Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.hpp @ 9099:ed81c74f92ff
Cache boolean flags instead of full Annotation objects
author | Christian Wimmer <christian.wimmer@oracle.com> |
---|---|
date | Fri, 12 Apr 2013 16:05:56 -0700 |
parents | 89e4d67fdd2a |
children | b78686983a75 |
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 |
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123 #ifdef GRAAL |
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124 #ifdef TARGET_ARCH_x86 |
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125 # include "graalGlobals_x86.hpp" |
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126 #endif |
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127 #ifdef TARGET_ARCH_sparc |
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128 # include "graalGlobals_sparc.hpp" |
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129 #endif |
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130 #ifdef TARGET_ARCH_arm |
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131 # include "graalGlobals_arm.hpp" |
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132 #endif |
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133 #ifdef TARGET_ARCH_ppc |
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134 # include "graalGlobals_ppc.hpp" |
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135 #endif |
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136 #endif // GRAAL |
1972 | 137 #ifdef COMPILER2 |
138 #ifdef TARGET_ARCH_x86 | |
139 # include "c2_globals_x86.hpp" | |
140 #endif | |
141 #ifdef TARGET_ARCH_sparc | |
142 # include "c2_globals_sparc.hpp" | |
143 #endif | |
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144 #ifdef TARGET_ARCH_arm |
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145 # include "c2_globals_arm.hpp" |
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146 #endif |
1972 | 147 #ifdef TARGET_OS_FAMILY_linux |
148 # include "c2_globals_linux.hpp" | |
149 #endif | |
150 #ifdef TARGET_OS_FAMILY_solaris | |
151 # include "c2_globals_solaris.hpp" | |
152 #endif | |
153 #ifdef TARGET_OS_FAMILY_windows | |
154 # include "c2_globals_windows.hpp" | |
155 #endif | |
3960 | 156 #ifdef TARGET_OS_FAMILY_bsd |
157 # include "c2_globals_bsd.hpp" | |
158 #endif | |
1972 | 159 #endif |
160 #ifdef SHARK | |
161 #ifdef TARGET_ARCH_zero | |
162 # include "shark_globals_zero.hpp" | |
163 #endif | |
164 #endif | |
165 | |
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166 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) && !defined(GRAAL) |
0 | 167 define_pd_global(bool, BackgroundCompilation, false); |
168 define_pd_global(bool, UseTLAB, false); | |
169 define_pd_global(bool, CICompileOSR, false); | |
170 define_pd_global(bool, UseTypeProfile, false); | |
171 define_pd_global(bool, UseOnStackReplacement, false); | |
172 define_pd_global(bool, InlineIntrinsics, false); | |
173 define_pd_global(bool, PreferInterpreterNativeStubs, true); | |
174 define_pd_global(bool, ProfileInterpreter, false); | |
175 define_pd_global(bool, ProfileTraps, false); | |
176 define_pd_global(bool, TieredCompilation, false); | |
177 | |
178 define_pd_global(intx, CompileThreshold, 0); | |
179 define_pd_global(intx, BackEdgeThreshold, 0); | |
180 | |
181 define_pd_global(intx, OnStackReplacePercentage, 0); | |
182 define_pd_global(bool, ResizeTLAB, false); | |
183 define_pd_global(intx, FreqInlineSize, 0); | |
1064 | 184 define_pd_global(intx, InlineSmallCode, 0); |
0 | 185 define_pd_global(intx, NewSizeThreadIncrease, 4*K); |
186 define_pd_global(intx, InlineClassNatives, true); | |
187 define_pd_global(intx, InlineUnsafeOps, true); | |
188 define_pd_global(intx, InitialCodeCacheSize, 160*K); | |
189 define_pd_global(intx, ReservedCodeCacheSize, 32*M); | |
190 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
191 define_pd_global(intx, CodeCacheMinBlockLength, 1); | |
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192 define_pd_global(uintx,MetaspaceSize, ScaleForWordSize(4*M)); |
0 | 193 define_pd_global(bool, NeverActAsServerClassMachine, true); |
1064 | 194 define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
0 | 195 #define CI_COMPILER_COUNT 0 |
196 #else | |
197 | |
198 #ifdef COMPILER2 | |
199 #define CI_COMPILER_COUNT 2 | |
200 #else | |
201 #define CI_COMPILER_COUNT 1 | |
202 #endif // COMPILER2 | |
203 | |
204 #endif // no compilers | |
205 | |
206 // string type aliases used only in this file | |
207 typedef const char* ccstr; | |
208 typedef const char* ccstrlist; // represents string arguments which accumulate | |
209 | |
210 enum FlagValueOrigin { | |
211 DEFAULT = 0, | |
212 COMMAND_LINE = 1, | |
213 ENVIRON_VAR = 2, | |
214 CONFIG_FILE = 3, | |
215 MANAGEMENT = 4, | |
216 ERGONOMIC = 5, | |
217 ATTACH_ON_DEMAND = 6, | |
218 INTERNAL = 99 | |
219 }; | |
220 | |
221 struct Flag { | |
222 const char *type; | |
223 const char *name; | |
224 void* addr; | |
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225 |
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226 NOT_PRODUCT(const char *doc;) |
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227 |
0 | 228 const char *kind; |
229 FlagValueOrigin origin; | |
230 | |
231 // points to all Flags static array | |
232 static Flag *flags; | |
233 | |
234 // number of flags | |
235 static size_t numFlags; | |
236 | |
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237 static Flag* find_flag(char* name, size_t length, bool allow_locked = false); |
0 | 238 |
239 bool is_bool() const { return strcmp(type, "bool") == 0; } | |
240 bool get_bool() const { return *((bool*) addr); } | |
241 void set_bool(bool value) { *((bool*) addr) = value; } | |
242 | |
243 bool is_intx() const { return strcmp(type, "intx") == 0; } | |
244 intx get_intx() const { return *((intx*) addr); } | |
245 void set_intx(intx value) { *((intx*) addr) = value; } | |
246 | |
247 bool is_uintx() const { return strcmp(type, "uintx") == 0; } | |
248 uintx get_uintx() const { return *((uintx*) addr); } | |
249 void set_uintx(uintx value) { *((uintx*) addr) = value; } | |
250 | |
1064 | 251 bool is_uint64_t() const { return strcmp(type, "uint64_t") == 0; } |
252 uint64_t get_uint64_t() const { return *((uint64_t*) addr); } | |
253 void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; } | |
254 | |
0 | 255 bool is_double() const { return strcmp(type, "double") == 0; } |
256 double get_double() const { return *((double*) addr); } | |
257 void set_double(double value) { *((double*) addr) = value; } | |
258 | |
259 bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; } | |
260 bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; } | |
261 ccstr get_ccstr() const { return *((ccstr*) addr); } | |
262 void set_ccstr(ccstr value) { *((ccstr*) addr) = value; } | |
263 | |
264 bool is_unlocker() const; | |
265 bool is_unlocked() const; | |
266 bool is_writeable() const; | |
267 bool is_external() const; | |
268 | |
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269 bool is_unlocker_ext() const; |
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270 bool is_unlocked_ext() const; |
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271 bool is_writeable_ext() const; |
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272 bool is_external_ext() const; |
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273 |
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274 void get_locked_message(char*, int) const; |
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275 void get_locked_message_ext(char*, int) const; |
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276 |
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277 void print_on(outputStream* st, bool withComments = false ); |
0 | 278 void print_as_flag(outputStream* st); |
279 }; | |
280 | |
281 // debug flags control various aspects of the VM and are global accessible | |
282 | |
283 // use FlagSetting to temporarily change some debug flag | |
284 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
285 // restored to previous value upon leaving scope | |
286 class FlagSetting { | |
287 bool val; | |
288 bool* flag; | |
289 public: | |
290 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
291 ~FlagSetting() { *flag = val; } | |
292 }; | |
293 | |
294 | |
295 class CounterSetting { | |
296 intx* counter; | |
297 public: | |
298 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
299 ~CounterSetting() { (*counter)--; } | |
300 }; | |
301 | |
302 | |
303 class IntFlagSetting { | |
304 intx val; | |
305 intx* flag; | |
306 public: | |
307 IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; } | |
308 ~IntFlagSetting() { *flag = val; } | |
309 }; | |
310 | |
311 | |
312 class DoubleFlagSetting { | |
313 double val; | |
314 double* flag; | |
315 public: | |
316 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
317 ~DoubleFlagSetting() { *flag = val; } | |
318 }; | |
319 | |
320 | |
321 class CommandLineFlags { | |
322 public: | |
323 static bool boolAt(char* name, size_t len, bool* value); | |
324 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
325 static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin); | |
326 static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); } | |
327 | |
328 static bool intxAt(char* name, size_t len, intx* value); | |
329 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
330 static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin); | |
331 static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); } | |
332 | |
333 static bool uintxAt(char* name, size_t len, uintx* value); | |
334 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
335 static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin); | |
336 static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); } | |
337 | |
1064 | 338 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
339 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
340 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin); | |
341 static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); } | |
342 | |
0 | 343 static bool doubleAt(char* name, size_t len, double* value); |
344 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
345 static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin); | |
346 static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); } | |
347 | |
348 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
349 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
350 static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin); | |
351 static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); } | |
352 | |
353 // Returns false if name is not a command line flag. | |
354 static bool wasSetOnCmdline(const char* name, bool* value); | |
4773 | 355 static void printSetFlags(outputStream* out); |
0 | 356 |
4773 | 357 static void printFlags(outputStream* out, bool withComments); |
0 | 358 |
359 static void verify() PRODUCT_RETURN; | |
360 }; | |
361 | |
362 // use this for flags that are true by default in the debug version but | |
363 // false in the optimized version, and vice versa | |
364 #ifdef ASSERT | |
365 #define trueInDebug true | |
366 #define falseInDebug false | |
367 #else | |
368 #define trueInDebug false | |
369 #define falseInDebug true | |
370 #endif | |
371 | |
372 // use this for flags that are true per default in the product build | |
373 // but false in development builds, and vice versa | |
374 #ifdef PRODUCT | |
375 #define trueInProduct true | |
376 #define falseInProduct false | |
377 #else | |
378 #define trueInProduct false | |
379 #define falseInProduct true | |
380 #endif | |
381 | |
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382 #ifdef JAVASE_EMBEDDED |
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383 #define falseInEmbedded false |
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384 #else |
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385 #define falseInEmbedded true |
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386 #endif |
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387 |
0 | 388 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
389 // product flags are always settable / visible | |
390 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
391 | |
392 // A flag must be declared with one of the following types: | |
393 // bool, intx, uintx, ccstr. | |
394 // The type "ccstr" is an alias for "const char*" and is used | |
395 // only in this file, because the macrology requires single-token type names. | |
396 | |
397 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
398 // They are to be used for VM quality assurance or field diagnosis | |
399 // of VM bugs. They are hidden so that users will not be encouraged to | |
400 // try them as if they were VM ordinary execution options. However, they | |
401 // are available in the product version of the VM. Under instruction | |
402 // from support engineers, VM customers can turn them on to collect | |
403 // diagnostic information about VM problems. To use a VM diagnostic | |
404 // option, you must first specify +UnlockDiagnosticVMOptions. | |
405 // (This master switch also affects the behavior of -Xprintflags.) | |
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406 // |
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407 // experimental flags are in support of features that are not |
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408 // part of the officially supported product, but are available |
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409 // for experimenting with. They could, for example, be performance |
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410 // features that may not have undergone full or rigorous QA, but which may |
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411 // help performance in some cases and released for experimentation |
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412 // by the community of users and developers. This flag also allows one to |
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413 // be able to build a fully supported product that nonetheless also |
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414 // ships with some unsupported, lightly tested, experimental features. |
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415 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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416 // UnlockExperimentalVMOptions flag, which allows the control and |
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417 // modification of the experimental flags. |
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418 // |
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419 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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420 // and they are not supported on production loads, except under explicit |
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421 // direction from support engineers. |
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422 // |
0 | 423 // manageable flags are writeable external product flags. |
424 // They are dynamically writeable through the JDK management interface | |
425 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
426 // These flags are external exported interface (see CCC). The list of | |
427 // manageable flags can be queried programmatically through the management | |
428 // interface. | |
429 // | |
430 // A flag can be made as "manageable" only if | |
431 // - the flag is defined in a CCC as an external exported interface. | |
432 // - the VM implementation supports dynamic setting of the flag. | |
433 // This implies that the VM must *always* query the flag variable | |
434 // and not reuse state related to the flag state at any given time. | |
435 // - you want the flag to be queried programmatically by the customers. | |
436 // | |
437 // product_rw flags are writeable internal product flags. | |
438 // They are like "manageable" flags but for internal/private use. | |
439 // The list of product_rw flags are internal/private flags which | |
440 // may be changed/removed in a future release. It can be set | |
441 // through the management interface to get/set value | |
442 // when the name of flag is supplied. | |
443 // | |
444 // A flag can be made as "product_rw" only if | |
445 // - the VM implementation supports dynamic setting of the flag. | |
446 // This implies that the VM must *always* query the flag variable | |
447 // and not reuse state related to the flag state at any given time. | |
448 // | |
449 // Note that when there is a need to support develop flags to be writeable, | |
450 // it can be done in the same way as product_rw. | |
451 | |
350
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452 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
113
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453 \ |
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454 lp64_product(bool, UseCompressedOops, false, \ |
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455 "Use 32-bit object references in 64-bit VM " \ |
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456 "lp64_product means flag is always constant in 32 bit VM") \ |
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457 \ |
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458 lp64_product(bool, UseCompressedKlassPointers, false, \ |
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459 "Use 32-bit klass pointers in 64-bit VM " \ |
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460 "lp64_product means flag is always constant in 32 bit VM") \ |
0 | 461 \ |
642
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462 notproduct(bool, CheckCompressedOops, true, \ |
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463 "generate checks in encoding/decoding code in debug VM") \ |
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464 \ |
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465 product_pd(uintx, HeapBaseMinAddress, \ |
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466 "OS specific low limit for heap base address") \ |
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467 \ |
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468 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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469 "Print compressed oops base address and encoding mode") \ |
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470 \ |
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471 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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472 "Default object alignment in bytes, 8 is minimum") \ |
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473 \ |
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474 product(bool, AssumeMP, false, \ |
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475 "Instruct the VM to assume multiple processors are available") \ |
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476 \ |
0 | 477 /* UseMembar is theoretically a temp flag used for memory barrier \ |
478 * removal testing. It was supposed to be removed before FCS but has \ | |
479 * been re-added (see 6401008) */ \ | |
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480 product_pd(bool, UseMembar, \ |
0 | 481 "(Unstable) Issues membars on thread state transitions") \ |
482 \ | |
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483 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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484 * that don't support it. This will be replaced by processor detection \ |
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485 * logic. \ |
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486 */ \ |
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487 product(bool, UsePPCLWSYNC, true, \ |
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488 "Use lwsync instruction if true, else use slower sync") \ |
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489 \ |
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490 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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491 "Whether to clean the chunk pool asynchronously") \ |
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492 \ |
6818 | 493 /* Temporary: See 6948537 */ \ |
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494 experimental(bool, UseMemSetInBOT, true, \ |
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495 "(Unstable) uses memset in BOT updates in GC code") \ |
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496 \ |
0 | 497 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
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498 "Enable normal processing of flags relating to field diagnostics")\ |
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499 \ |
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500 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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501 "Enable normal processing of flags relating to experimental features")\ |
0 | 502 \ |
503 product(bool, JavaMonitorsInStackTrace, true, \ | |
504 "Print info. about Java monitor locks when the stacks are dumped")\ | |
505 \ | |
506 product_pd(bool, UseLargePages, \ | |
507 "Use large page memory") \ | |
508 \ | |
389
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509 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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510 "Allocate large pages individually for better affinity") \ |
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511 \ |
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512 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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513 "Fail large pages individual allocation") \ |
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514 \ |
0 | 515 develop(bool, TracePageSizes, false, \ |
516 "Trace page size selection and usage.") \ | |
517 \ | |
518 product(bool, UseNUMA, false, \ | |
519 "Use NUMA if available") \ | |
520 \ | |
3885 | 521 product(bool, UseNUMAInterleaving, false, \ |
522 "Interleave memory across NUMA nodes if available") \ | |
523 \ | |
524 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
525 "Granularity to use for NUMA interleaving on Windows OS") \ | |
526 \ | |
462
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527 product(bool, ForceNUMA, false, \ |
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528 "Force NUMA optimizations on single-node/UMA systems") \ |
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529 \ |
0 | 530 product(intx, NUMAChunkResizeWeight, 20, \ |
531 "Percentage (0-100) used to weight the current sample when " \ | |
532 "computing exponentially decaying average for " \ | |
533 "AdaptiveNUMAChunkSizing") \ | |
534 \ | |
535 product(intx, NUMASpaceResizeRate, 1*G, \ | |
536 "Do not reallocate more that this amount per collection") \ | |
537 \ | |
538 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
539 "Enable adaptive chunk sizing for NUMA") \ | |
540 \ | |
541 product(bool, NUMAStats, false, \ | |
542 "Print NUMA stats in detailed heap information") \ | |
543 \ | |
544 product(intx, NUMAPageScanRate, 256, \ | |
545 "Maximum number of pages to include in the page scan procedure") \ | |
546 \ | |
547 product_pd(bool, NeedsDeoptSuspend, \ | |
548 "True for register window machines (sparc/ia64)") \ | |
549 \ | |
550 product(intx, UseSSE, 99, \ | |
551 "Highest supported SSE instructions set on x86/x64") \ | |
552 \ | |
6894 | 553 product(bool, UseAES, false, \ |
554 "Control whether AES instructions can be used on x86/x64") \ | |
555 \ | |
0 | 556 product(uintx, LargePageSizeInBytes, 0, \ |
557 "Large page size (0 to let VM choose the page size") \ | |
558 \ | |
559 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
560 "Use large pages if max heap is at least this big") \ | |
561 \ | |
562 product(bool, ForceTimeHighResolution, false, \ | |
563 "Using high time resolution(For Win32 only)") \ | |
564 \ | |
565 develop(bool, TraceItables, false, \ | |
566 "Trace initialization and use of itables") \ | |
567 \ | |
568 develop(bool, TracePcPatching, false, \ | |
569 "Trace usage of frame::patch_pc") \ | |
570 \ | |
571 develop(bool, TraceJumps, false, \ | |
572 "Trace assembly jumps in thread ring buffer") \ | |
573 \ | |
574 develop(bool, TraceRelocator, false, \ | |
575 "Trace the bytecode relocator") \ | |
576 \ | |
577 develop(bool, TraceLongCompiles, false, \ | |
578 "Print out every time compilation is longer than " \ | |
579 "a given threashold") \ | |
580 \ | |
581 develop(bool, SafepointALot, false, \ | |
582 "Generates a lot of safepoints. Works with " \ | |
583 "GuaranteedSafepointInterval") \ | |
584 \ | |
585 product_pd(bool, BackgroundCompilation, \ | |
586 "A thread requesting compilation is not blocked during " \ | |
587 "compilation") \ | |
588 \ | |
589 product(bool, PrintVMQWaitTime, false, \ | |
590 "Prints out the waiting time in VM operation queue") \ | |
591 \ | |
592 develop(bool, NoYieldsInMicrolock, false, \ | |
593 "Disable yields in microlock") \ | |
594 \ | |
595 develop(bool, TraceOopMapGeneration, false, \ | |
596 "Shows oopmap generation") \ | |
597 \ | |
598 product(bool, MethodFlushing, true, \ | |
599 "Reclamation of zombie and not-entrant methods") \ | |
600 \ | |
601 develop(bool, VerifyStack, false, \ | |
602 "Verify stack of each thread when it is entering a runtime call") \ | |
603 \ | |
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604 diagnostic(bool, ForceUnreachable, false, \ |
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605 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ |
0 | 606 \ |
607 notproduct(bool, StressDerivedPointers, false, \ | |
608 "Force scavenge when a derived pointers is detected on stack " \ | |
609 "after rtm call") \ | |
610 \ | |
611 develop(bool, TraceDerivedPointers, false, \ | |
612 "Trace traversal of derived pointers on stack") \ | |
613 \ | |
614 notproduct(bool, TraceCodeBlobStacks, false, \ | |
615 "Trace stack-walk of codeblobs") \ | |
616 \ | |
617 product(bool, PrintJNIResolving, false, \ | |
618 "Used to implement -v:jni") \ | |
619 \ | |
620 notproduct(bool, PrintRewrites, false, \ | |
621 "Print methods that are being rewritten") \ | |
622 \ | |
623 product(bool, UseInlineCaches, true, \ | |
624 "Use Inline Caches for virtual calls ") \ | |
625 \ | |
626 develop(bool, InlineArrayCopy, true, \ | |
627 "inline arraycopy native that is known to be part of " \ | |
628 "base library DLL") \ | |
629 \ | |
630 develop(bool, InlineObjectHash, true, \ | |
631 "inline Object::hashCode() native that is known to be part " \ | |
632 "of base library DLL") \ | |
633 \ | |
634 develop(bool, InlineNatives, true, \ | |
635 "inline natives that are known to be part of base library DLL") \ | |
636 \ | |
637 develop(bool, InlineMathNatives, true, \ | |
638 "inline SinD, CosD, etc.") \ | |
639 \ | |
640 develop(bool, InlineClassNatives, true, \ | |
641 "inline Class.isInstance, etc") \ | |
642 \ | |
643 develop(bool, InlineThreadNatives, true, \ | |
644 "inline Thread.currentThread, etc") \ | |
645 \ | |
646 develop(bool, InlineUnsafeOps, true, \ | |
647 "inline memory ops (native methods) from sun.misc.Unsafe") \ | |
648 \ | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
649 product(bool, CriticalJNINatives, true, \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
650 "check for critical JNI entry points") \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
651 \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
652 notproduct(bool, StressCriticalJNINatives, false, \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
653 "Exercise register saving code in critical natives") \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
654 \ |
681 | 655 product(bool, UseSSE42Intrinsics, false, \ |
656 "SSE4.2 versions of intrinsics") \ | |
657 \ | |
6894 | 658 product(bool, UseAESIntrinsics, false, \ |
659 "use intrinsics for AES versions of crypto") \ | |
660 \ | |
0 | 661 develop(bool, TraceCallFixup, false, \ |
662 "traces all call fixups") \ | |
663 \ | |
4688
f761948a7cd5
Made DeoptimizeALot flag available in product builds (to make testing with that flag faster).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4668
diff
changeset
|
664 product(bool, DeoptimizeALot, false, \ |
0 | 665 "deoptimize at every exit from the runtime system") \ |
666 \ | |
434 | 667 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
0 | 668 "a comma separated list of bcis to deoptimize at") \ |
669 \ | |
670 product(bool, DeoptimizeRandom, false, \ | |
671 "deoptimize random frames on random exit from the runtime system")\ | |
672 \ | |
673 notproduct(bool, ZombieALot, false, \ | |
674 "creates zombies (non-entrant) at exit from the runt. system") \ | |
675 \ | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2125
diff
changeset
|
676 product(bool, UnlinkSymbolsALot, false, \ |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2125
diff
changeset
|
677 "unlink unreferenced symbols from the symbol table at safepoints")\ |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2125
diff
changeset
|
678 \ |
0 | 679 notproduct(bool, WalkStackALot, false, \ |
680 "trace stack (no print) at every exit from the runtime system") \ | |
681 \ | |
4006 | 682 product(bool, Debugging, false, \ |
0 | 683 "set when executing debug methods in debug.ccp " \ |
684 "(to prevent triggering assertions)") \ | |
685 \ | |
686 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
687 "Enable strict checks that safepoints cannot happen for threads " \ | |
688 "that used No_Safepoint_Verifier") \ | |
689 \ | |
690 notproduct(bool, VerifyLastFrame, false, \ | |
691 "Verify oops on last frame on entry to VM") \ | |
692 \ | |
693 develop(bool, TraceHandleAllocation, false, \ | |
694 "Prints out warnings when suspicious many handles are allocated") \ | |
695 \ | |
696 product(bool, UseCompilerSafepoints, true, \ | |
697 "Stop at safepoints in compiled code") \ | |
698 \ | |
699 product(bool, FailOverToOldVerifier, true, \ | |
700 "fail over to old verifier when split verifier fails") \ | |
701 \ | |
702 develop(bool, ShowSafepointMsgs, false, \ | |
703 "Show msg. about safepoint synch.") \ | |
704 \ | |
705 product(bool, SafepointTimeout, false, \ | |
706 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
707 "milliseconds if failed to reach safepoint") \ | |
708 \ | |
709 develop(bool, DieOnSafepointTimeout, false, \ | |
710 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
711 \ | |
712 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
713 /* typically, at most a few retries are needed */ \ | |
714 product(intx, SuspendRetryCount, 50, \ | |
715 "Maximum retry count for an external suspend request") \ | |
716 \ | |
717 product(intx, SuspendRetryDelay, 5, \ | |
718 "Milliseconds to delay per retry (* current_retry_count)") \ | |
719 \ | |
720 product(bool, AssertOnSuspendWaitFailure, false, \ | |
721 "Assert/Guarantee on external suspend wait failure") \ | |
722 \ | |
723 product(bool, TraceSuspendWaitFailures, false, \ | |
724 "Trace external suspend wait failures") \ | |
725 \ | |
726 product(bool, MaxFDLimit, true, \ | |
727 "Bump the number of file descriptors to max in solaris.") \ | |
728 \ | |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
729 diagnostic(bool, LogEvents, true, \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
730 "Enable the various ring buffer event logs") \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
731 \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
732 diagnostic(intx, LogEventsBufferEntries, 10, \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
733 "Enable the various ring buffer event logs") \ |
0 | 734 \ |
735 product(bool, BytecodeVerificationRemote, true, \ | |
736 "Enables the Java bytecode verifier for remote classes") \ | |
737 \ | |
738 product(bool, BytecodeVerificationLocal, false, \ | |
739 "Enables the Java bytecode verifier for local classes") \ | |
740 \ | |
741 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
742 "Force exceptions on FP stack under/overflow") \ | |
743 \ | |
744 develop(bool, VerifyStackAtCalls, false, \ | |
745 "Verify that the stack pointer is unchanged after calls") \ | |
746 \ | |
747 develop(bool, TraceJavaAssertions, false, \ | |
748 "Trace java language assertions") \ | |
749 \ | |
750 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
751 "temporary - see javaClasses.cpp") \ | |
752 \ | |
753 notproduct(bool, PrintMallocFree, false, \ | |
754 "Trace calls to C heap malloc/free allocation") \ | |
755 \ | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1660
diff
changeset
|
756 product(bool, PrintOopAddress, false, \ |
0 | 757 "Always print the location of the oop") \ |
758 \ | |
759 notproduct(bool, VerifyCodeCacheOften, false, \ | |
760 "Verify compiled-code cache often") \ | |
761 \ | |
762 develop(bool, ZapDeadCompiledLocals, false, \ | |
763 "Zap dead locals in compiler frames") \ | |
764 \ | |
765 notproduct(bool, ZapDeadLocalsOld, false, \ | |
766 "Zap dead locals (old version, zaps all frames when " \ | |
767 "entering the VM") \ | |
768 \ | |
769 notproduct(bool, CheckOopishValues, false, \ | |
770 "Warn if value contains oop ( requires ZapDeadLocals)") \ | |
771 \ | |
772 develop(bool, UseMallocOnly, false, \ | |
773 "use only malloc/free for allocation (no resource area/arena)") \ | |
774 \ | |
775 develop(bool, PrintMalloc, false, \ | |
776 "print all malloc/free calls") \ | |
777 \ | |
2250 | 778 develop(bool, PrintMallocStatistics, false, \ |
779 "print malloc/free statistics") \ | |
780 \ | |
0 | 781 develop(bool, ZapResourceArea, trueInDebug, \ |
782 "Zap freed resource/arena space with 0xABABABAB") \ | |
783 \ | |
784 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
785 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
786 \ | |
787 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
788 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
789 \ | |
1836
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
790 notproduct(bool, ZapStackSegments, trueInDebug, \ |
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
791 "Zap allocated/freed Stack segments with 0xFADFADED") \ |
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
792 \ |
263
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
793 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
0 | 794 "Zap unused heap space with 0xBAADBABE") \ |
795 \ | |
263
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
796 develop(bool, TraceZapUnusedHeapArea, false, \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
797 "Trace zapping of unused heap space") \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
798 \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
799 develop(bool, CheckZapUnusedHeapArea, false, \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
800 "Check zapping of unused heap space") \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
801 \ |
481
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
802 develop(bool, ZapFillerObjects, trueInDebug, \ |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
803 "Zap filler objects with 0xDEAFBABE") \ |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
804 \ |
0 | 805 develop(bool, PrintVMMessages, true, \ |
806 "Print vm messages on console") \ | |
807 \ | |
808 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
809 "Print the time the application has been running") \ | |
810 \ | |
811 product(bool, PrintGCApplicationStoppedTime, false, \ | |
812 "Print the time the application has been stopped") \ | |
813 \ | |
6605 | 814 diagnostic(bool, VerboseVerification, false, \ |
815 "Display detailed verification details") \ | |
816 \ | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
817 notproduct(uintx, ErrorHandlerTest, 0, \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
818 "If > 0, provokes an error after VM initialization; the value" \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
819 "determines which error to provoke. See test_error_handler()" \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
820 "in debug.cpp.") \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
821 \ |
0 | 822 develop(bool, Verbose, false, \ |
823 "Prints additional debugging information from other modes") \ | |
824 \ | |
825 develop(bool, PrintMiscellaneous, false, \ | |
826 "Prints uncategorized debugging information (requires +Verbose)") \ | |
827 \ | |
828 develop(bool, WizardMode, false, \ | |
829 "Prints much more debugging information") \ | |
830 \ | |
831 product(bool, ShowMessageBoxOnError, false, \ | |
832 "Keep process alive on VM fatal error") \ | |
833 \ | |
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
834 product(bool, CreateMinidumpOnCrash, false, \ |
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
835 "Create minidump on VM fatal error") \ |
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
836 \ |
0 | 837 product_pd(bool, UseOSErrorReporting, \ |
838 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
839 \ | |
840 product(bool, SuppressFatalErrorMessage, false, \ | |
841 "Do NO Fatal Error report [Avoid deadlock]") \ | |
842 \ | |
843 product(ccstrlist, OnError, "", \ | |
844 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
845 "for examples") \ | |
846 \ | |
847 product(ccstrlist, OnOutOfMemoryError, "", \ | |
848 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
849 \ | |
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
850 manageable(bool, HeapDumpBeforeFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
851 "Dump heap to file before any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
852 \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
853 manageable(bool, HeapDumpAfterFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
854 "Dump heap to file after any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
855 \ |
0 | 856 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
857 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
858 \ | |
859 manageable(ccstr, HeapDumpPath, NULL, \ | |
860 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ | |
861 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ | |
862 "in the working directory)") \ | |
863 \ | |
864 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
865 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
866 "when the heap usage is larger than this") \ | |
867 \ | |
868 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
869 "Approximate segment size when generating a segmented heap dump") \ | |
870 \ | |
871 develop(bool, BreakAtWarning, false, \ | |
872 "Execute breakpoint upon encountering VM warning") \ | |
873 \ | |
874 develop(bool, TraceVMOperation, false, \ | |
875 "Trace vm operations") \ | |
876 \ | |
877 develop(bool, UseFakeTimers, false, \ | |
878 "Tells whether the VM should use system time or a fake timer") \ | |
879 \ | |
6197 | 880 product(ccstr, NativeMemoryTracking, "off", \ |
881 "Native memory tracking options") \ | |
882 \ | |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
883 diagnostic(bool, PrintNMTStatistics, false, \ |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
884 "Print native memory tracking summary data if it is on") \ |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
885 \ |
8810
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
886 diagnostic(bool, AutoShutdownNMT, true, \ |
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
887 "Automatically shutdown native memory tracking under stress " \ |
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
888 "situation. When set to false, native memory tracking tries to " \ |
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
889 "stay alive at the expense of JVM performance") \ |
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
890 \ |
0 | 891 diagnostic(bool, LogCompilation, false, \ |
892 "Log compilation activity in detail to hotspot.log or LogFile") \ | |
893 \ | |
894 product(bool, PrintCompilation, false, \ | |
895 "Print compilations") \ | |
896 \ | |
897 diagnostic(bool, TraceNMethodInstalls, false, \ | |
898 "Trace nmethod intallation") \ | |
899 \ | |
4119
7793051af7d6
7110058: change default for ScavengeRootsInCode to 2
twisti
parents:
4065
diff
changeset
|
900 diagnostic(intx, ScavengeRootsInCode, 2, \ |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
901 "0: do not allow scavengable oops in the code cache; " \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
902 "1: allow scavenging from the code cache; " \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
903 "2: emit as many constants as the compiler can see") \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
904 \ |
0 | 905 product(bool, AlwaysRestoreFPU, false, \ |
906 "Restore the FPU control word after every JNI call (expensive)") \ | |
907 \ | |
4064
670a74b863fc
7107042: assert(no_dead_loop) failed: dead loop detected
kvn
parents:
4059
diff
changeset
|
908 diagnostic(bool, PrintCompilation2, false, \ |
0 | 909 "Print additional statistics per compilation") \ |
910 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
911 diagnostic(bool, PrintAdapterHandlers, false, \ |
0 | 912 "Print code generated for i2c/c2i adapters") \ |
913 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
914 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
915 "Verify that i2c/c2i adapters are called properly") \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
916 \ |
1207
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
917 develop(bool, VerifyAdapterSharing, false, \ |
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
918 "Verify that the code for shared adapters is the equivalent") \ |
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
919 \ |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
920 diagnostic(bool, PrintAssembly, false, \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
921 "Print assembly code (using external disassembler.so)") \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
922 \ |
370
885fe0f95828
6744783: HotSpot segfaults if given -XX options with an empty string argument
never
parents:
325
diff
changeset
|
923 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
924 "Options string passed to disassembler.so") \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
925 \ |
4561
35ca3ade314d
enabled nmethod statistics for product build
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4464
diff
changeset
|
926 product(bool, PrintNMethodStatistics, false, \ |
35ca3ade314d
enabled nmethod statistics for product build
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4464
diff
changeset
|
927 "Print a summary statistic for the generated nmethods") \ |
35ca3ade314d
enabled nmethod statistics for product build
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4464
diff
changeset
|
928 \ |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
929 diagnostic(bool, PrintNMethods, false, \ |
0 | 930 "Print assembly code for nmethods when generated") \ |
931 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
932 diagnostic(bool, PrintNativeNMethods, false, \ |
0 | 933 "Print assembly code for native nmethods when generated") \ |
934 \ | |
935 develop(bool, PrintDebugInfo, false, \ | |
936 "Print debug information for all nmethods when generated") \ | |
937 \ | |
938 develop(bool, PrintRelocations, false, \ | |
939 "Print relocation information for all nmethods when generated") \ | |
940 \ | |
941 develop(bool, PrintDependencies, false, \ | |
942 "Print dependency information for all nmethods when generated") \ | |
943 \ | |
944 develop(bool, PrintExceptionHandlers, false, \ | |
945 "Print exception handler tables for all nmethods when generated") \ | |
946 \ | |
7428
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947 develop(bool, StressCompiledExceptionHandlers, false, \ |
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948 "Exercise compiled exception handlers") \ |
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|
949 \ |
0 | 950 develop(bool, InterceptOSException, false, \ |
951 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
952 "exception happens") \ | |
953 \ | |
7595
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954 product(bool, PrintCodeCache, false, \ |
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|
955 "Print the code cache memory usage when exiting") \ |
0 | 956 \ |
957 develop(bool, PrintCodeCache2, false, \ | |
7595
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958 "Print detailed usage info on the code cache when exiting") \ |
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|
959 \ |
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960 product(bool, PrintCodeCacheOnCompilation, false, \ |
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961 "Print the code cache memory usage each time a method is compiled") \ |
0 | 962 \ |
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963 diagnostic(bool, PrintStubCode, false, \ |
0 | 964 "Print generated stub code") \ |
965 \ | |
966 product(bool, StackTraceInThrowable, true, \ | |
967 "Collect backtrace in throwable when exception happens") \ | |
968 \ | |
969 product(bool, OmitStackTraceInFastThrow, true, \ | |
970 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
971 \ | |
972 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
973 "Prints byte code statictics when dumping profiler output") \ | |
974 \ | |
975 product(bool, ProfilerRecordPC, false, \ | |
976 "Collects tick for each 16 byte interval of compiled code") \ | |
977 \ | |
1064 | 978 product(bool, ProfileVM, false, \ |
0 | 979 "Profiles ticks that fall within VM (either in the VM Thread " \ |
980 "or VM code called through stubs)") \ | |
981 \ | |
982 product(bool, ProfileIntervals, false, \ | |
983 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
984 \ | |
985 notproduct(bool, ProfilerCheckIntervals, false, \ | |
986 "Collect and print info on spacing of profiler ticks") \ | |
987 \ | |
988 develop(bool, PrintJVMWarnings, false, \ | |
989 "Prints warnings for unimplemented JVM functions") \ | |
990 \ | |
1870
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991 product(bool, PrintWarnings, true, \ |
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|
992 "Prints JVM warnings to output stream") \ |
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993 \ |
0 | 994 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
995 "Prints warnings for stalled SpinLocks") \ | |
996 \ | |
997 product(bool, RegisterFinalizersAtInit, true, \ | |
998 "Register finalizable objects at end of Object.<init> or " \ | |
1064 | 999 "after allocation") \ |
0 | 1000 \ |
1001 develop(bool, RegisterReferences, true, \ | |
1002 "Tells whether the VM should register soft/weak/final/phantom " \ | |
1003 "references") \ | |
1004 \ | |
1005 develop(bool, IgnoreRewrites, false, \ | |
1006 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
1007 "This is unsafe!") \ | |
1008 \ | |
1009 develop(bool, PrintCodeCacheExtension, false, \ | |
1010 "Print extension of code cache") \ | |
1011 \ | |
1012 develop(bool, UsePrivilegedStack, true, \ | |
1013 "Enable the security JVM functions") \ | |
1014 \ | |
1015 develop(bool, ProtectionDomainVerification, true, \ | |
1016 "Verifies protection domain before resolution in system " \ | |
1017 "dictionary") \ | |
1018 \ | |
1019 product(bool, ClassUnloading, true, \ | |
1020 "Do unloading of classes") \ | |
1021 \ | |
1022 develop(bool, DisableStartThread, false, \ | |
1023 "Disable starting of additional Java threads " \ | |
1024 "(for debugging only)") \ | |
1025 \ | |
1026 develop(bool, MemProfiling, false, \ | |
1027 "Write memory usage profiling to log file") \ | |
1028 \ | |
1029 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
1030 "Prints the system dictionary at exit") \ | |
1031 \ | |
4864
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1032 experimental(intx, PredictedLoadedClassCount, 0, \ |
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1033 "Experimental: Tune loaded class cache starting size.") \ |
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1034 \ |
0 | 1035 diagnostic(bool, UnsyncloadClass, false, \ |
514 | 1036 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
1037 "class loader must call VM synchronized for findClass " \ | |
1038 "and defineClass.") \ | |
1039 \ | |
1040 product(bool, AlwaysLockClassLoader, false, \ | |
1041 "Require the VM to acquire the class loader lock before calling " \ | |
1042 "loadClass() even for class loaders registering " \ | |
1064 | 1043 "as parallel capable") \ |
514 | 1044 \ |
1045 product(bool, AllowParallelDefineClass, false, \ | |
1046 "Allow parallel defineClass requests for class loaders " \ | |
1064 | 1047 "registering as parallel capable") \ |
514 | 1048 \ |
1049 product(bool, MustCallLoadClassInternal, false, \ | |
1064 | 1050 "Call loadClassInternal() rather than loadClass()") \ |
0 | 1051 \ |
1052 product_pd(bool, DontYieldALot, \ | |
1053 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
1054 \ | |
1055 product_pd(bool, ConvertSleepToYield, \ | |
1056 "Converts sleep(0) to thread yield " \ | |
1057 "(may be off for SOLARIS to improve GUI)") \ | |
1058 \ | |
1059 product(bool, ConvertYieldToSleep, false, \ | |
1060 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
1061 "behavior (SOLARIS only)") \ | |
1062 \ | |
1063 product(bool, UseBoundThreads, true, \ | |
1064 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
1065 \ | |
1066 develop(bool, UseDetachedThreads, true, \ | |
1067 "Use detached threads that are recycled upon termination " \ | |
1068 "(for SOLARIS only)") \ | |
1069 \ | |
1070 product(bool, UseLWPSynchronization, true, \ | |
1071 "Use LWP-based instead of libthread-based synchronization " \ | |
1072 "(SPARC only)") \ | |
1073 \ | |
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1074 product(ccstr, SyncKnobs, NULL, \ |
0 | 1075 "(Unstable) Various monitor synchronization tunables") \ |
1076 \ | |
1077 product(intx, EmitSync, 0, \ | |
1078 "(Unsafe,Unstable) " \ | |
1079 " Controls emission of inline sync fast-path code") \ | |
1080 \ | |
1587 | 1081 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
1082 \ | |
1083 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
1084 \ | |
0 | 1085 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ |
1086 \ | |
1087 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
1088 \ | |
1089 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
1090 \ | |
7587 | 1091 product(intx, hashCode, 5, \ |
0 | 1092 "(Unstable) select hashCode generation algorithm" ) \ |
1093 \ | |
1094 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
1095 "(Unstable, Linux-specific)" \ | |
1096 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
1097 \ | |
1064 | 1098 product(bool, FilterSpuriousWakeups, true, \ |
1099 "Prevent spurious or premature wakeups from object.wait " \ | |
1100 "(Solaris only)") \ | |
0 | 1101 \ |
1102 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
1103 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
1104 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
1105 \ | |
1106 develop(bool, UsePthreads, false, \ | |
1107 "Use pthread-based instead of libthread-based synchronization " \ | |
1108 "(SPARC only)") \ | |
1109 \ | |
1110 product(bool, AdjustConcurrency, false, \ | |
1111 "call thr_setconcurrency at thread create time to avoid " \ | |
1112 "LWP starvation on MP systems (For Solaris Only)") \ | |
1113 \ | |
1114 product(bool, ReduceSignalUsage, false, \ | |
1115 "Reduce the use of OS signals in Java and/or the VM") \ | |
1116 \ | |
1117 develop_pd(bool, ShareVtableStubs, \ | |
1118 "Share vtable stubs (smaller code but worse branch prediction") \ | |
1119 \ | |
1120 develop(bool, LoadLineNumberTables, true, \ | |
1121 "Tells whether the class file parser loads line number tables") \ | |
1122 \ | |
1123 develop(bool, LoadLocalVariableTables, true, \ | |
1124 "Tells whether the class file parser loads local variable tables")\ | |
1125 \ | |
1126 develop(bool, LoadLocalVariableTypeTables, true, \ | |
1127 "Tells whether the class file parser loads local variable type tables")\ | |
1128 \ | |
1129 product(bool, AllowUserSignalHandlers, false, \ | |
1130 "Do not complain if the application installs signal handlers " \ | |
1131 "(Solaris & Linux only)") \ | |
1132 \ | |
1133 product(bool, UseSignalChaining, true, \ | |
1134 "Use signal-chaining to invoke signal handlers installed " \ | |
1135 "by the application (Solaris & Linux only)") \ | |
1136 \ | |
1137 product(bool, UseAltSigs, false, \ | |
1138 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
1064 | 1139 "internal signals (Solaris only)") \ |
0 | 1140 \ |
1141 product(bool, AllowJNIEnvProxy, false, \ | |
1142 "Allow JNIEnv proxies for jdbx") \ | |
1143 \ | |
1144 product(bool, JNIDetachReleasesMonitors, true, \ | |
1145 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
1146 \ | |
1147 product(bool, RestoreMXCSROnJNICalls, false, \ | |
1148 "Restore MXCSR when returning from JNI calls") \ | |
1149 \ | |
1150 product(bool, CheckJNICalls, false, \ | |
1151 "Verify all arguments to JNI calls") \ | |
1152 \ | |
1153 product(bool, UseFastJNIAccessors, true, \ | |
1154 "Use optimized versions of Get<Primitive>Field") \ | |
1155 \ | |
1156 product(bool, EagerXrunInit, false, \ | |
1157 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
1158 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
1159 \ | |
1160 product(bool, PreserveAllAnnotations, false, \ | |
1161 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
1162 \ | |
1163 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
1164 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
1165 \ | |
1166 product(bool, LazyBootClassLoader, true, \ | |
1167 "Enable/disable lazy opening of boot class path entries") \ | |
1168 \ | |
405 | 1169 product(bool, UseXMMForArrayCopy, false, \ |
1170 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
1171 \ | |
0 | 1172 product(intx, FieldsAllocationStyle, 1, \ |
1366
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1173 "0 - type based with oops first, 1 - with oops last, " \ |
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|
1174 "2 - oops in super and sub classes are together") \ |
0 | 1175 \ |
1176 product(bool, CompactFields, true, \ | |
1177 "Allocate nonstatic fields in gaps between previous fields") \ | |
1178 \ | |
1179 notproduct(bool, PrintCompactFieldsSavings, false, \ | |
1180 "Print how many words were saved with CompactFields") \ | |
1181 \ | |
7587 | 1182 notproduct(bool, PrintFieldLayout, false, \ |
1183 "Print field layout for each class") \ | |
1184 \ | |
1185 product(intx, ContendedPaddingWidth, 128, \ | |
1186 "How many bytes to pad the fields/classes marked @Contended with")\ | |
1187 \ | |
1188 product(bool, EnableContended, true, \ | |
1189 "Enable @Contended annotation support") \ | |
1190 \ | |
1191 product(bool, RestrictContended, true, \ | |
1192 "Restrict @Contended to trusted classes") \ | |
1193 \ | |
0 | 1194 product(bool, UseBiasedLocking, true, \ |
1195 "Enable biased locking in JVM") \ | |
1196 \ | |
1197 product(intx, BiasedLockingStartupDelay, 4000, \ | |
1198 "Number of milliseconds to wait before enabling biased locking") \ | |
1199 \ | |
1200 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
1201 "Print statistics of biased locking in JVM") \ | |
1202 \ | |
1203 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
1204 "Threshold of number of revocations per type to try to " \ | |
1205 "rebias all objects in the heap of that type") \ | |
1206 \ | |
1207 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
1208 "Threshold of number of revocations per type to permanently " \ | |
1209 "revoke biases of all objects in the heap of that type") \ | |
1210 \ | |
1211 product(intx, BiasedLockingDecayTime, 25000, \ | |
1212 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
1213 "type after previous bulk rebias") \ | |
1214 \ | |
1215 /* tracing */ \ | |
1216 \ | |
1217 notproduct(bool, TraceRuntimeCalls, false, \ | |
1218 "Trace run-time calls") \ | |
1219 \ | |
1220 develop(bool, TraceJNICalls, false, \ | |
1221 "Trace JNI calls") \ | |
1222 \ | |
1223 notproduct(bool, TraceJVMCalls, false, \ | |
1224 "Trace JVM calls") \ | |
1225 \ | |
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1226 product(ccstr, TraceJVMTI, NULL, \ |
0 | 1227 "Trace flags for JVMTI functions and events") \ |
1228 \ | |
1229 /* This option can change an EMCP method into an obsolete method. */ \ | |
1230 /* This can affect tests that except specific methods to be EMCP. */ \ | |
1231 /* This option should be used with caution. */ \ | |
1232 product(bool, StressLdcRewrite, false, \ | |
1233 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
1234 \ | |
1235 product(intx, TraceRedefineClasses, 0, \ | |
1236 "Trace level for JVMTI RedefineClasses") \ | |
1237 \ | |
1574 | 1238 develop(bool, StressMethodComparator, false, \ |
1239 "run the MethodComparator on all loaded methods") \ | |
1240 \ | |
0 | 1241 /* change to false by default sometime after Mustang */ \ |
1242 product(bool, VerifyMergedCPBytecodes, true, \ | |
1243 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
1244 \ | |
1245 develop(bool, TraceJNIHandleAllocation, false, \ | |
1246 "Trace allocation/deallocation of JNI handle blocks") \ | |
1247 \ | |
1248 develop(bool, TraceThreadEvents, false, \ | |
1249 "Trace all thread events") \ | |
1250 \ | |
1251 develop(bool, TraceBytecodes, false, \ | |
1252 "Trace bytecode execution") \ | |
1253 \ | |
1254 develop(bool, TraceClassInitialization, false, \ | |
1255 "Trace class initialization") \ | |
1256 \ | |
1257 develop(bool, TraceExceptions, false, \ | |
1258 "Trace exceptions") \ | |
1259 \ | |
1260 develop(bool, TraceICs, false, \ | |
1261 "Trace inline cache changes") \ | |
1262 \ | |
1263 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
1264 "Trace method invocation counter overflow") \ | |
1265 \ | |
1266 develop(bool, TraceInlineCacheClearing, false, \ | |
1267 "Trace clearing of inline caches in nmethods") \ | |
1268 \ | |
1269 develop(bool, TraceDependencies, false, \ | |
1270 "Trace dependencies") \ | |
1271 \ | |
1272 develop(bool, VerifyDependencies, trueInDebug, \ | |
1273 "Exercise and verify the compilation dependency mechanism") \ | |
1274 \ | |
1275 develop(bool, TraceNewOopMapGeneration, false, \ | |
1276 "Trace OopMapGeneration") \ | |
1277 \ | |
1278 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
1279 "Trace OopMapGeneration: print detailed cell states") \ | |
1280 \ | |
1281 develop(bool, TimeOopMap, false, \ | |
1282 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
1283 \ | |
1284 develop(bool, TimeOopMap2, false, \ | |
1285 "Time calls to GenerateOopMap::compute_map() individually") \ | |
1286 \ | |
1287 develop(bool, TraceMonitorMismatch, false, \ | |
1288 "Trace monitor matching failures during OopMapGeneration") \ | |
1289 \ | |
1290 develop(bool, TraceOopMapRewrites, false, \ | |
1291 "Trace rewritting of method oops during oop map generation") \ | |
1292 \ | |
1293 develop(bool, TraceSafepoint, false, \ | |
1294 "Trace safepoint operations") \ | |
1295 \ | |
1296 develop(bool, TraceICBuffer, false, \ | |
1297 "Trace usage of IC buffer") \ | |
1298 \ | |
1299 develop(bool, TraceCompiledIC, false, \ | |
1300 "Trace changes of compiled IC") \ | |
1301 \ | |
1302 notproduct(bool, TraceZapDeadLocals, false, \ | |
1303 "Trace zapping dead locals") \ | |
1304 \ | |
1305 develop(bool, TraceStartupTime, false, \ | |
1306 "Trace setup time") \ | |
1307 \ | |
1308 develop(bool, TraceProtectionDomainVerification, false, \ | |
1309 "Trace protection domain verifcation") \ | |
1310 \ | |
1311 develop(bool, TraceClearedExceptions, false, \ | |
1312 "Prints when an exception is forcibly cleared") \ | |
1313 \ | |
1314 product(bool, TraceClassResolution, false, \ | |
1315 "Trace all constant pool resolutions (for debugging)") \ | |
1316 \ | |
1317 product(bool, TraceBiasedLocking, false, \ | |
1318 "Trace biased locking in JVM") \ | |
1319 \ | |
1320 product(bool, TraceMonitorInflation, false, \ | |
1321 "Trace monitor inflation in JVM") \ | |
1322 \ | |
1323 /* gc */ \ | |
1324 \ | |
1325 product(bool, UseSerialGC, false, \ | |
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1326 "Use the serial garbage collector") \ |
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1327 \ |
1193
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1328 product(bool, UseG1GC, false, \ |
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1329 "Use the Garbage-First garbage collector") \ |
0 | 1330 \ |
1331 product(bool, UseParallelGC, false, \ | |
1332 "Use the Parallel Scavenge garbage collector") \ | |
1333 \ | |
1334 product(bool, UseParallelOldGC, false, \ | |
1335 "Use the Parallel Old garbage collector") \ | |
1336 \ | |
1337 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
1338 "How often should we maximally compact the heap (not allowing " \ | |
1339 "any dead space)") \ | |
1340 \ | |
1341 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
1342 "The collection count for the first maximum compaction") \ | |
1343 \ | |
1344 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
1345 "In the Parallel Old garbage collector maximum compaction for " \ | |
1346 "a system GC") \ | |
1347 \ | |
1348 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
1349 "The mean used by the par compact dead wood" \ | |
1350 "limiter (a number between 0-100).") \ | |
1351 \ | |
1352 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
1353 "The standard deviation used by the par compact dead wood" \ | |
1354 "limiter (a number between 0-100).") \ | |
1355 \ | |
1356 product(uintx, ParallelGCThreads, 0, \ | |
1357 "Number of parallel threads parallel gc will use") \ | |
1358 \ | |
4095
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1359 product(bool, UseDynamicNumberOfGCThreads, false, \ |
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|
1360 "Dynamically choose the number of parallel threads " \ |
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|
1361 "parallel gc will use") \ |
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|
1362 \ |
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1363 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
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1364 "Force dynamic selection of the number of" \ |
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1365 "parallel threads parallel gc will use to aid debugging") \ |
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1366 \ |
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|
1367 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
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diff
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|
1368 "Size of heap (bytes) per GC thread used in calculating the " \ |
bca17e38de00
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diff
changeset
|
1369 "number of GC threads") \ |
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6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
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diff
changeset
|
1370 \ |
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|
1371 product(bool, TraceDynamicGCThreads, false, \ |
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diff
changeset
|
1372 "Trace the dynamic GC thread usage") \ |
bca17e38de00
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4067
diff
changeset
|
1373 \ |
483
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481
diff
changeset
|
1374 develop(bool, ParallelOldGCSplitALot, false, \ |
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481
diff
changeset
|
1375 "Provoke splitting (copying data from a young gen space to" \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1376 "multiple destination spaces)") \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1377 \ |
0f773163217d
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jcoomes
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481
diff
changeset
|
1378 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
0f773163217d
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diff
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|
1379 "How often to provoke splitting a young gen space") \ |
0 | 1380 \ |
1284 | 1381 product(uintx, ConcGCThreads, 0, \ |
1382 "Number of threads concurrent gc will use") \ | |
342
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diff
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|
1383 \ |
0 | 1384 product(uintx, YoungPLABSize, 4096, \ |
1385 "Size of young gen promotion labs (in HeapWords)") \ | |
1386 \ | |
1387 product(uintx, OldPLABSize, 1024, \ | |
1388 "Size of old gen promotion labs (in HeapWords)") \ | |
1389 \ | |
1390 product(uintx, GCTaskTimeStampEntries, 200, \ | |
1391 "Number of time stamp entries per gc worker thread") \ | |
1392 \ | |
1393 product(bool, AlwaysTenure, false, \ | |
1394 "Always tenure objects in eden. (ParallelGC only)") \ | |
1395 \ | |
1396 product(bool, NeverTenure, false, \ | |
1064 | 1397 "Never tenure objects in eden, May tenure on overflow " \ |
1398 "(ParallelGC only)") \ | |
0 | 1399 \ |
1400 product(bool, ScavengeBeforeFullGC, true, \ | |
1064 | 1401 "Scavenge youngest generation before each full GC, " \ |
1402 "used with UseParallelGC") \ | |
0 | 1403 \ |
1404 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
1405 "Allow scavenges to occur when to_space contains objects.") \ | |
1406 \ | |
1407 product(bool, UseConcMarkSweepGC, false, \ | |
1408 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
1409 \ | |
1410 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
1411 "A System.gc() request invokes a concurrent collection;" \ | |
1412 " (effective only when UseConcMarkSweepGC)") \ | |
1413 \ | |
1414 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
1064 | 1415 "A System.gc() request invokes a concurrent collection and " \ |
1416 "also unloads classes during such a concurrent gc cycle " \ | |
1417 "(effective only when UseConcMarkSweepGC)") \ | |
0 | 1418 \ |
1520
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diff
changeset
|
1419 product(bool, GCLockerInvokesConcurrent, false, \ |
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1518
diff
changeset
|
1420 "The exit of a JNI CS necessitating a scavenge also" \ |
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
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1518
diff
changeset
|
1421 " kicks off a bkgrd concurrent collection") \ |
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
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1518
diff
changeset
|
1422 \ |
1991
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
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diff
changeset
|
1423 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
016a3628c885
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tonyp
parents:
1972
diff
changeset
|
1424 "How much the GC can expand the eden by while the GC locker " \ |
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
1972
diff
changeset
|
1425 "is active (as a percentage)") \ |
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
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diff
changeset
|
1426 \ |
8853
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7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
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diff
changeset
|
1427 diagnostic(intx, GCLockerRetryAllocationCount, 2, \ |
2e093b564241
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mgerdin
parents:
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diff
changeset
|
1428 "Number of times to retry allocations when" \ |
2e093b564241
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mgerdin
parents:
8706
diff
changeset
|
1429 " blocked by the GC locker") \ |
2e093b564241
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changeset
|
1430 \ |
0 | 1431 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
1432 "Use Adaptive Free Lists in the CMS generation") \ | |
1433 \ | |
1434 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
1435 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
1436 \ | |
1437 develop(bool, RotateCMSCollectionTypes, false, \ | |
1438 "Rotate the CMS collections among concurrent and STW") \ | |
1439 \ | |
1440 product(bool, UseCMSBestFit, true, \ | |
1441 "Use CMS best fit allocation strategy") \ | |
1442 \ | |
1443 product(bool, UseCMSCollectionPassing, true, \ | |
1444 "Use passing of collection from background to foreground") \ | |
1445 \ | |
1446 product(bool, UseParNewGC, false, \ | |
1447 "Use parallel threads in the new generation.") \ | |
1448 \ | |
1449 product(bool, ParallelGCVerbose, false, \ | |
1450 "Verbose output for parallel GC.") \ | |
1451 \ | |
1452 product(intx, ParallelGCBufferWastePct, 10, \ | |
1453 "wasted fraction of parallel allocation buffer.") \ | |
1454 \ | |
3357
fc2b798ab316
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3325
diff
changeset
|
1455 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1456 "Retain parallel allocation buffers across scavenges; " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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3325
diff
changeset
|
1457 " -- disabled because this currently conflicts with " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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3325
diff
changeset
|
1458 " parallel card scanning under certain conditions ") \ |
0 | 1459 \ |
1460 product(intx, TargetPLABWastePct, 10, \ | |
1461 "target wasted space in last buffer as pct of overall allocation")\ | |
1462 \ | |
1463 product(uintx, PLABWeight, 75, \ | |
1464 "Percentage (0-100) used to weight the current sample when" \ | |
1465 "computing exponentially decaying average for ResizePLAB.") \ | |
1466 \ | |
1467 product(bool, ResizePLAB, true, \ | |
1468 "Dynamically resize (survivor space) promotion labs") \ | |
1469 \ | |
1470 product(bool, PrintPLAB, false, \ | |
1471 "Print (survivor space) promotion labs sizing decisions") \ | |
1472 \ | |
1473 product(intx, ParGCArrayScanChunk, 50, \ | |
1474 "Scan a subset and push remainder, if array is bigger than this") \ | |
1475 \ | |
695 | 1476 product(bool, ParGCUseLocalOverflow, false, \ |
1477 "Instead of a global overflow list, use local overflow stacks") \ | |
1478 \ | |
679
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6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
ysr
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diff
changeset
|
1479 product(bool, ParGCTrimOverflow, true, \ |
695 | 1480 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
679
cea947c8a988
6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
ysr
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647
diff
changeset
|
1481 \ |
534 | 1482 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
1483 "Whether we should simulate work queue overflow in ParNew") \ | |
1484 \ | |
1485 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
1064 | 1486 "An `interval' counter that determines how frequently " \ |
1487 "we simulate overflow; a smaller number increases frequency") \ | |
534 | 1488 \ |
1489 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
0 | 1490 "The desired number of objects to claim from the overflow list") \ |
1491 \ | |
4728
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7121618: Change type of number of GC workers to unsigned int.
jmasa
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4125
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changeset
|
1492 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
3357
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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diff
changeset
|
1493 "The number of strides per worker thread that we divide up the " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1494 "card table scanning work into") \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
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diff
changeset
|
1495 \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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3325
diff
changeset
|
1496 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1497 "The number of cards in each chunk of the parallel chunks used " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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3325
diff
changeset
|
1498 "during card table scanning") \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
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diff
changeset
|
1499 \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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3325
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|
1500 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
0 | 1501 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
1502 "parallel GC.") \ | |
1503 \ | |
1145
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1504 product(uintx, OldPLABWeight, 50, \ |
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|
1505 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
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diff
changeset
|
1506 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
e018e6884bd8
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|
1507 \ |
e018e6884bd8
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changeset
|
1508 product(bool, ResizeOldPLAB, true, \ |
e018e6884bd8
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changeset
|
1509 "Dynamically resize (old gen) promotion labs") \ |
e018e6884bd8
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diff
changeset
|
1510 \ |
e018e6884bd8
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diff
changeset
|
1511 product(bool, PrintOldPLAB, false, \ |
e018e6884bd8
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diff
changeset
|
1512 "Print (old gen) promotion labs sizing decisions") \ |
e018e6884bd8
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changeset
|
1513 \ |
e018e6884bd8
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|
1514 product(uintx, CMSOldPLABMin, 16, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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|
1515 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
e018e6884bd8
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changeset
|
1516 \ |
e018e6884bd8
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changeset
|
1517 product(uintx, CMSOldPLABMax, 1024, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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diff
changeset
|
1518 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
e018e6884bd8
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diff
changeset
|
1519 \ |
e018e6884bd8
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ysr
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diff
changeset
|
1520 product(uintx, CMSOldPLABNumRefills, 4, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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diff
changeset
|
1521 "Nominal number of refills of CMS gen promotion lab cache" \ |
e018e6884bd8
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diff
changeset
|
1522 " per worker per block size") \ |
e018e6884bd8
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ysr
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diff
changeset
|
1523 \ |
e018e6884bd8
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diff
changeset
|
1524 product(bool, CMSOldPLABResizeQuicker, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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1064
diff
changeset
|
1525 "Whether to react on-the-fly during a scavenge to a sudden" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1526 " change in block demand rate") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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parents:
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diff
changeset
|
1527 \ |
e018e6884bd8
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changeset
|
1528 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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changeset
|
1529 "The tolerance of the phase-change detector for on-the-fly" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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1064
diff
changeset
|
1530 " PLAB resizing during a scavenge") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1531 \ |
e018e6884bd8
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ysr
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changeset
|
1532 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
e018e6884bd8
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changeset
|
1533 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
e018e6884bd8
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changeset
|
1534 " during a scavenge") \ |
e018e6884bd8
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changeset
|
1535 \ |
0 | 1536 product(bool, AlwaysPreTouch, false, \ |
1537 "It forces all freshly committed pages to be pre-touched.") \ | |
1538 \ | |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
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diff
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|
1539 product_pd(intx, CMSYoungGenPerWorker, \ |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
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diff
changeset
|
1540 "The maximum size of young gen chosen by default per GC worker " \ |
1064 | 1541 "thread available") \ |
0 | 1542 \ |
1543 product(bool, CMSIncrementalMode, false, \ | |
1544 "Whether CMS GC should operate in \"incremental\" mode") \ | |
1545 \ | |
1546 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
1547 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
1548 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
1549 "value") \ | |
1550 \ | |
1551 product(bool, CMSIncrementalPacing, true, \ | |
1552 "Whether the CMS incremental mode duty cycle should be " \ | |
1553 "automatically adjusted") \ | |
1554 \ | |
1555 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
1064 | 1556 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
1557 "enabled (a percentage, 0-100)") \ | |
0 | 1558 \ |
1559 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
1064 | 1560 "Percentage (0-100) used to add conservatism when computing the " \ |
1561 "duty cycle") \ | |
0 | 1562 \ |
1563 product(uintx, CMSIncrementalOffset, 0, \ | |
1564 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
1064 | 1565 " is shifted to the right within the period between young GCs") \ |
0 | 1566 \ |
1145
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|
1567 product(uintx, CMSExpAvgFactor, 50, \ |
e018e6884bd8
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1064
diff
changeset
|
1568 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
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ysr
parents:
1064
diff
changeset
|
1569 "computing exponential averages for CMS statistics.") \ |
e018e6884bd8
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ysr
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changeset
|
1570 \ |
e018e6884bd8
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changeset
|
1571 product(uintx, CMS_FLSWeight, 75, \ |
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changeset
|
1572 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
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changeset
|
1573 "computing exponentially decating averages for CMS FLS statistics.") \ |
e018e6884bd8
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changeset
|
1574 \ |
e018e6884bd8
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changeset
|
1575 product(uintx, CMS_FLSPadding, 1, \ |
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changeset
|
1576 "The multiple of deviation from mean to use for buffering" \ |
0 | 1577 "against volatility in free list demand.") \ |
1578 \ | |
1579 product(uintx, FLSCoalescePolicy, 2, \ | |
1580 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
1581 \ | |
1145
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changeset
|
1582 product(bool, FLSAlwaysCoalesceLarge, false, \ |
e018e6884bd8
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changeset
|
1583 "CMS: Larger free blocks are always available for coalescing") \ |
e018e6884bd8
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ysr
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changeset
|
1584 \ |
e018e6884bd8
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changeset
|
1585 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
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changeset
|
1586 "CMS: the smaller the percentage the greater the coalition force")\ |
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changeset
|
1587 \ |
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1588 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
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1589 "CMS: the factor by which to inflate estimated demand of small" \ |
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1590 " block sizes to prevent coalescing with an adjoining block") \ |
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1591 \ |
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1592 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
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1593 "CMS: the factor by which to inflate estimated demand of large" \ |
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1594 " block sizes to prevent coalescing with an adjoining block") \ |
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1595 \ |
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1596 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
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1597 "CMS: the factor by which to inflate estimated demand of small" \ |
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1598 " block sizes to prevent splitting to supply demand for smaller" \ |
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1599 " blocks") \ |
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1600 \ |
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1601 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
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1602 "CMS: the factor by which to inflate estimated demand of large" \ |
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1603 " block sizes to prevent splitting to supply demand for smaller" \ |
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1604 " blocks") \ |
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1605 \ |
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1606 product(bool, CMSExtrapolateSweep, false, \ |
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1607 "CMS: cushion for block demand during sweep") \ |
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1608 \ |
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1609 product(uintx, CMS_SweepWeight, 75, \ |
1064 | 1610 "Percentage (0-100) used to weight the current sample when " \ |
1611 "computing exponentially decaying average for inter-sweep " \ | |
1612 "duration") \ | |
0 | 1613 \ |
1145
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1614 product(uintx, CMS_SweepPadding, 1, \ |
1064 | 1615 "The multiple of deviation from mean to use for buffering " \ |
0 | 1616 "against volatility in inter-sweep duration.") \ |
1617 \ | |
1618 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
1619 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
1064 | 1620 "duration exceeds this threhold in milliseconds") \ |
0 | 1621 \ |
1622 develop(bool, CMSTraceIncrementalMode, false, \ | |
1623 "Trace CMS incremental mode") \ | |
1624 \ | |
1625 develop(bool, CMSTraceIncrementalPacing, false, \ | |
1626 "Trace CMS incremental mode pacing computation") \ | |
1627 \ | |
1628 develop(bool, CMSTraceThreadState, false, \ | |
1629 "Trace the CMS thread state (enable the trace_state() method)") \ | |
1630 \ | |
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1631 product(bool, CMSClassUnloadingEnabled, true, \ |
0 | 1632 "Whether class unloading enabled when using CMS GC") \ |
1633 \ | |
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1634 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
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1635 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
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1636 " for which classes may not be unloaded") \ |
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1637 \ |
0 | 1638 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
1639 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
1640 \ | |
1641 product(bool, UseCMSCompactAtFullCollection, true, \ | |
1642 "Use mark sweep compact at full collections") \ | |
1643 \ | |
1644 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
1645 "Number of CMS full collection done before compaction if > 0") \ | |
1646 \ | |
1647 develop(intx, CMSDictionaryChoice, 0, \ | |
1648 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
1649 \ | |
1650 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
6818 | 1651 "Replenish an indexed free list with this number of chunks") \ |
0 | 1652 \ |
1145
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1653 product(bool, CMSReplenishIntermediate, true, \ |
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1654 "Replenish all intermediate free-list caches") \ |
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1655 \ |
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1656 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
1777
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1657 "When satisfying batched demand, split blocks from the " \ |
1145
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1658 "IndexedFreeList whose size is a multiple of requested size") \ |
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1659 \ |
0 | 1660 product(bool, CMSLoopWarn, false, \ |
1661 "Warn in case of excessive CMS looping") \ | |
1662 \ | |
1663 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
1664 "Whether preserved marks should be restored early") \ | |
1665 \ | |
1284 | 1666 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
1667 "Size of marking stack") \ | |
1668 \ | |
1669 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
1670 "Max size of marking stack") \ | |
0 | 1671 \ |
1672 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
1673 "Whether we should simulate frequent marking stack / work queue" \ | |
1674 " overflow") \ | |
1675 \ | |
534 | 1676 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
1677 "An `interval' counter that determines how frequently" \ | |
0 | 1678 " we simulate overflow; a smaller number increases frequency") \ |
1679 \ | |
1680 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
1681 "(Temporary, subject to experimentation)" \ | |
1682 "Maximum number of abortable preclean iterations, if > 0") \ | |
1683 \ | |
1684 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
1685 "(Temporary, subject to experimentation)" \ | |
1686 "Maximum time in abortable preclean in ms") \ | |
1687 \ | |
1688 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
1689 "(Temporary, subject to experimentation)" \ | |
1690 "Nominal minimum work per abortable preclean iteration") \ | |
1691 \ | |
1887
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1692 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
0 | 1693 "(Temporary, subject to experimentation)" \ |
1694 " Time that we sleep between iterations when not given" \ | |
1695 " enough work per iteration") \ | |
1696 \ | |
1697 product(uintx, CMSRescanMultiple, 32, \ | |
1698 "Size (in cards) of CMS parallel rescan task") \ | |
1699 \ | |
1700 product(uintx, CMSConcMarkMultiple, 32, \ | |
1701 "Size (in cards) of CMS concurrent MT marking task") \ | |
1702 \ | |
1703 product(bool, CMSAbortSemantics, false, \ | |
1704 "Whether abort-on-overflow semantics is implemented") \ | |
1705 \ | |
1706 product(bool, CMSParallelRemarkEnabled, true, \ | |
1707 "Whether parallel remark enabled (only if ParNewGC)") \ | |
1708 \ | |
1709 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
1710 "Whether parallel remark of survivor space" \ | |
1711 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
1712 \ | |
1713 product(bool, CMSPLABRecordAlways, true, \ | |
1714 "Whether to always record survivor space PLAB bdries" \ | |
1715 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
1716 \ | |
1717 product(bool, CMSConcurrentMTEnabled, true, \ | |
1718 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
1719 \ | |
1720 product(bool, CMSPrecleaningEnabled, true, \ | |
1721 "Whether concurrent precleaning enabled") \ | |
1722 \ | |
1723 product(uintx, CMSPrecleanIter, 3, \ | |
1724 "Maximum number of precleaning iteration passes") \ | |
1725 \ | |
1726 product(uintx, CMSPrecleanNumerator, 2, \ | |
1727 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1728 " ratio") \ | |
1729 \ | |
1730 product(uintx, CMSPrecleanDenominator, 3, \ | |
1731 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1732 " ratio") \ | |
1733 \ | |
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1734 product(bool, CMSPrecleanRefLists1, true, \ |
0 | 1735 "Preclean ref lists during (initial) preclean phase") \ |
1736 \ | |
1737 product(bool, CMSPrecleanRefLists2, false, \ | |
1738 "Preclean ref lists during abortable preclean phase") \ | |
1739 \ | |
1740 product(bool, CMSPrecleanSurvivors1, false, \ | |
1741 "Preclean survivors during (initial) preclean phase") \ | |
1742 \ | |
1743 product(bool, CMSPrecleanSurvivors2, true, \ | |
1744 "Preclean survivors during abortable preclean phase") \ | |
1745 \ | |
1746 product(uintx, CMSPrecleanThreshold, 1000, \ | |
1747 "Don't re-iterate if #dirty cards less than this") \ | |
1748 \ | |
1749 product(bool, CMSCleanOnEnter, true, \ | |
1750 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
1751 \ | |
1752 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
1753 "Choose variant (1,2) of verification following remark") \ | |
1754 \ | |
1755 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
1756 "If Eden used is below this value, don't try to schedule remark") \ | |
1757 \ | |
1758 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
1759 "The Eden occupancy % at which to try and schedule remark pause") \ | |
1760 \ | |
1761 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
1762 "Start sampling Eden top at least before yg occupancy reaches" \ | |
1763 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
1764 \ | |
1765 product(uintx, CMSSamplingGrain, 16*K, \ | |
1766 "The minimum distance between eden samples for CMS (see above)") \ | |
1767 \ | |
1768 product(bool, CMSScavengeBeforeRemark, false, \ | |
1769 "Attempt scavenge before the CMS remark step") \ | |
1770 \ | |
1771 develop(bool, CMSTraceSweeper, false, \ | |
1772 "Trace some actions of the CMS sweeper") \ | |
1773 \ | |
1774 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
1775 "Don't drain below this size per parallel worker/thief") \ | |
1776 \ | |
1887
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1777 manageable(intx, CMSWaitDuration, 2000, \ |
0 | 1778 "Time in milliseconds that CMS thread waits for young GC") \ |
1779 \ | |
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1780 develop(uintx, CMSCheckInterval, 1000, \ |
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1781 "Interval in milliseconds that CMS thread checks if it " \ |
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1782 "should start a collection cycle") \ |
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1783 \ |
0 | 1784 product(bool, CMSYield, true, \ |
1785 "Yield between steps of concurrent mark & sweep") \ | |
1786 \ | |
1787 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
1788 "Bitmap operations should process at most this many bits" \ | |
1789 "between yields") \ | |
1790 \ | |
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1791 product(bool, CMSDumpAtPromotionFailure, false, \ |
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1792 "Dump useful information about the state of the CMS old " \ |
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1793 " generation upon a promotion failure.") \ |
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1794 \ |
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1795 product(bool, CMSPrintChunksInDump, false, \ |
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1796 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1797 " more detailed information about the free chunks.") \ |
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1798 \ |
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1799 product(bool, CMSPrintObjectsInDump, false, \ |
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1800 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1801 " more detailed information about the allocated objects.") \ |
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1802 \ |
0 | 1803 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
1804 "Verify that all refs across the FLS boundary " \ | |
1805 " are to valid objects") \ | |
1806 \ | |
1807 diagnostic(bool, FLSVerifyLists, false, \ | |
1808 "Do lots of (expensive) FreeListSpace verification") \ | |
1809 \ | |
1810 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
1811 "Do lots of (expensive) FLS index table verification") \ | |
1812 \ | |
1813 develop(bool, FLSVerifyDictionary, false, \ | |
1814 "Do lots of (expensive) FLS dictionary verification") \ | |
1815 \ | |
1816 develop(bool, VerifyBlockOffsetArray, false, \ | |
1817 "Do (expensive!) block offset array verification") \ | |
1818 \ | |
3321
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1819 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
0 | 1820 "Maintain _unallocated_block in BlockOffsetArray" \ |
1821 " (currently applicable only to CMS collector)") \ | |
1822 \ | |
1823 develop(bool, TraceCMSState, false, \ | |
1824 "Trace the state of the CMS collection") \ | |
1825 \ | |
1826 product(intx, RefDiscoveryPolicy, 0, \ | |
1827 "Whether reference-based(0) or referent-based(1)") \ | |
1828 \ | |
1829 product(bool, ParallelRefProcEnabled, false, \ | |
1830 "Enable parallel reference processing whenever possible") \ | |
1831 \ | |
1832 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
1833 "Enable balancing of reference processing queues") \ | |
1834 \ | |
8035 | 1835 product(uintx, CMSTriggerRatio, 80, \ |
0 | 1836 "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
1064 | 1837 "allocated before a CMS collection cycle commences") \ |
0 | 1838 \ |
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1839 product(uintx, CMSBootstrapOccupancy, 50, \ |
0 | 1840 "Percentage CMS generation occupancy at which to " \ |
1064 | 1841 "initiate CMS collection for bootstrapping collection stats") \ |
0 | 1842 \ |
1843 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
1844 "Percentage CMS generation occupancy to start a CMS collection " \ | |
1064 | 1845 "cycle. A negative value means that CMSTriggerRatio is used") \ |
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1846 \ |
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1847 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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1848 "Percentage of the (entire) heap occupancy to start a " \ |
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1849 "concurrent GC cycle. It is used by GCs that trigger a " \ |
1283
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1850 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1851 "not just one of the generations (e.g., G1). A value of 0 " \ |
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1852 "denotes 'do constant GC cycles'.") \ |
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1853 \ |
0 | 1854 product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
1855 "Only use occupancy as a crierion for starting a CMS collection") \ | |
1856 \ | |
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1857 product(intx, CMSIsTooFullPercentage, 98, \ |
1064 | 1858 "An absolute ceiling above which CMS will always consider the " \ |
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1859 "unloading of classes when class unloading is enabled") \ |
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1860 \ |
0 | 1861 develop(bool, CMSTestInFreeList, false, \ |
1862 "Check if the coalesced range is already in the " \ | |
1064 | 1863 "free lists as claimed") \ |
0 | 1864 \ |
1865 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
1866 "Check that all the garbage collected was returned to the " \ | |
1867 "free lists.") \ | |
1868 \ | |
1869 notproduct(bool, ScavengeALot, false, \ | |
1870 "Force scavenge at every Nth exit from the runtime system " \ | |
1871 "(N=ScavengeALotInterval)") \ | |
1872 \ | |
1873 develop(bool, FullGCALot, false, \ | |
1874 "Force full gc at every Nth exit from the runtime system " \ | |
1875 "(N=FullGCALotInterval)") \ | |
1876 \ | |
1877 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
1878 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
1879 \ | |
1145
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1880 product(bool, PrintPromotionFailure, false, \ |
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1881 "Print additional diagnostic information following " \ |
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1882 " promotion failure") \ |
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1883 \ |
0 | 1884 notproduct(bool, PromotionFailureALot, false, \ |
1885 "Use promotion failure handling on every youngest generation " \ | |
1886 "collection") \ | |
1887 \ | |
1888 develop(uintx, PromotionFailureALotCount, 1000, \ | |
1889 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
1890 "refill attempts (ParNew) or promotion attempts " \ | |
1891 "(other young collectors) ") \ | |
1892 \ | |
1893 develop(uintx, PromotionFailureALotInterval, 5, \ | |
1894 "Total collections between promotion failures alot") \ | |
1895 \ | |
1837
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1896 experimental(intx, WorkStealingSleepMillis, 1, \ |
0 | 1897 "Sleep time when sleep is used for yields") \ |
1898 \ | |
2430 | 1899 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
0 | 1900 "Number of yields before a sleep is done during workstealing") \ |
1901 \ | |
1837
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1902 experimental(uintx, WorkStealingHardSpins, 4096, \ |
546
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1903 "Number of iterations in a spin loop between checks on " \ |
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|
1904 "time out of hard spin") \ |
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1905 \ |
1837
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|
1906 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
546
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1907 "Ratio of hard spins to calls to yield") \ |
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|
1908 \ |
1311
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|
1909 develop(uintx, ObjArrayMarkingStride, 512, \ |
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|
1910 "Number of ObjArray elements to push onto the marking stack" \ |
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|
1911 "before pushing a continuation entry") \ |
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diff
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|
1912 \ |
6725
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1913 develop(bool, MetadataAllocationFailALot, false, \ |
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1914 "Fail metadata allocations at intervals controlled by " \ |
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1915 "MetadataAllocationFailALotInterval") \ |
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1916 \ |
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1917 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ |
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|
1918 "metadata allocation failure alot interval") \ |
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|
1919 \ |
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1920 develop(bool, MetaDataDeallocateALot, false, \ |
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|
1921 "Deallocation bunches of metadata at intervals controlled by " \ |
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1922 "MetaDataAllocateALotInterval") \ |
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|
1923 \ |
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|
1924 develop(uintx, MetaDataDeallocateALotInterval, 100, \ |
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|
1925 "Metadata deallocation alot interval") \ |
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|
1926 \ |
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|
1927 develop(bool, TraceMetadataChunkAllocation, false, \ |
7461
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diff
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|
1928 "Trace chunk metadata allocations") \ |
6725
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|
1929 \ |
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|
1930 product(bool, TraceMetadataHumongousAllocation, false, \ |
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|
1931 "Trace humongous metadata allocations") \ |
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|
1932 \ |
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|
1933 develop(bool, TraceMetavirtualspaceAllocation, false, \ |
7461
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|
1934 "Trace virtual space metadata allocations") \ |
6725
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|
1935 \ |
3779 | 1936 notproduct(bool, ExecuteInternalVMTests, false, \ |
1937 "Enable execution of internal VM tests.") \ | |
1938 \ | |
0 | 1939 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
1940 \ | |
1941 product_pd(bool, ResizeTLAB, \ | |
1942 "Dynamically resize tlab size for threads") \ | |
1943 \ | |
1944 product(bool, ZeroTLAB, false, \ | |
1945 "Zero out the newly created TLAB") \ | |
1946 \ | |
342
37f87013dfd8
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142
diff
changeset
|
1947 product(bool, FastTLABRefill, true, \ |
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parents:
142
diff
changeset
|
1948 "Use fast TLAB refill code") \ |
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diff
changeset
|
1949 \ |
0 | 1950 product(bool, PrintTLAB, false, \ |
1951 "Print various TLAB related information") \ | |
1952 \ | |
1953 product(bool, TLABStats, true, \ | |
1954 "Print various TLAB related information") \ | |
1955 \ | |
2192
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bobv
parents:
2177
diff
changeset
|
1956 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
b92c45f2bc75
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bobv
parents:
2177
diff
changeset
|
1957 "Enable LowMemoryProtection")) \ |
b92c45f2bc75
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parents:
2177
diff
changeset
|
1958 \ |
0 | 1959 product_pd(bool, NeverActAsServerClassMachine, \ |
1960 "Never act like a server-class machine") \ | |
1961 \ | |
1962 product(bool, AlwaysActAsServerClassMachine, false, \ | |
1963 "Always act like a server-class machine") \ | |
1964 \ | |
1064 | 1965 product_pd(uint64_t, MaxRAM, \ |
1966 "Real memory size (in bytes) used to set maximum heap size") \ | |
1967 \ | |
1968 product(uintx, ErgoHeapSizeLimit, 0, \ | |
1969 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
1970 "MaxRAM / MaxRAMFraction") \ | |
1971 \ | |
1972 product(uintx, MaxRAMFraction, 4, \ | |
1973 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
1974 "size") \ | |
0 | 1975 \ |
1976 product(uintx, DefaultMaxRAMFraction, 4, \ | |
1064 | 1977 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
1978 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
1979 \ | |
1980 product(uintx, MinRAMFraction, 2, \ | |
1981 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
1982 "size on systems with small physical memory size") \ | |
1983 \ | |
1984 product(uintx, InitialRAMFraction, 64, \ | |
1985 "Fraction (1/n) of real memory used for initial heap size") \ | |
0 | 1986 \ |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
1987 develop(uintx, MaxVirtMemFraction, 2, \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
1988 "Maximum fraction (1/n) of virtual memory used for ergonomically" \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
1989 "determining maximum heap size") \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
1990 \ |
0 | 1991 product(bool, UseAutoGCSelectPolicy, false, \ |
1992 "Use automatic collection selection policy") \ | |
1993 \ | |
1994 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
1995 "Automatic GC selection pause threshhold in ms") \ | |
1996 \ | |
1997 product(bool, UseAdaptiveSizePolicy, true, \ | |
1998 "Use adaptive generation sizing policies") \ | |
1999 \ | |
2000 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
2001 "Use adaptive survivor sizing policies") \ | |
2002 \ | |
2003 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
2004 "Use adaptive young-old sizing policies at minor collections") \ | |
2005 \ | |
2006 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
2007 "Use adaptive young-old sizing policies at major collections") \ | |
2008 \ | |
2009 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
2010 "Use statistics from System.GC for adaptive size policy") \ | |
2011 \ | |
2012 product(bool, UseAdaptiveGCBoundary, false, \ | |
2013 "Allow young-old boundary to move") \ | |
2014 \ | |
2015 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
2016 "Trace young-old boundary moves") \ | |
2017 \ | |
2018 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
2019 "Resize the virtual spaces of the young or old generations") \ | |
2020 \ | |
2021 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
2022 "Policy for changeing generation size for throughput goals") \ | |
2023 \ | |
2024 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
2025 "Policy for changing generation size for pause goals") \ | |
2026 \ | |
2027 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
2028 "Adjust tenured generation to achive a minor pause goal") \ | |
2029 \ | |
2030 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
2031 "Adjust young generation to achive a major pause goal") \ | |
2032 \ | |
2033 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
2034 "Number of steps where heuristics is used before data is used") \ | |
2035 \ | |
2036 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
2037 "Number of collections before the adaptive sizing is started") \ | |
2038 \ | |
2039 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
1064 | 2040 "Collecton interval for printing information; zero => never") \ |
0 | 2041 \ |
2042 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
2043 "Use adaptive minimum footprint as a goal") \ | |
2044 \ | |
2045 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
2046 "Weight given to exponential resizing, between 0 and 100") \ | |
2047 \ | |
2048 product(uintx, AdaptiveTimeWeight, 25, \ | |
2049 "Weight given to time in adaptive policy, between 0 and 100") \ | |
2050 \ | |
2051 product(uintx, PausePadding, 1, \ | |
2052 "How much buffer to keep for pause time") \ | |
2053 \ | |
2054 product(uintx, PromotedPadding, 3, \ | |
2055 "How much buffer to keep for promotion failure") \ | |
2056 \ | |
2057 product(uintx, SurvivorPadding, 3, \ | |
2058 "How much buffer to keep for survivor overflow") \ | |
2059 \ | |
2060 product(uintx, ThresholdTolerance, 10, \ | |
2061 "Allowed collection cost difference between generations") \ | |
2062 \ | |
2063 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
1064 | 2064 "If collection costs are within margin, reduce both by full " \ |
2065 "delta") \ | |
0 | 2066 \ |
2067 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
2068 "Adaptive size percentage change in young generation") \ | |
2069 \ | |
2070 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
2071 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
2072 \ | |
2073 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
2074 "Decay factor to YoungedGenerationSizeSupplement") \ | |
2075 \ | |
2076 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
2077 "Adaptive size percentage change in tenured generation") \ | |
2078 \ | |
2079 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
2080 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
2081 \ | |
2082 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
2083 "Decay factor to TenuredGenerationSizeIncrement") \ | |
2084 \ | |
6818 | 2085 product(uintx, MaxGCPauseMillis, max_uintx, \ |
751 | 2086 "Adaptive size policy maximum GC pause time goal in msec, " \ |
2087 "or (G1 Only) the max. GC time per MMU time slice") \ | |
2088 \ | |
1610
79107c3a6bd5
6949307: G1: raise a vm error, do not core dump, if target pause time and target interval are inconsistent
tonyp
parents:
1589
diff
changeset
|
2089 product(uintx, GCPauseIntervalMillis, 0, \ |
751 | 2090 "Time slice for MMU specification") \ |
0 | 2091 \ |
2092 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
2093 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
2094 \ | |
2095 product(uintx, GCTimeRatio, 99, \ | |
2096 "Adaptive size policy application time to GC time ratio") \ | |
2097 \ | |
2098 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
2099 "Adaptive size scale down factor for shrinking") \ | |
2100 \ | |
2101 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
2102 "Adaptive size decays the major cost for long major intervals") \ | |
2103 \ | |
2104 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
2105 "Time scale over which major costs decay") \ | |
2106 \ | |
2107 product(uintx, MinSurvivorRatio, 3, \ | |
2108 "Minimum ratio of young generation/survivor space size") \ | |
2109 \ | |
2110 product(uintx, InitialSurvivorRatio, 8, \ | |
2111 "Initial ratio of eden/survivor space size") \ | |
2112 \ | |
2113 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
2114 "Estimate of footprint other than Java Heap") \ | |
2115 \ | |
2116 product(bool, UseGCOverheadLimit, true, \ | |
2117 "Use policy to limit of proportion of time spent in GC " \ | |
2118 "before an OutOfMemory error is thrown") \ | |
2119 \ | |
2120 product(uintx, GCTimeLimit, 98, \ | |
2121 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
2122 "error is thrown (used with GCHeapFreeLimit)") \ | |
2123 \ | |
2124 product(uintx, GCHeapFreeLimit, 2, \ | |
2125 "Minimum percentage of free space after a full GC before an " \ | |
2126 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
2127 \ | |
2128 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
2129 "Number of consecutive collections before gc time limit fires") \ | |
2130 \ | |
2131 product(bool, PrintAdaptiveSizePolicy, false, \ | |
2132 "Print information about AdaptiveSizePolicy") \ | |
2133 \ | |
2134 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
2135 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
2136 \ | |
2137 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
2138 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
2139 \ | |
2140 product(intx, PrefetchFieldsAhead, -1, \ | |
2141 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
2142 \ | |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2143 diagnostic(bool, VerifyDuringStartup, false, \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2144 "Verify memory system before executing any Java code " \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2145 "during VM initialization") \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2146 \ |
0 | 2147 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
2148 "Verify system before exiting") \ | |
2149 \ | |
2150 diagnostic(bool, VerifyBeforeGC, false, \ | |
2151 "Verify memory system before GC") \ | |
2152 \ | |
2153 diagnostic(bool, VerifyAfterGC, false, \ | |
2154 "Verify memory system after GC") \ | |
2155 \ | |
2156 diagnostic(bool, VerifyDuringGC, false, \ | |
2157 "Verify memory system during GC (between phases)") \ | |
2158 \ | |
390 | 2159 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
2160 "Enable parallel memory system verification") \ | |
2161 \ | |
1166 | 2162 diagnostic(bool, DeferInitialCardMark, false, \ |
2163 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
2164 "may arise from new_pre_store_barrier") \ | |
2165 \ | |
0 | 2166 diagnostic(bool, VerifyRememberedSets, false, \ |
2167 "Verify GC remembered sets") \ | |
2168 \ | |
2169 diagnostic(bool, VerifyObjectStartArray, true, \ | |
2170 "Verify GC object start array if verify before/after") \ | |
2171 \ | |
2172 product(bool, DisableExplicitGC, false, \ | |
2173 "Tells whether calling System.gc() does a full GC") \ | |
2174 \ | |
2175 notproduct(bool, CheckMemoryInitialization, false, \ | |
2176 "Checks memory initialization") \ | |
2177 \ | |
2178 product(bool, CollectGen0First, false, \ | |
2179 "Collect youngest generation before each full GC") \ | |
2180 \ | |
2181 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
2182 "Bind CMS Thread to CPU if possible") \ | |
2183 \ | |
2184 diagnostic(uintx, CPUForCMSThread, 0, \ | |
2185 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
2186 \ | |
2187 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
2188 "Bind GCTaskThreads to CPUs if possible") \ | |
2189 \ | |
2190 product(bool, UseGCTaskAffinity, false, \ | |
2191 "Use worker affinity when asking for GCTasks") \ | |
2192 \ | |
2193 product(uintx, ProcessDistributionStride, 4, \ | |
2194 "Stride through processors when distributing processes") \ | |
2195 \ | |
2196 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
2197 "number of times the coordinator GC thread will sleep while " \ | |
2198 "yielding before giving up and resuming GC") \ | |
2199 \ | |
2200 product(uintx, CMSYieldSleepCount, 0, \ | |
2201 "number of times a GC thread (minus the coordinator) " \ | |
2202 "will sleep while yielding before giving up and resuming GC") \ | |
2203 \ | |
2204 /* gc tracing */ \ | |
2205 manageable(bool, PrintGC, false, \ | |
2206 "Print message at garbage collect") \ | |
2207 \ | |
2208 manageable(bool, PrintGCDetails, false, \ | |
2209 "Print more details at garbage collect") \ | |
2210 \ | |
2211 manageable(bool, PrintGCDateStamps, false, \ | |
2212 "Print date stamps at garbage collect") \ | |
2213 \ | |
2214 manageable(bool, PrintGCTimeStamps, false, \ | |
2215 "Print timestamps at garbage collect") \ | |
2216 \ | |
2217 product(bool, PrintGCTaskTimeStamps, false, \ | |
2218 "Print timestamps for individual gc worker thread tasks") \ | |
2219 \ | |
2220 develop(intx, ConcGCYieldTimeout, 0, \ | |
2221 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
2222 \ | |
2223 notproduct(bool, TraceMarkSweep, false, \ | |
2224 "Trace mark sweep") \ | |
2225 \ | |
2226 product(bool, PrintReferenceGC, false, \ | |
2227 "Print times spent handling reference objects during GC " \ | |
2228 " (enabled only when PrintGCDetails)") \ | |
2229 \ | |
2230 develop(bool, TraceReferenceGC, false, \ | |
2231 "Trace handling of soft/weak/final/phantom references") \ | |
2232 \ | |
2233 develop(bool, TraceFinalizerRegistration, false, \ | |
2234 "Trace registration of final references") \ | |
2235 \ | |
2236 notproduct(bool, TraceScavenge, false, \ | |
2237 "Trace scavenge") \ | |
2238 \ | |
2239 product_rw(bool, TraceClassLoading, false, \ | |
2240 "Trace all classes loaded") \ | |
2241 \ | |
2242 product(bool, TraceClassLoadingPreorder, false, \ | |
2243 "Trace all classes loaded in order referenced (not loaded)") \ | |
2244 \ | |
2245 product_rw(bool, TraceClassUnloading, false, \ | |
2246 "Trace unloading of classes") \ | |
2247 \ | |
2248 product_rw(bool, TraceLoaderConstraints, false, \ | |
2249 "Trace loader constraints") \ | |
2250 \ | |
6725
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2251 develop(bool, TraceClassLoaderData, false, \ |
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2252 "Trace class loader loader_data lifetime") \ |
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|
2253 \ |
7446
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8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
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diff
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|
2254 product(uintx, InitialBootClassLoaderMetaspaceSize, \ |
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jmasa
parents:
7428
diff
changeset
|
2255 NOT_LP64(2200*K) LP64_ONLY(4*M), \ |
6725
da91efe96a93
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6633
diff
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|
2256 "Initial size of the boot class loader data metaspace") \ |
da91efe96a93
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6633
diff
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|
2257 \ |
0 | 2258 product(bool, TraceGen0Time, false, \ |
2259 "Trace accumulated time for Gen 0 collection") \ | |
2260 \ | |
2261 product(bool, TraceGen1Time, false, \ | |
2262 "Trace accumulated time for Gen 1 collection") \ | |
2263 \ | |
2264 product(bool, PrintTenuringDistribution, false, \ | |
2265 "Print tenuring age information") \ | |
2266 \ | |
2267 product_rw(bool, PrintHeapAtGC, false, \ | |
2268 "Print heap layout before and after each GC") \ | |
2269 \ | |
838
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6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
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|
2270 product_rw(bool, PrintHeapAtGCExtended, false, \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2271 "Prints extended information about the layout of the heap " \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2272 "when -XX:+PrintHeapAtGC is set") \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2273 \ |
0 | 2274 product(bool, PrintHeapAtSIGBREAK, true, \ |
2275 "Print heap layout in response to SIGBREAK") \ | |
2276 \ | |
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2277 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2278 "Print a class histogram before any major stop-world GC") \ |
c6c601a0f2d6
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ysr
parents:
570
diff
changeset
|
2279 \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2280 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
c6c601a0f2d6
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ysr
parents:
570
diff
changeset
|
2281 "Print a class histogram after any major stop-world GC") \ |
c6c601a0f2d6
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ysr
parents:
570
diff
changeset
|
2282 \ |
0 | 2283 manageable(bool, PrintClassHistogram, false, \ |
2284 "Print a histogram of class instances") \ | |
2285 \ | |
2286 develop(bool, TraceWorkGang, false, \ | |
2287 "Trace activities of work gangs") \ | |
2288 \ | |
2289 product(bool, TraceParallelOldGCTasks, false, \ | |
2290 "Trace multithreaded GC activity") \ | |
2291 \ | |
2292 develop(bool, TraceBlockOffsetTable, false, \ | |
2293 "Print BlockOffsetTable maps") \ | |
2294 \ | |
2295 develop(bool, TraceCardTableModRefBS, false, \ | |
2296 "Print CardTableModRefBS maps") \ | |
2297 \ | |
2298 develop(bool, TraceGCTaskManager, false, \ | |
2299 "Trace actions of the GC task manager") \ | |
2300 \ | |
2301 develop(bool, TraceGCTaskQueue, false, \ | |
2302 "Trace actions of the GC task queues") \ | |
2303 \ | |
6818 | 2304 diagnostic(bool, TraceGCTaskThread, false, \ |
0 | 2305 "Trace actions of the GC task threads") \ |
2306 \ | |
2307 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
2308 "Print the time taken by each parallel old gc phase." \ | |
2309 "PrintGCDetails must also be enabled.") \ | |
2310 \ | |
2311 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
2312 "Trace parallel old gc marking phase") \ | |
2313 \ | |
2314 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
2315 "Trace parallel old gc summary phase") \ | |
2316 \ | |
2317 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
2318 "Trace parallel old gc compaction phase") \ | |
2319 \ | |
2320 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
2321 "Trace parallel old gc dense prefix computation") \ | |
2322 \ | |
2323 develop(bool, IgnoreLibthreadGPFault, false, \ | |
2324 "Suppress workaround for libthread GP fault") \ | |
2325 \ | |
139
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6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2326 product(bool, PrintJNIGCStalls, false, \ |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2327 "Print diagnostic message when GC is stalled" \ |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2328 "by JNI critical section") \ |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2329 \ |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2330 /* GC log rotation setting */ \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2331 \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2332 product(bool, UseGCLogFileRotation, false, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2333 "Prevent large gclog file for long running app. " \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2334 "Requires -Xloggc:<filename>") \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2335 \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2336 product(uintx, NumberOfGCLogFiles, 0, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2337 "Number of gclog files in rotation, " \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2338 "Default: 0, no rotation") \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2339 \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2340 product(uintx, GCLogFileSize, 0, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2341 "GC log file size, Default: 0 bytes, no rotation " \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2342 "Only valid with UseGCLogFileRotation") \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3418
diff
changeset
|
2343 \ |
0 | 2344 /* JVMTI heap profiling */ \ |
2345 \ | |
2346 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
2347 "Trace JVMTI object tagging calls") \ | |
2348 \ | |
2349 diagnostic(bool, VerifyBeforeIteration, false, \ | |
2350 "Verify memory system before JVMTI iteration") \ | |
2351 \ | |
2352 /* compiler interface */ \ | |
2353 \ | |
2354 develop(bool, CIPrintCompilerName, false, \ | |
2355 "when CIPrint is active, print the name of the active compiler") \ | |
2356 \ | |
2357 develop(bool, CIPrintCompileQueue, false, \ | |
2358 "display the contents of the compile queue whenever a " \ | |
2359 "compilation is enqueued") \ | |
2360 \ | |
2361 develop(bool, CIPrintRequests, false, \ | |
2362 "display every request for compilation") \ | |
2363 \ | |
2364 product(bool, CITime, false, \ | |
2365 "collect timing information for compilation") \ | |
2366 \ | |
2367 develop(bool, CITimeEach, false, \ | |
2368 "display timing information after each successful compilation") \ | |
2369 \ | |
6843 | 2370 develop(bool, CICountOSR, false, \ |
0 | 2371 "use a separate counter when assigning ids to osr compilations") \ |
2372 \ | |
2373 develop(bool, CICompileNatives, true, \ | |
2374 "compile native methods if supported by the compiler") \ | |
2375 \ | |
2376 develop_pd(bool, CICompileOSR, \ | |
2377 "compile on stack replacement methods if supported by the " \ | |
2378 "compiler") \ | |
2379 \ | |
2380 develop(bool, CIPrintMethodCodes, false, \ | |
2381 "print method bytecodes of the compiled code") \ | |
2382 \ | |
2383 develop(bool, CIPrintTypeFlow, false, \ | |
2384 "print the results of ciTypeFlow analysis") \ | |
2385 \ | |
2386 develop(bool, CITraceTypeFlow, false, \ | |
2387 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
2388 \ | |
2403 | 2389 develop(intx, OSROnlyBCI, -1, \ |
2390 "OSR only at this bci. Negative values mean exclude that bci") \ | |
2391 \ | |
0 | 2392 /* compiler */ \ |
2393 \ | |
2394 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
2395 "Number of compiler threads to run") \ | |
2396 \ | |
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
7125
diff
changeset
|
2397 product(intx, CompilationPolicyChoice, NOT_GRAALVM(0) GRAALVM_ONLY(4), \ |
0 | 2398 "which compilation policy (0/1)") \ |
2399 \ | |
2400 develop(bool, UseStackBanging, true, \ | |
2401 "use stack banging for stack overflow checks (required for " \ | |
2402 "proper StackOverflow handling; disable only to measure cost " \ | |
2403 "of stackbanging)") \ | |
2404 \ | |
2405 develop(bool, UseStrictFP, true, \ | |
2406 "use strict fp if modifier strictfp is set") \ | |
2407 \ | |
2408 develop(bool, GenerateSynchronizationCode, true, \ | |
2409 "generate locking/unlocking code for synchronized methods and " \ | |
2410 "monitors") \ | |
2411 \ | |
2412 develop(bool, GenerateCompilerNullChecks, true, \ | |
2413 "Generate explicit null checks for loads/stores/calls") \ | |
2414 \ | |
2415 develop(bool, GenerateRangeChecks, true, \ | |
2416 "Generate range checks for array accesses") \ | |
2417 \ | |
2418 develop_pd(bool, ImplicitNullChecks, \ | |
2419 "generate code for implicit null checks") \ | |
2420 \ | |
2421 product(bool, PrintSafepointStatistics, false, \ | |
2422 "print statistics about safepoint synchronization") \ | |
2423 \ | |
2424 product(intx, PrintSafepointStatisticsCount, 300, \ | |
2425 "total number of safepoint statistics collected " \ | |
2426 "before printing them out") \ | |
2427 \ | |
2428 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
2429 "print safepoint statistics only when safepoint takes" \ | |
2430 " more than PrintSafepointSatisticsTimeout in millis") \ | |
2431 \ | |
1321
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2432 product(bool, TraceSafepointCleanupTime, false, \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2433 "print the break down of clean up tasks performed during" \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2434 " safepoint") \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2435 \ |
0 | 2436 product(bool, Inline, true, \ |
2437 "enable inlining") \ | |
2438 \ | |
2439 product(bool, ClipInlining, true, \ | |
2440 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
2441 \ | |
2442 develop(bool, UseCHA, true, \ | |
2443 "enable CHA") \ | |
2444 \ | |
2445 product(bool, UseTypeProfile, true, \ | |
2446 "Check interpreter profile for historically monomorphic calls") \ | |
2447 \ | |
2448 notproduct(bool, TimeCompiler, false, \ | |
2449 "time the compiler") \ | |
2450 \ | |
2451 diagnostic(bool, PrintInlining, false, \ | |
2452 "prints inlining optimizations") \ | |
2453 \ | |
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2454 product(bool, UsePopCountInstruction, false, \ |
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2455 "Use population count instruction") \ |
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2456 \ |
0 | 2457 develop(bool, EagerInitialization, false, \ |
2458 "Eagerly initialize classes if possible") \ | |
2459 \ | |
2460 develop(bool, TraceMethodReplacement, false, \ | |
2461 "Print when methods are replaced do to recompilation") \ | |
2462 \ | |
2463 develop(bool, PrintMethodFlushing, false, \ | |
2464 "print the nmethods being flushed") \ | |
2465 \ | |
2466 develop(bool, UseRelocIndex, false, \ | |
2467 "use an index to speed random access to relocations") \ | |
2468 \ | |
2469 develop(bool, StressCodeBuffers, false, \ | |
2470 "Exercise code buffer expansion and other rare state changes") \ | |
2471 \ | |
2472 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
2473 "Generate extra debugging info for non-safepoints in nmethods") \ | |
2474 \ | |
4066 | 2475 product(bool, PrintVMOptions, false, \ |
1150 | 2476 "Print flags that appeared on the command line") \ |
0 | 2477 \ |
564 | 2478 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
2479 "Ignore unrecognized VM options") \ | |
2480 \ | |
1150 | 2481 product(bool, PrintCommandLineFlags, false, \ |
2482 "Print flags specified on command line or set by ergonomics") \ | |
2483 \ | |
2484 product(bool, PrintFlagsInitial, false, \ | |
2485 "Print all VM flags before argument processing and exit VM") \ | |
2486 \ | |
2487 product(bool, PrintFlagsFinal, false, \ | |
2488 "Print all VM flags after argument and ergonomic processing") \ | |
2489 \ | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2490 notproduct(bool, PrintFlagsWithComments, false, \ |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2491 "Print all VM flags with default values and descriptions and exit")\ |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2492 \ |
0 | 2493 diagnostic(bool, SerializeVMOutput, true, \ |
2494 "Use a mutex to serialize output to tty and hotspot.log") \ | |
2495 \ | |
2496 diagnostic(bool, DisplayVMOutput, true, \ | |
2497 "Display all VM output on the tty, independently of LogVMOutput") \ | |
2498 \ | |
2499 diagnostic(bool, LogVMOutput, trueInDebug, \ | |
2500 "Save VM output to hotspot.log, or to LogFile") \ | |
2501 \ | |
2502 diagnostic(ccstr, LogFile, NULL, \ | |
2503 "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ | |
2504 \ | |
2505 product(ccstr, ErrorFile, NULL, \ | |
2506 "If an error occurs, save the error data to this file " \ | |
2507 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
2508 \ | |
2509 product(bool, DisplayVMOutputToStderr, false, \ | |
2510 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
2511 \ | |
2512 product(bool, DisplayVMOutputToStdout, false, \ | |
2513 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
2514 \ | |
2515 product(bool, UseHeavyMonitors, false, \ | |
2516 "use heavyweight instead of lightweight Java monitors") \ | |
2517 \ | |
6162 | 2518 product(bool, PrintStringTableStatistics, false, \ |
2519 "print statistics about the StringTable and SymbolTable") \ | |
2520 \ | |
0 | 2521 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
2522 "print histogram of the symbol table") \ | |
2523 \ | |
2524 notproduct(bool, ExitVMOnVerifyError, false, \ | |
2525 "standard exit from VM if bytecode verify error " \ | |
2526 "(only in debug mode)") \ | |
2527 \ | |
2528 notproduct(ccstr, AbortVMOnException, NULL, \ | |
2529 "Call fatal if this exception is thrown. Example: " \ | |
2530 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
2531 \ | |
1684
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2532 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2533 "Call fatal if the exception pointed by AbortVMOnException " \ |
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2534 "has this message.") \ |
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2535 \ |
0 | 2536 develop(bool, DebugVtables, false, \ |
2537 "add debugging code to vtable dispatch") \ | |
2538 \ | |
2539 develop(bool, PrintVtables, false, \ | |
2540 "print vtables when printing klass") \ | |
2541 \ | |
2542 notproduct(bool, PrintVtableStats, false, \ | |
2543 "print vtables stats at end of run") \ | |
2544 \ | |
2545 develop(bool, TraceCreateZombies, false, \ | |
2546 "trace creation of zombie nmethods") \ | |
2547 \ | |
2548 notproduct(bool, IgnoreLockingAssertions, false, \ | |
2549 "disable locking assertions (for speed)") \ | |
2550 \ | |
2551 product(bool, RangeCheckElimination, true, \ | |
8860 | 2552 "Eliminate range checks") \ |
0 | 2553 \ |
2554 develop_pd(bool, UncommonNullCast, \ | |
2555 "track occurrences of null in casts; adjust compiler tactics") \ | |
2556 \ | |
2557 develop(bool, TypeProfileCasts, true, \ | |
2558 "treat casts like calls for purposes of type profiling") \ | |
2559 \ | |
2560 develop(bool, DelayCompilationDuringStartup, true, \ | |
2561 "Delay invoking the compiler until main application class is " \ | |
2562 "loaded") \ | |
2563 \ | |
2564 develop(bool, CompileTheWorld, false, \ | |
2565 "Compile all methods in all classes in bootstrap class path " \ | |
2566 "(stress test)") \ | |
2567 \ | |
2568 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
2569 "Preload all classes used by a class before start loading") \ | |
2570 \ | |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2571 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2572 "Force a safepoint every n compiles so sweeper can keep up") \ |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2573 \ |
0 | 2574 develop(bool, FillDelaySlots, true, \ |
2575 "Fill delay slots (on SPARC only)") \ | |
2576 \ | |
2577 develop(bool, TimeLivenessAnalysis, false, \ | |
2578 "Time computation of bytecode liveness analysis") \ | |
2579 \ | |
2580 develop(bool, TraceLivenessGen, false, \ | |
2581 "Trace the generation of liveness analysis information") \ | |
2582 \ | |
2583 notproduct(bool, TraceLivenessQuery, false, \ | |
2584 "Trace queries of liveness analysis information") \ | |
2585 \ | |
2586 notproduct(bool, CollectIndexSetStatistics, false, \ | |
2587 "Collect information about IndexSets") \ | |
2588 \ | |
2589 develop(bool, UseLoopSafepoints, true, \ | |
2590 "Generate Safepoint nodes in every loop") \ | |
2591 \ | |
2592 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
2593 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
2594 "Inline allocations larger than this in doublewords must go slow")\ | |
2595 \ | |
2596 product(bool, AggressiveOpts, false, \ | |
2597 "Enable aggressive optimizations - see arguments.cpp") \ | |
2598 \ | |
192
6d13fcb3663f
6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents:
174
diff
changeset
|
2599 product(bool, UseStringCache, false, \ |
6d13fcb3663f
6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents:
174
diff
changeset
|
2600 "Enable String cache capabilities on String.java") \ |
6d13fcb3663f
6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents:
174
diff
changeset
|
2601 \ |
0 | 2602 /* statistics */ \ |
2603 develop(bool, CountCompiledCalls, false, \ | |
2604 "counts method invocations") \ | |
2605 \ | |
2606 notproduct(bool, CountRuntimeCalls, false, \ | |
2607 "counts VM runtime calls") \ | |
2608 \ | |
2609 develop(bool, CountJNICalls, false, \ | |
2610 "counts jni method invocations") \ | |
2611 \ | |
2612 notproduct(bool, CountJVMCalls, false, \ | |
2613 "counts jvm method invocations") \ | |
2614 \ | |
2615 notproduct(bool, CountRemovableExceptions, false, \ | |
2616 "count exceptions that could be replaced by branches due to " \ | |
2617 "inlining") \ | |
2618 \ | |
2619 notproduct(bool, ICMissHistogram, false, \ | |
2620 "produce histogram of IC misses") \ | |
2621 \ | |
2622 notproduct(bool, PrintClassStatistics, false, \ | |
2623 "prints class statistics at end of run") \ | |
2624 \ | |
2625 notproduct(bool, PrintMethodStatistics, false, \ | |
2626 "prints method statistics at end of run") \ | |
2627 \ | |
2628 /* interpreter */ \ | |
2629 develop(bool, ClearInterpreterLocals, false, \ | |
2630 "Always clear local variables of interpreter activations upon " \ | |
2631 "entry") \ | |
2632 \ | |
2633 product_pd(bool, RewriteBytecodes, \ | |
2634 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
2635 \ | |
2636 product_pd(bool, RewriteFrequentPairs, \ | |
2637 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
2638 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
2639 diagnostic(bool, PrintInterpreter, false, \ |
0 | 2640 "Prints the generated interpreter code") \ |
2641 \ | |
2642 product(bool, UseInterpreter, true, \ | |
2643 "Use interpreter for non-compiled methods") \ | |
2644 \ | |
2645 develop(bool, UseFastSignatureHandlers, true, \ | |
2646 "Use fast signature handlers for native calls") \ | |
2647 \ | |
2648 product(bool, UseLoopCounter, true, \ | |
2649 "Increment invocation counter on backward branch") \ | |
2650 \ | |
2651 product(bool, UseFastEmptyMethods, true, \ | |
2652 "Use fast method entry code for empty methods") \ | |
2653 \ | |
2654 product(bool, UseFastAccessorMethods, true, \ | |
2655 "Use fast method entry code for accessor methods") \ | |
2656 \ | |
2657 product_pd(bool, UseOnStackReplacement, \ | |
2658 "Use on stack replacement, calls runtime if invoc. counter " \ | |
2659 "overflows in loop") \ | |
2660 \ | |
2661 notproduct(bool, TraceOnStackReplacement, false, \ | |
2662 "Trace on stack replacement") \ | |
2663 \ | |
2664 product_pd(bool, PreferInterpreterNativeStubs, \ | |
2665 "Use always interpreter stubs for native methods invoked via " \ | |
2666 "interpreter") \ | |
2667 \ | |
2668 develop(bool, CountBytecodes, false, \ | |
2669 "Count number of bytecodes executed") \ | |
2670 \ | |
2671 develop(bool, PrintBytecodeHistogram, false, \ | |
2672 "Print histogram of the executed bytecodes") \ | |
2673 \ | |
2674 develop(bool, PrintBytecodePairHistogram, false, \ | |
2675 "Print histogram of the executed bytecode pairs") \ | |
2676 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
2677 diagnostic(bool, PrintSignatureHandlers, false, \ |
0 | 2678 "Print code generated for native method signature handlers") \ |
2679 \ | |
2680 develop(bool, VerifyOops, false, \ | |
2681 "Do plausibility checks for oops") \ | |
2682 \ | |
2683 develop(bool, CheckUnhandledOops, false, \ | |
2684 "Check for unhandled oops in VM code") \ | |
2685 \ | |
2686 develop(bool, VerifyJNIFields, trueInDebug, \ | |
2687 "Verify jfieldIDs for instance fields") \ | |
2688 \ | |
2689 notproduct(bool, VerifyJNIEnvThread, false, \ | |
2690 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
2691 "from JNI") \ | |
2692 \ | |
2693 develop(bool, VerifyFPU, false, \ | |
2694 "Verify FPU state (check for NaN's, etc.)") \ | |
2695 \ | |
2696 develop(bool, VerifyThread, false, \ | |
2697 "Watch the thread register for corruption (SPARC only)") \ | |
2698 \ | |
2699 develop(bool, VerifyActivationFrameSize, false, \ | |
2700 "Verify that activation frame didn't become smaller than its " \ | |
2701 "minimal size") \ | |
2702 \ | |
2703 develop(bool, TraceFrequencyInlining, false, \ | |
2704 "Trace frequency based inlining") \ | |
2705 \ | |
2706 develop_pd(bool, InlineIntrinsics, \ | |
2707 "Inline intrinsics that can be statically resolved") \ | |
2708 \ | |
2709 product_pd(bool, ProfileInterpreter, \ | |
2710 "Profile at the bytecode level during interpretation") \ | |
2711 \ | |
2712 develop_pd(bool, ProfileTraps, \ | |
2713 "Profile deoptimization traps at the bytecode level") \ | |
2714 \ | |
2715 product(intx, ProfileMaturityPercentage, 20, \ | |
2716 "number of method invocations/branches (expressed as % of " \ | |
2717 "CompileThreshold) before using the method's profile") \ | |
2718 \ | |
2719 develop(bool, PrintMethodData, false, \ | |
2720 "Print the results of +ProfileInterpreter at end of run") \ | |
2721 \ | |
2722 develop(bool, VerifyDataPointer, trueInDebug, \ | |
2723 "Verify the method data pointer during interpreter profiling") \ | |
2724 \ | |
2725 develop(bool, VerifyCompiledCode, false, \ | |
2726 "Include miscellaneous runtime verifications in nmethod code; " \ | |
1064 | 2727 "default off because it disturbs nmethod size heuristics") \ |
0 | 2728 \ |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2729 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2730 "Manually make GC thread crash then dump java stack trace; " \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2731 "Test only") \ |
0 | 2732 \ |
2733 /* compilation */ \ | |
2734 product(bool, UseCompiler, true, \ | |
2735 "use compilation") \ | |
2736 \ | |
2737 develop(bool, TraceCompilationPolicy, false, \ | |
2738 "Trace compilation policy") \ | |
2739 \ | |
2740 develop(bool, TimeCompilationPolicy, false, \ | |
2741 "Time the compilation policy") \ | |
2742 \ | |
2743 product(bool, UseCounterDecay, true, \ | |
2744 "adjust recompilation counters") \ | |
2745 \ | |
2746 develop(intx, CounterHalfLifeTime, 30, \ | |
2747 "half-life time of invocation counters (in secs)") \ | |
2748 \ | |
2749 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
2750 "Min. ms. between invocation of CounterDecay") \ | |
2751 \ | |
2752 product(bool, AlwaysCompileLoopMethods, false, \ | |
2753 "when using recompilation, never interpret methods " \ | |
2754 "containing loops") \ | |
2755 \ | |
2756 product(bool, DontCompileHugeMethods, true, \ | |
2757 "don't compile methods > HugeMethodLimit") \ | |
2758 \ | |
2759 /* Bytecode escape analysis estimation. */ \ | |
2760 product(bool, EstimateArgEscape, true, \ | |
2761 "Analyze bytecodes to estimate escape state of arguments") \ | |
2762 \ | |
2763 product(intx, BCEATraceLevel, 0, \ | |
2764 "How much tracing to do of bytecode escape analysis estimates") \ | |
2765 \ | |
2766 product(intx, MaxBCEAEstimateLevel, 5, \ | |
2767 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
2768 \ | |
2769 product(intx, MaxBCEAEstimateSize, 150, \ | |
2770 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
2771 \ | |
2772 product(intx, AllocatePrefetchStyle, 1, \ | |
2773 "0 = no prefetch, " \ | |
2774 "1 = prefetch instructions for each allocation, " \ | |
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2775 "2 = use TLAB watermark to gate allocation prefetch, " \ |
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2776 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
0 | 2777 \ |
2778 product(intx, AllocatePrefetchDistance, -1, \ | |
2779 "Distance to prefetch ahead of allocation pointer") \ | |
2780 \ | |
3854 | 2781 product(intx, AllocatePrefetchLines, 3, \ |
2782 "Number of lines to prefetch ahead of array allocation pointer") \ | |
2783 \ | |
2784 product(intx, AllocateInstancePrefetchLines, 1, \ | |
2785 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
0 | 2786 \ |
2787 product(intx, AllocatePrefetchStepSize, 16, \ | |
2788 "Step size in bytes of sequential prefetch instructions") \ | |
2789 \ | |
2790 product(intx, AllocatePrefetchInstr, 0, \ | |
2791 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
2792 \ | |
2793 /* deoptimization */ \ | |
2607
008adfd6d850
Fixed the stateBefore of invokes and monitorenter instructions to include the arguments of the instruction.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2492
diff
changeset
|
2794 product(bool, TraceDeoptimization, false, \ |
0 | 2795 "Trace deoptimization") \ |
2796 \ | |
4668
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2797 product(bool, PrintDeoptimizationDetails, false, \ |
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2798 "Print more information about deoptimization") \ |
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2799 \ |
0 | 2800 develop(bool, DebugDeoptimization, false, \ |
2801 "Tracing various information while debugging deoptimization") \ | |
2802 \ | |
2803 product(intx, SelfDestructTimer, 0, \ | |
2804 "Will cause VM to terminate after a given time (in minutes) " \ | |
2805 "(0 means off)") \ | |
2806 \ | |
2807 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
2808 "Max. no. of lines in the stack trace for Java exceptions " \ | |
2809 "(0 means all)") \ | |
2810 \ | |
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
2811 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
0 | 2812 "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
|
2813 "(0 means none)")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2814 \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2815 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2816 "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
|
2817 "(0 means none)")) \ |
0 | 2818 \ |
2819 product(intx, SafepointTimeoutDelay, 10000, \ | |
2820 "Delay in milliseconds for option SafepointTimeout") \ | |
2821 \ | |
6818 | 2822 product(intx, NmethodSweepFraction, 16, \ |
0 | 2823 "Number of invocations of sweeper to cover all nmethods") \ |
2824 \ | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2825 product(intx, NmethodSweepCheckInterval, 5, \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2826 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2827 \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2828 notproduct(bool, LogSweeper, false, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2829 "Keep a ring buffer of sweeper activity") \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2830 \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2831 notproduct(intx, SweeperLogEntries, 1024, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2832 "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
|
2833 \ |
0 | 2834 notproduct(intx, MemProfilingInterval, 500, \ |
2835 "Time between each invocation of the MemProfiler") \ | |
2836 \ | |
2837 develop(intx, MallocCatchPtr, -1, \ | |
2838 "Hit breakpoint when mallocing/freeing this pointer") \ | |
2839 \ | |
2840 notproduct(intx, AssertRepeat, 1, \ | |
2841 "number of times to evaluate expression in assert " \ | |
2842 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
2843 \ | |
2844 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
2845 "List of assertions (file:line) to muzzle") \ | |
2846 \ | |
2847 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
2848 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
2849 "is used") \ | |
2850 \ | |
2851 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
2852 "Threshold for total handle allocation when " \ | |
2853 "+TraceHandleAllocation is used") \ | |
2854 \ | |
2855 develop(intx, StackPrintLimit, 100, \ | |
2856 "number of stack frames to print in VM-level stack dump") \ | |
2857 \ | |
2858 notproduct(intx, MaxElementPrintSize, 256, \ | |
2859 "maximum number of elements to print") \ | |
2860 \ | |
2861 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
2862 "maximum number of subklasses to print when printing klass") \ | |
2863 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2864 product(intx, MaxInlineLevel, 9, \ |
0 | 2865 "maximum number of nested calls that are inlined") \ |
2866 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2867 product(intx, MaxRecursiveInlineLevel, 1, \ |
0 | 2868 "maximum number of nested recursive calls that are inlined") \ |
2869 \ | |
675 | 2870 product_pd(intx, InlineSmallCode, \ |
0 | 2871 "Only inline already compiled methods if their code size is " \ |
2872 "less than this") \ | |
2873 \ | |
2874 product(intx, MaxInlineSize, 35, \ | |
2875 "maximum bytecode size of a method to be inlined") \ | |
2876 \ | |
2877 product_pd(intx, FreqInlineSize, \ | |
2878 "maximum bytecode size of a frequent method to be inlined") \ | |
2879 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2880 product(intx, MaxTrivialSize, 6, \ |
0 | 2881 "maximum bytecode size of a trivial method to be inlined") \ |
2882 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2883 product(intx, MinInliningThreshold, 250, \ |
0 | 2884 "min. invocation count a method needs to have to be inlined") \ |
2885 \ | |
2886 develop(intx, MethodHistogramCutoff, 100, \ | |
2887 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
2888 \ | |
2889 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
2890 "# of interpreted methods to show in profile") \ | |
2891 \ | |
2892 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
2893 "# of compiled methods to show in profile") \ | |
2894 \ | |
2895 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
2896 "# of stub methods to show in profile") \ | |
2897 \ | |
2898 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
2899 "# of runtime stub nodes to show in profile") \ | |
2900 \ | |
2901 product(intx, ProfileIntervalsTicks, 100, \ | |
2902 "# of ticks between printing of interval profile " \ | |
2903 "(+ProfileIntervals)") \ | |
2904 \ | |
2905 notproduct(intx, ScavengeALotInterval, 1, \ | |
2906 "Interval between which scavenge will occur with +ScavengeALot") \ | |
2907 \ | |
2908 notproduct(intx, FullGCALotInterval, 1, \ | |
2909 "Interval between which full gc will occur with +FullGCALot") \ | |
2910 \ | |
2911 notproduct(intx, FullGCALotStart, 0, \ | |
2912 "For which invocation to start FullGCAlot") \ | |
2913 \ | |
2914 notproduct(intx, FullGCALotDummies, 32*K, \ | |
2915 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
2916 "to move") \ | |
2917 \ | |
2918 develop(intx, DontYieldALotInterval, 10, \ | |
2919 "Interval between which yields will be dropped (milliseconds)") \ | |
2920 \ | |
2921 develop(intx, MinSleepInterval, 1, \ | |
2922 "Minimum sleep() interval (milliseconds) when " \ | |
2923 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
2924 \ | |
2925 develop(intx, ProfilerPCTickThreshold, 15, \ | |
2926 "Number of ticks in a PC buckets to be a hotspot") \ | |
2927 \ | |
2928 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
2929 "Number of exits until DeoptimizeALot kicks in") \ | |
2930 \ | |
2931 notproduct(intx, ZombieALotInterval, 5, \ | |
2932 "Number of exits until ZombieALot kicks in") \ | |
2933 \ | |
2934 develop(bool, StressNonEntrant, false, \ | |
2935 "Mark nmethods non-entrant at registration") \ | |
2936 \ | |
2937 diagnostic(intx, MallocVerifyInterval, 0, \ | |
2938 "if non-zero, verify C heap after every N calls to " \ | |
2939 "malloc/realloc/free") \ | |
2940 \ | |
2941 diagnostic(intx, MallocVerifyStart, 0, \ | |
2942 "if non-zero, start verifying C heap after Nth call to " \ | |
2943 "malloc/realloc/free") \ | |
2944 \ | |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2945 diagnostic(uintx, MallocMaxTestWords, 0, \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2946 "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
|
2947 "(for testing only)") \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2948 \ |
7214
e9fe9d3d94ac
re-enabled inlining of polymorphic calls with more than 2 receiver types
Christian Haeubl <haeubl@ssw.jku.at>
parents:
7068
diff
changeset
|
2949 product_pd(intx, TypeProfileWidth, \ |
0 | 2950 "number of receiver types to record in call/cast profile") \ |
2951 \ | |
2952 develop(intx, BciProfileWidth, 2, \ | |
2953 "number of return bci's to record in ret profile") \ | |
2954 \ | |
2955 product(intx, PerMethodRecompilationCutoff, 400, \ | |
2956 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
2957 \ | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
2958 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
0 | 2959 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
2960 \ | |
2961 product(intx, PerMethodTrapLimit, 100, \ | |
2962 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
2963 \ | |
2964 product(intx, PerBytecodeTrapLimit, 4, \ | |
2965 "Limit on traps (of one kind) at a particular BCI") \ | |
2966 \ | |
2967 develop(intx, InlineFrequencyRatio, 20, \ | |
2968 "Ratio of call site execution to caller method invocation") \ | |
2969 \ | |
2970 develop_pd(intx, InlineFrequencyCount, \ | |
2971 "Count of call site execution necessary to trigger frequent " \ | |
2972 "inlining") \ | |
2973 \ | |
2974 develop(intx, InlineThrowCount, 50, \ | |
2975 "Force inlining of interpreted methods that throw this often") \ | |
2976 \ | |
2977 develop(intx, InlineThrowMaxSize, 200, \ | |
2978 "Force inlining of throwing methods smaller than this") \ | |
2979 \ | |
2980 develop(intx, ProfilerNodeSize, 1024, \ | |
2981 "Size in K to allocate for the Profile Nodes of each thread") \ | |
2982 \ | |
2983 product_pd(intx, PreInflateSpin, \ | |
2984 "Number of times to spin wait before inflation") \ | |
2985 \ | |
2986 /* gc parameters */ \ | |
1064 | 2987 product(uintx, InitialHeapSize, 0, \ |
2988 "Initial heap size (in bytes); zero means OldSize + NewSize") \ | |
2989 \ | |
2990 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
2991 "Maximum heap size (in bytes)") \ | |
2992 \ | |
2993 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
2994 "Initial tenured generation size (in bytes)") \ | |
2995 \ | |
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
2996 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
1064 | 2997 "Initial new generation size (in bytes)") \ |
0 | 2998 \ |
2999 product(uintx, MaxNewSize, max_uintx, \ | |
1064 | 3000 "Maximum new generation size (in bytes), max_uintx means set " \ |
3001 "ergonomically") \ | |
0 | 3002 \ |
3003 product(uintx, PretenureSizeThreshold, 0, \ | |
1064 | 3004 "Maximum size in bytes of objects allocated in DefNew " \ |
3005 "generation; zero means no maximum") \ | |
3006 \ | |
3007 product(uintx, TLABSize, 0, \ | |
3008 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
0 | 3009 \ |
3010 product(uintx, MinTLABSize, 2*K, \ | |
3011 "Minimum allowed TLAB size (in bytes)") \ | |
3012 \ | |
3013 product(uintx, TLABAllocationWeight, 35, \ | |
3014 "Allocation averaging weight") \ | |
3015 \ | |
3016 product(uintx, TLABWasteTargetPercent, 1, \ | |
3017 "Percentage of Eden that can be wasted") \ | |
3018 \ | |
3019 product(uintx, TLABRefillWasteFraction, 64, \ | |
3020 "Max TLAB waste at a refill (internal fragmentation)") \ | |
3021 \ | |
3022 product(uintx, TLABWasteIncrement, 4, \ | |
3023 "Increment allowed waste at slow allocation") \ | |
3024 \ | |
8035 | 3025 product(uintx, SurvivorRatio, 8, \ |
0 | 3026 "Ratio of eden/survivor space size") \ |
3027 \ | |
8035 | 3028 product(uintx, NewRatio, 2, \ |
0 | 3029 "Ratio of new/old generation sizes") \ |
3030 \ | |
3031 product_pd(uintx, NewSizeThreadIncrease, \ | |
3032 "Additional size added to desired new generation size per " \ | |
3033 "non-daemon thread (in bytes)") \ | |
3034 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6633
diff
changeset
|
3035 product_pd(uintx, MetaspaceSize, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6633
diff
changeset
|
3036 "Initial size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6633
diff
changeset
|
3037 \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6633
diff
changeset
|
3038 product(uintx, MaxMetaspaceSize, max_uintx, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6633
diff
changeset
|
3039 "Maximum size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6633
diff
changeset
|
3040 \ |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
3041 product(uintx, ClassMetaspaceSize, 2*M, \ |
6725
da91efe96a93
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6633
diff
changeset
|
3042 "Maximum size of InstanceKlass area in Metaspace used for " \ |
da91efe96a93
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coleenp
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6633
diff
changeset
|
3043 "UseCompressedKlassPointers") \ |
0 | 3044 \ |
3045 product(uintx, MinHeapFreeRatio, 40, \ | |
3046 "Min percentage of heap free after GC to avoid expansion") \ | |
3047 \ | |
3048 product(uintx, MaxHeapFreeRatio, 70, \ | |
3049 "Max percentage of heap free after GC to avoid shrinking") \ | |
3050 \ | |
3051 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
3052 "Number of milliseconds per MB of free space in the heap") \ | |
3053 \ | |
3054 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
3055 "Min change in heap space due to GC (in bytes)") \ | |
3056 \ | |
6818 | 3057 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3058 "Min expansion of Metaspace (in bytes)") \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3059 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
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8035
diff
changeset
|
3060 product(uintx, MinMetaspaceFreeRatio, 40, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3061 "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
|
3062 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
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8035
diff
changeset
|
3063 product(uintx, MaxMetaspaceFreeRatio, 70, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3064 "Max percentage of Metaspace free after GC to avoid shrinking") \ |
0 | 3065 \ |
6818 | 3066 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ |
8040
a83cd101fd62
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jmasa
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8035
diff
changeset
|
3067 "Max expansion of Metaspace without full GC (in bytes)") \ |
0 | 3068 \ |
3069 product(intx, QueuedAllocationWarningCount, 0, \ | |
3070 "Number of times an allocation that queues behind a GC " \ | |
3071 "will retry before printing a warning") \ | |
3072 \ | |
3073 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
3074 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
3075 \ | |
3076 diagnostic(intx, VerifyGCLevel, 0, \ | |
3077 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
3078 \ | |
6818 | 3079 product(uintx, MaxTenuringThreshold, 15, \ |
0 | 3080 "Maximum value for tenuring threshold") \ |
3081 \ | |
6818 | 3082 product(uintx, InitialTenuringThreshold, 7, \ |
0 | 3083 "Initial value for tenuring threshold") \ |
3084 \ | |
8035 | 3085 product(uintx, TargetSurvivorRatio, 50, \ |
0 | 3086 "Desired percentage of survivor space used after scavenge") \ |
3087 \ | |
438 | 3088 product(uintx, MarkSweepDeadRatio, 5, \ |
0 | 3089 "Percentage (0-100) of the old gen allowed as dead wood." \ |
3090 "Serial mark sweep treats this as both the min and max value." \ | |
3091 "CMS uses this value only if it falls back to mark sweep." \ | |
3092 "Par compact uses a variable scale based on the density of the" \ | |
3093 "generation and treats this as the max value when the heap is" \ | |
3094 "either completely full or completely empty. Par compact also" \ | |
3095 "has a smaller default value; see arguments.cpp.") \ | |
3096 \ | |
3097 product(intx, MarkSweepAlwaysCompactCount, 4, \ | |
3098 "How often should we fully compact the heap (ignoring the dead " \ | |
3099 "space parameters)") \ | |
3100 \ | |
3101 product(intx, PrintCMSStatistics, 0, \ | |
3102 "Statistics for CMS") \ | |
3103 \ | |
3104 product(bool, PrintCMSInitiationStatistics, false, \ | |
3105 "Statistics for initiating a CMS collection") \ | |
3106 \ | |
3107 product(intx, PrintFLSStatistics, 0, \ | |
3108 "Statistics for CMS' FreeListSpace") \ | |
3109 \ | |
3110 product(intx, PrintFLSCensus, 0, \ | |
3111 "Census for CMS' FreeListSpace") \ | |
3112 \ | |
3113 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
3114 "Delay in ms between expansion and allocation") \ | |
3115 \ | |
6817 | 3116 develop(uintx, GCWorkerDelayMillis, 0, \ |
3117 "Delay in ms in scheduling GC workers") \ | |
3118 \ | |
0 | 3119 product(intx, DeferThrSuspendLoopCount, 4000, \ |
3120 "(Unstable) Number of times to iterate in safepoint loop " \ | |
3121 " before blocking VM threads ") \ | |
3122 \ | |
3123 product(intx, DeferPollingPageLoopCount, -1, \ | |
3124 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
3125 "before changing safepoint polling page to RO ") \ | |
3126 \ | |
3127 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
3128 \ | |
3129 product(bool, PSChunkLargeArrays, true, \ | |
3130 "true: process large arrays in chunks") \ | |
3131 \ | |
3132 product(uintx, GCDrainStackTargetSize, 64, \ | |
3133 "how many entries we'll try to leave on the stack during " \ | |
3134 "parallel GC") \ | |
3135 \ | |
3136 /* stack parameters */ \ | |
3137 product_pd(intx, StackYellowPages, \ | |
3138 "Number of yellow zone (recoverable overflows) pages") \ | |
3139 \ | |
3140 product_pd(intx, StackRedPages, \ | |
3141 "Number of red zone (unrecoverable overflows) pages") \ | |
3142 \ | |
3143 product_pd(intx, StackShadowPages, \ | |
3144 "Number of shadow zone (for overflow checking) pages" \ | |
3145 " this should exceed the depth of the VM and native call stack") \ | |
3146 \ | |
3147 product_pd(intx, ThreadStackSize, \ | |
3148 "Thread Stack Size (in Kbytes)") \ | |
3149 \ | |
3150 product_pd(intx, VMThreadStackSize, \ | |
3151 "Non-Java Thread Stack Size (in Kbytes)") \ | |
3152 \ | |
3153 product_pd(intx, CompilerThreadStackSize, \ | |
3154 "Compiler Thread Stack Size (in Kbytes)") \ | |
3155 \ | |
3156 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
3157 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
3158 \ | |
3159 product(uintx, ThreadSafetyMargin, 50*M, \ | |
3160 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
3161 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
3162 "disable this feature") \ | |
3163 \ | |
3164 /* code cache parameters */ \ | |
3165 develop(uintx, CodeCacheSegmentSize, 64, \ | |
3166 "Code cache segment size (in bytes) - smallest unit of " \ | |
3167 "allocation") \ | |
3168 \ | |
3169 develop_pd(intx, CodeEntryAlignment, \ | |
3170 "Code entry alignment for generated code (in bytes)") \ | |
3171 \ | |
1365 | 3172 product_pd(intx, OptoLoopAlignment, \ |
3173 "Align inner loops to zero relative to this modulus") \ | |
3174 \ | |
0 | 3175 product_pd(uintx, InitialCodeCacheSize, \ |
3176 "Initial code cache size (in bytes)") \ | |
3177 \ | |
3178 product_pd(uintx, ReservedCodeCacheSize, \ | |
3179 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
3180 \ | |
3181 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
3182 "When less than X space left, we stop compiling.") \ | |
3183 \ | |
3184 product_pd(uintx, CodeCacheExpansionSize, \ | |
3185 "Code cache expansion size (in bytes)") \ | |
3186 \ | |
3187 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
3188 "Minimum number of segments in a code cache block.") \ | |
3189 \ | |
3190 notproduct(bool, ExitOnFullCodeCache, false, \ | |
3191 "Exit the VM if we fill the code cache.") \ | |
3192 \ | |
4039 | 3193 product(bool, UseCodeCacheFlushing, true, \ |
1202 | 3194 "Attempt to clean the code cache before shutting off compiler") \ |
3195 \ | |
3196 product(intx, MinCodeCacheFlushingInterval, 30, \ | |
3197 "Min number of seconds between code cache cleaning sessions") \ | |
3198 \ | |
3199 product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ | |
3200 "When less than X space left, start code cache cleaning") \ | |
3201 \ | |
0 | 3202 /* interpreter debugging */ \ |
3203 develop(intx, BinarySwitchThreshold, 5, \ | |
3204 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
3205 "switch") \ | |
3206 \ | |
3207 develop(intx, StopInterpreterAt, 0, \ | |
3208 "Stops interpreter execution at specified bytecode number") \ | |
3209 \ | |
3210 develop(intx, TraceBytecodesAt, 0, \ | |
3211 "Traces bytecodes starting with specified bytecode number") \ | |
3212 \ | |
3213 /* compiler interface */ \ | |
3214 develop(intx, CIStart, 0, \ | |
3215 "the id of the first compilation to permit") \ | |
3216 \ | |
3217 develop(intx, CIStop, -1, \ | |
3218 "the id of the last compilation to permit") \ | |
3219 \ | |
3220 develop(intx, CIStartOSR, 0, \ | |
3221 "the id of the first osr compilation to permit " \ | |
3222 "(CICountOSR must be on)") \ | |
3223 \ | |
3224 develop(intx, CIStopOSR, -1, \ | |
3225 "the id of the last osr compilation to permit " \ | |
3226 "(CICountOSR must be on)") \ | |
3227 \ | |
3228 develop(intx, CIBreakAtOSR, -1, \ | |
3229 "id of osr compilation to break at") \ | |
3230 \ | |
3231 develop(intx, CIBreakAt, -1, \ | |
3232 "id of compilation to break at") \ | |
3233 \ | |
3234 product(ccstrlist, CompileOnly, "", \ | |
3235 "List of methods (pkg/class.name) to restrict compilation to") \ | |
3236 \ | |
3237 product(ccstr, CompileCommandFile, NULL, \ | |
3238 "Read compiler commands from this file [.hotspot_compiler]") \ | |
3239 \ | |
3240 product(ccstrlist, CompileCommand, "", \ | |
3241 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
3242 \ | |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3243 develop(bool, ReplayCompiles, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3244 "Enable replay of compilations from ReplayDataFile") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3245 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3246 develop(ccstr, ReplayDataFile, "replay.txt", \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3247 "file containing compilation replay information") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3248 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3249 develop(intx, ReplaySuppressInitializers, 2, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3250 "Controls handling of class initialization during replay" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3251 "0 - don't do anything special" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3252 "1 - treat all class initializers as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3253 "2 - treat class initializers for application classes as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3254 "3 - allow all class initializers to run during bootstrap but" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3255 " pretend they are empty after starting replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3256 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3257 develop(bool, ReplayIgnoreInitErrors, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3258 "Ignore exceptions thrown during initialization for replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3259 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3260 develop(bool, DumpReplayDataOnError, true, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3261 "record replay data for crashing compiler threads") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
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6935
diff
changeset
|
3262 \ |
0 | 3263 product(bool, CICompilerCountPerCPU, false, \ |
3264 "1 compiler thread for log(N CPUs)") \ | |
3265 \ | |
3266 develop(intx, CIFireOOMAt, -1, \ | |
3267 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
3268 "(non-negative value throws OOM after this many CI accesses " \ | |
3269 "in each compile)") \ | |
3270 \ | |
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3271 notproduct(bool, CIObjectFactoryVerify, false, \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3272 "enable potentially expensive verification in ciObjectFactory") \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3273 \ |
0 | 3274 /* Priorities */ \ |
3275 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
3276 \ | |
3277 product(intx, ThreadPriorityPolicy, 0, \ | |
3278 "0 : Normal. "\ | |
3279 " VM chooses priorities that are appropriate for normal "\ | |
3280 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
3281 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
3282 " map to lower native priority values. On Windows applications"\ | |
3283 " are allowed to use higher native priorities. However, with "\ | |
3284 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
3285 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
3286 " interfere with system threads. On Linux thread priorities "\ | |
3287 " are ignored because the OS does not support static priority "\ | |
3288 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
3289 " non-root, non-realtime applications. "\ | |
3290 "1 : Aggressive. "\ | |
3291 " Java thread priorities map over to the entire range of "\ | |
3292 " native thread priorities. Higher Java thread priorities map "\ | |
3293 " to higher native thread priorities. This policy should be "\ | |
3294 " used with care, as sometimes it can cause performance "\ | |
3295 " degradation in the application and/or the entire system. On "\ | |
3296 " Linux this policy requires root privilege.") \ | |
3297 \ | |
3298 product(bool, ThreadPriorityVerbose, false, \ | |
4854
de268c8a8075
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phh
parents:
4807
diff
changeset
|
3299 "Print priority changes") \ |
0 | 3300 \ |
3301 product(intx, DefaultThreadPriority, -1, \ | |
4854
de268c8a8075
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phh
parents:
4807
diff
changeset
|
3302 "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
|
3303 "specified (-1 means no change)") \ |
0 | 3304 \ |
3305 product(intx, CompilerThreadPriority, -1, \ | |
4854
de268c8a8075
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phh
parents:
4807
diff
changeset
|
3306 "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
|
3307 "(-1 means no change)") \ |
0 | 3308 \ |
3309 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
|
3310 "The native priority at which the VM thread should run " \ |
de268c8a8075
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parents:
4807
diff
changeset
|
3311 "(-1 means no change)") \ |
0 | 3312 \ |
3313 product(bool, CompilerThreadHintNoPreempt, true, \ | |
3314 "(Solaris only) Give compiler threads an extra quanta") \ | |
3315 \ | |
3316 product(bool, VMThreadHintNoPreempt, false, \ | |
3317 "(Solaris only) Give VM thread an extra quanta") \ | |
3318 \ | |
3319 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3320 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3321 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3322 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3323 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3324 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3325 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3326 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3327 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3328 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
3329 \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3330 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
|
3331 "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
|
3332 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3333 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
|
3334 "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
|
3335 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3336 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
|
3337 "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
|
3338 \ |
0 | 3339 /* compiler debugging */ \ |
3340 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
3341 "First class to consider when using +CompileTheWorld") \ | |
3342 \ | |
3343 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
3344 "Last class to consider when using +CompileTheWorld") \ | |
3345 \ | |
3346 develop(intx, NewCodeParameter, 0, \ | |
3347 "Testing Only: Create a dedicated integer parameter before " \ | |
3348 "putback") \ | |
3349 \ | |
3350 /* new oopmap storage allocation */ \ | |
3351 develop(intx, MinOopMapAllocation, 8, \ | |
3352 "Minimum number of OopMap entries in an OopMapSet") \ | |
3353 \ | |
3354 /* Background Compilation */ \ | |
3355 develop(intx, LongCompileThreshold, 50, \ | |
3356 "Used with +TraceLongCompiles") \ | |
3357 \ | |
3358 product(intx, StarvationMonitorInterval, 200, \ | |
3359 "Pause between each check in ms") \ | |
3360 \ | |
3361 /* recompilation */ \ | |
3362 product_pd(intx, CompileThreshold, \ | |
3363 "number of interpreted method invocations before (re-)compiling") \ | |
3364 \ | |
3365 product_pd(intx, BackEdgeThreshold, \ | |
3366 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
3367 \ | |
1783 | 3368 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
3369 "Interpreter (tier 0) invocation notification frequency.") \ | |
3370 \ | |
3371 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
3372 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3373 \ | |
3374 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
3375 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3376 "frequency.") \ | |
3377 \ | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3378 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3379 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3380 \ |
1783 | 3381 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
3382 "Interpreter (tier 0) invocation notification frequency.") \ | |
3383 \ | |
3384 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
3385 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3386 \ | |
3387 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
3388 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3389 "frequency.") \ | |
3390 \ | |
3391 product(intx, Tier2CompileThreshold, 0, \ | |
3392 "threshold at which tier 2 compilation is invoked") \ | |
3393 \ | |
3394 product(intx, Tier2BackEdgeThreshold, 0, \ | |
3395 "Back edge threshold at which tier 2 compilation is invoked") \ | |
3396 \ | |
3397 product(intx, Tier3InvocationThreshold, 200, \ | |
3398 "Compile if number of method invocations crosses this " \ | |
3399 "threshold") \ | |
3400 \ | |
3401 product(intx, Tier3MinInvocationThreshold, 100, \ | |
3402 "Minimum invocation to compile at tier 3") \ | |
3403 \ | |
3404 product(intx, Tier3CompileThreshold, 2000, \ | |
3405 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
3406 "minimum must be satisfied.") \ | |
3407 \ | |
4819 | 3408 product(intx, Tier3BackEdgeThreshold, 60000, \ |
1783 | 3409 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
3410 \ | |
3411 product(intx, Tier4InvocationThreshold, 5000, \ | |
3412 "Compile if number of method invocations crosses this " \ | |
3413 "threshold") \ | |
3414 \ | |
3415 product(intx, Tier4MinInvocationThreshold, 600, \ | |
3416 "Minimum invocation to compile at tier 4") \ | |
3417 \ | |
3418 product(intx, Tier4CompileThreshold, 15000, \ | |
3419 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
3420 "minimum must be satisfied.") \ | |
3421 \ | |
3422 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
3423 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
3424 \ | |
3425 product(intx, Tier3DelayOn, 5, \ | |
3426 "If C2 queue size grows over this amount per compiler thread " \ | |
3427 "stop compiling at tier 3 and start compiling at tier 2") \ | |
3428 \ | |
3429 product(intx, Tier3DelayOff, 2, \ | |
3430 "If C2 queue size is less than this amount per compiler thread " \ | |
3431 "allow methods compiled at tier 2 transition to tier 3") \ | |
3432 \ | |
3433 product(intx, Tier3LoadFeedback, 5, \ | |
3434 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
3435 "reaches this amount per compiler thread") \ | |
3436 \ | |
3437 product(intx, Tier4LoadFeedback, 3, \ | |
3438 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
3439 "reaches this amount per compiler thread") \ | |
3440 \ | |
3441 product(intx, TieredCompileTaskTimeout, 50, \ | |
3442 "Kill compile task if method was not used within " \ | |
3443 "given timeout in milliseconds") \ | |
3444 \ | |
3445 product(intx, TieredStopAtLevel, 4, \ | |
3446 "Stop at given compilation level") \ | |
3447 \ | |
3448 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
3449 "Start profiling in interpreter if the counters exceed tier 3" \ | |
3450 "thresholds by the specified percentage") \ | |
3451 \ | |
3452 product(intx, TieredRateUpdateMinTime, 1, \ | |
3453 "Minimum rate sampling interval (in milliseconds)") \ | |
3454 \ | |
3455 product(intx, TieredRateUpdateMaxTime, 25, \ | |
3456 "Maximum rate sampling interval (in milliseconds)") \ | |
0 | 3457 \ |
3458 product_pd(bool, TieredCompilation, \ | |
1783 | 3459 "Enable tiered compilation") \ |
3460 \ | |
3461 product(bool, PrintTieredEvents, false, \ | |
3462 "Print tiered events notifications") \ | |
0 | 3463 \ |
3464 product_pd(intx, OnStackReplacePercentage, \ | |
3465 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3466 "of CompileThreshold) before (re-)compiling OSR code") \ | |
3467 \ | |
3468 product(intx, InterpreterProfilePercentage, 33, \ | |
3469 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3470 "of CompileThreshold) before profiling in the interpreter") \ | |
3471 \ | |
3472 develop(intx, MaxRecompilationSearchLength, 10, \ | |
3473 "max. # frames to inspect searching for recompilee") \ | |
3474 \ | |
3475 develop(intx, MaxInterpretedSearchLength, 3, \ | |
3476 "max. # interp. frames to skip when searching for recompilee") \ | |
3477 \ | |
3478 develop(intx, DesiredMethodLimit, 8000, \ | |
3479 "desired max. method size (in bytecodes) after inlining") \ | |
3480 \ | |
3481 develop(intx, HugeMethodLimit, 8000, \ | |
3482 "don't compile methods larger than this if " \ | |
3483 "+DontCompileHugeMethods") \ | |
3484 \ | |
3485 /* New JDK 1.4 reflection implementation */ \ | |
3486 \ | |
3487 develop(bool, UseNewReflection, true, \ | |
3488 "Temporary flag for transition to reflection based on dynamic " \ | |
3489 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
3490 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
3491 "changes were needed") \ | |
3492 \ | |
3493 develop(bool, VerifyReflectionBytecodes, false, \ | |
3494 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
3495 "in situations like that described in 4486457 or for " \ | |
3496 "constructors generated for serialization, so can not be enabled "\ | |
3497 "in product.") \ | |
3498 \ | |
3499 product(bool, ReflectionWrapResolutionErrors, true, \ | |
3500 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
3501 "in InvocationTargetException. See 6531596") \ | |
3502 \ | |
3503 \ | |
3504 develop(intx, FastSuperclassLimit, 8, \ | |
3505 "Depth of hardwired instanceof accelerator array") \ | |
3506 \ | |
3507 /* Properties for Java libraries */ \ | |
3508 \ | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6197
diff
changeset
|
3509 product(uintx, MaxDirectMemorySize, 0, \ |
0 | 3510 "Maximum total size of NIO direct-buffer allocations") \ |
3511 \ | |
3512 /* temporary developer defined flags */ \ | |
3513 \ | |
3514 diagnostic(bool, UseNewCode, false, \ | |
3515 "Testing Only: Use the new version while testing") \ | |
3516 \ | |
3517 diagnostic(bool, UseNewCode2, false, \ | |
3518 "Testing Only: Use the new version while testing") \ | |
3519 \ | |
3520 diagnostic(bool, UseNewCode3, false, \ | |
3521 "Testing Only: Use the new version while testing") \ | |
3522 \ | |
3523 /* flags for performance data collection */ \ | |
3524 \ | |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3525 product(bool, UsePerfData, falseInEmbedded, \ |
0 | 3526 "Flag to disable jvmstat instrumentation for performance testing" \ |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3527 "and problem isolation purposes.") \ |
0 | 3528 \ |
3529 product(bool, PerfDataSaveToFile, false, \ | |
3530 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
3531 \ | |
3532 product(ccstr, PerfDataSaveFile, NULL, \ | |
3533 "Save PerfData memory to the specified absolute pathname," \ | |
3534 "%p in the file name if present will be replaced by pid") \ | |
3535 \ | |
3536 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
3537 "Data sampling interval in milliseconds") \ | |
3538 \ | |
3539 develop(bool, PerfTraceDataCreation, false, \ | |
3540 "Trace creation of Performance Data Entries") \ | |
3541 \ | |
3542 develop(bool, PerfTraceMemOps, false, \ | |
3543 "Trace PerfMemory create/attach/detach calls") \ | |
3544 \ | |
3545 product(bool, PerfDisableSharedMem, false, \ | |
3546 "Store performance data in standard memory") \ | |
3547 \ | |
3548 product(intx, PerfDataMemorySize, 32*K, \ | |
3549 "Size of performance data memory region. Will be rounded " \ | |
3550 "up to a multiple of the native os page size.") \ | |
3551 \ | |
3552 product(intx, PerfMaxStringConstLength, 1024, \ | |
3553 "Maximum PerfStringConstant string length before truncation") \ | |
3554 \ | |
3555 product(bool, PerfAllowAtExitRegistration, false, \ | |
3556 "Allow registration of atexit() methods") \ | |
3557 \ | |
3558 product(bool, PerfBypassFileSystemCheck, false, \ | |
3559 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
3560 \ | |
3561 product(intx, UnguardOnExecutionViolation, 0, \ | |
3562 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
3563 "0=off, 1=conservative, 2=aggressive") \ | |
3564 \ | |
3565 /* Serviceability Support */ \ | |
3566 \ | |
3567 product(bool, ManagementServer, false, \ | |
3568 "Create JMX Management Server") \ | |
3569 \ | |
3570 product(bool, DisableAttachMechanism, false, \ | |
3571 "Disable mechanism that allows tools to attach to this VM") \ | |
3572 \ | |
3573 product(bool, StartAttachListener, false, \ | |
3574 "Always start Attach Listener at VM startup") \ | |
3575 \ | |
3576 manageable(bool, PrintConcurrentLocks, false, \ | |
3577 "Print java.util.concurrent locks in thread dump") \ | |
3578 \ | |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3579 product(bool, TransmitErrorReport, false, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3580 "Enable error report transmission on erroneous termination") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3581 \ |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3582 product(ccstr, ErrorReportServer, NULL, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3583 "Override built-in error report server address") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3584 \ |
0 | 3585 /* Shared spaces */ \ |
3586 \ | |
3587 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
|
3588 "Use shared spaces for metadata") \ |
0 | 3589 \ |
3590 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
|
3591 "Require shared spaces for metadata") \ |
0 | 3592 \ |
3593 product(bool, DumpSharedSpaces, false, \ | |
3594 "Special mode: JVM reads a class list, loads classes, builds " \ | |
3595 "shared spaces, and dumps the shared spaces to a file to be " \ | |
3596 "used in future JVM runs.") \ | |
3597 \ | |
3598 product(bool, PrintSharedSpaces, false, \ | |
3599 "Print usage of shared spaces") \ | |
3600 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3601 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
|
3602 "Size of read-write space for metadata (in bytes)") \ |
0 | 3603 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3604 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
|
3605 "Size of read-only space for metadata (in bytes)") \ |
0 | 3606 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3607 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
|
3608 "Size of the shared miscellaneous data area (in bytes)") \ |
0 | 3609 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3610 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
|
3611 "Size of the shared miscellaneous code area (in bytes)") \ |
0 | 3612 \ |
8804
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3613 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3614 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
|
3615 "Address to allocate shared memory region for class data") \ |
0 | 3616 \ |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3617 diagnostic(bool, EnableInvokeDynamic, true, \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3618 "support JSR 292 (method handles, invokedynamic, " \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3619 "anonymous classes") \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3620 \ |
3449
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3621 diagnostic(bool, PrintMethodHandleStubs, false, \ |
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3622 "Print generated stub code for method handles") \ |
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3623 \ |
710 | 3624 develop(bool, TraceMethodHandles, false, \ |
3625 "trace internal method handle operations") \ | |
3626 \ | |
3627 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
3628 "perform extra checks when constructing method handles") \ | |
3629 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3630 diagnostic(bool, ShowHiddenFrames, false, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3631 "show method handle implementation frames (usually hidden)") \ |
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3632 \ |
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3633 experimental(bool, TrustFinalNonStaticFields, false, \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3634 "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
|
3635 \ |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3636 develop(bool, TraceInvokeDynamic, false, \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3637 "trace internal invoke dynamic operations") \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3638 \ |
0 | 3639 diagnostic(bool, PauseAtStartup, false, \ |
3640 "Causes the VM to pause at startup time and wait for the pause " \ | |
3641 "file to be removed (default: ./vm.paused.<pid>)") \ | |
3642 \ | |
3643 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
3644 "The file to create and for whose removal to await when pausing " \ | |
3645 "at startup. (default: ./vm.paused.<pid>)") \ | |
3646 \ | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3647 diagnostic(bool, PauseAtExit, false, \ |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3648 "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
|
3649 \ |
0 | 3650 product(bool, ExtendedDTraceProbes, false, \ |
3651 "Enable performance-impacting dtrace probes") \ | |
3652 \ | |
3653 product(bool, DTraceMethodProbes, false, \ | |
3654 "Enable dtrace probes for method-entry and method-exit") \ | |
3655 \ | |
3656 product(bool, DTraceAllocProbes, false, \ | |
3657 "Enable dtrace probes for object allocation") \ | |
3658 \ | |
3659 product(bool, DTraceMonitorProbes, false, \ | |
3660 "Enable dtrace probes for monitor events") \ | |
3661 \ | |
3662 product(bool, RelaxAccessControlCheck, false, \ | |
3663 "Relax the access control checks in the verifier") \ | |
3664 \ | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3665 diagnostic(bool, PrintDTraceDOF, false, \ |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3666 "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
|
3667 \ |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6935
diff
changeset
|
3668 product(uintx, StringTableSize, defaultStringTableSize, \ |
2378 | 3669 "Number of buckets in the interned String table") \ |
3670 \ | |
6934 | 3671 develop(bool, TraceDefaultMethods, false, \ |
3672 "Trace the default method processing steps") \ | |
3673 \ | |
3674 develop(bool, ParseAllGenericSignatures, false, \ | |
3675 "Parse all generic signatures while classloading") \ | |
3676 \ | |
3677 develop(bool, VerifyGenericSignatures, false, \ | |
3678 "Abort VM on erroneous or inconsistent generic signatures") \ | |
3679 \ | |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3680 product(bool, UseVMInterruptibleIO, false, \ |
0 | 3681 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3682 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
5915 | 3683 " of this flag is true for JDK 6 and earlier") \ |
3684 \ | |
3685 diagnostic(bool, WhiteBoxAPI, false, \ | |
6064
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3686 "Enable internal testing APIs") \ |
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3687 \ |
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3688 product(bool, PrintGCCause, true, \ |
8702 | 3689 "Include GC cause in GC logging") \ |
3690 \ | |
9073
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3691 product(bool , AllowNonVirtualCalls, false, \ |
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3692 "Obey the ACC_SUPER flag and allow invokenonvirtual calls") \ |
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3693 \ |
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3694 experimental(uintx, ArrayAllocatorMallocLimit, \ |
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3695 SOLARIS_ONLY(64*K) NOT_SOLARIS(max_uintx), \ |
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3696 "Allocation less than this value will be allocated " \ |
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3697 "using malloc. Larger allocations will use mmap.") |
0 | 3698 |
3699 /* | |
3700 * Macros for factoring of globals | |
3701 */ | |
3702 | |
3703 // Interface macros | |
3704 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3705 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; | |
3706 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; | |
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3707 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3708 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
3709 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; | |
3710 #ifdef PRODUCT | |
3711 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; | |
3712 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; | |
3713 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3714 #else | |
3715 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; | |
3716 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; | |
3717 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3718 #endif | |
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3719 // Special LP64 flags, product only needed for now. |
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3720 #ifdef _LP64 |
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3721 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
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3722 #else |
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3723 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
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3724 #endif // _LP64 |
0 | 3725 |
3726 // Implementation macros | |
3727 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; | |
3728 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; | |
3729 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; | |
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3730 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
0 | 3731 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
3732 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; | |
3733 #ifdef PRODUCT | |
3734 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ | |
3735 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ | |
3736 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3737 #else | |
3738 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; | |
3739 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; | |
3740 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; | |
3741 #endif | |
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3742 #ifdef _LP64 |
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3743 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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3744 #else |
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3745 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
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3746 #endif // _LP64 |
0 | 3747 |
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3748 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 | 3749 |
3750 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
1972 | 3751 |
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3752 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) |
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3753 |
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3754 // Extensions |
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3755 |
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3756 #include "runtime/globals_ext.hpp" |
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3757 |
1972 | 3758 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |