \ |
263
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
784 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
0 | 785 "Zap unused heap space with 0xBAADBABE") \ |
786 \ | |
263
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
787 develop(bool, TraceZapUnusedHeapArea, false, \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
788 "Trace zapping of unused heap space") \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
789 \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
790 develop(bool, CheckZapUnusedHeapArea, false, \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
791 "Check zapping of unused heap space") \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
792 \ |
481
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
793 develop(bool, ZapFillerObjects, trueInDebug, \ |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
794 "Zap filler objects with 0xDEAFBABE") \ |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
795 \ |
0 | 796 develop(bool, PrintVMMessages, true, \ |
797 "Print vm messages on console") \ | |
798 \ | |
799 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
800 "Print the time the application has been running") \ | |
801 \ | |
802 product(bool, PrintGCApplicationStoppedTime, false, \ | |
803 "Print the time the application has been stopped") \ | |
804 \ | |
6605 | 805 diagnostic(bool, VerboseVerification, false, \ |
806 "Display detailed verification details") \ | |
807 \ | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
808 notproduct(uintx, ErrorHandlerTest, 0, \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
809 "If > 0, provokes an error after VM initialization; the value" \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
810 "determines which error to provoke. See test_error_handler()" \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
811 "in debug.cpp.") \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
812 \ |
0 | 813 develop(bool, Verbose, false, \ |
814 "Prints additional debugging information from other modes") \ | |
815 \ | |
816 develop(bool, PrintMiscellaneous, false, \ | |
817 "Prints uncategorized debugging information (requires +Verbose)") \ | |
818 \ | |
819 develop(bool, WizardMode, false, \ | |
820 "Prints much more debugging information") \ | |
821 \ | |
822 product(bool, ShowMessageBoxOnError, false, \ | |
823 "Keep process alive on VM fatal error") \ | |
824 \ | |
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
825 product(bool, CreateMinidumpOnCrash, false, \ |
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
826 "Create minidump on VM fatal error") \ |
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
827 \ |
0 | 828 product_pd(bool, UseOSErrorReporting, \ |
829 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
830 \ | |
831 product(bool, SuppressFatalErrorMessage, false, \ | |
832 "Do NO Fatal Error report [Avoid deadlock]") \ | |
833 \ | |
834 product(ccstrlist, OnError, "", \ | |
835 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
836 "for examples") \ | |
837 \ | |
838 product(ccstrlist, OnOutOfMemoryError, "", \ | |
839 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
840 \ | |
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
841 manageable(bool, HeapDumpBeforeFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
842 "Dump heap to file before any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
843 \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
844 manageable(bool, HeapDumpAfterFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
845 "Dump heap to file after any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
846 \ |
0 | 847 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
848 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
849 \ | |
850 manageable(ccstr, HeapDumpPath, NULL, \ | |
851 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ | |
852 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ | |
853 "in the working directory)") \ | |
854 \ | |
855 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
856 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
857 "when the heap usage is larger than this") \ | |
858 \ | |
859 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
860 "Approximate segment size when generating a segmented heap dump") \ | |
861 \ | |
862 develop(bool, BreakAtWarning, false, \ | |
863 "Execute breakpoint upon encountering VM warning") \ | |
864 \ | |
865 develop(bool, TraceVMOperation, false, \ | |
866 "Trace vm operations") \ | |
867 \ | |
868 develop(bool, UseFakeTimers, false, \ | |
869 "Tells whether the VM should use system time or a fake timer") \ | |
870 \ | |
6197 | 871 product(ccstr, NativeMemoryTracking, "off", \ |
872 "Native memory tracking options") \ | |
873 \ | |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
874 diagnostic(bool, PrintNMTStatistics, false, \ |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
875 "Print native memory tracking summary data if it is on") \ |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
876 \ |
8810
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
877 diagnostic(bool, AutoShutdownNMT, true, \ |
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
878 "Automatically shutdown native memory tracking under stress " \ |
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
879 "situation. When set to false, native memory tracking tries to " \ |
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
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parents:
8802
diff
changeset
|
880 "stay alive at the expense of JVM performance") \ |
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
881 \ |
0 | 882 diagnostic(bool, LogCompilation, false, \ |
883 "Log compilation activity in detail to hotspot.log or LogFile") \ | |
884 \ | |
885 product(bool, PrintCompilation, false, \ | |
886 "Print compilations") \ | |
887 \ | |
888 diagnostic(bool, TraceNMethodInstalls, false, \ | |
889 "Trace nmethod intallation") \ | |
890 \ | |
4119
7793051af7d6
7110058: change default for ScavengeRootsInCode to 2
twisti
parents:
4065
diff
changeset
|
891 diagnostic(intx, ScavengeRootsInCode, 2, \ |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
892 "0: do not allow scavengable oops in the code cache; " \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
893 "1: allow scavenging from the code cache; " \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
894 "2: emit as many constants as the compiler can see") \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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parents:
910
diff
changeset
|
895 \ |
0 | 896 product(bool, AlwaysRestoreFPU, false, \ |
897 "Restore the FPU control word after every JNI call (expensive)") \ | |
898 \ | |
4064
670a74b863fc
7107042: assert(no_dead_loop) failed: dead loop detected
kvn
parents:
4059
diff
changeset
|
899 diagnostic(bool, PrintCompilation2, false, \ |
0 | 900 "Print additional statistics per compilation") \ |
901 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
902 diagnostic(bool, PrintAdapterHandlers, false, \ |
0 | 903 "Print code generated for i2c/c2i adapters") \ |
904 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
905 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
906 "Verify that i2c/c2i adapters are called properly") \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6199
diff
changeset
|
907 \ |
1207
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
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parents:
1206
diff
changeset
|
908 develop(bool, VerifyAdapterSharing, false, \ |
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
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parents:
1206
diff
changeset
|
909 "Verify that the code for shared adapters is the equivalent") \ |
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
910 \ |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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parents:
76
diff
changeset
|
911 diagnostic(bool, PrintAssembly, false, \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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parents:
76
diff
changeset
|
912 "Print assembly code (using external disassembler.so)") \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
913 \ |
370
885fe0f95828
6744783: HotSpot segfaults if given -XX options with an empty string argument
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parents:
325
diff
changeset
|
914 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
100
c7c777385a15
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jrose
parents:
76
diff
changeset
|
915 "Options string passed to disassembler.so") \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
916 \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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parents:
76
diff
changeset
|
917 diagnostic(bool, PrintNMethods, false, \ |
0 | 918 "Print assembly code for nmethods when generated") \ |
919 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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parents:
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diff
changeset
|
920 diagnostic(bool, PrintNativeNMethods, false, \ |
0 | 921 "Print assembly code for native nmethods when generated") \ |
922 \ | |
923 develop(bool, PrintDebugInfo, false, \ | |
924 "Print debug information for all nmethods when generated") \ | |
925 \ | |
926 develop(bool, PrintRelocations, false, \ | |
927 "Print relocation information for all nmethods when generated") \ | |
928 \ | |
929 develop(bool, PrintDependencies, false, \ | |
930 "Print dependency information for all nmethods when generated") \ | |
931 \ | |
932 develop(bool, PrintExceptionHandlers, false, \ | |
933 "Print exception handler tables for all nmethods when generated") \ | |
934 \ | |
7428
2d6c433b1f38
8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents:
6985
diff
changeset
|
935 develop(bool, StressCompiledExceptionHandlers, false, \ |
2d6c433b1f38
8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents:
6985
diff
changeset
|
936 "Exercise compiled exception handlers") \ |
2d6c433b1f38
8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents:
6985
diff
changeset
|
937 \ |
0 | 938 develop(bool, InterceptOSException, false, \ |
939 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
940 "exception happens") \ | |
941 \ | |
7595
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
942 product(bool, PrintCodeCache, false, \ |
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
943 "Print the code cache memory usage when exiting") \ |
0 | 944 \ |
945 develop(bool, PrintCodeCache2, false, \ | |
7595
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946 "Print detailed usage info on the code cache when exiting") \ |
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947 \ |
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948 product(bool, PrintCodeCacheOnCompilation, false, \ |
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949 "Print the code cache memory usage each time a method is compiled") \ |
0 | 950 \ |
100
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951 diagnostic(bool, PrintStubCode, false, \ |
0 | 952 "Print generated stub code") \ |
953 \ | |
954 product(bool, StackTraceInThrowable, true, \ | |
955 "Collect backtrace in throwable when exception happens") \ | |
956 \ | |
957 product(bool, OmitStackTraceInFastThrow, true, \ | |
958 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
959 \ | |
960 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
961 "Prints byte code statictics when dumping profiler output") \ | |
962 \ | |
963 product(bool, ProfilerRecordPC, false, \ | |
964 "Collects tick for each 16 byte interval of compiled code") \ | |
965 \ | |
1064 | 966 product(bool, ProfileVM, false, \ |
0 | 967 "Profiles ticks that fall within VM (either in the VM Thread " \ |
968 "or VM code called through stubs)") \ | |
969 \ | |
970 product(bool, ProfileIntervals, false, \ | |
971 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
972 \ | |
973 notproduct(bool, ProfilerCheckIntervals, false, \ | |
974 "Collect and print info on spacing of profiler ticks") \ | |
975 \ | |
976 develop(bool, PrintJVMWarnings, false, \ | |
977 "Prints warnings for unimplemented JVM functions") \ | |
978 \ | |
1870
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979 product(bool, PrintWarnings, true, \ |
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980 "Prints JVM warnings to output stream") \ |
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981 \ |
0 | 982 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
983 "Prints warnings for stalled SpinLocks") \ | |
984 \ | |
985 product(bool, RegisterFinalizersAtInit, true, \ | |
986 "Register finalizable objects at end of Object.<init> or " \ | |
1064 | 987 "after allocation") \ |
0 | 988 \ |
989 develop(bool, RegisterReferences, true, \ | |
990 "Tells whether the VM should register soft/weak/final/phantom " \ | |
991 "references") \ | |
992 \ | |
993 develop(bool, IgnoreRewrites, false, \ | |
994 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
995 "This is unsafe!") \ | |
996 \ | |
997 develop(bool, PrintCodeCacheExtension, false, \ | |
998 "Print extension of code cache") \ | |
999 \ | |
1000 develop(bool, UsePrivilegedStack, true, \ | |
1001 "Enable the security JVM functions") \ | |
1002 \ | |
1003 develop(bool, ProtectionDomainVerification, true, \ | |
1004 "Verifies protection domain before resolution in system " \ | |
1005 "dictionary") \ | |
1006 \ | |
1007 product(bool, ClassUnloading, true, \ | |
1008 "Do unloading of classes") \ | |
1009 \ | |
1010 develop(bool, DisableStartThread, false, \ | |
1011 "Disable starting of additional Java threads " \ | |
1012 "(for debugging only)") \ | |
1013 \ | |
1014 develop(bool, MemProfiling, false, \ | |
1015 "Write memory usage profiling to log file") \ | |
1016 \ | |
1017 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
1018 "Prints the system dictionary at exit") \ | |
1019 \ | |
4864
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1020 experimental(intx, PredictedLoadedClassCount, 0, \ |
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1021 "Experimental: Tune loaded class cache starting size.") \ |
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1022 \ |
0 | 1023 diagnostic(bool, UnsyncloadClass, false, \ |
514 | 1024 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
1025 "class loader must call VM synchronized for findClass " \ | |
1026 "and defineClass.") \ | |
1027 \ | |
1028 product(bool, AlwaysLockClassLoader, false, \ | |
1029 "Require the VM to acquire the class loader lock before calling " \ | |
1030 "loadClass() even for class loaders registering " \ | |
1064 | 1031 "as parallel capable") \ |
514 | 1032 \ |
1033 product(bool, AllowParallelDefineClass, false, \ | |
1034 "Allow parallel defineClass requests for class loaders " \ | |
1064 | 1035 "registering as parallel capable") \ |
514 | 1036 \ |
1037 product(bool, MustCallLoadClassInternal, false, \ | |
1064 | 1038 "Call loadClassInternal() rather than loadClass()") \ |
0 | 1039 \ |
1040 product_pd(bool, DontYieldALot, \ | |
1041 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
1042 \ | |
1043 product_pd(bool, ConvertSleepToYield, \ | |
1044 "Converts sleep(0) to thread yield " \ | |
1045 "(may be off for SOLARIS to improve GUI)") \ | |
1046 \ | |
1047 product(bool, ConvertYieldToSleep, false, \ | |
1048 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
1049 "behavior (SOLARIS only)") \ | |
1050 \ | |
1051 product(bool, UseBoundThreads, true, \ | |
1052 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
1053 \ | |
1054 develop(bool, UseDetachedThreads, true, \ | |
1055 "Use detached threads that are recycled upon termination " \ | |
1056 "(for SOLARIS only)") \ | |
1057 \ | |
1058 product(bool, UseLWPSynchronization, true, \ | |
1059 "Use LWP-based instead of libthread-based synchronization " \ | |
1060 "(SPARC only)") \ | |
1061 \ | |
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1062 product(ccstr, SyncKnobs, NULL, \ |
0 | 1063 "(Unstable) Various monitor synchronization tunables") \ |
1064 \ | |
1065 product(intx, EmitSync, 0, \ | |
1066 "(Unsafe,Unstable) " \ | |
1067 " Controls emission of inline sync fast-path code") \ | |
1068 \ | |
1587 | 1069 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
1070 \ | |
1071 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
1072 \ | |
0 | 1073 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ |
1074 \ | |
1075 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
1076 \ | |
1077 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
1078 \ | |
7587 | 1079 product(intx, hashCode, 5, \ |
0 | 1080 "(Unstable) select hashCode generation algorithm" ) \ |
1081 \ | |
1082 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
1083 "(Unstable, Linux-specific)" \ | |
1084 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
1085 \ | |
1064 | 1086 product(bool, FilterSpuriousWakeups, true, \ |
1087 "Prevent spurious or premature wakeups from object.wait " \ | |
1088 "(Solaris only)") \ | |
0 | 1089 \ |
1090 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
1091 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
1092 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
1093 \ | |
1094 develop(bool, UsePthreads, false, \ | |
1095 "Use pthread-based instead of libthread-based synchronization " \ | |
1096 "(SPARC only)") \ | |
1097 \ | |
1098 product(bool, AdjustConcurrency, false, \ | |
1099 "call thr_setconcurrency at thread create time to avoid " \ | |
1100 "LWP starvation on MP systems (For Solaris Only)") \ | |
1101 \ | |
1102 product(bool, ReduceSignalUsage, false, \ | |
1103 "Reduce the use of OS signals in Java and/or the VM") \ | |
1104 \ | |
1105 develop_pd(bool, ShareVtableStubs, \ | |
1106 "Share vtable stubs (smaller code but worse branch prediction") \ | |
1107 \ | |
1108 develop(bool, LoadLineNumberTables, true, \ | |
1109 "Tells whether the class file parser loads line number tables") \ | |
1110 \ | |
1111 develop(bool, LoadLocalVariableTables, true, \ | |
1112 "Tells whether the class file parser loads local variable tables")\ | |
1113 \ | |
1114 develop(bool, LoadLocalVariableTypeTables, true, \ | |
1115 "Tells whether the class file parser loads local variable type tables")\ | |
1116 \ | |
1117 product(bool, AllowUserSignalHandlers, false, \ | |
1118 "Do not complain if the application installs signal handlers " \ | |
1119 "(Solaris & Linux only)") \ | |
1120 \ | |
1121 product(bool, UseSignalChaining, true, \ | |
1122 "Use signal-chaining to invoke signal handlers installed " \ | |
1123 "by the application (Solaris & Linux only)") \ | |
1124 \ | |
1125 product(bool, UseAltSigs, false, \ | |
1126 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
1064 | 1127 "internal signals (Solaris only)") \ |
0 | 1128 \ |
1129 product(bool, AllowJNIEnvProxy, false, \ | |
1130 "Allow JNIEnv proxies for jdbx") \ | |
1131 \ | |
1132 product(bool, JNIDetachReleasesMonitors, true, \ | |
1133 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
1134 \ | |
1135 product(bool, RestoreMXCSROnJNICalls, false, \ | |
1136 "Restore MXCSR when returning from JNI calls") \ | |
1137 \ | |
1138 product(bool, CheckJNICalls, false, \ | |
1139 "Verify all arguments to JNI calls") \ | |
1140 \ | |
1141 product(bool, UseFastJNIAccessors, true, \ | |
1142 "Use optimized versions of Get<Primitive>Field") \ | |
1143 \ | |
1144 product(bool, EagerXrunInit, false, \ | |
1145 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
1146 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
1147 \ | |
1148 product(bool, PreserveAllAnnotations, false, \ | |
1149 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
1150 \ | |
1151 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
1152 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
1153 \ | |
1154 product(bool, LazyBootClassLoader, true, \ | |
1155 "Enable/disable lazy opening of boot class path entries") \ | |
1156 \ | |
405 | 1157 product(bool, UseXMMForArrayCopy, false, \ |
1158 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
1159 \ | |
0 | 1160 product(intx, FieldsAllocationStyle, 1, \ |
1366
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1161 "0 - type based with oops first, 1 - with oops last, " \ |
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1162 "2 - oops in super and sub classes are together") \ |
0 | 1163 \ |
1164 product(bool, CompactFields, true, \ | |
1165 "Allocate nonstatic fields in gaps between previous fields") \ | |
1166 \ | |
7587 | 1167 notproduct(bool, PrintFieldLayout, false, \ |
1168 "Print field layout for each class") \ | |
1169 \ | |
1170 product(intx, ContendedPaddingWidth, 128, \ | |
1171 "How many bytes to pad the fields/classes marked @Contended with")\ | |
1172 \ | |
1173 product(bool, EnableContended, true, \ | |
1174 "Enable @Contended annotation support") \ | |
1175 \ | |
1176 product(bool, RestrictContended, true, \ | |
1177 "Restrict @Contended to trusted classes") \ | |
1178 \ | |
0 | 1179 product(bool, UseBiasedLocking, true, \ |
1180 "Enable biased locking in JVM") \ | |
1181 \ | |
1182 product(intx, BiasedLockingStartupDelay, 4000, \ | |
1183 "Number of milliseconds to wait before enabling biased locking") \ | |
1184 \ | |
1185 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
1186 "Print statistics of biased locking in JVM") \ | |
1187 \ | |
1188 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
1189 "Threshold of number of revocations per type to try to " \ | |
1190 "rebias all objects in the heap of that type") \ | |
1191 \ | |
1192 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
1193 "Threshold of number of revocations per type to permanently " \ | |
1194 "revoke biases of all objects in the heap of that type") \ | |
1195 \ | |
1196 product(intx, BiasedLockingDecayTime, 25000, \ | |
1197 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
1198 "type after previous bulk rebias") \ | |
1199 \ | |
1200 /* tracing */ \ | |
1201 \ | |
1202 notproduct(bool, TraceRuntimeCalls, false, \ | |
1203 "Trace run-time calls") \ | |
1204 \ | |
1205 develop(bool, TraceJNICalls, false, \ | |
1206 "Trace JNI calls") \ | |
1207 \ | |
1208 notproduct(bool, TraceJVMCalls, false, \ | |
1209 "Trace JVM calls") \ | |
1210 \ | |
370
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1211 product(ccstr, TraceJVMTI, NULL, \ |
0 | 1212 "Trace flags for JVMTI functions and events") \ |
1213 \ | |
1214 /* This option can change an EMCP method into an obsolete method. */ \ | |
1215 /* This can affect tests that except specific methods to be EMCP. */ \ | |
1216 /* This option should be used with caution. */ \ | |
1217 product(bool, StressLdcRewrite, false, \ | |
1218 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
1219 \ | |
1220 product(intx, TraceRedefineClasses, 0, \ | |
1221 "Trace level for JVMTI RedefineClasses") \ | |
1222 \ | |
1574 | 1223 develop(bool, StressMethodComparator, false, \ |
1224 "run the MethodComparator on all loaded methods") \ | |
1225 \ | |
0 | 1226 /* change to false by default sometime after Mustang */ \ |
1227 product(bool, VerifyMergedCPBytecodes, true, \ | |
1228 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
1229 \ | |
1230 develop(bool, TraceJNIHandleAllocation, false, \ | |
1231 "Trace allocation/deallocation of JNI handle blocks") \ | |
1232 \ | |
1233 develop(bool, TraceThreadEvents, false, \ | |
1234 "Trace all thread events") \ | |
1235 \ | |
1236 develop(bool, TraceBytecodes, false, \ | |
1237 "Trace bytecode execution") \ | |
1238 \ | |
1239 develop(bool, TraceClassInitialization, false, \ | |
1240 "Trace class initialization") \ | |
1241 \ | |
1242 develop(bool, TraceExceptions, false, \ | |
1243 "Trace exceptions") \ | |
1244 \ | |
1245 develop(bool, TraceICs, false, \ | |
1246 "Trace inline cache changes") \ | |
1247 \ | |
1248 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
1249 "Trace method invocation counter overflow") \ | |
1250 \ | |
1251 develop(bool, TraceInlineCacheClearing, false, \ | |
1252 "Trace clearing of inline caches in nmethods") \ | |
1253 \ | |
1254 develop(bool, TraceDependencies, false, \ | |
1255 "Trace dependencies") \ | |
1256 \ | |
1257 develop(bool, VerifyDependencies, trueInDebug, \ | |
1258 "Exercise and verify the compilation dependency mechanism") \ | |
1259 \ | |
1260 develop(bool, TraceNewOopMapGeneration, false, \ | |
1261 "Trace OopMapGeneration") \ | |
1262 \ | |
1263 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
1264 "Trace OopMapGeneration: print detailed cell states") \ | |
1265 \ | |
1266 develop(bool, TimeOopMap, false, \ | |
1267 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
1268 \ | |
1269 develop(bool, TimeOopMap2, false, \ | |
1270 "Time calls to GenerateOopMap::compute_map() individually") \ | |
1271 \ | |
1272 develop(bool, TraceMonitorMismatch, false, \ | |
1273 "Trace monitor matching failures during OopMapGeneration") \ | |
1274 \ | |
1275 develop(bool, TraceOopMapRewrites, false, \ | |
1276 "Trace rewritting of method oops during oop map generation") \ | |
1277 \ | |
1278 develop(bool, TraceSafepoint, false, \ | |
1279 "Trace safepoint operations") \ | |
1280 \ | |
1281 develop(bool, TraceICBuffer, false, \ | |
1282 "Trace usage of IC buffer") \ | |
1283 \ | |
1284 develop(bool, TraceCompiledIC, false, \ | |
1285 "Trace changes of compiled IC") \ | |
1286 \ | |
1287 notproduct(bool, TraceZapDeadLocals, false, \ | |
1288 "Trace zapping dead locals") \ | |
1289 \ | |
1290 develop(bool, TraceStartupTime, false, \ | |
1291 "Trace setup time") \ | |
1292 \ | |
1293 develop(bool, TraceProtectionDomainVerification, false, \ | |
1294 "Trace protection domain verifcation") \ | |
1295 \ | |
1296 develop(bool, TraceClearedExceptions, false, \ | |
1297 "Prints when an exception is forcibly cleared") \ | |
1298 \ | |
1299 product(bool, TraceClassResolution, false, \ | |
1300 "Trace all constant pool resolutions (for debugging)") \ | |
1301 \ | |
1302 product(bool, TraceBiasedLocking, false, \ | |
1303 "Trace biased locking in JVM") \ | |
1304 \ | |
1305 product(bool, TraceMonitorInflation, false, \ | |
1306 "Trace monitor inflation in JVM") \ | |
1307 \ | |
1308 /* gc */ \ | |
1309 \ | |
1310 product(bool, UseSerialGC, false, \ | |
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1311 "Use the serial garbage collector") \ |
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1312 \ |
1193
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1313 product(bool, UseG1GC, false, \ |
342
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1314 "Use the Garbage-First garbage collector") \ |
0 | 1315 \ |
1316 product(bool, UseParallelGC, false, \ | |
1317 "Use the Parallel Scavenge garbage collector") \ | |
1318 \ | |
1319 product(bool, UseParallelOldGC, false, \ | |
1320 "Use the Parallel Old garbage collector") \ | |
1321 \ | |
1322 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
1323 "How often should we maximally compact the heap (not allowing " \ | |
1324 "any dead space)") \ | |
1325 \ | |
1326 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
1327 "The collection count for the first maximum compaction") \ | |
1328 \ | |
1329 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
1330 "In the Parallel Old garbage collector maximum compaction for " \ | |
1331 "a system GC") \ | |
1332 \ | |
1333 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
1334 "The mean used by the par compact dead wood" \ | |
1335 "limiter (a number between 0-100).") \ | |
1336 \ | |
1337 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
1338 "The standard deviation used by the par compact dead wood" \ | |
1339 "limiter (a number between 0-100).") \ | |
1340 \ | |
1341 product(uintx, ParallelGCThreads, 0, \ | |
1342 "Number of parallel threads parallel gc will use") \ | |
1343 \ | |
4095
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1344 product(bool, UseDynamicNumberOfGCThreads, false, \ |
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|
1345 "Dynamically choose the number of parallel threads " \ |
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|
1346 "parallel gc will use") \ |
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|
1347 \ |
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1348 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
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1349 "Force dynamic selection of the number of" \ |
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1350 "parallel threads parallel gc will use to aid debugging") \ |
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1351 \ |
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1352 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
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1353 "Size of heap (bytes) per GC thread used in calculating the " \ |
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1354 "number of GC threads") \ |
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1355 \ |
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1356 product(bool, TraceDynamicGCThreads, false, \ |
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1357 "Trace the dynamic GC thread usage") \ |
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1358 \ |
483
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1359 develop(bool, ParallelOldGCSplitALot, false, \ |
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diff
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|
1360 "Provoke splitting (copying data from a young gen space to" \ |
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|
1361 "multiple destination spaces)") \ |
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481
diff
changeset
|
1362 \ |
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481
diff
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|
1363 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
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parents:
481
diff
changeset
|
1364 "How often to provoke splitting a young gen space") \ |
0 | 1365 \ |
1284 | 1366 product(uintx, ConcGCThreads, 0, \ |
1367 "Number of threads concurrent gc will use") \ | |
342
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diff
changeset
|
1368 \ |
0 | 1369 product(uintx, YoungPLABSize, 4096, \ |
1370 "Size of young gen promotion labs (in HeapWords)") \ | |
1371 \ | |
1372 product(uintx, OldPLABSize, 1024, \ | |
1373 "Size of old gen promotion labs (in HeapWords)") \ | |
1374 \ | |
1375 product(uintx, GCTaskTimeStampEntries, 200, \ | |
1376 "Number of time stamp entries per gc worker thread") \ | |
1377 \ | |
1378 product(bool, AlwaysTenure, false, \ | |
1379 "Always tenure objects in eden. (ParallelGC only)") \ | |
1380 \ | |
1381 product(bool, NeverTenure, false, \ | |
1064 | 1382 "Never tenure objects in eden, May tenure on overflow " \ |
1383 "(ParallelGC only)") \ | |
0 | 1384 \ |
1385 product(bool, ScavengeBeforeFullGC, true, \ | |
1064 | 1386 "Scavenge youngest generation before each full GC, " \ |
1387 "used with UseParallelGC") \ | |
0 | 1388 \ |
1389 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
1390 "Allow scavenges to occur when to_space contains objects.") \ | |
1391 \ | |
1392 product(bool, UseConcMarkSweepGC, false, \ | |
1393 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
1394 \ | |
1395 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
1396 "A System.gc() request invokes a concurrent collection;" \ | |
1397 " (effective only when UseConcMarkSweepGC)") \ | |
1398 \ | |
1399 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
1064 | 1400 "A System.gc() request invokes a concurrent collection and " \ |
1401 "also unloads classes during such a concurrent gc cycle " \ | |
1402 "(effective only when UseConcMarkSweepGC)") \ | |
0 | 1403 \ |
1520
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diff
changeset
|
1404 product(bool, GCLockerInvokesConcurrent, false, \ |
bb843ebc7c55
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diff
changeset
|
1405 "The exit of a JNI CS necessitating a scavenge also" \ |
bb843ebc7c55
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ysr
parents:
1518
diff
changeset
|
1406 " kicks off a bkgrd concurrent collection") \ |
bb843ebc7c55
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ysr
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1518
diff
changeset
|
1407 \ |
1991
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
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diff
changeset
|
1408 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
016a3628c885
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tonyp
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diff
changeset
|
1409 "How much the GC can expand the eden by while the GC locker " \ |
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
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diff
changeset
|
1410 "is active (as a percentage)") \ |
016a3628c885
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tonyp
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diff
changeset
|
1411 \ |
8853
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diff
changeset
|
1412 diagnostic(intx, GCLockerRetryAllocationCount, 2, \ |
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mgerdin
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diff
changeset
|
1413 "Number of times to retry allocations when" \ |
2e093b564241
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mgerdin
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diff
changeset
|
1414 " blocked by the GC locker") \ |
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|
1415 \ |
0 | 1416 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
1417 "Use Adaptive Free Lists in the CMS generation") \ | |
1418 \ | |
1419 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
1420 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
1421 \ | |
1422 develop(bool, RotateCMSCollectionTypes, false, \ | |
1423 "Rotate the CMS collections among concurrent and STW") \ | |
1424 \ | |
1425 product(bool, UseCMSBestFit, true, \ | |
1426 "Use CMS best fit allocation strategy") \ | |
1427 \ | |
1428 product(bool, UseCMSCollectionPassing, true, \ | |
1429 "Use passing of collection from background to foreground") \ | |
1430 \ | |
1431 product(bool, UseParNewGC, false, \ | |
1432 "Use parallel threads in the new generation.") \ | |
1433 \ | |
1434 product(bool, ParallelGCVerbose, false, \ | |
1435 "Verbose output for parallel GC.") \ | |
1436 \ | |
10287
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1437 product(uintx, ParallelGCBufferWastePct, 10, \ |
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1438 "Wasted fraction of parallel allocation buffer.") \ |
0 | 1439 \ |
3357
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|
1440 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
fc2b798ab316
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changeset
|
1441 "Retain parallel allocation buffers across scavenges; " \ |
fc2b798ab316
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changeset
|
1442 " -- disabled because this currently conflicts with " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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diff
changeset
|
1443 " parallel card scanning under certain conditions ") \ |
0 | 1444 \ |
10287
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|
1445 product(uintx, TargetPLABWastePct, 10, \ |
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1446 "Target wasted space in last buffer as percent of overall " \ |
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|
1447 "allocation") \ |
0 | 1448 \ |
1449 product(uintx, PLABWeight, 75, \ | |
1450 "Percentage (0-100) used to weight the current sample when" \ | |
1451 "computing exponentially decaying average for ResizePLAB.") \ | |
1452 \ | |
1453 product(bool, ResizePLAB, true, \ | |
1454 "Dynamically resize (survivor space) promotion labs") \ | |
1455 \ | |
1456 product(bool, PrintPLAB, false, \ | |
1457 "Print (survivor space) promotion labs sizing decisions") \ | |
1458 \ | |
1459 product(intx, ParGCArrayScanChunk, 50, \ | |
1460 "Scan a subset and push remainder, if array is bigger than this") \ | |
1461 \ | |
695 | 1462 product(bool, ParGCUseLocalOverflow, false, \ |
1463 "Instead of a global overflow list, use local overflow stacks") \ | |
1464 \ | |
679
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diff
changeset
|
1465 product(bool, ParGCTrimOverflow, true, \ |
695 | 1466 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
679
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diff
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|
1467 \ |
534 | 1468 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
1469 "Whether we should simulate work queue overflow in ParNew") \ | |
1470 \ | |
1471 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
1064 | 1472 "An `interval' counter that determines how frequently " \ |
1473 "we simulate overflow; a smaller number increases frequency") \ | |
534 | 1474 \ |
1475 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
0 | 1476 "The desired number of objects to claim from the overflow list") \ |
1477 \ | |
4728
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|
1478 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
3357
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changeset
|
1479 "The number of strides per worker thread that we divide up the " \ |
fc2b798ab316
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changeset
|
1480 "card table scanning work into") \ |
fc2b798ab316
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|
1481 \ |
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changeset
|
1482 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
fc2b798ab316
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changeset
|
1483 "The number of cards in each chunk of the parallel chunks used " \ |
fc2b798ab316
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ysr
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changeset
|
1484 "during card table scanning") \ |
fc2b798ab316
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changeset
|
1485 \ |
fc2b798ab316
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ysr
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|
1486 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
0 | 1487 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
1488 "parallel GC.") \ | |
1489 \ | |
1145
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1490 product(uintx, OldPLABWeight, 50, \ |
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|
1491 "Percentage (0-100) used to weight the current sample when" \ |
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|
1492 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
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|
1493 \ |
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|
1494 product(bool, ResizeOldPLAB, true, \ |
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|
1495 "Dynamically resize (old gen) promotion labs") \ |
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|
1496 \ |
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|
1497 product(bool, PrintOldPLAB, false, \ |
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|
1498 "Print (old gen) promotion labs sizing decisions") \ |
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|
1499 \ |
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|
1500 product(uintx, CMSOldPLABMin, 16, \ |
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|
1501 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
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|
1502 \ |
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|
1503 product(uintx, CMSOldPLABMax, 1024, \ |
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|
1504 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
e018e6884bd8
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|
1505 \ |
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|
1506 product(uintx, CMSOldPLABNumRefills, 4, \ |
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|
1507 "Nominal number of refills of CMS gen promotion lab cache" \ |
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changeset
|
1508 " per worker per block size") \ |
e018e6884bd8
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diff
changeset
|
1509 \ |
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|
1510 product(bool, CMSOldPLABResizeQuicker, false, \ |
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changeset
|
1511 "Whether to react on-the-fly during a scavenge to a sudden" \ |
e018e6884bd8
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changeset
|
1512 " change in block demand rate") \ |
e018e6884bd8
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diff
changeset
|
1513 \ |
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|
1514 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
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|
1515 "The tolerance of the phase-change detector for on-the-fly" \ |
e018e6884bd8
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diff
changeset
|
1516 " PLAB resizing during a scavenge") \ |
e018e6884bd8
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diff
changeset
|
1517 \ |
e018e6884bd8
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|
1518 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
e018e6884bd8
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|
1519 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
e018e6884bd8
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|
1520 " during a scavenge") \ |
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|
1521 \ |
0 | 1522 product(bool, AlwaysPreTouch, false, \ |
1523 "It forces all freshly committed pages to be pre-touched.") \ | |
1524 \ | |
10287
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1525 product_pd(uintx, CMSYoungGenPerWorker, \ |
2368
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6896099: Integrate CMS heap ergo with default heap sizing ergo
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|
1526 "The maximum size of young gen chosen by default per GC worker " \ |
1064 | 1527 "thread available") \ |
0 | 1528 \ |
1529 product(bool, CMSIncrementalMode, false, \ | |
1530 "Whether CMS GC should operate in \"incremental\" mode") \ | |
1531 \ | |
1532 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
1533 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
1534 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
1535 "value") \ | |
1536 \ | |
1537 product(bool, CMSIncrementalPacing, true, \ | |
1538 "Whether the CMS incremental mode duty cycle should be " \ | |
1539 "automatically adjusted") \ | |
1540 \ | |
1541 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
1064 | 1542 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
1543 "enabled (a percentage, 0-100)") \ | |
0 | 1544 \ |
1545 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
1064 | 1546 "Percentage (0-100) used to add conservatism when computing the " \ |
1547 "duty cycle") \ | |
0 | 1548 \ |
1549 product(uintx, CMSIncrementalOffset, 0, \ | |
1550 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
1064 | 1551 " is shifted to the right within the period between young GCs") \ |
0 | 1552 \ |
1145
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|
1553 product(uintx, CMSExpAvgFactor, 50, \ |
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|
1554 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
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|
1555 "computing exponential averages for CMS statistics.") \ |
e018e6884bd8
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|
1556 \ |
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|
1557 product(uintx, CMS_FLSWeight, 75, \ |
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|
1558 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
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|
1559 "computing exponentially decating averages for CMS FLS statistics.") \ |
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|
1560 \ |
e018e6884bd8
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|
1561 product(uintx, CMS_FLSPadding, 1, \ |
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|
1562 "The multiple of deviation from mean to use for buffering" \ |
0 | 1563 "against volatility in free list demand.") \ |
1564 \ | |
1565 product(uintx, FLSCoalescePolicy, 2, \ | |
1566 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
1567 \ | |
1145
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|
1568 product(bool, FLSAlwaysCoalesceLarge, false, \ |
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|
1569 "CMS: Larger free blocks are always available for coalescing") \ |
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|
1570 \ |
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1571 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
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|
1572 "CMS: the smaller the percentage the greater the coalition force")\ |
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|
1573 \ |
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|
1574 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
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changeset
|
1575 "CMS: the factor by which to inflate estimated demand of small" \ |
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changeset
|
1576 " block sizes to prevent coalescing with an adjoining block") \ |
e018e6884bd8
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|
1577 \ |
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|
1578 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
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|
1579 "CMS: the factor by which to inflate estimated demand of large" \ |
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1580 " block sizes to prevent coalescing with an adjoining block") \ |
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1581 \ |
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1582 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
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1583 "CMS: the factor by which to inflate estimated demand of small" \ |
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1584 " block sizes to prevent splitting to supply demand for smaller" \ |
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1585 " blocks") \ |
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1586 \ |
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1587 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
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1588 "CMS: the factor by which to inflate estimated demand of large" \ |
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1589 " block sizes to prevent splitting to supply demand for smaller" \ |
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1590 " blocks") \ |
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1591 \ |
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1592 product(bool, CMSExtrapolateSweep, false, \ |
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1593 "CMS: cushion for block demand during sweep") \ |
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1594 \ |
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1595 product(uintx, CMS_SweepWeight, 75, \ |
1064 | 1596 "Percentage (0-100) used to weight the current sample when " \ |
1597 "computing exponentially decaying average for inter-sweep " \ | |
1598 "duration") \ | |
0 | 1599 \ |
1145
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1600 product(uintx, CMS_SweepPadding, 1, \ |
1064 | 1601 "The multiple of deviation from mean to use for buffering " \ |
0 | 1602 "against volatility in inter-sweep duration.") \ |
1603 \ | |
1604 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
1605 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
1064 | 1606 "duration exceeds this threhold in milliseconds") \ |
0 | 1607 \ |
1608 develop(bool, CMSTraceIncrementalMode, false, \ | |
1609 "Trace CMS incremental mode") \ | |
1610 \ | |
1611 develop(bool, CMSTraceIncrementalPacing, false, \ | |
1612 "Trace CMS incremental mode pacing computation") \ | |
1613 \ | |
1614 develop(bool, CMSTraceThreadState, false, \ | |
1615 "Trace the CMS thread state (enable the trace_state() method)") \ | |
1616 \ | |
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1617 product(bool, CMSClassUnloadingEnabled, true, \ |
0 | 1618 "Whether class unloading enabled when using CMS GC") \ |
1619 \ | |
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1620 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
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1621 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
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1622 " for which classes may not be unloaded") \ |
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1623 \ |
0 | 1624 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
1625 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
1626 \ | |
1627 product(bool, UseCMSCompactAtFullCollection, true, \ | |
1628 "Use mark sweep compact at full collections") \ | |
1629 \ | |
1630 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
1631 "Number of CMS full collection done before compaction if > 0") \ | |
1632 \ | |
1633 develop(intx, CMSDictionaryChoice, 0, \ | |
1634 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
1635 \ | |
1636 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
6818 | 1637 "Replenish an indexed free list with this number of chunks") \ |
0 | 1638 \ |
1145
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1639 product(bool, CMSReplenishIntermediate, true, \ |
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1640 "Replenish all intermediate free-list caches") \ |
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1641 \ |
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1642 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
1777
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1643 "When satisfying batched demand, split blocks from the " \ |
1145
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1644 "IndexedFreeList whose size is a multiple of requested size") \ |
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1645 \ |
0 | 1646 product(bool, CMSLoopWarn, false, \ |
1647 "Warn in case of excessive CMS looping") \ | |
1648 \ | |
1649 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
1650 "Whether preserved marks should be restored early") \ | |
1651 \ | |
1284 | 1652 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
1653 "Size of marking stack") \ | |
1654 \ | |
1655 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
1656 "Max size of marking stack") \ | |
0 | 1657 \ |
1658 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
1659 "Whether we should simulate frequent marking stack / work queue" \ | |
1660 " overflow") \ | |
1661 \ | |
534 | 1662 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
1663 "An `interval' counter that determines how frequently" \ | |
0 | 1664 " we simulate overflow; a smaller number increases frequency") \ |
1665 \ | |
1666 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
1667 "(Temporary, subject to experimentation)" \ | |
1668 "Maximum number of abortable preclean iterations, if > 0") \ | |
1669 \ | |
1670 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
1671 "(Temporary, subject to experimentation)" \ | |
1672 "Maximum time in abortable preclean in ms") \ | |
1673 \ | |
1674 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
1675 "(Temporary, subject to experimentation)" \ | |
1676 "Nominal minimum work per abortable preclean iteration") \ | |
1677 \ | |
1887
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1678 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
0 | 1679 "(Temporary, subject to experimentation)" \ |
1680 " Time that we sleep between iterations when not given" \ | |
1681 " enough work per iteration") \ | |
1682 \ | |
1683 product(uintx, CMSRescanMultiple, 32, \ | |
1684 "Size (in cards) of CMS parallel rescan task") \ | |
1685 \ | |
1686 product(uintx, CMSConcMarkMultiple, 32, \ | |
1687 "Size (in cards) of CMS concurrent MT marking task") \ | |
1688 \ | |
1689 product(bool, CMSAbortSemantics, false, \ | |
1690 "Whether abort-on-overflow semantics is implemented") \ | |
1691 \ | |
11975 | 1692 product(bool, CMSParallelInitialMarkEnabled, true, \ |
1693 "Use the parallel initial mark.") \ | |
1694 \ | |
0 | 1695 product(bool, CMSParallelRemarkEnabled, true, \ |
1696 "Whether parallel remark enabled (only if ParNewGC)") \ | |
1697 \ | |
1698 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
1699 "Whether parallel remark of survivor space" \ | |
1700 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
1701 \ | |
1702 product(bool, CMSPLABRecordAlways, true, \ | |
1703 "Whether to always record survivor space PLAB bdries" \ | |
1704 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
1705 \ | |
11973
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1706 product(bool, CMSEdenChunksRecordAlways, true, \ |
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1707 "Whether to always record eden chunks used for " \ |
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1708 "the parallel initial mark or remark of eden" ) \ |
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1709 \ |
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1710 product(bool, CMSPrintEdenSurvivorChunks, false, \ |
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1711 "Print the eden and the survivor chunks used for the parallel " \ |
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1712 "initial mark or remark of the eden/survivor spaces") \ |
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1713 \ |
0 | 1714 product(bool, CMSConcurrentMTEnabled, true, \ |
1715 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
1716 \ | |
1717 product(bool, CMSPrecleaningEnabled, true, \ | |
1718 "Whether concurrent precleaning enabled") \ | |
1719 \ | |
1720 product(uintx, CMSPrecleanIter, 3, \ | |
1721 "Maximum number of precleaning iteration passes") \ | |
1722 \ | |
1723 product(uintx, CMSPrecleanNumerator, 2, \ | |
1724 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1725 " ratio") \ | |
1726 \ | |
1727 product(uintx, CMSPrecleanDenominator, 3, \ | |
1728 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1729 " ratio") \ | |
1730 \ | |
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1731 product(bool, CMSPrecleanRefLists1, true, \ |
0 | 1732 "Preclean ref lists during (initial) preclean phase") \ |
1733 \ | |
1734 product(bool, CMSPrecleanRefLists2, false, \ | |
1735 "Preclean ref lists during abortable preclean phase") \ | |
1736 \ | |
1737 product(bool, CMSPrecleanSurvivors1, false, \ | |
1738 "Preclean survivors during (initial) preclean phase") \ | |
1739 \ | |
1740 product(bool, CMSPrecleanSurvivors2, true, \ | |
1741 "Preclean survivors during abortable preclean phase") \ | |
1742 \ | |
1743 product(uintx, CMSPrecleanThreshold, 1000, \ | |
1744 "Don't re-iterate if #dirty cards less than this") \ | |
1745 \ | |
1746 product(bool, CMSCleanOnEnter, true, \ | |
1747 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
1748 \ | |
1749 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
1750 "Choose variant (1,2) of verification following remark") \ | |
1751 \ | |
1752 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
1753 "If Eden used is below this value, don't try to schedule remark") \ | |
1754 \ | |
1755 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
1756 "The Eden occupancy % at which to try and schedule remark pause") \ | |
1757 \ | |
1758 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
1759 "Start sampling Eden top at least before yg occupancy reaches" \ | |
1760 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
1761 \ | |
1762 product(uintx, CMSSamplingGrain, 16*K, \ | |
1763 "The minimum distance between eden samples for CMS (see above)") \ | |
1764 \ | |
1765 product(bool, CMSScavengeBeforeRemark, false, \ | |
1766 "Attempt scavenge before the CMS remark step") \ | |
1767 \ | |
1768 develop(bool, CMSTraceSweeper, false, \ | |
1769 "Trace some actions of the CMS sweeper") \ | |
1770 \ | |
1771 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
1772 "Don't drain below this size per parallel worker/thief") \ | |
1773 \ | |
1887
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1774 manageable(intx, CMSWaitDuration, 2000, \ |
0 | 1775 "Time in milliseconds that CMS thread waits for young GC") \ |
1776 \ | |
8679
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1777 develop(uintx, CMSCheckInterval, 1000, \ |
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1778 "Interval in milliseconds that CMS thread checks if it " \ |
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1779 "should start a collection cycle") \ |
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1780 \ |
0 | 1781 product(bool, CMSYield, true, \ |
1782 "Yield between steps of concurrent mark & sweep") \ | |
1783 \ | |
1784 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
1785 "Bitmap operations should process at most this many bits" \ | |
1786 "between yields") \ | |
1787 \ | |
1145
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1788 product(bool, CMSDumpAtPromotionFailure, false, \ |
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1789 "Dump useful information about the state of the CMS old " \ |
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|
1790 " generation upon a promotion failure.") \ |
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|
1791 \ |
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1792 product(bool, CMSPrintChunksInDump, false, \ |
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1793 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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|
1794 " more detailed information about the free chunks.") \ |
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|
1795 \ |
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1796 product(bool, CMSPrintObjectsInDump, false, \ |
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1797 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1798 " more detailed information about the allocated objects.") \ |
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1799 \ |
0 | 1800 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
1801 "Verify that all refs across the FLS boundary " \ | |
1802 " are to valid objects") \ | |
1803 \ | |
1804 diagnostic(bool, FLSVerifyLists, false, \ | |
1805 "Do lots of (expensive) FreeListSpace verification") \ | |
1806 \ | |
1807 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
1808 "Do lots of (expensive) FLS index table verification") \ | |
1809 \ | |
1810 develop(bool, FLSVerifyDictionary, false, \ | |
1811 "Do lots of (expensive) FLS dictionary verification") \ | |
1812 \ | |
1813 develop(bool, VerifyBlockOffsetArray, false, \ | |
1814 "Do (expensive!) block offset array verification") \ | |
1815 \ | |
3321
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1816 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
0 | 1817 "Maintain _unallocated_block in BlockOffsetArray" \ |
1818 " (currently applicable only to CMS collector)") \ | |
1819 \ | |
1820 develop(bool, TraceCMSState, false, \ | |
1821 "Trace the state of the CMS collection") \ | |
1822 \ | |
1823 product(intx, RefDiscoveryPolicy, 0, \ | |
1824 "Whether reference-based(0) or referent-based(1)") \ | |
1825 \ | |
1826 product(bool, ParallelRefProcEnabled, false, \ | |
1827 "Enable parallel reference processing whenever possible") \ | |
1828 \ | |
1829 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
1830 "Enable balancing of reference processing queues") \ | |
1831 \ | |
8035 | 1832 product(uintx, CMSTriggerRatio, 80, \ |
0 | 1833 "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
1064 | 1834 "allocated before a CMS collection cycle commences") \ |
0 | 1835 \ |
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1836 product(uintx, CMSBootstrapOccupancy, 50, \ |
0 | 1837 "Percentage CMS generation occupancy at which to " \ |
1064 | 1838 "initiate CMS collection for bootstrapping collection stats") \ |
0 | 1839 \ |
1840 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
1841 "Percentage CMS generation occupancy to start a CMS collection " \ | |
1064 | 1842 "cycle. A negative value means that CMSTriggerRatio is used") \ |
94
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1843 \ |
1283
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1844 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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|
1845 "Percentage of the (entire) heap occupancy to start a " \ |
8034
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1846 "concurrent GC cycle. It is used by GCs that trigger a " \ |
1283
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|
1847 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1848 "not just one of the generations (e.g., G1). A value of 0 " \ |
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1849 "denotes 'do constant GC cycles'.") \ |
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1850 \ |
0 | 1851 product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
1852 "Only use occupancy as a crierion for starting a CMS collection") \ | |
1853 \ | |
10287
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1854 product(uintx, CMSIsTooFullPercentage, 98, \ |
1064 | 1855 "An absolute ceiling above which CMS will always consider the " \ |
7461
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1856 "unloading of classes when class unloading is enabled") \ |
94
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1857 \ |
0 | 1858 develop(bool, CMSTestInFreeList, false, \ |
1859 "Check if the coalesced range is already in the " \ | |
1064 | 1860 "free lists as claimed") \ |
0 | 1861 \ |
1862 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
1863 "Check that all the garbage collected was returned to the " \ | |
1864 "free lists.") \ | |
1865 \ | |
1866 notproduct(bool, ScavengeALot, false, \ | |
1867 "Force scavenge at every Nth exit from the runtime system " \ | |
1868 "(N=ScavengeALotInterval)") \ | |
1869 \ | |
1870 develop(bool, FullGCALot, false, \ | |
1871 "Force full gc at every Nth exit from the runtime system " \ | |
1872 "(N=FullGCALotInterval)") \ | |
1873 \ | |
1874 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
1875 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
1876 \ | |
1145
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1877 product(bool, PrintPromotionFailure, false, \ |
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|
1878 "Print additional diagnostic information following " \ |
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1879 " promotion failure") \ |
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1880 \ |
0 | 1881 notproduct(bool, PromotionFailureALot, false, \ |
1882 "Use promotion failure handling on every youngest generation " \ | |
1883 "collection") \ | |
1884 \ | |
1885 develop(uintx, PromotionFailureALotCount, 1000, \ | |
1886 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
1887 "refill attempts (ParNew) or promotion attempts " \ | |
1888 "(other young collectors) ") \ | |
1889 \ | |
1890 develop(uintx, PromotionFailureALotInterval, 5, \ | |
1891 "Total collections between promotion failures alot") \ | |
1892 \ | |
10287
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1893 experimental(uintx, WorkStealingSleepMillis, 1, \ |
0 | 1894 "Sleep time when sleep is used for yields") \ |
1895 \ | |
2430 | 1896 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
0 | 1897 "Number of yields before a sleep is done during workstealing") \ |
1898 \ | |
1837
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1899 experimental(uintx, WorkStealingHardSpins, 4096, \ |
546
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1900 "Number of iterations in a spin loop between checks on " \ |
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1901 "time out of hard spin") \ |
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|
1902 \ |
1837
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1903 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
546
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1904 "Ratio of hard spins to calls to yield") \ |
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|
1905 \ |
1311
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|
1906 develop(uintx, ObjArrayMarkingStride, 512, \ |
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|
1907 "Number of ObjArray elements to push onto the marking stack" \ |
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1908 "before pushing a continuation entry") \ |
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|
1909 \ |
6725
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1910 develop(bool, MetadataAllocationFailALot, false, \ |
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1911 "Fail metadata allocations at intervals controlled by " \ |
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1912 "MetadataAllocationFailALotInterval") \ |
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1913 \ |
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1914 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ |
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|
1915 "metadata allocation failure alot interval") \ |
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|
1916 \ |
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1917 develop(bool, MetaDataDeallocateALot, false, \ |
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1918 "Deallocation bunches of metadata at intervals controlled by " \ |
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1919 "MetaDataAllocateALotInterval") \ |
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1920 \ |
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1921 develop(uintx, MetaDataDeallocateALotInterval, 100, \ |
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1922 "Metadata deallocation alot interval") \ |
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|
1923 \ |
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|
1924 develop(bool, TraceMetadataChunkAllocation, false, \ |
7461
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|
1925 "Trace chunk metadata allocations") \ |
6725
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|
1926 \ |
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|
1927 product(bool, TraceMetadataHumongousAllocation, false, \ |
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|
1928 "Trace humongous metadata allocations") \ |
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|
1929 \ |
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|
1930 develop(bool, TraceMetavirtualspaceAllocation, false, \ |
7461
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|
1931 "Trace virtual space metadata allocations") \ |
6725
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|
1932 \ |
3779 | 1933 notproduct(bool, ExecuteInternalVMTests, false, \ |
1934 "Enable execution of internal VM tests.") \ | |
1935 \ | |
0 | 1936 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
1937 \ | |
1938 product_pd(bool, ResizeTLAB, \ | |
1939 "Dynamically resize tlab size for threads") \ | |
1940 \ | |
1941 product(bool, ZeroTLAB, false, \ | |
1942 "Zero out the newly created TLAB") \ | |
1943 \ | |
342
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diff
changeset
|
1944 product(bool, FastTLABRefill, true, \ |
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diff
changeset
|
1945 "Use fast TLAB refill code") \ |
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diff
changeset
|
1946 \ |
0 | 1947 product(bool, PrintTLAB, false, \ |
1948 "Print various TLAB related information") \ | |
1949 \ | |
1950 product(bool, TLABStats, true, \ | |
1951 "Print various TLAB related information") \ | |
1952 \ | |
2192
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bobv
parents:
2177
diff
changeset
|
1953 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
1954 "Enable LowMemoryProtection")) \ |
b92c45f2bc75
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bobv
parents:
2177
diff
changeset
|
1955 \ |
0 | 1956 product_pd(bool, NeverActAsServerClassMachine, \ |
1957 "Never act like a server-class machine") \ | |
1958 \ | |
1959 product(bool, AlwaysActAsServerClassMachine, false, \ | |
1960 "Always act like a server-class machine") \ | |
1961 \ | |
1064 | 1962 product_pd(uint64_t, MaxRAM, \ |
1963 "Real memory size (in bytes) used to set maximum heap size") \ | |
1964 \ | |
1965 product(uintx, ErgoHeapSizeLimit, 0, \ | |
1966 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
1967 "MaxRAM / MaxRAMFraction") \ | |
1968 \ | |
1969 product(uintx, MaxRAMFraction, 4, \ | |
1970 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
1971 "size") \ | |
0 | 1972 \ |
1973 product(uintx, DefaultMaxRAMFraction, 4, \ | |
1064 | 1974 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
1975 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
1976 \ | |
1977 product(uintx, MinRAMFraction, 2, \ | |
1978 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
1979 "size on systems with small physical memory size") \ | |
1980 \ | |
1981 product(uintx, InitialRAMFraction, 64, \ | |
1982 "Fraction (1/n) of real memory used for initial heap size") \ | |
0 | 1983 \ |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
1984 develop(uintx, MaxVirtMemFraction, 2, \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
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|
1985 "Maximum fraction (1/n) of virtual memory used for ergonomically" \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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parents:
8853
diff
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|
1986 "determining maximum heap size") \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
1987 \ |
0 | 1988 product(bool, UseAutoGCSelectPolicy, false, \ |
1989 "Use automatic collection selection policy") \ | |
1990 \ | |
1991 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
1992 "Automatic GC selection pause threshhold in ms") \ | |
1993 \ | |
1994 product(bool, UseAdaptiveSizePolicy, true, \ | |
1995 "Use adaptive generation sizing policies") \ | |
1996 \ | |
1997 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
1998 "Use adaptive survivor sizing policies") \ | |
1999 \ | |
2000 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
2001 "Use adaptive young-old sizing policies at minor collections") \ | |
2002 \ | |
2003 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
2004 "Use adaptive young-old sizing policies at major collections") \ | |
2005 \ | |
2006 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
2007 "Use statistics from System.GC for adaptive size policy") \ | |
2008 \ | |
2009 product(bool, UseAdaptiveGCBoundary, false, \ | |
2010 "Allow young-old boundary to move") \ | |
2011 \ | |
2012 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
2013 "Trace young-old boundary moves") \ | |
2014 \ | |
2015 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
2016 "Resize the virtual spaces of the young or old generations") \ | |
2017 \ | |
2018 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
2019 "Policy for changeing generation size for throughput goals") \ | |
2020 \ | |
2021 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
2022 "Policy for changing generation size for pause goals") \ | |
2023 \ | |
2024 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
2025 "Adjust tenured generation to achive a minor pause goal") \ | |
2026 \ | |
2027 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
2028 "Adjust young generation to achive a major pause goal") \ | |
2029 \ | |
2030 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
2031 "Number of steps where heuristics is used before data is used") \ | |
2032 \ | |
2033 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
2034 "Number of collections before the adaptive sizing is started") \ | |
2035 \ | |
2036 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
2037 "Collection interval for printing information; zero means never") \ |
0 | 2038 \ |
2039 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
2040 "Use adaptive minimum footprint as a goal") \ | |
2041 \ | |
2042 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
2043 "Weight given to exponential resizing, between 0 and 100") \ | |
2044 \ | |
2045 product(uintx, AdaptiveTimeWeight, 25, \ | |
2046 "Weight given to time in adaptive policy, between 0 and 100") \ | |
2047 \ | |
2048 product(uintx, PausePadding, 1, \ | |
2049 "How much buffer to keep for pause time") \ | |
2050 \ | |
2051 product(uintx, PromotedPadding, 3, \ | |
2052 "How much buffer to keep for promotion failure") \ | |
2053 \ | |
2054 product(uintx, SurvivorPadding, 3, \ | |
2055 "How much buffer to keep for survivor overflow") \ | |
2056 \ | |
2057 product(uintx, ThresholdTolerance, 10, \ | |
2058 "Allowed collection cost difference between generations") \ | |
2059 \ | |
2060 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
1064 | 2061 "If collection costs are within margin, reduce both by full " \ |
2062 "delta") \ | |
0 | 2063 \ |
2064 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
2065 "Adaptive size percentage change in young generation") \ | |
2066 \ | |
2067 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
2068 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
2069 \ | |
2070 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
2071 "Decay factor to YoungedGenerationSizeSupplement") \ | |
2072 \ | |
2073 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
2074 "Adaptive size percentage change in tenured generation") \ | |
2075 \ | |
2076 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
2077 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
2078 \ | |
2079 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
2080 "Decay factor to TenuredGenerationSizeIncrement") \ | |
2081 \ | |
6818 | 2082 product(uintx, MaxGCPauseMillis, max_uintx, \ |
751 | 2083 "Adaptive size policy maximum GC pause time goal in msec, " \ |
2084 "or (G1 Only) the max. GC time per MMU time slice") \ | |
2085 \ | |
1610
79107c3a6bd5
6949307: G1: raise a vm error, do not core dump, if target pause time and target interval are inconsistent
tonyp
parents:
1589
diff
changeset
|
2086 product(uintx, GCPauseIntervalMillis, 0, \ |
751 | 2087 "Time slice for MMU specification") \ |
0 | 2088 \ |
2089 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
2090 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
2091 \ | |
2092 product(uintx, GCTimeRatio, 99, \ | |
2093 "Adaptive size policy application time to GC time ratio") \ | |
2094 \ | |
2095 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
2096 "Adaptive size scale down factor for shrinking") \ | |
2097 \ | |
2098 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
2099 "Adaptive size decays the major cost for long major intervals") \ | |
2100 \ | |
2101 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
2102 "Time scale over which major costs decay") \ | |
2103 \ | |
2104 product(uintx, MinSurvivorRatio, 3, \ | |
2105 "Minimum ratio of young generation/survivor space size") \ | |
2106 \ | |
2107 product(uintx, InitialSurvivorRatio, 8, \ | |
2108 "Initial ratio of eden/survivor space size") \ | |
2109 \ | |
2110 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
2111 "Estimate of footprint other than Java Heap") \ | |
2112 \ | |
2113 product(bool, UseGCOverheadLimit, true, \ | |
2114 "Use policy to limit of proportion of time spent in GC " \ | |
2115 "before an OutOfMemory error is thrown") \ | |
2116 \ | |
2117 product(uintx, GCTimeLimit, 98, \ | |
2118 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
2119 "error is thrown (used with GCHeapFreeLimit)") \ | |
2120 \ | |
2121 product(uintx, GCHeapFreeLimit, 2, \ | |
2122 "Minimum percentage of free space after a full GC before an " \ | |
2123 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
2124 \ | |
2125 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
2126 "Number of consecutive collections before gc time limit fires") \ | |
2127 \ | |
2128 product(bool, PrintAdaptiveSizePolicy, false, \ | |
2129 "Print information about AdaptiveSizePolicy") \ | |
2130 \ | |
2131 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
2132 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
2133 \ | |
2134 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
2135 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
2136 \ | |
2137 product(intx, PrefetchFieldsAhead, -1, \ | |
2138 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
2139 \ | |
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9073
diff
changeset
|
2140 diagnostic(bool, VerifySilently, false, \ |
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9073
diff
changeset
|
2141 "Don't print print the verification progress") \ |
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9073
diff
changeset
|
2142 \ |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2143 diagnostic(bool, VerifyDuringStartup, false, \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2144 "Verify memory system before executing any Java code " \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2145 "during VM initialization") \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2146 \ |
0 | 2147 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
2148 "Verify system before exiting") \ | |
2149 \ | |
2150 diagnostic(bool, VerifyBeforeGC, false, \ | |
2151 "Verify memory system before GC") \ | |
2152 \ | |
2153 diagnostic(bool, VerifyAfterGC, false, \ | |
2154 "Verify memory system after GC") \ | |
2155 \ | |
2156 diagnostic(bool, VerifyDuringGC, false, \ | |
2157 "Verify memory system during GC (between phases)") \ | |
2158 \ | |
390 | 2159 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
2160 "Enable parallel memory system verification") \ | |
2161 \ | |
1166 | 2162 diagnostic(bool, DeferInitialCardMark, false, \ |
2163 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
2164 "may arise from new_pre_store_barrier") \ | |
2165 \ | |
0 | 2166 diagnostic(bool, VerifyRememberedSets, false, \ |
2167 "Verify GC remembered sets") \ | |
2168 \ | |
2169 diagnostic(bool, VerifyObjectStartArray, true, \ | |
2170 "Verify GC object start array if verify before/after") \ | |
2171 \ | |
2172 product(bool, DisableExplicitGC, false, \ | |
2173 "Tells whether calling System.gc() does a full GC") \ | |
2174 \ | |
2175 notproduct(bool, CheckMemoryInitialization, false, \ | |
2176 "Checks memory initialization") \ | |
2177 \ | |
2178 product(bool, CollectGen0First, false, \ | |
2179 "Collect youngest generation before each full GC") \ | |
2180 \ | |
2181 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
2182 "Bind CMS Thread to CPU if possible") \ | |
2183 \ | |
2184 diagnostic(uintx, CPUForCMSThread, 0, \ | |
2185 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
2186 \ | |
2187 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
2188 "Bind GCTaskThreads to CPUs if possible") \ | |
2189 \ | |
2190 product(bool, UseGCTaskAffinity, false, \ | |
2191 "Use worker affinity when asking for GCTasks") \ | |
2192 \ | |
2193 product(uintx, ProcessDistributionStride, 4, \ | |
2194 "Stride through processors when distributing processes") \ | |
2195 \ | |
2196 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
2197 "number of times the coordinator GC thread will sleep while " \ | |
2198 "yielding before giving up and resuming GC") \ | |
2199 \ | |
2200 product(uintx, CMSYieldSleepCount, 0, \ | |
2201 "number of times a GC thread (minus the coordinator) " \ | |
2202 "will sleep while yielding before giving up and resuming GC") \ | |
2203 \ | |
2204 /* gc tracing */ \ | |
2205 manageable(bool, PrintGC, false, \ | |
2206 "Print message at garbage collect") \ | |
2207 \ | |
2208 manageable(bool, PrintGCDetails, false, \ | |
2209 "Print more details at garbage collect") \ | |
2210 \ | |
2211 manageable(bool, PrintGCDateStamps, false, \ | |
2212 "Print date stamps at garbage collect") \ | |
2213 \ | |
2214 manageable(bool, PrintGCTimeStamps, false, \ | |
2215 "Print timestamps at garbage collect") \ | |
2216 \ | |
2217 product(bool, PrintGCTaskTimeStamps, false, \ | |
2218 "Print timestamps for individual gc worker thread tasks") \ | |
2219 \ | |
2220 develop(intx, ConcGCYieldTimeout, 0, \ | |
2221 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
2222 \ | |
2223 notproduct(bool, TraceMarkSweep, false, \ | |
2224 "Trace mark sweep") \ | |
2225 \ | |
2226 product(bool, PrintReferenceGC, false, \ | |
2227 "Print times spent handling reference objects during GC " \ | |
2228 " (enabled only when PrintGCDetails)") \ | |
2229 \ | |
2230 develop(bool, TraceReferenceGC, false, \ | |
2231 "Trace handling of soft/weak/final/phantom references") \ | |
2232 \ | |
2233 develop(bool, TraceFinalizerRegistration, false, \ | |
2234 "Trace registration of final references") \ | |
2235 \ | |
2236 notproduct(bool, TraceScavenge, false, \ | |
2237 "Trace scavenge") \ | |
2238 \ | |
2239 product_rw(bool, TraceClassLoading, false, \ | |
2240 "Trace all classes loaded") \ | |
2241 \ | |
2242 product(bool, TraceClassLoadingPreorder, false, \ | |
2243 "Trace all classes loaded in order referenced (not loaded)") \ | |
2244 \ | |
2245 product_rw(bool, TraceClassUnloading, false, \ | |
2246 "Trace unloading of classes") \ | |
2247 \ | |
2248 product_rw(bool, TraceLoaderConstraints, false, \ | |
2249 "Trace loader constraints") \ | |
2250 \ | |
6725
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2251 develop(bool, TraceClassLoaderData, false, \ |
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2252 "Trace class loader loader_data lifetime") \ |
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|
2253 \ |
7446
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jmasa
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|
2254 product(uintx, InitialBootClassLoaderMetaspaceSize, \ |
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jmasa
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7428
diff
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|
2255 NOT_LP64(2200*K) LP64_ONLY(4*M), \ |
6725
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|
2256 "Initial size of the boot class loader data metaspace") \ |
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|
2257 \ |
0 | 2258 product(bool, TraceGen0Time, false, \ |
2259 "Trace accumulated time for Gen 0 collection") \ | |
2260 \ | |
2261 product(bool, TraceGen1Time, false, \ | |
2262 "Trace accumulated time for Gen 1 collection") \ | |
2263 \ | |
2264 product(bool, PrintTenuringDistribution, false, \ | |
2265 "Print tenuring age information") \ | |
2266 \ | |
2267 product_rw(bool, PrintHeapAtGC, false, \ | |
2268 "Print heap layout before and after each GC") \ | |
2269 \ | |
838
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diff
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|
2270 product_rw(bool, PrintHeapAtGCExtended, false, \ |
0316eac49d5a
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diff
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|
2271 "Prints extended information about the layout of the heap " \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
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diff
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|
2272 "when -XX:+PrintHeapAtGC is set") \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
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diff
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|
2273 \ |
0 | 2274 product(bool, PrintHeapAtSIGBREAK, true, \ |
2275 "Print heap layout in response to SIGBREAK") \ | |
2276 \ | |
615
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diff
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|
2277 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
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570
diff
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|
2278 "Print a class histogram before any major stop-world GC") \ |
c6c601a0f2d6
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diff
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|
2279 \ |
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diff
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|
2280 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
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diff
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|
2281 "Print a class histogram after any major stop-world GC") \ |
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|
2282 \ |
0 | 2283 manageable(bool, PrintClassHistogram, false, \ |
2284 "Print a histogram of class instances") \ | |
2285 \ | |
2286 develop(bool, TraceWorkGang, false, \ | |
2287 "Trace activities of work gangs") \ | |
2288 \ | |
2289 product(bool, TraceParallelOldGCTasks, false, \ | |
2290 "Trace multithreaded GC activity") \ | |
2291 \ | |
2292 develop(bool, TraceBlockOffsetTable, false, \ | |
2293 "Print BlockOffsetTable maps") \ | |
2294 \ | |
2295 develop(bool, TraceCardTableModRefBS, false, \ | |
2296 "Print CardTableModRefBS maps") \ | |
2297 \ | |
2298 develop(bool, TraceGCTaskManager, false, \ | |
2299 "Trace actions of the GC task manager") \ | |
2300 \ | |
2301 develop(bool, TraceGCTaskQueue, false, \ | |
2302 "Trace actions of the GC task queues") \ | |
2303 \ | |
6818 | 2304 diagnostic(bool, TraceGCTaskThread, false, \ |
0 | 2305 "Trace actions of the GC task threads") \ |
2306 \ | |
2307 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
2308 "Print the time taken by each parallel old gc phase." \ | |
2309 "PrintGCDetails must also be enabled.") \ | |
2310 \ | |
2311 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
2312 "Trace parallel old gc marking phase") \ | |
2313 \ | |
2314 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
2315 "Trace parallel old gc summary phase") \ | |
2316 \ | |
2317 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
2318 "Trace parallel old gc compaction phase") \ | |
2319 \ | |
2320 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
2321 "Trace parallel old gc dense prefix computation") \ | |
2322 \ | |
2323 develop(bool, IgnoreLibthreadGPFault, false, \ | |
2324 "Suppress workaround for libthread GP fault") \ | |
2325 \ | |
139
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|
2326 product(bool, PrintJNIGCStalls, false, \ |
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6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
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|
2327 "Print diagnostic message when GC is stalled" \ |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2328 "by JNI critical section") \ |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
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|
2329 \ |
10405 | 2330 experimental(double, ObjectCountCutOffPercent, 0.5, \ |
2331 "The percentage of the used heap that the instances of a class " \ | |
2332 "must occupy for the class to generate a trace event.") \ | |
2333 \ | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3745
diff
changeset
|
2334 /* GC log rotation setting */ \ |
2a241e764894
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parents:
3745
diff
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|
2335 \ |
2a241e764894
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3745
diff
changeset
|
2336 product(bool, UseGCLogFileRotation, false, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
changeset
|
2337 "Prevent large gclog file for long running app. " \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
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|
2338 "Requires -Xloggc:<filename>") \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
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|
2339 \ |
2a241e764894
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3745
diff
changeset
|
2340 product(uintx, NumberOfGCLogFiles, 0, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
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|
2341 "Number of gclog files in rotation, " \ |
2a241e764894
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3745
diff
changeset
|
2342 "Default: 0, no rotation") \ |
2a241e764894
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parents:
3745
diff
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|
2343 \ |
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3745
diff
changeset
|
2344 product(uintx, GCLogFileSize, 0, \ |
2a241e764894
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parents:
3745
diff
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|
2345 "GC log file size, Default: 0 bytes, no rotation " \ |
2a241e764894
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3745
diff
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|
2346 "Only valid with UseGCLogFileRotation") \ |
2a241e764894
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|
2347 \ |
0 | 2348 /* JVMTI heap profiling */ \ |
2349 \ | |
2350 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
2351 "Trace JVMTI object tagging calls") \ | |
2352 \ | |
2353 diagnostic(bool, VerifyBeforeIteration, false, \ | |
2354 "Verify memory system before JVMTI iteration") \ | |
2355 \ | |
2356 /* compiler interface */ \ | |
2357 \ | |
2358 develop(bool, CIPrintCompilerName, false, \ | |
2359 "when CIPrint is active, print the name of the active compiler") \ | |
2360 \ | |
2361 develop(bool, CIPrintCompileQueue, false, \ | |
2362 "display the contents of the compile queue whenever a " \ | |
2363 "compilation is enqueued") \ | |
2364 \ | |
2365 develop(bool, CIPrintRequests, false, \ | |
2366 "display every request for compilation") \ | |
2367 \ | |
2368 product(bool, CITime, false, \ | |
2369 "collect timing information for compilation") \ | |
2370 \ | |
2371 develop(bool, CITimeEach, false, \ | |
2372 "display timing information after each successful compilation") \ | |
2373 \ | |
6843 | 2374 develop(bool, CICountOSR, false, \ |
0 | 2375 "use a separate counter when assigning ids to osr compilations") \ |
2376 \ | |
2377 develop(bool, CICompileNatives, true, \ | |
2378 "compile native methods if supported by the compiler") \ | |
2379 \ | |
2380 develop_pd(bool, CICompileOSR, \ | |
2381 "compile on stack replacement methods if supported by the " \ | |
2382 "compiler") \ | |
2383 \ | |
2384 develop(bool, CIPrintMethodCodes, false, \ | |
2385 "print method bytecodes of the compiled code") \ | |
2386 \ | |
2387 develop(bool, CIPrintTypeFlow, false, \ | |
2388 "print the results of ciTypeFlow analysis") \ | |
2389 \ | |
2390 develop(bool, CITraceTypeFlow, false, \ | |
2391 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
2392 \ | |
2403 | 2393 develop(intx, OSROnlyBCI, -1, \ |
2394 "OSR only at this bci. Negative values mean exclude that bci") \ | |
2395 \ | |
0 | 2396 /* compiler */ \ |
2397 \ | |
2398 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
2399 "Number of compiler threads to run") \ | |
2400 \ | |
2401 product(intx, CompilationPolicyChoice, 0, \ | |
2402 "which compilation policy (0/1)") \ | |
2403 \ | |
2404 develop(bool, UseStackBanging, true, \ | |
2405 "use stack banging for stack overflow checks (required for " \ | |
2406 "proper StackOverflow handling; disable only to measure cost " \ | |
2407 "of stackbanging)") \ | |
2408 \ | |
2409 develop(bool, UseStrictFP, true, \ | |
2410 "use strict fp if modifier strictfp is set") \ | |
2411 \ | |
2412 develop(bool, GenerateSynchronizationCode, true, \ | |
2413 "generate locking/unlocking code for synchronized methods and " \ | |
2414 "monitors") \ | |
2415 \ | |
2416 develop(bool, GenerateCompilerNullChecks, true, \ | |
2417 "Generate explicit null checks for loads/stores/calls") \ | |
2418 \ | |
2419 develop(bool, GenerateRangeChecks, true, \ | |
2420 "Generate range checks for array accesses") \ | |
2421 \ | |
2422 develop_pd(bool, ImplicitNullChecks, \ | |
2423 "generate code for implicit null checks") \ | |
2424 \ | |
2425 product(bool, PrintSafepointStatistics, false, \ | |
2426 "print statistics about safepoint synchronization") \ | |
2427 \ | |
2428 product(intx, PrintSafepointStatisticsCount, 300, \ | |
2429 "total number of safepoint statistics collected " \ | |
2430 "before printing them out") \ | |
2431 \ | |
2432 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
2433 "print safepoint statistics only when safepoint takes" \ | |
2434 " more than PrintSafepointSatisticsTimeout in millis") \ | |
2435 \ | |
1321
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1288
diff
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|
2436 product(bool, TraceSafepointCleanupTime, false, \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2437 "print the break down of clean up tasks performed during" \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2438 " safepoint") \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2439 \ |
0 | 2440 product(bool, Inline, true, \ |
2441 "enable inlining") \ | |
2442 \ | |
2443 product(bool, ClipInlining, true, \ | |
2444 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
2445 \ | |
2446 develop(bool, UseCHA, true, \ | |
2447 "enable CHA") \ | |
2448 \ | |
2449 product(bool, UseTypeProfile, true, \ | |
2450 "Check interpreter profile for historically monomorphic calls") \ | |
2451 \ | |
2452 notproduct(bool, TimeCompiler, false, \ | |
2453 "time the compiler") \ | |
2454 \ | |
2455 diagnostic(bool, PrintInlining, false, \ | |
2456 "prints inlining optimizations") \ | |
2457 \ | |
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2458 product(bool, UsePopCountInstruction, false, \ |
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2459 "Use population count instruction") \ |
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2460 \ |
0 | 2461 develop(bool, EagerInitialization, false, \ |
2462 "Eagerly initialize classes if possible") \ | |
2463 \ | |
2464 develop(bool, TraceMethodReplacement, false, \ | |
2465 "Print when methods are replaced do to recompilation") \ | |
2466 \ | |
2467 develop(bool, PrintMethodFlushing, false, \ | |
2468 "print the nmethods being flushed") \ | |
2469 \ | |
2470 develop(bool, UseRelocIndex, false, \ | |
2471 "use an index to speed random access to relocations") \ | |
2472 \ | |
2473 develop(bool, StressCodeBuffers, false, \ | |
2474 "Exercise code buffer expansion and other rare state changes") \ | |
2475 \ | |
2476 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
2477 "Generate extra debugging info for non-safepoints in nmethods") \ | |
2478 \ | |
4066 | 2479 product(bool, PrintVMOptions, false, \ |
1150 | 2480 "Print flags that appeared on the command line") \ |
0 | 2481 \ |
564 | 2482 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
2483 "Ignore unrecognized VM options") \ | |
2484 \ | |
1150 | 2485 product(bool, PrintCommandLineFlags, false, \ |
2486 "Print flags specified on command line or set by ergonomics") \ | |
2487 \ | |
2488 product(bool, PrintFlagsInitial, false, \ | |
2489 "Print all VM flags before argument processing and exit VM") \ | |
2490 \ | |
2491 product(bool, PrintFlagsFinal, false, \ | |
2492 "Print all VM flags after argument and ergonomic processing") \ | |
2493 \ | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
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1749
diff
changeset
|
2494 notproduct(bool, PrintFlagsWithComments, false, \ |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2495 "Print all VM flags with default values and descriptions and exit")\ |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
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1749
diff
changeset
|
2496 \ |
0 | 2497 diagnostic(bool, SerializeVMOutput, true, \ |
2498 "Use a mutex to serialize output to tty and hotspot.log") \ | |
2499 \ | |
2500 diagnostic(bool, DisplayVMOutput, true, \ | |
2501 "Display all VM output on the tty, independently of LogVMOutput") \ | |
2502 \ | |
2503 diagnostic(bool, LogVMOutput, trueInDebug, \ | |
2504 "Save VM output to hotspot.log, or to LogFile") \ | |
2505 \ | |
2506 diagnostic(ccstr, LogFile, NULL, \ | |
2507 "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ | |
2508 \ | |
2509 product(ccstr, ErrorFile, NULL, \ | |
2510 "If an error occurs, save the error data to this file " \ | |
2511 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
2512 \ | |
2513 product(bool, DisplayVMOutputToStderr, false, \ | |
2514 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
2515 \ | |
2516 product(bool, DisplayVMOutputToStdout, false, \ | |
2517 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
2518 \ | |
2519 product(bool, UseHeavyMonitors, false, \ | |
2520 "use heavyweight instead of lightweight Java monitors") \ | |
2521 \ | |
6162 | 2522 product(bool, PrintStringTableStatistics, false, \ |
2523 "print statistics about the StringTable and SymbolTable") \ | |
2524 \ | |
0 | 2525 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
2526 "print histogram of the symbol table") \ | |
2527 \ | |
2528 notproduct(bool, ExitVMOnVerifyError, false, \ | |
2529 "standard exit from VM if bytecode verify error " \ | |
2530 "(only in debug mode)") \ | |
2531 \ | |
2532 notproduct(ccstr, AbortVMOnException, NULL, \ | |
2533 "Call fatal if this exception is thrown. Example: " \ | |
2534 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
2535 \ | |
1684
66c5dadb4d61
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1660
diff
changeset
|
2536 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
66c5dadb4d61
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1660
diff
changeset
|
2537 "Call fatal if the exception pointed by AbortVMOnException " \ |
66c5dadb4d61
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parents:
1660
diff
changeset
|
2538 "has this message.") \ |
66c5dadb4d61
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diff
changeset
|
2539 \ |
0 | 2540 develop(bool, DebugVtables, false, \ |
2541 "add debugging code to vtable dispatch") \ | |
2542 \ | |
2543 develop(bool, PrintVtables, false, \ | |
2544 "print vtables when printing klass") \ | |
2545 \ | |
2546 notproduct(bool, PrintVtableStats, false, \ | |
2547 "print vtables stats at end of run") \ | |
2548 \ | |
2549 develop(bool, TraceCreateZombies, false, \ | |
2550 "trace creation of zombie nmethods") \ | |
2551 \ | |
2552 notproduct(bool, IgnoreLockingAssertions, false, \ | |
2553 "disable locking assertions (for speed)") \ | |
2554 \ | |
2555 product(bool, RangeCheckElimination, true, \ | |
8860 | 2556 "Eliminate range checks") \ |
0 | 2557 \ |
2558 develop_pd(bool, UncommonNullCast, \ | |
2559 "track occurrences of null in casts; adjust compiler tactics") \ | |
2560 \ | |
2561 develop(bool, TypeProfileCasts, true, \ | |
2562 "treat casts like calls for purposes of type profiling") \ | |
2563 \ | |
2564 develop(bool, DelayCompilationDuringStartup, true, \ | |
2565 "Delay invoking the compiler until main application class is " \ | |
2566 "loaded") \ | |
2567 \ | |
2568 develop(bool, CompileTheWorld, false, \ | |
2569 "Compile all methods in all classes in bootstrap class path " \ | |
2570 "(stress test)") \ | |
2571 \ | |
2572 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
2573 "Preload all classes used by a class before start loading") \ | |
2574 \ | |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
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parents:
1179
diff
changeset
|
2575 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2576 "Force a safepoint every n compiles so sweeper can keep up") \ |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2577 \ |
0 | 2578 develop(bool, FillDelaySlots, true, \ |
2579 "Fill delay slots (on SPARC only)") \ | |
2580 \ | |
2581 develop(bool, TimeLivenessAnalysis, false, \ | |
2582 "Time computation of bytecode liveness analysis") \ | |
2583 \ | |
2584 develop(bool, TraceLivenessGen, false, \ | |
2585 "Trace the generation of liveness analysis information") \ | |
2586 \ | |
2587 notproduct(bool, TraceLivenessQuery, false, \ | |
2588 "Trace queries of liveness analysis information") \ | |
2589 \ | |
2590 notproduct(bool, CollectIndexSetStatistics, false, \ | |
2591 "Collect information about IndexSets") \ | |
2592 \ | |
2593 develop(bool, UseLoopSafepoints, true, \ | |
2594 "Generate Safepoint nodes in every loop") \ | |
2595 \ | |
2596 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
2597 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
2598 "Inline allocations larger than this in doublewords must go slow")\ | |
2599 \ | |
2600 product(bool, AggressiveOpts, false, \ | |
2601 "Enable aggressive optimizations - see arguments.cpp") \ | |
2602 \ | |
2603 /* statistics */ \ | |
2604 develop(bool, CountCompiledCalls, false, \ | |
2605 "counts method invocations") \ | |
2606 \ | |
2607 notproduct(bool, CountRuntimeCalls, false, \ | |
2608 "counts VM runtime calls") \ | |
2609 \ | |
2610 develop(bool, CountJNICalls, false, \ | |
2611 "counts jni method invocations") \ | |
2612 \ | |
2613 notproduct(bool, CountJVMCalls, false, \ | |
2614 "counts jvm method invocations") \ | |
2615 \ | |
2616 notproduct(bool, CountRemovableExceptions, false, \ | |
2617 "count exceptions that could be replaced by branches due to " \ | |
2618 "inlining") \ | |
2619 \ | |
2620 notproduct(bool, ICMissHistogram, false, \ | |
2621 "produce histogram of IC misses") \ | |
2622 \ | |
2623 notproduct(bool, PrintClassStatistics, false, \ | |
2624 "prints class statistics at end of run") \ | |
2625 \ | |
2626 notproduct(bool, PrintMethodStatistics, false, \ | |
2627 "prints method statistics at end of run") \ | |
2628 \ | |
2629 /* interpreter */ \ | |
2630 develop(bool, ClearInterpreterLocals, false, \ | |
2631 "Always clear local variables of interpreter activations upon " \ | |
2632 "entry") \ | |
2633 \ | |
2634 product_pd(bool, RewriteBytecodes, \ | |
2635 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
2636 \ | |
2637 product_pd(bool, RewriteFrequentPairs, \ | |
2638 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
2639 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
2640 diagnostic(bool, PrintInterpreter, false, \ |
0 | 2641 "Prints the generated interpreter code") \ |
2642 \ | |
2643 product(bool, UseInterpreter, true, \ | |
2644 "Use interpreter for non-compiled methods") \ | |
2645 \ | |
2646 develop(bool, UseFastSignatureHandlers, true, \ | |
2647 "Use fast signature handlers for native calls") \ | |
2648 \ | |
2649 product(bool, UseLoopCounter, true, \ | |
2650 "Increment invocation counter on backward branch") \ | |
2651 \ | |
2652 product(bool, UseFastEmptyMethods, true, \ | |
2653 "Use fast method entry code for empty methods") \ | |
2654 \ | |
2655 product(bool, UseFastAccessorMethods, true, \ | |
2656 "Use fast method entry code for accessor methods") \ | |
2657 \ | |
2658 product_pd(bool, UseOnStackReplacement, \ | |
2659 "Use on stack replacement, calls runtime if invoc. counter " \ | |
2660 "overflows in loop") \ | |
2661 \ | |
2662 notproduct(bool, TraceOnStackReplacement, false, \ | |
2663 "Trace on stack replacement") \ | |
2664 \ | |
2665 product_pd(bool, PreferInterpreterNativeStubs, \ | |
2666 "Use always interpreter stubs for native methods invoked via " \ | |
2667 "interpreter") \ | |
2668 \ | |
2669 develop(bool, CountBytecodes, false, \ | |
2670 "Count number of bytecodes executed") \ | |
2671 \ | |
2672 develop(bool, PrintBytecodeHistogram, false, \ | |
2673 "Print histogram of the executed bytecodes") \ | |
2674 \ | |
2675 develop(bool, PrintBytecodePairHistogram, false, \ | |
2676 "Print histogram of the executed bytecode pairs") \ | |
2677 \ | |
100
c7c777385a15
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jrose
parents:
76
diff
changeset
|
2678 diagnostic(bool, PrintSignatureHandlers, false, \ |
0 | 2679 "Print code generated for native method signature handlers") \ |
2680 \ | |
2681 develop(bool, VerifyOops, false, \ | |
2682 "Do plausibility checks for oops") \ | |
2683 \ | |
2684 develop(bool, CheckUnhandledOops, false, \ | |
2685 "Check for unhandled oops in VM code") \ | |
2686 \ | |
2687 develop(bool, VerifyJNIFields, trueInDebug, \ | |
2688 "Verify jfieldIDs for instance fields") \ | |
2689 \ | |
2690 notproduct(bool, VerifyJNIEnvThread, false, \ | |
2691 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
2692 "from JNI") \ | |
2693 \ | |
2694 develop(bool, VerifyFPU, false, \ | |
2695 "Verify FPU state (check for NaN's, etc.)") \ | |
2696 \ | |
2697 develop(bool, VerifyThread, false, \ | |
2698 "Watch the thread register for corruption (SPARC only)") \ | |
2699 \ | |
2700 develop(bool, VerifyActivationFrameSize, false, \ | |
2701 "Verify that activation frame didn't become smaller than its " \ | |
2702 "minimal size") \ | |
2703 \ | |
2704 develop(bool, TraceFrequencyInlining, false, \ | |
2705 "Trace frequency based inlining") \ | |
2706 \ | |
2707 develop_pd(bool, InlineIntrinsics, \ | |
2708 "Inline intrinsics that can be statically resolved") \ | |
2709 \ | |
2710 product_pd(bool, ProfileInterpreter, \ | |
2711 "Profile at the bytecode level during interpretation") \ | |
2712 \ | |
2713 develop_pd(bool, ProfileTraps, \ | |
2714 "Profile deoptimization traps at the bytecode level") \ | |
2715 \ | |
2716 product(intx, ProfileMaturityPercentage, 20, \ | |
2717 "number of method invocations/branches (expressed as % of " \ | |
2718 "CompileThreshold) before using the method's profile") \ | |
2719 \ | |
2720 develop(bool, PrintMethodData, false, \ | |
2721 "Print the results of +ProfileInterpreter at end of run") \ | |
2722 \ | |
2723 develop(bool, VerifyDataPointer, trueInDebug, \ | |
2724 "Verify the method data pointer during interpreter profiling") \ | |
2725 \ | |
2726 develop(bool, VerifyCompiledCode, false, \ | |
2727 "Include miscellaneous runtime verifications in nmethod code; " \ | |
1064 | 2728 "default off because it disturbs nmethod size heuristics") \ |
0 | 2729 \ |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2730 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2731 "Manually make GC thread crash then dump java stack trace; " \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2732 "Test only") \ |
0 | 2733 \ |
2734 /* compilation */ \ | |
2735 product(bool, UseCompiler, true, \ | |
2736 "use compilation") \ | |
2737 \ | |
2738 develop(bool, TraceCompilationPolicy, false, \ | |
2739 "Trace compilation policy") \ | |
2740 \ | |
2741 develop(bool, TimeCompilationPolicy, false, \ | |
2742 "Time the compilation policy") \ | |
2743 \ | |
2744 product(bool, UseCounterDecay, true, \ | |
2745 "adjust recompilation counters") \ | |
2746 \ | |
2747 develop(intx, CounterHalfLifeTime, 30, \ | |
2748 "half-life time of invocation counters (in secs)") \ | |
2749 \ | |
2750 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
2751 "Min. ms. between invocation of CounterDecay") \ | |
2752 \ | |
2753 product(bool, AlwaysCompileLoopMethods, false, \ | |
2754 "when using recompilation, never interpret methods " \ | |
2755 "containing loops") \ | |
2756 \ | |
2757 product(bool, DontCompileHugeMethods, true, \ | |
2758 "don't compile methods > HugeMethodLimit") \ | |
2759 \ | |
2760 /* Bytecode escape analysis estimation. */ \ | |
2761 product(bool, EstimateArgEscape, true, \ | |
2762 "Analyze bytecodes to estimate escape state of arguments") \ | |
2763 \ | |
2764 product(intx, BCEATraceLevel, 0, \ | |
2765 "How much tracing to do of bytecode escape analysis estimates") \ | |
2766 \ | |
2767 product(intx, MaxBCEAEstimateLevel, 5, \ | |
2768 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
2769 \ | |
2770 product(intx, MaxBCEAEstimateSize, 150, \ | |
2771 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
2772 \ | |
2773 product(intx, AllocatePrefetchStyle, 1, \ | |
2774 "0 = no prefetch, " \ | |
2775 "1 = prefetch instructions for each allocation, " \ | |
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2776 "2 = use TLAB watermark to gate allocation prefetch, " \ |
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2777 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
0 | 2778 \ |
2779 product(intx, AllocatePrefetchDistance, -1, \ | |
2780 "Distance to prefetch ahead of allocation pointer") \ | |
2781 \ | |
3854 | 2782 product(intx, AllocatePrefetchLines, 3, \ |
2783 "Number of lines to prefetch ahead of array allocation pointer") \ | |
2784 \ | |
2785 product(intx, AllocateInstancePrefetchLines, 1, \ | |
2786 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
0 | 2787 \ |
2788 product(intx, AllocatePrefetchStepSize, 16, \ | |
2789 "Step size in bytes of sequential prefetch instructions") \ | |
2790 \ | |
2791 product(intx, AllocatePrefetchInstr, 0, \ | |
2792 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
2793 \ | |
2794 /* deoptimization */ \ | |
2795 develop(bool, TraceDeoptimization, false, \ | |
2796 "Trace deoptimization") \ | |
2797 \ | |
2798 develop(bool, DebugDeoptimization, false, \ | |
2799 "Tracing various information while debugging deoptimization") \ | |
2800 \ | |
2801 product(intx, SelfDestructTimer, 0, \ | |
2802 "Will cause VM to terminate after a given time (in minutes) " \ | |
2803 "(0 means off)") \ | |
2804 \ | |
2805 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
2806 "Max. no. of lines in the stack trace for Java exceptions " \ | |
2807 "(0 means all)") \ | |
2808 \ | |
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
2809 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
0 | 2810 "Guarantee a safepoint (at least) every so many milliseconds " \ |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2811 "(0 means none)")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2812 \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2813 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2814 "Guarantee a safepoint (at least) every so many milliseconds " \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2815 "(0 means none)")) \ |
0 | 2816 \ |
2817 product(intx, SafepointTimeoutDelay, 10000, \ | |
2818 "Delay in milliseconds for option SafepointTimeout") \ | |
2819 \ | |
6818 | 2820 product(intx, NmethodSweepFraction, 16, \ |
0 | 2821 "Number of invocations of sweeper to cover all nmethods") \ |
2822 \ | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2823 product(intx, NmethodSweepCheckInterval, 5, \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2824 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2825 \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2826 notproduct(bool, LogSweeper, false, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2827 "Keep a ring buffer of sweeper activity") \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2828 \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2829 notproduct(intx, SweeperLogEntries, 1024, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2830 "Number of records in the ring buffer of sweeper activity") \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2831 \ |
0 | 2832 notproduct(intx, MemProfilingInterval, 500, \ |
2833 "Time between each invocation of the MemProfiler") \ | |
2834 \ | |
2835 develop(intx, MallocCatchPtr, -1, \ | |
2836 "Hit breakpoint when mallocing/freeing this pointer") \ | |
2837 \ | |
2838 notproduct(intx, AssertRepeat, 1, \ | |
2839 "number of times to evaluate expression in assert " \ | |
2840 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
2841 \ | |
2842 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
2843 "List of assertions (file:line) to muzzle") \ | |
2844 \ | |
2845 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
2846 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
2847 "is used") \ | |
2848 \ | |
2849 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
2850 "Threshold for total handle allocation when " \ | |
2851 "+TraceHandleAllocation is used") \ | |
2852 \ | |
2853 develop(intx, StackPrintLimit, 100, \ | |
2854 "number of stack frames to print in VM-level stack dump") \ | |
2855 \ | |
2856 notproduct(intx, MaxElementPrintSize, 256, \ | |
2857 "maximum number of elements to print") \ | |
2858 \ | |
2859 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
2860 "maximum number of subklasses to print when printing klass") \ | |
2861 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2862 product(intx, MaxInlineLevel, 9, \ |
0 | 2863 "maximum number of nested calls that are inlined") \ |
2864 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2865 product(intx, MaxRecursiveInlineLevel, 1, \ |
0 | 2866 "maximum number of nested recursive calls that are inlined") \ |
2867 \ | |
675 | 2868 product_pd(intx, InlineSmallCode, \ |
0 | 2869 "Only inline already compiled methods if their code size is " \ |
2870 "less than this") \ | |
2871 \ | |
2872 product(intx, MaxInlineSize, 35, \ | |
2873 "maximum bytecode size of a method to be inlined") \ | |
2874 \ | |
2875 product_pd(intx, FreqInlineSize, \ | |
2876 "maximum bytecode size of a frequent method to be inlined") \ | |
2877 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2878 product(intx, MaxTrivialSize, 6, \ |
0 | 2879 "maximum bytecode size of a trivial method to be inlined") \ |
2880 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2881 product(intx, MinInliningThreshold, 250, \ |
0 | 2882 "min. invocation count a method needs to have to be inlined") \ |
2883 \ | |
2884 develop(intx, MethodHistogramCutoff, 100, \ | |
2885 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
2886 \ | |
2887 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
2888 "# of interpreted methods to show in profile") \ | |
2889 \ | |
2890 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
2891 "# of compiled methods to show in profile") \ | |
2892 \ | |
2893 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
2894 "# of stub methods to show in profile") \ | |
2895 \ | |
2896 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
2897 "# of runtime stub nodes to show in profile") \ | |
2898 \ | |
2899 product(intx, ProfileIntervalsTicks, 100, \ | |
2900 "# of ticks between printing of interval profile " \ | |
2901 "(+ProfileIntervals)") \ | |
2902 \ | |
2903 notproduct(intx, ScavengeALotInterval, 1, \ | |
2904 "Interval between which scavenge will occur with +ScavengeALot") \ | |
2905 \ | |
2906 notproduct(intx, FullGCALotInterval, 1, \ | |
2907 "Interval between which full gc will occur with +FullGCALot") \ | |
2908 \ | |
2909 notproduct(intx, FullGCALotStart, 0, \ | |
2910 "For which invocation to start FullGCAlot") \ | |
2911 \ | |
2912 notproduct(intx, FullGCALotDummies, 32*K, \ | |
2913 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
2914 "to move") \ | |
2915 \ | |
2916 develop(intx, DontYieldALotInterval, 10, \ | |
2917 "Interval between which yields will be dropped (milliseconds)") \ | |
2918 \ | |
2919 develop(intx, MinSleepInterval, 1, \ | |
2920 "Minimum sleep() interval (milliseconds) when " \ | |
2921 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
2922 \ | |
2923 develop(intx, ProfilerPCTickThreshold, 15, \ | |
2924 "Number of ticks in a PC buckets to be a hotspot") \ | |
2925 \ | |
2926 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
2927 "Number of exits until DeoptimizeALot kicks in") \ | |
2928 \ | |
2929 notproduct(intx, ZombieALotInterval, 5, \ | |
2930 "Number of exits until ZombieALot kicks in") \ | |
2931 \ | |
2932 develop(bool, StressNonEntrant, false, \ | |
2933 "Mark nmethods non-entrant at registration") \ | |
2934 \ | |
2935 diagnostic(intx, MallocVerifyInterval, 0, \ | |
2936 "if non-zero, verify C heap after every N calls to " \ | |
2937 "malloc/realloc/free") \ | |
2938 \ | |
2939 diagnostic(intx, MallocVerifyStart, 0, \ | |
2940 "if non-zero, start verifying C heap after Nth call to " \ | |
2941 "malloc/realloc/free") \ | |
2942 \ | |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2943 diagnostic(uintx, MallocMaxTestWords, 0, \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2944 "if non-zero, max # of Words that malloc/realloc can allocate " \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2945 "(for testing only)") \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2946 \ |
6818 | 2947 product(intx, TypeProfileWidth, 2, \ |
0 | 2948 "number of receiver types to record in call/cast profile") \ |
2949 \ | |
2950 develop(intx, BciProfileWidth, 2, \ | |
2951 "number of return bci's to record in ret profile") \ | |
2952 \ | |
2953 product(intx, PerMethodRecompilationCutoff, 400, \ | |
2954 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
2955 \ | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
2956 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
0 | 2957 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
2958 \ | |
2959 product(intx, PerMethodTrapLimit, 100, \ | |
2960 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
2961 \ | |
2962 product(intx, PerBytecodeTrapLimit, 4, \ | |
2963 "Limit on traps (of one kind) at a particular BCI") \ | |
2964 \ | |
2965 develop(intx, InlineFrequencyRatio, 20, \ | |
2966 "Ratio of call site execution to caller method invocation") \ | |
2967 \ | |
2968 develop_pd(intx, InlineFrequencyCount, \ | |
2969 "Count of call site execution necessary to trigger frequent " \ | |
2970 "inlining") \ | |
2971 \ | |
2972 develop(intx, InlineThrowCount, 50, \ | |
2973 "Force inlining of interpreted methods that throw this often") \ | |
2974 \ | |
2975 develop(intx, InlineThrowMaxSize, 200, \ | |
2976 "Force inlining of throwing methods smaller than this") \ | |
2977 \ | |
2978 develop(intx, ProfilerNodeSize, 1024, \ | |
2979 "Size in K to allocate for the Profile Nodes of each thread") \ | |
2980 \ | |
2981 product_pd(intx, PreInflateSpin, \ | |
2982 "Number of times to spin wait before inflation") \ | |
2983 \ | |
2984 /* gc parameters */ \ | |
1064 | 2985 product(uintx, InitialHeapSize, 0, \ |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10208
diff
changeset
|
2986 "Initial heap size (in bytes); zero means use ergonomics") \ |
1064 | 2987 \ |
2988 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
2989 "Maximum heap size (in bytes)") \ | |
2990 \ | |
2991 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
2992 "Initial tenured generation size (in bytes)") \ | |
2993 \ | |
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
2994 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
1064 | 2995 "Initial new generation size (in bytes)") \ |
0 | 2996 \ |
2997 product(uintx, MaxNewSize, max_uintx, \ | |
1064 | 2998 "Maximum new generation size (in bytes), max_uintx means set " \ |
2999 "ergonomically") \ | |
0 | 3000 \ |
3001 product(uintx, PretenureSizeThreshold, 0, \ | |
1064 | 3002 "Maximum size in bytes of objects allocated in DefNew " \ |
3003 "generation; zero means no maximum") \ | |
3004 \ | |
3005 product(uintx, TLABSize, 0, \ | |
3006 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
0 | 3007 \ |
3008 product(uintx, MinTLABSize, 2*K, \ | |
3009 "Minimum allowed TLAB size (in bytes)") \ | |
3010 \ | |
3011 product(uintx, TLABAllocationWeight, 35, \ | |
3012 "Allocation averaging weight") \ | |
3013 \ | |
3014 product(uintx, TLABWasteTargetPercent, 1, \ | |
3015 "Percentage of Eden that can be wasted") \ | |
3016 \ | |
3017 product(uintx, TLABRefillWasteFraction, 64, \ | |
3018 "Max TLAB waste at a refill (internal fragmentation)") \ | |
3019 \ | |
3020 product(uintx, TLABWasteIncrement, 4, \ | |
3021 "Increment allowed waste at slow allocation") \ | |
3022 \ | |
8035 | 3023 product(uintx, SurvivorRatio, 8, \ |
0 | 3024 "Ratio of eden/survivor space size") \ |
3025 \ | |
8035 | 3026 product(uintx, NewRatio, 2, \ |
0 | 3027 "Ratio of new/old generation sizes") \ |
3028 \ | |
3029 product_pd(uintx, NewSizeThreadIncrease, \ | |
3030 "Additional size added to desired new generation size per " \ | |
3031 "non-daemon thread (in bytes)") \ | |
3032 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3033 product_pd(uintx, MetaspaceSize, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3034 "Initial size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3035 \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3036 product(uintx, MaxMetaspaceSize, max_uintx, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3037 "Maximum size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3038 \ |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
3039 product(uintx, ClassMetaspaceSize, 2*M, \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3040 "Maximum size of InstanceKlass area in Metaspace used for " \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3041 "UseCompressedKlassPointers") \ |
0 | 3042 \ |
3043 product(uintx, MinHeapFreeRatio, 40, \ | |
3044 "Min percentage of heap free after GC to avoid expansion") \ | |
3045 \ | |
3046 product(uintx, MaxHeapFreeRatio, 70, \ | |
3047 "Max percentage of heap free after GC to avoid shrinking") \ | |
3048 \ | |
3049 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
3050 "Number of milliseconds per MB of free space in the heap") \ | |
3051 \ | |
3052 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
3053 "Min change in heap space due to GC (in bytes)") \ | |
3054 \ | |
6818 | 3055 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3056 "Min expansion of Metaspace (in bytes)") \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3057 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3058 product(uintx, MinMetaspaceFreeRatio, 40, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3059 "Min percentage of Metaspace free after GC to avoid expansion") \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3060 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3061 product(uintx, MaxMetaspaceFreeRatio, 70, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3062 "Max percentage of Metaspace free after GC to avoid shrinking") \ |
0 | 3063 \ |
6818 | 3064 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3065 "Max expansion of Metaspace without full GC (in bytes)") \ |
0 | 3066 \ |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3067 product(uintx, QueuedAllocationWarningCount, 0, \ |
0 | 3068 "Number of times an allocation that queues behind a GC " \ |
3069 "will retry before printing a warning") \ | |
3070 \ | |
3071 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
3072 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
3073 \ | |
3074 diagnostic(intx, VerifyGCLevel, 0, \ | |
3075 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
3076 \ | |
6818 | 3077 product(uintx, MaxTenuringThreshold, 15, \ |
0 | 3078 "Maximum value for tenuring threshold") \ |
3079 \ | |
6818 | 3080 product(uintx, InitialTenuringThreshold, 7, \ |
0 | 3081 "Initial value for tenuring threshold") \ |
3082 \ | |
8035 | 3083 product(uintx, TargetSurvivorRatio, 50, \ |
0 | 3084 "Desired percentage of survivor space used after scavenge") \ |
3085 \ | |
438 | 3086 product(uintx, MarkSweepDeadRatio, 5, \ |
0 | 3087 "Percentage (0-100) of the old gen allowed as dead wood." \ |
3088 "Serial mark sweep treats this as both the min and max value." \ | |
3089 "CMS uses this value only if it falls back to mark sweep." \ | |
3090 "Par compact uses a variable scale based on the density of the" \ | |
3091 "generation and treats this as the max value when the heap is" \ | |
3092 "either completely full or completely empty. Par compact also" \ | |
3093 "has a smaller default value; see arguments.cpp.") \ | |
3094 \ | |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3095 product(uintx, MarkSweepAlwaysCompactCount, 4, \ |
0 | 3096 "How often should we fully compact the heap (ignoring the dead " \ |
3097 "space parameters)") \ | |
3098 \ | |
3099 product(intx, PrintCMSStatistics, 0, \ | |
3100 "Statistics for CMS") \ | |
3101 \ | |
3102 product(bool, PrintCMSInitiationStatistics, false, \ | |
3103 "Statistics for initiating a CMS collection") \ | |
3104 \ | |
3105 product(intx, PrintFLSStatistics, 0, \ | |
3106 "Statistics for CMS' FreeListSpace") \ | |
3107 \ | |
3108 product(intx, PrintFLSCensus, 0, \ | |
3109 "Census for CMS' FreeListSpace") \ | |
3110 \ | |
3111 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
3112 "Delay in ms between expansion and allocation") \ | |
3113 \ | |
6817 | 3114 develop(uintx, GCWorkerDelayMillis, 0, \ |
3115 "Delay in ms in scheduling GC workers") \ | |
3116 \ | |
0 | 3117 product(intx, DeferThrSuspendLoopCount, 4000, \ |
3118 "(Unstable) Number of times to iterate in safepoint loop " \ | |
3119 " before blocking VM threads ") \ | |
3120 \ | |
3121 product(intx, DeferPollingPageLoopCount, -1, \ | |
3122 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
3123 "before changing safepoint polling page to RO ") \ | |
3124 \ | |
3125 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
3126 \ | |
3127 product(bool, PSChunkLargeArrays, true, \ | |
3128 "true: process large arrays in chunks") \ | |
3129 \ | |
3130 product(uintx, GCDrainStackTargetSize, 64, \ | |
3131 "how many entries we'll try to leave on the stack during " \ | |
3132 "parallel GC") \ | |
3133 \ | |
3134 /* stack parameters */ \ | |
3135 product_pd(intx, StackYellowPages, \ | |
3136 "Number of yellow zone (recoverable overflows) pages") \ | |
3137 \ | |
3138 product_pd(intx, StackRedPages, \ | |
3139 "Number of red zone (unrecoverable overflows) pages") \ | |
3140 \ | |
3141 product_pd(intx, StackShadowPages, \ | |
3142 "Number of shadow zone (for overflow checking) pages" \ | |
3143 " this should exceed the depth of the VM and native call stack") \ | |
3144 \ | |
3145 product_pd(intx, ThreadStackSize, \ | |
3146 "Thread Stack Size (in Kbytes)") \ | |
3147 \ | |
3148 product_pd(intx, VMThreadStackSize, \ | |
3149 "Non-Java Thread Stack Size (in Kbytes)") \ | |
3150 \ | |
3151 product_pd(intx, CompilerThreadStackSize, \ | |
3152 "Compiler Thread Stack Size (in Kbytes)") \ | |
3153 \ | |
3154 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
3155 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
3156 \ | |
3157 product(uintx, ThreadSafetyMargin, 50*M, \ | |
3158 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
3159 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
3160 "disable this feature") \ | |
3161 \ | |
3162 /* code cache parameters */ \ | |
3163 develop(uintx, CodeCacheSegmentSize, 64, \ | |
3164 "Code cache segment size (in bytes) - smallest unit of " \ | |
3165 "allocation") \ | |
3166 \ | |
3167 develop_pd(intx, CodeEntryAlignment, \ | |
3168 "Code entry alignment for generated code (in bytes)") \ | |
3169 \ | |
1365 | 3170 product_pd(intx, OptoLoopAlignment, \ |
3171 "Align inner loops to zero relative to this modulus") \ | |
3172 \ | |
0 | 3173 product_pd(uintx, InitialCodeCacheSize, \ |
3174 "Initial code cache size (in bytes)") \ | |
3175 \ | |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3176 develop_pd(uintx, CodeCacheMinimumUseSpace, \ |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3177 "Minimum code cache size (in bytes) required to start VM.") \ |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3178 \ |
0 | 3179 product_pd(uintx, ReservedCodeCacheSize, \ |
3180 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
3181 \ | |
3182 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
3183 "When less than X space left, we stop compiling.") \ | |
3184 \ | |
3185 product_pd(uintx, CodeCacheExpansionSize, \ | |
3186 "Code cache expansion size (in bytes)") \ | |
3187 \ | |
3188 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
3189 "Minimum number of segments in a code cache block.") \ | |
3190 \ | |
3191 notproduct(bool, ExitOnFullCodeCache, false, \ | |
3192 "Exit the VM if we fill the code cache.") \ | |
3193 \ | |
4039 | 3194 product(bool, UseCodeCacheFlushing, true, \ |
1202 | 3195 "Attempt to clean the code cache before shutting off compiler") \ |
3196 \ | |
3197 product(intx, MinCodeCacheFlushingInterval, 30, \ | |
3198 "Min number of seconds between code cache cleaning sessions") \ | |
3199 \ | |
3200 product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ | |
3201 "When less than X space left, start code cache cleaning") \ | |
3202 \ | |
10206
0cfa93c2fcc4
8012547: Code cache flushing can get stuck reclaming of memory
neliasso
parents:
10197
diff
changeset
|
3203 product(uintx, CodeCacheFlushingFraction, 2, \ |
0cfa93c2fcc4
8012547: Code cache flushing can get stuck reclaming of memory
neliasso
parents:
10197
diff
changeset
|
3204 "Fraction of the code cache that is flushed when full") \ |
0cfa93c2fcc4
8012547: Code cache flushing can get stuck reclaming of memory
neliasso
parents:
10197
diff
changeset
|
3205 \ |
0 | 3206 /* interpreter debugging */ \ |
3207 develop(intx, BinarySwitchThreshold, 5, \ | |
3208 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
3209 "switch") \ | |
3210 \ | |
3211 develop(intx, StopInterpreterAt, 0, \ | |
3212 "Stops interpreter execution at specified bytecode number") \ | |
3213 \ | |
3214 develop(intx, TraceBytecodesAt, 0, \ | |
3215 "Traces bytecodes starting with specified bytecode number") \ | |
3216 \ | |
3217 /* compiler interface */ \ | |
3218 develop(intx, CIStart, 0, \ | |
3219 "the id of the first compilation to permit") \ | |
3220 \ | |
3221 develop(intx, CIStop, -1, \ | |
3222 "the id of the last compilation to permit") \ | |
3223 \ | |
3224 develop(intx, CIStartOSR, 0, \ | |
3225 "the id of the first osr compilation to permit " \ | |
3226 "(CICountOSR must be on)") \ | |
3227 \ | |
3228 develop(intx, CIStopOSR, -1, \ | |
3229 "the id of the last osr compilation to permit " \ | |
3230 "(CICountOSR must be on)") \ | |
3231 \ | |
3232 develop(intx, CIBreakAtOSR, -1, \ | |
3233 "id of osr compilation to break at") \ | |
3234 \ | |
3235 develop(intx, CIBreakAt, -1, \ | |
3236 "id of compilation to break at") \ | |
3237 \ | |
3238 product(ccstrlist, CompileOnly, "", \ | |
3239 "List of methods (pkg/class.name) to restrict compilation to") \ | |
3240 \ | |
3241 product(ccstr, CompileCommandFile, NULL, \ | |
3242 "Read compiler commands from this file [.hotspot_compiler]") \ | |
3243 \ | |
3244 product(ccstrlist, CompileCommand, "", \ | |
3245 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
3246 \ | |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3247 develop(bool, ReplayCompiles, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3248 "Enable replay of compilations from ReplayDataFile") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3249 \ |
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3250 product(ccstr, ReplayDataFile, NULL, \ |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3251 "File containing compilation replay information" \ |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3252 "[default: ./replay_pid%p.log] (%p replaced with pid)") \ |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3253 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3254 develop(intx, ReplaySuppressInitializers, 2, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3255 "Controls handling of class initialization during replay" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3256 "0 - don't do anything special" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3257 "1 - treat all class initializers as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3258 "2 - treat class initializers for application classes as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3259 "3 - allow all class initializers to run during bootstrap but" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3260 " pretend they are empty after starting replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3261 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3262 develop(bool, ReplayIgnoreInitErrors, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3263 "Ignore exceptions thrown during initialization for replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3264 \ |
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3265 product(bool, DumpReplayDataOnError, true, \ |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3266 "Record replay data for crashing compiler threads") \ |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3267 \ |
0 | 3268 product(bool, CICompilerCountPerCPU, false, \ |
3269 "1 compiler thread for log(N CPUs)") \ | |
3270 \ | |
3271 develop(intx, CIFireOOMAt, -1, \ | |
3272 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
3273 "(non-negative value throws OOM after this many CI accesses " \ | |
3274 "in each compile)") \ | |
10197
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3275 notproduct(intx, CICrashAt, -1, \ |
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3276 "id of compilation to trigger assert in compiler thread for " \ |
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3277 "the purpose of testing, e.g. generation of replay data") \ |
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3278 notproduct(bool, CIObjectFactoryVerify, false, \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3279 "enable potentially expensive verification in ciObjectFactory") \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3280 \ |
0 | 3281 /* Priorities */ \ |
3282 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
3283 \ | |
3284 product(intx, ThreadPriorityPolicy, 0, \ | |
3285 "0 : Normal. "\ | |
3286 " VM chooses priorities that are appropriate for normal "\ | |
3287 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
3288 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
3289 " map to lower native priority values. On Windows applications"\ | |
3290 " are allowed to use higher native priorities. However, with "\ | |
3291 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
3292 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
3293 " interfere with system threads. On Linux thread priorities "\ | |
3294 " are ignored because the OS does not support static priority "\ | |
3295 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
3296 " non-root, non-realtime applications. "\ | |
3297 "1 : Aggressive. "\ | |
3298 " Java thread priorities map over to the entire range of "\ | |
3299 " native thread priorities. Higher Java thread priorities map "\ | |
3300 " to higher native thread priorities. This policy should be "\ | |
3301 " used with care, as sometimes it can cause performance "\ | |
3302 " degradation in the application and/or the entire system. On "\ | |
3303 " Linux this policy requires root privilege.") \ | |
3304 \ | |
3305 product(bool, ThreadPriorityVerbose, false, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3306 "Print priority changes") \ |
0 | 3307 \ |
3308 product(intx, DefaultThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3309 "The native priority at which threads run if not elsewhere " \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3310 "specified (-1 means no change)") \ |
0 | 3311 \ |
3312 product(intx, CompilerThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3313 "The native priority at which compiler threads should run " \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3314 "(-1 means no change)") \ |
0 | 3315 \ |
3316 product(intx, VMThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3317 "The native priority at which the VM thread should run " \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3318 "(-1 means no change)") \ |
0 | 3319 \ |
3320 product(bool, CompilerThreadHintNoPreempt, true, \ | |
3321 "(Solaris only) Give compiler threads an extra quanta") \ | |
3322 \ | |
3323 product(bool, VMThreadHintNoPreempt, false, \ | |
3324 "(Solaris only) Give VM thread an extra quanta") \ | |
3325 \ | |
3326 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3327 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3328 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3329 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3330 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3331 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3332 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3333 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3334 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3335 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
3336 \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3337 experimental(bool, UseCriticalJavaThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3338 "Java thread priority 10 maps to critical scheduling priority") \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3339 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3340 experimental(bool, UseCriticalCompilerThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3341 "Compiler thread(s) run at critical scheduling priority") \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3342 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3343 experimental(bool, UseCriticalCMSThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3344 "ConcurrentMarkSweep thread runs at critical scheduling priority")\ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3345 \ |
0 | 3346 /* compiler debugging */ \ |
3347 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
3348 "First class to consider when using +CompileTheWorld") \ | |
3349 \ | |
3350 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
3351 "Last class to consider when using +CompileTheWorld") \ | |
3352 \ | |
3353 develop(intx, NewCodeParameter, 0, \ | |
3354 "Testing Only: Create a dedicated integer parameter before " \ | |
3355 "putback") \ | |
3356 \ | |
3357 /* new oopmap storage allocation */ \ | |
3358 develop(intx, MinOopMapAllocation, 8, \ | |
3359 "Minimum number of OopMap entries in an OopMapSet") \ | |
3360 \ | |
3361 /* Background Compilation */ \ | |
3362 develop(intx, LongCompileThreshold, 50, \ | |
3363 "Used with +TraceLongCompiles") \ | |
3364 \ | |
3365 product(intx, StarvationMonitorInterval, 200, \ | |
3366 "Pause between each check in ms") \ | |
3367 \ | |
3368 /* recompilation */ \ | |
3369 product_pd(intx, CompileThreshold, \ | |
3370 "number of interpreted method invocations before (re-)compiling") \ | |
3371 \ | |
3372 product_pd(intx, BackEdgeThreshold, \ | |
3373 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
3374 \ | |
1783 | 3375 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
3376 "Interpreter (tier 0) invocation notification frequency.") \ | |
3377 \ | |
3378 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
3379 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3380 \ | |
3381 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
3382 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3383 "frequency.") \ | |
3384 \ | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3385 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3386 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3387 \ |
1783 | 3388 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
3389 "Interpreter (tier 0) invocation notification frequency.") \ | |
3390 \ | |
3391 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
3392 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3393 \ | |
3394 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
3395 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3396 "frequency.") \ | |
3397 \ | |
3398 product(intx, Tier2CompileThreshold, 0, \ | |
3399 "threshold at which tier 2 compilation is invoked") \ | |
3400 \ | |
3401 product(intx, Tier2BackEdgeThreshold, 0, \ | |
3402 "Back edge threshold at which tier 2 compilation is invoked") \ | |
3403 \ | |
3404 product(intx, Tier3InvocationThreshold, 200, \ | |
3405 "Compile if number of method invocations crosses this " \ | |
3406 "threshold") \ | |
3407 \ | |
3408 product(intx, Tier3MinInvocationThreshold, 100, \ | |
3409 "Minimum invocation to compile at tier 3") \ | |
3410 \ | |
3411 product(intx, Tier3CompileThreshold, 2000, \ | |
3412 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
3413 "minimum must be satisfied.") \ | |
3414 \ | |
4819 | 3415 product(intx, Tier3BackEdgeThreshold, 60000, \ |
1783 | 3416 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
3417 \ | |
3418 product(intx, Tier4InvocationThreshold, 5000, \ | |
3419 "Compile if number of method invocations crosses this " \ | |
3420 "threshold") \ | |
3421 \ | |
3422 product(intx, Tier4MinInvocationThreshold, 600, \ | |
3423 "Minimum invocation to compile at tier 4") \ | |
3424 \ | |
3425 product(intx, Tier4CompileThreshold, 15000, \ | |
3426 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
3427 "minimum must be satisfied.") \ | |
3428 \ | |
3429 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
3430 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
3431 \ | |
3432 product(intx, Tier3DelayOn, 5, \ | |
3433 "If C2 queue size grows over this amount per compiler thread " \ | |
3434 "stop compiling at tier 3 and start compiling at tier 2") \ | |
3435 \ | |
3436 product(intx, Tier3DelayOff, 2, \ | |
3437 "If C2 queue size is less than this amount per compiler thread " \ | |
3438 "allow methods compiled at tier 2 transition to tier 3") \ | |
3439 \ | |
3440 product(intx, Tier3LoadFeedback, 5, \ | |
3441 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
3442 "reaches this amount per compiler thread") \ | |
3443 \ | |
3444 product(intx, Tier4LoadFeedback, 3, \ | |
3445 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
3446 "reaches this amount per compiler thread") \ | |
3447 \ | |
3448 product(intx, TieredCompileTaskTimeout, 50, \ | |
3449 "Kill compile task if method was not used within " \ | |
3450 "given timeout in milliseconds") \ | |
3451 \ | |
3452 product(intx, TieredStopAtLevel, 4, \ | |
3453 "Stop at given compilation level") \ | |
3454 \ | |
3455 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
3456 "Start profiling in interpreter if the counters exceed tier 3" \ | |
3457 "thresholds by the specified percentage") \ | |
3458 \ | |
10319
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3459 product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \ |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3460 "Increase the compile threshold for C1 compilation if the code" \ |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3461 "cache is filled by the specified percentage.") \ |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3462 \ |
1783 | 3463 product(intx, TieredRateUpdateMinTime, 1, \ |
3464 "Minimum rate sampling interval (in milliseconds)") \ | |
3465 \ | |
3466 product(intx, TieredRateUpdateMaxTime, 25, \ | |
3467 "Maximum rate sampling interval (in milliseconds)") \ | |
0 | 3468 \ |
3469 product_pd(bool, TieredCompilation, \ | |
1783 | 3470 "Enable tiered compilation") \ |
3471 \ | |
3472 product(bool, PrintTieredEvents, false, \ | |
3473 "Print tiered events notifications") \ | |
0 | 3474 \ |
3475 product_pd(intx, OnStackReplacePercentage, \ | |
3476 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3477 "of CompileThreshold) before (re-)compiling OSR code") \ | |
3478 \ | |
3479 product(intx, InterpreterProfilePercentage, 33, \ | |
3480 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3481 "of CompileThreshold) before profiling in the interpreter") \ | |
3482 \ | |
3483 develop(intx, MaxRecompilationSearchLength, 10, \ | |
3484 "max. # frames to inspect searching for recompilee") \ | |
3485 \ | |
3486 develop(intx, MaxInterpretedSearchLength, 3, \ | |
3487 "max. # interp. frames to skip when searching for recompilee") \ | |
3488 \ | |
3489 develop(intx, DesiredMethodLimit, 8000, \ | |
3490 "desired max. method size (in bytecodes) after inlining") \ | |
3491 \ | |
3492 develop(intx, HugeMethodLimit, 8000, \ | |
3493 "don't compile methods larger than this if " \ | |
3494 "+DontCompileHugeMethods") \ | |
3495 \ | |
3496 /* New JDK 1.4 reflection implementation */ \ | |
3497 \ | |
3498 develop(bool, UseNewReflection, true, \ | |
3499 "Temporary flag for transition to reflection based on dynamic " \ | |
3500 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
3501 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
3502 "changes were needed") \ | |
3503 \ | |
3504 develop(bool, VerifyReflectionBytecodes, false, \ | |
3505 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
3506 "in situations like that described in 4486457 or for " \ | |
3507 "constructors generated for serialization, so can not be enabled "\ | |
3508 "in product.") \ | |
3509 \ | |
3510 product(bool, ReflectionWrapResolutionErrors, true, \ | |
3511 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
3512 "in InvocationTargetException. See 6531596") \ | |
3513 \ | |
3514 \ | |
3515 develop(intx, FastSuperclassLimit, 8, \ | |
3516 "Depth of hardwired instanceof accelerator array") \ | |
3517 \ | |
3518 /* Properties for Java libraries */ \ | |
3519 \ | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6197
diff
changeset
|
3520 product(uintx, MaxDirectMemorySize, 0, \ |
0 | 3521 "Maximum total size of NIO direct-buffer allocations") \ |
3522 \ | |
3523 /* temporary developer defined flags */ \ | |
3524 \ | |
3525 diagnostic(bool, UseNewCode, false, \ | |
3526 "Testing Only: Use the new version while testing") \ | |
3527 \ | |
3528 diagnostic(bool, UseNewCode2, false, \ | |
3529 "Testing Only: Use the new version while testing") \ | |
3530 \ | |
3531 diagnostic(bool, UseNewCode3, false, \ | |
3532 "Testing Only: Use the new version while testing") \ | |
3533 \ | |
3534 /* flags for performance data collection */ \ | |
3535 \ | |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3536 product(bool, UsePerfData, falseInEmbedded, \ |
0 | 3537 "Flag to disable jvmstat instrumentation for performance testing" \ |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3538 "and problem isolation purposes.") \ |
0 | 3539 \ |
3540 product(bool, PerfDataSaveToFile, false, \ | |
3541 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
3542 \ | |
3543 product(ccstr, PerfDataSaveFile, NULL, \ | |
3544 "Save PerfData memory to the specified absolute pathname," \ | |
3545 "%p in the file name if present will be replaced by pid") \ | |
3546 \ | |
3547 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
3548 "Data sampling interval in milliseconds") \ | |
3549 \ | |
3550 develop(bool, PerfTraceDataCreation, false, \ | |
3551 "Trace creation of Performance Data Entries") \ | |
3552 \ | |
3553 develop(bool, PerfTraceMemOps, false, \ | |
3554 "Trace PerfMemory create/attach/detach calls") \ | |
3555 \ | |
3556 product(bool, PerfDisableSharedMem, false, \ | |
3557 "Store performance data in standard memory") \ | |
3558 \ | |
3559 product(intx, PerfDataMemorySize, 32*K, \ | |
3560 "Size of performance data memory region. Will be rounded " \ | |
3561 "up to a multiple of the native os page size.") \ | |
3562 \ | |
3563 product(intx, PerfMaxStringConstLength, 1024, \ | |
3564 "Maximum PerfStringConstant string length before truncation") \ | |
3565 \ | |
3566 product(bool, PerfAllowAtExitRegistration, false, \ | |
3567 "Allow registration of atexit() methods") \ | |
3568 \ | |
3569 product(bool, PerfBypassFileSystemCheck, false, \ | |
3570 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
3571 \ | |
3572 product(intx, UnguardOnExecutionViolation, 0, \ | |
3573 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
3574 "0=off, 1=conservative, 2=aggressive") \ | |
3575 \ | |
3576 /* Serviceability Support */ \ | |
3577 \ | |
3578 product(bool, ManagementServer, false, \ | |
3579 "Create JMX Management Server") \ | |
3580 \ | |
3581 product(bool, DisableAttachMechanism, false, \ | |
3582 "Disable mechanism that allows tools to attach to this VM") \ | |
3583 \ | |
3584 product(bool, StartAttachListener, false, \ | |
3585 "Always start Attach Listener at VM startup") \ | |
3586 \ | |
3587 manageable(bool, PrintConcurrentLocks, false, \ | |
3588 "Print java.util.concurrent locks in thread dump") \ | |
3589 \ | |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3590 product(bool, TransmitErrorReport, false, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3591 "Enable error report transmission on erroneous termination") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3592 \ |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3593 product(ccstr, ErrorReportServer, NULL, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3594 "Override built-in error report server address") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3595 \ |
0 | 3596 /* Shared spaces */ \ |
3597 \ | |
3598 product(bool, UseSharedSpaces, true, \ | |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3599 "Use shared spaces for metadata") \ |
0 | 3600 \ |
3601 product(bool, RequireSharedSpaces, false, \ | |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3602 "Require shared spaces for metadata") \ |
0 | 3603 \ |
3604 product(bool, DumpSharedSpaces, false, \ | |
3605 "Special mode: JVM reads a class list, loads classes, builds " \ | |
3606 "shared spaces, and dumps the shared spaces to a file to be " \ | |
3607 "used in future JVM runs.") \ | |
3608 \ | |
3609 product(bool, PrintSharedSpaces, false, \ | |
3610 "Print usage of shared spaces") \ | |
3611 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3612 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(16*M), \ |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3613 "Size of read-write space for metadata (in bytes)") \ |
0 | 3614 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3615 product(uintx, SharedReadOnlySize, NOT_LP64(12*M) LP64_ONLY(16*M), \ |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3616 "Size of read-only space for metadata (in bytes)") \ |
0 | 3617 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3618 product(uintx, SharedMiscDataSize, NOT_LP64(2*M) LP64_ONLY(4*M), \ |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3619 "Size of the shared miscellaneous data area (in bytes)") \ |
0 | 3620 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3621 product(uintx, SharedMiscCodeSize, 120*K, \ |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3622 "Size of the shared miscellaneous code area (in bytes)") \ |
0 | 3623 \ |
8804
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3624 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3625 NOT_LP64(LINUX_ONLY(2*G) NOT_LINUX(0)), \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3626 "Address to allocate shared memory region for class data") \ |
0 | 3627 \ |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3628 diagnostic(bool, EnableInvokeDynamic, true, \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3629 "support JSR 292 (method handles, invokedynamic, " \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3630 "anonymous classes") \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3631 \ |
3757
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3632 diagnostic(bool, PrintMethodHandleStubs, false, \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3633 "Print generated stub code for method handles") \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3634 \ |
710 | 3635 develop(bool, TraceMethodHandles, false, \ |
3636 "trace internal method handle operations") \ | |
3637 \ | |
3638 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
3639 "perform extra checks when constructing method handles") \ | |
3640 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3641 diagnostic(bool, ShowHiddenFrames, false, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3642 "show method handle implementation frames (usually hidden)") \ |
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3643 \ |
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3644 experimental(bool, TrustFinalNonStaticFields, false, \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3645 "trust final non-static declarations for constant folding") \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3646 \ |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3647 develop(bool, TraceInvokeDynamic, false, \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3648 "trace internal invoke dynamic operations") \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3649 \ |
0 | 3650 diagnostic(bool, PauseAtStartup, false, \ |
3651 "Causes the VM to pause at startup time and wait for the pause " \ | |
3652 "file to be removed (default: ./vm.paused.<pid>)") \ | |
3653 \ | |
3654 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
3655 "The file to create and for whose removal to await when pausing " \ | |
3656 "at startup. (default: ./vm.paused.<pid>)") \ | |
3657 \ | |
2302
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3658 diagnostic(bool, PauseAtExit, false, \ |
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3659 "Pause and wait for keypress on exit if a debugger is attached") \ |
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3660 \ |
0 | 3661 product(bool, ExtendedDTraceProbes, false, \ |
3662 "Enable performance-impacting dtrace probes") \ | |
3663 \ | |
3664 product(bool, DTraceMethodProbes, false, \ | |
3665 "Enable dtrace probes for method-entry and method-exit") \ | |
3666 \ | |
3667 product(bool, DTraceAllocProbes, false, \ | |
3668 "Enable dtrace probes for object allocation") \ | |
3669 \ | |
3670 product(bool, DTraceMonitorProbes, false, \ | |
3671 "Enable dtrace probes for monitor events") \ | |
3672 \ | |
3673 product(bool, RelaxAccessControlCheck, false, \ | |
3674 "Relax the access control checks in the verifier") \ | |
3675 \ | |
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3676 diagnostic(bool, PrintDTraceDOF, false, \ |
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3677 "Print the DTrace DOF passed to the system for JSDT probes") \ |
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3678 \ |
6982
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3679 product(uintx, StringTableSize, defaultStringTableSize, \ |
2378 | 3680 "Number of buckets in the interned String table") \ |
3681 \ | |
6934 | 3682 develop(bool, TraceDefaultMethods, false, \ |
3683 "Trace the default method processing steps") \ | |
3684 \ | |
3685 develop(bool, ParseAllGenericSignatures, false, \ | |
3686 "Parse all generic signatures while classloading") \ | |
3687 \ | |
3688 develop(bool, VerifyGenericSignatures, false, \ | |
3689 "Abort VM on erroneous or inconsistent generic signatures") \ | |
3690 \ | |
11104
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3691 product(bool, ParseGenericDefaults, false, \ |
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3692 "Parse generic signatures for default method handling") \ |
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3693 \ |
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3694 product(bool, UseVMInterruptibleIO, false, \ |
0 | 3695 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
449
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3696 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
5915 | 3697 " of this flag is true for JDK 6 and earlier") \ |
3698 \ | |
3699 diagnostic(bool, WhiteBoxAPI, false, \ | |
6064
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3700 "Enable internal testing APIs") \ |
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3701 \ |
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3702 product(bool, PrintGCCause, true, \ |
8702 | 3703 "Include GC cause in GC logging") \ |
3704 \ | |
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3705 product(bool , AllowNonVirtualCalls, false, \ |
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3706 "Obey the ACC_SUPER flag and allow invokenonvirtual calls") \ |
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3707 \ |
10270
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3708 diagnostic(ccstr, SharedArchiveFile, NULL, \ |
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3709 "Override the default location of the CDS archive file") \ |
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3710 \ |
9073
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3711 experimental(uintx, ArrayAllocatorMallocLimit, \ |
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3712 SOLARIS_ONLY(64*K) NOT_SOLARIS(max_uintx), \ |
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3713 "Allocation less than this value will be allocated " \ |
10405 | 3714 "using malloc. Larger allocations will use mmap.") \ |
3715 \ | |
3716 product(bool, EnableTracing, false, \ | |
3717 "Enable event-based tracing") \ | |
3718 product(bool, UseLockedTracing, false, \ | |
3719 "Use locked-tracing when doing event-based tracing") | |
3720 | |
0 | 3721 |
3722 /* | |
3723 * Macros for factoring of globals | |
3724 */ | |
3725 | |
3726 // Interface macros | |
3727 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3728 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; | |
3729 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; | |
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3730 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3731 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
3732 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; | |
3733 #ifdef PRODUCT | |
3734 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; | |
3735 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; | |
3736 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3737 #else | |
3738 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; | |
3739 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; | |
3740 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3741 #endif | |
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3742 // Special LP64 flags, product only needed for now. |
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3743 #ifdef _LP64 |
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3744 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
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3745 #else |
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3746 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
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3747 #endif // _LP64 |
0 | 3748 |
3749 // Implementation macros | |
3750 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; | |
3751 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; | |
3752 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; | |
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3753 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
0 | 3754 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
3755 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; | |
3756 #ifdef PRODUCT | |
3757 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ | |
3758 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ | |
3759 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3760 #else | |
3761 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; | |
3762 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; | |
3763 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; | |
3764 #endif | |
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3765 #ifdef _LP64 |
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3766 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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3767 #else |
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3768 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
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3769 #endif // _LP64 |
0 | 3770 |
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3771 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) |
0 | 3772 |
3773 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
1972 | 3774 |
6633
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3775 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) |
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3776 |
4107
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|
3777 // Extensions |
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|
3778 |
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|
3779 #include "runtime/globals_ext.hpp" |
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3780 |
1972 | 3781 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |