Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.hpp @ 9073:83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
Summary: Allow task queues to be mmapped instead of malloced on Solaris
Reviewed-by: coleenp, jmasa, johnc, tschatzl
author | brutisso |
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date | Mon, 08 Apr 2013 07:49:28 +0200 |
parents | 68fe50d4f1d5 |
children | 89e4d67fdd2a b06ac540229e e12c9b3740db |
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(uintx,MetaspaceSize, ScaleForWordSize(4*M)); |
0 | 179 define_pd_global(bool, NeverActAsServerClassMachine, true); |
1064 | 180 define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
0 | 181 #define CI_COMPILER_COUNT 0 |
182 #else | |
183 | |
184 #ifdef COMPILER2 | |
185 #define CI_COMPILER_COUNT 2 | |
186 #else | |
187 #define CI_COMPILER_COUNT 1 | |
188 #endif // COMPILER2 | |
189 | |
190 #endif // no compilers | |
191 | |
192 // string type aliases used only in this file | |
193 typedef const char* ccstr; | |
194 typedef const char* ccstrlist; // represents string arguments which accumulate | |
195 | |
196 enum FlagValueOrigin { | |
197 DEFAULT = 0, | |
198 COMMAND_LINE = 1, | |
199 ENVIRON_VAR = 2, | |
200 CONFIG_FILE = 3, | |
201 MANAGEMENT = 4, | |
202 ERGONOMIC = 5, | |
203 ATTACH_ON_DEMAND = 6, | |
204 INTERNAL = 99 | |
205 }; | |
206 | |
207 struct Flag { | |
208 const char *type; | |
209 const char *name; | |
210 void* addr; | |
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211 |
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212 NOT_PRODUCT(const char *doc;) |
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213 |
0 | 214 const char *kind; |
215 FlagValueOrigin origin; | |
216 | |
217 // points to all Flags static array | |
218 static Flag *flags; | |
219 | |
220 // number of flags | |
221 static size_t numFlags; | |
222 | |
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223 static Flag* find_flag(char* name, size_t length, bool allow_locked = false); |
0 | 224 |
225 bool is_bool() const { return strcmp(type, "bool") == 0; } | |
226 bool get_bool() const { return *((bool*) addr); } | |
227 void set_bool(bool value) { *((bool*) addr) = value; } | |
228 | |
229 bool is_intx() const { return strcmp(type, "intx") == 0; } | |
230 intx get_intx() const { return *((intx*) addr); } | |
231 void set_intx(intx value) { *((intx*) addr) = value; } | |
232 | |
233 bool is_uintx() const { return strcmp(type, "uintx") == 0; } | |
234 uintx get_uintx() const { return *((uintx*) addr); } | |
235 void set_uintx(uintx value) { *((uintx*) addr) = value; } | |
236 | |
1064 | 237 bool is_uint64_t() const { return strcmp(type, "uint64_t") == 0; } |
238 uint64_t get_uint64_t() const { return *((uint64_t*) addr); } | |
239 void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; } | |
240 | |
0 | 241 bool is_double() const { return strcmp(type, "double") == 0; } |
242 double get_double() const { return *((double*) addr); } | |
243 void set_double(double value) { *((double*) addr) = value; } | |
244 | |
245 bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; } | |
246 bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; } | |
247 ccstr get_ccstr() const { return *((ccstr*) addr); } | |
248 void set_ccstr(ccstr value) { *((ccstr*) addr) = value; } | |
249 | |
250 bool is_unlocker() const; | |
251 bool is_unlocked() const; | |
252 bool is_writeable() const; | |
253 bool is_external() const; | |
254 | |
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255 bool is_unlocker_ext() const; |
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256 bool is_unlocked_ext() const; |
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257 bool is_writeable_ext() const; |
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258 bool is_external_ext() const; |
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259 |
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260 void get_locked_message(char*, int) const; |
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261 void get_locked_message_ext(char*, int) const; |
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262 |
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263 void print_on(outputStream* st, bool withComments = false ); |
0 | 264 void print_as_flag(outputStream* st); |
265 }; | |
266 | |
267 // debug flags control various aspects of the VM and are global accessible | |
268 | |
269 // use FlagSetting to temporarily change some debug flag | |
270 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
271 // restored to previous value upon leaving scope | |
272 class FlagSetting { | |
273 bool val; | |
274 bool* flag; | |
275 public: | |
276 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
277 ~FlagSetting() { *flag = val; } | |
278 }; | |
279 | |
280 | |
281 class CounterSetting { | |
282 intx* counter; | |
283 public: | |
284 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
285 ~CounterSetting() { (*counter)--; } | |
286 }; | |
287 | |
288 | |
289 class IntFlagSetting { | |
290 intx val; | |
291 intx* flag; | |
292 public: | |
293 IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; } | |
294 ~IntFlagSetting() { *flag = val; } | |
295 }; | |
296 | |
297 | |
298 class DoubleFlagSetting { | |
299 double val; | |
300 double* flag; | |
301 public: | |
302 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
303 ~DoubleFlagSetting() { *flag = val; } | |
304 }; | |
305 | |
306 | |
307 class CommandLineFlags { | |
308 public: | |
309 static bool boolAt(char* name, size_t len, bool* value); | |
310 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
311 static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin); | |
312 static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); } | |
313 | |
314 static bool intxAt(char* name, size_t len, intx* value); | |
315 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
316 static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin); | |
317 static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); } | |
318 | |
319 static bool uintxAt(char* name, size_t len, uintx* value); | |
320 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
321 static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin); | |
322 static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); } | |
323 | |
1064 | 324 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
325 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
326 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin); | |
327 static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); } | |
328 | |
0 | 329 static bool doubleAt(char* name, size_t len, double* value); |
330 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
331 static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin); | |
332 static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); } | |
333 | |
334 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
335 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
336 static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin); | |
337 static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); } | |
338 | |
339 // Returns false if name is not a command line flag. | |
340 static bool wasSetOnCmdline(const char* name, bool* value); | |
4773 | 341 static void printSetFlags(outputStream* out); |
0 | 342 |
4773 | 343 static void printFlags(outputStream* out, bool withComments); |
0 | 344 |
345 static void verify() PRODUCT_RETURN; | |
346 }; | |
347 | |
348 // use this for flags that are true by default in the debug version but | |
349 // false in the optimized version, and vice versa | |
350 #ifdef ASSERT | |
351 #define trueInDebug true | |
352 #define falseInDebug false | |
353 #else | |
354 #define trueInDebug false | |
355 #define falseInDebug true | |
356 #endif | |
357 | |
358 // use this for flags that are true per default in the product build | |
359 // but false in development builds, and vice versa | |
360 #ifdef PRODUCT | |
361 #define trueInProduct true | |
362 #define falseInProduct false | |
363 #else | |
364 #define trueInProduct false | |
365 #define falseInProduct true | |
366 #endif | |
367 | |
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368 #ifdef JAVASE_EMBEDDED |
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369 #define falseInEmbedded false |
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370 #else |
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371 #define falseInEmbedded true |
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372 #endif |
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373 |
0 | 374 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
375 // product flags are always settable / visible | |
376 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
377 | |
378 // A flag must be declared with one of the following types: | |
379 // bool, intx, uintx, ccstr. | |
380 // The type "ccstr" is an alias for "const char*" and is used | |
381 // only in this file, because the macrology requires single-token type names. | |
382 | |
383 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
384 // They are to be used for VM quality assurance or field diagnosis | |
385 // of VM bugs. They are hidden so that users will not be encouraged to | |
386 // try them as if they were VM ordinary execution options. However, they | |
387 // are available in the product version of the VM. Under instruction | |
388 // from support engineers, VM customers can turn them on to collect | |
389 // diagnostic information about VM problems. To use a VM diagnostic | |
390 // option, you must first specify +UnlockDiagnosticVMOptions. | |
391 // (This master switch also affects the behavior of -Xprintflags.) | |
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392 // |
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393 // experimental flags are in support of features that are not |
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394 // part of the officially supported product, but are available |
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395 // for experimenting with. They could, for example, be performance |
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396 // features that may not have undergone full or rigorous QA, but which may |
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397 // help performance in some cases and released for experimentation |
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398 // by the community of users and developers. This flag also allows one to |
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399 // be able to build a fully supported product that nonetheless also |
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400 // ships with some unsupported, lightly tested, experimental features. |
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401 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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402 // UnlockExperimentalVMOptions flag, which allows the control and |
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403 // modification of the experimental flags. |
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404 // |
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405 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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406 // and they are not supported on production loads, except under explicit |
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407 // direction from support engineers. |
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408 // |
0 | 409 // manageable flags are writeable external product flags. |
410 // They are dynamically writeable through the JDK management interface | |
411 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
412 // These flags are external exported interface (see CCC). The list of | |
413 // manageable flags can be queried programmatically through the management | |
414 // interface. | |
415 // | |
416 // A flag can be made as "manageable" only if | |
417 // - the flag is defined in a CCC as an external exported interface. | |
418 // - the VM implementation supports dynamic setting of the flag. | |
419 // This implies that the VM must *always* query the flag variable | |
420 // and not reuse state related to the flag state at any given time. | |
421 // - you want the flag to be queried programmatically by the customers. | |
422 // | |
423 // product_rw flags are writeable internal product flags. | |
424 // They are like "manageable" flags but for internal/private use. | |
425 // The list of product_rw flags are internal/private flags which | |
426 // may be changed/removed in a future release. It can be set | |
427 // through the management interface to get/set value | |
428 // when the name of flag is supplied. | |
429 // | |
430 // A flag can be made as "product_rw" only if | |
431 // - the VM implementation supports dynamic setting of the flag. | |
432 // This implies that the VM must *always* query the flag variable | |
433 // and not reuse state related to the flag state at any given time. | |
434 // | |
435 // Note that when there is a need to support develop flags to be writeable, | |
436 // it can be done in the same way as product_rw. | |
437 | |
350
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438 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
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439 \ |
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440 lp64_product(bool, UseCompressedOops, false, \ |
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441 "Use 32-bit object references in 64-bit VM " \ |
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442 "lp64_product means flag is always constant in 32 bit VM") \ |
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443 \ |
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444 lp64_product(bool, UseCompressedKlassPointers, false, \ |
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445 "Use 32-bit klass pointers in 64-bit VM " \ |
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446 "lp64_product means flag is always constant in 32 bit VM") \ |
0 | 447 \ |
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448 notproduct(bool, CheckCompressedOops, true, \ |
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449 "generate checks in encoding/decoding code in debug VM") \ |
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450 \ |
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451 product_pd(uintx, HeapBaseMinAddress, \ |
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452 "OS specific low limit for heap base address") \ |
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453 \ |
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454 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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455 "Print compressed oops base address and encoding mode") \ |
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456 \ |
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457 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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458 "Default object alignment in bytes, 8 is minimum") \ |
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459 \ |
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460 product(bool, AssumeMP, false, \ |
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461 "Instruct the VM to assume multiple processors are available") \ |
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462 \ |
0 | 463 /* UseMembar is theoretically a temp flag used for memory barrier \ |
464 * removal testing. It was supposed to be removed before FCS but has \ | |
465 * been re-added (see 6401008) */ \ | |
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466 product_pd(bool, UseMembar, \ |
0 | 467 "(Unstable) Issues membars on thread state transitions") \ |
468 \ | |
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469 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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470 * that don't support it. This will be replaced by processor detection \ |
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471 * logic. \ |
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472 */ \ |
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473 product(bool, UsePPCLWSYNC, true, \ |
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474 "Use lwsync instruction if true, else use slower sync") \ |
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475 \ |
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476 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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477 "Whether to clean the chunk pool asynchronously") \ |
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478 \ |
6818 | 479 /* Temporary: See 6948537 */ \ |
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480 experimental(bool, UseMemSetInBOT, true, \ |
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481 "(Unstable) uses memset in BOT updates in GC code") \ |
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482 \ |
0 | 483 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
350
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484 "Enable normal processing of flags relating to field diagnostics")\ |
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485 \ |
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486 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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487 "Enable normal processing of flags relating to experimental features")\ |
0 | 488 \ |
489 product(bool, JavaMonitorsInStackTrace, true, \ | |
490 "Print info. about Java monitor locks when the stacks are dumped")\ | |
491 \ | |
492 product_pd(bool, UseLargePages, \ | |
493 "Use large page memory") \ | |
494 \ | |
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495 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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496 "Allocate large pages individually for better affinity") \ |
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497 \ |
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498 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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499 "Fail large pages individual allocation") \ |
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500 \ |
0 | 501 develop(bool, TracePageSizes, false, \ |
502 "Trace page size selection and usage.") \ | |
503 \ | |
504 product(bool, UseNUMA, false, \ | |
505 "Use NUMA if available") \ | |
506 \ | |
3885 | 507 product(bool, UseNUMAInterleaving, false, \ |
508 "Interleave memory across NUMA nodes if available") \ | |
509 \ | |
510 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
511 "Granularity to use for NUMA interleaving on Windows OS") \ | |
512 \ | |
462
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513 product(bool, ForceNUMA, false, \ |
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514 "Force NUMA optimizations on single-node/UMA systems") \ |
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515 \ |
0 | 516 product(intx, NUMAChunkResizeWeight, 20, \ |
517 "Percentage (0-100) used to weight the current sample when " \ | |
518 "computing exponentially decaying average for " \ | |
519 "AdaptiveNUMAChunkSizing") \ | |
520 \ | |
521 product(intx, NUMASpaceResizeRate, 1*G, \ | |
522 "Do not reallocate more that this amount per collection") \ | |
523 \ | |
524 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
525 "Enable adaptive chunk sizing for NUMA") \ | |
526 \ | |
527 product(bool, NUMAStats, false, \ | |
528 "Print NUMA stats in detailed heap information") \ | |
529 \ | |
530 product(intx, NUMAPageScanRate, 256, \ | |
531 "Maximum number of pages to include in the page scan procedure") \ | |
532 \ | |
533 product_pd(bool, NeedsDeoptSuspend, \ | |
534 "True for register window machines (sparc/ia64)") \ | |
535 \ | |
536 product(intx, UseSSE, 99, \ | |
537 "Highest supported SSE instructions set on x86/x64") \ | |
538 \ | |
6894 | 539 product(bool, UseAES, false, \ |
540 "Control whether AES instructions can be used on x86/x64") \ | |
541 \ | |
0 | 542 product(uintx, LargePageSizeInBytes, 0, \ |
543 "Large page size (0 to let VM choose the page size") \ | |
544 \ | |
545 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
546 "Use large pages if max heap is at least this big") \ | |
547 \ | |
548 product(bool, ForceTimeHighResolution, false, \ | |
549 "Using high time resolution(For Win32 only)") \ | |
550 \ | |
551 develop(bool, TraceItables, false, \ | |
552 "Trace initialization and use of itables") \ | |
553 \ | |
554 develop(bool, TracePcPatching, false, \ | |
555 "Trace usage of frame::patch_pc") \ | |
556 \ | |
557 develop(bool, TraceJumps, false, \ | |
558 "Trace assembly jumps in thread ring buffer") \ | |
559 \ | |
560 develop(bool, TraceRelocator, false, \ | |
561 "Trace the bytecode relocator") \ | |
562 \ | |
563 develop(bool, TraceLongCompiles, false, \ | |
564 "Print out every time compilation is longer than " \ | |
565 "a given threashold") \ | |
566 \ | |
567 develop(bool, SafepointALot, false, \ | |
568 "Generates a lot of safepoints. Works with " \ | |
569 "GuaranteedSafepointInterval") \ | |
570 \ | |
571 product_pd(bool, BackgroundCompilation, \ | |
572 "A thread requesting compilation is not blocked during " \ | |
573 "compilation") \ | |
574 \ | |
575 product(bool, PrintVMQWaitTime, false, \ | |
576 "Prints out the waiting time in VM operation queue") \ | |
577 \ | |
578 develop(bool, NoYieldsInMicrolock, false, \ | |
579 "Disable yields in microlock") \ | |
580 \ | |
581 develop(bool, TraceOopMapGeneration, false, \ | |
582 "Shows oopmap generation") \ | |
583 \ | |
584 product(bool, MethodFlushing, true, \ | |
585 "Reclamation of zombie and not-entrant methods") \ | |
586 \ | |
587 develop(bool, VerifyStack, false, \ | |
588 "Verify stack of each thread when it is entering a runtime call") \ | |
589 \ | |
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590 diagnostic(bool, ForceUnreachable, false, \ |
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591 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ |
0 | 592 \ |
593 notproduct(bool, StressDerivedPointers, false, \ | |
594 "Force scavenge when a derived pointers is detected on stack " \ | |
595 "after rtm call") \ | |
596 \ | |
597 develop(bool, TraceDerivedPointers, false, \ | |
598 "Trace traversal of derived pointers on stack") \ | |
599 \ | |
600 notproduct(bool, TraceCodeBlobStacks, false, \ | |
601 "Trace stack-walk of codeblobs") \ | |
602 \ | |
603 product(bool, PrintJNIResolving, false, \ | |
604 "Used to implement -v:jni") \ | |
605 \ | |
606 notproduct(bool, PrintRewrites, false, \ | |
607 "Print methods that are being rewritten") \ | |
608 \ | |
609 product(bool, UseInlineCaches, true, \ | |
610 "Use Inline Caches for virtual calls ") \ | |
611 \ | |
612 develop(bool, InlineArrayCopy, true, \ | |
613 "inline arraycopy native that is known to be part of " \ | |
614 "base library DLL") \ | |
615 \ | |
616 develop(bool, InlineObjectHash, true, \ | |
617 "inline Object::hashCode() native that is known to be part " \ | |
618 "of base library DLL") \ | |
619 \ | |
620 develop(bool, InlineNatives, true, \ | |
621 "inline natives that are known to be part of base library DLL") \ | |
622 \ | |
623 develop(bool, InlineMathNatives, true, \ | |
624 "inline SinD, CosD, etc.") \ | |
625 \ | |
626 develop(bool, InlineClassNatives, true, \ | |
627 "inline Class.isInstance, etc") \ | |
628 \ | |
629 develop(bool, InlineThreadNatives, true, \ | |
630 "inline Thread.currentThread, etc") \ | |
631 \ | |
632 develop(bool, InlineUnsafeOps, true, \ | |
633 "inline memory ops (native methods) from sun.misc.Unsafe") \ | |
634 \ | |
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635 product(bool, CriticalJNINatives, true, \ |
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636 "check for critical JNI entry points") \ |
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637 \ |
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638 notproduct(bool, StressCriticalJNINatives, false, \ |
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639 "Exercise register saving code in critical natives") \ |
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640 \ |
681 | 641 product(bool, UseSSE42Intrinsics, false, \ |
642 "SSE4.2 versions of intrinsics") \ | |
643 \ | |
6894 | 644 product(bool, UseAESIntrinsics, false, \ |
645 "use intrinsics for AES versions of crypto") \ | |
646 \ | |
0 | 647 develop(bool, TraceCallFixup, false, \ |
648 "traces all call fixups") \ | |
649 \ | |
650 develop(bool, DeoptimizeALot, false, \ | |
651 "deoptimize at every exit from the runtime system") \ | |
652 \ | |
434 | 653 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
0 | 654 "a comma separated list of bcis to deoptimize at") \ |
655 \ | |
656 product(bool, DeoptimizeRandom, false, \ | |
657 "deoptimize random frames on random exit from the runtime system")\ | |
658 \ | |
659 notproduct(bool, ZombieALot, false, \ | |
660 "creates zombies (non-entrant) at exit from the runt. system") \ | |
661 \ | |
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662 product(bool, UnlinkSymbolsALot, false, \ |
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663 "unlink unreferenced symbols from the symbol table at safepoints")\ |
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|
664 \ |
0 | 665 notproduct(bool, WalkStackALot, false, \ |
666 "trace stack (no print) at every exit from the runtime system") \ | |
667 \ | |
4006 | 668 product(bool, Debugging, false, \ |
0 | 669 "set when executing debug methods in debug.ccp " \ |
670 "(to prevent triggering assertions)") \ | |
671 \ | |
672 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
673 "Enable strict checks that safepoints cannot happen for threads " \ | |
674 "that used No_Safepoint_Verifier") \ | |
675 \ | |
676 notproduct(bool, VerifyLastFrame, false, \ | |
677 "Verify oops on last frame on entry to VM") \ | |
678 \ | |
679 develop(bool, TraceHandleAllocation, false, \ | |
680 "Prints out warnings when suspicious many handles are allocated") \ | |
681 \ | |
682 product(bool, UseCompilerSafepoints, true, \ | |
683 "Stop at safepoints in compiled code") \ | |
684 \ | |
685 product(bool, FailOverToOldVerifier, true, \ | |
686 "fail over to old verifier when split verifier fails") \ | |
687 \ | |
688 develop(bool, ShowSafepointMsgs, false, \ | |
689 "Show msg. about safepoint synch.") \ | |
690 \ | |
691 product(bool, SafepointTimeout, false, \ | |
692 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
693 "milliseconds if failed to reach safepoint") \ | |
694 \ | |
695 develop(bool, DieOnSafepointTimeout, false, \ | |
696 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
697 \ | |
698 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
699 /* typically, at most a few retries are needed */ \ | |
700 product(intx, SuspendRetryCount, 50, \ | |
701 "Maximum retry count for an external suspend request") \ | |
702 \ | |
703 product(intx, SuspendRetryDelay, 5, \ | |
704 "Milliseconds to delay per retry (* current_retry_count)") \ | |
705 \ | |
706 product(bool, AssertOnSuspendWaitFailure, false, \ | |
707 "Assert/Guarantee on external suspend wait failure") \ | |
708 \ | |
709 product(bool, TraceSuspendWaitFailures, false, \ | |
710 "Trace external suspend wait failures") \ | |
711 \ | |
712 product(bool, MaxFDLimit, true, \ | |
713 "Bump the number of file descriptors to max in solaris.") \ | |
714 \ | |
4872
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715 diagnostic(bool, LogEvents, true, \ |
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|
716 "Enable the various ring buffer event logs") \ |
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|
717 \ |
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|
718 diagnostic(intx, LogEventsBufferEntries, 10, \ |
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|
719 "Enable the various ring buffer event logs") \ |
0 | 720 \ |
721 product(bool, BytecodeVerificationRemote, true, \ | |
722 "Enables the Java bytecode verifier for remote classes") \ | |
723 \ | |
724 product(bool, BytecodeVerificationLocal, false, \ | |
725 "Enables the Java bytecode verifier for local classes") \ | |
726 \ | |
727 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
728 "Force exceptions on FP stack under/overflow") \ | |
729 \ | |
730 develop(bool, VerifyStackAtCalls, false, \ | |
731 "Verify that the stack pointer is unchanged after calls") \ | |
732 \ | |
733 develop(bool, TraceJavaAssertions, false, \ | |
734 "Trace java language assertions") \ | |
735 \ | |
736 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
737 "temporary - see javaClasses.cpp") \ | |
738 \ | |
739 notproduct(bool, PrintMallocFree, false, \ | |
740 "Trace calls to C heap malloc/free allocation") \ | |
741 \ | |
1681
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742 product(bool, PrintOopAddress, false, \ |
0 | 743 "Always print the location of the oop") \ |
744 \ | |
745 notproduct(bool, VerifyCodeCacheOften, false, \ | |
746 "Verify compiled-code cache often") \ | |
747 \ | |
748 develop(bool, ZapDeadCompiledLocals, false, \ | |
749 "Zap dead locals in compiler frames") \ | |
750 \ | |
751 notproduct(bool, ZapDeadLocalsOld, false, \ | |
752 "Zap dead locals (old version, zaps all frames when " \ | |
753 "entering the VM") \ | |
754 \ | |
755 notproduct(bool, CheckOopishValues, false, \ | |
756 "Warn if value contains oop ( requires ZapDeadLocals)") \ | |
757 \ | |
758 develop(bool, UseMallocOnly, false, \ | |
759 "use only malloc/free for allocation (no resource area/arena)") \ | |
760 \ | |
761 develop(bool, PrintMalloc, false, \ | |
762 "print all malloc/free calls") \ | |
763 \ | |
2250 | 764 develop(bool, PrintMallocStatistics, false, \ |
765 "print malloc/free statistics") \ | |
766 \ | |
0 | 767 develop(bool, ZapResourceArea, trueInDebug, \ |
768 "Zap freed resource/arena space with 0xABABABAB") \ | |
769 \ | |
770 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
771 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
772 \ | |
773 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
774 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
775 \ | |
1836
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776 notproduct(bool, ZapStackSegments, trueInDebug, \ |
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|
777 "Zap allocated/freed Stack segments with 0xFADFADED") \ |
894b1d7c7e01
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|
778 \ |
263
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|
779 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
0 | 780 "Zap unused heap space with 0xBAADBABE") \ |
781 \ | |
263
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782 develop(bool, TraceZapUnusedHeapArea, false, \ |
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|
783 "Trace zapping of unused heap space") \ |
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|
784 \ |
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|
785 develop(bool, CheckZapUnusedHeapArea, false, \ |
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786 "Check zapping of unused heap space") \ |
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|
787 \ |
481
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|
788 develop(bool, ZapFillerObjects, trueInDebug, \ |
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diff
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|
789 "Zap filler objects with 0xDEAFBABE") \ |
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|
790 \ |
0 | 791 develop(bool, PrintVMMessages, true, \ |
792 "Print vm messages on console") \ | |
793 \ | |
794 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
795 "Print the time the application has been running") \ | |
796 \ | |
797 product(bool, PrintGCApplicationStoppedTime, false, \ | |
798 "Print the time the application has been stopped") \ | |
799 \ | |
6605 | 800 diagnostic(bool, VerboseVerification, false, \ |
801 "Display detailed verification details") \ | |
802 \ | |
1490
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803 notproduct(uintx, ErrorHandlerTest, 0, \ |
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|
804 "If > 0, provokes an error after VM initialization; the value" \ |
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805 "determines which error to provoke. See test_error_handler()" \ |
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806 "in debug.cpp.") \ |
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|
807 \ |
0 | 808 develop(bool, Verbose, false, \ |
809 "Prints additional debugging information from other modes") \ | |
810 \ | |
811 develop(bool, PrintMiscellaneous, false, \ | |
812 "Prints uncategorized debugging information (requires +Verbose)") \ | |
813 \ | |
814 develop(bool, WizardMode, false, \ | |
815 "Prints much more debugging information") \ | |
816 \ | |
817 product(bool, ShowMessageBoxOnError, false, \ | |
818 "Keep process alive on VM fatal error") \ | |
819 \ | |
2204
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820 product(bool, CreateMinidumpOnCrash, false, \ |
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|
821 "Create minidump on VM fatal error") \ |
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|
822 \ |
0 | 823 product_pd(bool, UseOSErrorReporting, \ |
824 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
825 \ | |
826 product(bool, SuppressFatalErrorMessage, false, \ | |
827 "Do NO Fatal Error report [Avoid deadlock]") \ | |
828 \ | |
829 product(ccstrlist, OnError, "", \ | |
830 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
831 "for examples") \ | |
832 \ | |
833 product(ccstrlist, OnOutOfMemoryError, "", \ | |
834 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
835 \ | |
615
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|
836 manageable(bool, HeapDumpBeforeFullGC, false, \ |
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diff
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|
837 "Dump heap to file before any major stop-world GC") \ |
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6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
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diff
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|
838 \ |
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6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
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diff
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|
839 manageable(bool, HeapDumpAfterFullGC, false, \ |
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diff
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|
840 "Dump heap to file after any major stop-world GC") \ |
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|
841 \ |
0 | 842 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
843 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
844 \ | |
845 manageable(ccstr, HeapDumpPath, NULL, \ | |
846 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ | |
847 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ | |
848 "in the working directory)") \ | |
849 \ | |
850 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
851 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
852 "when the heap usage is larger than this") \ | |
853 \ | |
854 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
855 "Approximate segment size when generating a segmented heap dump") \ | |
856 \ | |
857 develop(bool, BreakAtWarning, false, \ | |
858 "Execute breakpoint upon encountering VM warning") \ | |
859 \ | |
860 develop(bool, TraceVMOperation, false, \ | |
861 "Trace vm operations") \ | |
862 \ | |
863 develop(bool, UseFakeTimers, false, \ | |
864 "Tells whether the VM should use system time or a fake timer") \ | |
865 \ | |
6197 | 866 product(ccstr, NativeMemoryTracking, "off", \ |
867 "Native memory tracking options") \ | |
868 \ | |
6770
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869 diagnostic(bool, PrintNMTStatistics, false, \ |
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870 "Print native memory tracking summary data if it is on") \ |
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871 \ |
8810
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|
872 diagnostic(bool, AutoShutdownNMT, true, \ |
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diff
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|
873 "Automatically shutdown native memory tracking under stress " \ |
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|
874 "situation. When set to false, native memory tracking tries to " \ |
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875 "stay alive at the expense of JVM performance") \ |
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|
876 \ |
0 | 877 diagnostic(bool, LogCompilation, false, \ |
878 "Log compilation activity in detail to hotspot.log or LogFile") \ | |
879 \ | |
880 product(bool, PrintCompilation, false, \ | |
881 "Print compilations") \ | |
882 \ | |
883 diagnostic(bool, TraceNMethodInstalls, false, \ | |
884 "Trace nmethod intallation") \ | |
885 \ | |
4119
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886 diagnostic(intx, ScavengeRootsInCode, 2, \ |
989
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887 "0: do not allow scavengable oops in the code cache; " \ |
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6863023: need non-perm oops in code cache for JSR 292
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888 "1: allow scavenging from the code cache; " \ |
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6863023: need non-perm oops in code cache for JSR 292
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|
889 "2: emit as many constants as the compiler can see") \ |
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6863023: need non-perm oops in code cache for JSR 292
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|
890 \ |
0 | 891 product(bool, AlwaysRestoreFPU, false, \ |
892 "Restore the FPU control word after every JNI call (expensive)") \ | |
893 \ | |
4064
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|
894 diagnostic(bool, PrintCompilation2, false, \ |
0 | 895 "Print additional statistics per compilation") \ |
896 \ | |
100
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|
897 diagnostic(bool, PrintAdapterHandlers, false, \ |
0 | 898 "Print code generated for i2c/c2i adapters") \ |
899 \ | |
6266
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|
900 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
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901 "Verify that i2c/c2i adapters are called properly") \ |
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|
902 \ |
1207
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|
903 develop(bool, VerifyAdapterSharing, false, \ |
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|
904 "Verify that the code for shared adapters is the equivalent") \ |
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|
905 \ |
100
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|
906 diagnostic(bool, PrintAssembly, false, \ |
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|
907 "Print assembly code (using external disassembler.so)") \ |
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|
908 \ |
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|
909 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
100
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|
910 "Options string passed to disassembler.so") \ |
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|
911 \ |
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|
912 diagnostic(bool, PrintNMethods, false, \ |
0 | 913 "Print assembly code for nmethods when generated") \ |
914 \ | |
100
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915 diagnostic(bool, PrintNativeNMethods, false, \ |
0 | 916 "Print assembly code for native nmethods when generated") \ |
917 \ | |
918 develop(bool, PrintDebugInfo, false, \ | |
919 "Print debug information for all nmethods when generated") \ | |
920 \ | |
921 develop(bool, PrintRelocations, false, \ | |
922 "Print relocation information for all nmethods when generated") \ | |
923 \ | |
924 develop(bool, PrintDependencies, false, \ | |
925 "Print dependency information for all nmethods when generated") \ | |
926 \ | |
927 develop(bool, PrintExceptionHandlers, false, \ | |
928 "Print exception handler tables for all nmethods when generated") \ | |
929 \ | |
7428
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930 develop(bool, StressCompiledExceptionHandlers, false, \ |
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|
931 "Exercise compiled exception handlers") \ |
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|
932 \ |
0 | 933 develop(bool, InterceptOSException, false, \ |
934 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
935 "exception happens") \ | |
936 \ | |
7595
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|
937 product(bool, PrintCodeCache, false, \ |
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|
938 "Print the code cache memory usage when exiting") \ |
0 | 939 \ |
940 develop(bool, PrintCodeCache2, false, \ | |
7595
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|
941 "Print detailed usage info on the code cache when exiting") \ |
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8005204: Code Cache Reduction: command line options implementation
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changeset
|
942 \ |
9deda4d8e126
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|
943 product(bool, PrintCodeCacheOnCompilation, false, \ |
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|
944 "Print the code cache memory usage each time a method is compiled") \ |
0 | 945 \ |
100
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|
946 diagnostic(bool, PrintStubCode, false, \ |
0 | 947 "Print generated stub code") \ |
948 \ | |
949 product(bool, StackTraceInThrowable, true, \ | |
950 "Collect backtrace in throwable when exception happens") \ | |
951 \ | |
952 product(bool, OmitStackTraceInFastThrow, true, \ | |
953 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
954 \ | |
955 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
956 "Prints byte code statictics when dumping profiler output") \ | |
957 \ | |
958 product(bool, ProfilerRecordPC, false, \ | |
959 "Collects tick for each 16 byte interval of compiled code") \ | |
960 \ | |
1064 | 961 product(bool, ProfileVM, false, \ |
0 | 962 "Profiles ticks that fall within VM (either in the VM Thread " \ |
963 "or VM code called through stubs)") \ | |
964 \ | |
965 product(bool, ProfileIntervals, false, \ | |
966 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
967 \ | |
968 notproduct(bool, ProfilerCheckIntervals, false, \ | |
969 "Collect and print info on spacing of profiler ticks") \ | |
970 \ | |
971 develop(bool, PrintJVMWarnings, false, \ | |
972 "Prints warnings for unimplemented JVM functions") \ | |
973 \ | |
1870
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974 product(bool, PrintWarnings, true, \ |
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975 "Prints JVM warnings to output stream") \ |
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976 \ |
0 | 977 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
978 "Prints warnings for stalled SpinLocks") \ | |
979 \ | |
980 product(bool, RegisterFinalizersAtInit, true, \ | |
981 "Register finalizable objects at end of Object.<init> or " \ | |
1064 | 982 "after allocation") \ |
0 | 983 \ |
984 develop(bool, RegisterReferences, true, \ | |
985 "Tells whether the VM should register soft/weak/final/phantom " \ | |
986 "references") \ | |
987 \ | |
988 develop(bool, IgnoreRewrites, false, \ | |
989 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
990 "This is unsafe!") \ | |
991 \ | |
992 develop(bool, PrintCodeCacheExtension, false, \ | |
993 "Print extension of code cache") \ | |
994 \ | |
995 develop(bool, UsePrivilegedStack, true, \ | |
996 "Enable the security JVM functions") \ | |
997 \ | |
998 develop(bool, ProtectionDomainVerification, true, \ | |
999 "Verifies protection domain before resolution in system " \ | |
1000 "dictionary") \ | |
1001 \ | |
1002 product(bool, ClassUnloading, true, \ | |
1003 "Do unloading of classes") \ | |
1004 \ | |
1005 develop(bool, DisableStartThread, false, \ | |
1006 "Disable starting of additional Java threads " \ | |
1007 "(for debugging only)") \ | |
1008 \ | |
1009 develop(bool, MemProfiling, false, \ | |
1010 "Write memory usage profiling to log file") \ | |
1011 \ | |
1012 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
1013 "Prints the system dictionary at exit") \ | |
1014 \ | |
4864
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1015 experimental(intx, PredictedLoadedClassCount, 0, \ |
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1016 "Experimental: Tune loaded class cache starting size.") \ |
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1017 \ |
0 | 1018 diagnostic(bool, UnsyncloadClass, false, \ |
514 | 1019 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
1020 "class loader must call VM synchronized for findClass " \ | |
1021 "and defineClass.") \ | |
1022 \ | |
1023 product(bool, AlwaysLockClassLoader, false, \ | |
1024 "Require the VM to acquire the class loader lock before calling " \ | |
1025 "loadClass() even for class loaders registering " \ | |
1064 | 1026 "as parallel capable") \ |
514 | 1027 \ |
1028 product(bool, AllowParallelDefineClass, false, \ | |
1029 "Allow parallel defineClass requests for class loaders " \ | |
1064 | 1030 "registering as parallel capable") \ |
514 | 1031 \ |
1032 product(bool, MustCallLoadClassInternal, false, \ | |
1064 | 1033 "Call loadClassInternal() rather than loadClass()") \ |
0 | 1034 \ |
1035 product_pd(bool, DontYieldALot, \ | |
1036 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
1037 \ | |
1038 product_pd(bool, ConvertSleepToYield, \ | |
1039 "Converts sleep(0) to thread yield " \ | |
1040 "(may be off for SOLARIS to improve GUI)") \ | |
1041 \ | |
1042 product(bool, ConvertYieldToSleep, false, \ | |
1043 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
1044 "behavior (SOLARIS only)") \ | |
1045 \ | |
1046 product(bool, UseBoundThreads, true, \ | |
1047 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
1048 \ | |
1049 develop(bool, UseDetachedThreads, true, \ | |
1050 "Use detached threads that are recycled upon termination " \ | |
1051 "(for SOLARIS only)") \ | |
1052 \ | |
1053 product(bool, UseLWPSynchronization, true, \ | |
1054 "Use LWP-based instead of libthread-based synchronization " \ | |
1055 "(SPARC only)") \ | |
1056 \ | |
370
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1057 product(ccstr, SyncKnobs, NULL, \ |
0 | 1058 "(Unstable) Various monitor synchronization tunables") \ |
1059 \ | |
1060 product(intx, EmitSync, 0, \ | |
1061 "(Unsafe,Unstable) " \ | |
1062 " Controls emission of inline sync fast-path code") \ | |
1063 \ | |
1587 | 1064 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
1065 \ | |
1066 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
1067 \ | |
0 | 1068 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ |
1069 \ | |
1070 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
1071 \ | |
1072 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
1073 \ | |
7587 | 1074 product(intx, hashCode, 5, \ |
0 | 1075 "(Unstable) select hashCode generation algorithm" ) \ |
1076 \ | |
1077 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
1078 "(Unstable, Linux-specific)" \ | |
1079 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
1080 \ | |
1064 | 1081 product(bool, FilterSpuriousWakeups, true, \ |
1082 "Prevent spurious or premature wakeups from object.wait " \ | |
1083 "(Solaris only)") \ | |
0 | 1084 \ |
1085 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
1086 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
1087 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
1088 \ | |
1089 develop(bool, UsePthreads, false, \ | |
1090 "Use pthread-based instead of libthread-based synchronization " \ | |
1091 "(SPARC only)") \ | |
1092 \ | |
1093 product(bool, AdjustConcurrency, false, \ | |
1094 "call thr_setconcurrency at thread create time to avoid " \ | |
1095 "LWP starvation on MP systems (For Solaris Only)") \ | |
1096 \ | |
1097 product(bool, ReduceSignalUsage, false, \ | |
1098 "Reduce the use of OS signals in Java and/or the VM") \ | |
1099 \ | |
1100 develop_pd(bool, ShareVtableStubs, \ | |
1101 "Share vtable stubs (smaller code but worse branch prediction") \ | |
1102 \ | |
1103 develop(bool, LoadLineNumberTables, true, \ | |
1104 "Tells whether the class file parser loads line number tables") \ | |
1105 \ | |
1106 develop(bool, LoadLocalVariableTables, true, \ | |
1107 "Tells whether the class file parser loads local variable tables")\ | |
1108 \ | |
1109 develop(bool, LoadLocalVariableTypeTables, true, \ | |
1110 "Tells whether the class file parser loads local variable type tables")\ | |
1111 \ | |
1112 product(bool, AllowUserSignalHandlers, false, \ | |
1113 "Do not complain if the application installs signal handlers " \ | |
1114 "(Solaris & Linux only)") \ | |
1115 \ | |
1116 product(bool, UseSignalChaining, true, \ | |
1117 "Use signal-chaining to invoke signal handlers installed " \ | |
1118 "by the application (Solaris & Linux only)") \ | |
1119 \ | |
1120 product(bool, UseAltSigs, false, \ | |
1121 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
1064 | 1122 "internal signals (Solaris only)") \ |
0 | 1123 \ |
1124 product(bool, AllowJNIEnvProxy, false, \ | |
1125 "Allow JNIEnv proxies for jdbx") \ | |
1126 \ | |
1127 product(bool, JNIDetachReleasesMonitors, true, \ | |
1128 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
1129 \ | |
1130 product(bool, RestoreMXCSROnJNICalls, false, \ | |
1131 "Restore MXCSR when returning from JNI calls") \ | |
1132 \ | |
1133 product(bool, CheckJNICalls, false, \ | |
1134 "Verify all arguments to JNI calls") \ | |
1135 \ | |
1136 product(bool, UseFastJNIAccessors, true, \ | |
1137 "Use optimized versions of Get<Primitive>Field") \ | |
1138 \ | |
1139 product(bool, EagerXrunInit, false, \ | |
1140 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
1141 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
1142 \ | |
1143 product(bool, PreserveAllAnnotations, false, \ | |
1144 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
1145 \ | |
1146 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
1147 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
1148 \ | |
1149 product(bool, LazyBootClassLoader, true, \ | |
1150 "Enable/disable lazy opening of boot class path entries") \ | |
1151 \ | |
405 | 1152 product(bool, UseXMMForArrayCopy, false, \ |
1153 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
1154 \ | |
0 | 1155 product(intx, FieldsAllocationStyle, 1, \ |
1366
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1156 "0 - type based with oops first, 1 - with oops last, " \ |
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1157 "2 - oops in super and sub classes are together") \ |
0 | 1158 \ |
1159 product(bool, CompactFields, true, \ | |
1160 "Allocate nonstatic fields in gaps between previous fields") \ | |
1161 \ | |
1162 notproduct(bool, PrintCompactFieldsSavings, false, \ | |
1163 "Print how many words were saved with CompactFields") \ | |
1164 \ | |
7587 | 1165 notproduct(bool, PrintFieldLayout, false, \ |
1166 "Print field layout for each class") \ | |
1167 \ | |
1168 product(intx, ContendedPaddingWidth, 128, \ | |
1169 "How many bytes to pad the fields/classes marked @Contended with")\ | |
1170 \ | |
1171 product(bool, EnableContended, true, \ | |
1172 "Enable @Contended annotation support") \ | |
1173 \ | |
1174 product(bool, RestrictContended, true, \ | |
1175 "Restrict @Contended to trusted classes") \ | |
1176 \ | |
0 | 1177 product(bool, UseBiasedLocking, true, \ |
1178 "Enable biased locking in JVM") \ | |
1179 \ | |
1180 product(intx, BiasedLockingStartupDelay, 4000, \ | |
1181 "Number of milliseconds to wait before enabling biased locking") \ | |
1182 \ | |
1183 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
1184 "Print statistics of biased locking in JVM") \ | |
1185 \ | |
1186 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
1187 "Threshold of number of revocations per type to try to " \ | |
1188 "rebias all objects in the heap of that type") \ | |
1189 \ | |
1190 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
1191 "Threshold of number of revocations per type to permanently " \ | |
1192 "revoke biases of all objects in the heap of that type") \ | |
1193 \ | |
1194 product(intx, BiasedLockingDecayTime, 25000, \ | |
1195 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
1196 "type after previous bulk rebias") \ | |
1197 \ | |
1198 /* tracing */ \ | |
1199 \ | |
1200 notproduct(bool, TraceRuntimeCalls, false, \ | |
1201 "Trace run-time calls") \ | |
1202 \ | |
1203 develop(bool, TraceJNICalls, false, \ | |
1204 "Trace JNI calls") \ | |
1205 \ | |
1206 notproduct(bool, TraceJVMCalls, false, \ | |
1207 "Trace JVM calls") \ | |
1208 \ | |
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1209 product(ccstr, TraceJVMTI, NULL, \ |
0 | 1210 "Trace flags for JVMTI functions and events") \ |
1211 \ | |
1212 /* This option can change an EMCP method into an obsolete method. */ \ | |
1213 /* This can affect tests that except specific methods to be EMCP. */ \ | |
1214 /* This option should be used with caution. */ \ | |
1215 product(bool, StressLdcRewrite, false, \ | |
1216 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
1217 \ | |
1218 product(intx, TraceRedefineClasses, 0, \ | |
1219 "Trace level for JVMTI RedefineClasses") \ | |
1220 \ | |
1574 | 1221 develop(bool, StressMethodComparator, false, \ |
1222 "run the MethodComparator on all loaded methods") \ | |
1223 \ | |
0 | 1224 /* change to false by default sometime after Mustang */ \ |
1225 product(bool, VerifyMergedCPBytecodes, true, \ | |
1226 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
1227 \ | |
1228 develop(bool, TraceJNIHandleAllocation, false, \ | |
1229 "Trace allocation/deallocation of JNI handle blocks") \ | |
1230 \ | |
1231 develop(bool, TraceThreadEvents, false, \ | |
1232 "Trace all thread events") \ | |
1233 \ | |
1234 develop(bool, TraceBytecodes, false, \ | |
1235 "Trace bytecode execution") \ | |
1236 \ | |
1237 develop(bool, TraceClassInitialization, false, \ | |
1238 "Trace class initialization") \ | |
1239 \ | |
1240 develop(bool, TraceExceptions, false, \ | |
1241 "Trace exceptions") \ | |
1242 \ | |
1243 develop(bool, TraceICs, false, \ | |
1244 "Trace inline cache changes") \ | |
1245 \ | |
1246 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
1247 "Trace method invocation counter overflow") \ | |
1248 \ | |
1249 develop(bool, TraceInlineCacheClearing, false, \ | |
1250 "Trace clearing of inline caches in nmethods") \ | |
1251 \ | |
1252 develop(bool, TraceDependencies, false, \ | |
1253 "Trace dependencies") \ | |
1254 \ | |
1255 develop(bool, VerifyDependencies, trueInDebug, \ | |
1256 "Exercise and verify the compilation dependency mechanism") \ | |
1257 \ | |
1258 develop(bool, TraceNewOopMapGeneration, false, \ | |
1259 "Trace OopMapGeneration") \ | |
1260 \ | |
1261 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
1262 "Trace OopMapGeneration: print detailed cell states") \ | |
1263 \ | |
1264 develop(bool, TimeOopMap, false, \ | |
1265 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
1266 \ | |
1267 develop(bool, TimeOopMap2, false, \ | |
1268 "Time calls to GenerateOopMap::compute_map() individually") \ | |
1269 \ | |
1270 develop(bool, TraceMonitorMismatch, false, \ | |
1271 "Trace monitor matching failures during OopMapGeneration") \ | |
1272 \ | |
1273 develop(bool, TraceOopMapRewrites, false, \ | |
1274 "Trace rewritting of method oops during oop map generation") \ | |
1275 \ | |
1276 develop(bool, TraceSafepoint, false, \ | |
1277 "Trace safepoint operations") \ | |
1278 \ | |
1279 develop(bool, TraceICBuffer, false, \ | |
1280 "Trace usage of IC buffer") \ | |
1281 \ | |
1282 develop(bool, TraceCompiledIC, false, \ | |
1283 "Trace changes of compiled IC") \ | |
1284 \ | |
1285 notproduct(bool, TraceZapDeadLocals, false, \ | |
1286 "Trace zapping dead locals") \ | |
1287 \ | |
1288 develop(bool, TraceStartupTime, false, \ | |
1289 "Trace setup time") \ | |
1290 \ | |
1291 develop(bool, TraceProtectionDomainVerification, false, \ | |
1292 "Trace protection domain verifcation") \ | |
1293 \ | |
1294 develop(bool, TraceClearedExceptions, false, \ | |
1295 "Prints when an exception is forcibly cleared") \ | |
1296 \ | |
1297 product(bool, TraceClassResolution, false, \ | |
1298 "Trace all constant pool resolutions (for debugging)") \ | |
1299 \ | |
1300 product(bool, TraceBiasedLocking, false, \ | |
1301 "Trace biased locking in JVM") \ | |
1302 \ | |
1303 product(bool, TraceMonitorInflation, false, \ | |
1304 "Trace monitor inflation in JVM") \ | |
1305 \ | |
1306 /* gc */ \ | |
1307 \ | |
1308 product(bool, UseSerialGC, false, \ | |
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1309 "Use the serial garbage collector") \ |
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1310 \ |
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1311 product(bool, UseG1GC, false, \ |
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1312 "Use the Garbage-First garbage collector") \ |
0 | 1313 \ |
1314 product(bool, UseParallelGC, false, \ | |
1315 "Use the Parallel Scavenge garbage collector") \ | |
1316 \ | |
1317 product(bool, UseParallelOldGC, false, \ | |
1318 "Use the Parallel Old garbage collector") \ | |
1319 \ | |
1320 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
1321 "How often should we maximally compact the heap (not allowing " \ | |
1322 "any dead space)") \ | |
1323 \ | |
1324 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
1325 "The collection count for the first maximum compaction") \ | |
1326 \ | |
1327 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
1328 "In the Parallel Old garbage collector maximum compaction for " \ | |
1329 "a system GC") \ | |
1330 \ | |
1331 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
1332 "The mean used by the par compact dead wood" \ | |
1333 "limiter (a number between 0-100).") \ | |
1334 \ | |
1335 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
1336 "The standard deviation used by the par compact dead wood" \ | |
1337 "limiter (a number between 0-100).") \ | |
1338 \ | |
1339 product(uintx, ParallelGCThreads, 0, \ | |
1340 "Number of parallel threads parallel gc will use") \ | |
1341 \ | |
4095
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1342 product(bool, UseDynamicNumberOfGCThreads, false, \ |
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1343 "Dynamically choose the number of parallel threads " \ |
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1344 "parallel gc will use") \ |
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1345 \ |
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1346 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
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1347 "Force dynamic selection of the number of" \ |
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1348 "parallel threads parallel gc will use to aid debugging") \ |
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1349 \ |
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1350 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
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1351 "Size of heap (bytes) per GC thread used in calculating the " \ |
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1352 "number of GC threads") \ |
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1353 \ |
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1354 product(bool, TraceDynamicGCThreads, false, \ |
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1355 "Trace the dynamic GC thread usage") \ |
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1356 \ |
483
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1357 develop(bool, ParallelOldGCSplitALot, false, \ |
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|
1358 "Provoke splitting (copying data from a young gen space to" \ |
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|
1359 "multiple destination spaces)") \ |
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1360 \ |
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1361 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
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|
1362 "How often to provoke splitting a young gen space") \ |
0 | 1363 \ |
1284 | 1364 product(uintx, ConcGCThreads, 0, \ |
1365 "Number of threads concurrent gc will use") \ | |
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1366 \ |
0 | 1367 product(uintx, YoungPLABSize, 4096, \ |
1368 "Size of young gen promotion labs (in HeapWords)") \ | |
1369 \ | |
1370 product(uintx, OldPLABSize, 1024, \ | |
1371 "Size of old gen promotion labs (in HeapWords)") \ | |
1372 \ | |
1373 product(uintx, GCTaskTimeStampEntries, 200, \ | |
1374 "Number of time stamp entries per gc worker thread") \ | |
1375 \ | |
1376 product(bool, AlwaysTenure, false, \ | |
1377 "Always tenure objects in eden. (ParallelGC only)") \ | |
1378 \ | |
1379 product(bool, NeverTenure, false, \ | |
1064 | 1380 "Never tenure objects in eden, May tenure on overflow " \ |
1381 "(ParallelGC only)") \ | |
0 | 1382 \ |
1383 product(bool, ScavengeBeforeFullGC, true, \ | |
1064 | 1384 "Scavenge youngest generation before each full GC, " \ |
1385 "used with UseParallelGC") \ | |
0 | 1386 \ |
1387 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
1388 "Allow scavenges to occur when to_space contains objects.") \ | |
1389 \ | |
1390 product(bool, UseConcMarkSweepGC, false, \ | |
1391 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
1392 \ | |
1393 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
1394 "A System.gc() request invokes a concurrent collection;" \ | |
1395 " (effective only when UseConcMarkSweepGC)") \ | |
1396 \ | |
1397 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
1064 | 1398 "A System.gc() request invokes a concurrent collection and " \ |
1399 "also unloads classes during such a concurrent gc cycle " \ | |
1400 "(effective only when UseConcMarkSweepGC)") \ | |
0 | 1401 \ |
1520
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|
1402 product(bool, GCLockerInvokesConcurrent, false, \ |
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diff
changeset
|
1403 "The exit of a JNI CS necessitating a scavenge also" \ |
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changeset
|
1404 " kicks off a bkgrd concurrent collection") \ |
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diff
changeset
|
1405 \ |
1991
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
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diff
changeset
|
1406 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
016a3628c885
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diff
changeset
|
1407 "How much the GC can expand the eden by while the GC locker " \ |
016a3628c885
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diff
changeset
|
1408 "is active (as a percentage)") \ |
016a3628c885
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diff
changeset
|
1409 \ |
8853
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diff
changeset
|
1410 diagnostic(intx, GCLockerRetryAllocationCount, 2, \ |
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diff
changeset
|
1411 "Number of times to retry allocations when" \ |
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diff
changeset
|
1412 " blocked by the GC locker") \ |
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|
1413 \ |
0 | 1414 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
1415 "Use Adaptive Free Lists in the CMS generation") \ | |
1416 \ | |
1417 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
1418 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
1419 \ | |
1420 develop(bool, RotateCMSCollectionTypes, false, \ | |
1421 "Rotate the CMS collections among concurrent and STW") \ | |
1422 \ | |
1423 product(bool, UseCMSBestFit, true, \ | |
1424 "Use CMS best fit allocation strategy") \ | |
1425 \ | |
1426 product(bool, UseCMSCollectionPassing, true, \ | |
1427 "Use passing of collection from background to foreground") \ | |
1428 \ | |
1429 product(bool, UseParNewGC, false, \ | |
1430 "Use parallel threads in the new generation.") \ | |
1431 \ | |
1432 product(bool, ParallelGCVerbose, false, \ | |
1433 "Verbose output for parallel GC.") \ | |
1434 \ | |
1435 product(intx, ParallelGCBufferWastePct, 10, \ | |
1436 "wasted fraction of parallel allocation buffer.") \ | |
1437 \ | |
3357
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1438 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
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|
1439 "Retain parallel allocation buffers across scavenges; " \ |
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|
1440 " -- disabled because this currently conflicts with " \ |
fc2b798ab316
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|
1441 " parallel card scanning under certain conditions ") \ |
0 | 1442 \ |
1443 product(intx, TargetPLABWastePct, 10, \ | |
1444 "target wasted space in last buffer as pct of overall allocation")\ | |
1445 \ | |
1446 product(uintx, PLABWeight, 75, \ | |
1447 "Percentage (0-100) used to weight the current sample when" \ | |
1448 "computing exponentially decaying average for ResizePLAB.") \ | |
1449 \ | |
1450 product(bool, ResizePLAB, true, \ | |
1451 "Dynamically resize (survivor space) promotion labs") \ | |
1452 \ | |
1453 product(bool, PrintPLAB, false, \ | |
1454 "Print (survivor space) promotion labs sizing decisions") \ | |
1455 \ | |
1456 product(intx, ParGCArrayScanChunk, 50, \ | |
1457 "Scan a subset and push remainder, if array is bigger than this") \ | |
1458 \ | |
695 | 1459 product(bool, ParGCUseLocalOverflow, false, \ |
1460 "Instead of a global overflow list, use local overflow stacks") \ | |
1461 \ | |
679
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|
1462 product(bool, ParGCTrimOverflow, true, \ |
695 | 1463 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
679
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|
1464 \ |
534 | 1465 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
1466 "Whether we should simulate work queue overflow in ParNew") \ | |
1467 \ | |
1468 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
1064 | 1469 "An `interval' counter that determines how frequently " \ |
1470 "we simulate overflow; a smaller number increases frequency") \ | |
534 | 1471 \ |
1472 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
0 | 1473 "The desired number of objects to claim from the overflow list") \ |
1474 \ | |
4728
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1475 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
3357
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changeset
|
1476 "The number of strides per worker thread that we divide up the " \ |
fc2b798ab316
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changeset
|
1477 "card table scanning work into") \ |
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|
1478 \ |
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|
1479 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
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changeset
|
1480 "The number of cards in each chunk of the parallel chunks used " \ |
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changeset
|
1481 "during card table scanning") \ |
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|
1482 \ |
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|
1483 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
0 | 1484 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
1485 "parallel GC.") \ | |
1486 \ | |
1145
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1487 product(uintx, OldPLABWeight, 50, \ |
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1488 "Percentage (0-100) used to weight the current sample when" \ |
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1489 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
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|
1490 \ |
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1491 product(bool, ResizeOldPLAB, true, \ |
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1492 "Dynamically resize (old gen) promotion labs") \ |
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|
1493 \ |
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1494 product(bool, PrintOldPLAB, false, \ |
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|
1495 "Print (old gen) promotion labs sizing decisions") \ |
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|
1496 \ |
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1497 product(uintx, CMSOldPLABMin, 16, \ |
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|
1498 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
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|
1499 \ |
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|
1500 product(uintx, CMSOldPLABMax, 1024, \ |
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|
1501 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
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|
1502 \ |
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|
1503 product(uintx, CMSOldPLABNumRefills, 4, \ |
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|
1504 "Nominal number of refills of CMS gen promotion lab cache" \ |
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changeset
|
1505 " per worker per block size") \ |
e018e6884bd8
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changeset
|
1506 \ |
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|
1507 product(bool, CMSOldPLABResizeQuicker, false, \ |
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changeset
|
1508 "Whether to react on-the-fly during a scavenge to a sudden" \ |
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changeset
|
1509 " change in block demand rate") \ |
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changeset
|
1510 \ |
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|
1511 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
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|
1512 "The tolerance of the phase-change detector for on-the-fly" \ |
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changeset
|
1513 " PLAB resizing during a scavenge") \ |
e018e6884bd8
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|
1514 \ |
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|
1515 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
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|
1516 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
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|
1517 " during a scavenge") \ |
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|
1518 \ |
0 | 1519 product(bool, AlwaysPreTouch, false, \ |
1520 "It forces all freshly committed pages to be pre-touched.") \ | |
1521 \ | |
2368
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6896099: Integrate CMS heap ergo with default heap sizing ergo
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diff
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1522 product_pd(intx, CMSYoungGenPerWorker, \ |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
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diff
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|
1523 "The maximum size of young gen chosen by default per GC worker " \ |
1064 | 1524 "thread available") \ |
0 | 1525 \ |
1526 product(bool, CMSIncrementalMode, false, \ | |
1527 "Whether CMS GC should operate in \"incremental\" mode") \ | |
1528 \ | |
1529 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
1530 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
1531 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
1532 "value") \ | |
1533 \ | |
1534 product(bool, CMSIncrementalPacing, true, \ | |
1535 "Whether the CMS incremental mode duty cycle should be " \ | |
1536 "automatically adjusted") \ | |
1537 \ | |
1538 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
1064 | 1539 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
1540 "enabled (a percentage, 0-100)") \ | |
0 | 1541 \ |
1542 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
1064 | 1543 "Percentage (0-100) used to add conservatism when computing the " \ |
1544 "duty cycle") \ | |
0 | 1545 \ |
1546 product(uintx, CMSIncrementalOffset, 0, \ | |
1547 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
1064 | 1548 " is shifted to the right within the period between young GCs") \ |
0 | 1549 \ |
1145
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1550 product(uintx, CMSExpAvgFactor, 50, \ |
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|
1551 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
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changeset
|
1552 "computing exponential averages for CMS statistics.") \ |
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|
1553 \ |
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|
1554 product(uintx, CMS_FLSWeight, 75, \ |
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|
1555 "Percentage (0-100) used to weight the current sample when" \ |
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|
1556 "computing exponentially decating averages for CMS FLS statistics.") \ |
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|
1557 \ |
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|
1558 product(uintx, CMS_FLSPadding, 1, \ |
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|
1559 "The multiple of deviation from mean to use for buffering" \ |
0 | 1560 "against volatility in free list demand.") \ |
1561 \ | |
1562 product(uintx, FLSCoalescePolicy, 2, \ | |
1563 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
1564 \ | |
1145
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|
1565 product(bool, FLSAlwaysCoalesceLarge, false, \ |
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|
1566 "CMS: Larger free blocks are always available for coalescing") \ |
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|
1567 \ |
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1568 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
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|
1569 "CMS: the smaller the percentage the greater the coalition force")\ |
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|
1570 \ |
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|
1571 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
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|
1572 "CMS: the factor by which to inflate estimated demand of small" \ |
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|
1573 " block sizes to prevent coalescing with an adjoining block") \ |
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|
1574 \ |
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1575 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
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changeset
|
1576 "CMS: the factor by which to inflate estimated demand of large" \ |
e018e6884bd8
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changeset
|
1577 " block sizes to prevent coalescing with an adjoining block") \ |
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|
1578 \ |
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|
1579 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
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changeset
|
1580 "CMS: the factor by which to inflate estimated demand of small" \ |
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changeset
|
1581 " block sizes to prevent splitting to supply demand for smaller" \ |
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changeset
|
1582 " blocks") \ |
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|
1583 \ |
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1584 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
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changeset
|
1585 "CMS: the factor by which to inflate estimated demand of large" \ |
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changeset
|
1586 " block sizes to prevent splitting to supply demand for smaller" \ |
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changeset
|
1587 " blocks") \ |
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|
1588 \ |
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1589 product(bool, CMSExtrapolateSweep, false, \ |
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changeset
|
1590 "CMS: cushion for block demand during sweep") \ |
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1591 \ |
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1592 product(uintx, CMS_SweepWeight, 75, \ |
1064 | 1593 "Percentage (0-100) used to weight the current sample when " \ |
1594 "computing exponentially decaying average for inter-sweep " \ | |
1595 "duration") \ | |
0 | 1596 \ |
1145
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1597 product(uintx, CMS_SweepPadding, 1, \ |
1064 | 1598 "The multiple of deviation from mean to use for buffering " \ |
0 | 1599 "against volatility in inter-sweep duration.") \ |
1600 \ | |
1601 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
1602 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
1064 | 1603 "duration exceeds this threhold in milliseconds") \ |
0 | 1604 \ |
1605 develop(bool, CMSTraceIncrementalMode, false, \ | |
1606 "Trace CMS incremental mode") \ | |
1607 \ | |
1608 develop(bool, CMSTraceIncrementalPacing, false, \ | |
1609 "Trace CMS incremental mode pacing computation") \ | |
1610 \ | |
1611 develop(bool, CMSTraceThreadState, false, \ | |
1612 "Trace the CMS thread state (enable the trace_state() method)") \ | |
1613 \ | |
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1614 product(bool, CMSClassUnloadingEnabled, true, \ |
0 | 1615 "Whether class unloading enabled when using CMS GC") \ |
1616 \ | |
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1617 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
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1618 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
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1619 " for which classes may not be unloaded") \ |
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1620 \ |
0 | 1621 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
1622 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
1623 \ | |
1624 product(bool, UseCMSCompactAtFullCollection, true, \ | |
1625 "Use mark sweep compact at full collections") \ | |
1626 \ | |
1627 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
1628 "Number of CMS full collection done before compaction if > 0") \ | |
1629 \ | |
1630 develop(intx, CMSDictionaryChoice, 0, \ | |
1631 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
1632 \ | |
1633 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
6818 | 1634 "Replenish an indexed free list with this number of chunks") \ |
0 | 1635 \ |
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1636 product(bool, CMSReplenishIntermediate, true, \ |
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1637 "Replenish all intermediate free-list caches") \ |
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1638 \ |
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1639 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
1777
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1640 "When satisfying batched demand, split blocks from the " \ |
1145
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1641 "IndexedFreeList whose size is a multiple of requested size") \ |
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1642 \ |
0 | 1643 product(bool, CMSLoopWarn, false, \ |
1644 "Warn in case of excessive CMS looping") \ | |
1645 \ | |
1646 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
1647 "Whether preserved marks should be restored early") \ | |
1648 \ | |
1284 | 1649 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
1650 "Size of marking stack") \ | |
1651 \ | |
1652 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
1653 "Max size of marking stack") \ | |
0 | 1654 \ |
1655 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
1656 "Whether we should simulate frequent marking stack / work queue" \ | |
1657 " overflow") \ | |
1658 \ | |
534 | 1659 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
1660 "An `interval' counter that determines how frequently" \ | |
0 | 1661 " we simulate overflow; a smaller number increases frequency") \ |
1662 \ | |
1663 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
1664 "(Temporary, subject to experimentation)" \ | |
1665 "Maximum number of abortable preclean iterations, if > 0") \ | |
1666 \ | |
1667 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
1668 "(Temporary, subject to experimentation)" \ | |
1669 "Maximum time in abortable preclean in ms") \ | |
1670 \ | |
1671 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
1672 "(Temporary, subject to experimentation)" \ | |
1673 "Nominal minimum work per abortable preclean iteration") \ | |
1674 \ | |
1887
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1675 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
0 | 1676 "(Temporary, subject to experimentation)" \ |
1677 " Time that we sleep between iterations when not given" \ | |
1678 " enough work per iteration") \ | |
1679 \ | |
1680 product(uintx, CMSRescanMultiple, 32, \ | |
1681 "Size (in cards) of CMS parallel rescan task") \ | |
1682 \ | |
1683 product(uintx, CMSConcMarkMultiple, 32, \ | |
1684 "Size (in cards) of CMS concurrent MT marking task") \ | |
1685 \ | |
1686 product(bool, CMSAbortSemantics, false, \ | |
1687 "Whether abort-on-overflow semantics is implemented") \ | |
1688 \ | |
1689 product(bool, CMSParallelRemarkEnabled, true, \ | |
1690 "Whether parallel remark enabled (only if ParNewGC)") \ | |
1691 \ | |
1692 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
1693 "Whether parallel remark of survivor space" \ | |
1694 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
1695 \ | |
1696 product(bool, CMSPLABRecordAlways, true, \ | |
1697 "Whether to always record survivor space PLAB bdries" \ | |
1698 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
1699 \ | |
1700 product(bool, CMSConcurrentMTEnabled, true, \ | |
1701 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
1702 \ | |
1703 product(bool, CMSPrecleaningEnabled, true, \ | |
1704 "Whether concurrent precleaning enabled") \ | |
1705 \ | |
1706 product(uintx, CMSPrecleanIter, 3, \ | |
1707 "Maximum number of precleaning iteration passes") \ | |
1708 \ | |
1709 product(uintx, CMSPrecleanNumerator, 2, \ | |
1710 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1711 " ratio") \ | |
1712 \ | |
1713 product(uintx, CMSPrecleanDenominator, 3, \ | |
1714 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1715 " ratio") \ | |
1716 \ | |
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1717 product(bool, CMSPrecleanRefLists1, true, \ |
0 | 1718 "Preclean ref lists during (initial) preclean phase") \ |
1719 \ | |
1720 product(bool, CMSPrecleanRefLists2, false, \ | |
1721 "Preclean ref lists during abortable preclean phase") \ | |
1722 \ | |
1723 product(bool, CMSPrecleanSurvivors1, false, \ | |
1724 "Preclean survivors during (initial) preclean phase") \ | |
1725 \ | |
1726 product(bool, CMSPrecleanSurvivors2, true, \ | |
1727 "Preclean survivors during abortable preclean phase") \ | |
1728 \ | |
1729 product(uintx, CMSPrecleanThreshold, 1000, \ | |
1730 "Don't re-iterate if #dirty cards less than this") \ | |
1731 \ | |
1732 product(bool, CMSCleanOnEnter, true, \ | |
1733 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
1734 \ | |
1735 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
1736 "Choose variant (1,2) of verification following remark") \ | |
1737 \ | |
1738 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
1739 "If Eden used is below this value, don't try to schedule remark") \ | |
1740 \ | |
1741 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
1742 "The Eden occupancy % at which to try and schedule remark pause") \ | |
1743 \ | |
1744 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
1745 "Start sampling Eden top at least before yg occupancy reaches" \ | |
1746 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
1747 \ | |
1748 product(uintx, CMSSamplingGrain, 16*K, \ | |
1749 "The minimum distance between eden samples for CMS (see above)") \ | |
1750 \ | |
1751 product(bool, CMSScavengeBeforeRemark, false, \ | |
1752 "Attempt scavenge before the CMS remark step") \ | |
1753 \ | |
1754 develop(bool, CMSTraceSweeper, false, \ | |
1755 "Trace some actions of the CMS sweeper") \ | |
1756 \ | |
1757 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
1758 "Don't drain below this size per parallel worker/thief") \ | |
1759 \ | |
1887
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1760 manageable(intx, CMSWaitDuration, 2000, \ |
0 | 1761 "Time in milliseconds that CMS thread waits for young GC") \ |
1762 \ | |
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1763 develop(uintx, CMSCheckInterval, 1000, \ |
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1764 "Interval in milliseconds that CMS thread checks if it " \ |
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1765 "should start a collection cycle") \ |
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1766 \ |
0 | 1767 product(bool, CMSYield, true, \ |
1768 "Yield between steps of concurrent mark & sweep") \ | |
1769 \ | |
1770 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
1771 "Bitmap operations should process at most this many bits" \ | |
1772 "between yields") \ | |
1773 \ | |
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1774 product(bool, CMSDumpAtPromotionFailure, false, \ |
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1775 "Dump useful information about the state of the CMS old " \ |
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1776 " generation upon a promotion failure.") \ |
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1777 \ |
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1778 product(bool, CMSPrintChunksInDump, false, \ |
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1779 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1780 " more detailed information about the free chunks.") \ |
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1781 \ |
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1782 product(bool, CMSPrintObjectsInDump, false, \ |
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1783 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1784 " more detailed information about the allocated objects.") \ |
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|
1785 \ |
0 | 1786 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
1787 "Verify that all refs across the FLS boundary " \ | |
1788 " are to valid objects") \ | |
1789 \ | |
1790 diagnostic(bool, FLSVerifyLists, false, \ | |
1791 "Do lots of (expensive) FreeListSpace verification") \ | |
1792 \ | |
1793 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
1794 "Do lots of (expensive) FLS index table verification") \ | |
1795 \ | |
1796 develop(bool, FLSVerifyDictionary, false, \ | |
1797 "Do lots of (expensive) FLS dictionary verification") \ | |
1798 \ | |
1799 develop(bool, VerifyBlockOffsetArray, false, \ | |
1800 "Do (expensive!) block offset array verification") \ | |
1801 \ | |
3321
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1802 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
0 | 1803 "Maintain _unallocated_block in BlockOffsetArray" \ |
1804 " (currently applicable only to CMS collector)") \ | |
1805 \ | |
1806 develop(bool, TraceCMSState, false, \ | |
1807 "Trace the state of the CMS collection") \ | |
1808 \ | |
1809 product(intx, RefDiscoveryPolicy, 0, \ | |
1810 "Whether reference-based(0) or referent-based(1)") \ | |
1811 \ | |
1812 product(bool, ParallelRefProcEnabled, false, \ | |
1813 "Enable parallel reference processing whenever possible") \ | |
1814 \ | |
1815 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
1816 "Enable balancing of reference processing queues") \ | |
1817 \ | |
8035 | 1818 product(uintx, CMSTriggerRatio, 80, \ |
0 | 1819 "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
1064 | 1820 "allocated before a CMS collection cycle commences") \ |
0 | 1821 \ |
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1822 product(uintx, CMSBootstrapOccupancy, 50, \ |
0 | 1823 "Percentage CMS generation occupancy at which to " \ |
1064 | 1824 "initiate CMS collection for bootstrapping collection stats") \ |
0 | 1825 \ |
1826 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
1827 "Percentage CMS generation occupancy to start a CMS collection " \ | |
1064 | 1828 "cycle. A negative value means that CMSTriggerRatio is used") \ |
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1829 \ |
1283
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1830 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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1831 "Percentage of the (entire) heap occupancy to start a " \ |
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1832 "concurrent GC cycle. It is used by GCs that trigger a " \ |
1283
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1833 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1834 "not just one of the generations (e.g., G1). A value of 0 " \ |
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1835 "denotes 'do constant GC cycles'.") \ |
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1836 \ |
0 | 1837 product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
1838 "Only use occupancy as a crierion for starting a CMS collection") \ | |
1839 \ | |
94
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1840 product(intx, CMSIsTooFullPercentage, 98, \ |
1064 | 1841 "An absolute ceiling above which CMS will always consider the " \ |
7461
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1842 "unloading of classes when class unloading is enabled") \ |
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1843 \ |
0 | 1844 develop(bool, CMSTestInFreeList, false, \ |
1845 "Check if the coalesced range is already in the " \ | |
1064 | 1846 "free lists as claimed") \ |
0 | 1847 \ |
1848 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
1849 "Check that all the garbage collected was returned to the " \ | |
1850 "free lists.") \ | |
1851 \ | |
1852 notproduct(bool, ScavengeALot, false, \ | |
1853 "Force scavenge at every Nth exit from the runtime system " \ | |
1854 "(N=ScavengeALotInterval)") \ | |
1855 \ | |
1856 develop(bool, FullGCALot, false, \ | |
1857 "Force full gc at every Nth exit from the runtime system " \ | |
1858 "(N=FullGCALotInterval)") \ | |
1859 \ | |
1860 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
1861 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
1862 \ | |
1145
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1863 product(bool, PrintPromotionFailure, false, \ |
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1864 "Print additional diagnostic information following " \ |
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1865 " promotion failure") \ |
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1866 \ |
0 | 1867 notproduct(bool, PromotionFailureALot, false, \ |
1868 "Use promotion failure handling on every youngest generation " \ | |
1869 "collection") \ | |
1870 \ | |
1871 develop(uintx, PromotionFailureALotCount, 1000, \ | |
1872 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
1873 "refill attempts (ParNew) or promotion attempts " \ | |
1874 "(other young collectors) ") \ | |
1875 \ | |
1876 develop(uintx, PromotionFailureALotInterval, 5, \ | |
1877 "Total collections between promotion failures alot") \ | |
1878 \ | |
1837
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1879 experimental(intx, WorkStealingSleepMillis, 1, \ |
0 | 1880 "Sleep time when sleep is used for yields") \ |
1881 \ | |
2430 | 1882 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
0 | 1883 "Number of yields before a sleep is done during workstealing") \ |
1884 \ | |
1837
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1885 experimental(uintx, WorkStealingHardSpins, 4096, \ |
546
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1886 "Number of iterations in a spin loop between checks on " \ |
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1887 "time out of hard spin") \ |
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1888 \ |
1837
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1889 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
546
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1890 "Ratio of hard spins to calls to yield") \ |
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1891 \ |
1311
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1892 develop(uintx, ObjArrayMarkingStride, 512, \ |
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1893 "Number of ObjArray elements to push onto the marking stack" \ |
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1894 "before pushing a continuation entry") \ |
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1895 \ |
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1896 develop(bool, MetadataAllocationFailALot, false, \ |
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1897 "Fail metadata allocations at intervals controlled by " \ |
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1898 "MetadataAllocationFailALotInterval") \ |
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1899 \ |
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1900 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ |
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1901 "metadata allocation failure alot interval") \ |
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1902 \ |
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1903 develop(bool, MetaDataDeallocateALot, false, \ |
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1904 "Deallocation bunches of metadata at intervals controlled by " \ |
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1905 "MetaDataAllocateALotInterval") \ |
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1906 \ |
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1907 develop(uintx, MetaDataDeallocateALotInterval, 100, \ |
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1908 "Metadata deallocation alot interval") \ |
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1909 \ |
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1910 develop(bool, TraceMetadataChunkAllocation, false, \ |
7461
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1911 "Trace chunk metadata allocations") \ |
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1912 \ |
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1913 product(bool, TraceMetadataHumongousAllocation, false, \ |
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1914 "Trace humongous metadata allocations") \ |
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1915 \ |
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1916 develop(bool, TraceMetavirtualspaceAllocation, false, \ |
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1917 "Trace virtual space metadata allocations") \ |
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1918 \ |
3779 | 1919 notproduct(bool, ExecuteInternalVMTests, false, \ |
1920 "Enable execution of internal VM tests.") \ | |
1921 \ | |
0 | 1922 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
1923 \ | |
1924 product_pd(bool, ResizeTLAB, \ | |
1925 "Dynamically resize tlab size for threads") \ | |
1926 \ | |
1927 product(bool, ZeroTLAB, false, \ | |
1928 "Zero out the newly created TLAB") \ | |
1929 \ | |
342
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1930 product(bool, FastTLABRefill, true, \ |
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|
1931 "Use fast TLAB refill code") \ |
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1932 \ |
0 | 1933 product(bool, PrintTLAB, false, \ |
1934 "Print various TLAB related information") \ | |
1935 \ | |
1936 product(bool, TLABStats, true, \ | |
1937 "Print various TLAB related information") \ | |
1938 \ | |
2192
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1939 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
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diff
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1940 "Enable LowMemoryProtection")) \ |
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|
1941 \ |
0 | 1942 product_pd(bool, NeverActAsServerClassMachine, \ |
1943 "Never act like a server-class machine") \ | |
1944 \ | |
1945 product(bool, AlwaysActAsServerClassMachine, false, \ | |
1946 "Always act like a server-class machine") \ | |
1947 \ | |
1064 | 1948 product_pd(uint64_t, MaxRAM, \ |
1949 "Real memory size (in bytes) used to set maximum heap size") \ | |
1950 \ | |
1951 product(uintx, ErgoHeapSizeLimit, 0, \ | |
1952 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
1953 "MaxRAM / MaxRAMFraction") \ | |
1954 \ | |
1955 product(uintx, MaxRAMFraction, 4, \ | |
1956 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
1957 "size") \ | |
0 | 1958 \ |
1959 product(uintx, DefaultMaxRAMFraction, 4, \ | |
1064 | 1960 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
1961 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
1962 \ | |
1963 product(uintx, MinRAMFraction, 2, \ | |
1964 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
1965 "size on systems with small physical memory size") \ | |
1966 \ | |
1967 product(uintx, InitialRAMFraction, 64, \ | |
1968 "Fraction (1/n) of real memory used for initial heap size") \ | |
0 | 1969 \ |
8854
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1970 develop(uintx, MaxVirtMemFraction, 2, \ |
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|
1971 "Maximum fraction (1/n) of virtual memory used for ergonomically" \ |
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1972 "determining maximum heap size") \ |
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|
1973 \ |
0 | 1974 product(bool, UseAutoGCSelectPolicy, false, \ |
1975 "Use automatic collection selection policy") \ | |
1976 \ | |
1977 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
1978 "Automatic GC selection pause threshhold in ms") \ | |
1979 \ | |
1980 product(bool, UseAdaptiveSizePolicy, true, \ | |
1981 "Use adaptive generation sizing policies") \ | |
1982 \ | |
1983 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
1984 "Use adaptive survivor sizing policies") \ | |
1985 \ | |
1986 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
1987 "Use adaptive young-old sizing policies at minor collections") \ | |
1988 \ | |
1989 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
1990 "Use adaptive young-old sizing policies at major collections") \ | |
1991 \ | |
1992 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
1993 "Use statistics from System.GC for adaptive size policy") \ | |
1994 \ | |
1995 product(bool, UseAdaptiveGCBoundary, false, \ | |
1996 "Allow young-old boundary to move") \ | |
1997 \ | |
1998 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
1999 "Trace young-old boundary moves") \ | |
2000 \ | |
2001 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
2002 "Resize the virtual spaces of the young or old generations") \ | |
2003 \ | |
2004 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
2005 "Policy for changeing generation size for throughput goals") \ | |
2006 \ | |
2007 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
2008 "Policy for changing generation size for pause goals") \ | |
2009 \ | |
2010 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
2011 "Adjust tenured generation to achive a minor pause goal") \ | |
2012 \ | |
2013 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
2014 "Adjust young generation to achive a major pause goal") \ | |
2015 \ | |
2016 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
2017 "Number of steps where heuristics is used before data is used") \ | |
2018 \ | |
2019 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
2020 "Number of collections before the adaptive sizing is started") \ | |
2021 \ | |
2022 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
1064 | 2023 "Collecton interval for printing information; zero => never") \ |
0 | 2024 \ |
2025 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
2026 "Use adaptive minimum footprint as a goal") \ | |
2027 \ | |
2028 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
2029 "Weight given to exponential resizing, between 0 and 100") \ | |
2030 \ | |
2031 product(uintx, AdaptiveTimeWeight, 25, \ | |
2032 "Weight given to time in adaptive policy, between 0 and 100") \ | |
2033 \ | |
2034 product(uintx, PausePadding, 1, \ | |
2035 "How much buffer to keep for pause time") \ | |
2036 \ | |
2037 product(uintx, PromotedPadding, 3, \ | |
2038 "How much buffer to keep for promotion failure") \ | |
2039 \ | |
2040 product(uintx, SurvivorPadding, 3, \ | |
2041 "How much buffer to keep for survivor overflow") \ | |
2042 \ | |
2043 product(uintx, ThresholdTolerance, 10, \ | |
2044 "Allowed collection cost difference between generations") \ | |
2045 \ | |
2046 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
1064 | 2047 "If collection costs are within margin, reduce both by full " \ |
2048 "delta") \ | |
0 | 2049 \ |
2050 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
2051 "Adaptive size percentage change in young generation") \ | |
2052 \ | |
2053 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
2054 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
2055 \ | |
2056 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
2057 "Decay factor to YoungedGenerationSizeSupplement") \ | |
2058 \ | |
2059 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
2060 "Adaptive size percentage change in tenured generation") \ | |
2061 \ | |
2062 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
2063 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
2064 \ | |
2065 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
2066 "Decay factor to TenuredGenerationSizeIncrement") \ | |
2067 \ | |
6818 | 2068 product(uintx, MaxGCPauseMillis, max_uintx, \ |
751 | 2069 "Adaptive size policy maximum GC pause time goal in msec, " \ |
2070 "or (G1 Only) the max. GC time per MMU time slice") \ | |
2071 \ | |
1610
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|
2072 product(uintx, GCPauseIntervalMillis, 0, \ |
751 | 2073 "Time slice for MMU specification") \ |
0 | 2074 \ |
2075 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
2076 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
2077 \ | |
2078 product(uintx, GCTimeRatio, 99, \ | |
2079 "Adaptive size policy application time to GC time ratio") \ | |
2080 \ | |
2081 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
2082 "Adaptive size scale down factor for shrinking") \ | |
2083 \ | |
2084 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
2085 "Adaptive size decays the major cost for long major intervals") \ | |
2086 \ | |
2087 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
2088 "Time scale over which major costs decay") \ | |
2089 \ | |
2090 product(uintx, MinSurvivorRatio, 3, \ | |
2091 "Minimum ratio of young generation/survivor space size") \ | |
2092 \ | |
2093 product(uintx, InitialSurvivorRatio, 8, \ | |
2094 "Initial ratio of eden/survivor space size") \ | |
2095 \ | |
2096 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
2097 "Estimate of footprint other than Java Heap") \ | |
2098 \ | |
2099 product(bool, UseGCOverheadLimit, true, \ | |
2100 "Use policy to limit of proportion of time spent in GC " \ | |
2101 "before an OutOfMemory error is thrown") \ | |
2102 \ | |
2103 product(uintx, GCTimeLimit, 98, \ | |
2104 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
2105 "error is thrown (used with GCHeapFreeLimit)") \ | |
2106 \ | |
2107 product(uintx, GCHeapFreeLimit, 2, \ | |
2108 "Minimum percentage of free space after a full GC before an " \ | |
2109 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
2110 \ | |
2111 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
2112 "Number of consecutive collections before gc time limit fires") \ | |
2113 \ | |
2114 product(bool, PrintAdaptiveSizePolicy, false, \ | |
2115 "Print information about AdaptiveSizePolicy") \ | |
2116 \ | |
2117 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
2118 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
2119 \ | |
2120 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
2121 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
2122 \ | |
2123 product(intx, PrefetchFieldsAhead, -1, \ | |
2124 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
2125 \ | |
9071
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|
2126 diagnostic(bool, VerifyDuringStartup, false, \ |
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|
2127 "Verify memory system before executing any Java code " \ |
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|
2128 "during VM initialization") \ |
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|
2129 \ |
0 | 2130 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
2131 "Verify system before exiting") \ | |
2132 \ | |
2133 diagnostic(bool, VerifyBeforeGC, false, \ | |
2134 "Verify memory system before GC") \ | |
2135 \ | |
2136 diagnostic(bool, VerifyAfterGC, false, \ | |
2137 "Verify memory system after GC") \ | |
2138 \ | |
2139 diagnostic(bool, VerifyDuringGC, false, \ | |
2140 "Verify memory system during GC (between phases)") \ | |
2141 \ | |
390 | 2142 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
2143 "Enable parallel memory system verification") \ | |
2144 \ | |
1166 | 2145 diagnostic(bool, DeferInitialCardMark, false, \ |
2146 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
2147 "may arise from new_pre_store_barrier") \ | |
2148 \ | |
0 | 2149 diagnostic(bool, VerifyRememberedSets, false, \ |
2150 "Verify GC remembered sets") \ | |
2151 \ | |
2152 diagnostic(bool, VerifyObjectStartArray, true, \ | |
2153 "Verify GC object start array if verify before/after") \ | |
2154 \ | |
2155 product(bool, DisableExplicitGC, false, \ | |
2156 "Tells whether calling System.gc() does a full GC") \ | |
2157 \ | |
2158 notproduct(bool, CheckMemoryInitialization, false, \ | |
2159 "Checks memory initialization") \ | |
2160 \ | |
2161 product(bool, CollectGen0First, false, \ | |
2162 "Collect youngest generation before each full GC") \ | |
2163 \ | |
2164 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
2165 "Bind CMS Thread to CPU if possible") \ | |
2166 \ | |
2167 diagnostic(uintx, CPUForCMSThread, 0, \ | |
2168 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
2169 \ | |
2170 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
2171 "Bind GCTaskThreads to CPUs if possible") \ | |
2172 \ | |
2173 product(bool, UseGCTaskAffinity, false, \ | |
2174 "Use worker affinity when asking for GCTasks") \ | |
2175 \ | |
2176 product(uintx, ProcessDistributionStride, 4, \ | |
2177 "Stride through processors when distributing processes") \ | |
2178 \ | |
2179 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
2180 "number of times the coordinator GC thread will sleep while " \ | |
2181 "yielding before giving up and resuming GC") \ | |
2182 \ | |
2183 product(uintx, CMSYieldSleepCount, 0, \ | |
2184 "number of times a GC thread (minus the coordinator) " \ | |
2185 "will sleep while yielding before giving up and resuming GC") \ | |
2186 \ | |
2187 /* gc tracing */ \ | |
2188 manageable(bool, PrintGC, false, \ | |
2189 "Print message at garbage collect") \ | |
2190 \ | |
2191 manageable(bool, PrintGCDetails, false, \ | |
2192 "Print more details at garbage collect") \ | |
2193 \ | |
2194 manageable(bool, PrintGCDateStamps, false, \ | |
2195 "Print date stamps at garbage collect") \ | |
2196 \ | |
2197 manageable(bool, PrintGCTimeStamps, false, \ | |
2198 "Print timestamps at garbage collect") \ | |
2199 \ | |
2200 product(bool, PrintGCTaskTimeStamps, false, \ | |
2201 "Print timestamps for individual gc worker thread tasks") \ | |
2202 \ | |
2203 develop(intx, ConcGCYieldTimeout, 0, \ | |
2204 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
2205 \ | |
2206 notproduct(bool, TraceMarkSweep, false, \ | |
2207 "Trace mark sweep") \ | |
2208 \ | |
2209 product(bool, PrintReferenceGC, false, \ | |
2210 "Print times spent handling reference objects during GC " \ | |
2211 " (enabled only when PrintGCDetails)") \ | |
2212 \ | |
2213 develop(bool, TraceReferenceGC, false, \ | |
2214 "Trace handling of soft/weak/final/phantom references") \ | |
2215 \ | |
2216 develop(bool, TraceFinalizerRegistration, false, \ | |
2217 "Trace registration of final references") \ | |
2218 \ | |
2219 notproduct(bool, TraceScavenge, false, \ | |
2220 "Trace scavenge") \ | |
2221 \ | |
2222 product_rw(bool, TraceClassLoading, false, \ | |
2223 "Trace all classes loaded") \ | |
2224 \ | |
2225 product(bool, TraceClassLoadingPreorder, false, \ | |
2226 "Trace all classes loaded in order referenced (not loaded)") \ | |
2227 \ | |
2228 product_rw(bool, TraceClassUnloading, false, \ | |
2229 "Trace unloading of classes") \ | |
2230 \ | |
2231 product_rw(bool, TraceLoaderConstraints, false, \ | |
2232 "Trace loader constraints") \ | |
2233 \ | |
6725
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2234 develop(bool, TraceClassLoaderData, false, \ |
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2235 "Trace class loader loader_data lifetime") \ |
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2236 \ |
7446
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|
2237 product(uintx, InitialBootClassLoaderMetaspaceSize, \ |
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|
2238 NOT_LP64(2200*K) LP64_ONLY(4*M), \ |
6725
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2239 "Initial size of the boot class loader data metaspace") \ |
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|
2240 \ |
0 | 2241 product(bool, TraceGen0Time, false, \ |
2242 "Trace accumulated time for Gen 0 collection") \ | |
2243 \ | |
2244 product(bool, TraceGen1Time, false, \ | |
2245 "Trace accumulated time for Gen 1 collection") \ | |
2246 \ | |
2247 product(bool, PrintTenuringDistribution, false, \ | |
2248 "Print tenuring age information") \ | |
2249 \ | |
2250 product_rw(bool, PrintHeapAtGC, false, \ | |
2251 "Print heap layout before and after each GC") \ | |
2252 \ | |
838
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|
2253 product_rw(bool, PrintHeapAtGCExtended, false, \ |
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|
2254 "Prints extended information about the layout of the heap " \ |
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|
2255 "when -XX:+PrintHeapAtGC is set") \ |
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|
2256 \ |
0 | 2257 product(bool, PrintHeapAtSIGBREAK, true, \ |
2258 "Print heap layout in response to SIGBREAK") \ | |
2259 \ | |
615
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|
2260 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
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|
2261 "Print a class histogram before any major stop-world GC") \ |
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|
2262 \ |
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changeset
|
2263 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
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570
diff
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|
2264 "Print a class histogram after any major stop-world GC") \ |
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|
2265 \ |
0 | 2266 manageable(bool, PrintClassHistogram, false, \ |
2267 "Print a histogram of class instances") \ | |
2268 \ | |
2269 develop(bool, TraceWorkGang, false, \ | |
2270 "Trace activities of work gangs") \ | |
2271 \ | |
2272 product(bool, TraceParallelOldGCTasks, false, \ | |
2273 "Trace multithreaded GC activity") \ | |
2274 \ | |
2275 develop(bool, TraceBlockOffsetTable, false, \ | |
2276 "Print BlockOffsetTable maps") \ | |
2277 \ | |
2278 develop(bool, TraceCardTableModRefBS, false, \ | |
2279 "Print CardTableModRefBS maps") \ | |
2280 \ | |
2281 develop(bool, TraceGCTaskManager, false, \ | |
2282 "Trace actions of the GC task manager") \ | |
2283 \ | |
2284 develop(bool, TraceGCTaskQueue, false, \ | |
2285 "Trace actions of the GC task queues") \ | |
2286 \ | |
6818 | 2287 diagnostic(bool, TraceGCTaskThread, false, \ |
0 | 2288 "Trace actions of the GC task threads") \ |
2289 \ | |
2290 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
2291 "Print the time taken by each parallel old gc phase." \ | |
2292 "PrintGCDetails must also be enabled.") \ | |
2293 \ | |
2294 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
2295 "Trace parallel old gc marking phase") \ | |
2296 \ | |
2297 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
2298 "Trace parallel old gc summary phase") \ | |
2299 \ | |
2300 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
2301 "Trace parallel old gc compaction phase") \ | |
2302 \ | |
2303 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
2304 "Trace parallel old gc dense prefix computation") \ | |
2305 \ | |
2306 develop(bool, IgnoreLibthreadGPFault, false, \ | |
2307 "Suppress workaround for libthread GP fault") \ | |
2308 \ | |
139
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|
2309 product(bool, PrintJNIGCStalls, false, \ |
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parents:
95
diff
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|
2310 "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
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95
diff
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|
2311 "by JNI critical section") \ |
c0492d52d55b
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95
diff
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|
2312 \ |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3745
diff
changeset
|
2313 /* GC log rotation setting */ \ |
2a241e764894
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3745
diff
changeset
|
2314 \ |
2a241e764894
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3745
diff
changeset
|
2315 product(bool, UseGCLogFileRotation, false, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3745
diff
changeset
|
2316 "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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3745
diff
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|
2317 "Requires -Xloggc:<filename>") \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3745
diff
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|
2318 \ |
2a241e764894
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3745
diff
changeset
|
2319 product(uintx, NumberOfGCLogFiles, 0, \ |
2a241e764894
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parents:
3745
diff
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|
2320 "Number of gclog files in rotation, " \ |
2a241e764894
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diff
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|
2321 "Default: 0, no rotation") \ |
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3745
diff
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|
2322 \ |
2a241e764894
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3745
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|
2323 product(uintx, GCLogFileSize, 0, \ |
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diff
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|
2324 "GC log file size, Default: 0 bytes, no rotation " \ |
2a241e764894
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3745
diff
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|
2325 "Only valid with UseGCLogFileRotation") \ |
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|
2326 \ |
0 | 2327 /* JVMTI heap profiling */ \ |
2328 \ | |
2329 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
2330 "Trace JVMTI object tagging calls") \ | |
2331 \ | |
2332 diagnostic(bool, VerifyBeforeIteration, false, \ | |
2333 "Verify memory system before JVMTI iteration") \ | |
2334 \ | |
2335 /* compiler interface */ \ | |
2336 \ | |
2337 develop(bool, CIPrintCompilerName, false, \ | |
2338 "when CIPrint is active, print the name of the active compiler") \ | |
2339 \ | |
2340 develop(bool, CIPrintCompileQueue, false, \ | |
2341 "display the contents of the compile queue whenever a " \ | |
2342 "compilation is enqueued") \ | |
2343 \ | |
2344 develop(bool, CIPrintRequests, false, \ | |
2345 "display every request for compilation") \ | |
2346 \ | |
2347 product(bool, CITime, false, \ | |
2348 "collect timing information for compilation") \ | |
2349 \ | |
2350 develop(bool, CITimeEach, false, \ | |
2351 "display timing information after each successful compilation") \ | |
2352 \ | |
6843 | 2353 develop(bool, CICountOSR, false, \ |
0 | 2354 "use a separate counter when assigning ids to osr compilations") \ |
2355 \ | |
2356 develop(bool, CICompileNatives, true, \ | |
2357 "compile native methods if supported by the compiler") \ | |
2358 \ | |
2359 develop_pd(bool, CICompileOSR, \ | |
2360 "compile on stack replacement methods if supported by the " \ | |
2361 "compiler") \ | |
2362 \ | |
2363 develop(bool, CIPrintMethodCodes, false, \ | |
2364 "print method bytecodes of the compiled code") \ | |
2365 \ | |
2366 develop(bool, CIPrintTypeFlow, false, \ | |
2367 "print the results of ciTypeFlow analysis") \ | |
2368 \ | |
2369 develop(bool, CITraceTypeFlow, false, \ | |
2370 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
2371 \ | |
2403 | 2372 develop(intx, OSROnlyBCI, -1, \ |
2373 "OSR only at this bci. Negative values mean exclude that bci") \ | |
2374 \ | |
0 | 2375 /* compiler */ \ |
2376 \ | |
2377 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
2378 "Number of compiler threads to run") \ | |
2379 \ | |
2380 product(intx, CompilationPolicyChoice, 0, \ | |
2381 "which compilation policy (0/1)") \ | |
2382 \ | |
2383 develop(bool, UseStackBanging, true, \ | |
2384 "use stack banging for stack overflow checks (required for " \ | |
2385 "proper StackOverflow handling; disable only to measure cost " \ | |
2386 "of stackbanging)") \ | |
2387 \ | |
2388 develop(bool, UseStrictFP, true, \ | |
2389 "use strict fp if modifier strictfp is set") \ | |
2390 \ | |
2391 develop(bool, GenerateSynchronizationCode, true, \ | |
2392 "generate locking/unlocking code for synchronized methods and " \ | |
2393 "monitors") \ | |
2394 \ | |
2395 develop(bool, GenerateCompilerNullChecks, true, \ | |
2396 "Generate explicit null checks for loads/stores/calls") \ | |
2397 \ | |
2398 develop(bool, GenerateRangeChecks, true, \ | |
2399 "Generate range checks for array accesses") \ | |
2400 \ | |
2401 develop_pd(bool, ImplicitNullChecks, \ | |
2402 "generate code for implicit null checks") \ | |
2403 \ | |
2404 product(bool, PrintSafepointStatistics, false, \ | |
2405 "print statistics about safepoint synchronization") \ | |
2406 \ | |
2407 product(intx, PrintSafepointStatisticsCount, 300, \ | |
2408 "total number of safepoint statistics collected " \ | |
2409 "before printing them out") \ | |
2410 \ | |
2411 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
2412 "print safepoint statistics only when safepoint takes" \ | |
2413 " more than PrintSafepointSatisticsTimeout in millis") \ | |
2414 \ | |
1321
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|
2415 product(bool, TraceSafepointCleanupTime, false, \ |
0f6600cee529
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1288
diff
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|
2416 "print the break down of clean up tasks performed during" \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
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1288
diff
changeset
|
2417 " safepoint") \ |
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1288
diff
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|
2418 \ |
0 | 2419 product(bool, Inline, true, \ |
2420 "enable inlining") \ | |
2421 \ | |
2422 product(bool, ClipInlining, true, \ | |
2423 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
2424 \ | |
2425 develop(bool, UseCHA, true, \ | |
2426 "enable CHA") \ | |
2427 \ | |
2428 product(bool, UseTypeProfile, true, \ | |
2429 "Check interpreter profile for historically monomorphic calls") \ | |
2430 \ | |
2431 notproduct(bool, TimeCompiler, false, \ | |
2432 "time the compiler") \ | |
2433 \ | |
2434 diagnostic(bool, PrintInlining, false, \ | |
2435 "prints inlining optimizations") \ | |
2436 \ | |
643
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6378821: bitCount() should use POPC on SPARC processors and AMD+10h
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parents:
642
diff
changeset
|
2437 product(bool, UsePopCountInstruction, false, \ |
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
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parents:
642
diff
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|
2438 "Use population count instruction") \ |
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
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parents:
642
diff
changeset
|
2439 \ |
0 | 2440 develop(bool, EagerInitialization, false, \ |
2441 "Eagerly initialize classes if possible") \ | |
2442 \ | |
2443 develop(bool, TraceMethodReplacement, false, \ | |
2444 "Print when methods are replaced do to recompilation") \ | |
2445 \ | |
2446 develop(bool, PrintMethodFlushing, false, \ | |
2447 "print the nmethods being flushed") \ | |
2448 \ | |
2449 develop(bool, UseRelocIndex, false, \ | |
2450 "use an index to speed random access to relocations") \ | |
2451 \ | |
2452 develop(bool, StressCodeBuffers, false, \ | |
2453 "Exercise code buffer expansion and other rare state changes") \ | |
2454 \ | |
2455 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
2456 "Generate extra debugging info for non-safepoints in nmethods") \ | |
2457 \ | |
4066 | 2458 product(bool, PrintVMOptions, false, \ |
1150 | 2459 "Print flags that appeared on the command line") \ |
0 | 2460 \ |
564 | 2461 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
2462 "Ignore unrecognized VM options") \ | |
2463 \ | |
1150 | 2464 product(bool, PrintCommandLineFlags, false, \ |
2465 "Print flags specified on command line or set by ergonomics") \ | |
2466 \ | |
2467 product(bool, PrintFlagsInitial, false, \ | |
2468 "Print all VM flags before argument processing and exit VM") \ | |
2469 \ | |
2470 product(bool, PrintFlagsFinal, false, \ | |
2471 "Print all VM flags after argument and ergonomic processing") \ | |
2472 \ | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2473 notproduct(bool, PrintFlagsWithComments, false, \ |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2474 "Print all VM flags with default values and descriptions and exit")\ |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2475 \ |
0 | 2476 diagnostic(bool, SerializeVMOutput, true, \ |
2477 "Use a mutex to serialize output to tty and hotspot.log") \ | |
2478 \ | |
2479 diagnostic(bool, DisplayVMOutput, true, \ | |
2480 "Display all VM output on the tty, independently of LogVMOutput") \ | |
2481 \ | |
2482 diagnostic(bool, LogVMOutput, trueInDebug, \ | |
2483 "Save VM output to hotspot.log, or to LogFile") \ | |
2484 \ | |
2485 diagnostic(ccstr, LogFile, NULL, \ | |
2486 "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ | |
2487 \ | |
2488 product(ccstr, ErrorFile, NULL, \ | |
2489 "If an error occurs, save the error data to this file " \ | |
2490 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
2491 \ | |
2492 product(bool, DisplayVMOutputToStderr, false, \ | |
2493 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
2494 \ | |
2495 product(bool, DisplayVMOutputToStdout, false, \ | |
2496 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
2497 \ | |
2498 product(bool, UseHeavyMonitors, false, \ | |
2499 "use heavyweight instead of lightweight Java monitors") \ | |
2500 \ | |
6162 | 2501 product(bool, PrintStringTableStatistics, false, \ |
2502 "print statistics about the StringTable and SymbolTable") \ | |
2503 \ | |
0 | 2504 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
2505 "print histogram of the symbol table") \ | |
2506 \ | |
2507 notproduct(bool, ExitVMOnVerifyError, false, \ | |
2508 "standard exit from VM if bytecode verify error " \ | |
2509 "(only in debug mode)") \ | |
2510 \ | |
2511 notproduct(ccstr, AbortVMOnException, NULL, \ | |
2512 "Call fatal if this exception is thrown. Example: " \ | |
2513 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
2514 \ | |
1684
66c5dadb4d61
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parents:
1660
diff
changeset
|
2515 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
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1660
diff
changeset
|
2516 "Call fatal if the exception pointed by AbortVMOnException " \ |
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
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1660
diff
changeset
|
2517 "has this message.") \ |
66c5dadb4d61
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1660
diff
changeset
|
2518 \ |
0 | 2519 develop(bool, DebugVtables, false, \ |
2520 "add debugging code to vtable dispatch") \ | |
2521 \ | |
2522 develop(bool, PrintVtables, false, \ | |
2523 "print vtables when printing klass") \ | |
2524 \ | |
2525 notproduct(bool, PrintVtableStats, false, \ | |
2526 "print vtables stats at end of run") \ | |
2527 \ | |
2528 develop(bool, TraceCreateZombies, false, \ | |
2529 "trace creation of zombie nmethods") \ | |
2530 \ | |
2531 notproduct(bool, IgnoreLockingAssertions, false, \ | |
2532 "disable locking assertions (for speed)") \ | |
2533 \ | |
2534 product(bool, RangeCheckElimination, true, \ | |
8860 | 2535 "Eliminate range checks") \ |
0 | 2536 \ |
2537 develop_pd(bool, UncommonNullCast, \ | |
2538 "track occurrences of null in casts; adjust compiler tactics") \ | |
2539 \ | |
2540 develop(bool, TypeProfileCasts, true, \ | |
2541 "treat casts like calls for purposes of type profiling") \ | |
2542 \ | |
2543 develop(bool, DelayCompilationDuringStartup, true, \ | |
2544 "Delay invoking the compiler until main application class is " \ | |
2545 "loaded") \ | |
2546 \ | |
2547 develop(bool, CompileTheWorld, false, \ | |
2548 "Compile all methods in all classes in bootstrap class path " \ | |
2549 "(stress test)") \ | |
2550 \ | |
2551 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
2552 "Preload all classes used by a class before start loading") \ | |
2553 \ | |
1188
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1179
diff
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|
2554 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
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1179
diff
changeset
|
2555 "Force a safepoint every n compiles so sweeper can keep up") \ |
99af867dfa05
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1179
diff
changeset
|
2556 \ |
0 | 2557 develop(bool, FillDelaySlots, true, \ |
2558 "Fill delay slots (on SPARC only)") \ | |
2559 \ | |
2560 develop(bool, TimeLivenessAnalysis, false, \ | |
2561 "Time computation of bytecode liveness analysis") \ | |
2562 \ | |
2563 develop(bool, TraceLivenessGen, false, \ | |
2564 "Trace the generation of liveness analysis information") \ | |
2565 \ | |
2566 notproduct(bool, TraceLivenessQuery, false, \ | |
2567 "Trace queries of liveness analysis information") \ | |
2568 \ | |
2569 notproduct(bool, CollectIndexSetStatistics, false, \ | |
2570 "Collect information about IndexSets") \ | |
2571 \ | |
2572 develop(bool, UseLoopSafepoints, true, \ | |
2573 "Generate Safepoint nodes in every loop") \ | |
2574 \ | |
2575 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
2576 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
2577 "Inline allocations larger than this in doublewords must go slow")\ | |
2578 \ | |
2579 product(bool, AggressiveOpts, false, \ | |
2580 "Enable aggressive optimizations - see arguments.cpp") \ | |
2581 \ | |
192
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diff
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|
2582 product(bool, UseStringCache, false, \ |
6d13fcb3663f
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174
diff
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|
2583 "Enable String cache capabilities on String.java") \ |
6d13fcb3663f
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|
2584 \ |
0 | 2585 /* statistics */ \ |
2586 develop(bool, CountCompiledCalls, false, \ | |
2587 "counts method invocations") \ | |
2588 \ | |
2589 notproduct(bool, CountRuntimeCalls, false, \ | |
2590 "counts VM runtime calls") \ | |
2591 \ | |
2592 develop(bool, CountJNICalls, false, \ | |
2593 "counts jni method invocations") \ | |
2594 \ | |
2595 notproduct(bool, CountJVMCalls, false, \ | |
2596 "counts jvm method invocations") \ | |
2597 \ | |
2598 notproduct(bool, CountRemovableExceptions, false, \ | |
2599 "count exceptions that could be replaced by branches due to " \ | |
2600 "inlining") \ | |
2601 \ | |
2602 notproduct(bool, ICMissHistogram, false, \ | |
2603 "produce histogram of IC misses") \ | |
2604 \ | |
2605 notproduct(bool, PrintClassStatistics, false, \ | |
2606 "prints class statistics at end of run") \ | |
2607 \ | |
2608 notproduct(bool, PrintMethodStatistics, false, \ | |
2609 "prints method statistics at end of run") \ | |
2610 \ | |
2611 /* interpreter */ \ | |
2612 develop(bool, ClearInterpreterLocals, false, \ | |
2613 "Always clear local variables of interpreter activations upon " \ | |
2614 "entry") \ | |
2615 \ | |
2616 product_pd(bool, RewriteBytecodes, \ | |
2617 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
2618 \ | |
2619 product_pd(bool, RewriteFrequentPairs, \ | |
2620 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
2621 \ | |
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|
2622 diagnostic(bool, PrintInterpreter, false, \ |
0 | 2623 "Prints the generated interpreter code") \ |
2624 \ | |
2625 product(bool, UseInterpreter, true, \ | |
2626 "Use interpreter for non-compiled methods") \ | |
2627 \ | |
2628 develop(bool, UseFastSignatureHandlers, true, \ | |
2629 "Use fast signature handlers for native calls") \ | |
2630 \ | |
2631 product(bool, UseLoopCounter, true, \ | |
2632 "Increment invocation counter on backward branch") \ | |
2633 \ | |
2634 product(bool, UseFastEmptyMethods, true, \ | |
2635 "Use fast method entry code for empty methods") \ | |
2636 \ | |
2637 product(bool, UseFastAccessorMethods, true, \ | |
2638 "Use fast method entry code for accessor methods") \ | |
2639 \ | |
2640 product_pd(bool, UseOnStackReplacement, \ | |
2641 "Use on stack replacement, calls runtime if invoc. counter " \ | |
2642 "overflows in loop") \ | |
2643 \ | |
2644 notproduct(bool, TraceOnStackReplacement, false, \ | |
2645 "Trace on stack replacement") \ | |
2646 \ | |
2647 product_pd(bool, PreferInterpreterNativeStubs, \ | |
2648 "Use always interpreter stubs for native methods invoked via " \ | |
2649 "interpreter") \ | |
2650 \ | |
2651 develop(bool, CountBytecodes, false, \ | |
2652 "Count number of bytecodes executed") \ | |
2653 \ | |
2654 develop(bool, PrintBytecodeHistogram, false, \ | |
2655 "Print histogram of the executed bytecodes") \ | |
2656 \ | |
2657 develop(bool, PrintBytecodePairHistogram, false, \ | |
2658 "Print histogram of the executed bytecode pairs") \ | |
2659 \ | |
100
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76
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changeset
|
2660 diagnostic(bool, PrintSignatureHandlers, false, \ |
0 | 2661 "Print code generated for native method signature handlers") \ |
2662 \ | |
2663 develop(bool, VerifyOops, false, \ | |
2664 "Do plausibility checks for oops") \ | |
2665 \ | |
2666 develop(bool, CheckUnhandledOops, false, \ | |
2667 "Check for unhandled oops in VM code") \ | |
2668 \ | |
2669 develop(bool, VerifyJNIFields, trueInDebug, \ | |
2670 "Verify jfieldIDs for instance fields") \ | |
2671 \ | |
2672 notproduct(bool, VerifyJNIEnvThread, false, \ | |
2673 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
2674 "from JNI") \ | |
2675 \ | |
2676 develop(bool, VerifyFPU, false, \ | |
2677 "Verify FPU state (check for NaN's, etc.)") \ | |
2678 \ | |
2679 develop(bool, VerifyThread, false, \ | |
2680 "Watch the thread register for corruption (SPARC only)") \ | |
2681 \ | |
2682 develop(bool, VerifyActivationFrameSize, false, \ | |
2683 "Verify that activation frame didn't become smaller than its " \ | |
2684 "minimal size") \ | |
2685 \ | |
2686 develop(bool, TraceFrequencyInlining, false, \ | |
2687 "Trace frequency based inlining") \ | |
2688 \ | |
2689 develop_pd(bool, InlineIntrinsics, \ | |
2690 "Inline intrinsics that can be statically resolved") \ | |
2691 \ | |
2692 product_pd(bool, ProfileInterpreter, \ | |
2693 "Profile at the bytecode level during interpretation") \ | |
2694 \ | |
2695 develop_pd(bool, ProfileTraps, \ | |
2696 "Profile deoptimization traps at the bytecode level") \ | |
2697 \ | |
2698 product(intx, ProfileMaturityPercentage, 20, \ | |
2699 "number of method invocations/branches (expressed as % of " \ | |
2700 "CompileThreshold) before using the method's profile") \ | |
2701 \ | |
2702 develop(bool, PrintMethodData, false, \ | |
2703 "Print the results of +ProfileInterpreter at end of run") \ | |
2704 \ | |
2705 develop(bool, VerifyDataPointer, trueInDebug, \ | |
2706 "Verify the method data pointer during interpreter profiling") \ | |
2707 \ | |
2708 develop(bool, VerifyCompiledCode, false, \ | |
2709 "Include miscellaneous runtime verifications in nmethod code; " \ | |
1064 | 2710 "default off because it disturbs nmethod size heuristics") \ |
0 | 2711 \ |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2712 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2713 "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
|
2714 "Test only") \ |
0 | 2715 \ |
2716 /* compilation */ \ | |
2717 product(bool, UseCompiler, true, \ | |
2718 "use compilation") \ | |
2719 \ | |
2720 develop(bool, TraceCompilationPolicy, false, \ | |
2721 "Trace compilation policy") \ | |
2722 \ | |
2723 develop(bool, TimeCompilationPolicy, false, \ | |
2724 "Time the compilation policy") \ | |
2725 \ | |
2726 product(bool, UseCounterDecay, true, \ | |
2727 "adjust recompilation counters") \ | |
2728 \ | |
2729 develop(intx, CounterHalfLifeTime, 30, \ | |
2730 "half-life time of invocation counters (in secs)") \ | |
2731 \ | |
2732 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
2733 "Min. ms. between invocation of CounterDecay") \ | |
2734 \ | |
2735 product(bool, AlwaysCompileLoopMethods, false, \ | |
2736 "when using recompilation, never interpret methods " \ | |
2737 "containing loops") \ | |
2738 \ | |
2739 product(bool, DontCompileHugeMethods, true, \ | |
2740 "don't compile methods > HugeMethodLimit") \ | |
2741 \ | |
2742 /* Bytecode escape analysis estimation. */ \ | |
2743 product(bool, EstimateArgEscape, true, \ | |
2744 "Analyze bytecodes to estimate escape state of arguments") \ | |
2745 \ | |
2746 product(intx, BCEATraceLevel, 0, \ | |
2747 "How much tracing to do of bytecode escape analysis estimates") \ | |
2748 \ | |
2749 product(intx, MaxBCEAEstimateLevel, 5, \ | |
2750 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
2751 \ | |
2752 product(intx, MaxBCEAEstimateSize, 150, \ | |
2753 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
2754 \ | |
2755 product(intx, AllocatePrefetchStyle, 1, \ | |
2756 "0 = no prefetch, " \ | |
2757 "1 = prefetch instructions for each allocation, " \ | |
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2758 "2 = use TLAB watermark to gate allocation prefetch, " \ |
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2759 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
0 | 2760 \ |
2761 product(intx, AllocatePrefetchDistance, -1, \ | |
2762 "Distance to prefetch ahead of allocation pointer") \ | |
2763 \ | |
3854 | 2764 product(intx, AllocatePrefetchLines, 3, \ |
2765 "Number of lines to prefetch ahead of array allocation pointer") \ | |
2766 \ | |
2767 product(intx, AllocateInstancePrefetchLines, 1, \ | |
2768 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
0 | 2769 \ |
2770 product(intx, AllocatePrefetchStepSize, 16, \ | |
2771 "Step size in bytes of sequential prefetch instructions") \ | |
2772 \ | |
2773 product(intx, AllocatePrefetchInstr, 0, \ | |
2774 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
2775 \ | |
2776 /* deoptimization */ \ | |
2777 develop(bool, TraceDeoptimization, false, \ | |
2778 "Trace deoptimization") \ | |
2779 \ | |
2780 develop(bool, DebugDeoptimization, false, \ | |
2781 "Tracing various information while debugging deoptimization") \ | |
2782 \ | |
2783 product(intx, SelfDestructTimer, 0, \ | |
2784 "Will cause VM to terminate after a given time (in minutes) " \ | |
2785 "(0 means off)") \ | |
2786 \ | |
2787 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
2788 "Max. no. of lines in the stack trace for Java exceptions " \ | |
2789 "(0 means all)") \ | |
2790 \ | |
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
2791 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
0 | 2792 "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
|
2793 "(0 means none)")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2794 \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2795 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2796 "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
|
2797 "(0 means none)")) \ |
0 | 2798 \ |
2799 product(intx, SafepointTimeoutDelay, 10000, \ | |
2800 "Delay in milliseconds for option SafepointTimeout") \ | |
2801 \ | |
6818 | 2802 product(intx, NmethodSweepFraction, 16, \ |
0 | 2803 "Number of invocations of sweeper to cover all nmethods") \ |
2804 \ | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2805 product(intx, NmethodSweepCheckInterval, 5, \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2806 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2807 \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2808 notproduct(bool, LogSweeper, false, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2809 "Keep a ring buffer of sweeper activity") \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2810 \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2811 notproduct(intx, SweeperLogEntries, 1024, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2812 "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
|
2813 \ |
0 | 2814 notproduct(intx, MemProfilingInterval, 500, \ |
2815 "Time between each invocation of the MemProfiler") \ | |
2816 \ | |
2817 develop(intx, MallocCatchPtr, -1, \ | |
2818 "Hit breakpoint when mallocing/freeing this pointer") \ | |
2819 \ | |
2820 notproduct(intx, AssertRepeat, 1, \ | |
2821 "number of times to evaluate expression in assert " \ | |
2822 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
2823 \ | |
2824 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
2825 "List of assertions (file:line) to muzzle") \ | |
2826 \ | |
2827 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
2828 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
2829 "is used") \ | |
2830 \ | |
2831 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
2832 "Threshold for total handle allocation when " \ | |
2833 "+TraceHandleAllocation is used") \ | |
2834 \ | |
2835 develop(intx, StackPrintLimit, 100, \ | |
2836 "number of stack frames to print in VM-level stack dump") \ | |
2837 \ | |
2838 notproduct(intx, MaxElementPrintSize, 256, \ | |
2839 "maximum number of elements to print") \ | |
2840 \ | |
2841 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
2842 "maximum number of subklasses to print when printing klass") \ | |
2843 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2844 product(intx, MaxInlineLevel, 9, \ |
0 | 2845 "maximum number of nested calls that are inlined") \ |
2846 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2847 product(intx, MaxRecursiveInlineLevel, 1, \ |
0 | 2848 "maximum number of nested recursive calls that are inlined") \ |
2849 \ | |
675 | 2850 product_pd(intx, InlineSmallCode, \ |
0 | 2851 "Only inline already compiled methods if their code size is " \ |
2852 "less than this") \ | |
2853 \ | |
2854 product(intx, MaxInlineSize, 35, \ | |
2855 "maximum bytecode size of a method to be inlined") \ | |
2856 \ | |
2857 product_pd(intx, FreqInlineSize, \ | |
2858 "maximum bytecode size of a frequent method to be inlined") \ | |
2859 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2860 product(intx, MaxTrivialSize, 6, \ |
0 | 2861 "maximum bytecode size of a trivial method to be inlined") \ |
2862 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2863 product(intx, MinInliningThreshold, 250, \ |
0 | 2864 "min. invocation count a method needs to have to be inlined") \ |
2865 \ | |
2866 develop(intx, MethodHistogramCutoff, 100, \ | |
2867 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
2868 \ | |
2869 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
2870 "# of interpreted methods to show in profile") \ | |
2871 \ | |
2872 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
2873 "# of compiled methods to show in profile") \ | |
2874 \ | |
2875 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
2876 "# of stub methods to show in profile") \ | |
2877 \ | |
2878 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
2879 "# of runtime stub nodes to show in profile") \ | |
2880 \ | |
2881 product(intx, ProfileIntervalsTicks, 100, \ | |
2882 "# of ticks between printing of interval profile " \ | |
2883 "(+ProfileIntervals)") \ | |
2884 \ | |
2885 notproduct(intx, ScavengeALotInterval, 1, \ | |
2886 "Interval between which scavenge will occur with +ScavengeALot") \ | |
2887 \ | |
2888 notproduct(intx, FullGCALotInterval, 1, \ | |
2889 "Interval between which full gc will occur with +FullGCALot") \ | |
2890 \ | |
2891 notproduct(intx, FullGCALotStart, 0, \ | |
2892 "For which invocation to start FullGCAlot") \ | |
2893 \ | |
2894 notproduct(intx, FullGCALotDummies, 32*K, \ | |
2895 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
2896 "to move") \ | |
2897 \ | |
2898 develop(intx, DontYieldALotInterval, 10, \ | |
2899 "Interval between which yields will be dropped (milliseconds)") \ | |
2900 \ | |
2901 develop(intx, MinSleepInterval, 1, \ | |
2902 "Minimum sleep() interval (milliseconds) when " \ | |
2903 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
2904 \ | |
2905 develop(intx, ProfilerPCTickThreshold, 15, \ | |
2906 "Number of ticks in a PC buckets to be a hotspot") \ | |
2907 \ | |
2908 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
2909 "Number of exits until DeoptimizeALot kicks in") \ | |
2910 \ | |
2911 notproduct(intx, ZombieALotInterval, 5, \ | |
2912 "Number of exits until ZombieALot kicks in") \ | |
2913 \ | |
2914 develop(bool, StressNonEntrant, false, \ | |
2915 "Mark nmethods non-entrant at registration") \ | |
2916 \ | |
2917 diagnostic(intx, MallocVerifyInterval, 0, \ | |
2918 "if non-zero, verify C heap after every N calls to " \ | |
2919 "malloc/realloc/free") \ | |
2920 \ | |
2921 diagnostic(intx, MallocVerifyStart, 0, \ | |
2922 "if non-zero, start verifying C heap after Nth call to " \ | |
2923 "malloc/realloc/free") \ | |
2924 \ | |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2925 diagnostic(uintx, MallocMaxTestWords, 0, \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2926 "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
|
2927 "(for testing only)") \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2928 \ |
6818 | 2929 product(intx, TypeProfileWidth, 2, \ |
0 | 2930 "number of receiver types to record in call/cast profile") \ |
2931 \ | |
2932 develop(intx, BciProfileWidth, 2, \ | |
2933 "number of return bci's to record in ret profile") \ | |
2934 \ | |
2935 product(intx, PerMethodRecompilationCutoff, 400, \ | |
2936 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
2937 \ | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
2938 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
0 | 2939 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
2940 \ | |
2941 product(intx, PerMethodTrapLimit, 100, \ | |
2942 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
2943 \ | |
2944 product(intx, PerBytecodeTrapLimit, 4, \ | |
2945 "Limit on traps (of one kind) at a particular BCI") \ | |
2946 \ | |
2947 develop(intx, InlineFrequencyRatio, 20, \ | |
2948 "Ratio of call site execution to caller method invocation") \ | |
2949 \ | |
2950 develop_pd(intx, InlineFrequencyCount, \ | |
2951 "Count of call site execution necessary to trigger frequent " \ | |
2952 "inlining") \ | |
2953 \ | |
2954 develop(intx, InlineThrowCount, 50, \ | |
2955 "Force inlining of interpreted methods that throw this often") \ | |
2956 \ | |
2957 develop(intx, InlineThrowMaxSize, 200, \ | |
2958 "Force inlining of throwing methods smaller than this") \ | |
2959 \ | |
2960 develop(intx, ProfilerNodeSize, 1024, \ | |
2961 "Size in K to allocate for the Profile Nodes of each thread") \ | |
2962 \ | |
2963 product_pd(intx, PreInflateSpin, \ | |
2964 "Number of times to spin wait before inflation") \ | |
2965 \ | |
2966 /* gc parameters */ \ | |
1064 | 2967 product(uintx, InitialHeapSize, 0, \ |
2968 "Initial heap size (in bytes); zero means OldSize + NewSize") \ | |
2969 \ | |
2970 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
2971 "Maximum heap size (in bytes)") \ | |
2972 \ | |
2973 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
2974 "Initial tenured generation size (in bytes)") \ | |
2975 \ | |
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
2976 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
1064 | 2977 "Initial new generation size (in bytes)") \ |
0 | 2978 \ |
2979 product(uintx, MaxNewSize, max_uintx, \ | |
1064 | 2980 "Maximum new generation size (in bytes), max_uintx means set " \ |
2981 "ergonomically") \ | |
0 | 2982 \ |
2983 product(uintx, PretenureSizeThreshold, 0, \ | |
1064 | 2984 "Maximum size in bytes of objects allocated in DefNew " \ |
2985 "generation; zero means no maximum") \ | |
2986 \ | |
2987 product(uintx, TLABSize, 0, \ | |
2988 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
0 | 2989 \ |
2990 product(uintx, MinTLABSize, 2*K, \ | |
2991 "Minimum allowed TLAB size (in bytes)") \ | |
2992 \ | |
2993 product(uintx, TLABAllocationWeight, 35, \ | |
2994 "Allocation averaging weight") \ | |
2995 \ | |
2996 product(uintx, TLABWasteTargetPercent, 1, \ | |
2997 "Percentage of Eden that can be wasted") \ | |
2998 \ | |
2999 product(uintx, TLABRefillWasteFraction, 64, \ | |
3000 "Max TLAB waste at a refill (internal fragmentation)") \ | |
3001 \ | |
3002 product(uintx, TLABWasteIncrement, 4, \ | |
3003 "Increment allowed waste at slow allocation") \ | |
3004 \ | |
8035 | 3005 product(uintx, SurvivorRatio, 8, \ |
0 | 3006 "Ratio of eden/survivor space size") \ |
3007 \ | |
8035 | 3008 product(uintx, NewRatio, 2, \ |
0 | 3009 "Ratio of new/old generation sizes") \ |
3010 \ | |
3011 product_pd(uintx, NewSizeThreadIncrease, \ | |
3012 "Additional size added to desired new generation size per " \ | |
3013 "non-daemon thread (in bytes)") \ | |
3014 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3015 product_pd(uintx, MetaspaceSize, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3016 "Initial size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3017 \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3018 product(uintx, MaxMetaspaceSize, max_uintx, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3019 "Maximum size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3020 \ |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
3021 product(uintx, ClassMetaspaceSize, 2*M, \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3022 "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
|
3023 "UseCompressedKlassPointers") \ |
0 | 3024 \ |
3025 product(uintx, MinHeapFreeRatio, 40, \ | |
3026 "Min percentage of heap free after GC to avoid expansion") \ | |
3027 \ | |
3028 product(uintx, MaxHeapFreeRatio, 70, \ | |
3029 "Max percentage of heap free after GC to avoid shrinking") \ | |
3030 \ | |
3031 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
3032 "Number of milliseconds per MB of free space in the heap") \ | |
3033 \ | |
3034 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
3035 "Min change in heap space due to GC (in bytes)") \ | |
3036 \ | |
6818 | 3037 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3038 "Min expansion of Metaspace (in bytes)") \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3039 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3040 product(uintx, MinMetaspaceFreeRatio, 40, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3041 "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
|
3042 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3043 product(uintx, MaxMetaspaceFreeRatio, 70, \ |
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changeset
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3044 "Max percentage of Metaspace free after GC to avoid shrinking") \ |
0 | 3045 \ |
6818 | 3046 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ |
8040
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diff
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|
3047 "Max expansion of Metaspace without full GC (in bytes)") \ |
0 | 3048 \ |
3049 product(intx, QueuedAllocationWarningCount, 0, \ | |
3050 "Number of times an allocation that queues behind a GC " \ | |
3051 "will retry before printing a warning") \ | |
3052 \ | |
3053 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
3054 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
3055 \ | |
3056 diagnostic(intx, VerifyGCLevel, 0, \ | |
3057 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
3058 \ | |
6818 | 3059 product(uintx, MaxTenuringThreshold, 15, \ |
0 | 3060 "Maximum value for tenuring threshold") \ |
3061 \ | |
6818 | 3062 product(uintx, InitialTenuringThreshold, 7, \ |
0 | 3063 "Initial value for tenuring threshold") \ |
3064 \ | |
8035 | 3065 product(uintx, TargetSurvivorRatio, 50, \ |
0 | 3066 "Desired percentage of survivor space used after scavenge") \ |
3067 \ | |
438 | 3068 product(uintx, MarkSweepDeadRatio, 5, \ |
0 | 3069 "Percentage (0-100) of the old gen allowed as dead wood." \ |
3070 "Serial mark sweep treats this as both the min and max value." \ | |
3071 "CMS uses this value only if it falls back to mark sweep." \ | |
3072 "Par compact uses a variable scale based on the density of the" \ | |
3073 "generation and treats this as the max value when the heap is" \ | |
3074 "either completely full or completely empty. Par compact also" \ | |
3075 "has a smaller default value; see arguments.cpp.") \ | |
3076 \ | |
3077 product(intx, MarkSweepAlwaysCompactCount, 4, \ | |
3078 "How often should we fully compact the heap (ignoring the dead " \ | |
3079 "space parameters)") \ | |
3080 \ | |
3081 product(intx, PrintCMSStatistics, 0, \ | |
3082 "Statistics for CMS") \ | |
3083 \ | |
3084 product(bool, PrintCMSInitiationStatistics, false, \ | |
3085 "Statistics for initiating a CMS collection") \ | |
3086 \ | |
3087 product(intx, PrintFLSStatistics, 0, \ | |
3088 "Statistics for CMS' FreeListSpace") \ | |
3089 \ | |
3090 product(intx, PrintFLSCensus, 0, \ | |
3091 "Census for CMS' FreeListSpace") \ | |
3092 \ | |
3093 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
3094 "Delay in ms between expansion and allocation") \ | |
3095 \ | |
6817 | 3096 develop(uintx, GCWorkerDelayMillis, 0, \ |
3097 "Delay in ms in scheduling GC workers") \ | |
3098 \ | |
0 | 3099 product(intx, DeferThrSuspendLoopCount, 4000, \ |
3100 "(Unstable) Number of times to iterate in safepoint loop " \ | |
3101 " before blocking VM threads ") \ | |
3102 \ | |
3103 product(intx, DeferPollingPageLoopCount, -1, \ | |
3104 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
3105 "before changing safepoint polling page to RO ") \ | |
3106 \ | |
3107 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
3108 \ | |
3109 product(bool, PSChunkLargeArrays, true, \ | |
3110 "true: process large arrays in chunks") \ | |
3111 \ | |
3112 product(uintx, GCDrainStackTargetSize, 64, \ | |
3113 "how many entries we'll try to leave on the stack during " \ | |
3114 "parallel GC") \ | |
3115 \ | |
3116 /* stack parameters */ \ | |
3117 product_pd(intx, StackYellowPages, \ | |
3118 "Number of yellow zone (recoverable overflows) pages") \ | |
3119 \ | |
3120 product_pd(intx, StackRedPages, \ | |
3121 "Number of red zone (unrecoverable overflows) pages") \ | |
3122 \ | |
3123 product_pd(intx, StackShadowPages, \ | |
3124 "Number of shadow zone (for overflow checking) pages" \ | |
3125 " this should exceed the depth of the VM and native call stack") \ | |
3126 \ | |
3127 product_pd(intx, ThreadStackSize, \ | |
3128 "Thread Stack Size (in Kbytes)") \ | |
3129 \ | |
3130 product_pd(intx, VMThreadStackSize, \ | |
3131 "Non-Java Thread Stack Size (in Kbytes)") \ | |
3132 \ | |
3133 product_pd(intx, CompilerThreadStackSize, \ | |
3134 "Compiler Thread Stack Size (in Kbytes)") \ | |
3135 \ | |
3136 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
3137 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
3138 \ | |
3139 product(uintx, ThreadSafetyMargin, 50*M, \ | |
3140 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
3141 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
3142 "disable this feature") \ | |
3143 \ | |
3144 /* code cache parameters */ \ | |
3145 develop(uintx, CodeCacheSegmentSize, 64, \ | |
3146 "Code cache segment size (in bytes) - smallest unit of " \ | |
3147 "allocation") \ | |
3148 \ | |
3149 develop_pd(intx, CodeEntryAlignment, \ | |
3150 "Code entry alignment for generated code (in bytes)") \ | |
3151 \ | |
1365 | 3152 product_pd(intx, OptoLoopAlignment, \ |
3153 "Align inner loops to zero relative to this modulus") \ | |
3154 \ | |
0 | 3155 product_pd(uintx, InitialCodeCacheSize, \ |
3156 "Initial code cache size (in bytes)") \ | |
3157 \ | |
3158 product_pd(uintx, ReservedCodeCacheSize, \ | |
3159 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
3160 \ | |
3161 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
3162 "When less than X space left, we stop compiling.") \ | |
3163 \ | |
3164 product_pd(uintx, CodeCacheExpansionSize, \ | |
3165 "Code cache expansion size (in bytes)") \ | |
3166 \ | |
3167 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
3168 "Minimum number of segments in a code cache block.") \ | |
3169 \ | |
3170 notproduct(bool, ExitOnFullCodeCache, false, \ | |
3171 "Exit the VM if we fill the code cache.") \ | |
3172 \ | |
4039 | 3173 product(bool, UseCodeCacheFlushing, true, \ |
1202 | 3174 "Attempt to clean the code cache before shutting off compiler") \ |
3175 \ | |
3176 product(intx, MinCodeCacheFlushingInterval, 30, \ | |
3177 "Min number of seconds between code cache cleaning sessions") \ | |
3178 \ | |
3179 product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ | |
3180 "When less than X space left, start code cache cleaning") \ | |
3181 \ | |
0 | 3182 /* interpreter debugging */ \ |
3183 develop(intx, BinarySwitchThreshold, 5, \ | |
3184 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
3185 "switch") \ | |
3186 \ | |
3187 develop(intx, StopInterpreterAt, 0, \ | |
3188 "Stops interpreter execution at specified bytecode number") \ | |
3189 \ | |
3190 develop(intx, TraceBytecodesAt, 0, \ | |
3191 "Traces bytecodes starting with specified bytecode number") \ | |
3192 \ | |
3193 /* compiler interface */ \ | |
3194 develop(intx, CIStart, 0, \ | |
3195 "the id of the first compilation to permit") \ | |
3196 \ | |
3197 develop(intx, CIStop, -1, \ | |
3198 "the id of the last compilation to permit") \ | |
3199 \ | |
3200 develop(intx, CIStartOSR, 0, \ | |
3201 "the id of the first osr compilation to permit " \ | |
3202 "(CICountOSR must be on)") \ | |
3203 \ | |
3204 develop(intx, CIStopOSR, -1, \ | |
3205 "the id of the last osr compilation to permit " \ | |
3206 "(CICountOSR must be on)") \ | |
3207 \ | |
3208 develop(intx, CIBreakAtOSR, -1, \ | |
3209 "id of osr compilation to break at") \ | |
3210 \ | |
3211 develop(intx, CIBreakAt, -1, \ | |
3212 "id of compilation to break at") \ | |
3213 \ | |
3214 product(ccstrlist, CompileOnly, "", \ | |
3215 "List of methods (pkg/class.name) to restrict compilation to") \ | |
3216 \ | |
3217 product(ccstr, CompileCommandFile, NULL, \ | |
3218 "Read compiler commands from this file [.hotspot_compiler]") \ | |
3219 \ | |
3220 product(ccstrlist, CompileCommand, "", \ | |
3221 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
3222 \ | |
6972
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6830717: replay of compilations would help with debugging
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parents:
6935
diff
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|
3223 develop(bool, ReplayCompiles, false, \ |
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6830717: replay of compilations would help with debugging
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6935
diff
changeset
|
3224 "Enable replay of compilations from ReplayDataFile") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3225 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
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6935
diff
changeset
|
3226 develop(ccstr, ReplayDataFile, "replay.txt", \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3227 "file containing compilation replay information") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3228 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
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6935
diff
changeset
|
3229 develop(intx, ReplaySuppressInitializers, 2, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3230 "Controls handling of class initialization during replay" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3231 "0 - don't do anything special" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3232 "1 - treat all class initializers as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3233 "2 - treat class initializers for application classes as empty" \ |
bd7a7ce2e264
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minqi
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6935
diff
changeset
|
3234 "3 - allow all class initializers to run during bootstrap but" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
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parents:
6935
diff
changeset
|
3235 " pretend they are empty after starting replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
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6935
diff
changeset
|
3236 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
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6935
diff
changeset
|
3237 develop(bool, ReplayIgnoreInitErrors, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
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6935
diff
changeset
|
3238 "Ignore exceptions thrown during initialization for replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
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6935
diff
changeset
|
3239 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
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6935
diff
changeset
|
3240 develop(bool, DumpReplayDataOnError, true, \ |
bd7a7ce2e264
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6935
diff
changeset
|
3241 "record replay data for crashing compiler threads") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
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6935
diff
changeset
|
3242 \ |
0 | 3243 product(bool, CICompilerCountPerCPU, false, \ |
3244 "1 compiler thread for log(N CPUs)") \ | |
3245 \ | |
3246 develop(intx, CIFireOOMAt, -1, \ | |
3247 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
3248 "(non-negative value throws OOM after this many CI accesses " \ | |
3249 "in each compile)") \ | |
3250 \ | |
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3251 notproduct(bool, CIObjectFactoryVerify, false, \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3252 "enable potentially expensive verification in ciObjectFactory") \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3253 \ |
0 | 3254 /* Priorities */ \ |
3255 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
3256 \ | |
3257 product(intx, ThreadPriorityPolicy, 0, \ | |
3258 "0 : Normal. "\ | |
3259 " VM chooses priorities that are appropriate for normal "\ | |
3260 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
3261 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
3262 " map to lower native priority values. On Windows applications"\ | |
3263 " are allowed to use higher native priorities. However, with "\ | |
3264 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
3265 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
3266 " interfere with system threads. On Linux thread priorities "\ | |
3267 " are ignored because the OS does not support static priority "\ | |
3268 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
3269 " non-root, non-realtime applications. "\ | |
3270 "1 : Aggressive. "\ | |
3271 " Java thread priorities map over to the entire range of "\ | |
3272 " native thread priorities. Higher Java thread priorities map "\ | |
3273 " to higher native thread priorities. This policy should be "\ | |
3274 " used with care, as sometimes it can cause performance "\ | |
3275 " degradation in the application and/or the entire system. On "\ | |
3276 " Linux this policy requires root privilege.") \ | |
3277 \ | |
3278 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
|
3279 "Print priority changes") \ |
0 | 3280 \ |
3281 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
|
3282 "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
|
3283 "specified (-1 means no change)") \ |
0 | 3284 \ |
3285 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
|
3286 "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
|
3287 "(-1 means no change)") \ |
0 | 3288 \ |
3289 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
|
3290 "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
|
3291 "(-1 means no change)") \ |
0 | 3292 \ |
3293 product(bool, CompilerThreadHintNoPreempt, true, \ | |
3294 "(Solaris only) Give compiler threads an extra quanta") \ | |
3295 \ | |
3296 product(bool, VMThreadHintNoPreempt, false, \ | |
3297 "(Solaris only) Give VM thread an extra quanta") \ | |
3298 \ | |
3299 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3300 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3301 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3302 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3303 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3304 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3305 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3306 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3307 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3308 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
3309 \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3310 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
|
3311 "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
|
3312 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3313 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
|
3314 "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
|
3315 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3316 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
|
3317 "ConcurrentMarkSweep thread runs at critical scheduling priority")\ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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4807
diff
changeset
|
3318 \ |
0 | 3319 /* compiler debugging */ \ |
3320 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
3321 "First class to consider when using +CompileTheWorld") \ | |
3322 \ | |
3323 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
3324 "Last class to consider when using +CompileTheWorld") \ | |
3325 \ | |
3326 develop(intx, NewCodeParameter, 0, \ | |
3327 "Testing Only: Create a dedicated integer parameter before " \ | |
3328 "putback") \ | |
3329 \ | |
3330 /* new oopmap storage allocation */ \ | |
3331 develop(intx, MinOopMapAllocation, 8, \ | |
3332 "Minimum number of OopMap entries in an OopMapSet") \ | |
3333 \ | |
3334 /* Background Compilation */ \ | |
3335 develop(intx, LongCompileThreshold, 50, \ | |
3336 "Used with +TraceLongCompiles") \ | |
3337 \ | |
3338 product(intx, StarvationMonitorInterval, 200, \ | |
3339 "Pause between each check in ms") \ | |
3340 \ | |
3341 /* recompilation */ \ | |
3342 product_pd(intx, CompileThreshold, \ | |
3343 "number of interpreted method invocations before (re-)compiling") \ | |
3344 \ | |
3345 product_pd(intx, BackEdgeThreshold, \ | |
3346 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
3347 \ | |
1783 | 3348 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
3349 "Interpreter (tier 0) invocation notification frequency.") \ | |
3350 \ | |
3351 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
3352 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3353 \ | |
3354 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
3355 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3356 "frequency.") \ | |
3357 \ | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3358 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3359 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
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3960
diff
changeset
|
3360 \ |
1783 | 3361 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
3362 "Interpreter (tier 0) invocation notification frequency.") \ | |
3363 \ | |
3364 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
3365 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3366 \ | |
3367 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
3368 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3369 "frequency.") \ | |
3370 \ | |
3371 product(intx, Tier2CompileThreshold, 0, \ | |
3372 "threshold at which tier 2 compilation is invoked") \ | |
3373 \ | |
3374 product(intx, Tier2BackEdgeThreshold, 0, \ | |
3375 "Back edge threshold at which tier 2 compilation is invoked") \ | |
3376 \ | |
3377 product(intx, Tier3InvocationThreshold, 200, \ | |
3378 "Compile if number of method invocations crosses this " \ | |
3379 "threshold") \ | |
3380 \ | |
3381 product(intx, Tier3MinInvocationThreshold, 100, \ | |
3382 "Minimum invocation to compile at tier 3") \ | |
3383 \ | |
3384 product(intx, Tier3CompileThreshold, 2000, \ | |
3385 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
3386 "minimum must be satisfied.") \ | |
3387 \ | |
4819 | 3388 product(intx, Tier3BackEdgeThreshold, 60000, \ |
1783 | 3389 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
3390 \ | |
3391 product(intx, Tier4InvocationThreshold, 5000, \ | |
3392 "Compile if number of method invocations crosses this " \ | |
3393 "threshold") \ | |
3394 \ | |
3395 product(intx, Tier4MinInvocationThreshold, 600, \ | |
3396 "Minimum invocation to compile at tier 4") \ | |
3397 \ | |
3398 product(intx, Tier4CompileThreshold, 15000, \ | |
3399 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
3400 "minimum must be satisfied.") \ | |
3401 \ | |
3402 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
3403 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
3404 \ | |
3405 product(intx, Tier3DelayOn, 5, \ | |
3406 "If C2 queue size grows over this amount per compiler thread " \ | |
3407 "stop compiling at tier 3 and start compiling at tier 2") \ | |
3408 \ | |
3409 product(intx, Tier3DelayOff, 2, \ | |
3410 "If C2 queue size is less than this amount per compiler thread " \ | |
3411 "allow methods compiled at tier 2 transition to tier 3") \ | |
3412 \ | |
3413 product(intx, Tier3LoadFeedback, 5, \ | |
3414 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
3415 "reaches this amount per compiler thread") \ | |
3416 \ | |
3417 product(intx, Tier4LoadFeedback, 3, \ | |
3418 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
3419 "reaches this amount per compiler thread") \ | |
3420 \ | |
3421 product(intx, TieredCompileTaskTimeout, 50, \ | |
3422 "Kill compile task if method was not used within " \ | |
3423 "given timeout in milliseconds") \ | |
3424 \ | |
3425 product(intx, TieredStopAtLevel, 4, \ | |
3426 "Stop at given compilation level") \ | |
3427 \ | |
3428 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
3429 "Start profiling in interpreter if the counters exceed tier 3" \ | |
3430 "thresholds by the specified percentage") \ | |
3431 \ | |
3432 product(intx, TieredRateUpdateMinTime, 1, \ | |
3433 "Minimum rate sampling interval (in milliseconds)") \ | |
3434 \ | |
3435 product(intx, TieredRateUpdateMaxTime, 25, \ | |
3436 "Maximum rate sampling interval (in milliseconds)") \ | |
0 | 3437 \ |
3438 product_pd(bool, TieredCompilation, \ | |
1783 | 3439 "Enable tiered compilation") \ |
3440 \ | |
3441 product(bool, PrintTieredEvents, false, \ | |
3442 "Print tiered events notifications") \ | |
0 | 3443 \ |
3444 product_pd(intx, OnStackReplacePercentage, \ | |
3445 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3446 "of CompileThreshold) before (re-)compiling OSR code") \ | |
3447 \ | |
3448 product(intx, InterpreterProfilePercentage, 33, \ | |
3449 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3450 "of CompileThreshold) before profiling in the interpreter") \ | |
3451 \ | |
3452 develop(intx, MaxRecompilationSearchLength, 10, \ | |
3453 "max. # frames to inspect searching for recompilee") \ | |
3454 \ | |
3455 develop(intx, MaxInterpretedSearchLength, 3, \ | |
3456 "max. # interp. frames to skip when searching for recompilee") \ | |
3457 \ | |
3458 develop(intx, DesiredMethodLimit, 8000, \ | |
3459 "desired max. method size (in bytecodes) after inlining") \ | |
3460 \ | |
3461 develop(intx, HugeMethodLimit, 8000, \ | |
3462 "don't compile methods larger than this if " \ | |
3463 "+DontCompileHugeMethods") \ | |
3464 \ | |
3465 /* New JDK 1.4 reflection implementation */ \ | |
3466 \ | |
3467 develop(bool, UseNewReflection, true, \ | |
3468 "Temporary flag for transition to reflection based on dynamic " \ | |
3469 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
3470 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
3471 "changes were needed") \ | |
3472 \ | |
3473 develop(bool, VerifyReflectionBytecodes, false, \ | |
3474 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
3475 "in situations like that described in 4486457 or for " \ | |
3476 "constructors generated for serialization, so can not be enabled "\ | |
3477 "in product.") \ | |
3478 \ | |
3479 product(bool, ReflectionWrapResolutionErrors, true, \ | |
3480 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
3481 "in InvocationTargetException. See 6531596") \ | |
3482 \ | |
3483 \ | |
3484 develop(intx, FastSuperclassLimit, 8, \ | |
3485 "Depth of hardwired instanceof accelerator array") \ | |
3486 \ | |
3487 /* Properties for Java libraries */ \ | |
3488 \ | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6197
diff
changeset
|
3489 product(uintx, MaxDirectMemorySize, 0, \ |
0 | 3490 "Maximum total size of NIO direct-buffer allocations") \ |
3491 \ | |
3492 /* temporary developer defined flags */ \ | |
3493 \ | |
3494 diagnostic(bool, UseNewCode, false, \ | |
3495 "Testing Only: Use the new version while testing") \ | |
3496 \ | |
3497 diagnostic(bool, UseNewCode2, false, \ | |
3498 "Testing Only: Use the new version while testing") \ | |
3499 \ | |
3500 diagnostic(bool, UseNewCode3, false, \ | |
3501 "Testing Only: Use the new version while testing") \ | |
3502 \ | |
3503 /* flags for performance data collection */ \ | |
3504 \ | |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3505 product(bool, UsePerfData, falseInEmbedded, \ |
0 | 3506 "Flag to disable jvmstat instrumentation for performance testing" \ |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3507 "and problem isolation purposes.") \ |
0 | 3508 \ |
3509 product(bool, PerfDataSaveToFile, false, \ | |
3510 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
3511 \ | |
3512 product(ccstr, PerfDataSaveFile, NULL, \ | |
3513 "Save PerfData memory to the specified absolute pathname," \ | |
3514 "%p in the file name if present will be replaced by pid") \ | |
3515 \ | |
3516 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
3517 "Data sampling interval in milliseconds") \ | |
3518 \ | |
3519 develop(bool, PerfTraceDataCreation, false, \ | |
3520 "Trace creation of Performance Data Entries") \ | |
3521 \ | |
3522 develop(bool, PerfTraceMemOps, false, \ | |
3523 "Trace PerfMemory create/attach/detach calls") \ | |
3524 \ | |
3525 product(bool, PerfDisableSharedMem, false, \ | |
3526 "Store performance data in standard memory") \ | |
3527 \ | |
3528 product(intx, PerfDataMemorySize, 32*K, \ | |
3529 "Size of performance data memory region. Will be rounded " \ | |
3530 "up to a multiple of the native os page size.") \ | |
3531 \ | |
3532 product(intx, PerfMaxStringConstLength, 1024, \ | |
3533 "Maximum PerfStringConstant string length before truncation") \ | |
3534 \ | |
3535 product(bool, PerfAllowAtExitRegistration, false, \ | |
3536 "Allow registration of atexit() methods") \ | |
3537 \ | |
3538 product(bool, PerfBypassFileSystemCheck, false, \ | |
3539 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
3540 \ | |
3541 product(intx, UnguardOnExecutionViolation, 0, \ | |
3542 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
3543 "0=off, 1=conservative, 2=aggressive") \ | |
3544 \ | |
3545 /* Serviceability Support */ \ | |
3546 \ | |
3547 product(bool, ManagementServer, false, \ | |
3548 "Create JMX Management Server") \ | |
3549 \ | |
3550 product(bool, DisableAttachMechanism, false, \ | |
3551 "Disable mechanism that allows tools to attach to this VM") \ | |
3552 \ | |
3553 product(bool, StartAttachListener, false, \ | |
3554 "Always start Attach Listener at VM startup") \ | |
3555 \ | |
3556 manageable(bool, PrintConcurrentLocks, false, \ | |
3557 "Print java.util.concurrent locks in thread dump") \ | |
3558 \ | |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3559 product(bool, TransmitErrorReport, false, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3560 "Enable error report transmission on erroneous termination") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3561 \ |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3562 product(ccstr, ErrorReportServer, NULL, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3563 "Override built-in error report server address") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3564 \ |
0 | 3565 /* Shared spaces */ \ |
3566 \ | |
3567 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
|
3568 "Use shared spaces for metadata") \ |
0 | 3569 \ |
3570 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
|
3571 "Require shared spaces for metadata") \ |
0 | 3572 \ |
3573 product(bool, DumpSharedSpaces, false, \ | |
3574 "Special mode: JVM reads a class list, loads classes, builds " \ | |
3575 "shared spaces, and dumps the shared spaces to a file to be " \ | |
3576 "used in future JVM runs.") \ | |
3577 \ | |
3578 product(bool, PrintSharedSpaces, false, \ | |
3579 "Print usage of shared spaces") \ | |
3580 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3581 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
|
3582 "Size of read-write space for metadata (in bytes)") \ |
0 | 3583 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3584 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
|
3585 "Size of read-only space for metadata (in bytes)") \ |
0 | 3586 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3587 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
|
3588 "Size of the shared miscellaneous data area (in bytes)") \ |
0 | 3589 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3590 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
|
3591 "Size of the shared miscellaneous code area (in bytes)") \ |
0 | 3592 \ |
8804
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3593 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3594 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
|
3595 "Address to allocate shared memory region for class data") \ |
0 | 3596 \ |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3597 diagnostic(bool, EnableInvokeDynamic, true, \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3598 "support JSR 292 (method handles, invokedynamic, " \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3599 "anonymous classes") \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3600 \ |
3757
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3601 diagnostic(bool, PrintMethodHandleStubs, false, \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3602 "Print generated stub code for method handles") \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3603 \ |
710 | 3604 develop(bool, TraceMethodHandles, false, \ |
3605 "trace internal method handle operations") \ | |
3606 \ | |
3607 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
3608 "perform extra checks when constructing method handles") \ | |
3609 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3610 diagnostic(bool, ShowHiddenFrames, false, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3611 "show method handle implementation frames (usually hidden)") \ |
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3612 \ |
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3613 experimental(bool, TrustFinalNonStaticFields, false, \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3614 "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
|
3615 \ |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3616 develop(bool, TraceInvokeDynamic, false, \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3617 "trace internal invoke dynamic operations") \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3618 \ |
0 | 3619 diagnostic(bool, PauseAtStartup, false, \ |
3620 "Causes the VM to pause at startup time and wait for the pause " \ | |
3621 "file to be removed (default: ./vm.paused.<pid>)") \ | |
3622 \ | |
3623 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
3624 "The file to create and for whose removal to await when pausing " \ | |
3625 "at startup. (default: ./vm.paused.<pid>)") \ | |
3626 \ | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3627 diagnostic(bool, PauseAtExit, false, \ |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3628 "Pause and wait for keypress on exit if a debugger is attached") \ |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3629 \ |
0 | 3630 product(bool, ExtendedDTraceProbes, false, \ |
3631 "Enable performance-impacting dtrace probes") \ | |
3632 \ | |
3633 product(bool, DTraceMethodProbes, false, \ | |
3634 "Enable dtrace probes for method-entry and method-exit") \ | |
3635 \ | |
3636 product(bool, DTraceAllocProbes, false, \ | |
3637 "Enable dtrace probes for object allocation") \ | |
3638 \ | |
3639 product(bool, DTraceMonitorProbes, false, \ | |
3640 "Enable dtrace probes for monitor events") \ | |
3641 \ | |
3642 product(bool, RelaxAccessControlCheck, false, \ | |
3643 "Relax the access control checks in the verifier") \ | |
3644 \ | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3645 diagnostic(bool, PrintDTraceDOF, false, \ |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3646 "Print the DTrace DOF passed to the system for JSDT probes") \ |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3647 \ |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6935
diff
changeset
|
3648 product(uintx, StringTableSize, defaultStringTableSize, \ |
2378 | 3649 "Number of buckets in the interned String table") \ |
3650 \ | |
6934 | 3651 develop(bool, TraceDefaultMethods, false, \ |
3652 "Trace the default method processing steps") \ | |
3653 \ | |
3654 develop(bool, ParseAllGenericSignatures, false, \ | |
3655 "Parse all generic signatures while classloading") \ | |
3656 \ | |
3657 develop(bool, VerifyGenericSignatures, false, \ | |
3658 "Abort VM on erroneous or inconsistent generic signatures") \ | |
3659 \ | |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3660 product(bool, UseVMInterruptibleIO, false, \ |
0 | 3661 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3662 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
5915 | 3663 " of this flag is true for JDK 6 and earlier") \ |
3664 \ | |
3665 diagnostic(bool, WhiteBoxAPI, false, \ | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3666 "Enable internal testing APIs") \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3667 \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3668 product(bool, PrintGCCause, true, \ |
8702 | 3669 "Include GC cause in GC logging") \ |
3670 \ | |
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3671 product(bool , AllowNonVirtualCalls, false, \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3672 "Obey the ACC_SUPER flag and allow invokenonvirtual calls") \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3673 \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3674 experimental(uintx, ArrayAllocatorMallocLimit, \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3675 SOLARIS_ONLY(64*K) NOT_SOLARIS(max_uintx), \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3676 "Allocation less than this value will be allocated " \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3677 "using malloc. Larger allocations will use mmap.") |
0 | 3678 |
3679 /* | |
3680 * Macros for factoring of globals | |
3681 */ | |
3682 | |
3683 // Interface macros | |
3684 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3685 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; | |
3686 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; | |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3687 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3688 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
3689 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; | |
3690 #ifdef PRODUCT | |
3691 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; | |
3692 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; | |
3693 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3694 #else | |
3695 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; | |
3696 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; | |
3697 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3698 #endif | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3699 // Special LP64 flags, product only needed for now. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3700 #ifdef _LP64 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3701 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3702 #else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3703 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3704 #endif // _LP64 |
0 | 3705 |
3706 // Implementation macros | |
3707 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; | |
3708 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; | |
3709 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; | |
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3710 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
0 | 3711 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
3712 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; | |
3713 #ifdef PRODUCT | |
3714 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ | |
3715 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ | |
3716 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3717 #else | |
3718 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; | |
3719 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; | |
3720 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; | |
3721 #endif | |
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3722 #ifdef _LP64 |
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3723 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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3724 #else |
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3725 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
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3726 #endif // _LP64 |
0 | 3727 |
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3728 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 | 3729 |
3730 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
1972 | 3731 |
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3732 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) |
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3733 |
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3734 // Extensions |
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3735 |
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3736 #include "runtime/globals_ext.hpp" |
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3737 |
1972 | 3738 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |