Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/globals.hpp @ 8804:91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
Summary: In 64bit VM move CDS archive address to 32G on all platforms using new flag SharedBaseAddress. In 32bit VM set CDS archive address to 3Gb on Linux and let other OSs pick the address.
Reviewed-by: kvn, dcubed, zgu, hseigel
author | coleenp |
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date | Wed, 20 Mar 2013 08:04:54 -0400 |
parents | eca90b8a06eb |
children | 0ac03fef364f |
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 \ |
0 | 460 /* UseMembar is theoretically a temp flag used for memory barrier \ |
461 * removal testing. It was supposed to be removed before FCS but has \ | |
462 * been re-added (see 6401008) */ \ | |
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463 product_pd(bool, UseMembar, \ |
0 | 464 "(Unstable) Issues membars on thread state transitions") \ |
465 \ | |
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466 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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467 * that don't support it. This will be replaced by processor detection \ |
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468 * logic. \ |
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469 */ \ |
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470 product(bool, UsePPCLWSYNC, true, \ |
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471 "Use lwsync instruction if true, else use slower sync") \ |
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472 \ |
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473 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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474 "Whether to clean the chunk pool asynchronously") \ |
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475 \ |
6818 | 476 /* Temporary: See 6948537 */ \ |
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477 experimental(bool, UseMemSetInBOT, true, \ |
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478 "(Unstable) uses memset in BOT updates in GC code") \ |
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479 \ |
0 | 480 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
350
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481 "Enable normal processing of flags relating to field diagnostics")\ |
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482 \ |
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483 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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484 "Enable normal processing of flags relating to experimental features")\ |
0 | 485 \ |
486 product(bool, JavaMonitorsInStackTrace, true, \ | |
487 "Print info. about Java monitor locks when the stacks are dumped")\ | |
488 \ | |
489 product_pd(bool, UseLargePages, \ | |
490 "Use large page memory") \ | |
491 \ | |
389
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492 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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493 "Allocate large pages individually for better affinity") \ |
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494 \ |
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495 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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496 "Fail large pages individual allocation") \ |
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497 \ |
0 | 498 develop(bool, TracePageSizes, false, \ |
499 "Trace page size selection and usage.") \ | |
500 \ | |
501 product(bool, UseNUMA, false, \ | |
502 "Use NUMA if available") \ | |
503 \ | |
3885 | 504 product(bool, UseNUMAInterleaving, false, \ |
505 "Interleave memory across NUMA nodes if available") \ | |
506 \ | |
507 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
508 "Granularity to use for NUMA interleaving on Windows OS") \ | |
509 \ | |
462
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510 product(bool, ForceNUMA, false, \ |
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511 "Force NUMA optimizations on single-node/UMA systems") \ |
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512 \ |
0 | 513 product(intx, NUMAChunkResizeWeight, 20, \ |
514 "Percentage (0-100) used to weight the current sample when " \ | |
515 "computing exponentially decaying average for " \ | |
516 "AdaptiveNUMAChunkSizing") \ | |
517 \ | |
518 product(intx, NUMASpaceResizeRate, 1*G, \ | |
519 "Do not reallocate more that this amount per collection") \ | |
520 \ | |
521 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
522 "Enable adaptive chunk sizing for NUMA") \ | |
523 \ | |
524 product(bool, NUMAStats, false, \ | |
525 "Print NUMA stats in detailed heap information") \ | |
526 \ | |
527 product(intx, NUMAPageScanRate, 256, \ | |
528 "Maximum number of pages to include in the page scan procedure") \ | |
529 \ | |
530 product_pd(bool, NeedsDeoptSuspend, \ | |
531 "True for register window machines (sparc/ia64)") \ | |
532 \ | |
533 product(intx, UseSSE, 99, \ | |
534 "Highest supported SSE instructions set on x86/x64") \ | |
535 \ | |
6894 | 536 product(bool, UseAES, false, \ |
537 "Control whether AES instructions can be used on x86/x64") \ | |
538 \ | |
0 | 539 product(uintx, LargePageSizeInBytes, 0, \ |
540 "Large page size (0 to let VM choose the page size") \ | |
541 \ | |
542 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
543 "Use large pages if max heap is at least this big") \ | |
544 \ | |
545 product(bool, ForceTimeHighResolution, false, \ | |
546 "Using high time resolution(For Win32 only)") \ | |
547 \ | |
548 develop(bool, TraceItables, false, \ | |
549 "Trace initialization and use of itables") \ | |
550 \ | |
551 develop(bool, TracePcPatching, false, \ | |
552 "Trace usage of frame::patch_pc") \ | |
553 \ | |
554 develop(bool, TraceJumps, false, \ | |
555 "Trace assembly jumps in thread ring buffer") \ | |
556 \ | |
557 develop(bool, TraceRelocator, false, \ | |
558 "Trace the bytecode relocator") \ | |
559 \ | |
560 develop(bool, TraceLongCompiles, false, \ | |
561 "Print out every time compilation is longer than " \ | |
562 "a given threashold") \ | |
563 \ | |
564 develop(bool, SafepointALot, false, \ | |
565 "Generates a lot of safepoints. Works with " \ | |
566 "GuaranteedSafepointInterval") \ | |
567 \ | |
568 product_pd(bool, BackgroundCompilation, \ | |
569 "A thread requesting compilation is not blocked during " \ | |
570 "compilation") \ | |
571 \ | |
572 product(bool, PrintVMQWaitTime, false, \ | |
573 "Prints out the waiting time in VM operation queue") \ | |
574 \ | |
575 develop(bool, NoYieldsInMicrolock, false, \ | |
576 "Disable yields in microlock") \ | |
577 \ | |
578 develop(bool, TraceOopMapGeneration, false, \ | |
579 "Shows oopmap generation") \ | |
580 \ | |
581 product(bool, MethodFlushing, true, \ | |
582 "Reclamation of zombie and not-entrant methods") \ | |
583 \ | |
584 develop(bool, VerifyStack, false, \ | |
585 "Verify stack of each thread when it is entering a runtime call") \ | |
586 \ | |
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587 diagnostic(bool, ForceUnreachable, false, \ |
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588 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ |
0 | 589 \ |
590 notproduct(bool, StressDerivedPointers, false, \ | |
591 "Force scavenge when a derived pointers is detected on stack " \ | |
592 "after rtm call") \ | |
593 \ | |
594 develop(bool, TraceDerivedPointers, false, \ | |
595 "Trace traversal of derived pointers on stack") \ | |
596 \ | |
597 notproduct(bool, TraceCodeBlobStacks, false, \ | |
598 "Trace stack-walk of codeblobs") \ | |
599 \ | |
600 product(bool, PrintJNIResolving, false, \ | |
601 "Used to implement -v:jni") \ | |
602 \ | |
603 notproduct(bool, PrintRewrites, false, \ | |
604 "Print methods that are being rewritten") \ | |
605 \ | |
606 product(bool, UseInlineCaches, true, \ | |
607 "Use Inline Caches for virtual calls ") \ | |
608 \ | |
609 develop(bool, InlineArrayCopy, true, \ | |
610 "inline arraycopy native that is known to be part of " \ | |
611 "base library DLL") \ | |
612 \ | |
613 develop(bool, InlineObjectHash, true, \ | |
614 "inline Object::hashCode() native that is known to be part " \ | |
615 "of base library DLL") \ | |
616 \ | |
617 develop(bool, InlineNatives, true, \ | |
618 "inline natives that are known to be part of base library DLL") \ | |
619 \ | |
620 develop(bool, InlineMathNatives, true, \ | |
621 "inline SinD, CosD, etc.") \ | |
622 \ | |
623 develop(bool, InlineClassNatives, true, \ | |
624 "inline Class.isInstance, etc") \ | |
625 \ | |
626 develop(bool, InlineThreadNatives, true, \ | |
627 "inline Thread.currentThread, etc") \ | |
628 \ | |
629 develop(bool, InlineUnsafeOps, true, \ | |
630 "inline memory ops (native methods) from sun.misc.Unsafe") \ | |
631 \ | |
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632 product(bool, CriticalJNINatives, true, \ |
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633 "check for critical JNI entry points") \ |
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634 \ |
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635 notproduct(bool, StressCriticalJNINatives, false, \ |
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636 "Exercise register saving code in critical natives") \ |
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637 \ |
681 | 638 product(bool, UseSSE42Intrinsics, false, \ |
639 "SSE4.2 versions of intrinsics") \ | |
640 \ | |
6894 | 641 product(bool, UseAESIntrinsics, false, \ |
642 "use intrinsics for AES versions of crypto") \ | |
643 \ | |
0 | 644 develop(bool, TraceCallFixup, false, \ |
645 "traces all call fixups") \ | |
646 \ | |
647 develop(bool, DeoptimizeALot, false, \ | |
648 "deoptimize at every exit from the runtime system") \ | |
649 \ | |
434 | 650 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
0 | 651 "a comma separated list of bcis to deoptimize at") \ |
652 \ | |
653 product(bool, DeoptimizeRandom, false, \ | |
654 "deoptimize random frames on random exit from the runtime system")\ | |
655 \ | |
656 notproduct(bool, ZombieALot, false, \ | |
657 "creates zombies (non-entrant) at exit from the runt. system") \ | |
658 \ | |
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659 product(bool, UnlinkSymbolsALot, false, \ |
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660 "unlink unreferenced symbols from the symbol table at safepoints")\ |
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661 \ |
0 | 662 notproduct(bool, WalkStackALot, false, \ |
663 "trace stack (no print) at every exit from the runtime system") \ | |
664 \ | |
4006 | 665 product(bool, Debugging, false, \ |
0 | 666 "set when executing debug methods in debug.ccp " \ |
667 "(to prevent triggering assertions)") \ | |
668 \ | |
669 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
670 "Enable strict checks that safepoints cannot happen for threads " \ | |
671 "that used No_Safepoint_Verifier") \ | |
672 \ | |
673 notproduct(bool, VerifyLastFrame, false, \ | |
674 "Verify oops on last frame on entry to VM") \ | |
675 \ | |
676 develop(bool, TraceHandleAllocation, false, \ | |
677 "Prints out warnings when suspicious many handles are allocated") \ | |
678 \ | |
679 product(bool, UseCompilerSafepoints, true, \ | |
680 "Stop at safepoints in compiled code") \ | |
681 \ | |
682 product(bool, UseSplitVerifier, true, \ | |
683 "use split verifier with StackMapTable attributes") \ | |
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") \ |
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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") \ |
c6c601a0f2d6
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diff
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|
838 \ |
c6c601a0f2d6
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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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diff
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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 \ |
0 | 872 diagnostic(bool, LogCompilation, false, \ |
873 "Log compilation activity in detail to hotspot.log or LogFile") \ | |
874 \ | |
875 product(bool, PrintCompilation, false, \ | |
876 "Print compilations") \ | |
877 \ | |
878 diagnostic(bool, TraceNMethodInstalls, false, \ | |
879 "Trace nmethod intallation") \ | |
880 \ | |
4119
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diff
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|
881 diagnostic(intx, ScavengeRootsInCode, 2, \ |
989
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diff
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|
882 "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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diff
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|
883 "1: allow scavenging from the code cache; " \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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910
diff
changeset
|
884 "2: emit as many constants as the compiler can see") \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
885 \ |
0 | 886 product(bool, AlwaysRestoreFPU, false, \ |
887 "Restore the FPU control word after every JNI call (expensive)") \ | |
888 \ | |
4064
670a74b863fc
7107042: assert(no_dead_loop) failed: dead loop detected
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4059
diff
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|
889 diagnostic(bool, PrintCompilation2, false, \ |
0 | 890 "Print additional statistics per compilation") \ |
891 \ | |
100
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|
892 diagnostic(bool, PrintAdapterHandlers, false, \ |
0 | 893 "Print code generated for i2c/c2i adapters") \ |
894 \ | |
6266
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diff
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|
895 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
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diff
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|
896 "Verify that i2c/c2i adapters are called properly") \ |
1d7922586cf6
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diff
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|
897 \ |
1207
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diff
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|
898 develop(bool, VerifyAdapterSharing, false, \ |
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diff
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|
899 "Verify that the code for shared adapters is the equivalent") \ |
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6921922: fix for 6911204 breaks tagged stack interpreter
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diff
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|
900 \ |
100
c7c777385a15
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diff
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|
901 diagnostic(bool, PrintAssembly, false, \ |
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diff
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|
902 "Print assembly code (using external disassembler.so)") \ |
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|
903 \ |
370
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|
904 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
100
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|
905 "Options string passed to disassembler.so") \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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|
906 \ |
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|
907 diagnostic(bool, PrintNMethods, false, \ |
0 | 908 "Print assembly code for nmethods when generated") \ |
909 \ | |
100
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|
910 diagnostic(bool, PrintNativeNMethods, false, \ |
0 | 911 "Print assembly code for native nmethods when generated") \ |
912 \ | |
913 develop(bool, PrintDebugInfo, false, \ | |
914 "Print debug information for all nmethods when generated") \ | |
915 \ | |
916 develop(bool, PrintRelocations, false, \ | |
917 "Print relocation information for all nmethods when generated") \ | |
918 \ | |
919 develop(bool, PrintDependencies, false, \ | |
920 "Print dependency information for all nmethods when generated") \ | |
921 \ | |
922 develop(bool, PrintExceptionHandlers, false, \ | |
923 "Print exception handler tables for all nmethods when generated") \ | |
924 \ | |
7428
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925 develop(bool, StressCompiledExceptionHandlers, false, \ |
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|
926 "Exercise compiled exception handlers") \ |
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|
927 \ |
0 | 928 develop(bool, InterceptOSException, false, \ |
929 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
930 "exception happens") \ | |
931 \ | |
7595
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|
932 product(bool, PrintCodeCache, false, \ |
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|
933 "Print the code cache memory usage when exiting") \ |
0 | 934 \ |
935 develop(bool, PrintCodeCache2, false, \ | |
7595
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|
936 "Print detailed usage info on the code cache when exiting") \ |
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
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diff
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|
937 \ |
9deda4d8e126
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|
938 product(bool, PrintCodeCacheOnCompilation, false, \ |
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|
939 "Print the code cache memory usage each time a method is compiled") \ |
0 | 940 \ |
100
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|
941 diagnostic(bool, PrintStubCode, false, \ |
0 | 942 "Print generated stub code") \ |
943 \ | |
944 product(bool, StackTraceInThrowable, true, \ | |
945 "Collect backtrace in throwable when exception happens") \ | |
946 \ | |
947 product(bool, OmitStackTraceInFastThrow, true, \ | |
948 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
949 \ | |
950 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
951 "Prints byte code statictics when dumping profiler output") \ | |
952 \ | |
953 product(bool, ProfilerRecordPC, false, \ | |
954 "Collects tick for each 16 byte interval of compiled code") \ | |
955 \ | |
1064 | 956 product(bool, ProfileVM, false, \ |
0 | 957 "Profiles ticks that fall within VM (either in the VM Thread " \ |
958 "or VM code called through stubs)") \ | |
959 \ | |
960 product(bool, ProfileIntervals, false, \ | |
961 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
962 \ | |
963 notproduct(bool, ProfilerCheckIntervals, false, \ | |
964 "Collect and print info on spacing of profiler ticks") \ | |
965 \ | |
966 develop(bool, PrintJVMWarnings, false, \ | |
967 "Prints warnings for unimplemented JVM functions") \ | |
968 \ | |
1870
c77b5c592eab
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|
969 product(bool, PrintWarnings, true, \ |
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|
970 "Prints JVM warnings to output stream") \ |
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|
971 \ |
0 | 972 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
973 "Prints warnings for stalled SpinLocks") \ | |
974 \ | |
975 product(bool, RegisterFinalizersAtInit, true, \ | |
976 "Register finalizable objects at end of Object.<init> or " \ | |
1064 | 977 "after allocation") \ |
0 | 978 \ |
979 develop(bool, RegisterReferences, true, \ | |
980 "Tells whether the VM should register soft/weak/final/phantom " \ | |
981 "references") \ | |
982 \ | |
983 develop(bool, IgnoreRewrites, false, \ | |
984 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
985 "This is unsafe!") \ | |
986 \ | |
987 develop(bool, PrintCodeCacheExtension, false, \ | |
988 "Print extension of code cache") \ | |
989 \ | |
990 develop(bool, UsePrivilegedStack, true, \ | |
991 "Enable the security JVM functions") \ | |
992 \ | |
993 develop(bool, ProtectionDomainVerification, true, \ | |
994 "Verifies protection domain before resolution in system " \ | |
995 "dictionary") \ | |
996 \ | |
997 product(bool, ClassUnloading, true, \ | |
998 "Do unloading of classes") \ | |
999 \ | |
1000 develop(bool, DisableStartThread, false, \ | |
1001 "Disable starting of additional Java threads " \ | |
1002 "(for debugging only)") \ | |
1003 \ | |
1004 develop(bool, MemProfiling, false, \ | |
1005 "Write memory usage profiling to log file") \ | |
1006 \ | |
1007 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
1008 "Prints the system dictionary at exit") \ | |
1009 \ | |
4864
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1010 experimental(intx, PredictedLoadedClassCount, 0, \ |
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1011 "Experimental: Tune loaded class cache starting size.") \ |
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1012 \ |
0 | 1013 diagnostic(bool, UnsyncloadClass, false, \ |
514 | 1014 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
1015 "class loader must call VM synchronized for findClass " \ | |
1016 "and defineClass.") \ | |
1017 \ | |
1018 product(bool, AlwaysLockClassLoader, false, \ | |
1019 "Require the VM to acquire the class loader lock before calling " \ | |
1020 "loadClass() even for class loaders registering " \ | |
1064 | 1021 "as parallel capable") \ |
514 | 1022 \ |
1023 product(bool, AllowParallelDefineClass, false, \ | |
1024 "Allow parallel defineClass requests for class loaders " \ | |
1064 | 1025 "registering as parallel capable") \ |
514 | 1026 \ |
1027 product(bool, MustCallLoadClassInternal, false, \ | |
1064 | 1028 "Call loadClassInternal() rather than loadClass()") \ |
0 | 1029 \ |
1030 product_pd(bool, DontYieldALot, \ | |
1031 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
1032 \ | |
1033 product_pd(bool, ConvertSleepToYield, \ | |
1034 "Converts sleep(0) to thread yield " \ | |
1035 "(may be off for SOLARIS to improve GUI)") \ | |
1036 \ | |
1037 product(bool, ConvertYieldToSleep, false, \ | |
1038 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
1039 "behavior (SOLARIS only)") \ | |
1040 \ | |
1041 product(bool, UseBoundThreads, true, \ | |
1042 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
1043 \ | |
1044 develop(bool, UseDetachedThreads, true, \ | |
1045 "Use detached threads that are recycled upon termination " \ | |
1046 "(for SOLARIS only)") \ | |
1047 \ | |
1048 product(bool, UseLWPSynchronization, true, \ | |
1049 "Use LWP-based instead of libthread-based synchronization " \ | |
1050 "(SPARC only)") \ | |
1051 \ | |
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1052 product(ccstr, SyncKnobs, NULL, \ |
0 | 1053 "(Unstable) Various monitor synchronization tunables") \ |
1054 \ | |
1055 product(intx, EmitSync, 0, \ | |
1056 "(Unsafe,Unstable) " \ | |
1057 " Controls emission of inline sync fast-path code") \ | |
1058 \ | |
1587 | 1059 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
1060 \ | |
1061 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
1062 \ | |
0 | 1063 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ |
1064 \ | |
1065 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
1066 \ | |
1067 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
1068 \ | |
7587 | 1069 product(intx, hashCode, 5, \ |
0 | 1070 "(Unstable) select hashCode generation algorithm" ) \ |
1071 \ | |
1072 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
1073 "(Unstable, Linux-specific)" \ | |
1074 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
1075 \ | |
1064 | 1076 product(bool, FilterSpuriousWakeups, true, \ |
1077 "Prevent spurious or premature wakeups from object.wait " \ | |
1078 "(Solaris only)") \ | |
0 | 1079 \ |
1080 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
1081 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
1082 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
1083 \ | |
1084 develop(bool, UsePthreads, false, \ | |
1085 "Use pthread-based instead of libthread-based synchronization " \ | |
1086 "(SPARC only)") \ | |
1087 \ | |
1088 product(bool, AdjustConcurrency, false, \ | |
1089 "call thr_setconcurrency at thread create time to avoid " \ | |
1090 "LWP starvation on MP systems (For Solaris Only)") \ | |
1091 \ | |
1092 product(bool, ReduceSignalUsage, false, \ | |
1093 "Reduce the use of OS signals in Java and/or the VM") \ | |
1094 \ | |
1095 develop_pd(bool, ShareVtableStubs, \ | |
1096 "Share vtable stubs (smaller code but worse branch prediction") \ | |
1097 \ | |
1098 develop(bool, LoadLineNumberTables, true, \ | |
1099 "Tells whether the class file parser loads line number tables") \ | |
1100 \ | |
1101 develop(bool, LoadLocalVariableTables, true, \ | |
1102 "Tells whether the class file parser loads local variable tables")\ | |
1103 \ | |
1104 develop(bool, LoadLocalVariableTypeTables, true, \ | |
1105 "Tells whether the class file parser loads local variable type tables")\ | |
1106 \ | |
1107 product(bool, AllowUserSignalHandlers, false, \ | |
1108 "Do not complain if the application installs signal handlers " \ | |
1109 "(Solaris & Linux only)") \ | |
1110 \ | |
1111 product(bool, UseSignalChaining, true, \ | |
1112 "Use signal-chaining to invoke signal handlers installed " \ | |
1113 "by the application (Solaris & Linux only)") \ | |
1114 \ | |
1115 product(bool, UseAltSigs, false, \ | |
1116 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
1064 | 1117 "internal signals (Solaris only)") \ |
0 | 1118 \ |
1119 product(bool, AllowJNIEnvProxy, false, \ | |
1120 "Allow JNIEnv proxies for jdbx") \ | |
1121 \ | |
1122 product(bool, JNIDetachReleasesMonitors, true, \ | |
1123 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
1124 \ | |
1125 product(bool, RestoreMXCSROnJNICalls, false, \ | |
1126 "Restore MXCSR when returning from JNI calls") \ | |
1127 \ | |
1128 product(bool, CheckJNICalls, false, \ | |
1129 "Verify all arguments to JNI calls") \ | |
1130 \ | |
1131 product(bool, UseFastJNIAccessors, true, \ | |
1132 "Use optimized versions of Get<Primitive>Field") \ | |
1133 \ | |
1134 product(bool, EagerXrunInit, false, \ | |
1135 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
1136 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
1137 \ | |
1138 product(bool, PreserveAllAnnotations, false, \ | |
1139 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
1140 \ | |
1141 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
1142 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
1143 \ | |
1144 product(bool, LazyBootClassLoader, true, \ | |
1145 "Enable/disable lazy opening of boot class path entries") \ | |
1146 \ | |
405 | 1147 product(bool, UseXMMForArrayCopy, false, \ |
1148 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
1149 \ | |
0 | 1150 product(intx, FieldsAllocationStyle, 1, \ |
1366
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1151 "0 - type based with oops first, 1 - with oops last, " \ |
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|
1152 "2 - oops in super and sub classes are together") \ |
0 | 1153 \ |
1154 product(bool, CompactFields, true, \ | |
1155 "Allocate nonstatic fields in gaps between previous fields") \ | |
1156 \ | |
1157 notproduct(bool, PrintCompactFieldsSavings, false, \ | |
1158 "Print how many words were saved with CompactFields") \ | |
1159 \ | |
7587 | 1160 notproduct(bool, PrintFieldLayout, false, \ |
1161 "Print field layout for each class") \ | |
1162 \ | |
1163 product(intx, ContendedPaddingWidth, 128, \ | |
1164 "How many bytes to pad the fields/classes marked @Contended with")\ | |
1165 \ | |
1166 product(bool, EnableContended, true, \ | |
1167 "Enable @Contended annotation support") \ | |
1168 \ | |
1169 product(bool, RestrictContended, true, \ | |
1170 "Restrict @Contended to trusted classes") \ | |
1171 \ | |
0 | 1172 product(bool, UseBiasedLocking, true, \ |
1173 "Enable biased locking in JVM") \ | |
1174 \ | |
1175 product(intx, BiasedLockingStartupDelay, 4000, \ | |
1176 "Number of milliseconds to wait before enabling biased locking") \ | |
1177 \ | |
1178 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
1179 "Print statistics of biased locking in JVM") \ | |
1180 \ | |
1181 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
1182 "Threshold of number of revocations per type to try to " \ | |
1183 "rebias all objects in the heap of that type") \ | |
1184 \ | |
1185 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
1186 "Threshold of number of revocations per type to permanently " \ | |
1187 "revoke biases of all objects in the heap of that type") \ | |
1188 \ | |
1189 product(intx, BiasedLockingDecayTime, 25000, \ | |
1190 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
1191 "type after previous bulk rebias") \ | |
1192 \ | |
1193 /* tracing */ \ | |
1194 \ | |
1195 notproduct(bool, TraceRuntimeCalls, false, \ | |
1196 "Trace run-time calls") \ | |
1197 \ | |
1198 develop(bool, TraceJNICalls, false, \ | |
1199 "Trace JNI calls") \ | |
1200 \ | |
1201 notproduct(bool, TraceJVMCalls, false, \ | |
1202 "Trace JVM calls") \ | |
1203 \ | |
370
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1204 product(ccstr, TraceJVMTI, NULL, \ |
0 | 1205 "Trace flags for JVMTI functions and events") \ |
1206 \ | |
1207 /* This option can change an EMCP method into an obsolete method. */ \ | |
1208 /* This can affect tests that except specific methods to be EMCP. */ \ | |
1209 /* This option should be used with caution. */ \ | |
1210 product(bool, StressLdcRewrite, false, \ | |
1211 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
1212 \ | |
1213 product(intx, TraceRedefineClasses, 0, \ | |
1214 "Trace level for JVMTI RedefineClasses") \ | |
1215 \ | |
1574 | 1216 develop(bool, StressMethodComparator, false, \ |
1217 "run the MethodComparator on all loaded methods") \ | |
1218 \ | |
0 | 1219 /* change to false by default sometime after Mustang */ \ |
1220 product(bool, VerifyMergedCPBytecodes, true, \ | |
1221 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
1222 \ | |
1223 develop(bool, TraceJNIHandleAllocation, false, \ | |
1224 "Trace allocation/deallocation of JNI handle blocks") \ | |
1225 \ | |
1226 develop(bool, TraceThreadEvents, false, \ | |
1227 "Trace all thread events") \ | |
1228 \ | |
1229 develop(bool, TraceBytecodes, false, \ | |
1230 "Trace bytecode execution") \ | |
1231 \ | |
1232 develop(bool, TraceClassInitialization, false, \ | |
1233 "Trace class initialization") \ | |
1234 \ | |
1235 develop(bool, TraceExceptions, false, \ | |
1236 "Trace exceptions") \ | |
1237 \ | |
1238 develop(bool, TraceICs, false, \ | |
1239 "Trace inline cache changes") \ | |
1240 \ | |
1241 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
1242 "Trace method invocation counter overflow") \ | |
1243 \ | |
1244 develop(bool, TraceInlineCacheClearing, false, \ | |
1245 "Trace clearing of inline caches in nmethods") \ | |
1246 \ | |
1247 develop(bool, TraceDependencies, false, \ | |
1248 "Trace dependencies") \ | |
1249 \ | |
1250 develop(bool, VerifyDependencies, trueInDebug, \ | |
1251 "Exercise and verify the compilation dependency mechanism") \ | |
1252 \ | |
1253 develop(bool, TraceNewOopMapGeneration, false, \ | |
1254 "Trace OopMapGeneration") \ | |
1255 \ | |
1256 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
1257 "Trace OopMapGeneration: print detailed cell states") \ | |
1258 \ | |
1259 develop(bool, TimeOopMap, false, \ | |
1260 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
1261 \ | |
1262 develop(bool, TimeOopMap2, false, \ | |
1263 "Time calls to GenerateOopMap::compute_map() individually") \ | |
1264 \ | |
1265 develop(bool, TraceMonitorMismatch, false, \ | |
1266 "Trace monitor matching failures during OopMapGeneration") \ | |
1267 \ | |
1268 develop(bool, TraceOopMapRewrites, false, \ | |
1269 "Trace rewritting of method oops during oop map generation") \ | |
1270 \ | |
1271 develop(bool, TraceSafepoint, false, \ | |
1272 "Trace safepoint operations") \ | |
1273 \ | |
1274 develop(bool, TraceICBuffer, false, \ | |
1275 "Trace usage of IC buffer") \ | |
1276 \ | |
1277 develop(bool, TraceCompiledIC, false, \ | |
1278 "Trace changes of compiled IC") \ | |
1279 \ | |
1280 notproduct(bool, TraceZapDeadLocals, false, \ | |
1281 "Trace zapping dead locals") \ | |
1282 \ | |
1283 develop(bool, TraceStartupTime, false, \ | |
1284 "Trace setup time") \ | |
1285 \ | |
1286 develop(bool, TraceProtectionDomainVerification, false, \ | |
1287 "Trace protection domain verifcation") \ | |
1288 \ | |
1289 develop(bool, TraceClearedExceptions, false, \ | |
1290 "Prints when an exception is forcibly cleared") \ | |
1291 \ | |
1292 product(bool, TraceClassResolution, false, \ | |
1293 "Trace all constant pool resolutions (for debugging)") \ | |
1294 \ | |
1295 product(bool, TraceBiasedLocking, false, \ | |
1296 "Trace biased locking in JVM") \ | |
1297 \ | |
1298 product(bool, TraceMonitorInflation, false, \ | |
1299 "Trace monitor inflation in JVM") \ | |
1300 \ | |
1301 /* gc */ \ | |
1302 \ | |
1303 product(bool, UseSerialGC, false, \ | |
342
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1304 "Use the serial garbage collector") \ |
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|
1305 \ |
1193
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|
1306 product(bool, UseG1GC, false, \ |
342
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|
1307 "Use the Garbage-First garbage collector") \ |
0 | 1308 \ |
1309 product(bool, UseParallelGC, false, \ | |
1310 "Use the Parallel Scavenge garbage collector") \ | |
1311 \ | |
1312 product(bool, UseParallelOldGC, false, \ | |
1313 "Use the Parallel Old garbage collector") \ | |
1314 \ | |
1315 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
1316 "How often should we maximally compact the heap (not allowing " \ | |
1317 "any dead space)") \ | |
1318 \ | |
1319 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
1320 "The collection count for the first maximum compaction") \ | |
1321 \ | |
1322 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
1323 "In the Parallel Old garbage collector maximum compaction for " \ | |
1324 "a system GC") \ | |
1325 \ | |
1326 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
1327 "The mean used by the par compact dead wood" \ | |
1328 "limiter (a number between 0-100).") \ | |
1329 \ | |
1330 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
1331 "The standard deviation used by the par compact dead wood" \ | |
1332 "limiter (a number between 0-100).") \ | |
1333 \ | |
1334 product(uintx, ParallelGCThreads, 0, \ | |
1335 "Number of parallel threads parallel gc will use") \ | |
1336 \ | |
4095
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1337 product(bool, UseDynamicNumberOfGCThreads, false, \ |
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|
1338 "Dynamically choose the number of parallel threads " \ |
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|
1339 "parallel gc will use") \ |
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|
1340 \ |
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|
1341 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
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|
1342 "Force dynamic selection of the number of" \ |
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1343 "parallel threads parallel gc will use to aid debugging") \ |
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1344 \ |
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1345 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
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1346 "Size of heap (bytes) per GC thread used in calculating the " \ |
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|
1347 "number of GC threads") \ |
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1348 \ |
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1349 product(bool, TraceDynamicGCThreads, false, \ |
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1350 "Trace the dynamic GC thread usage") \ |
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1351 \ |
483
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|
1352 develop(bool, ParallelOldGCSplitALot, false, \ |
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|
1353 "Provoke splitting (copying data from a young gen space to" \ |
0f773163217d
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481
diff
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|
1354 "multiple destination spaces)") \ |
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1355 \ |
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|
1356 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
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|
1357 "How often to provoke splitting a young gen space") \ |
0 | 1358 \ |
1284 | 1359 product(uintx, ConcGCThreads, 0, \ |
1360 "Number of threads concurrent gc will use") \ | |
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1361 \ |
0 | 1362 product(uintx, YoungPLABSize, 4096, \ |
1363 "Size of young gen promotion labs (in HeapWords)") \ | |
1364 \ | |
1365 product(uintx, OldPLABSize, 1024, \ | |
1366 "Size of old gen promotion labs (in HeapWords)") \ | |
1367 \ | |
1368 product(uintx, GCTaskTimeStampEntries, 200, \ | |
1369 "Number of time stamp entries per gc worker thread") \ | |
1370 \ | |
1371 product(bool, AlwaysTenure, false, \ | |
1372 "Always tenure objects in eden. (ParallelGC only)") \ | |
1373 \ | |
1374 product(bool, NeverTenure, false, \ | |
1064 | 1375 "Never tenure objects in eden, May tenure on overflow " \ |
1376 "(ParallelGC only)") \ | |
0 | 1377 \ |
1378 product(bool, ScavengeBeforeFullGC, true, \ | |
1064 | 1379 "Scavenge youngest generation before each full GC, " \ |
1380 "used with UseParallelGC") \ | |
0 | 1381 \ |
1382 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
1383 "Allow scavenges to occur when to_space contains objects.") \ | |
1384 \ | |
1385 product(bool, UseConcMarkSweepGC, false, \ | |
1386 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
1387 \ | |
1388 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
1389 "A System.gc() request invokes a concurrent collection;" \ | |
1390 " (effective only when UseConcMarkSweepGC)") \ | |
1391 \ | |
1392 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
1064 | 1393 "A System.gc() request invokes a concurrent collection and " \ |
1394 "also unloads classes during such a concurrent gc cycle " \ | |
1395 "(effective only when UseConcMarkSweepGC)") \ | |
0 | 1396 \ |
1520
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1397 product(bool, GCLockerInvokesConcurrent, false, \ |
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|
1398 "The exit of a JNI CS necessitating a scavenge also" \ |
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1399 " kicks off a bkgrd concurrent collection") \ |
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1400 \ |
1991
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diff
changeset
|
1401 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
016a3628c885
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diff
changeset
|
1402 "How much the GC can expand the eden by while the GC locker " \ |
016a3628c885
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diff
changeset
|
1403 "is active (as a percentage)") \ |
016a3628c885
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changeset
|
1404 \ |
0 | 1405 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
1406 "Use Adaptive Free Lists in the CMS generation") \ | |
1407 \ | |
1408 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
1409 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
1410 \ | |
1411 develop(bool, RotateCMSCollectionTypes, false, \ | |
1412 "Rotate the CMS collections among concurrent and STW") \ | |
1413 \ | |
1414 product(bool, UseCMSBestFit, true, \ | |
1415 "Use CMS best fit allocation strategy") \ | |
1416 \ | |
1417 product(bool, UseCMSCollectionPassing, true, \ | |
1418 "Use passing of collection from background to foreground") \ | |
1419 \ | |
1420 product(bool, UseParNewGC, false, \ | |
1421 "Use parallel threads in the new generation.") \ | |
1422 \ | |
1423 product(bool, ParallelGCVerbose, false, \ | |
1424 "Verbose output for parallel GC.") \ | |
1425 \ | |
1426 product(intx, ParallelGCBufferWastePct, 10, \ | |
1427 "wasted fraction of parallel allocation buffer.") \ | |
1428 \ | |
3357
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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|
1429 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
fc2b798ab316
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changeset
|
1430 "Retain parallel allocation buffers across scavenges; " \ |
fc2b798ab316
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|
1431 " -- disabled because this currently conflicts with " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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|
1432 " parallel card scanning under certain conditions ") \ |
0 | 1433 \ |
1434 product(intx, TargetPLABWastePct, 10, \ | |
1435 "target wasted space in last buffer as pct of overall allocation")\ | |
1436 \ | |
1437 product(uintx, PLABWeight, 75, \ | |
1438 "Percentage (0-100) used to weight the current sample when" \ | |
1439 "computing exponentially decaying average for ResizePLAB.") \ | |
1440 \ | |
1441 product(bool, ResizePLAB, true, \ | |
1442 "Dynamically resize (survivor space) promotion labs") \ | |
1443 \ | |
1444 product(bool, PrintPLAB, false, \ | |
1445 "Print (survivor space) promotion labs sizing decisions") \ | |
1446 \ | |
1447 product(intx, ParGCArrayScanChunk, 50, \ | |
1448 "Scan a subset and push remainder, if array is bigger than this") \ | |
1449 \ | |
695 | 1450 product(bool, ParGCUseLocalOverflow, false, \ |
1451 "Instead of a global overflow list, use local overflow stacks") \ | |
1452 \ | |
679
cea947c8a988
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diff
changeset
|
1453 product(bool, ParGCTrimOverflow, true, \ |
695 | 1454 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
679
cea947c8a988
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diff
changeset
|
1455 \ |
534 | 1456 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
1457 "Whether we should simulate work queue overflow in ParNew") \ | |
1458 \ | |
1459 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
1064 | 1460 "An `interval' counter that determines how frequently " \ |
1461 "we simulate overflow; a smaller number increases frequency") \ | |
534 | 1462 \ |
1463 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
0 | 1464 "The desired number of objects to claim from the overflow list") \ |
1465 \ | |
4728
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1466 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
3357
fc2b798ab316
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changeset
|
1467 "The number of strides per worker thread that we divide up the " \ |
fc2b798ab316
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|
1468 "card table scanning work into") \ |
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1469 \ |
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|
1470 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
fc2b798ab316
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|
1471 "The number of cards in each chunk of the parallel chunks used " \ |
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1472 "during card table scanning") \ |
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1473 \ |
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1474 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
0 | 1475 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
1476 "parallel GC.") \ | |
1477 \ | |
1145
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1478 product(uintx, OldPLABWeight, 50, \ |
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1479 "Percentage (0-100) used to weight the current sample when" \ |
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1480 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
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1481 \ |
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|
1482 product(bool, ResizeOldPLAB, true, \ |
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1483 "Dynamically resize (old gen) promotion labs") \ |
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1484 \ |
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1485 product(bool, PrintOldPLAB, false, \ |
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|
1486 "Print (old gen) promotion labs sizing decisions") \ |
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|
1487 \ |
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1488 product(uintx, CMSOldPLABMin, 16, \ |
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|
1489 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
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|
1490 \ |
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|
1491 product(uintx, CMSOldPLABMax, 1024, \ |
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|
1492 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
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|
1493 \ |
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|
1494 product(uintx, CMSOldPLABNumRefills, 4, \ |
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|
1495 "Nominal number of refills of CMS gen promotion lab cache" \ |
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changeset
|
1496 " per worker per block size") \ |
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|
1497 \ |
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|
1498 product(bool, CMSOldPLABResizeQuicker, false, \ |
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|
1499 "Whether to react on-the-fly during a scavenge to a sudden" \ |
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|
1500 " change in block demand rate") \ |
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|
1501 \ |
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|
1502 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
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1503 "The tolerance of the phase-change detector for on-the-fly" \ |
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changeset
|
1504 " PLAB resizing during a scavenge") \ |
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|
1505 \ |
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|
1506 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
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|
1507 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
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|
1508 " during a scavenge") \ |
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|
1509 \ |
0 | 1510 product(bool, AlwaysPreTouch, false, \ |
1511 "It forces all freshly committed pages to be pre-touched.") \ | |
1512 \ | |
2368
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|
1513 product_pd(intx, CMSYoungGenPerWorker, \ |
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|
1514 "The maximum size of young gen chosen by default per GC worker " \ |
1064 | 1515 "thread available") \ |
0 | 1516 \ |
1517 product(bool, CMSIncrementalMode, false, \ | |
1518 "Whether CMS GC should operate in \"incremental\" mode") \ | |
1519 \ | |
1520 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
1521 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
1522 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
1523 "value") \ | |
1524 \ | |
1525 product(bool, CMSIncrementalPacing, true, \ | |
1526 "Whether the CMS incremental mode duty cycle should be " \ | |
1527 "automatically adjusted") \ | |
1528 \ | |
1529 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
1064 | 1530 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
1531 "enabled (a percentage, 0-100)") \ | |
0 | 1532 \ |
1533 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
1064 | 1534 "Percentage (0-100) used to add conservatism when computing the " \ |
1535 "duty cycle") \ | |
0 | 1536 \ |
1537 product(uintx, CMSIncrementalOffset, 0, \ | |
1538 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
1064 | 1539 " is shifted to the right within the period between young GCs") \ |
0 | 1540 \ |
1145
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|
1541 product(uintx, CMSExpAvgFactor, 50, \ |
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|
1542 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
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changeset
|
1543 "computing exponential averages for CMS statistics.") \ |
e018e6884bd8
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changeset
|
1544 \ |
e018e6884bd8
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|
1545 product(uintx, CMS_FLSWeight, 75, \ |
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changeset
|
1546 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
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|
1547 "computing exponentially decating averages for CMS FLS statistics.") \ |
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|
1548 \ |
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|
1549 product(uintx, CMS_FLSPadding, 1, \ |
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changeset
|
1550 "The multiple of deviation from mean to use for buffering" \ |
0 | 1551 "against volatility in free list demand.") \ |
1552 \ | |
1553 product(uintx, FLSCoalescePolicy, 2, \ | |
1554 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
1555 \ | |
1145
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|
1556 product(bool, FLSAlwaysCoalesceLarge, false, \ |
e018e6884bd8
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changeset
|
1557 "CMS: Larger free blocks are always available for coalescing") \ |
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|
1558 \ |
e018e6884bd8
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|
1559 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
e018e6884bd8
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|
1560 "CMS: the smaller the percentage the greater the coalition force")\ |
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|
1561 \ |
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|
1562 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
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|
1563 "CMS: the factor by which to inflate estimated demand of small" \ |
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|
1564 " block sizes to prevent coalescing with an adjoining block") \ |
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|
1565 \ |
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|
1566 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
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changeset
|
1567 "CMS: the factor by which to inflate estimated demand of large" \ |
e018e6884bd8
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changeset
|
1568 " block sizes to prevent coalescing with an adjoining block") \ |
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|
1569 \ |
e018e6884bd8
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|
1570 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
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changeset
|
1571 "CMS: the factor by which to inflate estimated demand of small" \ |
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|
1572 " block sizes to prevent splitting to supply demand for smaller" \ |
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changeset
|
1573 " blocks") \ |
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|
1574 \ |
e018e6884bd8
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|
1575 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
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changeset
|
1576 "CMS: the factor by which to inflate estimated demand of large" \ |
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changeset
|
1577 " block sizes to prevent splitting to supply demand for smaller" \ |
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changeset
|
1578 " blocks") \ |
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|
1579 \ |
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|
1580 product(bool, CMSExtrapolateSweep, false, \ |
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changeset
|
1581 "CMS: cushion for block demand during sweep") \ |
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|
1582 \ |
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1583 product(uintx, CMS_SweepWeight, 75, \ |
1064 | 1584 "Percentage (0-100) used to weight the current sample when " \ |
1585 "computing exponentially decaying average for inter-sweep " \ | |
1586 "duration") \ | |
0 | 1587 \ |
1145
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1588 product(uintx, CMS_SweepPadding, 1, \ |
1064 | 1589 "The multiple of deviation from mean to use for buffering " \ |
0 | 1590 "against volatility in inter-sweep duration.") \ |
1591 \ | |
1592 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
1593 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
1064 | 1594 "duration exceeds this threhold in milliseconds") \ |
0 | 1595 \ |
1596 develop(bool, CMSTraceIncrementalMode, false, \ | |
1597 "Trace CMS incremental mode") \ | |
1598 \ | |
1599 develop(bool, CMSTraceIncrementalPacing, false, \ | |
1600 "Trace CMS incremental mode pacing computation") \ | |
1601 \ | |
1602 develop(bool, CMSTraceThreadState, false, \ | |
1603 "Trace the CMS thread state (enable the trace_state() method)") \ | |
1604 \ | |
7454
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1605 product(bool, CMSClassUnloadingEnabled, true, \ |
0 | 1606 "Whether class unloading enabled when using CMS GC") \ |
1607 \ | |
94
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1608 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
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diff
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|
1609 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
0834225a7916
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diff
changeset
|
1610 " for which classes may not be unloaded") \ |
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1611 \ |
0 | 1612 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
1613 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
1614 \ | |
1615 product(bool, UseCMSCompactAtFullCollection, true, \ | |
1616 "Use mark sweep compact at full collections") \ | |
1617 \ | |
1618 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
1619 "Number of CMS full collection done before compaction if > 0") \ | |
1620 \ | |
1621 develop(intx, CMSDictionaryChoice, 0, \ | |
1622 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
1623 \ | |
1624 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
6818 | 1625 "Replenish an indexed free list with this number of chunks") \ |
0 | 1626 \ |
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1627 product(bool, CMSReplenishIntermediate, true, \ |
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1628 "Replenish all intermediate free-list caches") \ |
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1629 \ |
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1630 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
1777
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1631 "When satisfying batched demand, split blocks from the " \ |
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1632 "IndexedFreeList whose size is a multiple of requested size") \ |
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1633 \ |
0 | 1634 product(bool, CMSLoopWarn, false, \ |
1635 "Warn in case of excessive CMS looping") \ | |
1636 \ | |
1637 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
1638 "Whether preserved marks should be restored early") \ | |
1639 \ | |
1284 | 1640 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
1641 "Size of marking stack") \ | |
1642 \ | |
1643 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
1644 "Max size of marking stack") \ | |
0 | 1645 \ |
1646 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
1647 "Whether we should simulate frequent marking stack / work queue" \ | |
1648 " overflow") \ | |
1649 \ | |
534 | 1650 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
1651 "An `interval' counter that determines how frequently" \ | |
0 | 1652 " we simulate overflow; a smaller number increases frequency") \ |
1653 \ | |
1654 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
1655 "(Temporary, subject to experimentation)" \ | |
1656 "Maximum number of abortable preclean iterations, if > 0") \ | |
1657 \ | |
1658 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
1659 "(Temporary, subject to experimentation)" \ | |
1660 "Maximum time in abortable preclean in ms") \ | |
1661 \ | |
1662 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
1663 "(Temporary, subject to experimentation)" \ | |
1664 "Nominal minimum work per abortable preclean iteration") \ | |
1665 \ | |
1887
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1666 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
0 | 1667 "(Temporary, subject to experimentation)" \ |
1668 " Time that we sleep between iterations when not given" \ | |
1669 " enough work per iteration") \ | |
1670 \ | |
1671 product(uintx, CMSRescanMultiple, 32, \ | |
1672 "Size (in cards) of CMS parallel rescan task") \ | |
1673 \ | |
1674 product(uintx, CMSConcMarkMultiple, 32, \ | |
1675 "Size (in cards) of CMS concurrent MT marking task") \ | |
1676 \ | |
1677 product(bool, CMSAbortSemantics, false, \ | |
1678 "Whether abort-on-overflow semantics is implemented") \ | |
1679 \ | |
1680 product(bool, CMSParallelRemarkEnabled, true, \ | |
1681 "Whether parallel remark enabled (only if ParNewGC)") \ | |
1682 \ | |
1683 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
1684 "Whether parallel remark of survivor space" \ | |
1685 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
1686 \ | |
1687 product(bool, CMSPLABRecordAlways, true, \ | |
1688 "Whether to always record survivor space PLAB bdries" \ | |
1689 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
1690 \ | |
1691 product(bool, CMSConcurrentMTEnabled, true, \ | |
1692 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
1693 \ | |
1694 product(bool, CMSPrecleaningEnabled, true, \ | |
1695 "Whether concurrent precleaning enabled") \ | |
1696 \ | |
1697 product(uintx, CMSPrecleanIter, 3, \ | |
1698 "Maximum number of precleaning iteration passes") \ | |
1699 \ | |
1700 product(uintx, CMSPrecleanNumerator, 2, \ | |
1701 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1702 " ratio") \ | |
1703 \ | |
1704 product(uintx, CMSPrecleanDenominator, 3, \ | |
1705 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1706 " ratio") \ | |
1707 \ | |
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1708 product(bool, CMSPrecleanRefLists1, true, \ |
0 | 1709 "Preclean ref lists during (initial) preclean phase") \ |
1710 \ | |
1711 product(bool, CMSPrecleanRefLists2, false, \ | |
1712 "Preclean ref lists during abortable preclean phase") \ | |
1713 \ | |
1714 product(bool, CMSPrecleanSurvivors1, false, \ | |
1715 "Preclean survivors during (initial) preclean phase") \ | |
1716 \ | |
1717 product(bool, CMSPrecleanSurvivors2, true, \ | |
1718 "Preclean survivors during abortable preclean phase") \ | |
1719 \ | |
1720 product(uintx, CMSPrecleanThreshold, 1000, \ | |
1721 "Don't re-iterate if #dirty cards less than this") \ | |
1722 \ | |
1723 product(bool, CMSCleanOnEnter, true, \ | |
1724 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
1725 \ | |
1726 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
1727 "Choose variant (1,2) of verification following remark") \ | |
1728 \ | |
1729 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
1730 "If Eden used is below this value, don't try to schedule remark") \ | |
1731 \ | |
1732 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
1733 "The Eden occupancy % at which to try and schedule remark pause") \ | |
1734 \ | |
1735 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
1736 "Start sampling Eden top at least before yg occupancy reaches" \ | |
1737 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
1738 \ | |
1739 product(uintx, CMSSamplingGrain, 16*K, \ | |
1740 "The minimum distance between eden samples for CMS (see above)") \ | |
1741 \ | |
1742 product(bool, CMSScavengeBeforeRemark, false, \ | |
1743 "Attempt scavenge before the CMS remark step") \ | |
1744 \ | |
1745 develop(bool, CMSTraceSweeper, false, \ | |
1746 "Trace some actions of the CMS sweeper") \ | |
1747 \ | |
1748 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
1749 "Don't drain below this size per parallel worker/thief") \ | |
1750 \ | |
1887
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1751 manageable(intx, CMSWaitDuration, 2000, \ |
0 | 1752 "Time in milliseconds that CMS thread waits for young GC") \ |
1753 \ | |
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1754 develop(uintx, CMSCheckInterval, 1000, \ |
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1755 "Interval in milliseconds that CMS thread checks if it " \ |
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1756 "should start a collection cycle") \ |
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1757 \ |
0 | 1758 product(bool, CMSYield, true, \ |
1759 "Yield between steps of concurrent mark & sweep") \ | |
1760 \ | |
1761 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
1762 "Bitmap operations should process at most this many bits" \ | |
1763 "between yields") \ | |
1764 \ | |
1145
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1765 product(bool, CMSDumpAtPromotionFailure, false, \ |
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1766 "Dump useful information about the state of the CMS old " \ |
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|
1767 " generation upon a promotion failure.") \ |
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|
1768 \ |
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1769 product(bool, CMSPrintChunksInDump, false, \ |
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|
1770 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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|
1771 " more detailed information about the free chunks.") \ |
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|
1772 \ |
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1773 product(bool, CMSPrintObjectsInDump, false, \ |
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|
1774 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1775 " more detailed information about the allocated objects.") \ |
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|
1776 \ |
0 | 1777 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
1778 "Verify that all refs across the FLS boundary " \ | |
1779 " are to valid objects") \ | |
1780 \ | |
1781 diagnostic(bool, FLSVerifyLists, false, \ | |
1782 "Do lots of (expensive) FreeListSpace verification") \ | |
1783 \ | |
1784 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
1785 "Do lots of (expensive) FLS index table verification") \ | |
1786 \ | |
1787 develop(bool, FLSVerifyDictionary, false, \ | |
1788 "Do lots of (expensive) FLS dictionary verification") \ | |
1789 \ | |
1790 develop(bool, VerifyBlockOffsetArray, false, \ | |
1791 "Do (expensive!) block offset array verification") \ | |
1792 \ | |
3321
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1793 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
0 | 1794 "Maintain _unallocated_block in BlockOffsetArray" \ |
1795 " (currently applicable only to CMS collector)") \ | |
1796 \ | |
1797 develop(bool, TraceCMSState, false, \ | |
1798 "Trace the state of the CMS collection") \ | |
1799 \ | |
1800 product(intx, RefDiscoveryPolicy, 0, \ | |
1801 "Whether reference-based(0) or referent-based(1)") \ | |
1802 \ | |
1803 product(bool, ParallelRefProcEnabled, false, \ | |
1804 "Enable parallel reference processing whenever possible") \ | |
1805 \ | |
1806 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
1807 "Enable balancing of reference processing queues") \ | |
1808 \ | |
8035 | 1809 product(uintx, CMSTriggerRatio, 80, \ |
0 | 1810 "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
1064 | 1811 "allocated before a CMS collection cycle commences") \ |
0 | 1812 \ |
94
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1813 product(uintx, CMSBootstrapOccupancy, 50, \ |
0 | 1814 "Percentage CMS generation occupancy at which to " \ |
1064 | 1815 "initiate CMS collection for bootstrapping collection stats") \ |
0 | 1816 \ |
1817 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
1818 "Percentage CMS generation occupancy to start a CMS collection " \ | |
1064 | 1819 "cycle. A negative value means that CMSTriggerRatio is used") \ |
94
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1820 \ |
1283
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1821 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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1822 "Percentage of the (entire) heap occupancy to start a " \ |
8034
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1823 "concurrent GC cycle. It is used by GCs that trigger a " \ |
1283
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1824 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1825 "not just one of the generations (e.g., G1). A value of 0 " \ |
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1826 "denotes 'do constant GC cycles'.") \ |
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|
1827 \ |
0 | 1828 product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
1829 "Only use occupancy as a crierion for starting a CMS collection") \ | |
1830 \ | |
94
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1831 product(intx, CMSIsTooFullPercentage, 98, \ |
1064 | 1832 "An absolute ceiling above which CMS will always consider the " \ |
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1833 "unloading of classes when class unloading is enabled") \ |
94
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1834 \ |
0 | 1835 develop(bool, CMSTestInFreeList, false, \ |
1836 "Check if the coalesced range is already in the " \ | |
1064 | 1837 "free lists as claimed") \ |
0 | 1838 \ |
1839 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
1840 "Check that all the garbage collected was returned to the " \ | |
1841 "free lists.") \ | |
1842 \ | |
1843 notproduct(bool, ScavengeALot, false, \ | |
1844 "Force scavenge at every Nth exit from the runtime system " \ | |
1845 "(N=ScavengeALotInterval)") \ | |
1846 \ | |
1847 develop(bool, FullGCALot, false, \ | |
1848 "Force full gc at every Nth exit from the runtime system " \ | |
1849 "(N=FullGCALotInterval)") \ | |
1850 \ | |
1851 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
1852 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
1853 \ | |
1145
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1854 product(bool, PrintPromotionFailure, false, \ |
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1855 "Print additional diagnostic information following " \ |
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1856 " promotion failure") \ |
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1857 \ |
0 | 1858 notproduct(bool, PromotionFailureALot, false, \ |
1859 "Use promotion failure handling on every youngest generation " \ | |
1860 "collection") \ | |
1861 \ | |
1862 develop(uintx, PromotionFailureALotCount, 1000, \ | |
1863 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
1864 "refill attempts (ParNew) or promotion attempts " \ | |
1865 "(other young collectors) ") \ | |
1866 \ | |
1867 develop(uintx, PromotionFailureALotInterval, 5, \ | |
1868 "Total collections between promotion failures alot") \ | |
1869 \ | |
1837
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1870 experimental(intx, WorkStealingSleepMillis, 1, \ |
0 | 1871 "Sleep time when sleep is used for yields") \ |
1872 \ | |
2430 | 1873 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
0 | 1874 "Number of yields before a sleep is done during workstealing") \ |
1875 \ | |
1837
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1876 experimental(uintx, WorkStealingHardSpins, 4096, \ |
546
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1877 "Number of iterations in a spin loop between checks on " \ |
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1878 "time out of hard spin") \ |
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1879 \ |
1837
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1880 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
546
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1881 "Ratio of hard spins to calls to yield") \ |
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1882 \ |
1311
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1883 develop(uintx, ObjArrayMarkingStride, 512, \ |
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1884 "Number of ObjArray elements to push onto the marking stack" \ |
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1885 "before pushing a continuation entry") \ |
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1886 \ |
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1887 develop(bool, MetadataAllocationFailALot, false, \ |
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1888 "Fail metadata allocations at intervals controlled by " \ |
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1889 "MetadataAllocationFailALotInterval") \ |
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1890 \ |
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1891 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ |
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1892 "metadata allocation failure alot interval") \ |
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1893 \ |
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1894 develop(bool, MetaDataDeallocateALot, false, \ |
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1895 "Deallocation bunches of metadata at intervals controlled by " \ |
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1896 "MetaDataAllocateALotInterval") \ |
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1897 \ |
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1898 develop(uintx, MetaDataDeallocateALotInterval, 100, \ |
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1899 "Metadata deallocation alot interval") \ |
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1900 \ |
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1901 develop(bool, TraceMetadataChunkAllocation, false, \ |
7461
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1902 "Trace chunk metadata allocations") \ |
6725
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1903 \ |
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1904 product(bool, TraceMetadataHumongousAllocation, false, \ |
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1905 "Trace humongous metadata allocations") \ |
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1906 \ |
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1907 develop(bool, TraceMetavirtualspaceAllocation, false, \ |
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1908 "Trace virtual space metadata allocations") \ |
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1909 \ |
3779 | 1910 notproduct(bool, ExecuteInternalVMTests, false, \ |
1911 "Enable execution of internal VM tests.") \ | |
1912 \ | |
0 | 1913 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
1914 \ | |
1915 product_pd(bool, ResizeTLAB, \ | |
1916 "Dynamically resize tlab size for threads") \ | |
1917 \ | |
1918 product(bool, ZeroTLAB, false, \ | |
1919 "Zero out the newly created TLAB") \ | |
1920 \ | |
342
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1921 product(bool, FastTLABRefill, true, \ |
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|
1922 "Use fast TLAB refill code") \ |
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1923 \ |
0 | 1924 product(bool, PrintTLAB, false, \ |
1925 "Print various TLAB related information") \ | |
1926 \ | |
1927 product(bool, TLABStats, true, \ | |
1928 "Print various TLAB related information") \ | |
1929 \ | |
2192
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1930 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
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|
1931 "Enable LowMemoryProtection")) \ |
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|
1932 \ |
0 | 1933 product_pd(bool, NeverActAsServerClassMachine, \ |
1934 "Never act like a server-class machine") \ | |
1935 \ | |
1936 product(bool, AlwaysActAsServerClassMachine, false, \ | |
1937 "Always act like a server-class machine") \ | |
1938 \ | |
1064 | 1939 product_pd(uint64_t, MaxRAM, \ |
1940 "Real memory size (in bytes) used to set maximum heap size") \ | |
1941 \ | |
1942 product(uintx, ErgoHeapSizeLimit, 0, \ | |
1943 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
1944 "MaxRAM / MaxRAMFraction") \ | |
1945 \ | |
1946 product(uintx, MaxRAMFraction, 4, \ | |
1947 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
1948 "size") \ | |
0 | 1949 \ |
1950 product(uintx, DefaultMaxRAMFraction, 4, \ | |
1064 | 1951 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
1952 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
1953 \ | |
1954 product(uintx, MinRAMFraction, 2, \ | |
1955 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
1956 "size on systems with small physical memory size") \ | |
1957 \ | |
1958 product(uintx, InitialRAMFraction, 64, \ | |
1959 "Fraction (1/n) of real memory used for initial heap size") \ | |
0 | 1960 \ |
1961 product(bool, UseAutoGCSelectPolicy, false, \ | |
1962 "Use automatic collection selection policy") \ | |
1963 \ | |
1964 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
1965 "Automatic GC selection pause threshhold in ms") \ | |
1966 \ | |
1967 product(bool, UseAdaptiveSizePolicy, true, \ | |
1968 "Use adaptive generation sizing policies") \ | |
1969 \ | |
1970 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
1971 "Use adaptive survivor sizing policies") \ | |
1972 \ | |
1973 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
1974 "Use adaptive young-old sizing policies at minor collections") \ | |
1975 \ | |
1976 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
1977 "Use adaptive young-old sizing policies at major collections") \ | |
1978 \ | |
1979 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
1980 "Use statistics from System.GC for adaptive size policy") \ | |
1981 \ | |
1982 product(bool, UseAdaptiveGCBoundary, false, \ | |
1983 "Allow young-old boundary to move") \ | |
1984 \ | |
1985 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
1986 "Trace young-old boundary moves") \ | |
1987 \ | |
1988 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
1989 "Resize the virtual spaces of the young or old generations") \ | |
1990 \ | |
1991 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
1992 "Policy for changeing generation size for throughput goals") \ | |
1993 \ | |
1994 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
1995 "Policy for changing generation size for pause goals") \ | |
1996 \ | |
1997 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
1998 "Adjust tenured generation to achive a minor pause goal") \ | |
1999 \ | |
2000 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
2001 "Adjust young generation to achive a major pause goal") \ | |
2002 \ | |
2003 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
2004 "Number of steps where heuristics is used before data is used") \ | |
2005 \ | |
2006 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
2007 "Number of collections before the adaptive sizing is started") \ | |
2008 \ | |
2009 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
1064 | 2010 "Collecton interval for printing information; zero => never") \ |
0 | 2011 \ |
2012 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
2013 "Use adaptive minimum footprint as a goal") \ | |
2014 \ | |
2015 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
2016 "Weight given to exponential resizing, between 0 and 100") \ | |
2017 \ | |
2018 product(uintx, AdaptiveTimeWeight, 25, \ | |
2019 "Weight given to time in adaptive policy, between 0 and 100") \ | |
2020 \ | |
2021 product(uintx, PausePadding, 1, \ | |
2022 "How much buffer to keep for pause time") \ | |
2023 \ | |
2024 product(uintx, PromotedPadding, 3, \ | |
2025 "How much buffer to keep for promotion failure") \ | |
2026 \ | |
2027 product(uintx, SurvivorPadding, 3, \ | |
2028 "How much buffer to keep for survivor overflow") \ | |
2029 \ | |
2030 product(uintx, ThresholdTolerance, 10, \ | |
2031 "Allowed collection cost difference between generations") \ | |
2032 \ | |
2033 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
1064 | 2034 "If collection costs are within margin, reduce both by full " \ |
2035 "delta") \ | |
0 | 2036 \ |
2037 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
2038 "Adaptive size percentage change in young generation") \ | |
2039 \ | |
2040 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
2041 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
2042 \ | |
2043 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
2044 "Decay factor to YoungedGenerationSizeSupplement") \ | |
2045 \ | |
2046 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
2047 "Adaptive size percentage change in tenured generation") \ | |
2048 \ | |
2049 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
2050 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
2051 \ | |
2052 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
2053 "Decay factor to TenuredGenerationSizeIncrement") \ | |
2054 \ | |
6818 | 2055 product(uintx, MaxGCPauseMillis, max_uintx, \ |
751 | 2056 "Adaptive size policy maximum GC pause time goal in msec, " \ |
2057 "or (G1 Only) the max. GC time per MMU time slice") \ | |
2058 \ | |
1610
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2059 product(uintx, GCPauseIntervalMillis, 0, \ |
751 | 2060 "Time slice for MMU specification") \ |
0 | 2061 \ |
2062 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
2063 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
2064 \ | |
2065 product(uintx, GCTimeRatio, 99, \ | |
2066 "Adaptive size policy application time to GC time ratio") \ | |
2067 \ | |
2068 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
2069 "Adaptive size scale down factor for shrinking") \ | |
2070 \ | |
2071 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
2072 "Adaptive size decays the major cost for long major intervals") \ | |
2073 \ | |
2074 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
2075 "Time scale over which major costs decay") \ | |
2076 \ | |
2077 product(uintx, MinSurvivorRatio, 3, \ | |
2078 "Minimum ratio of young generation/survivor space size") \ | |
2079 \ | |
2080 product(uintx, InitialSurvivorRatio, 8, \ | |
2081 "Initial ratio of eden/survivor space size") \ | |
2082 \ | |
2083 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
2084 "Estimate of footprint other than Java Heap") \ | |
2085 \ | |
2086 product(bool, UseGCOverheadLimit, true, \ | |
2087 "Use policy to limit of proportion of time spent in GC " \ | |
2088 "before an OutOfMemory error is thrown") \ | |
2089 \ | |
2090 product(uintx, GCTimeLimit, 98, \ | |
2091 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
2092 "error is thrown (used with GCHeapFreeLimit)") \ | |
2093 \ | |
2094 product(uintx, GCHeapFreeLimit, 2, \ | |
2095 "Minimum percentage of free space after a full GC before an " \ | |
2096 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
2097 \ | |
2098 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
2099 "Number of consecutive collections before gc time limit fires") \ | |
2100 \ | |
2101 product(bool, PrintAdaptiveSizePolicy, false, \ | |
2102 "Print information about AdaptiveSizePolicy") \ | |
2103 \ | |
2104 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
2105 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
2106 \ | |
2107 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
2108 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
2109 \ | |
2110 product(intx, PrefetchFieldsAhead, -1, \ | |
2111 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
2112 \ | |
2113 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ | |
2114 "Verify system before exiting") \ | |
2115 \ | |
2116 diagnostic(bool, VerifyBeforeGC, false, \ | |
2117 "Verify memory system before GC") \ | |
2118 \ | |
2119 diagnostic(bool, VerifyAfterGC, false, \ | |
2120 "Verify memory system after GC") \ | |
2121 \ | |
2122 diagnostic(bool, VerifyDuringGC, false, \ | |
2123 "Verify memory system during GC (between phases)") \ | |
2124 \ | |
390 | 2125 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
2126 "Enable parallel memory system verification") \ | |
2127 \ | |
1166 | 2128 diagnostic(bool, DeferInitialCardMark, false, \ |
2129 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
2130 "may arise from new_pre_store_barrier") \ | |
2131 \ | |
0 | 2132 diagnostic(bool, VerifyRememberedSets, false, \ |
2133 "Verify GC remembered sets") \ | |
2134 \ | |
2135 diagnostic(bool, VerifyObjectStartArray, true, \ | |
2136 "Verify GC object start array if verify before/after") \ | |
2137 \ | |
2138 product(bool, DisableExplicitGC, false, \ | |
2139 "Tells whether calling System.gc() does a full GC") \ | |
2140 \ | |
2141 notproduct(bool, CheckMemoryInitialization, false, \ | |
2142 "Checks memory initialization") \ | |
2143 \ | |
2144 product(bool, CollectGen0First, false, \ | |
2145 "Collect youngest generation before each full GC") \ | |
2146 \ | |
2147 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
2148 "Bind CMS Thread to CPU if possible") \ | |
2149 \ | |
2150 diagnostic(uintx, CPUForCMSThread, 0, \ | |
2151 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
2152 \ | |
2153 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
2154 "Bind GCTaskThreads to CPUs if possible") \ | |
2155 \ | |
2156 product(bool, UseGCTaskAffinity, false, \ | |
2157 "Use worker affinity when asking for GCTasks") \ | |
2158 \ | |
2159 product(uintx, ProcessDistributionStride, 4, \ | |
2160 "Stride through processors when distributing processes") \ | |
2161 \ | |
2162 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
2163 "number of times the coordinator GC thread will sleep while " \ | |
2164 "yielding before giving up and resuming GC") \ | |
2165 \ | |
2166 product(uintx, CMSYieldSleepCount, 0, \ | |
2167 "number of times a GC thread (minus the coordinator) " \ | |
2168 "will sleep while yielding before giving up and resuming GC") \ | |
2169 \ | |
2170 /* gc tracing */ \ | |
2171 manageable(bool, PrintGC, false, \ | |
2172 "Print message at garbage collect") \ | |
2173 \ | |
2174 manageable(bool, PrintGCDetails, false, \ | |
2175 "Print more details at garbage collect") \ | |
2176 \ | |
2177 manageable(bool, PrintGCDateStamps, false, \ | |
2178 "Print date stamps at garbage collect") \ | |
2179 \ | |
2180 manageable(bool, PrintGCTimeStamps, false, \ | |
2181 "Print timestamps at garbage collect") \ | |
2182 \ | |
2183 product(bool, PrintGCTaskTimeStamps, false, \ | |
2184 "Print timestamps for individual gc worker thread tasks") \ | |
2185 \ | |
2186 develop(intx, ConcGCYieldTimeout, 0, \ | |
2187 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
2188 \ | |
2189 notproduct(bool, TraceMarkSweep, false, \ | |
2190 "Trace mark sweep") \ | |
2191 \ | |
2192 product(bool, PrintReferenceGC, false, \ | |
2193 "Print times spent handling reference objects during GC " \ | |
2194 " (enabled only when PrintGCDetails)") \ | |
2195 \ | |
2196 develop(bool, TraceReferenceGC, false, \ | |
2197 "Trace handling of soft/weak/final/phantom references") \ | |
2198 \ | |
2199 develop(bool, TraceFinalizerRegistration, false, \ | |
2200 "Trace registration of final references") \ | |
2201 \ | |
2202 notproduct(bool, TraceScavenge, false, \ | |
2203 "Trace scavenge") \ | |
2204 \ | |
2205 product_rw(bool, TraceClassLoading, false, \ | |
2206 "Trace all classes loaded") \ | |
2207 \ | |
2208 product(bool, TraceClassLoadingPreorder, false, \ | |
2209 "Trace all classes loaded in order referenced (not loaded)") \ | |
2210 \ | |
2211 product_rw(bool, TraceClassUnloading, false, \ | |
2212 "Trace unloading of classes") \ | |
2213 \ | |
2214 product_rw(bool, TraceLoaderConstraints, false, \ | |
2215 "Trace loader constraints") \ | |
2216 \ | |
6725
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|
2217 develop(bool, TraceClassLoaderData, false, \ |
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|
2218 "Trace class loader loader_data lifetime") \ |
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|
2219 \ |
7446
e51c9860cf66
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
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|
2220 product(uintx, InitialBootClassLoaderMetaspaceSize, \ |
e51c9860cf66
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|
2221 NOT_LP64(2200*K) LP64_ONLY(4*M), \ |
6725
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2222 "Initial size of the boot class loader data metaspace") \ |
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|
2223 \ |
0 | 2224 product(bool, TraceGen0Time, false, \ |
2225 "Trace accumulated time for Gen 0 collection") \ | |
2226 \ | |
2227 product(bool, TraceGen1Time, false, \ | |
2228 "Trace accumulated time for Gen 1 collection") \ | |
2229 \ | |
2230 product(bool, PrintTenuringDistribution, false, \ | |
2231 "Print tenuring age information") \ | |
2232 \ | |
2233 product_rw(bool, PrintHeapAtGC, false, \ | |
2234 "Print heap layout before and after each GC") \ | |
2235 \ | |
838
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2236 product_rw(bool, PrintHeapAtGCExtended, false, \ |
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|
2237 "Prints extended information about the layout of the heap " \ |
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|
2238 "when -XX:+PrintHeapAtGC is set") \ |
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|
2239 \ |
0 | 2240 product(bool, PrintHeapAtSIGBREAK, true, \ |
2241 "Print heap layout in response to SIGBREAK") \ | |
2242 \ | |
615
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diff
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|
2243 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
c6c601a0f2d6
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|
2244 "Print a class histogram before any major stop-world GC") \ |
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|
2245 \ |
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|
2246 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
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|
2247 "Print a class histogram after any major stop-world GC") \ |
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|
2248 \ |
0 | 2249 manageable(bool, PrintClassHistogram, false, \ |
2250 "Print a histogram of class instances") \ | |
2251 \ | |
2252 develop(bool, TraceWorkGang, false, \ | |
2253 "Trace activities of work gangs") \ | |
2254 \ | |
2255 product(bool, TraceParallelOldGCTasks, false, \ | |
2256 "Trace multithreaded GC activity") \ | |
2257 \ | |
2258 develop(bool, TraceBlockOffsetTable, false, \ | |
2259 "Print BlockOffsetTable maps") \ | |
2260 \ | |
2261 develop(bool, TraceCardTableModRefBS, false, \ | |
2262 "Print CardTableModRefBS maps") \ | |
2263 \ | |
2264 develop(bool, TraceGCTaskManager, false, \ | |
2265 "Trace actions of the GC task manager") \ | |
2266 \ | |
2267 develop(bool, TraceGCTaskQueue, false, \ | |
2268 "Trace actions of the GC task queues") \ | |
2269 \ | |
6818 | 2270 diagnostic(bool, TraceGCTaskThread, false, \ |
0 | 2271 "Trace actions of the GC task threads") \ |
2272 \ | |
2273 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
2274 "Print the time taken by each parallel old gc phase." \ | |
2275 "PrintGCDetails must also be enabled.") \ | |
2276 \ | |
2277 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
2278 "Trace parallel old gc marking phase") \ | |
2279 \ | |
2280 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
2281 "Trace parallel old gc summary phase") \ | |
2282 \ | |
2283 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
2284 "Trace parallel old gc compaction phase") \ | |
2285 \ | |
2286 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
2287 "Trace parallel old gc dense prefix computation") \ | |
2288 \ | |
2289 develop(bool, IgnoreLibthreadGPFault, false, \ | |
2290 "Suppress workaround for libthread GP fault") \ | |
2291 \ | |
139
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|
2292 product(bool, PrintJNIGCStalls, false, \ |
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|
2293 "Print diagnostic message when GC is stalled" \ |
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|
2294 "by JNI critical section") \ |
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|
2295 \ |
3767
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|
2296 /* GC log rotation setting */ \ |
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|
2297 \ |
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|
2298 product(bool, UseGCLogFileRotation, false, \ |
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|
2299 "Prevent large gclog file for long running app. " \ |
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2300 "Requires -Xloggc:<filename>") \ |
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|
2301 \ |
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2302 product(uintx, NumberOfGCLogFiles, 0, \ |
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2303 "Number of gclog files in rotation, " \ |
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|
2304 "Default: 0, no rotation") \ |
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|
2305 \ |
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|
2306 product(uintx, GCLogFileSize, 0, \ |
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2307 "GC log file size, Default: 0 bytes, no rotation " \ |
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2308 "Only valid with UseGCLogFileRotation") \ |
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2309 \ |
0 | 2310 /* JVMTI heap profiling */ \ |
2311 \ | |
2312 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
2313 "Trace JVMTI object tagging calls") \ | |
2314 \ | |
2315 diagnostic(bool, VerifyBeforeIteration, false, \ | |
2316 "Verify memory system before JVMTI iteration") \ | |
2317 \ | |
2318 /* compiler interface */ \ | |
2319 \ | |
2320 develop(bool, CIPrintCompilerName, false, \ | |
2321 "when CIPrint is active, print the name of the active compiler") \ | |
2322 \ | |
2323 develop(bool, CIPrintCompileQueue, false, \ | |
2324 "display the contents of the compile queue whenever a " \ | |
2325 "compilation is enqueued") \ | |
2326 \ | |
2327 develop(bool, CIPrintRequests, false, \ | |
2328 "display every request for compilation") \ | |
2329 \ | |
2330 product(bool, CITime, false, \ | |
2331 "collect timing information for compilation") \ | |
2332 \ | |
2333 develop(bool, CITimeEach, false, \ | |
2334 "display timing information after each successful compilation") \ | |
2335 \ | |
6843 | 2336 develop(bool, CICountOSR, false, \ |
0 | 2337 "use a separate counter when assigning ids to osr compilations") \ |
2338 \ | |
2339 develop(bool, CICompileNatives, true, \ | |
2340 "compile native methods if supported by the compiler") \ | |
2341 \ | |
2342 develop_pd(bool, CICompileOSR, \ | |
2343 "compile on stack replacement methods if supported by the " \ | |
2344 "compiler") \ | |
2345 \ | |
2346 develop(bool, CIPrintMethodCodes, false, \ | |
2347 "print method bytecodes of the compiled code") \ | |
2348 \ | |
2349 develop(bool, CIPrintTypeFlow, false, \ | |
2350 "print the results of ciTypeFlow analysis") \ | |
2351 \ | |
2352 develop(bool, CITraceTypeFlow, false, \ | |
2353 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
2354 \ | |
2403 | 2355 develop(intx, OSROnlyBCI, -1, \ |
2356 "OSR only at this bci. Negative values mean exclude that bci") \ | |
2357 \ | |
0 | 2358 /* compiler */ \ |
2359 \ | |
2360 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
2361 "Number of compiler threads to run") \ | |
2362 \ | |
2363 product(intx, CompilationPolicyChoice, 0, \ | |
2364 "which compilation policy (0/1)") \ | |
2365 \ | |
2366 develop(bool, UseStackBanging, true, \ | |
2367 "use stack banging for stack overflow checks (required for " \ | |
2368 "proper StackOverflow handling; disable only to measure cost " \ | |
2369 "of stackbanging)") \ | |
2370 \ | |
2371 develop(bool, UseStrictFP, true, \ | |
2372 "use strict fp if modifier strictfp is set") \ | |
2373 \ | |
2374 develop(bool, GenerateSynchronizationCode, true, \ | |
2375 "generate locking/unlocking code for synchronized methods and " \ | |
2376 "monitors") \ | |
2377 \ | |
2378 develop(bool, GenerateCompilerNullChecks, true, \ | |
2379 "Generate explicit null checks for loads/stores/calls") \ | |
2380 \ | |
2381 develop(bool, GenerateRangeChecks, true, \ | |
2382 "Generate range checks for array accesses") \ | |
2383 \ | |
2384 develop_pd(bool, ImplicitNullChecks, \ | |
2385 "generate code for implicit null checks") \ | |
2386 \ | |
2387 product(bool, PrintSafepointStatistics, false, \ | |
2388 "print statistics about safepoint synchronization") \ | |
2389 \ | |
2390 product(intx, PrintSafepointStatisticsCount, 300, \ | |
2391 "total number of safepoint statistics collected " \ | |
2392 "before printing them out") \ | |
2393 \ | |
2394 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
2395 "print safepoint statistics only when safepoint takes" \ | |
2396 " more than PrintSafepointSatisticsTimeout in millis") \ | |
2397 \ | |
1321
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2398 product(bool, TraceSafepointCleanupTime, false, \ |
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2399 "print the break down of clean up tasks performed during" \ |
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|
2400 " safepoint") \ |
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2401 \ |
0 | 2402 product(bool, Inline, true, \ |
2403 "enable inlining") \ | |
2404 \ | |
2405 product(bool, ClipInlining, true, \ | |
2406 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
2407 \ | |
2408 develop(bool, UseCHA, true, \ | |
2409 "enable CHA") \ | |
2410 \ | |
2411 product(bool, UseTypeProfile, true, \ | |
2412 "Check interpreter profile for historically monomorphic calls") \ | |
2413 \ | |
2414 notproduct(bool, TimeCompiler, false, \ | |
2415 "time the compiler") \ | |
2416 \ | |
2417 diagnostic(bool, PrintInlining, false, \ | |
2418 "prints inlining optimizations") \ | |
2419 \ | |
643
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2420 product(bool, UsePopCountInstruction, false, \ |
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2421 "Use population count instruction") \ |
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|
2422 \ |
0 | 2423 develop(bool, EagerInitialization, false, \ |
2424 "Eagerly initialize classes if possible") \ | |
2425 \ | |
2426 develop(bool, TraceMethodReplacement, false, \ | |
2427 "Print when methods are replaced do to recompilation") \ | |
2428 \ | |
2429 develop(bool, PrintMethodFlushing, false, \ | |
2430 "print the nmethods being flushed") \ | |
2431 \ | |
2432 develop(bool, UseRelocIndex, false, \ | |
2433 "use an index to speed random access to relocations") \ | |
2434 \ | |
2435 develop(bool, StressCodeBuffers, false, \ | |
2436 "Exercise code buffer expansion and other rare state changes") \ | |
2437 \ | |
2438 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
2439 "Generate extra debugging info for non-safepoints in nmethods") \ | |
2440 \ | |
4066 | 2441 product(bool, PrintVMOptions, false, \ |
1150 | 2442 "Print flags that appeared on the command line") \ |
0 | 2443 \ |
564 | 2444 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
2445 "Ignore unrecognized VM options") \ | |
2446 \ | |
1150 | 2447 product(bool, PrintCommandLineFlags, false, \ |
2448 "Print flags specified on command line or set by ergonomics") \ | |
2449 \ | |
2450 product(bool, PrintFlagsInitial, false, \ | |
2451 "Print all VM flags before argument processing and exit VM") \ | |
2452 \ | |
2453 product(bool, PrintFlagsFinal, false, \ | |
2454 "Print all VM flags after argument and ergonomic processing") \ | |
2455 \ | |
1768
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2456 notproduct(bool, PrintFlagsWithComments, false, \ |
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|
2457 "Print all VM flags with default values and descriptions and exit")\ |
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|
2458 \ |
0 | 2459 diagnostic(bool, SerializeVMOutput, true, \ |
2460 "Use a mutex to serialize output to tty and hotspot.log") \ | |
2461 \ | |
2462 diagnostic(bool, DisplayVMOutput, true, \ | |
2463 "Display all VM output on the tty, independently of LogVMOutput") \ | |
2464 \ | |
2465 diagnostic(bool, LogVMOutput, trueInDebug, \ | |
2466 "Save VM output to hotspot.log, or to LogFile") \ | |
2467 \ | |
2468 diagnostic(ccstr, LogFile, NULL, \ | |
2469 "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ | |
2470 \ | |
2471 product(ccstr, ErrorFile, NULL, \ | |
2472 "If an error occurs, save the error data to this file " \ | |
2473 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
2474 \ | |
2475 product(bool, DisplayVMOutputToStderr, false, \ | |
2476 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
2477 \ | |
2478 product(bool, DisplayVMOutputToStdout, false, \ | |
2479 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
2480 \ | |
2481 product(bool, UseHeavyMonitors, false, \ | |
2482 "use heavyweight instead of lightweight Java monitors") \ | |
2483 \ | |
6162 | 2484 product(bool, PrintStringTableStatistics, false, \ |
2485 "print statistics about the StringTable and SymbolTable") \ | |
2486 \ | |
0 | 2487 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
2488 "print histogram of the symbol table") \ | |
2489 \ | |
2490 notproduct(bool, ExitVMOnVerifyError, false, \ | |
2491 "standard exit from VM if bytecode verify error " \ | |
2492 "(only in debug mode)") \ | |
2493 \ | |
2494 notproduct(ccstr, AbortVMOnException, NULL, \ | |
2495 "Call fatal if this exception is thrown. Example: " \ | |
2496 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
2497 \ | |
1684
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1660
diff
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|
2498 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
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1660
diff
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|
2499 "Call fatal if the exception pointed by AbortVMOnException " \ |
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diff
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|
2500 "has this message.") \ |
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|
2501 \ |
0 | 2502 develop(bool, DebugVtables, false, \ |
2503 "add debugging code to vtable dispatch") \ | |
2504 \ | |
2505 develop(bool, PrintVtables, false, \ | |
2506 "print vtables when printing klass") \ | |
2507 \ | |
2508 notproduct(bool, PrintVtableStats, false, \ | |
2509 "print vtables stats at end of run") \ | |
2510 \ | |
2511 develop(bool, TraceCreateZombies, false, \ | |
2512 "trace creation of zombie nmethods") \ | |
2513 \ | |
2514 notproduct(bool, IgnoreLockingAssertions, false, \ | |
2515 "disable locking assertions (for speed)") \ | |
2516 \ | |
2517 product(bool, RangeCheckElimination, true, \ | |
2518 "Split loop iterations to eliminate range checks") \ | |
2519 \ | |
2520 develop_pd(bool, UncommonNullCast, \ | |
2521 "track occurrences of null in casts; adjust compiler tactics") \ | |
2522 \ | |
2523 develop(bool, TypeProfileCasts, true, \ | |
2524 "treat casts like calls for purposes of type profiling") \ | |
2525 \ | |
2526 develop(bool, DelayCompilationDuringStartup, true, \ | |
2527 "Delay invoking the compiler until main application class is " \ | |
2528 "loaded") \ | |
2529 \ | |
2530 develop(bool, CompileTheWorld, false, \ | |
2531 "Compile all methods in all classes in bootstrap class path " \ | |
2532 "(stress test)") \ | |
2533 \ | |
2534 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
2535 "Preload all classes used by a class before start loading") \ | |
2536 \ | |
1188
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1179
diff
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|
2537 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
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1179
diff
changeset
|
2538 "Force a safepoint every n compiles so sweeper can keep up") \ |
99af867dfa05
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diff
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|
2539 \ |
0 | 2540 develop(bool, FillDelaySlots, true, \ |
2541 "Fill delay slots (on SPARC only)") \ | |
2542 \ | |
2543 develop(bool, TimeLivenessAnalysis, false, \ | |
2544 "Time computation of bytecode liveness analysis") \ | |
2545 \ | |
2546 develop(bool, TraceLivenessGen, false, \ | |
2547 "Trace the generation of liveness analysis information") \ | |
2548 \ | |
2549 notproduct(bool, TraceLivenessQuery, false, \ | |
2550 "Trace queries of liveness analysis information") \ | |
2551 \ | |
2552 notproduct(bool, CollectIndexSetStatistics, false, \ | |
2553 "Collect information about IndexSets") \ | |
2554 \ | |
2555 develop(bool, UseLoopSafepoints, true, \ | |
2556 "Generate Safepoint nodes in every loop") \ | |
2557 \ | |
2558 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
2559 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
2560 "Inline allocations larger than this in doublewords must go slow")\ | |
2561 \ | |
2562 product(bool, AggressiveOpts, false, \ | |
2563 "Enable aggressive optimizations - see arguments.cpp") \ | |
2564 \ | |
192
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|
2565 product(bool, UseStringCache, false, \ |
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diff
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|
2566 "Enable String cache capabilities on String.java") \ |
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|
2567 \ |
0 | 2568 /* statistics */ \ |
2569 develop(bool, CountCompiledCalls, false, \ | |
2570 "counts method invocations") \ | |
2571 \ | |
2572 notproduct(bool, CountRuntimeCalls, false, \ | |
2573 "counts VM runtime calls") \ | |
2574 \ | |
2575 develop(bool, CountJNICalls, false, \ | |
2576 "counts jni method invocations") \ | |
2577 \ | |
2578 notproduct(bool, CountJVMCalls, false, \ | |
2579 "counts jvm method invocations") \ | |
2580 \ | |
2581 notproduct(bool, CountRemovableExceptions, false, \ | |
2582 "count exceptions that could be replaced by branches due to " \ | |
2583 "inlining") \ | |
2584 \ | |
2585 notproduct(bool, ICMissHistogram, false, \ | |
2586 "produce histogram of IC misses") \ | |
2587 \ | |
2588 notproduct(bool, PrintClassStatistics, false, \ | |
2589 "prints class statistics at end of run") \ | |
2590 \ | |
2591 notproduct(bool, PrintMethodStatistics, false, \ | |
2592 "prints method statistics at end of run") \ | |
2593 \ | |
2594 /* interpreter */ \ | |
2595 develop(bool, ClearInterpreterLocals, false, \ | |
2596 "Always clear local variables of interpreter activations upon " \ | |
2597 "entry") \ | |
2598 \ | |
2599 product_pd(bool, RewriteBytecodes, \ | |
2600 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
2601 \ | |
2602 product_pd(bool, RewriteFrequentPairs, \ | |
2603 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
2604 \ | |
100
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diff
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|
2605 diagnostic(bool, PrintInterpreter, false, \ |
0 | 2606 "Prints the generated interpreter code") \ |
2607 \ | |
2608 product(bool, UseInterpreter, true, \ | |
2609 "Use interpreter for non-compiled methods") \ | |
2610 \ | |
2611 develop(bool, UseFastSignatureHandlers, true, \ | |
2612 "Use fast signature handlers for native calls") \ | |
2613 \ | |
2614 product(bool, UseLoopCounter, true, \ | |
2615 "Increment invocation counter on backward branch") \ | |
2616 \ | |
2617 product(bool, UseFastEmptyMethods, true, \ | |
2618 "Use fast method entry code for empty methods") \ | |
2619 \ | |
2620 product(bool, UseFastAccessorMethods, true, \ | |
2621 "Use fast method entry code for accessor methods") \ | |
2622 \ | |
2623 product_pd(bool, UseOnStackReplacement, \ | |
2624 "Use on stack replacement, calls runtime if invoc. counter " \ | |
2625 "overflows in loop") \ | |
2626 \ | |
2627 notproduct(bool, TraceOnStackReplacement, false, \ | |
2628 "Trace on stack replacement") \ | |
2629 \ | |
2630 product_pd(bool, PreferInterpreterNativeStubs, \ | |
2631 "Use always interpreter stubs for native methods invoked via " \ | |
2632 "interpreter") \ | |
2633 \ | |
2634 develop(bool, CountBytecodes, false, \ | |
2635 "Count number of bytecodes executed") \ | |
2636 \ | |
2637 develop(bool, PrintBytecodeHistogram, false, \ | |
2638 "Print histogram of the executed bytecodes") \ | |
2639 \ | |
2640 develop(bool, PrintBytecodePairHistogram, false, \ | |
2641 "Print histogram of the executed bytecode pairs") \ | |
2642 \ | |
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|
2643 diagnostic(bool, PrintSignatureHandlers, false, \ |
0 | 2644 "Print code generated for native method signature handlers") \ |
2645 \ | |
2646 develop(bool, VerifyOops, false, \ | |
2647 "Do plausibility checks for oops") \ | |
2648 \ | |
2649 develop(bool, CheckUnhandledOops, false, \ | |
2650 "Check for unhandled oops in VM code") \ | |
2651 \ | |
2652 develop(bool, VerifyJNIFields, trueInDebug, \ | |
2653 "Verify jfieldIDs for instance fields") \ | |
2654 \ | |
2655 notproduct(bool, VerifyJNIEnvThread, false, \ | |
2656 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
2657 "from JNI") \ | |
2658 \ | |
2659 develop(bool, VerifyFPU, false, \ | |
2660 "Verify FPU state (check for NaN's, etc.)") \ | |
2661 \ | |
2662 develop(bool, VerifyThread, false, \ | |
2663 "Watch the thread register for corruption (SPARC only)") \ | |
2664 \ | |
2665 develop(bool, VerifyActivationFrameSize, false, \ | |
2666 "Verify that activation frame didn't become smaller than its " \ | |
2667 "minimal size") \ | |
2668 \ | |
2669 develop(bool, TraceFrequencyInlining, false, \ | |
2670 "Trace frequency based inlining") \ | |
2671 \ | |
2672 develop_pd(bool, InlineIntrinsics, \ | |
2673 "Inline intrinsics that can be statically resolved") \ | |
2674 \ | |
2675 product_pd(bool, ProfileInterpreter, \ | |
2676 "Profile at the bytecode level during interpretation") \ | |
2677 \ | |
2678 develop_pd(bool, ProfileTraps, \ | |
2679 "Profile deoptimization traps at the bytecode level") \ | |
2680 \ | |
2681 product(intx, ProfileMaturityPercentage, 20, \ | |
2682 "number of method invocations/branches (expressed as % of " \ | |
2683 "CompileThreshold) before using the method's profile") \ | |
2684 \ | |
2685 develop(bool, PrintMethodData, false, \ | |
2686 "Print the results of +ProfileInterpreter at end of run") \ | |
2687 \ | |
2688 develop(bool, VerifyDataPointer, trueInDebug, \ | |
2689 "Verify the method data pointer during interpreter profiling") \ | |
2690 \ | |
2691 develop(bool, VerifyCompiledCode, false, \ | |
2692 "Include miscellaneous runtime verifications in nmethod code; " \ | |
1064 | 2693 "default off because it disturbs nmethod size heuristics") \ |
0 | 2694 \ |
1119
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|
2695 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
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diff
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|
2696 "Manually make GC thread crash then dump java stack trace; " \ |
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|
2697 "Test only") \ |
0 | 2698 \ |
2699 /* compilation */ \ | |
2700 product(bool, UseCompiler, true, \ | |
2701 "use compilation") \ | |
2702 \ | |
2703 develop(bool, TraceCompilationPolicy, false, \ | |
2704 "Trace compilation policy") \ | |
2705 \ | |
2706 develop(bool, TimeCompilationPolicy, false, \ | |
2707 "Time the compilation policy") \ | |
2708 \ | |
2709 product(bool, UseCounterDecay, true, \ | |
2710 "adjust recompilation counters") \ | |
2711 \ | |
2712 develop(intx, CounterHalfLifeTime, 30, \ | |
2713 "half-life time of invocation counters (in secs)") \ | |
2714 \ | |
2715 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
2716 "Min. ms. between invocation of CounterDecay") \ | |
2717 \ | |
2718 product(bool, AlwaysCompileLoopMethods, false, \ | |
2719 "when using recompilation, never interpret methods " \ | |
2720 "containing loops") \ | |
2721 \ | |
2722 product(bool, DontCompileHugeMethods, true, \ | |
2723 "don't compile methods > HugeMethodLimit") \ | |
2724 \ | |
2725 /* Bytecode escape analysis estimation. */ \ | |
2726 product(bool, EstimateArgEscape, true, \ | |
2727 "Analyze bytecodes to estimate escape state of arguments") \ | |
2728 \ | |
2729 product(intx, BCEATraceLevel, 0, \ | |
2730 "How much tracing to do of bytecode escape analysis estimates") \ | |
2731 \ | |
2732 product(intx, MaxBCEAEstimateLevel, 5, \ | |
2733 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
2734 \ | |
2735 product(intx, MaxBCEAEstimateSize, 150, \ | |
2736 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
2737 \ | |
2738 product(intx, AllocatePrefetchStyle, 1, \ | |
2739 "0 = no prefetch, " \ | |
2740 "1 = prefetch instructions for each allocation, " \ | |
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2741 "2 = use TLAB watermark to gate allocation prefetch, " \ |
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2742 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
0 | 2743 \ |
2744 product(intx, AllocatePrefetchDistance, -1, \ | |
2745 "Distance to prefetch ahead of allocation pointer") \ | |
2746 \ | |
3854 | 2747 product(intx, AllocatePrefetchLines, 3, \ |
2748 "Number of lines to prefetch ahead of array allocation pointer") \ | |
2749 \ | |
2750 product(intx, AllocateInstancePrefetchLines, 1, \ | |
2751 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
0 | 2752 \ |
2753 product(intx, AllocatePrefetchStepSize, 16, \ | |
2754 "Step size in bytes of sequential prefetch instructions") \ | |
2755 \ | |
2756 product(intx, AllocatePrefetchInstr, 0, \ | |
2757 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
2758 \ | |
2759 /* deoptimization */ \ | |
2760 develop(bool, TraceDeoptimization, false, \ | |
2761 "Trace deoptimization") \ | |
2762 \ | |
2763 develop(bool, DebugDeoptimization, false, \ | |
2764 "Tracing various information while debugging deoptimization") \ | |
2765 \ | |
2766 product(intx, SelfDestructTimer, 0, \ | |
2767 "Will cause VM to terminate after a given time (in minutes) " \ | |
2768 "(0 means off)") \ | |
2769 \ | |
2770 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
2771 "Max. no. of lines in the stack trace for Java exceptions " \ | |
2772 "(0 means all)") \ | |
2773 \ | |
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
2774 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
0 | 2775 "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
|
2776 "(0 means none)")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2777 \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2778 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2779 "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
|
2780 "(0 means none)")) \ |
0 | 2781 \ |
2782 product(intx, SafepointTimeoutDelay, 10000, \ | |
2783 "Delay in milliseconds for option SafepointTimeout") \ | |
2784 \ | |
6818 | 2785 product(intx, NmethodSweepFraction, 16, \ |
0 | 2786 "Number of invocations of sweeper to cover all nmethods") \ |
2787 \ | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2788 product(intx, NmethodSweepCheckInterval, 5, \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2789 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2790 \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2791 notproduct(bool, LogSweeper, false, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2792 "Keep a ring buffer of sweeper activity") \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2793 \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2794 notproduct(intx, SweeperLogEntries, 1024, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2795 "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
|
2796 \ |
0 | 2797 notproduct(intx, MemProfilingInterval, 500, \ |
2798 "Time between each invocation of the MemProfiler") \ | |
2799 \ | |
2800 develop(intx, MallocCatchPtr, -1, \ | |
2801 "Hit breakpoint when mallocing/freeing this pointer") \ | |
2802 \ | |
2803 notproduct(intx, AssertRepeat, 1, \ | |
2804 "number of times to evaluate expression in assert " \ | |
2805 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
2806 \ | |
2807 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
2808 "List of assertions (file:line) to muzzle") \ | |
2809 \ | |
2810 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
2811 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
2812 "is used") \ | |
2813 \ | |
2814 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
2815 "Threshold for total handle allocation when " \ | |
2816 "+TraceHandleAllocation is used") \ | |
2817 \ | |
2818 develop(intx, StackPrintLimit, 100, \ | |
2819 "number of stack frames to print in VM-level stack dump") \ | |
2820 \ | |
2821 notproduct(intx, MaxElementPrintSize, 256, \ | |
2822 "maximum number of elements to print") \ | |
2823 \ | |
2824 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
2825 "maximum number of subklasses to print when printing klass") \ | |
2826 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2827 product(intx, MaxInlineLevel, 9, \ |
0 | 2828 "maximum number of nested calls that are inlined") \ |
2829 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2830 product(intx, MaxRecursiveInlineLevel, 1, \ |
0 | 2831 "maximum number of nested recursive calls that are inlined") \ |
2832 \ | |
675 | 2833 product_pd(intx, InlineSmallCode, \ |
0 | 2834 "Only inline already compiled methods if their code size is " \ |
2835 "less than this") \ | |
2836 \ | |
2837 product(intx, MaxInlineSize, 35, \ | |
2838 "maximum bytecode size of a method to be inlined") \ | |
2839 \ | |
2840 product_pd(intx, FreqInlineSize, \ | |
2841 "maximum bytecode size of a frequent method to be inlined") \ | |
2842 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2843 product(intx, MaxTrivialSize, 6, \ |
0 | 2844 "maximum bytecode size of a trivial method to be inlined") \ |
2845 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2846 product(intx, MinInliningThreshold, 250, \ |
0 | 2847 "min. invocation count a method needs to have to be inlined") \ |
2848 \ | |
2849 develop(intx, MethodHistogramCutoff, 100, \ | |
2850 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
2851 \ | |
2852 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
2853 "# of interpreted methods to show in profile") \ | |
2854 \ | |
2855 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
2856 "# of compiled methods to show in profile") \ | |
2857 \ | |
2858 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
2859 "# of stub methods to show in profile") \ | |
2860 \ | |
2861 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
2862 "# of runtime stub nodes to show in profile") \ | |
2863 \ | |
2864 product(intx, ProfileIntervalsTicks, 100, \ | |
2865 "# of ticks between printing of interval profile " \ | |
2866 "(+ProfileIntervals)") \ | |
2867 \ | |
2868 notproduct(intx, ScavengeALotInterval, 1, \ | |
2869 "Interval between which scavenge will occur with +ScavengeALot") \ | |
2870 \ | |
2871 notproduct(intx, FullGCALotInterval, 1, \ | |
2872 "Interval between which full gc will occur with +FullGCALot") \ | |
2873 \ | |
2874 notproduct(intx, FullGCALotStart, 0, \ | |
2875 "For which invocation to start FullGCAlot") \ | |
2876 \ | |
2877 notproduct(intx, FullGCALotDummies, 32*K, \ | |
2878 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
2879 "to move") \ | |
2880 \ | |
2881 develop(intx, DontYieldALotInterval, 10, \ | |
2882 "Interval between which yields will be dropped (milliseconds)") \ | |
2883 \ | |
2884 develop(intx, MinSleepInterval, 1, \ | |
2885 "Minimum sleep() interval (milliseconds) when " \ | |
2886 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
2887 \ | |
2888 develop(intx, ProfilerPCTickThreshold, 15, \ | |
2889 "Number of ticks in a PC buckets to be a hotspot") \ | |
2890 \ | |
2891 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
2892 "Number of exits until DeoptimizeALot kicks in") \ | |
2893 \ | |
2894 notproduct(intx, ZombieALotInterval, 5, \ | |
2895 "Number of exits until ZombieALot kicks in") \ | |
2896 \ | |
2897 develop(bool, StressNonEntrant, false, \ | |
2898 "Mark nmethods non-entrant at registration") \ | |
2899 \ | |
2900 diagnostic(intx, MallocVerifyInterval, 0, \ | |
2901 "if non-zero, verify C heap after every N calls to " \ | |
2902 "malloc/realloc/free") \ | |
2903 \ | |
2904 diagnostic(intx, MallocVerifyStart, 0, \ | |
2905 "if non-zero, start verifying C heap after Nth call to " \ | |
2906 "malloc/realloc/free") \ | |
2907 \ | |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2908 diagnostic(uintx, MallocMaxTestWords, 0, \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2909 "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
|
2910 "(for testing only)") \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2911 \ |
6818 | 2912 product(intx, TypeProfileWidth, 2, \ |
0 | 2913 "number of receiver types to record in call/cast profile") \ |
2914 \ | |
2915 develop(intx, BciProfileWidth, 2, \ | |
2916 "number of return bci's to record in ret profile") \ | |
2917 \ | |
2918 product(intx, PerMethodRecompilationCutoff, 400, \ | |
2919 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
2920 \ | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
2921 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
0 | 2922 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
2923 \ | |
2924 product(intx, PerMethodTrapLimit, 100, \ | |
2925 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
2926 \ | |
2927 product(intx, PerBytecodeTrapLimit, 4, \ | |
2928 "Limit on traps (of one kind) at a particular BCI") \ | |
2929 \ | |
2930 develop(intx, InlineFrequencyRatio, 20, \ | |
2931 "Ratio of call site execution to caller method invocation") \ | |
2932 \ | |
2933 develop_pd(intx, InlineFrequencyCount, \ | |
2934 "Count of call site execution necessary to trigger frequent " \ | |
2935 "inlining") \ | |
2936 \ | |
2937 develop(intx, InlineThrowCount, 50, \ | |
2938 "Force inlining of interpreted methods that throw this often") \ | |
2939 \ | |
2940 develop(intx, InlineThrowMaxSize, 200, \ | |
2941 "Force inlining of throwing methods smaller than this") \ | |
2942 \ | |
2943 develop(intx, ProfilerNodeSize, 1024, \ | |
2944 "Size in K to allocate for the Profile Nodes of each thread") \ | |
2945 \ | |
2946 product_pd(intx, PreInflateSpin, \ | |
2947 "Number of times to spin wait before inflation") \ | |
2948 \ | |
2949 /* gc parameters */ \ | |
1064 | 2950 product(uintx, InitialHeapSize, 0, \ |
2951 "Initial heap size (in bytes); zero means OldSize + NewSize") \ | |
2952 \ | |
2953 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
2954 "Maximum heap size (in bytes)") \ | |
2955 \ | |
2956 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
2957 "Initial tenured generation size (in bytes)") \ | |
2958 \ | |
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
2959 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
1064 | 2960 "Initial new generation size (in bytes)") \ |
0 | 2961 \ |
2962 product(uintx, MaxNewSize, max_uintx, \ | |
1064 | 2963 "Maximum new generation size (in bytes), max_uintx means set " \ |
2964 "ergonomically") \ | |
0 | 2965 \ |
2966 product(uintx, PretenureSizeThreshold, 0, \ | |
1064 | 2967 "Maximum size in bytes of objects allocated in DefNew " \ |
2968 "generation; zero means no maximum") \ | |
2969 \ | |
2970 product(uintx, TLABSize, 0, \ | |
2971 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
0 | 2972 \ |
2973 product(uintx, MinTLABSize, 2*K, \ | |
2974 "Minimum allowed TLAB size (in bytes)") \ | |
2975 \ | |
2976 product(uintx, TLABAllocationWeight, 35, \ | |
2977 "Allocation averaging weight") \ | |
2978 \ | |
2979 product(uintx, TLABWasteTargetPercent, 1, \ | |
2980 "Percentage of Eden that can be wasted") \ | |
2981 \ | |
2982 product(uintx, TLABRefillWasteFraction, 64, \ | |
2983 "Max TLAB waste at a refill (internal fragmentation)") \ | |
2984 \ | |
2985 product(uintx, TLABWasteIncrement, 4, \ | |
2986 "Increment allowed waste at slow allocation") \ | |
2987 \ | |
8035 | 2988 product(uintx, SurvivorRatio, 8, \ |
0 | 2989 "Ratio of eden/survivor space size") \ |
2990 \ | |
8035 | 2991 product(uintx, NewRatio, 2, \ |
0 | 2992 "Ratio of new/old generation sizes") \ |
2993 \ | |
2994 product_pd(uintx, NewSizeThreadIncrease, \ | |
2995 "Additional size added to desired new generation size per " \ | |
2996 "non-daemon thread (in bytes)") \ | |
2997 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
2998 product_pd(uintx, MetaspaceSize, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
2999 "Initial size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3000 \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3001 product(uintx, MaxMetaspaceSize, max_uintx, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3002 "Maximum size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3003 \ |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
3004 product(uintx, ClassMetaspaceSize, 2*M, \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3005 "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
|
3006 "UseCompressedKlassPointers") \ |
0 | 3007 \ |
3008 product(uintx, MinHeapFreeRatio, 40, \ | |
3009 "Min percentage of heap free after GC to avoid expansion") \ | |
3010 \ | |
3011 product(uintx, MaxHeapFreeRatio, 70, \ | |
3012 "Max percentage of heap free after GC to avoid shrinking") \ | |
3013 \ | |
3014 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
3015 "Number of milliseconds per MB of free space in the heap") \ | |
3016 \ | |
3017 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
3018 "Min change in heap space due to GC (in bytes)") \ | |
3019 \ | |
6818 | 3020 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3021 "Min expansion of Metaspace (in bytes)") \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3022 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3023 product(uintx, MinMetaspaceFreeRatio, 40, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3024 "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
|
3025 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3026 product(uintx, MaxMetaspaceFreeRatio, 70, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3027 "Max percentage of Metaspace free after GC to avoid shrinking") \ |
0 | 3028 \ |
6818 | 3029 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3030 "Max expansion of Metaspace without full GC (in bytes)") \ |
0 | 3031 \ |
3032 product(intx, QueuedAllocationWarningCount, 0, \ | |
3033 "Number of times an allocation that queues behind a GC " \ | |
3034 "will retry before printing a warning") \ | |
3035 \ | |
3036 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
3037 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
3038 \ | |
3039 diagnostic(intx, VerifyGCLevel, 0, \ | |
3040 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
3041 \ | |
6818 | 3042 product(uintx, MaxTenuringThreshold, 15, \ |
0 | 3043 "Maximum value for tenuring threshold") \ |
3044 \ | |
6818 | 3045 product(uintx, InitialTenuringThreshold, 7, \ |
0 | 3046 "Initial value for tenuring threshold") \ |
3047 \ | |
8035 | 3048 product(uintx, TargetSurvivorRatio, 50, \ |
0 | 3049 "Desired percentage of survivor space used after scavenge") \ |
3050 \ | |
438 | 3051 product(uintx, MarkSweepDeadRatio, 5, \ |
0 | 3052 "Percentage (0-100) of the old gen allowed as dead wood." \ |
3053 "Serial mark sweep treats this as both the min and max value." \ | |
3054 "CMS uses this value only if it falls back to mark sweep." \ | |
3055 "Par compact uses a variable scale based on the density of the" \ | |
3056 "generation and treats this as the max value when the heap is" \ | |
3057 "either completely full or completely empty. Par compact also" \ | |
3058 "has a smaller default value; see arguments.cpp.") \ | |
3059 \ | |
3060 product(intx, MarkSweepAlwaysCompactCount, 4, \ | |
3061 "How often should we fully compact the heap (ignoring the dead " \ | |
3062 "space parameters)") \ | |
3063 \ | |
3064 product(intx, PrintCMSStatistics, 0, \ | |
3065 "Statistics for CMS") \ | |
3066 \ | |
3067 product(bool, PrintCMSInitiationStatistics, false, \ | |
3068 "Statistics for initiating a CMS collection") \ | |
3069 \ | |
3070 product(intx, PrintFLSStatistics, 0, \ | |
3071 "Statistics for CMS' FreeListSpace") \ | |
3072 \ | |
3073 product(intx, PrintFLSCensus, 0, \ | |
3074 "Census for CMS' FreeListSpace") \ | |
3075 \ | |
3076 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
3077 "Delay in ms between expansion and allocation") \ | |
3078 \ | |
6817 | 3079 develop(uintx, GCWorkerDelayMillis, 0, \ |
3080 "Delay in ms in scheduling GC workers") \ | |
3081 \ | |
0 | 3082 product(intx, DeferThrSuspendLoopCount, 4000, \ |
3083 "(Unstable) Number of times to iterate in safepoint loop " \ | |
3084 " before blocking VM threads ") \ | |
3085 \ | |
3086 product(intx, DeferPollingPageLoopCount, -1, \ | |
3087 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
3088 "before changing safepoint polling page to RO ") \ | |
3089 \ | |
3090 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
3091 \ | |
3092 product(bool, PSChunkLargeArrays, true, \ | |
3093 "true: process large arrays in chunks") \ | |
3094 \ | |
3095 product(uintx, GCDrainStackTargetSize, 64, \ | |
3096 "how many entries we'll try to leave on the stack during " \ | |
3097 "parallel GC") \ | |
3098 \ | |
3099 /* stack parameters */ \ | |
3100 product_pd(intx, StackYellowPages, \ | |
3101 "Number of yellow zone (recoverable overflows) pages") \ | |
3102 \ | |
3103 product_pd(intx, StackRedPages, \ | |
3104 "Number of red zone (unrecoverable overflows) pages") \ | |
3105 \ | |
3106 product_pd(intx, StackShadowPages, \ | |
3107 "Number of shadow zone (for overflow checking) pages" \ | |
3108 " this should exceed the depth of the VM and native call stack") \ | |
3109 \ | |
3110 product_pd(intx, ThreadStackSize, \ | |
3111 "Thread Stack Size (in Kbytes)") \ | |
3112 \ | |
3113 product_pd(intx, VMThreadStackSize, \ | |
3114 "Non-Java Thread Stack Size (in Kbytes)") \ | |
3115 \ | |
3116 product_pd(intx, CompilerThreadStackSize, \ | |
3117 "Compiler Thread Stack Size (in Kbytes)") \ | |
3118 \ | |
3119 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
3120 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
3121 \ | |
3122 product(uintx, ThreadSafetyMargin, 50*M, \ | |
3123 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
3124 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
3125 "disable this feature") \ | |
3126 \ | |
3127 /* code cache parameters */ \ | |
3128 develop(uintx, CodeCacheSegmentSize, 64, \ | |
3129 "Code cache segment size (in bytes) - smallest unit of " \ | |
3130 "allocation") \ | |
3131 \ | |
3132 develop_pd(intx, CodeEntryAlignment, \ | |
3133 "Code entry alignment for generated code (in bytes)") \ | |
3134 \ | |
1365 | 3135 product_pd(intx, OptoLoopAlignment, \ |
3136 "Align inner loops to zero relative to this modulus") \ | |
3137 \ | |
0 | 3138 product_pd(uintx, InitialCodeCacheSize, \ |
3139 "Initial code cache size (in bytes)") \ | |
3140 \ | |
3141 product_pd(uintx, ReservedCodeCacheSize, \ | |
3142 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
3143 \ | |
3144 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
3145 "When less than X space left, we stop compiling.") \ | |
3146 \ | |
3147 product_pd(uintx, CodeCacheExpansionSize, \ | |
3148 "Code cache expansion size (in bytes)") \ | |
3149 \ | |
3150 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
3151 "Minimum number of segments in a code cache block.") \ | |
3152 \ | |
3153 notproduct(bool, ExitOnFullCodeCache, false, \ | |
3154 "Exit the VM if we fill the code cache.") \ | |
3155 \ | |
4039 | 3156 product(bool, UseCodeCacheFlushing, true, \ |
1202 | 3157 "Attempt to clean the code cache before shutting off compiler") \ |
3158 \ | |
3159 product(intx, MinCodeCacheFlushingInterval, 30, \ | |
3160 "Min number of seconds between code cache cleaning sessions") \ | |
3161 \ | |
3162 product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ | |
3163 "When less than X space left, start code cache cleaning") \ | |
3164 \ | |
0 | 3165 /* interpreter debugging */ \ |
3166 develop(intx, BinarySwitchThreshold, 5, \ | |
3167 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
3168 "switch") \ | |
3169 \ | |
3170 develop(intx, StopInterpreterAt, 0, \ | |
3171 "Stops interpreter execution at specified bytecode number") \ | |
3172 \ | |
3173 develop(intx, TraceBytecodesAt, 0, \ | |
3174 "Traces bytecodes starting with specified bytecode number") \ | |
3175 \ | |
3176 /* compiler interface */ \ | |
3177 develop(intx, CIStart, 0, \ | |
3178 "the id of the first compilation to permit") \ | |
3179 \ | |
3180 develop(intx, CIStop, -1, \ | |
3181 "the id of the last compilation to permit") \ | |
3182 \ | |
3183 develop(intx, CIStartOSR, 0, \ | |
3184 "the id of the first osr compilation to permit " \ | |
3185 "(CICountOSR must be on)") \ | |
3186 \ | |
3187 develop(intx, CIStopOSR, -1, \ | |
3188 "the id of the last osr compilation to permit " \ | |
3189 "(CICountOSR must be on)") \ | |
3190 \ | |
3191 develop(intx, CIBreakAtOSR, -1, \ | |
3192 "id of osr compilation to break at") \ | |
3193 \ | |
3194 develop(intx, CIBreakAt, -1, \ | |
3195 "id of compilation to break at") \ | |
3196 \ | |
3197 product(ccstrlist, CompileOnly, "", \ | |
3198 "List of methods (pkg/class.name) to restrict compilation to") \ | |
3199 \ | |
3200 product(ccstr, CompileCommandFile, NULL, \ | |
3201 "Read compiler commands from this file [.hotspot_compiler]") \ | |
3202 \ | |
3203 product(ccstrlist, CompileCommand, "", \ | |
3204 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
3205 \ | |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3206 develop(bool, ReplayCompiles, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3207 "Enable replay of compilations from ReplayDataFile") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3208 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3209 develop(ccstr, ReplayDataFile, "replay.txt", \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3210 "file containing compilation replay information") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3211 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3212 develop(intx, ReplaySuppressInitializers, 2, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3213 "Controls handling of class initialization during replay" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3214 "0 - don't do anything special" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3215 "1 - treat all class initializers as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3216 "2 - treat class initializers for application classes as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3217 "3 - allow all class initializers to run during bootstrap but" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3218 " pretend they are empty after starting replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3219 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3220 develop(bool, ReplayIgnoreInitErrors, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3221 "Ignore exceptions thrown during initialization for replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3222 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3223 develop(bool, DumpReplayDataOnError, true, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3224 "record replay data for crashing compiler threads") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3225 \ |
0 | 3226 product(bool, CICompilerCountPerCPU, false, \ |
3227 "1 compiler thread for log(N CPUs)") \ | |
3228 \ | |
3229 develop(intx, CIFireOOMAt, -1, \ | |
3230 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
3231 "(non-negative value throws OOM after this many CI accesses " \ | |
3232 "in each compile)") \ | |
3233 \ | |
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3234 notproduct(bool, CIObjectFactoryVerify, false, \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3235 "enable potentially expensive verification in ciObjectFactory") \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3236 \ |
0 | 3237 /* Priorities */ \ |
3238 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
3239 \ | |
3240 product(intx, ThreadPriorityPolicy, 0, \ | |
3241 "0 : Normal. "\ | |
3242 " VM chooses priorities that are appropriate for normal "\ | |
3243 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
3244 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
3245 " map to lower native priority values. On Windows applications"\ | |
3246 " are allowed to use higher native priorities. However, with "\ | |
3247 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
3248 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
3249 " interfere with system threads. On Linux thread priorities "\ | |
3250 " are ignored because the OS does not support static priority "\ | |
3251 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
3252 " non-root, non-realtime applications. "\ | |
3253 "1 : Aggressive. "\ | |
3254 " Java thread priorities map over to the entire range of "\ | |
3255 " native thread priorities. Higher Java thread priorities map "\ | |
3256 " to higher native thread priorities. This policy should be "\ | |
3257 " used with care, as sometimes it can cause performance "\ | |
3258 " degradation in the application and/or the entire system. On "\ | |
3259 " Linux this policy requires root privilege.") \ | |
3260 \ | |
3261 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
|
3262 "Print priority changes") \ |
0 | 3263 \ |
3264 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
|
3265 "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
|
3266 "specified (-1 means no change)") \ |
0 | 3267 \ |
3268 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
|
3269 "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
|
3270 "(-1 means no change)") \ |
0 | 3271 \ |
3272 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
|
3273 "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
|
3274 "(-1 means no change)") \ |
0 | 3275 \ |
3276 product(bool, CompilerThreadHintNoPreempt, true, \ | |
3277 "(Solaris only) Give compiler threads an extra quanta") \ | |
3278 \ | |
3279 product(bool, VMThreadHintNoPreempt, false, \ | |
3280 "(Solaris only) Give VM thread an extra quanta") \ | |
3281 \ | |
3282 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3283 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3284 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3285 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3286 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3287 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3288 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3289 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3290 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3291 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
3292 \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3293 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
|
3294 "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
|
3295 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3296 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
|
3297 "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
|
3298 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3299 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
|
3300 "ConcurrentMarkSweep thread runs at critical scheduling priority")\ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3301 \ |
0 | 3302 /* compiler debugging */ \ |
3303 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
3304 "First class to consider when using +CompileTheWorld") \ | |
3305 \ | |
3306 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
3307 "Last class to consider when using +CompileTheWorld") \ | |
3308 \ | |
3309 develop(intx, NewCodeParameter, 0, \ | |
3310 "Testing Only: Create a dedicated integer parameter before " \ | |
3311 "putback") \ | |
3312 \ | |
3313 /* new oopmap storage allocation */ \ | |
3314 develop(intx, MinOopMapAllocation, 8, \ | |
3315 "Minimum number of OopMap entries in an OopMapSet") \ | |
3316 \ | |
3317 /* Background Compilation */ \ | |
3318 develop(intx, LongCompileThreshold, 50, \ | |
3319 "Used with +TraceLongCompiles") \ | |
3320 \ | |
3321 product(intx, StarvationMonitorInterval, 200, \ | |
3322 "Pause between each check in ms") \ | |
3323 \ | |
3324 /* recompilation */ \ | |
3325 product_pd(intx, CompileThreshold, \ | |
3326 "number of interpreted method invocations before (re-)compiling") \ | |
3327 \ | |
3328 product_pd(intx, BackEdgeThreshold, \ | |
3329 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
3330 \ | |
1783 | 3331 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
3332 "Interpreter (tier 0) invocation notification frequency.") \ | |
3333 \ | |
3334 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
3335 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3336 \ | |
3337 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
3338 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3339 "frequency.") \ | |
3340 \ | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3341 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3342 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3343 \ |
1783 | 3344 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
3345 "Interpreter (tier 0) invocation notification frequency.") \ | |
3346 \ | |
3347 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
3348 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3349 \ | |
3350 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
3351 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3352 "frequency.") \ | |
3353 \ | |
3354 product(intx, Tier2CompileThreshold, 0, \ | |
3355 "threshold at which tier 2 compilation is invoked") \ | |
3356 \ | |
3357 product(intx, Tier2BackEdgeThreshold, 0, \ | |
3358 "Back edge threshold at which tier 2 compilation is invoked") \ | |
3359 \ | |
3360 product(intx, Tier3InvocationThreshold, 200, \ | |
3361 "Compile if number of method invocations crosses this " \ | |
3362 "threshold") \ | |
3363 \ | |
3364 product(intx, Tier3MinInvocationThreshold, 100, \ | |
3365 "Minimum invocation to compile at tier 3") \ | |
3366 \ | |
3367 product(intx, Tier3CompileThreshold, 2000, \ | |
3368 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
3369 "minimum must be satisfied.") \ | |
3370 \ | |
4819 | 3371 product(intx, Tier3BackEdgeThreshold, 60000, \ |
1783 | 3372 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
3373 \ | |
3374 product(intx, Tier4InvocationThreshold, 5000, \ | |
3375 "Compile if number of method invocations crosses this " \ | |
3376 "threshold") \ | |
3377 \ | |
3378 product(intx, Tier4MinInvocationThreshold, 600, \ | |
3379 "Minimum invocation to compile at tier 4") \ | |
3380 \ | |
3381 product(intx, Tier4CompileThreshold, 15000, \ | |
3382 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
3383 "minimum must be satisfied.") \ | |
3384 \ | |
3385 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
3386 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
3387 \ | |
3388 product(intx, Tier3DelayOn, 5, \ | |
3389 "If C2 queue size grows over this amount per compiler thread " \ | |
3390 "stop compiling at tier 3 and start compiling at tier 2") \ | |
3391 \ | |
3392 product(intx, Tier3DelayOff, 2, \ | |
3393 "If C2 queue size is less than this amount per compiler thread " \ | |
3394 "allow methods compiled at tier 2 transition to tier 3") \ | |
3395 \ | |
3396 product(intx, Tier3LoadFeedback, 5, \ | |
3397 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
3398 "reaches this amount per compiler thread") \ | |
3399 \ | |
3400 product(intx, Tier4LoadFeedback, 3, \ | |
3401 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
3402 "reaches this amount per compiler thread") \ | |
3403 \ | |
3404 product(intx, TieredCompileTaskTimeout, 50, \ | |
3405 "Kill compile task if method was not used within " \ | |
3406 "given timeout in milliseconds") \ | |
3407 \ | |
3408 product(intx, TieredStopAtLevel, 4, \ | |
3409 "Stop at given compilation level") \ | |
3410 \ | |
3411 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
3412 "Start profiling in interpreter if the counters exceed tier 3" \ | |
3413 "thresholds by the specified percentage") \ | |
3414 \ | |
3415 product(intx, TieredRateUpdateMinTime, 1, \ | |
3416 "Minimum rate sampling interval (in milliseconds)") \ | |
3417 \ | |
3418 product(intx, TieredRateUpdateMaxTime, 25, \ | |
3419 "Maximum rate sampling interval (in milliseconds)") \ | |
0 | 3420 \ |
3421 product_pd(bool, TieredCompilation, \ | |
1783 | 3422 "Enable tiered compilation") \ |
3423 \ | |
3424 product(bool, PrintTieredEvents, false, \ | |
3425 "Print tiered events notifications") \ | |
0 | 3426 \ |
3427 product_pd(intx, OnStackReplacePercentage, \ | |
3428 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3429 "of CompileThreshold) before (re-)compiling OSR code") \ | |
3430 \ | |
3431 product(intx, InterpreterProfilePercentage, 33, \ | |
3432 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3433 "of CompileThreshold) before profiling in the interpreter") \ | |
3434 \ | |
3435 develop(intx, MaxRecompilationSearchLength, 10, \ | |
3436 "max. # frames to inspect searching for recompilee") \ | |
3437 \ | |
3438 develop(intx, MaxInterpretedSearchLength, 3, \ | |
3439 "max. # interp. frames to skip when searching for recompilee") \ | |
3440 \ | |
3441 develop(intx, DesiredMethodLimit, 8000, \ | |
3442 "desired max. method size (in bytecodes) after inlining") \ | |
3443 \ | |
3444 develop(intx, HugeMethodLimit, 8000, \ | |
3445 "don't compile methods larger than this if " \ | |
3446 "+DontCompileHugeMethods") \ | |
3447 \ | |
3448 /* New JDK 1.4 reflection implementation */ \ | |
3449 \ | |
3450 develop(bool, UseNewReflection, true, \ | |
3451 "Temporary flag for transition to reflection based on dynamic " \ | |
3452 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
3453 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
3454 "changes were needed") \ | |
3455 \ | |
3456 develop(bool, VerifyReflectionBytecodes, false, \ | |
3457 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
3458 "in situations like that described in 4486457 or for " \ | |
3459 "constructors generated for serialization, so can not be enabled "\ | |
3460 "in product.") \ | |
3461 \ | |
3462 product(bool, ReflectionWrapResolutionErrors, true, \ | |
3463 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
3464 "in InvocationTargetException. See 6531596") \ | |
3465 \ | |
3466 \ | |
3467 develop(intx, FastSuperclassLimit, 8, \ | |
3468 "Depth of hardwired instanceof accelerator array") \ | |
3469 \ | |
3470 /* Properties for Java libraries */ \ | |
3471 \ | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6197
diff
changeset
|
3472 product(uintx, MaxDirectMemorySize, 0, \ |
0 | 3473 "Maximum total size of NIO direct-buffer allocations") \ |
3474 \ | |
3475 /* temporary developer defined flags */ \ | |
3476 \ | |
3477 diagnostic(bool, UseNewCode, false, \ | |
3478 "Testing Only: Use the new version while testing") \ | |
3479 \ | |
3480 diagnostic(bool, UseNewCode2, false, \ | |
3481 "Testing Only: Use the new version while testing") \ | |
3482 \ | |
3483 diagnostic(bool, UseNewCode3, false, \ | |
3484 "Testing Only: Use the new version while testing") \ | |
3485 \ | |
3486 /* flags for performance data collection */ \ | |
3487 \ | |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3488 product(bool, UsePerfData, falseInEmbedded, \ |
0 | 3489 "Flag to disable jvmstat instrumentation for performance testing" \ |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3490 "and problem isolation purposes.") \ |
0 | 3491 \ |
3492 product(bool, PerfDataSaveToFile, false, \ | |
3493 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
3494 \ | |
3495 product(ccstr, PerfDataSaveFile, NULL, \ | |
3496 "Save PerfData memory to the specified absolute pathname," \ | |
3497 "%p in the file name if present will be replaced by pid") \ | |
3498 \ | |
3499 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
3500 "Data sampling interval in milliseconds") \ | |
3501 \ | |
3502 develop(bool, PerfTraceDataCreation, false, \ | |
3503 "Trace creation of Performance Data Entries") \ | |
3504 \ | |
3505 develop(bool, PerfTraceMemOps, false, \ | |
3506 "Trace PerfMemory create/attach/detach calls") \ | |
3507 \ | |
3508 product(bool, PerfDisableSharedMem, false, \ | |
3509 "Store performance data in standard memory") \ | |
3510 \ | |
3511 product(intx, PerfDataMemorySize, 32*K, \ | |
3512 "Size of performance data memory region. Will be rounded " \ | |
3513 "up to a multiple of the native os page size.") \ | |
3514 \ | |
3515 product(intx, PerfMaxStringConstLength, 1024, \ | |
3516 "Maximum PerfStringConstant string length before truncation") \ | |
3517 \ | |
3518 product(bool, PerfAllowAtExitRegistration, false, \ | |
3519 "Allow registration of atexit() methods") \ | |
3520 \ | |
3521 product(bool, PerfBypassFileSystemCheck, false, \ | |
3522 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
3523 \ | |
3524 product(intx, UnguardOnExecutionViolation, 0, \ | |
3525 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
3526 "0=off, 1=conservative, 2=aggressive") \ | |
3527 \ | |
3528 /* Serviceability Support */ \ | |
3529 \ | |
3530 product(bool, ManagementServer, false, \ | |
3531 "Create JMX Management Server") \ | |
3532 \ | |
3533 product(bool, DisableAttachMechanism, false, \ | |
3534 "Disable mechanism that allows tools to attach to this VM") \ | |
3535 \ | |
3536 product(bool, StartAttachListener, false, \ | |
3537 "Always start Attach Listener at VM startup") \ | |
3538 \ | |
3539 manageable(bool, PrintConcurrentLocks, false, \ | |
3540 "Print java.util.concurrent locks in thread dump") \ | |
3541 \ | |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3542 product(bool, TransmitErrorReport, false, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3543 "Enable error report transmission on erroneous termination") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3544 \ |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3545 product(ccstr, ErrorReportServer, NULL, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3546 "Override built-in error report server address") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3547 \ |
0 | 3548 /* Shared spaces */ \ |
3549 \ | |
3550 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
|
3551 "Use shared spaces for metadata") \ |
0 | 3552 \ |
3553 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
|
3554 "Require shared spaces for metadata") \ |
0 | 3555 \ |
3556 product(bool, DumpSharedSpaces, false, \ | |
3557 "Special mode: JVM reads a class list, loads classes, builds " \ | |
3558 "shared spaces, and dumps the shared spaces to a file to be " \ | |
3559 "used in future JVM runs.") \ | |
3560 \ | |
3561 product(bool, PrintSharedSpaces, false, \ | |
3562 "Print usage of shared spaces") \ | |
3563 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3564 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
|
3565 "Size of read-write space for metadata (in bytes)") \ |
0 | 3566 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3567 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
|
3568 "Size of read-only space for metadata (in bytes)") \ |
0 | 3569 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3570 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
|
3571 "Size of the shared miscellaneous data area (in bytes)") \ |
0 | 3572 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3573 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
|
3574 "Size of the shared miscellaneous code area (in bytes)") \ |
0 | 3575 \ |
8804
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3576 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3577 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
|
3578 "Address to allocate shared memory region for class data") \ |
0 | 3579 \ |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3580 diagnostic(bool, EnableInvokeDynamic, true, \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3581 "support JSR 292 (method handles, invokedynamic, " \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3582 "anonymous classes") \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3583 \ |
3757
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3584 diagnostic(bool, PrintMethodHandleStubs, false, \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3585 "Print generated stub code for method handles") \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3586 \ |
710 | 3587 develop(bool, TraceMethodHandles, false, \ |
3588 "trace internal method handle operations") \ | |
3589 \ | |
3590 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
3591 "perform extra checks when constructing method handles") \ | |
3592 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3593 diagnostic(bool, ShowHiddenFrames, false, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3594 "show method handle implementation frames (usually hidden)") \ |
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3595 \ |
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3596 experimental(bool, TrustFinalNonStaticFields, false, \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3597 "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
|
3598 \ |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3599 develop(bool, TraceInvokeDynamic, false, \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3600 "trace internal invoke dynamic operations") \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3601 \ |
0 | 3602 diagnostic(bool, PauseAtStartup, false, \ |
3603 "Causes the VM to pause at startup time and wait for the pause " \ | |
3604 "file to be removed (default: ./vm.paused.<pid>)") \ | |
3605 \ | |
3606 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
3607 "The file to create and for whose removal to await when pausing " \ | |
3608 "at startup. (default: ./vm.paused.<pid>)") \ | |
3609 \ | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3610 diagnostic(bool, PauseAtExit, false, \ |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3611 "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
|
3612 \ |
0 | 3613 product(bool, ExtendedDTraceProbes, false, \ |
3614 "Enable performance-impacting dtrace probes") \ | |
3615 \ | |
3616 product(bool, DTraceMethodProbes, false, \ | |
3617 "Enable dtrace probes for method-entry and method-exit") \ | |
3618 \ | |
3619 product(bool, DTraceAllocProbes, false, \ | |
3620 "Enable dtrace probes for object allocation") \ | |
3621 \ | |
3622 product(bool, DTraceMonitorProbes, false, \ | |
3623 "Enable dtrace probes for monitor events") \ | |
3624 \ | |
3625 product(bool, RelaxAccessControlCheck, false, \ | |
3626 "Relax the access control checks in the verifier") \ | |
3627 \ | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3628 diagnostic(bool, PrintDTraceDOF, false, \ |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3629 "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
|
3630 \ |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6935
diff
changeset
|
3631 product(uintx, StringTableSize, defaultStringTableSize, \ |
2378 | 3632 "Number of buckets in the interned String table") \ |
3633 \ | |
6934 | 3634 develop(bool, TraceDefaultMethods, false, \ |
3635 "Trace the default method processing steps") \ | |
3636 \ | |
3637 develop(bool, ParseAllGenericSignatures, false, \ | |
3638 "Parse all generic signatures while classloading") \ | |
3639 \ | |
3640 develop(bool, VerifyGenericSignatures, false, \ | |
3641 "Abort VM on erroneous or inconsistent generic signatures") \ | |
3642 \ | |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3643 product(bool, UseVMInterruptibleIO, false, \ |
0 | 3644 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3645 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
5915 | 3646 " of this flag is true for JDK 6 and earlier") \ |
3647 \ | |
3648 diagnostic(bool, WhiteBoxAPI, false, \ | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3649 "Enable internal testing APIs") \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3650 \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3651 product(bool, PrintGCCause, true, \ |
8702 | 3652 "Include GC cause in GC logging") \ |
3653 \ | |
3654 product(bool, AllowNonVirtualCalls, false, \ | |
3655 "Obey the ACC_SUPER flag and allow invokenonvirtual calls") | |
0 | 3656 |
3657 /* | |
3658 * Macros for factoring of globals | |
3659 */ | |
3660 | |
3661 // Interface macros | |
3662 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3663 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; | |
3664 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; | |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3665 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3666 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
3667 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; | |
3668 #ifdef PRODUCT | |
3669 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; | |
3670 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; | |
3671 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3672 #else | |
3673 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; | |
3674 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; | |
3675 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3676 #endif | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3677 // 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
|
3678 #ifdef _LP64 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3679 #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
|
3680 #else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3681 #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
|
3682 #endif // _LP64 |
0 | 3683 |
3684 // Implementation macros | |
3685 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; | |
3686 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; | |
3687 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; | |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3688 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
0 | 3689 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
3690 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; | |
3691 #ifdef PRODUCT | |
3692 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ | |
3693 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ | |
3694 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3695 #else | |
3696 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; | |
3697 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; | |
3698 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; | |
3699 #endif | |
113
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 MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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 MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3704 #endif // _LP64 |
0 | 3705 |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3706 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 | 3707 |
3708 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
1972 | 3709 |
6633
a5dd6e3ef9f3
6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp
twisti
parents:
6608
diff
changeset
|
3710 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) |
a5dd6e3ef9f3
6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp
twisti
parents:
6608
diff
changeset
|
3711 |
4107
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3712 // Extensions |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3713 |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3714 #include "runtime/globals_ext.hpp" |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3715 |
1972 | 3716 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |