Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.hpp @ 6266:1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
author | twisti |
---|---|
date | Tue, 24 Jul 2012 10:51:00 -0700 |
parents | 3f1ab0c19c30 |
children | 957c266d8bc5 fce6d7280776 |
rev | line source |
---|---|
0 | 1 /* |
4868 | 2 * Copyright (c) 1997, 2012, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1544
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1544
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1544
diff
changeset
|
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 | |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
49 #ifdef TARGET_ARCH_arm |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
50 # include "globals_arm.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
51 #endif |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
52 #ifdef TARGET_ARCH_ppc |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
53 # include "globals_ppc.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
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 | |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
85 #ifdef TARGET_OS_ARCH_linux_arm |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
86 # include "globals_linux_arm.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
87 #endif |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
88 #ifdef TARGET_OS_ARCH_linux_ppc |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
89 # include "globals_linux_ppc.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
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 | |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
104 #ifdef TARGET_ARCH_arm |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
105 # include "c1_globals_arm.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
106 #endif |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
107 #ifdef TARGET_ARCH_ppc |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
108 # include "c1_globals_ppc.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
109 #endif |
1972 | 110 #ifdef TARGET_OS_FAMILY_linux |
111 # include "c1_globals_linux.hpp" | |
112 #endif | |
113 #ifdef TARGET_OS_FAMILY_solaris | |
114 # include "c1_globals_solaris.hpp" | |
115 #endif | |
116 #ifdef TARGET_OS_FAMILY_windows | |
117 # include "c1_globals_windows.hpp" | |
118 #endif | |
3960 | 119 #ifdef TARGET_OS_FAMILY_bsd |
120 # include "c1_globals_bsd.hpp" | |
121 #endif | |
1972 | 122 #endif |
123 #ifdef COMPILER2 | |
124 #ifdef TARGET_ARCH_x86 | |
125 # include "c2_globals_x86.hpp" | |
126 #endif | |
127 #ifdef TARGET_ARCH_sparc | |
128 # include "c2_globals_sparc.hpp" | |
129 #endif | |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
130 #ifdef TARGET_ARCH_arm |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
131 # include "c2_globals_arm.hpp" |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
132 #endif |
1972 | 133 #ifdef TARGET_OS_FAMILY_linux |
134 # include "c2_globals_linux.hpp" | |
135 #endif | |
136 #ifdef TARGET_OS_FAMILY_solaris | |
137 # include "c2_globals_solaris.hpp" | |
138 #endif | |
139 #ifdef TARGET_OS_FAMILY_windows | |
140 # include "c2_globals_windows.hpp" | |
141 #endif | |
3960 | 142 #ifdef TARGET_OS_FAMILY_bsd |
143 # include "c2_globals_bsd.hpp" | |
144 #endif | |
1972 | 145 #endif |
146 #ifdef SHARK | |
147 #ifdef TARGET_ARCH_zero | |
148 # include "shark_globals_zero.hpp" | |
149 #endif | |
150 #endif | |
151 | |
1692 | 152 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) |
0 | 153 define_pd_global(bool, BackgroundCompilation, false); |
154 define_pd_global(bool, UseTLAB, false); | |
155 define_pd_global(bool, CICompileOSR, false); | |
156 define_pd_global(bool, UseTypeProfile, false); | |
157 define_pd_global(bool, UseOnStackReplacement, false); | |
158 define_pd_global(bool, InlineIntrinsics, false); | |
159 define_pd_global(bool, PreferInterpreterNativeStubs, true); | |
160 define_pd_global(bool, ProfileInterpreter, false); | |
161 define_pd_global(bool, ProfileTraps, false); | |
162 define_pd_global(bool, TieredCompilation, false); | |
163 | |
164 define_pd_global(intx, CompileThreshold, 0); | |
165 define_pd_global(intx, BackEdgeThreshold, 0); | |
166 | |
167 define_pd_global(intx, OnStackReplacePercentage, 0); | |
168 define_pd_global(bool, ResizeTLAB, false); | |
169 define_pd_global(intx, FreqInlineSize, 0); | |
1064 | 170 define_pd_global(intx, InlineSmallCode, 0); |
0 | 171 define_pd_global(intx, NewSizeThreadIncrease, 4*K); |
172 define_pd_global(intx, InlineClassNatives, true); | |
173 define_pd_global(intx, InlineUnsafeOps, true); | |
174 define_pd_global(intx, InitialCodeCacheSize, 160*K); | |
175 define_pd_global(intx, ReservedCodeCacheSize, 32*M); | |
176 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
177 define_pd_global(intx, CodeCacheMinBlockLength, 1); | |
178 define_pd_global(uintx,PermSize, ScaleForWordSize(4*M)); | |
179 define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M)); | |
180 define_pd_global(bool, NeverActAsServerClassMachine, true); | |
1064 | 181 define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
0 | 182 #define CI_COMPILER_COUNT 0 |
183 #else | |
184 | |
185 #ifdef COMPILER2 | |
186 #define CI_COMPILER_COUNT 2 | |
187 #else | |
188 #define CI_COMPILER_COUNT 1 | |
189 #endif // COMPILER2 | |
190 | |
191 #endif // no compilers | |
192 | |
193 // string type aliases used only in this file | |
194 typedef const char* ccstr; | |
195 typedef const char* ccstrlist; // represents string arguments which accumulate | |
196 | |
197 enum FlagValueOrigin { | |
198 DEFAULT = 0, | |
199 COMMAND_LINE = 1, | |
200 ENVIRON_VAR = 2, | |
201 CONFIG_FILE = 3, | |
202 MANAGEMENT = 4, | |
203 ERGONOMIC = 5, | |
204 ATTACH_ON_DEMAND = 6, | |
205 INTERNAL = 99 | |
206 }; | |
207 | |
208 struct Flag { | |
209 const char *type; | |
210 const char *name; | |
211 void* addr; | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
212 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
213 NOT_PRODUCT(const char *doc;) |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
214 |
0 | 215 const char *kind; |
216 FlagValueOrigin origin; | |
217 | |
218 // points to all Flags static array | |
219 static Flag *flags; | |
220 | |
221 // number of flags | |
222 static size_t numFlags; | |
223 | |
5947
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
224 static Flag* find_flag(char* name, size_t length, bool allow_locked = false); |
0 | 225 |
226 bool is_bool() const { return strcmp(type, "bool") == 0; } | |
227 bool get_bool() const { return *((bool*) addr); } | |
228 void set_bool(bool value) { *((bool*) addr) = value; } | |
229 | |
230 bool is_intx() const { return strcmp(type, "intx") == 0; } | |
231 intx get_intx() const { return *((intx*) addr); } | |
232 void set_intx(intx value) { *((intx*) addr) = value; } | |
233 | |
234 bool is_uintx() const { return strcmp(type, "uintx") == 0; } | |
235 uintx get_uintx() const { return *((uintx*) addr); } | |
236 void set_uintx(uintx value) { *((uintx*) addr) = value; } | |
237 | |
1064 | 238 bool is_uint64_t() const { return strcmp(type, "uint64_t") == 0; } |
239 uint64_t get_uint64_t() const { return *((uint64_t*) addr); } | |
240 void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; } | |
241 | |
0 | 242 bool is_double() const { return strcmp(type, "double") == 0; } |
243 double get_double() const { return *((double*) addr); } | |
244 void set_double(double value) { *((double*) addr) = value; } | |
245 | |
246 bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; } | |
247 bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; } | |
248 ccstr get_ccstr() const { return *((ccstr*) addr); } | |
249 void set_ccstr(ccstr value) { *((ccstr*) addr) = value; } | |
250 | |
251 bool is_unlocker() const; | |
252 bool is_unlocked() const; | |
253 bool is_writeable() const; | |
254 bool is_external() const; | |
255 | |
4107
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
256 bool is_unlocker_ext() const; |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
257 bool is_unlocked_ext() const; |
4715
6c995c08526c
7122880: Extend vendor-specific command interface to include manageable switches
phh
parents:
4125
diff
changeset
|
258 bool is_writeable_ext() const; |
6c995c08526c
7122880: Extend vendor-specific command interface to include manageable switches
phh
parents:
4125
diff
changeset
|
259 bool is_external_ext() const; |
4107
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
260 |
5947
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
261 void get_locked_message(char*, int) const; |
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
262 void get_locked_message_ext(char*, int) const; |
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
263 |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
264 void print_on(outputStream* st, bool withComments = false ); |
0 | 265 void print_as_flag(outputStream* st); |
266 }; | |
267 | |
268 // debug flags control various aspects of the VM and are global accessible | |
269 | |
270 // use FlagSetting to temporarily change some debug flag | |
271 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
272 // restored to previous value upon leaving scope | |
273 class FlagSetting { | |
274 bool val; | |
275 bool* flag; | |
276 public: | |
277 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
278 ~FlagSetting() { *flag = val; } | |
279 }; | |
280 | |
281 | |
282 class CounterSetting { | |
283 intx* counter; | |
284 public: | |
285 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
286 ~CounterSetting() { (*counter)--; } | |
287 }; | |
288 | |
289 | |
290 class IntFlagSetting { | |
291 intx val; | |
292 intx* flag; | |
293 public: | |
294 IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; } | |
295 ~IntFlagSetting() { *flag = val; } | |
296 }; | |
297 | |
298 | |
299 class DoubleFlagSetting { | |
300 double val; | |
301 double* flag; | |
302 public: | |
303 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
304 ~DoubleFlagSetting() { *flag = val; } | |
305 }; | |
306 | |
307 | |
308 class CommandLineFlags { | |
309 public: | |
310 static bool boolAt(char* name, size_t len, bool* value); | |
311 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
312 static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin); | |
313 static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); } | |
314 | |
315 static bool intxAt(char* name, size_t len, intx* value); | |
316 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
317 static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin); | |
318 static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); } | |
319 | |
320 static bool uintxAt(char* name, size_t len, uintx* value); | |
321 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
322 static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin); | |
323 static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); } | |
324 | |
1064 | 325 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
326 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
327 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin); | |
328 static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); } | |
329 | |
0 | 330 static bool doubleAt(char* name, size_t len, double* value); |
331 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
332 static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin); | |
333 static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); } | |
334 | |
335 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
336 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
337 static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin); | |
338 static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); } | |
339 | |
340 // Returns false if name is not a command line flag. | |
341 static bool wasSetOnCmdline(const char* name, bool* value); | |
4773 | 342 static void printSetFlags(outputStream* out); |
0 | 343 |
4773 | 344 static void printFlags(outputStream* out, bool withComments); |
0 | 345 |
346 static void verify() PRODUCT_RETURN; | |
347 }; | |
348 | |
349 // use this for flags that are true by default in the debug version but | |
350 // false in the optimized version, and vice versa | |
351 #ifdef ASSERT | |
352 #define trueInDebug true | |
353 #define falseInDebug false | |
354 #else | |
355 #define trueInDebug false | |
356 #define falseInDebug true | |
357 #endif | |
358 | |
359 // use this for flags that are true per default in the product build | |
360 // but false in development builds, and vice versa | |
361 #ifdef PRODUCT | |
362 #define trueInProduct true | |
363 #define falseInProduct false | |
364 #else | |
365 #define trueInProduct false | |
366 #define falseInProduct true | |
367 #endif | |
368 | |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
369 #ifdef JAVASE_EMBEDDED |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
370 #define falseInEmbedded false |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
371 #else |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
372 #define falseInEmbedded true |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
373 #endif |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
374 |
0 | 375 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
376 // product flags are always settable / visible | |
377 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
378 | |
379 // A flag must be declared with one of the following types: | |
380 // bool, intx, uintx, ccstr. | |
381 // The type "ccstr" is an alias for "const char*" and is used | |
382 // only in this file, because the macrology requires single-token type names. | |
383 | |
384 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
385 // They are to be used for VM quality assurance or field diagnosis | |
386 // of VM bugs. They are hidden so that users will not be encouraged to | |
387 // try them as if they were VM ordinary execution options. However, they | |
388 // are available in the product version of the VM. Under instruction | |
389 // from support engineers, VM customers can turn them on to collect | |
390 // diagnostic information about VM problems. To use a VM diagnostic | |
391 // option, you must first specify +UnlockDiagnosticVMOptions. | |
392 // (This master switch also affects the behavior of -Xprintflags.) | |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
393 // |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
394 // experimental flags are in support of features that are not |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
395 // part of the officially supported product, but are available |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
396 // for experimenting with. They could, for example, be performance |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
397 // features that may not have undergone full or rigorous QA, but which may |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
398 // help performance in some cases and released for experimentation |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
399 // by the community of users and developers. This flag also allows one to |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
400 // be able to build a fully supported product that nonetheless also |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
401 // ships with some unsupported, lightly tested, experimental features. |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
402 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
403 // UnlockExperimentalVMOptions flag, which allows the control and |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
404 // modification of the experimental flags. |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
405 // |
1837
c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents:
1836
diff
changeset
|
406 // Nota bene: neither diagnostic nor experimental options should be used casually, |
c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents:
1836
diff
changeset
|
407 // and they are not supported on production loads, except under explicit |
c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents:
1836
diff
changeset
|
408 // direction from support engineers. |
c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents:
1836
diff
changeset
|
409 // |
0 | 410 // manageable flags are writeable external product flags. |
411 // They are dynamically writeable through the JDK management interface | |
412 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
413 // These flags are external exported interface (see CCC). The list of | |
414 // manageable flags can be queried programmatically through the management | |
415 // interface. | |
416 // | |
417 // A flag can be made as "manageable" only if | |
418 // - the flag is defined in a CCC as an external exported interface. | |
419 // - the VM implementation supports dynamic setting of the flag. | |
420 // This implies that the VM must *always* query the flag variable | |
421 // and not reuse state related to the flag state at any given time. | |
422 // - you want the flag to be queried programmatically by the customers. | |
423 // | |
424 // product_rw flags are writeable internal product flags. | |
425 // They are like "manageable" flags but for internal/private use. | |
426 // The list of product_rw flags are internal/private flags which | |
427 // may be changed/removed in a future release. It can be set | |
428 // through the management interface to get/set value | |
429 // when the name of flag is supplied. | |
430 // | |
431 // A flag can be made as "product_rw" only if | |
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 // | |
436 // Note that when there is a need to support develop flags to be writeable, | |
437 // it can be done in the same way as product_rw. | |
438 | |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
439 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
440 \ |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
441 lp64_product(bool, UseCompressedOops, false, \ |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
442 "Use 32-bit object references in 64-bit VM. " \ |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
443 "lp64_product means flag is always constant in 32 bit VM") \ |
0 | 444 \ |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
615
diff
changeset
|
445 notproduct(bool, CheckCompressedOops, true, \ |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
615
diff
changeset
|
446 "generate checks in encoding/decoding code in debug VM") \ |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
615
diff
changeset
|
447 \ |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
615
diff
changeset
|
448 product_pd(uintx, HeapBaseMinAddress, \ |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
615
diff
changeset
|
449 "OS specific low limit for heap base address") \ |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
615
diff
changeset
|
450 \ |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
615
diff
changeset
|
451 diagnostic(bool, PrintCompressedOopsMode, false, \ |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
615
diff
changeset
|
452 "Print compressed oops base address and encoding mode") \ |
325
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
300
diff
changeset
|
453 \ |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1544
diff
changeset
|
454 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1544
diff
changeset
|
455 "Default object alignment in bytes, 8 is minimum") \ |
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1544
diff
changeset
|
456 \ |
0 | 457 /* UseMembar is theoretically a temp flag used for memory barrier \ |
458 * removal testing. It was supposed to be removed before FCS but has \ | |
459 * been re-added (see 6401008) */ \ | |
1868
3dc12ef8735e
6989297: Integrate additional portability improvements
bobv
parents:
1796
diff
changeset
|
460 product_pd(bool, UseMembar, \ |
0 | 461 "(Unstable) Issues membars on thread state transitions") \ |
462 \ | |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
463 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
464 * that don't support it. This will be replaced by processor detection \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
465 * logic. \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
466 */ \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
467 product(bool, UsePPCLWSYNC, true, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
468 "Use lwsync instruction if true, else use slower sync") \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
469 \ |
3799
48048b59a551
7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents:
3797
diff
changeset
|
470 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
48048b59a551
7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents:
3797
diff
changeset
|
471 "Whether to clean the chunk pool asynchronously") \ |
48048b59a551
7061204: clean the chunk table synchronously in embedded builds
jcoomes
parents:
3797
diff
changeset
|
472 \ |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
473 /* Temporary: See 6948537 */ \ |
1518
3bfae429e2cf
6948537: CMS: BOT walkers observe out-of-thin-air zeros on sun4v sparc/CMT
ysr
parents:
1490
diff
changeset
|
474 experimental(bool, UseMemSetInBOT, true, \ |
3bfae429e2cf
6948537: CMS: BOT walkers observe out-of-thin-air zeros on sun4v sparc/CMT
ysr
parents:
1490
diff
changeset
|
475 "(Unstable) uses memset in BOT updates in GC code") \ |
3bfae429e2cf
6948537: CMS: BOT walkers observe out-of-thin-air zeros on sun4v sparc/CMT
ysr
parents:
1490
diff
changeset
|
476 \ |
0 | 477 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
478 "Enable normal processing of flags relating to field diagnostics")\ |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
479 \ |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
480 experimental(bool, UnlockExperimentalVMOptions, false, \ |
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
481 "Enable normal processing of flags relating to experimental features")\ |
0 | 482 \ |
483 product(bool, JavaMonitorsInStackTrace, true, \ | |
484 "Print info. about Java monitor locks when the stacks are dumped")\ | |
485 \ | |
486 product_pd(bool, UseLargePages, \ | |
487 "Use large page memory") \ | |
488 \ | |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
377
diff
changeset
|
489 product_pd(bool, UseLargePagesIndividualAllocation, \ |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
377
diff
changeset
|
490 "Allocate large pages individually for better affinity") \ |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
377
diff
changeset
|
491 \ |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
377
diff
changeset
|
492 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
377
diff
changeset
|
493 "Fail large pages individual allocation") \ |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
377
diff
changeset
|
494 \ |
0 | 495 develop(bool, TracePageSizes, false, \ |
496 "Trace page size selection and usage.") \ | |
497 \ | |
498 product(bool, UseNUMA, false, \ | |
499 "Use NUMA if available") \ | |
500 \ | |
3885 | 501 product(bool, UseNUMAInterleaving, false, \ |
502 "Interleave memory across NUMA nodes if available") \ | |
503 \ | |
504 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
505 "Granularity to use for NUMA interleaving on Windows OS") \ | |
506 \ | |
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
455
diff
changeset
|
507 product(bool, ForceNUMA, false, \ |
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
455
diff
changeset
|
508 "Force NUMA optimizations on single-node/UMA systems") \ |
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
455
diff
changeset
|
509 \ |
0 | 510 product(intx, NUMAChunkResizeWeight, 20, \ |
511 "Percentage (0-100) used to weight the current sample when " \ | |
512 "computing exponentially decaying average for " \ | |
513 "AdaptiveNUMAChunkSizing") \ | |
514 \ | |
515 product(intx, NUMASpaceResizeRate, 1*G, \ | |
516 "Do not reallocate more that this amount per collection") \ | |
517 \ | |
518 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
519 "Enable adaptive chunk sizing for NUMA") \ | |
520 \ | |
521 product(bool, NUMAStats, false, \ | |
522 "Print NUMA stats in detailed heap information") \ | |
523 \ | |
524 product(intx, NUMAPageScanRate, 256, \ | |
525 "Maximum number of pages to include in the page scan procedure") \ | |
526 \ | |
527 product_pd(bool, NeedsDeoptSuspend, \ | |
528 "True for register window machines (sparc/ia64)") \ | |
529 \ | |
530 product(intx, UseSSE, 99, \ | |
531 "Highest supported SSE instructions set on x86/x64") \ | |
532 \ | |
4759 | 533 product(intx, UseAVX, 99, \ |
534 "Highest supported AVX instructions set on x86/x64") \ | |
535 \ | |
3804 | 536 product(intx, UseVIS, 99, \ |
537 "Highest supported VIS instructions set on Sparc") \ | |
538 \ | |
0 | 539 product(uintx, LargePageSizeInBytes, 0, \ |
540 "Large page size (0 to let VM choose the page size") \ | |
541 \ | |
542 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
543 "Use large pages if max heap is at least this big") \ | |
544 \ | |
545 product(bool, ForceTimeHighResolution, false, \ | |
546 "Using high time resolution(For Win32 only)") \ | |
547 \ | |
548 develop(bool, TraceItables, false, \ | |
549 "Trace initialization and use of itables") \ | |
550 \ | |
551 develop(bool, TracePcPatching, false, \ | |
552 "Trace usage of frame::patch_pc") \ | |
553 \ | |
554 develop(bool, TraceJumps, false, \ | |
555 "Trace assembly jumps in thread ring buffer") \ | |
556 \ | |
557 develop(bool, TraceRelocator, false, \ | |
558 "Trace the bytecode relocator") \ | |
559 \ | |
560 develop(bool, TraceLongCompiles, false, \ | |
561 "Print out every time compilation is longer than " \ | |
562 "a given threashold") \ | |
563 \ | |
564 develop(bool, SafepointALot, false, \ | |
565 "Generates a lot of safepoints. Works with " \ | |
566 "GuaranteedSafepointInterval") \ | |
567 \ | |
568 product_pd(bool, BackgroundCompilation, \ | |
569 "A thread requesting compilation is not blocked during " \ | |
570 "compilation") \ | |
571 \ | |
572 product(bool, PrintVMQWaitTime, false, \ | |
573 "Prints out the waiting time in VM operation queue") \ | |
574 \ | |
575 develop(bool, BailoutToInterpreterForThrows, false, \ | |
576 "Compiled methods which throws/catches exceptions will be " \ | |
577 "deopt and intp.") \ | |
578 \ | |
579 develop(bool, NoYieldsInMicrolock, false, \ | |
580 "Disable yields in microlock") \ | |
581 \ | |
582 develop(bool, TraceOopMapGeneration, false, \ | |
583 "Shows oopmap generation") \ | |
584 \ | |
585 product(bool, MethodFlushing, true, \ | |
586 "Reclamation of zombie and not-entrant methods") \ | |
587 \ | |
588 develop(bool, VerifyStack, false, \ | |
589 "Verify stack of each thread when it is entering a runtime call") \ | |
590 \ | |
4059
44ce519bc3d1
7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents:
4039
diff
changeset
|
591 diagnostic(bool, ForceUnreachable, false, \ |
44ce519bc3d1
7104960: JSR 292: +VerifyMethodHandles in product JVM can overflow buffer
never
parents:
4039
diff
changeset
|
592 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ |
0 | 593 \ |
594 notproduct(bool, StressDerivedPointers, false, \ | |
595 "Force scavenge when a derived pointers is detected on stack " \ | |
596 "after rtm call") \ | |
597 \ | |
598 develop(bool, TraceDerivedPointers, false, \ | |
599 "Trace traversal of derived pointers on stack") \ | |
600 \ | |
601 notproduct(bool, TraceCodeBlobStacks, false, \ | |
602 "Trace stack-walk of codeblobs") \ | |
603 \ | |
604 product(bool, PrintJNIResolving, false, \ | |
605 "Used to implement -v:jni") \ | |
606 \ | |
607 notproduct(bool, PrintRewrites, false, \ | |
608 "Print methods that are being rewritten") \ | |
609 \ | |
610 product(bool, UseInlineCaches, true, \ | |
611 "Use Inline Caches for virtual calls ") \ | |
612 \ | |
613 develop(bool, InlineArrayCopy, true, \ | |
614 "inline arraycopy native that is known to be part of " \ | |
615 "base library DLL") \ | |
616 \ | |
617 develop(bool, InlineObjectHash, true, \ | |
618 "inline Object::hashCode() native that is known to be part " \ | |
619 "of base library DLL") \ | |
620 \ | |
621 develop(bool, InlineObjectCopy, true, \ | |
622 "inline Object.clone and Arrays.copyOf[Range] intrinsics") \ | |
623 \ | |
624 develop(bool, InlineNatives, true, \ | |
625 "inline natives that are known to be part of base library DLL") \ | |
626 \ | |
627 develop(bool, InlineMathNatives, true, \ | |
628 "inline SinD, CosD, etc.") \ | |
629 \ | |
630 develop(bool, InlineClassNatives, true, \ | |
631 "inline Class.isInstance, etc") \ | |
632 \ | |
633 develop(bool, InlineThreadNatives, true, \ | |
634 "inline Thread.currentThread, etc") \ | |
635 \ | |
636 develop(bool, InlineReflectionGetCallerClass, true, \ | |
637 "inline sun.reflect.Reflection.getCallerClass(), known to be part "\ | |
638 "of base library DLL") \ | |
639 \ | |
640 develop(bool, InlineUnsafeOps, true, \ | |
641 "inline memory ops (native methods) from sun.misc.Unsafe") \ | |
642 \ | |
643 develop(bool, ConvertCmpD2CmpF, true, \ | |
644 "Convert cmpD to cmpF when one input is constant in float range") \ | |
645 \ | |
646 develop(bool, ConvertFloat2IntClipping, true, \ | |
647 "Convert float2int clipping idiom to integer clipping") \ | |
648 \ | |
649 develop(bool, SpecialStringCompareTo, true, \ | |
650 "special version of string compareTo") \ | |
651 \ | |
652 develop(bool, SpecialStringIndexOf, true, \ | |
653 "special version of string indexOf") \ | |
654 \ | |
681 | 655 develop(bool, SpecialStringEquals, true, \ |
656 "special version of string equals") \ | |
657 \ | |
658 develop(bool, SpecialArraysEquals, true, \ | |
169
9148c65abefc
6695049: (coll) Create an x86 intrinsic for Arrays.equals
rasbold
parents:
164
diff
changeset
|
659 "special version of Arrays.equals(char[],char[])") \ |
9148c65abefc
6695049: (coll) Create an x86 intrinsic for Arrays.equals
rasbold
parents:
164
diff
changeset
|
660 \ |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
661 product(bool, CriticalJNINatives, true, \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
662 "check for critical JNI entry points") \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
663 \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
664 notproduct(bool, StressCriticalJNINatives, false, \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
665 "Exercise register saving code in critical natives") \ |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
666 \ |
681 | 667 product(bool, UseSSE42Intrinsics, false, \ |
668 "SSE4.2 versions of intrinsics") \ | |
669 \ | |
3282 | 670 product(bool, UseCondCardMark, false, \ |
671 "Check for already marked card before updating card table") \ | |
672 \ | |
0 | 673 develop(bool, TraceCallFixup, false, \ |
674 "traces all call fixups") \ | |
675 \ | |
676 develop(bool, DeoptimizeALot, false, \ | |
677 "deoptimize at every exit from the runtime system") \ | |
678 \ | |
434 | 679 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
0 | 680 "a comma separated list of bcis to deoptimize at") \ |
681 \ | |
682 product(bool, DeoptimizeRandom, false, \ | |
683 "deoptimize random frames on random exit from the runtime system")\ | |
684 \ | |
685 notproduct(bool, ZombieALot, false, \ | |
686 "creates zombies (non-entrant) at exit from the runt. system") \ | |
687 \ | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2125
diff
changeset
|
688 product(bool, UnlinkSymbolsALot, false, \ |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2125
diff
changeset
|
689 "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
|
690 \ |
0 | 691 notproduct(bool, WalkStackALot, false, \ |
692 "trace stack (no print) at every exit from the runtime system") \ | |
693 \ | |
4006 | 694 product(bool, Debugging, false, \ |
0 | 695 "set when executing debug methods in debug.ccp " \ |
696 "(to prevent triggering assertions)") \ | |
697 \ | |
698 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
699 "Enable strict checks that safepoints cannot happen for threads " \ | |
700 "that used No_Safepoint_Verifier") \ | |
701 \ | |
702 notproduct(bool, VerifyLastFrame, false, \ | |
703 "Verify oops on last frame on entry to VM") \ | |
704 \ | |
705 develop(bool, TraceHandleAllocation, false, \ | |
706 "Prints out warnings when suspicious many handles are allocated") \ | |
707 \ | |
708 product(bool, UseCompilerSafepoints, true, \ | |
709 "Stop at safepoints in compiled code") \ | |
710 \ | |
711 product(bool, UseSplitVerifier, true, \ | |
712 "use split verifier with StackMapTable attributes") \ | |
713 \ | |
714 product(bool, FailOverToOldVerifier, true, \ | |
715 "fail over to old verifier when split verifier fails") \ | |
716 \ | |
717 develop(bool, ShowSafepointMsgs, false, \ | |
718 "Show msg. about safepoint synch.") \ | |
719 \ | |
720 product(bool, SafepointTimeout, false, \ | |
721 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
722 "milliseconds if failed to reach safepoint") \ | |
723 \ | |
724 develop(bool, DieOnSafepointTimeout, false, \ | |
725 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
726 \ | |
727 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
728 /* typically, at most a few retries are needed */ \ | |
729 product(intx, SuspendRetryCount, 50, \ | |
730 "Maximum retry count for an external suspend request") \ | |
731 \ | |
732 product(intx, SuspendRetryDelay, 5, \ | |
733 "Milliseconds to delay per retry (* current_retry_count)") \ | |
734 \ | |
735 product(bool, AssertOnSuspendWaitFailure, false, \ | |
736 "Assert/Guarantee on external suspend wait failure") \ | |
737 \ | |
738 product(bool, TraceSuspendWaitFailures, false, \ | |
739 "Trace external suspend wait failures") \ | |
740 \ | |
741 product(bool, MaxFDLimit, true, \ | |
742 "Bump the number of file descriptors to max in solaris.") \ | |
743 \ | |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
744 diagnostic(bool, LogEvents, true, \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
745 "Enable the various ring buffer event logs") \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
746 \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
747 diagnostic(intx, LogEventsBufferEntries, 10, \ |
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
748 "Enable the various ring buffer event logs") \ |
0 | 749 \ |
750 product(bool, BytecodeVerificationRemote, true, \ | |
751 "Enables the Java bytecode verifier for remote classes") \ | |
752 \ | |
753 product(bool, BytecodeVerificationLocal, false, \ | |
754 "Enables the Java bytecode verifier for local classes") \ | |
755 \ | |
756 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
757 "Force exceptions on FP stack under/overflow") \ | |
758 \ | |
759 develop(bool, SoftMatchFailure, trueInProduct, \ | |
760 "If the DFA fails to match a node, print a message and bail out") \ | |
761 \ | |
762 develop(bool, VerifyStackAtCalls, false, \ | |
763 "Verify that the stack pointer is unchanged after calls") \ | |
764 \ | |
765 develop(bool, TraceJavaAssertions, false, \ | |
766 "Trace java language assertions") \ | |
767 \ | |
768 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
769 "temporary - see javaClasses.cpp") \ | |
770 \ | |
771 notproduct(bool, PrintMallocFree, false, \ | |
772 "Trace calls to C heap malloc/free allocation") \ | |
773 \ | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1660
diff
changeset
|
774 product(bool, PrintOopAddress, false, \ |
0 | 775 "Always print the location of the oop") \ |
776 \ | |
777 notproduct(bool, VerifyCodeCacheOften, false, \ | |
778 "Verify compiled-code cache often") \ | |
779 \ | |
780 develop(bool, ZapDeadCompiledLocals, false, \ | |
781 "Zap dead locals in compiler frames") \ | |
782 \ | |
783 notproduct(bool, ZapDeadLocalsOld, false, \ | |
784 "Zap dead locals (old version, zaps all frames when " \ | |
785 "entering the VM") \ | |
786 \ | |
787 notproduct(bool, CheckOopishValues, false, \ | |
788 "Warn if value contains oop ( requires ZapDeadLocals)") \ | |
789 \ | |
790 develop(bool, UseMallocOnly, false, \ | |
791 "use only malloc/free for allocation (no resource area/arena)") \ | |
792 \ | |
793 develop(bool, PrintMalloc, false, \ | |
794 "print all malloc/free calls") \ | |
795 \ | |
2250 | 796 develop(bool, PrintMallocStatistics, false, \ |
797 "print malloc/free statistics") \ | |
798 \ | |
0 | 799 develop(bool, ZapResourceArea, trueInDebug, \ |
800 "Zap freed resource/arena space with 0xABABABAB") \ | |
801 \ | |
802 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
803 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
804 \ | |
805 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
806 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
807 \ | |
1836
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
808 notproduct(bool, ZapStackSegments, trueInDebug, \ |
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
809 "Zap allocated/freed Stack segments with 0xFADFADED") \ |
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
810 \ |
263
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
811 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
0 | 812 "Zap unused heap space with 0xBAADBABE") \ |
813 \ | |
263
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
814 develop(bool, TraceZapUnusedHeapArea, false, \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
815 "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
|
816 \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
817 develop(bool, CheckZapUnusedHeapArea, false, \ |
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
818 "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
|
819 \ |
481
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
820 develop(bool, ZapFillerObjects, trueInDebug, \ |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
821 "Zap filler objects with 0xDEAFBABE") \ |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
822 \ |
0 | 823 develop(bool, PrintVMMessages, true, \ |
824 "Print vm messages on console") \ | |
825 \ | |
826 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
827 "Print the time the application has been running") \ | |
828 \ | |
829 product(bool, PrintGCApplicationStoppedTime, false, \ | |
830 "Print the time the application has been stopped") \ | |
831 \ | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
832 notproduct(uintx, ErrorHandlerTest, 0, \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
833 "If > 0, provokes an error after VM initialization; the value" \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
834 "determines which error to provoke. See test_error_handler()" \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
835 "in debug.cpp.") \ |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
836 \ |
0 | 837 develop(bool, Verbose, false, \ |
838 "Prints additional debugging information from other modes") \ | |
839 \ | |
840 develop(bool, PrintMiscellaneous, false, \ | |
841 "Prints uncategorized debugging information (requires +Verbose)") \ | |
842 \ | |
843 develop(bool, WizardMode, false, \ | |
844 "Prints much more debugging information") \ | |
845 \ | |
846 product(bool, ShowMessageBoxOnError, false, \ | |
847 "Keep process alive on VM fatal error") \ | |
848 \ | |
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
849 product(bool, CreateMinidumpOnCrash, false, \ |
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
850 "Create minidump on VM fatal error") \ |
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
851 \ |
0 | 852 product_pd(bool, UseOSErrorReporting, \ |
853 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
854 \ | |
855 product(bool, SuppressFatalErrorMessage, false, \ | |
856 "Do NO Fatal Error report [Avoid deadlock]") \ | |
857 \ | |
858 product(ccstrlist, OnError, "", \ | |
859 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
860 "for examples") \ | |
861 \ | |
862 product(ccstrlist, OnOutOfMemoryError, "", \ | |
863 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
864 \ | |
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
865 manageable(bool, HeapDumpBeforeFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
866 "Dump heap to file before any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
867 \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
868 manageable(bool, HeapDumpAfterFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
869 "Dump heap to file after any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
870 \ |
0 | 871 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
872 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
873 \ | |
874 manageable(ccstr, HeapDumpPath, NULL, \ | |
875 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ | |
876 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ | |
877 "in the working directory)") \ | |
878 \ | |
879 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
880 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
881 "when the heap usage is larger than this") \ | |
882 \ | |
883 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
884 "Approximate segment size when generating a segmented heap dump") \ | |
885 \ | |
886 develop(bool, BreakAtWarning, false, \ | |
887 "Execute breakpoint upon encountering VM warning") \ | |
888 \ | |
889 product_pd(bool, UseVectoredExceptions, \ | |
890 "Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \ | |
891 \ | |
892 develop(bool, TraceVMOperation, false, \ | |
893 "Trace vm operations") \ | |
894 \ | |
895 develop(bool, UseFakeTimers, false, \ | |
896 "Tells whether the VM should use system time or a fake timer") \ | |
897 \ | |
6197 | 898 product(ccstr, NativeMemoryTracking, "off", \ |
899 "Native memory tracking options") \ | |
900 \ | |
0 | 901 diagnostic(bool, LogCompilation, false, \ |
902 "Log compilation activity in detail to hotspot.log or LogFile") \ | |
903 \ | |
904 product(bool, PrintCompilation, false, \ | |
905 "Print compilations") \ | |
906 \ | |
907 diagnostic(bool, TraceNMethodInstalls, false, \ | |
908 "Trace nmethod intallation") \ | |
909 \ | |
4119
7793051af7d6
7110058: change default for ScavengeRootsInCode to 2
twisti
parents:
4065
diff
changeset
|
910 diagnostic(intx, ScavengeRootsInCode, 2, \ |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
911 "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
|
912 "1: allow scavenging from the code cache; " \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
913 "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
|
914 \ |
0 | 915 diagnostic(bool, TraceOSRBreakpoint, false, \ |
916 "Trace OSR Breakpoint ") \ | |
917 \ | |
918 diagnostic(bool, TraceCompileTriggered, false, \ | |
919 "Trace compile triggered") \ | |
920 \ | |
921 diagnostic(bool, TraceTriggers, false, \ | |
922 "Trace triggers") \ | |
923 \ | |
924 product(bool, AlwaysRestoreFPU, false, \ | |
925 "Restore the FPU control word after every JNI call (expensive)") \ | |
926 \ | |
4064
670a74b863fc
7107042: assert(no_dead_loop) failed: dead loop detected
kvn
parents:
4059
diff
changeset
|
927 diagnostic(bool, PrintCompilation2, false, \ |
0 | 928 "Print additional statistics per compilation") \ |
929 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
930 diagnostic(bool, PrintAdapterHandlers, false, \ |
0 | 931 "Print code generated for i2c/c2i adapters") \ |
932 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
933 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
934 "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
|
935 \ |
1207
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
936 develop(bool, VerifyAdapterSharing, false, \ |
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
937 "Verify that the code for shared adapters is the equivalent") \ |
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
938 \ |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
939 diagnostic(bool, PrintAssembly, false, \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
940 "Print assembly code (using external disassembler.so)") \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
941 \ |
370
885fe0f95828
6744783: HotSpot segfaults if given -XX options with an empty string argument
never
parents:
325
diff
changeset
|
942 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
943 "Options string passed to disassembler.so") \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
944 \ |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
945 diagnostic(bool, PrintNMethods, false, \ |
0 | 946 "Print assembly code for nmethods when generated") \ |
947 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
948 diagnostic(bool, PrintNativeNMethods, false, \ |
0 | 949 "Print assembly code for native nmethods when generated") \ |
950 \ | |
951 develop(bool, PrintDebugInfo, false, \ | |
952 "Print debug information for all nmethods when generated") \ | |
953 \ | |
954 develop(bool, PrintRelocations, false, \ | |
955 "Print relocation information for all nmethods when generated") \ | |
956 \ | |
957 develop(bool, PrintDependencies, false, \ | |
958 "Print dependency information for all nmethods when generated") \ | |
959 \ | |
960 develop(bool, PrintExceptionHandlers, false, \ | |
961 "Print exception handler tables for all nmethods when generated") \ | |
962 \ | |
963 develop(bool, InterceptOSException, false, \ | |
964 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
965 "exception happens") \ | |
966 \ | |
967 notproduct(bool, PrintCodeCache, false, \ | |
968 "Print the compiled_code cache when exiting") \ | |
969 \ | |
970 develop(bool, PrintCodeCache2, false, \ | |
971 "Print detailed info on the compiled_code cache when exiting") \ | |
972 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
973 diagnostic(bool, PrintStubCode, false, \ |
0 | 974 "Print generated stub code") \ |
975 \ | |
976 product(bool, StackTraceInThrowable, true, \ | |
977 "Collect backtrace in throwable when exception happens") \ | |
978 \ | |
979 product(bool, OmitStackTraceInFastThrow, true, \ | |
980 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
981 \ | |
982 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
983 "Prints byte code statictics when dumping profiler output") \ | |
984 \ | |
985 product(bool, ProfilerRecordPC, false, \ | |
986 "Collects tick for each 16 byte interval of compiled code") \ | |
987 \ | |
1064 | 988 product(bool, ProfileVM, false, \ |
0 | 989 "Profiles ticks that fall within VM (either in the VM Thread " \ |
990 "or VM code called through stubs)") \ | |
991 \ | |
992 product(bool, ProfileIntervals, false, \ | |
993 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
994 \ | |
995 notproduct(bool, ProfilerCheckIntervals, false, \ | |
996 "Collect and print info on spacing of profiler ticks") \ | |
997 \ | |
998 develop(bool, PrintJVMWarnings, false, \ | |
999 "Prints warnings for unimplemented JVM functions") \ | |
1000 \ | |
1870
c77b5c592eab
6392697: Additional flag needed to supress Hotspot warning messages
kamg
parents:
1868
diff
changeset
|
1001 product(bool, PrintWarnings, true, \ |
c77b5c592eab
6392697: Additional flag needed to supress Hotspot warning messages
kamg
parents:
1868
diff
changeset
|
1002 "Prints JVM warnings to output stream") \ |
c77b5c592eab
6392697: Additional flag needed to supress Hotspot warning messages
kamg
parents:
1868
diff
changeset
|
1003 \ |
0 | 1004 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
1005 "Prints warnings for stalled SpinLocks") \ | |
1006 \ | |
1007 develop(bool, InitializeJavaLangSystem, true, \ | |
1008 "Initialize java.lang.System - turn off for individual " \ | |
1009 "method debugging") \ | |
1010 \ | |
1011 develop(bool, InitializeJavaLangString, true, \ | |
1012 "Initialize java.lang.String - turn off for individual " \ | |
1013 "method debugging") \ | |
1014 \ | |
1015 develop(bool, InitializeJavaLangExceptionsErrors, true, \ | |
1016 "Initialize various error and exception classes - turn off for " \ | |
1017 "individual method debugging") \ | |
1018 \ | |
1019 product(bool, RegisterFinalizersAtInit, true, \ | |
1020 "Register finalizable objects at end of Object.<init> or " \ | |
1064 | 1021 "after allocation") \ |
0 | 1022 \ |
1023 develop(bool, RegisterReferences, true, \ | |
1024 "Tells whether the VM should register soft/weak/final/phantom " \ | |
1025 "references") \ | |
1026 \ | |
1027 develop(bool, IgnoreRewrites, false, \ | |
1028 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
1029 "This is unsafe!") \ | |
1030 \ | |
1031 develop(bool, PrintCodeCacheExtension, false, \ | |
1032 "Print extension of code cache") \ | |
1033 \ | |
1034 develop(bool, UsePrivilegedStack, true, \ | |
1035 "Enable the security JVM functions") \ | |
1036 \ | |
1037 develop(bool, IEEEPrecision, true, \ | |
1038 "Enables IEEE precision (for INTEL only)") \ | |
1039 \ | |
1040 develop(bool, ProtectionDomainVerification, true, \ | |
1041 "Verifies protection domain before resolution in system " \ | |
1042 "dictionary") \ | |
1043 \ | |
1044 product(bool, ClassUnloading, true, \ | |
1045 "Do unloading of classes") \ | |
1046 \ | |
474
7a018855d2f0
6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents:
455
diff
changeset
|
1047 diagnostic(bool, LinkWellKnownClasses, false, \ |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
116
diff
changeset
|
1048 "Resolve a well known class as soon as its name is seen") \ |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
116
diff
changeset
|
1049 \ |
0 | 1050 develop(bool, DisableStartThread, false, \ |
1051 "Disable starting of additional Java threads " \ | |
1052 "(for debugging only)") \ | |
1053 \ | |
1054 develop(bool, MemProfiling, false, \ | |
1055 "Write memory usage profiling to log file") \ | |
1056 \ | |
1057 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
1058 "Prints the system dictionary at exit") \ | |
1059 \ | |
4864
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
4854
diff
changeset
|
1060 experimental(intx, PredictedLoadedClassCount, 0, \ |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
4854
diff
changeset
|
1061 "Experimental: Tune loaded class cache starting size.") \ |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
4854
diff
changeset
|
1062 \ |
0 | 1063 diagnostic(bool, UnsyncloadClass, false, \ |
514 | 1064 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
1065 "class loader must call VM synchronized for findClass " \ | |
1066 "and defineClass.") \ | |
1067 \ | |
1068 product(bool, AlwaysLockClassLoader, false, \ | |
1069 "Require the VM to acquire the class loader lock before calling " \ | |
1070 "loadClass() even for class loaders registering " \ | |
1064 | 1071 "as parallel capable") \ |
514 | 1072 \ |
1073 product(bool, AllowParallelDefineClass, false, \ | |
1074 "Allow parallel defineClass requests for class loaders " \ | |
1064 | 1075 "registering as parallel capable") \ |
514 | 1076 \ |
1077 product(bool, MustCallLoadClassInternal, false, \ | |
1064 | 1078 "Call loadClassInternal() rather than loadClass()") \ |
0 | 1079 \ |
1080 product_pd(bool, DontYieldALot, \ | |
1081 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
1082 \ | |
1083 product_pd(bool, ConvertSleepToYield, \ | |
1084 "Converts sleep(0) to thread yield " \ | |
1085 "(may be off for SOLARIS to improve GUI)") \ | |
1086 \ | |
1087 product(bool, ConvertYieldToSleep, false, \ | |
1088 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
1089 "behavior (SOLARIS only)") \ | |
1090 \ | |
1091 product(bool, UseBoundThreads, true, \ | |
1092 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
1093 \ | |
1094 develop(bool, UseDetachedThreads, true, \ | |
1095 "Use detached threads that are recycled upon termination " \ | |
1096 "(for SOLARIS only)") \ | |
1097 \ | |
1098 product(bool, UseLWPSynchronization, true, \ | |
1099 "Use LWP-based instead of libthread-based synchronization " \ | |
1100 "(SPARC only)") \ | |
1101 \ | |
370
885fe0f95828
6744783: HotSpot segfaults if given -XX options with an empty string argument
never
parents:
325
diff
changeset
|
1102 product(ccstr, SyncKnobs, NULL, \ |
0 | 1103 "(Unstable) Various monitor synchronization tunables") \ |
1104 \ | |
1105 product(intx, EmitSync, 0, \ | |
1106 "(Unsafe,Unstable) " \ | |
1107 " Controls emission of inline sync fast-path code") \ | |
1108 \ | |
1109 product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \ | |
1110 \ | |
1587 | 1111 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
1112 \ | |
1113 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
1114 \ | |
0 | 1115 product(intx, Atomics, 0, \ |
1116 "(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \ | |
1117 \ | |
1118 product(intx, FenceInstruction, 0, \ | |
1119 "(Unsafe,Unstable) Experimental") \ | |
1120 \ | |
1121 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ | |
1122 \ | |
1123 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
1124 \ | |
1125 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
1126 \ | |
1127 product(intx, hashCode, 0, \ | |
1128 "(Unstable) select hashCode generation algorithm" ) \ | |
1129 \ | |
1130 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
1131 "(Unstable, Linux-specific)" \ | |
1132 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
1133 \ | |
1064 | 1134 product(bool, FilterSpuriousWakeups, true, \ |
1135 "Prevent spurious or premature wakeups from object.wait " \ | |
1136 "(Solaris only)") \ | |
0 | 1137 \ |
1138 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
1139 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
1140 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
1141 \ | |
1142 develop(bool, UsePthreads, false, \ | |
1143 "Use pthread-based instead of libthread-based synchronization " \ | |
1144 "(SPARC only)") \ | |
1145 \ | |
1146 product(bool, AdjustConcurrency, false, \ | |
1147 "call thr_setconcurrency at thread create time to avoid " \ | |
1148 "LWP starvation on MP systems (For Solaris Only)") \ | |
1149 \ | |
1150 develop(bool, UpdateHotSpotCompilerFileOnError, true, \ | |
1151 "Should the system attempt to update the compiler file when " \ | |
1152 "an error occurs?") \ | |
1153 \ | |
1154 product(bool, ReduceSignalUsage, false, \ | |
1155 "Reduce the use of OS signals in Java and/or the VM") \ | |
1156 \ | |
1157 notproduct(bool, ValidateMarkSweep, false, \ | |
1158 "Do extra validation during MarkSweep collection") \ | |
1159 \ | |
1160 notproduct(bool, RecordMarkSweepCompaction, false, \ | |
1161 "Enable GC-to-GC recording and querying of compaction during " \ | |
1162 "MarkSweep") \ | |
1163 \ | |
1164 develop_pd(bool, ShareVtableStubs, \ | |
1165 "Share vtable stubs (smaller code but worse branch prediction") \ | |
1166 \ | |
1167 develop(bool, LoadLineNumberTables, true, \ | |
1168 "Tells whether the class file parser loads line number tables") \ | |
1169 \ | |
1170 develop(bool, LoadLocalVariableTables, true, \ | |
1171 "Tells whether the class file parser loads local variable tables")\ | |
1172 \ | |
1173 develop(bool, LoadLocalVariableTypeTables, true, \ | |
1174 "Tells whether the class file parser loads local variable type tables")\ | |
1175 \ | |
1176 product(bool, AllowUserSignalHandlers, false, \ | |
1177 "Do not complain if the application installs signal handlers " \ | |
1178 "(Solaris & Linux only)") \ | |
1179 \ | |
1180 product(bool, UseSignalChaining, true, \ | |
1181 "Use signal-chaining to invoke signal handlers installed " \ | |
1182 "by the application (Solaris & Linux only)") \ | |
1183 \ | |
1184 product(bool, UseAltSigs, false, \ | |
1185 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
1064 | 1186 "internal signals (Solaris only)") \ |
0 | 1187 \ |
1188 product(bool, UseSpinning, false, \ | |
1189 "Use spinning in monitor inflation and before entry") \ | |
1190 \ | |
1191 product(bool, PreSpinYield, false, \ | |
1192 "Yield before inner spinning loop") \ | |
1193 \ | |
1194 product(bool, PostSpinYield, true, \ | |
1195 "Yield after inner spinning loop") \ | |
1196 \ | |
1197 product(bool, AllowJNIEnvProxy, false, \ | |
1198 "Allow JNIEnv proxies for jdbx") \ | |
1199 \ | |
1200 product(bool, JNIDetachReleasesMonitors, true, \ | |
1201 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
1202 \ | |
1203 product(bool, RestoreMXCSROnJNICalls, false, \ | |
1204 "Restore MXCSR when returning from JNI calls") \ | |
1205 \ | |
1206 product(bool, CheckJNICalls, false, \ | |
1207 "Verify all arguments to JNI calls") \ | |
1208 \ | |
1209 product(bool, UseFastJNIAccessors, true, \ | |
1210 "Use optimized versions of Get<Primitive>Field") \ | |
1211 \ | |
1212 product(bool, EagerXrunInit, false, \ | |
1213 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
1214 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
1215 \ | |
1216 product(bool, PreserveAllAnnotations, false, \ | |
1217 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
1218 \ | |
1219 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
1220 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
1221 \ | |
1222 product(bool, LazyBootClassLoader, true, \ | |
1223 "Enable/disable lazy opening of boot class path entries") \ | |
1224 \ | |
1225 diagnostic(bool, UseIncDec, true, \ | |
1226 "Use INC, DEC instructions on x86") \ | |
1227 \ | |
219 | 1228 product(bool, UseNewLongLShift, false, \ |
1229 "Use optimized bitwise shift left") \ | |
1230 \ | |
0 | 1231 product(bool, UseStoreImmI16, true, \ |
1232 "Use store immediate 16-bits value instruction on x86") \ | |
1233 \ | |
1234 product(bool, UseAddressNop, false, \ | |
1235 "Use '0F 1F [addr]' NOP instructions on x86 cpus") \ | |
1236 \ | |
1237 product(bool, UseXmmLoadAndClearUpper, true, \ | |
1238 "Load low part of XMM register and clear upper part") \ | |
1239 \ | |
1240 product(bool, UseXmmRegToRegMoveAll, false, \ | |
1241 "Copy all XMM register bits when moving value between registers") \ | |
1242 \ | |
71 | 1243 product(bool, UseXmmI2D, false, \ |
1244 "Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \ | |
1245 \ | |
1246 product(bool, UseXmmI2F, false, \ | |
1247 "Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \ | |
1248 \ | |
405 | 1249 product(bool, UseXMMForArrayCopy, false, \ |
1250 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
1251 \ | |
1252 product(bool, UseUnalignedLoadStores, false, \ | |
1253 "Use SSE2 MOVDQU instruction for Arraycopy") \ | |
1254 \ | |
3839 | 1255 product(bool, UseCBCond, false, \ |
1256 "Use compare and branch instruction on SPARC") \ | |
1257 \ | |
0 | 1258 product(intx, FieldsAllocationStyle, 1, \ |
1366
b9d85fcdf743
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
1365
diff
changeset
|
1259 "0 - type based with oops first, 1 - with oops last, " \ |
b9d85fcdf743
6940733: allocate non static oop fields in super and sub classes together
kvn
parents:
1365
diff
changeset
|
1260 "2 - oops in super and sub classes are together") \ |
0 | 1261 \ |
1262 product(bool, CompactFields, true, \ | |
1263 "Allocate nonstatic fields in gaps between previous fields") \ | |
1264 \ | |
1265 notproduct(bool, PrintCompactFieldsSavings, false, \ | |
1266 "Print how many words were saved with CompactFields") \ | |
1267 \ | |
1268 product(bool, UseBiasedLocking, true, \ | |
1269 "Enable biased locking in JVM") \ | |
1270 \ | |
1271 product(intx, BiasedLockingStartupDelay, 4000, \ | |
1272 "Number of milliseconds to wait before enabling biased locking") \ | |
1273 \ | |
1274 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
1275 "Print statistics of biased locking in JVM") \ | |
1276 \ | |
1277 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
1278 "Threshold of number of revocations per type to try to " \ | |
1279 "rebias all objects in the heap of that type") \ | |
1280 \ | |
1281 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
1282 "Threshold of number of revocations per type to permanently " \ | |
1283 "revoke biases of all objects in the heap of that type") \ | |
1284 \ | |
1285 product(intx, BiasedLockingDecayTime, 25000, \ | |
1286 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
1287 "type after previous bulk rebias") \ | |
1288 \ | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
1289 develop(bool, JavaObjectsInPerm, false, \ |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
1290 "controls whether Classes and interned Strings are allocated" \ |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
1291 "in perm. This purely intended to allow debugging issues" \ |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
1292 "in production.") \ |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
1293 \ |
0 | 1294 /* tracing */ \ |
1295 \ | |
1296 notproduct(bool, TraceRuntimeCalls, false, \ | |
1297 "Trace run-time calls") \ | |
1298 \ | |
1299 develop(bool, TraceJNICalls, false, \ | |
1300 "Trace JNI calls") \ | |
1301 \ | |
1302 notproduct(bool, TraceJVMCalls, false, \ | |
1303 "Trace JVM calls") \ | |
1304 \ | |
370
885fe0f95828
6744783: HotSpot segfaults if given -XX options with an empty string argument
never
parents:
325
diff
changeset
|
1305 product(ccstr, TraceJVMTI, NULL, \ |
0 | 1306 "Trace flags for JVMTI functions and events") \ |
1307 \ | |
1308 /* This option can change an EMCP method into an obsolete method. */ \ | |
1309 /* This can affect tests that except specific methods to be EMCP. */ \ | |
1310 /* This option should be used with caution. */ \ | |
1311 product(bool, StressLdcRewrite, false, \ | |
1312 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
1313 \ | |
1314 product(intx, TraceRedefineClasses, 0, \ | |
1315 "Trace level for JVMTI RedefineClasses") \ | |
1316 \ | |
1574 | 1317 develop(bool, StressMethodComparator, false, \ |
1318 "run the MethodComparator on all loaded methods") \ | |
1319 \ | |
0 | 1320 /* change to false by default sometime after Mustang */ \ |
1321 product(bool, VerifyMergedCPBytecodes, true, \ | |
1322 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
1323 \ | |
1324 develop(bool, TraceJNIHandleAllocation, false, \ | |
1325 "Trace allocation/deallocation of JNI handle blocks") \ | |
1326 \ | |
1327 develop(bool, TraceThreadEvents, false, \ | |
1328 "Trace all thread events") \ | |
1329 \ | |
1330 develop(bool, TraceBytecodes, false, \ | |
1331 "Trace bytecode execution") \ | |
1332 \ | |
1333 develop(bool, TraceClassInitialization, false, \ | |
1334 "Trace class initialization") \ | |
1335 \ | |
1336 develop(bool, TraceExceptions, false, \ | |
1337 "Trace exceptions") \ | |
1338 \ | |
1339 develop(bool, TraceICs, false, \ | |
1340 "Trace inline cache changes") \ | |
1341 \ | |
1342 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
1343 "Trace method invocation counter overflow") \ | |
1344 \ | |
1345 develop(bool, TraceInlineCacheClearing, false, \ | |
1346 "Trace clearing of inline caches in nmethods") \ | |
1347 \ | |
1348 develop(bool, TraceDependencies, false, \ | |
1349 "Trace dependencies") \ | |
1350 \ | |
1351 develop(bool, VerifyDependencies, trueInDebug, \ | |
1352 "Exercise and verify the compilation dependency mechanism") \ | |
1353 \ | |
1354 develop(bool, TraceNewOopMapGeneration, false, \ | |
1355 "Trace OopMapGeneration") \ | |
1356 \ | |
1357 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
1358 "Trace OopMapGeneration: print detailed cell states") \ | |
1359 \ | |
1360 develop(bool, TimeOopMap, false, \ | |
1361 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
1362 \ | |
1363 develop(bool, TimeOopMap2, false, \ | |
1364 "Time calls to GenerateOopMap::compute_map() individually") \ | |
1365 \ | |
1366 develop(bool, TraceMonitorMismatch, false, \ | |
1367 "Trace monitor matching failures during OopMapGeneration") \ | |
1368 \ | |
1369 develop(bool, TraceOopMapRewrites, false, \ | |
1370 "Trace rewritting of method oops during oop map generation") \ | |
1371 \ | |
1372 develop(bool, TraceSafepoint, false, \ | |
1373 "Trace safepoint operations") \ | |
1374 \ | |
1375 develop(bool, TraceICBuffer, false, \ | |
1376 "Trace usage of IC buffer") \ | |
1377 \ | |
1378 develop(bool, TraceCompiledIC, false, \ | |
1379 "Trace changes of compiled IC") \ | |
1380 \ | |
1381 notproduct(bool, TraceZapDeadLocals, false, \ | |
1382 "Trace zapping dead locals") \ | |
1383 \ | |
1384 develop(bool, TraceStartupTime, false, \ | |
1385 "Trace setup time") \ | |
1386 \ | |
1387 product(ccstr, HPILibPath, NULL, \ | |
1388 "Specify alternate path to HPI library") \ | |
1389 \ | |
1390 develop(bool, TraceProtectionDomainVerification, false, \ | |
1391 "Trace protection domain verifcation") \ | |
1392 \ | |
1393 develop(bool, TraceClearedExceptions, false, \ | |
1394 "Prints when an exception is forcibly cleared") \ | |
1395 \ | |
1396 product(bool, TraceClassResolution, false, \ | |
1397 "Trace all constant pool resolutions (for debugging)") \ | |
1398 \ | |
1399 product(bool, TraceBiasedLocking, false, \ | |
1400 "Trace biased locking in JVM") \ | |
1401 \ | |
1402 product(bool, TraceMonitorInflation, false, \ | |
1403 "Trace monitor inflation in JVM") \ | |
1404 \ | |
1405 /* assembler */ \ | |
1406 product(bool, Use486InstrsOnly, false, \ | |
1407 "Use 80486 Compliant instruction subset") \ | |
1408 \ | |
1409 /* gc */ \ | |
1410 \ | |
1411 product(bool, UseSerialGC, false, \ | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1412 "Use the serial garbage collector") \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1413 \ |
1193
c81fa70144aa
6919980: G1: remove +UseG1GC from under experimental options (second attempt)
tonyp
parents:
1179
diff
changeset
|
1414 product(bool, UseG1GC, false, \ |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1415 "Use the Garbage-First garbage collector") \ |
0 | 1416 \ |
1417 product(bool, UseParallelGC, false, \ | |
1418 "Use the Parallel Scavenge garbage collector") \ | |
1419 \ | |
1420 product(bool, UseParallelOldGC, false, \ | |
1421 "Use the Parallel Old garbage collector") \ | |
1422 \ | |
1423 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
1424 "How often should we maximally compact the heap (not allowing " \ | |
1425 "any dead space)") \ | |
1426 \ | |
1427 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
1428 "The collection count for the first maximum compaction") \ | |
1429 \ | |
1430 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
1431 "In the Parallel Old garbage collector maximum compaction for " \ | |
1432 "a system GC") \ | |
1433 \ | |
1434 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
1435 "The mean used by the par compact dead wood" \ | |
1436 "limiter (a number between 0-100).") \ | |
1437 \ | |
1438 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
1439 "The standard deviation used by the par compact dead wood" \ | |
1440 "limiter (a number between 0-100).") \ | |
1441 \ | |
1442 product(uintx, ParallelGCThreads, 0, \ | |
1443 "Number of parallel threads parallel gc will use") \ | |
1444 \ | |
4095
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1445 product(bool, UseDynamicNumberOfGCThreads, false, \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1446 "Dynamically choose the number of parallel threads " \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1447 "parallel gc will use") \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1448 \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1449 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1450 "Force dynamic selection of the number of" \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1451 "parallel threads parallel gc will use to aid debugging") \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1452 \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1453 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1454 "Size of heap (bytes) per GC thread used in calculating the " \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1455 "number of GC threads") \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1456 \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1457 product(bool, TraceDynamicGCThreads, false, \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1458 "Trace the dynamic GC thread usage") \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1459 \ |
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1460 develop(bool, ParallelOldGCSplitALot, false, \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1461 "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
|
1462 "multiple destination spaces)") \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1463 \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1464 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1465 "How often to provoke splitting a young gen space") \ |
0 | 1466 \ |
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
374
diff
changeset
|
1467 develop(bool, TraceRegionTasksQueuing, false, \ |
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
374
diff
changeset
|
1468 "Trace the queuing of the region tasks") \ |
0 | 1469 \ |
1284 | 1470 product(uintx, ConcGCThreads, 0, \ |
1471 "Number of threads concurrent gc will use") \ | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1472 \ |
0 | 1473 product(uintx, YoungPLABSize, 4096, \ |
1474 "Size of young gen promotion labs (in HeapWords)") \ | |
1475 \ | |
1476 product(uintx, OldPLABSize, 1024, \ | |
1477 "Size of old gen promotion labs (in HeapWords)") \ | |
1478 \ | |
1479 product(uintx, GCTaskTimeStampEntries, 200, \ | |
1480 "Number of time stamp entries per gc worker thread") \ | |
1481 \ | |
1482 product(bool, AlwaysTenure, false, \ | |
1483 "Always tenure objects in eden. (ParallelGC only)") \ | |
1484 \ | |
1485 product(bool, NeverTenure, false, \ | |
1064 | 1486 "Never tenure objects in eden, May tenure on overflow " \ |
1487 "(ParallelGC only)") \ | |
0 | 1488 \ |
1489 product(bool, ScavengeBeforeFullGC, true, \ | |
1064 | 1490 "Scavenge youngest generation before each full GC, " \ |
1491 "used with UseParallelGC") \ | |
0 | 1492 \ |
1493 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
1494 "Allow scavenges to occur when to_space contains objects.") \ | |
1495 \ | |
1496 product(bool, UseConcMarkSweepGC, false, \ | |
1497 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
1498 \ | |
1499 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
1500 "A System.gc() request invokes a concurrent collection;" \ | |
1501 " (effective only when UseConcMarkSweepGC)") \ | |
1502 \ | |
1503 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
1064 | 1504 "A System.gc() request invokes a concurrent collection and " \ |
1505 "also unloads classes during such a concurrent gc cycle " \ | |
1506 "(effective only when UseConcMarkSweepGC)") \ | |
0 | 1507 \ |
1520
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents:
1518
diff
changeset
|
1508 product(bool, GCLockerInvokesConcurrent, false, \ |
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents:
1518
diff
changeset
|
1509 "The exit of a JNI CS necessitating a scavenge also" \ |
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents:
1518
diff
changeset
|
1510 " kicks off a bkgrd concurrent collection") \ |
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents:
1518
diff
changeset
|
1511 \ |
1991
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
1972
diff
changeset
|
1512 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
1972
diff
changeset
|
1513 "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
|
1514 "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:
1972
diff
changeset
|
1515 \ |
0 | 1516 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
1517 "Use Adaptive Free Lists in the CMS generation") \ | |
1518 \ | |
1519 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
1520 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
1521 \ | |
1522 develop(bool, RotateCMSCollectionTypes, false, \ | |
1523 "Rotate the CMS collections among concurrent and STW") \ | |
1524 \ | |
1525 product(bool, UseCMSBestFit, true, \ | |
1526 "Use CMS best fit allocation strategy") \ | |
1527 \ | |
1528 product(bool, UseCMSCollectionPassing, true, \ | |
1529 "Use passing of collection from background to foreground") \ | |
1530 \ | |
1531 product(bool, UseParNewGC, false, \ | |
1532 "Use parallel threads in the new generation.") \ | |
1533 \ | |
1534 product(bool, ParallelGCVerbose, false, \ | |
1535 "Verbose output for parallel GC.") \ | |
1536 \ | |
1537 product(intx, ParallelGCBufferWastePct, 10, \ | |
1538 "wasted fraction of parallel allocation buffer.") \ | |
1539 \ | |
3357
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1540 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
|
1541 "Retain parallel allocation buffers across scavenges; " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1542 " -- disabled because this currently conflicts with " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1543 " parallel card scanning under certain conditions ") \ |
0 | 1544 \ |
1545 product(intx, TargetPLABWastePct, 10, \ | |
1546 "target wasted space in last buffer as pct of overall allocation")\ | |
1547 \ | |
1548 product(uintx, PLABWeight, 75, \ | |
1549 "Percentage (0-100) used to weight the current sample when" \ | |
1550 "computing exponentially decaying average for ResizePLAB.") \ | |
1551 \ | |
1552 product(bool, ResizePLAB, true, \ | |
1553 "Dynamically resize (survivor space) promotion labs") \ | |
1554 \ | |
1555 product(bool, PrintPLAB, false, \ | |
1556 "Print (survivor space) promotion labs sizing decisions") \ | |
1557 \ | |
1558 product(intx, ParGCArrayScanChunk, 50, \ | |
1559 "Scan a subset and push remainder, if array is bigger than this") \ | |
1560 \ | |
695 | 1561 product(bool, ParGCUseLocalOverflow, false, \ |
1562 "Instead of a global overflow list, use local overflow stacks") \ | |
1563 \ | |
679
cea947c8a988
6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
ysr
parents:
647
diff
changeset
|
1564 product(bool, ParGCTrimOverflow, true, \ |
695 | 1565 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
679
cea947c8a988
6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
ysr
parents:
647
diff
changeset
|
1566 \ |
534 | 1567 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
1568 "Whether we should simulate work queue overflow in ParNew") \ | |
1569 \ | |
1570 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
1064 | 1571 "An `interval' counter that determines how frequently " \ |
1572 "we simulate overflow; a smaller number increases frequency") \ | |
534 | 1573 \ |
1574 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
0 | 1575 "The desired number of objects to claim from the overflow list") \ |
1576 \ | |
4728
441e946dc1af
7121618: Change type of number of GC workers to unsigned int.
jmasa
parents:
4125
diff
changeset
|
1577 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
3357
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1578 "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
|
1579 "card table scanning work into") \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1580 \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1581 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
|
1582 "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
parents:
3325
diff
changeset
|
1583 "during card table scanning") \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1584 \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
parents:
3325
diff
changeset
|
1585 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
0 | 1586 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
1587 "parallel GC.") \ | |
1588 \ | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1589 product(uintx, OldPLABWeight, 50, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1590 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1591 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1592 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1593 product(bool, ResizeOldPLAB, true, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1594 "Dynamically resize (old gen) promotion labs") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1595 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1596 product(bool, PrintOldPLAB, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1597 "Print (old gen) promotion labs sizing decisions") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1598 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1599 product(uintx, CMSOldPLABMin, 16, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1600 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1601 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1602 product(uintx, CMSOldPLABMax, 1024, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1603 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1604 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1605 product(uintx, CMSOldPLABNumRefills, 4, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1606 "Nominal number of refills of CMS gen promotion lab cache" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1607 " per worker per block size") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1608 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1609 product(bool, CMSOldPLABResizeQuicker, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1610 "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
|
1611 " change in block demand rate") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1612 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1613 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1614 "The tolerance of the phase-change detector for on-the-fly" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1615 " PLAB resizing during a scavenge") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1616 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1617 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1618 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1619 " during a scavenge") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1620 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1621 product(uintx, CMSOldPLABReactivityCeiling, 10, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1622 "The clamping of the gain in the feedback loop for on-the-fly" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1623 " PLAB resizing during a scavenge") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1624 \ |
0 | 1625 product(bool, AlwaysPreTouch, false, \ |
1626 "It forces all freshly committed pages to be pre-touched.") \ | |
1627 \ | |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2362
diff
changeset
|
1628 product_pd(intx, CMSYoungGenPerWorker, \ |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2362
diff
changeset
|
1629 "The maximum size of young gen chosen by default per GC worker " \ |
1064 | 1630 "thread available") \ |
0 | 1631 \ |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1632 product(bool, GCOverheadReporting, false, \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1633 "Enables the GC overhead reporting facility") \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1634 \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1635 product(intx, GCOverheadReportingPeriodMS, 100, \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1636 "Reporting period for conc GC overhead reporting, in ms ") \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1637 \ |
0 | 1638 product(bool, CMSIncrementalMode, false, \ |
1639 "Whether CMS GC should operate in \"incremental\" mode") \ | |
1640 \ | |
1641 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
1642 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
1643 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
1644 "value") \ | |
1645 \ | |
1646 product(bool, CMSIncrementalPacing, true, \ | |
1647 "Whether the CMS incremental mode duty cycle should be " \ | |
1648 "automatically adjusted") \ | |
1649 \ | |
1650 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
1064 | 1651 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
1652 "enabled (a percentage, 0-100)") \ | |
0 | 1653 \ |
1654 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
1064 | 1655 "Percentage (0-100) used to add conservatism when computing the " \ |
1656 "duty cycle") \ | |
0 | 1657 \ |
1658 product(uintx, CMSIncrementalOffset, 0, \ | |
1659 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
1064 | 1660 " is shifted to the right within the period between young GCs") \ |
0 | 1661 \ |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1662 product(uintx, CMSExpAvgFactor, 50, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1663 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1664 "computing exponential averages for CMS statistics.") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1665 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1666 product(uintx, CMS_FLSWeight, 75, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1667 "Percentage (0-100) used to weight the current sample when" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1668 "computing exponentially decating averages for CMS FLS statistics.") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1669 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1670 product(uintx, CMS_FLSPadding, 1, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1671 "The multiple of deviation from mean to use for buffering" \ |
0 | 1672 "against volatility in free list demand.") \ |
1673 \ | |
1674 product(uintx, FLSCoalescePolicy, 2, \ | |
1675 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
1676 \ | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1677 product(bool, FLSAlwaysCoalesceLarge, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1678 "CMS: Larger free blocks are always available for coalescing") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1679 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1680 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1681 "CMS: the smaller the percentage the greater the coalition force")\ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1682 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1683 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1684 "CMS: the factor by which to inflate estimated demand of small" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1685 " block sizes to prevent coalescing with an adjoining block") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1686 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1687 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1688 "CMS: the factor by which to inflate estimated demand of large" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1689 " block sizes to prevent coalescing with an adjoining block") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1690 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1691 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1692 "CMS: the factor by which to inflate estimated demand of small" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1693 " block sizes to prevent splitting to supply demand for smaller" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1694 " blocks") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1695 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1696 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1697 "CMS: the factor by which to inflate estimated demand of large" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1698 " block sizes to prevent splitting to supply demand for smaller" \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1699 " blocks") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1700 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1701 product(bool, CMSExtrapolateSweep, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1702 "CMS: cushion for block demand during sweep") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1703 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1704 product(uintx, CMS_SweepWeight, 75, \ |
1064 | 1705 "Percentage (0-100) used to weight the current sample when " \ |
1706 "computing exponentially decaying average for inter-sweep " \ | |
1707 "duration") \ | |
0 | 1708 \ |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1709 product(uintx, CMS_SweepPadding, 1, \ |
1064 | 1710 "The multiple of deviation from mean to use for buffering " \ |
0 | 1711 "against volatility in inter-sweep duration.") \ |
1712 \ | |
1713 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
1714 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
1064 | 1715 "duration exceeds this threhold in milliseconds") \ |
0 | 1716 \ |
1717 develop(bool, CMSTraceIncrementalMode, false, \ | |
1718 "Trace CMS incremental mode") \ | |
1719 \ | |
1720 develop(bool, CMSTraceIncrementalPacing, false, \ | |
1721 "Trace CMS incremental mode pacing computation") \ | |
1722 \ | |
1723 develop(bool, CMSTraceThreadState, false, \ | |
1724 "Trace the CMS thread state (enable the trace_state() method)") \ | |
1725 \ | |
1726 product(bool, CMSClassUnloadingEnabled, false, \ | |
1727 "Whether class unloading enabled when using CMS GC") \ | |
1728 \ | |
94
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1729 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1730 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1731 " for which classes may not be unloaded") \ |
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1732 \ |
0 | 1733 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
1734 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
1735 \ | |
1736 product(bool, UseCMSCompactAtFullCollection, true, \ | |
1737 "Use mark sweep compact at full collections") \ | |
1738 \ | |
1739 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
1740 "Number of CMS full collection done before compaction if > 0") \ | |
1741 \ | |
1742 develop(intx, CMSDictionaryChoice, 0, \ | |
1743 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
1744 \ | |
1745 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
1777
179464550c7d
6983930: CMS: Various small cleanups ca September 2010
ysr
parents:
1749
diff
changeset
|
1746 "Replenish an indexed free list with this number of chunks") \ |
0 | 1747 \ |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1748 product(bool, CMSReplenishIntermediate, true, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1749 "Replenish all intermediate free-list caches") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1750 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1751 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
1777
179464550c7d
6983930: CMS: Various small cleanups ca September 2010
ysr
parents:
1749
diff
changeset
|
1752 "When satisfying batched demand, split blocks from the " \ |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1753 "IndexedFreeList whose size is a multiple of requested size") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1754 \ |
0 | 1755 product(bool, CMSLoopWarn, false, \ |
1756 "Warn in case of excessive CMS looping") \ | |
1757 \ | |
1758 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
1759 "Whether preserved marks should be restored early") \ | |
1760 \ | |
1284 | 1761 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
1762 "Size of marking stack") \ | |
1763 \ | |
1764 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
1765 "Max size of marking stack") \ | |
0 | 1766 \ |
1767 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
1768 "Whether we should simulate frequent marking stack / work queue" \ | |
1769 " overflow") \ | |
1770 \ | |
534 | 1771 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
1772 "An `interval' counter that determines how frequently" \ | |
0 | 1773 " we simulate overflow; a smaller number increases frequency") \ |
1774 \ | |
1775 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
1776 "(Temporary, subject to experimentation)" \ | |
1777 "Maximum number of abortable preclean iterations, if > 0") \ | |
1778 \ | |
1779 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
1780 "(Temporary, subject to experimentation)" \ | |
1781 "Maximum time in abortable preclean in ms") \ | |
1782 \ | |
1783 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
1784 "(Temporary, subject to experimentation)" \ | |
1785 "Nominal minimum work per abortable preclean iteration") \ | |
1786 \ | |
1887
cd3ef3fd20dd
6992998: CMSWaitDuration=0 causes hangs with +ExplicitGCInvokesConcurrent
ysr
parents:
1843
diff
changeset
|
1787 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
0 | 1788 "(Temporary, subject to experimentation)" \ |
1789 " Time that we sleep between iterations when not given" \ | |
1790 " enough work per iteration") \ | |
1791 \ | |
1792 product(uintx, CMSRescanMultiple, 32, \ | |
1793 "Size (in cards) of CMS parallel rescan task") \ | |
1794 \ | |
1795 product(uintx, CMSConcMarkMultiple, 32, \ | |
1796 "Size (in cards) of CMS concurrent MT marking task") \ | |
1797 \ | |
1798 product(uintx, CMSRevisitStackSize, 1*M, \ | |
1799 "Size of CMS KlassKlass revisit stack") \ | |
1800 \ | |
1801 product(bool, CMSAbortSemantics, false, \ | |
1802 "Whether abort-on-overflow semantics is implemented") \ | |
1803 \ | |
1804 product(bool, CMSParallelRemarkEnabled, true, \ | |
1805 "Whether parallel remark enabled (only if ParNewGC)") \ | |
1806 \ | |
1807 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
1808 "Whether parallel remark of survivor space" \ | |
1809 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
1810 \ | |
1811 product(bool, CMSPLABRecordAlways, true, \ | |
1812 "Whether to always record survivor space PLAB bdries" \ | |
1813 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
1814 \ | |
1815 product(bool, CMSConcurrentMTEnabled, true, \ | |
1816 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
1817 \ | |
1818 product(bool, CMSPermGenPrecleaningEnabled, true, \ | |
1819 "Whether concurrent precleaning enabled in perm gen" \ | |
1820 " (effective only when CMSPrecleaningEnabled is true)") \ | |
1821 \ | |
1822 product(bool, CMSPrecleaningEnabled, true, \ | |
1823 "Whether concurrent precleaning enabled") \ | |
1824 \ | |
1825 product(uintx, CMSPrecleanIter, 3, \ | |
1826 "Maximum number of precleaning iteration passes") \ | |
1827 \ | |
1828 product(uintx, CMSPrecleanNumerator, 2, \ | |
1829 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1830 " ratio") \ | |
1831 \ | |
1832 product(uintx, CMSPrecleanDenominator, 3, \ | |
1833 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1834 " ratio") \ | |
1835 \ | |
452
00b023ae2d78
6722113: CMS: Incorrect overflow handling during precleaning of Reference lists
ysr
parents:
443
diff
changeset
|
1836 product(bool, CMSPrecleanRefLists1, true, \ |
0 | 1837 "Preclean ref lists during (initial) preclean phase") \ |
1838 \ | |
1839 product(bool, CMSPrecleanRefLists2, false, \ | |
1840 "Preclean ref lists during abortable preclean phase") \ | |
1841 \ | |
1842 product(bool, CMSPrecleanSurvivors1, false, \ | |
1843 "Preclean survivors during (initial) preclean phase") \ | |
1844 \ | |
1845 product(bool, CMSPrecleanSurvivors2, true, \ | |
1846 "Preclean survivors during abortable preclean phase") \ | |
1847 \ | |
1848 product(uintx, CMSPrecleanThreshold, 1000, \ | |
1849 "Don't re-iterate if #dirty cards less than this") \ | |
1850 \ | |
1851 product(bool, CMSCleanOnEnter, true, \ | |
1852 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
1853 \ | |
1854 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
1855 "Choose variant (1,2) of verification following remark") \ | |
1856 \ | |
1857 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
1858 "If Eden used is below this value, don't try to schedule remark") \ | |
1859 \ | |
1860 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
1861 "The Eden occupancy % at which to try and schedule remark pause") \ | |
1862 \ | |
1863 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
1864 "Start sampling Eden top at least before yg occupancy reaches" \ | |
1865 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
1866 \ | |
1867 product(uintx, CMSSamplingGrain, 16*K, \ | |
1868 "The minimum distance between eden samples for CMS (see above)") \ | |
1869 \ | |
1870 product(bool, CMSScavengeBeforeRemark, false, \ | |
1871 "Attempt scavenge before the CMS remark step") \ | |
1872 \ | |
1873 develop(bool, CMSTraceSweeper, false, \ | |
1874 "Trace some actions of the CMS sweeper") \ | |
1875 \ | |
1876 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
1877 "Don't drain below this size per parallel worker/thief") \ | |
1878 \ | |
1887
cd3ef3fd20dd
6992998: CMSWaitDuration=0 causes hangs with +ExplicitGCInvokesConcurrent
ysr
parents:
1843
diff
changeset
|
1879 manageable(intx, CMSWaitDuration, 2000, \ |
0 | 1880 "Time in milliseconds that CMS thread waits for young GC") \ |
1881 \ | |
1882 product(bool, CMSYield, true, \ | |
1883 "Yield between steps of concurrent mark & sweep") \ | |
1884 \ | |
1885 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
1886 "Bitmap operations should process at most this many bits" \ | |
1887 "between yields") \ | |
1888 \ | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1889 product(bool, CMSDumpAtPromotionFailure, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1890 "Dump useful information about the state of the CMS old " \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1891 " generation upon a promotion failure.") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1892 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1893 product(bool, CMSPrintChunksInDump, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1894 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1895 " more detailed information about the free chunks.") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1896 \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1897 product(bool, CMSPrintObjectsInDump, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1898 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1899 " more detailed information about the allocated objects.") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1900 \ |
0 | 1901 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
1902 "Verify that all refs across the FLS boundary " \ | |
1903 " are to valid objects") \ | |
1904 \ | |
1905 diagnostic(bool, FLSVerifyLists, false, \ | |
1906 "Do lots of (expensive) FreeListSpace verification") \ | |
1907 \ | |
1908 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
1909 "Do lots of (expensive) FLS index table verification") \ | |
1910 \ | |
1911 develop(bool, FLSVerifyDictionary, false, \ | |
1912 "Do lots of (expensive) FLS dictionary verification") \ | |
1913 \ | |
1914 develop(bool, VerifyBlockOffsetArray, false, \ | |
1915 "Do (expensive!) block offset array verification") \ | |
1916 \ | |
3321
a1d5f532838d
7040068: CMS: Possibly unsafe initialization of BlockOffsetArrayUseUnallocatedBlock
brutisso
parents:
3255
diff
changeset
|
1917 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
0 | 1918 "Maintain _unallocated_block in BlockOffsetArray" \ |
1919 " (currently applicable only to CMS collector)") \ | |
1920 \ | |
1921 develop(bool, TraceCMSState, false, \ | |
1922 "Trace the state of the CMS collection") \ | |
1923 \ | |
1924 product(intx, RefDiscoveryPolicy, 0, \ | |
1925 "Whether reference-based(0) or referent-based(1)") \ | |
1926 \ | |
1927 product(bool, ParallelRefProcEnabled, false, \ | |
1928 "Enable parallel reference processing whenever possible") \ | |
1929 \ | |
1930 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
1931 "Enable balancing of reference processing queues") \ | |
1932 \ | |
1933 product(intx, CMSTriggerRatio, 80, \ | |
1934 "Percentage of MinHeapFreeRatio in CMS generation that is " \ | |
1064 | 1935 "allocated before a CMS collection cycle commences") \ |
0 | 1936 \ |
94
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1937 product(intx, CMSTriggerPermRatio, 80, \ |
1064 | 1938 "Percentage of MinHeapFreeRatio in the CMS perm generation that " \ |
1939 "is allocated before a CMS collection cycle commences, that " \ | |
1940 "also collects the perm generation") \ | |
94
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1941 \ |
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1942 product(uintx, CMSBootstrapOccupancy, 50, \ |
0 | 1943 "Percentage CMS generation occupancy at which to " \ |
1064 | 1944 "initiate CMS collection for bootstrapping collection stats") \ |
0 | 1945 \ |
1946 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
1947 "Percentage CMS generation occupancy to start a CMS collection " \ | |
1064 | 1948 "cycle. A negative value means that CMSTriggerRatio is used") \ |
94
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1949 \ |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1211
diff
changeset
|
1950 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1211
diff
changeset
|
1951 "Percentage of the (entire) heap occupancy to start a " \ |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1211
diff
changeset
|
1952 "concurrent GC cycle. It us used by GCs that trigger a " \ |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1211
diff
changeset
|
1953 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1211
diff
changeset
|
1954 "not just one of the generations (e.g., G1). A value of 0 " \ |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1211
diff
changeset
|
1955 "denotes 'do constant GC cycles'.") \ |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1211
diff
changeset
|
1956 \ |
94
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1957 product(intx, CMSInitiatingPermOccupancyFraction, -1, \ |
1064 | 1958 "Percentage CMS perm generation occupancy to start a " \ |
1959 "CMScollection cycle. A negative value means that " \ | |
1960 "CMSTriggerPermRatio is used") \ | |
0 | 1961 \ |
1962 product(bool, UseCMSInitiatingOccupancyOnly, false, \ | |
1963 "Only use occupancy as a crierion for starting a CMS collection") \ | |
1964 \ | |
94
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1965 product(intx, CMSIsTooFullPercentage, 98, \ |
1064 | 1966 "An absolute ceiling above which CMS will always consider the " \ |
1967 "perm gen ripe for collection") \ | |
94
0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
ysr
parents:
15
diff
changeset
|
1968 \ |
0 | 1969 develop(bool, CMSTestInFreeList, false, \ |
1970 "Check if the coalesced range is already in the " \ | |
1064 | 1971 "free lists as claimed") \ |
0 | 1972 \ |
1973 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
1974 "Check that all the garbage collected was returned to the " \ | |
1975 "free lists.") \ | |
1976 \ | |
1977 notproduct(bool, ScavengeALot, false, \ | |
1978 "Force scavenge at every Nth exit from the runtime system " \ | |
1979 "(N=ScavengeALotInterval)") \ | |
1980 \ | |
1981 develop(bool, FullGCALot, false, \ | |
1982 "Force full gc at every Nth exit from the runtime system " \ | |
1983 "(N=FullGCALotInterval)") \ | |
1984 \ | |
1985 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
1986 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
1987 \ | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1988 product(bool, PrintPromotionFailure, false, \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1989 "Print additional diagnostic information following " \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1990 " promotion failure") \ |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1064
diff
changeset
|
1991 \ |
0 | 1992 notproduct(bool, PromotionFailureALot, false, \ |
1993 "Use promotion failure handling on every youngest generation " \ | |
1994 "collection") \ | |
1995 \ | |
1996 develop(uintx, PromotionFailureALotCount, 1000, \ | |
1997 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
1998 "refill attempts (ParNew) or promotion attempts " \ | |
1999 "(other young collectors) ") \ | |
2000 \ | |
2001 develop(uintx, PromotionFailureALotInterval, 5, \ | |
2002 "Total collections between promotion failures alot") \ | |
2003 \ | |
1837
c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents:
1836
diff
changeset
|
2004 experimental(intx, WorkStealingSleepMillis, 1, \ |
0 | 2005 "Sleep time when sleep is used for yields") \ |
2006 \ | |
2430 | 2007 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
0 | 2008 "Number of yields before a sleep is done during workstealing") \ |
2009 \ | |
1837
c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents:
1836
diff
changeset
|
2010 experimental(uintx, WorkStealingHardSpins, 4096, \ |
546
05c6d52fa7a9
6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents:
541
diff
changeset
|
2011 "Number of iterations in a spin loop between checks on " \ |
05c6d52fa7a9
6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents:
541
diff
changeset
|
2012 "time out of hard spin") \ |
05c6d52fa7a9
6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents:
541
diff
changeset
|
2013 \ |
1837
c99c53f07c14
6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
ysr
parents:
1836
diff
changeset
|
2014 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
546
05c6d52fa7a9
6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents:
541
diff
changeset
|
2015 "Ratio of hard spins to calls to yield") \ |
05c6d52fa7a9
6690928: Use spinning in combination with yields for workstealing termination.
jmasa
parents:
541
diff
changeset
|
2016 \ |
534 | 2017 product(uintx, PreserveMarkStackSize, 1024, \ |
1064 | 2018 "Size for stack used in promotion failure handling") \ |
0 | 2019 \ |
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1288
diff
changeset
|
2020 develop(uintx, ObjArrayMarkingStride, 512, \ |
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1288
diff
changeset
|
2021 "Number of ObjArray elements to push onto the marking stack" \ |
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1288
diff
changeset
|
2022 "before pushing a continuation entry") \ |
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1288
diff
changeset
|
2023 \ |
3779 | 2024 notproduct(bool, ExecuteInternalVMTests, false, \ |
2025 "Enable execution of internal VM tests.") \ | |
2026 \ | |
0 | 2027 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
2028 \ | |
2029 product_pd(bool, ResizeTLAB, \ | |
2030 "Dynamically resize tlab size for threads") \ | |
2031 \ | |
2032 product(bool, ZeroTLAB, false, \ | |
2033 "Zero out the newly created TLAB") \ | |
2034 \ | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
2035 product(bool, FastTLABRefill, true, \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
2036 "Use fast TLAB refill code") \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
2037 \ |
0 | 2038 product(bool, PrintTLAB, false, \ |
2039 "Print various TLAB related information") \ | |
2040 \ | |
2041 product(bool, TLABStats, true, \ | |
2042 "Print various TLAB related information") \ | |
2043 \ | |
3892 | 2044 product(bool, UseBlockZeroing, false, \ |
2045 "Use special cpu instructions for block zeroing") \ | |
2046 \ | |
2047 product(intx, BlockZeroingLowLimit, 2048, \ | |
2048 "Minimum size in bytes when block zeroing will be used") \ | |
2049 \ | |
3903 | 2050 product(bool, UseBlockCopy, false, \ |
2051 "Use special cpu instructions for block copy") \ | |
2052 \ | |
2053 product(intx, BlockCopyLowLimit, 2048, \ | |
2054 "Minimum size in bytes when block copy will be used") \ | |
2055 \ | |
941 | 2056 product(bool, PrintRevisitStats, false, \ |
2057 "Print revisit (klass and MDO) stack related information") \ | |
2058 \ | |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2059 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2060 "Enable LowMemoryProtection")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2061 \ |
0 | 2062 product_pd(bool, NeverActAsServerClassMachine, \ |
2063 "Never act like a server-class machine") \ | |
2064 \ | |
2065 product(bool, AlwaysActAsServerClassMachine, false, \ | |
2066 "Always act like a server-class machine") \ | |
2067 \ | |
1064 | 2068 product_pd(uint64_t, MaxRAM, \ |
2069 "Real memory size (in bytes) used to set maximum heap size") \ | |
2070 \ | |
2071 product(uintx, ErgoHeapSizeLimit, 0, \ | |
2072 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
2073 "MaxRAM / MaxRAMFraction") \ | |
2074 \ | |
2075 product(uintx, MaxRAMFraction, 4, \ | |
2076 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
2077 "size") \ | |
0 | 2078 \ |
2079 product(uintx, DefaultMaxRAMFraction, 4, \ | |
1064 | 2080 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
2081 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
2082 \ | |
2083 product(uintx, MinRAMFraction, 2, \ | |
2084 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
2085 "size on systems with small physical memory size") \ | |
2086 \ | |
2087 product(uintx, InitialRAMFraction, 64, \ | |
2088 "Fraction (1/n) of real memory used for initial heap size") \ | |
0 | 2089 \ |
2090 product(bool, UseAutoGCSelectPolicy, false, \ | |
2091 "Use automatic collection selection policy") \ | |
2092 \ | |
2093 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
2094 "Automatic GC selection pause threshhold in ms") \ | |
2095 \ | |
2096 product(bool, UseAdaptiveSizePolicy, true, \ | |
2097 "Use adaptive generation sizing policies") \ | |
2098 \ | |
2099 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
2100 "Use adaptive survivor sizing policies") \ | |
2101 \ | |
2102 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
2103 "Use adaptive young-old sizing policies at minor collections") \ | |
2104 \ | |
2105 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
2106 "Use adaptive young-old sizing policies at major collections") \ | |
2107 \ | |
2108 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
2109 "Use statistics from System.GC for adaptive size policy") \ | |
2110 \ | |
2111 product(bool, UseAdaptiveGCBoundary, false, \ | |
2112 "Allow young-old boundary to move") \ | |
2113 \ | |
2114 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
2115 "Trace young-old boundary moves") \ | |
2116 \ | |
2117 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
2118 "Resize the virtual spaces of the young or old generations") \ | |
2119 \ | |
2120 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
2121 "Policy for changeing generation size for throughput goals") \ | |
2122 \ | |
2123 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
2124 "Policy for changing generation size for pause goals") \ | |
2125 \ | |
2126 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
2127 "Adjust tenured generation to achive a minor pause goal") \ | |
2128 \ | |
2129 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
2130 "Adjust young generation to achive a major pause goal") \ | |
2131 \ | |
2132 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
2133 "Number of steps where heuristics is used before data is used") \ | |
2134 \ | |
2135 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
2136 "Number of collections before the adaptive sizing is started") \ | |
2137 \ | |
2138 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
1064 | 2139 "Collecton interval for printing information; zero => never") \ |
0 | 2140 \ |
2141 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
2142 "Use adaptive minimum footprint as a goal") \ | |
2143 \ | |
2144 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
2145 "Weight given to exponential resizing, between 0 and 100") \ | |
2146 \ | |
2147 product(uintx, AdaptiveTimeWeight, 25, \ | |
2148 "Weight given to time in adaptive policy, between 0 and 100") \ | |
2149 \ | |
2150 product(uintx, PausePadding, 1, \ | |
2151 "How much buffer to keep for pause time") \ | |
2152 \ | |
2153 product(uintx, PromotedPadding, 3, \ | |
2154 "How much buffer to keep for promotion failure") \ | |
2155 \ | |
2156 product(uintx, SurvivorPadding, 3, \ | |
2157 "How much buffer to keep for survivor overflow") \ | |
2158 \ | |
2159 product(uintx, AdaptivePermSizeWeight, 20, \ | |
2160 "Weight for perm gen exponential resizing, between 0 and 100") \ | |
2161 \ | |
2162 product(uintx, PermGenPadding, 3, \ | |
2163 "How much buffer to keep for perm gen sizing") \ | |
2164 \ | |
2165 product(uintx, ThresholdTolerance, 10, \ | |
2166 "Allowed collection cost difference between generations") \ | |
2167 \ | |
2168 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
1064 | 2169 "If collection costs are within margin, reduce both by full " \ |
2170 "delta") \ | |
0 | 2171 \ |
2172 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
2173 "Adaptive size percentage change in young generation") \ | |
2174 \ | |
2175 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
2176 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
2177 \ | |
2178 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
2179 "Decay factor to YoungedGenerationSizeSupplement") \ | |
2180 \ | |
2181 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
2182 "Adaptive size percentage change in tenured generation") \ | |
2183 \ | |
2184 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
2185 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
2186 \ | |
2187 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
2188 "Decay factor to TenuredGenerationSizeIncrement") \ | |
2189 \ | |
1783 | 2190 product(uintx, MaxGCPauseMillis, max_uintx, \ |
751 | 2191 "Adaptive size policy maximum GC pause time goal in msec, " \ |
2192 "or (G1 Only) the max. GC time per MMU time slice") \ | |
2193 \ | |
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
|
2194 product(uintx, GCPauseIntervalMillis, 0, \ |
751 | 2195 "Time slice for MMU specification") \ |
0 | 2196 \ |
2197 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
2198 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
2199 \ | |
2200 product(uintx, GCTimeRatio, 99, \ | |
2201 "Adaptive size policy application time to GC time ratio") \ | |
2202 \ | |
2203 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
2204 "Adaptive size scale down factor for shrinking") \ | |
2205 \ | |
2206 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
2207 "Adaptive size decays the major cost for long major intervals") \ | |
2208 \ | |
2209 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
2210 "Time scale over which major costs decay") \ | |
2211 \ | |
2212 product(uintx, MinSurvivorRatio, 3, \ | |
2213 "Minimum ratio of young generation/survivor space size") \ | |
2214 \ | |
2215 product(uintx, InitialSurvivorRatio, 8, \ | |
2216 "Initial ratio of eden/survivor space size") \ | |
2217 \ | |
2218 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
2219 "Estimate of footprint other than Java Heap") \ | |
2220 \ | |
2221 product(bool, UseGCOverheadLimit, true, \ | |
2222 "Use policy to limit of proportion of time spent in GC " \ | |
2223 "before an OutOfMemory error is thrown") \ | |
2224 \ | |
2225 product(uintx, GCTimeLimit, 98, \ | |
2226 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
2227 "error is thrown (used with GCHeapFreeLimit)") \ | |
2228 \ | |
2229 product(uintx, GCHeapFreeLimit, 2, \ | |
2230 "Minimum percentage of free space after a full GC before an " \ | |
2231 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
2232 \ | |
2233 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
2234 "Number of consecutive collections before gc time limit fires") \ | |
2235 \ | |
2236 product(bool, PrintAdaptiveSizePolicy, false, \ | |
2237 "Print information about AdaptiveSizePolicy") \ | |
2238 \ | |
2239 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
2240 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
2241 \ | |
2242 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
2243 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
2244 \ | |
2245 product(intx, PrefetchFieldsAhead, -1, \ | |
2246 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
2247 \ | |
2248 develop(bool, UsePrefetchQueue, true, \ | |
2249 "Use the prefetch queue during PS promotion") \ | |
2250 \ | |
2251 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ | |
2252 "Verify system before exiting") \ | |
2253 \ | |
2254 diagnostic(bool, VerifyBeforeGC, false, \ | |
2255 "Verify memory system before GC") \ | |
2256 \ | |
2257 diagnostic(bool, VerifyAfterGC, false, \ | |
2258 "Verify memory system after GC") \ | |
2259 \ | |
2260 diagnostic(bool, VerifyDuringGC, false, \ | |
2261 "Verify memory system during GC (between phases)") \ | |
2262 \ | |
390 | 2263 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
2264 "Enable parallel memory system verification") \ | |
2265 \ | |
1166 | 2266 diagnostic(bool, DeferInitialCardMark, false, \ |
2267 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
2268 "may arise from new_pre_store_barrier") \ | |
2269 \ | |
0 | 2270 diagnostic(bool, VerifyRememberedSets, false, \ |
2271 "Verify GC remembered sets") \ | |
2272 \ | |
2273 diagnostic(bool, VerifyObjectStartArray, true, \ | |
2274 "Verify GC object start array if verify before/after") \ | |
2275 \ | |
2276 product(bool, DisableExplicitGC, false, \ | |
2277 "Tells whether calling System.gc() does a full GC") \ | |
2278 \ | |
2279 notproduct(bool, CheckMemoryInitialization, false, \ | |
2280 "Checks memory initialization") \ | |
2281 \ | |
2282 product(bool, CollectGen0First, false, \ | |
2283 "Collect youngest generation before each full GC") \ | |
2284 \ | |
2285 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
2286 "Bind CMS Thread to CPU if possible") \ | |
2287 \ | |
2288 diagnostic(uintx, CPUForCMSThread, 0, \ | |
2289 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
2290 \ | |
2291 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
2292 "Bind GCTaskThreads to CPUs if possible") \ | |
2293 \ | |
2294 product(bool, UseGCTaskAffinity, false, \ | |
2295 "Use worker affinity when asking for GCTasks") \ | |
2296 \ | |
2297 product(uintx, ProcessDistributionStride, 4, \ | |
2298 "Stride through processors when distributing processes") \ | |
2299 \ | |
2300 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
2301 "number of times the coordinator GC thread will sleep while " \ | |
2302 "yielding before giving up and resuming GC") \ | |
2303 \ | |
2304 product(uintx, CMSYieldSleepCount, 0, \ | |
2305 "number of times a GC thread (minus the coordinator) " \ | |
2306 "will sleep while yielding before giving up and resuming GC") \ | |
2307 \ | |
2308 /* gc tracing */ \ | |
2309 manageable(bool, PrintGC, false, \ | |
2310 "Print message at garbage collect") \ | |
2311 \ | |
2312 manageable(bool, PrintGCDetails, false, \ | |
2313 "Print more details at garbage collect") \ | |
2314 \ | |
2315 manageable(bool, PrintGCDateStamps, false, \ | |
2316 "Print date stamps at garbage collect") \ | |
2317 \ | |
2318 manageable(bool, PrintGCTimeStamps, false, \ | |
2319 "Print timestamps at garbage collect") \ | |
2320 \ | |
2321 product(bool, PrintGCTaskTimeStamps, false, \ | |
2322 "Print timestamps for individual gc worker thread tasks") \ | |
2323 \ | |
2324 develop(intx, ConcGCYieldTimeout, 0, \ | |
2325 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
2326 \ | |
2327 notproduct(bool, TraceMarkSweep, false, \ | |
2328 "Trace mark sweep") \ | |
2329 \ | |
2330 product(bool, PrintReferenceGC, false, \ | |
2331 "Print times spent handling reference objects during GC " \ | |
2332 " (enabled only when PrintGCDetails)") \ | |
2333 \ | |
2334 develop(bool, TraceReferenceGC, false, \ | |
2335 "Trace handling of soft/weak/final/phantom references") \ | |
2336 \ | |
2337 develop(bool, TraceFinalizerRegistration, false, \ | |
2338 "Trace registration of final references") \ | |
2339 \ | |
2340 notproduct(bool, TraceScavenge, false, \ | |
2341 "Trace scavenge") \ | |
2342 \ | |
2343 product_rw(bool, TraceClassLoading, false, \ | |
2344 "Trace all classes loaded") \ | |
2345 \ | |
2346 product(bool, TraceClassLoadingPreorder, false, \ | |
2347 "Trace all classes loaded in order referenced (not loaded)") \ | |
2348 \ | |
2349 product_rw(bool, TraceClassUnloading, false, \ | |
2350 "Trace unloading of classes") \ | |
2351 \ | |
2352 product_rw(bool, TraceLoaderConstraints, false, \ | |
2353 "Trace loader constraints") \ | |
2354 \ | |
2355 product(bool, TraceGen0Time, false, \ | |
2356 "Trace accumulated time for Gen 0 collection") \ | |
2357 \ | |
2358 product(bool, TraceGen1Time, false, \ | |
2359 "Trace accumulated time for Gen 1 collection") \ | |
2360 \ | |
2361 product(bool, PrintTenuringDistribution, false, \ | |
2362 "Print tenuring age information") \ | |
2363 \ | |
2364 product_rw(bool, PrintHeapAtGC, false, \ | |
2365 "Print heap layout before and after each GC") \ | |
2366 \ | |
838
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2367 product_rw(bool, PrintHeapAtGCExtended, false, \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2368 "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
|
2369 "when -XX:+PrintHeapAtGC is set") \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2370 \ |
0 | 2371 product(bool, PrintHeapAtSIGBREAK, true, \ |
2372 "Print heap layout in response to SIGBREAK") \ | |
2373 \ | |
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2374 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2375 "Print a class histogram before any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2376 \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2377 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2378 "Print a class histogram after any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2379 \ |
0 | 2380 manageable(bool, PrintClassHistogram, false, \ |
2381 "Print a histogram of class instances") \ | |
2382 \ | |
2383 develop(bool, TraceWorkGang, false, \ | |
2384 "Trace activities of work gangs") \ | |
2385 \ | |
2386 product(bool, TraceParallelOldGCTasks, false, \ | |
2387 "Trace multithreaded GC activity") \ | |
2388 \ | |
2389 develop(bool, TraceBlockOffsetTable, false, \ | |
2390 "Print BlockOffsetTable maps") \ | |
2391 \ | |
2392 develop(bool, TraceCardTableModRefBS, false, \ | |
2393 "Print CardTableModRefBS maps") \ | |
2394 \ | |
2395 develop(bool, TraceGCTaskManager, false, \ | |
2396 "Trace actions of the GC task manager") \ | |
2397 \ | |
2398 develop(bool, TraceGCTaskQueue, false, \ | |
2399 "Trace actions of the GC task queues") \ | |
2400 \ | |
4095
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
2401 diagnostic(bool, TraceGCTaskThread, false, \ |
0 | 2402 "Trace actions of the GC task threads") \ |
2403 \ | |
2404 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
2405 "Print the time taken by each parallel old gc phase." \ | |
2406 "PrintGCDetails must also be enabled.") \ | |
2407 \ | |
2408 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
2409 "Trace parallel old gc marking phase") \ | |
2410 \ | |
2411 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
2412 "Trace parallel old gc summary phase") \ | |
2413 \ | |
2414 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
2415 "Trace parallel old gc compaction phase") \ | |
2416 \ | |
2417 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
2418 "Trace parallel old gc dense prefix computation") \ | |
2419 \ | |
2420 develop(bool, IgnoreLibthreadGPFault, false, \ | |
2421 "Suppress workaround for libthread GP fault") \ | |
2422 \ | |
139
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2423 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
|
2424 "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
|
2425 "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
|
2426 \ |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2427 /* GC log rotation setting */ \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2428 \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2429 product(bool, UseGCLogFileRotation, false, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2430 "Prevent large gclog file for long running app. " \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2431 "Requires -Xloggc:<filename>") \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2432 \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2433 product(uintx, NumberOfGCLogFiles, 0, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2434 "Number of gclog files in rotation, " \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2435 "Default: 0, no rotation") \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2436 \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2437 product(uintx, GCLogFileSize, 0, \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2438 "GC log file size, Default: 0 bytes, no rotation " \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2439 "Only valid with UseGCLogFileRotation") \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2440 \ |
0 | 2441 /* JVMTI heap profiling */ \ |
2442 \ | |
2443 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
2444 "Trace JVMTI object tagging calls") \ | |
2445 \ | |
2446 diagnostic(bool, VerifyBeforeIteration, false, \ | |
2447 "Verify memory system before JVMTI iteration") \ | |
2448 \ | |
2449 /* compiler interface */ \ | |
2450 \ | |
2451 develop(bool, CIPrintCompilerName, false, \ | |
2452 "when CIPrint is active, print the name of the active compiler") \ | |
2453 \ | |
2454 develop(bool, CIPrintCompileQueue, false, \ | |
2455 "display the contents of the compile queue whenever a " \ | |
2456 "compilation is enqueued") \ | |
2457 \ | |
2458 develop(bool, CIPrintRequests, false, \ | |
2459 "display every request for compilation") \ | |
2460 \ | |
2461 product(bool, CITime, false, \ | |
2462 "collect timing information for compilation") \ | |
2463 \ | |
2464 develop(bool, CITimeEach, false, \ | |
2465 "display timing information after each successful compilation") \ | |
2466 \ | |
2467 develop(bool, CICountOSR, true, \ | |
2468 "use a separate counter when assigning ids to osr compilations") \ | |
2469 \ | |
2470 develop(bool, CICompileNatives, true, \ | |
2471 "compile native methods if supported by the compiler") \ | |
2472 \ | |
2473 develop_pd(bool, CICompileOSR, \ | |
2474 "compile on stack replacement methods if supported by the " \ | |
2475 "compiler") \ | |
2476 \ | |
2477 develop(bool, CIPrintMethodCodes, false, \ | |
2478 "print method bytecodes of the compiled code") \ | |
2479 \ | |
2480 develop(bool, CIPrintTypeFlow, false, \ | |
2481 "print the results of ciTypeFlow analysis") \ | |
2482 \ | |
2483 develop(bool, CITraceTypeFlow, false, \ | |
2484 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
2485 \ | |
2486 develop(intx, CICloneLoopTestLimit, 100, \ | |
2487 "size limit for blocks heuristically cloned in ciTypeFlow") \ | |
2488 \ | |
2403 | 2489 develop(intx, OSROnlyBCI, -1, \ |
2490 "OSR only at this bci. Negative values mean exclude that bci") \ | |
2491 \ | |
0 | 2492 /* temp diagnostics */ \ |
2493 \ | |
2494 diagnostic(bool, TraceRedundantCompiles, false, \ | |
2495 "Have compile broker print when a request already in the queue is"\ | |
2496 " requested again") \ | |
2497 \ | |
2498 diagnostic(bool, InitialCompileFast, false, \ | |
2499 "Initial compile at CompLevel_fast_compile") \ | |
2500 \ | |
2501 diagnostic(bool, InitialCompileReallyFast, false, \ | |
2502 "Initial compile at CompLevel_really_fast_compile (no profile)") \ | |
2503 \ | |
2504 diagnostic(bool, FullProfileOnReInterpret, true, \ | |
2505 "On re-interpret unc-trap compile next at CompLevel_fast_compile")\ | |
2506 \ | |
2507 /* compiler */ \ | |
2508 \ | |
2509 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
2510 "Number of compiler threads to run") \ | |
2511 \ | |
2512 product(intx, CompilationPolicyChoice, 0, \ | |
2513 "which compilation policy (0/1)") \ | |
2514 \ | |
2515 develop(bool, UseStackBanging, true, \ | |
2516 "use stack banging for stack overflow checks (required for " \ | |
2517 "proper StackOverflow handling; disable only to measure cost " \ | |
2518 "of stackbanging)") \ | |
2519 \ | |
2520 develop(bool, Use24BitFPMode, true, \ | |
2521 "Set 24-bit FPU mode on a per-compile basis ") \ | |
2522 \ | |
2523 develop(bool, Use24BitFP, true, \ | |
2524 "use FP instructions that produce 24-bit precise results") \ | |
2525 \ | |
2526 develop(bool, UseStrictFP, true, \ | |
2527 "use strict fp if modifier strictfp is set") \ | |
2528 \ | |
2529 develop(bool, GenerateSynchronizationCode, true, \ | |
2530 "generate locking/unlocking code for synchronized methods and " \ | |
2531 "monitors") \ | |
2532 \ | |
2533 develop(bool, GenerateCompilerNullChecks, true, \ | |
2534 "Generate explicit null checks for loads/stores/calls") \ | |
2535 \ | |
2536 develop(bool, GenerateRangeChecks, true, \ | |
2537 "Generate range checks for array accesses") \ | |
2538 \ | |
2539 develop_pd(bool, ImplicitNullChecks, \ | |
2540 "generate code for implicit null checks") \ | |
2541 \ | |
2542 product(bool, PrintSafepointStatistics, false, \ | |
2543 "print statistics about safepoint synchronization") \ | |
2544 \ | |
2545 product(intx, PrintSafepointStatisticsCount, 300, \ | |
2546 "total number of safepoint statistics collected " \ | |
2547 "before printing them out") \ | |
2548 \ | |
2549 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
2550 "print safepoint statistics only when safepoint takes" \ | |
2551 " more than PrintSafepointSatisticsTimeout in millis") \ | |
2552 \ | |
1321
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2553 product(bool, TraceSafepointCleanupTime, false, \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2554 "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
|
2555 " safepoint") \ |
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2556 \ |
0 | 2557 develop(bool, InlineAccessors, true, \ |
2558 "inline accessor methods (get/set)") \ | |
2559 \ | |
2560 product(bool, Inline, true, \ | |
2561 "enable inlining") \ | |
2562 \ | |
2563 product(bool, ClipInlining, true, \ | |
2564 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
2565 \ | |
2566 develop(bool, UseCHA, true, \ | |
2567 "enable CHA") \ | |
2568 \ | |
2569 product(bool, UseTypeProfile, true, \ | |
2570 "Check interpreter profile for historically monomorphic calls") \ | |
2571 \ | |
2572 product(intx, TypeProfileMajorReceiverPercent, 90, \ | |
2573 "% of major receiver type to all profiled receivers") \ | |
2574 \ | |
2575 notproduct(bool, TimeCompiler, false, \ | |
2576 "time the compiler") \ | |
2577 \ | |
2578 notproduct(bool, TimeCompiler2, false, \ | |
2579 "detailed time the compiler (requires +TimeCompiler)") \ | |
2580 \ | |
2581 diagnostic(bool, PrintInlining, false, \ | |
2582 "prints inlining optimizations") \ | |
2583 \ | |
2584 diagnostic(bool, PrintIntrinsics, false, \ | |
2585 "prints attempted and successful inlining of intrinsics") \ | |
2586 \ | |
775
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2587 product(bool, UseCountLeadingZerosInstruction, false, \ |
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2588 "Use count leading zeros instruction") \ |
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2589 \ |
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2590 product(bool, UsePopCountInstruction, false, \ |
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2591 "Use population count instruction") \ |
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2592 \ |
0 | 2593 diagnostic(ccstrlist, DisableIntrinsic, "", \ |
2594 "do not expand intrinsics whose (internal) names appear here") \ | |
2595 \ | |
2596 develop(bool, StressReflectiveCode, false, \ | |
2597 "Use inexact types at allocations, etc., to test reflection") \ | |
2598 \ | |
2599 develop(bool, EagerInitialization, false, \ | |
2600 "Eagerly initialize classes if possible") \ | |
2601 \ | |
2602 develop(bool, TraceMethodReplacement, false, \ | |
2603 "Print when methods are replaced do to recompilation") \ | |
2604 \ | |
2605 develop(bool, PrintMethodFlushing, false, \ | |
2606 "print the nmethods being flushed") \ | |
2607 \ | |
2608 notproduct(bool, LogMultipleMutexLocking, false, \ | |
2609 "log locking and unlocking of mutexes (only if multiple locks " \ | |
2610 "are held)") \ | |
2611 \ | |
2612 develop(bool, UseRelocIndex, false, \ | |
2613 "use an index to speed random access to relocations") \ | |
2614 \ | |
2615 develop(bool, StressCodeBuffers, false, \ | |
2616 "Exercise code buffer expansion and other rare state changes") \ | |
2617 \ | |
2618 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
2619 "Generate extra debugging info for non-safepoints in nmethods") \ | |
2620 \ | |
2621 diagnostic(bool, DebugInlinedCalls, true, \ | |
2622 "If false, restricts profiled locations to the root method only") \ | |
2623 \ | |
4066 | 2624 product(bool, PrintVMOptions, false, \ |
1150 | 2625 "Print flags that appeared on the command line") \ |
0 | 2626 \ |
564 | 2627 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
2628 "Ignore unrecognized VM options") \ | |
2629 \ | |
1150 | 2630 product(bool, PrintCommandLineFlags, false, \ |
2631 "Print flags specified on command line or set by ergonomics") \ | |
2632 \ | |
2633 product(bool, PrintFlagsInitial, false, \ | |
2634 "Print all VM flags before argument processing and exit VM") \ | |
2635 \ | |
2636 product(bool, PrintFlagsFinal, false, \ | |
2637 "Print all VM flags after argument and ergonomic processing") \ | |
2638 \ | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2639 notproduct(bool, PrintFlagsWithComments, false, \ |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2640 "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
|
2641 \ |
0 | 2642 diagnostic(bool, SerializeVMOutput, true, \ |
2643 "Use a mutex to serialize output to tty and hotspot.log") \ | |
2644 \ | |
2645 diagnostic(bool, DisplayVMOutput, true, \ | |
2646 "Display all VM output on the tty, independently of LogVMOutput") \ | |
2647 \ | |
2648 diagnostic(bool, LogVMOutput, trueInDebug, \ | |
2649 "Save VM output to hotspot.log, or to LogFile") \ | |
2650 \ | |
2651 diagnostic(ccstr, LogFile, NULL, \ | |
2652 "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ | |
2653 \ | |
2654 product(ccstr, ErrorFile, NULL, \ | |
2655 "If an error occurs, save the error data to this file " \ | |
2656 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
2657 \ | |
2658 product(bool, DisplayVMOutputToStderr, false, \ | |
2659 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
2660 \ | |
2661 product(bool, DisplayVMOutputToStdout, false, \ | |
2662 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
2663 \ | |
2664 product(bool, UseHeavyMonitors, false, \ | |
2665 "use heavyweight instead of lightweight Java monitors") \ | |
2666 \ | |
6162 | 2667 product(bool, PrintStringTableStatistics, false, \ |
2668 "print statistics about the StringTable and SymbolTable") \ | |
2669 \ | |
0 | 2670 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
2671 "print histogram of the symbol table") \ | |
2672 \ | |
2673 notproduct(bool, ExitVMOnVerifyError, false, \ | |
2674 "standard exit from VM if bytecode verify error " \ | |
2675 "(only in debug mode)") \ | |
2676 \ | |
2677 notproduct(ccstr, AbortVMOnException, NULL, \ | |
2678 "Call fatal if this exception is thrown. Example: " \ | |
2679 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
2680 \ | |
1684
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2681 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2682 "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
|
2683 "has this message.") \ |
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2684 \ |
0 | 2685 develop(bool, DebugVtables, false, \ |
2686 "add debugging code to vtable dispatch") \ | |
2687 \ | |
2688 develop(bool, PrintVtables, false, \ | |
2689 "print vtables when printing klass") \ | |
2690 \ | |
2691 notproduct(bool, PrintVtableStats, false, \ | |
2692 "print vtables stats at end of run") \ | |
2693 \ | |
2694 develop(bool, TraceCreateZombies, false, \ | |
2695 "trace creation of zombie nmethods") \ | |
2696 \ | |
2697 notproduct(bool, IgnoreLockingAssertions, false, \ | |
2698 "disable locking assertions (for speed)") \ | |
2699 \ | |
2700 notproduct(bool, VerifyLoopOptimizations, false, \ | |
2701 "verify major loop optimizations") \ | |
2702 \ | |
2703 product(bool, RangeCheckElimination, true, \ | |
2704 "Split loop iterations to eliminate range checks") \ | |
2705 \ | |
2706 develop_pd(bool, UncommonNullCast, \ | |
2707 "track occurrences of null in casts; adjust compiler tactics") \ | |
2708 \ | |
2709 develop(bool, TypeProfileCasts, true, \ | |
2710 "treat casts like calls for purposes of type profiling") \ | |
2711 \ | |
2712 develop(bool, MonomorphicArrayCheck, true, \ | |
2713 "Uncommon-trap array store checks that require full type check") \ | |
2714 \ | |
1746
4b29a725c43c
6912064: type profiles need to be exploited more for dynamic language support
jrose
parents:
1692
diff
changeset
|
2715 diagnostic(bool, ProfileDynamicTypes, true, \ |
4b29a725c43c
6912064: type profiles need to be exploited more for dynamic language support
jrose
parents:
1692
diff
changeset
|
2716 "do extra type profiling and use it more aggressively") \ |
4b29a725c43c
6912064: type profiles need to be exploited more for dynamic language support
jrose
parents:
1692
diff
changeset
|
2717 \ |
0 | 2718 develop(bool, DelayCompilationDuringStartup, true, \ |
2719 "Delay invoking the compiler until main application class is " \ | |
2720 "loaded") \ | |
2721 \ | |
2722 develop(bool, CompileTheWorld, false, \ | |
2723 "Compile all methods in all classes in bootstrap class path " \ | |
2724 "(stress test)") \ | |
2725 \ | |
2726 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
2727 "Preload all classes used by a class before start loading") \ | |
2728 \ | |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2729 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2730 "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
|
2731 \ |
0 | 2732 develop(bool, TraceIterativeGVN, false, \ |
2733 "Print progress during Iterative Global Value Numbering") \ | |
2734 \ | |
2735 develop(bool, FillDelaySlots, true, \ | |
2736 "Fill delay slots (on SPARC only)") \ | |
2737 \ | |
2738 develop(bool, VerifyIterativeGVN, false, \ | |
2739 "Verify Def-Use modifications during sparse Iterative Global " \ | |
2740 "Value Numbering") \ | |
2741 \ | |
2742 notproduct(bool, TracePhaseCCP, false, \ | |
2743 "Print progress during Conditional Constant Propagation") \ | |
2744 \ | |
2745 develop(bool, TimeLivenessAnalysis, false, \ | |
2746 "Time computation of bytecode liveness analysis") \ | |
2747 \ | |
2748 develop(bool, TraceLivenessGen, false, \ | |
2749 "Trace the generation of liveness analysis information") \ | |
2750 \ | |
2751 notproduct(bool, TraceLivenessQuery, false, \ | |
2752 "Trace queries of liveness analysis information") \ | |
2753 \ | |
2754 notproduct(bool, CollectIndexSetStatistics, false, \ | |
2755 "Collect information about IndexSets") \ | |
2756 \ | |
2757 develop(bool, PrintDominators, false, \ | |
2758 "Print out dominator trees for GVN") \ | |
2759 \ | |
2760 develop(bool, UseLoopSafepoints, true, \ | |
2761 "Generate Safepoint nodes in every loop") \ | |
2762 \ | |
2763 notproduct(bool, TraceCISCSpill, false, \ | |
2764 "Trace allocators use of cisc spillable instructions") \ | |
2765 \ | |
2766 notproduct(bool, TraceSpilling, false, \ | |
2767 "Trace spilling") \ | |
2768 \ | |
2769 product(bool, SplitIfBlocks, true, \ | |
2770 "Clone compares and control flow through merge points to fold " \ | |
2771 "some branches") \ | |
2772 \ | |
2773 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
2774 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
2775 "Inline allocations larger than this in doublewords must go slow")\ | |
2776 \ | |
2777 product(bool, AggressiveOpts, false, \ | |
2778 "Enable aggressive optimizations - see arguments.cpp") \ | |
2779 \ | |
192
6d13fcb3663f
6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents:
174
diff
changeset
|
2780 product(bool, UseStringCache, false, \ |
6d13fcb3663f
6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents:
174
diff
changeset
|
2781 "Enable String cache capabilities on String.java") \ |
6d13fcb3663f
6714404: Add UseStringCache switch to enable String caching under AggressiveOpts
kvn
parents:
174
diff
changeset
|
2782 \ |
0 | 2783 /* statistics */ \ |
2784 develop(bool, CountCompiledCalls, false, \ | |
2785 "counts method invocations") \ | |
2786 \ | |
2787 notproduct(bool, CountRuntimeCalls, false, \ | |
2788 "counts VM runtime calls") \ | |
2789 \ | |
2790 develop(bool, CountJNICalls, false, \ | |
2791 "counts jni method invocations") \ | |
2792 \ | |
2793 notproduct(bool, CountJVMCalls, false, \ | |
2794 "counts jvm method invocations") \ | |
2795 \ | |
2796 notproduct(bool, CountRemovableExceptions, false, \ | |
2797 "count exceptions that could be replaced by branches due to " \ | |
2798 "inlining") \ | |
2799 \ | |
2800 notproduct(bool, ICMissHistogram, false, \ | |
2801 "produce histogram of IC misses") \ | |
2802 \ | |
2803 notproduct(bool, PrintClassStatistics, false, \ | |
2804 "prints class statistics at end of run") \ | |
2805 \ | |
2806 notproduct(bool, PrintMethodStatistics, false, \ | |
2807 "prints method statistics at end of run") \ | |
2808 \ | |
2809 /* interpreter */ \ | |
2810 develop(bool, ClearInterpreterLocals, false, \ | |
2811 "Always clear local variables of interpreter activations upon " \ | |
2812 "entry") \ | |
2813 \ | |
2814 product_pd(bool, RewriteBytecodes, \ | |
2815 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
2816 \ | |
2817 product_pd(bool, RewriteFrequentPairs, \ | |
2818 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
2819 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
2820 diagnostic(bool, PrintInterpreter, false, \ |
0 | 2821 "Prints the generated interpreter code") \ |
2822 \ | |
2823 product(bool, UseInterpreter, true, \ | |
2824 "Use interpreter for non-compiled methods") \ | |
2825 \ | |
2826 develop(bool, UseFastSignatureHandlers, true, \ | |
2827 "Use fast signature handlers for native calls") \ | |
2828 \ | |
2829 develop(bool, UseV8InstrsOnly, false, \ | |
2830 "Use SPARC-V8 Compliant instruction subset") \ | |
2831 \ | |
2832 product(bool, UseNiagaraInstrs, false, \ | |
2833 "Use Niagara-efficient instruction subset") \ | |
2834 \ | |
2835 develop(bool, UseCASForSwap, false, \ | |
2836 "Do not use swap instructions, but only CAS (in a loop) on SPARC")\ | |
2837 \ | |
2838 product(bool, UseLoopCounter, true, \ | |
2839 "Increment invocation counter on backward branch") \ | |
2840 \ | |
2841 product(bool, UseFastEmptyMethods, true, \ | |
2842 "Use fast method entry code for empty methods") \ | |
2843 \ | |
2844 product(bool, UseFastAccessorMethods, true, \ | |
2845 "Use fast method entry code for accessor methods") \ | |
2846 \ | |
2847 product_pd(bool, UseOnStackReplacement, \ | |
2848 "Use on stack replacement, calls runtime if invoc. counter " \ | |
2849 "overflows in loop") \ | |
2850 \ | |
2851 notproduct(bool, TraceOnStackReplacement, false, \ | |
2852 "Trace on stack replacement") \ | |
2853 \ | |
2854 develop(bool, PoisonOSREntry, true, \ | |
2855 "Detect abnormal calls to OSR code") \ | |
2856 \ | |
2857 product_pd(bool, PreferInterpreterNativeStubs, \ | |
2858 "Use always interpreter stubs for native methods invoked via " \ | |
2859 "interpreter") \ | |
2860 \ | |
2861 develop(bool, CountBytecodes, false, \ | |
2862 "Count number of bytecodes executed") \ | |
2863 \ | |
2864 develop(bool, PrintBytecodeHistogram, false, \ | |
2865 "Print histogram of the executed bytecodes") \ | |
2866 \ | |
2867 develop(bool, PrintBytecodePairHistogram, false, \ | |
2868 "Print histogram of the executed bytecode pairs") \ | |
2869 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
2870 diagnostic(bool, PrintSignatureHandlers, false, \ |
0 | 2871 "Print code generated for native method signature handlers") \ |
2872 \ | |
2873 develop(bool, VerifyOops, false, \ | |
2874 "Do plausibility checks for oops") \ | |
2875 \ | |
2876 develop(bool, CheckUnhandledOops, false, \ | |
2877 "Check for unhandled oops in VM code") \ | |
2878 \ | |
2879 develop(bool, VerifyJNIFields, trueInDebug, \ | |
2880 "Verify jfieldIDs for instance fields") \ | |
2881 \ | |
2882 notproduct(bool, VerifyJNIEnvThread, false, \ | |
2883 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
2884 "from JNI") \ | |
2885 \ | |
2886 develop(bool, VerifyFPU, false, \ | |
2887 "Verify FPU state (check for NaN's, etc.)") \ | |
2888 \ | |
2889 develop(bool, VerifyThread, false, \ | |
2890 "Watch the thread register for corruption (SPARC only)") \ | |
2891 \ | |
2892 develop(bool, VerifyActivationFrameSize, false, \ | |
2893 "Verify that activation frame didn't become smaller than its " \ | |
2894 "minimal size") \ | |
2895 \ | |
2896 develop(bool, TraceFrequencyInlining, false, \ | |
2897 "Trace frequency based inlining") \ | |
2898 \ | |
2899 notproduct(bool, TraceTypeProfile, false, \ | |
2900 "Trace type profile") \ | |
2901 \ | |
2902 develop_pd(bool, InlineIntrinsics, \ | |
2903 "Inline intrinsics that can be statically resolved") \ | |
2904 \ | |
2905 product_pd(bool, ProfileInterpreter, \ | |
2906 "Profile at the bytecode level during interpretation") \ | |
2907 \ | |
2908 develop_pd(bool, ProfileTraps, \ | |
2909 "Profile deoptimization traps at the bytecode level") \ | |
2910 \ | |
2911 product(intx, ProfileMaturityPercentage, 20, \ | |
2912 "number of method invocations/branches (expressed as % of " \ | |
2913 "CompileThreshold) before using the method's profile") \ | |
2914 \ | |
2915 develop(bool, PrintMethodData, false, \ | |
2916 "Print the results of +ProfileInterpreter at end of run") \ | |
2917 \ | |
2918 develop(bool, VerifyDataPointer, trueInDebug, \ | |
2919 "Verify the method data pointer during interpreter profiling") \ | |
2920 \ | |
2921 develop(bool, VerifyCompiledCode, false, \ | |
2922 "Include miscellaneous runtime verifications in nmethod code; " \ | |
1064 | 2923 "default off because it disturbs nmethod size heuristics") \ |
0 | 2924 \ |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2925 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2926 "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
|
2927 "Test only") \ |
0 | 2928 \ |
2929 /* compilation */ \ | |
2930 product(bool, UseCompiler, true, \ | |
2931 "use compilation") \ | |
2932 \ | |
2933 develop(bool, TraceCompilationPolicy, false, \ | |
2934 "Trace compilation policy") \ | |
2935 \ | |
2936 develop(bool, TimeCompilationPolicy, false, \ | |
2937 "Time the compilation policy") \ | |
2938 \ | |
2939 product(bool, UseCounterDecay, true, \ | |
2940 "adjust recompilation counters") \ | |
2941 \ | |
2942 develop(intx, CounterHalfLifeTime, 30, \ | |
2943 "half-life time of invocation counters (in secs)") \ | |
2944 \ | |
2945 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
2946 "Min. ms. between invocation of CounterDecay") \ | |
2947 \ | |
2948 product(bool, AlwaysCompileLoopMethods, false, \ | |
2949 "when using recompilation, never interpret methods " \ | |
2950 "containing loops") \ | |
2951 \ | |
2952 product(bool, DontCompileHugeMethods, true, \ | |
2953 "don't compile methods > HugeMethodLimit") \ | |
2954 \ | |
2955 /* Bytecode escape analysis estimation. */ \ | |
2956 product(bool, EstimateArgEscape, true, \ | |
2957 "Analyze bytecodes to estimate escape state of arguments") \ | |
2958 \ | |
2959 product(intx, BCEATraceLevel, 0, \ | |
2960 "How much tracing to do of bytecode escape analysis estimates") \ | |
2961 \ | |
2962 product(intx, MaxBCEAEstimateLevel, 5, \ | |
2963 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
2964 \ | |
2965 product(intx, MaxBCEAEstimateSize, 150, \ | |
2966 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
2967 \ | |
2968 product(intx, AllocatePrefetchStyle, 1, \ | |
2969 "0 = no prefetch, " \ | |
2970 "1 = prefetch instructions for each allocation, " \ | |
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2971 "2 = use TLAB watermark to gate allocation prefetch, " \ |
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2972 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
0 | 2973 \ |
2974 product(intx, AllocatePrefetchDistance, -1, \ | |
2975 "Distance to prefetch ahead of allocation pointer") \ | |
2976 \ | |
3854 | 2977 product(intx, AllocatePrefetchLines, 3, \ |
2978 "Number of lines to prefetch ahead of array allocation pointer") \ | |
2979 \ | |
2980 product(intx, AllocateInstancePrefetchLines, 1, \ | |
2981 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
0 | 2982 \ |
2983 product(intx, AllocatePrefetchStepSize, 16, \ | |
2984 "Step size in bytes of sequential prefetch instructions") \ | |
2985 \ | |
2986 product(intx, AllocatePrefetchInstr, 0, \ | |
2987 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
2988 \ | |
2989 product(intx, ReadPrefetchInstr, 0, \ | |
2990 "Prefetch instruction to prefetch ahead") \ | |
2991 \ | |
3903 | 2992 product(uintx, ArraycopySrcPrefetchDistance, 0, \ |
2993 "Distance to prefetch source array in arracopy") \ | |
2994 \ | |
2995 product(uintx, ArraycopyDstPrefetchDistance, 0, \ | |
2996 "Distance to prefetch destination array in arracopy") \ | |
2997 \ | |
0 | 2998 /* deoptimization */ \ |
2999 develop(bool, TraceDeoptimization, false, \ | |
3000 "Trace deoptimization") \ | |
3001 \ | |
3002 develop(bool, DebugDeoptimization, false, \ | |
3003 "Tracing various information while debugging deoptimization") \ | |
3004 \ | |
3005 product(intx, SelfDestructTimer, 0, \ | |
3006 "Will cause VM to terminate after a given time (in minutes) " \ | |
3007 "(0 means off)") \ | |
3008 \ | |
3009 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
3010 "Max. no. of lines in the stack trace for Java exceptions " \ | |
3011 "(0 means all)") \ | |
3012 \ | |
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
3013 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
0 | 3014 "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
|
3015 "(0 means none)")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
3016 \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
3017 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
3018 "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
|
3019 "(0 means none)")) \ |
0 | 3020 \ |
3021 product(intx, SafepointTimeoutDelay, 10000, \ | |
3022 "Delay in milliseconds for option SafepointTimeout") \ | |
3023 \ | |
4945
cfdfbeac0a5b
7145345: Code cache sweeper must cooperate with safepoints
iveresov
parents:
4875
diff
changeset
|
3024 product(intx, NmethodSweepFraction, 16, \ |
0 | 3025 "Number of invocations of sweeper to cover all nmethods") \ |
3026 \ | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
3027 product(intx, NmethodSweepCheckInterval, 5, \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
3028 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
3029 \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3030 notproduct(bool, LogSweeper, false, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3031 "Keep a ring buffer of sweeper activity") \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3032 \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3033 notproduct(intx, SweeperLogEntries, 1024, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3034 "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
|
3035 \ |
0 | 3036 notproduct(intx, MemProfilingInterval, 500, \ |
3037 "Time between each invocation of the MemProfiler") \ | |
3038 \ | |
3039 develop(intx, MallocCatchPtr, -1, \ | |
3040 "Hit breakpoint when mallocing/freeing this pointer") \ | |
3041 \ | |
3042 notproduct(intx, AssertRepeat, 1, \ | |
3043 "number of times to evaluate expression in assert " \ | |
3044 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
3045 \ | |
3046 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
3047 "List of assertions (file:line) to muzzle") \ | |
3048 \ | |
3049 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
3050 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
3051 "is used") \ | |
3052 \ | |
3053 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
3054 "Threshold for total handle allocation when " \ | |
3055 "+TraceHandleAllocation is used") \ | |
3056 \ | |
3057 develop(intx, StackPrintLimit, 100, \ | |
3058 "number of stack frames to print in VM-level stack dump") \ | |
3059 \ | |
3060 notproduct(intx, MaxElementPrintSize, 256, \ | |
3061 "maximum number of elements to print") \ | |
3062 \ | |
3063 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
3064 "maximum number of subklasses to print when printing klass") \ | |
3065 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3066 product(intx, MaxInlineLevel, 9, \ |
0 | 3067 "maximum number of nested calls that are inlined") \ |
3068 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3069 product(intx, MaxRecursiveInlineLevel, 1, \ |
0 | 3070 "maximum number of nested recursive calls that are inlined") \ |
3071 \ | |
675 | 3072 product_pd(intx, InlineSmallCode, \ |
0 | 3073 "Only inline already compiled methods if their code size is " \ |
3074 "less than this") \ | |
3075 \ | |
3076 product(intx, MaxInlineSize, 35, \ | |
3077 "maximum bytecode size of a method to be inlined") \ | |
3078 \ | |
3079 product_pd(intx, FreqInlineSize, \ | |
3080 "maximum bytecode size of a frequent method to be inlined") \ | |
3081 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3082 product(intx, MaxTrivialSize, 6, \ |
0 | 3083 "maximum bytecode size of a trivial method to be inlined") \ |
3084 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3085 product(intx, MinInliningThreshold, 250, \ |
0 | 3086 "min. invocation count a method needs to have to be inlined") \ |
3087 \ | |
3088 develop(intx, AlignEntryCode, 4, \ | |
3089 "aligns entry code to specified value (in bytes)") \ | |
3090 \ | |
3091 develop(intx, MethodHistogramCutoff, 100, \ | |
3092 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
3093 \ | |
3094 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
3095 "# of interpreted methods to show in profile") \ | |
3096 \ | |
3097 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
3098 "# of compiled methods to show in profile") \ | |
3099 \ | |
3100 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
3101 "# of stub methods to show in profile") \ | |
3102 \ | |
3103 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
3104 "# of runtime stub nodes to show in profile") \ | |
3105 \ | |
3106 product(intx, ProfileIntervalsTicks, 100, \ | |
3107 "# of ticks between printing of interval profile " \ | |
3108 "(+ProfileIntervals)") \ | |
3109 \ | |
3110 notproduct(intx, ScavengeALotInterval, 1, \ | |
3111 "Interval between which scavenge will occur with +ScavengeALot") \ | |
3112 \ | |
3113 notproduct(intx, FullGCALotInterval, 1, \ | |
3114 "Interval between which full gc will occur with +FullGCALot") \ | |
3115 \ | |
3116 notproduct(intx, FullGCALotStart, 0, \ | |
3117 "For which invocation to start FullGCAlot") \ | |
3118 \ | |
3119 notproduct(intx, FullGCALotDummies, 32*K, \ | |
3120 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
3121 "to move") \ | |
3122 \ | |
3123 develop(intx, DontYieldALotInterval, 10, \ | |
3124 "Interval between which yields will be dropped (milliseconds)") \ | |
3125 \ | |
3126 develop(intx, MinSleepInterval, 1, \ | |
3127 "Minimum sleep() interval (milliseconds) when " \ | |
3128 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
3129 \ | |
3130 product(intx, EventLogLength, 2000, \ | |
3131 "maximum nof events in event log") \ | |
3132 \ | |
3133 develop(intx, ProfilerPCTickThreshold, 15, \ | |
3134 "Number of ticks in a PC buckets to be a hotspot") \ | |
3135 \ | |
3136 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
3137 "Number of exits until DeoptimizeALot kicks in") \ | |
3138 \ | |
3139 notproduct(intx, ZombieALotInterval, 5, \ | |
3140 "Number of exits until ZombieALot kicks in") \ | |
3141 \ | |
3142 develop(bool, StressNonEntrant, false, \ | |
3143 "Mark nmethods non-entrant at registration") \ | |
3144 \ | |
3145 diagnostic(intx, MallocVerifyInterval, 0, \ | |
3146 "if non-zero, verify C heap after every N calls to " \ | |
3147 "malloc/realloc/free") \ | |
3148 \ | |
3149 diagnostic(intx, MallocVerifyStart, 0, \ | |
3150 "if non-zero, start verifying C heap after Nth call to " \ | |
3151 "malloc/realloc/free") \ | |
3152 \ | |
1783 | 3153 product(intx, TypeProfileWidth, 2, \ |
0 | 3154 "number of receiver types to record in call/cast profile") \ |
3155 \ | |
3156 develop(intx, BciProfileWidth, 2, \ | |
3157 "number of return bci's to record in ret profile") \ | |
3158 \ | |
3159 product(intx, PerMethodRecompilationCutoff, 400, \ | |
3160 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
3161 \ | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
3162 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
0 | 3163 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
3164 \ | |
3165 product(intx, PerMethodTrapLimit, 100, \ | |
3166 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
3167 \ | |
3168 product(intx, PerBytecodeTrapLimit, 4, \ | |
3169 "Limit on traps (of one kind) at a particular BCI") \ | |
3170 \ | |
3171 develop(intx, FreqCountInvocations, 1, \ | |
3172 "Scaling factor for branch frequencies (deprecated)") \ | |
3173 \ | |
3174 develop(intx, InlineFrequencyRatio, 20, \ | |
3175 "Ratio of call site execution to caller method invocation") \ | |
3176 \ | |
3177 develop_pd(intx, InlineFrequencyCount, \ | |
3178 "Count of call site execution necessary to trigger frequent " \ | |
3179 "inlining") \ | |
3180 \ | |
3181 develop(intx, InlineThrowCount, 50, \ | |
3182 "Force inlining of interpreted methods that throw this often") \ | |
3183 \ | |
3184 develop(intx, InlineThrowMaxSize, 200, \ | |
3185 "Force inlining of throwing methods smaller than this") \ | |
3186 \ | |
3187 product(intx, AliasLevel, 3, \ | |
3188 "0 for no aliasing, 1 for oop/field/static/array split, " \ | |
3189 "2 for class split, 3 for unique instances") \ | |
3190 \ | |
3191 develop(bool, VerifyAliases, false, \ | |
3192 "perform extra checks on the results of alias analysis") \ | |
3193 \ | |
3194 develop(intx, ProfilerNodeSize, 1024, \ | |
3195 "Size in K to allocate for the Profile Nodes of each thread") \ | |
3196 \ | |
3197 develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \ | |
3198 "Number of times to spin wait on a v8 atomic operation lock") \ | |
3199 \ | |
3200 product(intx, ReadSpinIterations, 100, \ | |
3201 "Number of read attempts before a yield (spin inner loop)") \ | |
3202 \ | |
3203 product_pd(intx, PreInflateSpin, \ | |
3204 "Number of times to spin wait before inflation") \ | |
3205 \ | |
3206 product(intx, PreBlockSpin, 10, \ | |
3207 "Number of times to spin in an inflated lock before going to " \ | |
3208 "an OS lock") \ | |
3209 \ | |
3210 /* gc parameters */ \ | |
1064 | 3211 product(uintx, InitialHeapSize, 0, \ |
3212 "Initial heap size (in bytes); zero means OldSize + NewSize") \ | |
3213 \ | |
3214 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
3215 "Maximum heap size (in bytes)") \ | |
3216 \ | |
3217 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
3218 "Initial tenured generation size (in bytes)") \ | |
3219 \ | |
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
3220 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
1064 | 3221 "Initial new generation size (in bytes)") \ |
0 | 3222 \ |
3223 product(uintx, MaxNewSize, max_uintx, \ | |
1064 | 3224 "Maximum new generation size (in bytes), max_uintx means set " \ |
3225 "ergonomically") \ | |
0 | 3226 \ |
3227 product(uintx, PretenureSizeThreshold, 0, \ | |
1064 | 3228 "Maximum size in bytes of objects allocated in DefNew " \ |
3229 "generation; zero means no maximum") \ | |
3230 \ | |
3231 product(uintx, TLABSize, 0, \ | |
3232 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
0 | 3233 \ |
3234 product(uintx, MinTLABSize, 2*K, \ | |
3235 "Minimum allowed TLAB size (in bytes)") \ | |
3236 \ | |
3237 product(uintx, TLABAllocationWeight, 35, \ | |
3238 "Allocation averaging weight") \ | |
3239 \ | |
3240 product(uintx, TLABWasteTargetPercent, 1, \ | |
3241 "Percentage of Eden that can be wasted") \ | |
3242 \ | |
3243 product(uintx, TLABRefillWasteFraction, 64, \ | |
3244 "Max TLAB waste at a refill (internal fragmentation)") \ | |
3245 \ | |
3246 product(uintx, TLABWasteIncrement, 4, \ | |
3247 "Increment allowed waste at slow allocation") \ | |
3248 \ | |
1064 | 3249 product(intx, SurvivorRatio, 8, \ |
0 | 3250 "Ratio of eden/survivor space size") \ |
3251 \ | |
1064 | 3252 product(intx, NewRatio, 2, \ |
0 | 3253 "Ratio of new/old generation sizes") \ |
3254 \ | |
3255 product_pd(uintx, NewSizeThreadIncrease, \ | |
3256 "Additional size added to desired new generation size per " \ | |
3257 "non-daemon thread (in bytes)") \ | |
3258 \ | |
3259 product_pd(uintx, PermSize, \ | |
1064 | 3260 "Initial size of permanent generation (in bytes)") \ |
0 | 3261 \ |
3262 product_pd(uintx, MaxPermSize, \ | |
3263 "Maximum size of permanent generation (in bytes)") \ | |
3264 \ | |
3265 product(uintx, MinHeapFreeRatio, 40, \ | |
3266 "Min percentage of heap free after GC to avoid expansion") \ | |
3267 \ | |
3268 product(uintx, MaxHeapFreeRatio, 70, \ | |
3269 "Max percentage of heap free after GC to avoid shrinking") \ | |
3270 \ | |
3271 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
3272 "Number of milliseconds per MB of free space in the heap") \ | |
3273 \ | |
3274 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
3275 "Min change in heap space due to GC (in bytes)") \ | |
3276 \ | |
3277 product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \ | |
3278 "Min expansion of permanent heap (in bytes)") \ | |
3279 \ | |
3280 product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \ | |
3281 "Max expansion of permanent heap without full GC (in bytes)") \ | |
3282 \ | |
3283 product(intx, QueuedAllocationWarningCount, 0, \ | |
3284 "Number of times an allocation that queues behind a GC " \ | |
3285 "will retry before printing a warning") \ | |
3286 \ | |
3287 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
3288 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
3289 \ | |
3290 diagnostic(intx, VerifyGCLevel, 0, \ | |
3291 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
3292 \ | |
3293 product(intx, MaxTenuringThreshold, 15, \ | |
3294 "Maximum value for tenuring threshold") \ | |
3295 \ | |
3296 product(intx, InitialTenuringThreshold, 7, \ | |
3297 "Initial value for tenuring threshold") \ | |
3298 \ | |
3299 product(intx, TargetSurvivorRatio, 50, \ | |
3300 "Desired percentage of survivor space used after scavenge") \ | |
3301 \ | |
438 | 3302 product(uintx, MarkSweepDeadRatio, 5, \ |
0 | 3303 "Percentage (0-100) of the old gen allowed as dead wood." \ |
3304 "Serial mark sweep treats this as both the min and max value." \ | |
3305 "CMS uses this value only if it falls back to mark sweep." \ | |
3306 "Par compact uses a variable scale based on the density of the" \ | |
3307 "generation and treats this as the max value when the heap is" \ | |
3308 "either completely full or completely empty. Par compact also" \ | |
3309 "has a smaller default value; see arguments.cpp.") \ | |
3310 \ | |
438 | 3311 product(uintx, PermMarkSweepDeadRatio, 20, \ |
0 | 3312 "Percentage (0-100) of the perm gen allowed as dead wood." \ |
3313 "See MarkSweepDeadRatio for collector-specific comments.") \ | |
3314 \ | |
3315 product(intx, MarkSweepAlwaysCompactCount, 4, \ | |
3316 "How often should we fully compact the heap (ignoring the dead " \ | |
3317 "space parameters)") \ | |
3318 \ | |
3319 product(intx, PrintCMSStatistics, 0, \ | |
3320 "Statistics for CMS") \ | |
3321 \ | |
3322 product(bool, PrintCMSInitiationStatistics, false, \ | |
3323 "Statistics for initiating a CMS collection") \ | |
3324 \ | |
3325 product(intx, PrintFLSStatistics, 0, \ | |
3326 "Statistics for CMS' FreeListSpace") \ | |
3327 \ | |
3328 product(intx, PrintFLSCensus, 0, \ | |
3329 "Census for CMS' FreeListSpace") \ | |
3330 \ | |
3331 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
3332 "Delay in ms between expansion and allocation") \ | |
3333 \ | |
3334 product(intx, DeferThrSuspendLoopCount, 4000, \ | |
3335 "(Unstable) Number of times to iterate in safepoint loop " \ | |
3336 " before blocking VM threads ") \ | |
3337 \ | |
3338 product(intx, DeferPollingPageLoopCount, -1, \ | |
3339 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
3340 "before changing safepoint polling page to RO ") \ | |
3341 \ | |
3342 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
3343 \ | |
3344 product(bool, PSChunkLargeArrays, true, \ | |
3345 "true: process large arrays in chunks") \ | |
3346 \ | |
3347 product(uintx, GCDrainStackTargetSize, 64, \ | |
3348 "how many entries we'll try to leave on the stack during " \ | |
3349 "parallel GC") \ | |
3350 \ | |
3351 /* stack parameters */ \ | |
3352 product_pd(intx, StackYellowPages, \ | |
3353 "Number of yellow zone (recoverable overflows) pages") \ | |
3354 \ | |
3355 product_pd(intx, StackRedPages, \ | |
3356 "Number of red zone (unrecoverable overflows) pages") \ | |
3357 \ | |
3358 product_pd(intx, StackShadowPages, \ | |
3359 "Number of shadow zone (for overflow checking) pages" \ | |
3360 " this should exceed the depth of the VM and native call stack") \ | |
3361 \ | |
3362 product_pd(intx, ThreadStackSize, \ | |
3363 "Thread Stack Size (in Kbytes)") \ | |
3364 \ | |
3365 product_pd(intx, VMThreadStackSize, \ | |
3366 "Non-Java Thread Stack Size (in Kbytes)") \ | |
3367 \ | |
3368 product_pd(intx, CompilerThreadStackSize, \ | |
3369 "Compiler Thread Stack Size (in Kbytes)") \ | |
3370 \ | |
3371 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
3372 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
3373 \ | |
3374 product(uintx, ThreadSafetyMargin, 50*M, \ | |
3375 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
3376 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
3377 "disable this feature") \ | |
3378 \ | |
3379 /* code cache parameters */ \ | |
3380 develop(uintx, CodeCacheSegmentSize, 64, \ | |
3381 "Code cache segment size (in bytes) - smallest unit of " \ | |
3382 "allocation") \ | |
3383 \ | |
3384 develop_pd(intx, CodeEntryAlignment, \ | |
3385 "Code entry alignment for generated code (in bytes)") \ | |
3386 \ | |
1365 | 3387 product_pd(intx, OptoLoopAlignment, \ |
3388 "Align inner loops to zero relative to this modulus") \ | |
3389 \ | |
0 | 3390 product_pd(uintx, InitialCodeCacheSize, \ |
3391 "Initial code cache size (in bytes)") \ | |
3392 \ | |
3393 product_pd(uintx, ReservedCodeCacheSize, \ | |
3394 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
3395 \ | |
3396 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
3397 "When less than X space left, we stop compiling.") \ | |
3398 \ | |
3399 product_pd(uintx, CodeCacheExpansionSize, \ | |
3400 "Code cache expansion size (in bytes)") \ | |
3401 \ | |
3402 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
3403 "Minimum number of segments in a code cache block.") \ | |
3404 \ | |
3405 notproduct(bool, ExitOnFullCodeCache, false, \ | |
3406 "Exit the VM if we fill the code cache.") \ | |
3407 \ | |
4039 | 3408 product(bool, UseCodeCacheFlushing, true, \ |
1202 | 3409 "Attempt to clean the code cache before shutting off compiler") \ |
3410 \ | |
3411 product(intx, MinCodeCacheFlushingInterval, 30, \ | |
3412 "Min number of seconds between code cache cleaning sessions") \ | |
3413 \ | |
3414 product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ | |
3415 "When less than X space left, start code cache cleaning") \ | |
3416 \ | |
0 | 3417 /* interpreter debugging */ \ |
3418 develop(intx, BinarySwitchThreshold, 5, \ | |
3419 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
3420 "switch") \ | |
3421 \ | |
3422 develop(intx, StopInterpreterAt, 0, \ | |
3423 "Stops interpreter execution at specified bytecode number") \ | |
3424 \ | |
3425 develop(intx, TraceBytecodesAt, 0, \ | |
3426 "Traces bytecodes starting with specified bytecode number") \ | |
3427 \ | |
3428 /* compiler interface */ \ | |
3429 develop(intx, CIStart, 0, \ | |
3430 "the id of the first compilation to permit") \ | |
3431 \ | |
3432 develop(intx, CIStop, -1, \ | |
3433 "the id of the last compilation to permit") \ | |
3434 \ | |
3435 develop(intx, CIStartOSR, 0, \ | |
3436 "the id of the first osr compilation to permit " \ | |
3437 "(CICountOSR must be on)") \ | |
3438 \ | |
3439 develop(intx, CIStopOSR, -1, \ | |
3440 "the id of the last osr compilation to permit " \ | |
3441 "(CICountOSR must be on)") \ | |
3442 \ | |
3443 develop(intx, CIBreakAtOSR, -1, \ | |
3444 "id of osr compilation to break at") \ | |
3445 \ | |
3446 develop(intx, CIBreakAt, -1, \ | |
3447 "id of compilation to break at") \ | |
3448 \ | |
3449 product(ccstrlist, CompileOnly, "", \ | |
3450 "List of methods (pkg/class.name) to restrict compilation to") \ | |
3451 \ | |
3452 product(ccstr, CompileCommandFile, NULL, \ | |
3453 "Read compiler commands from this file [.hotspot_compiler]") \ | |
3454 \ | |
3455 product(ccstrlist, CompileCommand, "", \ | |
3456 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
3457 \ | |
3458 product(bool, CICompilerCountPerCPU, false, \ | |
3459 "1 compiler thread for log(N CPUs)") \ | |
3460 \ | |
3461 develop(intx, CIFireOOMAt, -1, \ | |
3462 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
3463 "(non-negative value throws OOM after this many CI accesses " \ | |
3464 "in each compile)") \ | |
3465 \ | |
3466 develop(intx, CIFireOOMAtDelay, -1, \ | |
3467 "Wait for this many CI accesses to occur in all compiles before " \ | |
3468 "beginning to throw OutOfMemoryErrors in each compile") \ | |
3469 \ | |
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3470 notproduct(bool, CIObjectFactoryVerify, false, \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3471 "enable potentially expensive verification in ciObjectFactory") \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3472 \ |
0 | 3473 /* Priorities */ \ |
3474 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
3475 \ | |
3476 product(intx, ThreadPriorityPolicy, 0, \ | |
3477 "0 : Normal. "\ | |
3478 " VM chooses priorities that are appropriate for normal "\ | |
3479 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
3480 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
3481 " map to lower native priority values. On Windows applications"\ | |
3482 " are allowed to use higher native priorities. However, with "\ | |
3483 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
3484 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
3485 " interfere with system threads. On Linux thread priorities "\ | |
3486 " are ignored because the OS does not support static priority "\ | |
3487 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
3488 " non-root, non-realtime applications. "\ | |
3489 "1 : Aggressive. "\ | |
3490 " Java thread priorities map over to the entire range of "\ | |
3491 " native thread priorities. Higher Java thread priorities map "\ | |
3492 " to higher native thread priorities. This policy should be "\ | |
3493 " used with care, as sometimes it can cause performance "\ | |
3494 " degradation in the application and/or the entire system. On "\ | |
3495 " Linux this policy requires root privilege.") \ | |
3496 \ | |
3497 product(bool, ThreadPriorityVerbose, false, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3498 "Print priority changes") \ |
0 | 3499 \ |
3500 product(intx, DefaultThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3501 "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
|
3502 "specified (-1 means no change)") \ |
0 | 3503 \ |
3504 product(intx, CompilerThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3505 "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
|
3506 "(-1 means no change)") \ |
0 | 3507 \ |
3508 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
|
3509 "The native priority at which the VM thread should run " \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3510 "(-1 means no change)") \ |
0 | 3511 \ |
3512 product(bool, CompilerThreadHintNoPreempt, true, \ | |
3513 "(Solaris only) Give compiler threads an extra quanta") \ | |
3514 \ | |
3515 product(bool, VMThreadHintNoPreempt, false, \ | |
3516 "(Solaris only) Give VM thread an extra quanta") \ | |
3517 \ | |
3518 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3519 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3520 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3521 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3522 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3523 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3524 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3525 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3526 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3527 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
3528 \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3529 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
|
3530 "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
|
3531 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3532 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
|
3533 "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
|
3534 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3535 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
|
3536 "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
|
3537 \ |
0 | 3538 /* compiler debugging */ \ |
3539 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
3540 "First class to consider when using +CompileTheWorld") \ | |
3541 \ | |
3542 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
3543 "Last class to consider when using +CompileTheWorld") \ | |
3544 \ | |
3545 develop(intx, NewCodeParameter, 0, \ | |
3546 "Testing Only: Create a dedicated integer parameter before " \ | |
3547 "putback") \ | |
3548 \ | |
3549 /* new oopmap storage allocation */ \ | |
3550 develop(intx, MinOopMapAllocation, 8, \ | |
3551 "Minimum number of OopMap entries in an OopMapSet") \ | |
3552 \ | |
3553 /* Background Compilation */ \ | |
3554 develop(intx, LongCompileThreshold, 50, \ | |
3555 "Used with +TraceLongCompiles") \ | |
3556 \ | |
3557 product(intx, StarvationMonitorInterval, 200, \ | |
3558 "Pause between each check in ms") \ | |
3559 \ | |
3560 /* recompilation */ \ | |
3561 product_pd(intx, CompileThreshold, \ | |
3562 "number of interpreted method invocations before (re-)compiling") \ | |
3563 \ | |
3564 product_pd(intx, BackEdgeThreshold, \ | |
3565 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
3566 \ | |
1783 | 3567 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
3568 "Interpreter (tier 0) invocation notification frequency.") \ | |
3569 \ | |
3570 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
3571 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3572 \ | |
3573 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
3574 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3575 "frequency.") \ | |
3576 \ | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3577 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3578 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3579 \ |
1783 | 3580 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
3581 "Interpreter (tier 0) invocation notification frequency.") \ | |
3582 \ | |
3583 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
3584 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3585 \ | |
3586 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
3587 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3588 "frequency.") \ | |
3589 \ | |
3590 product(intx, Tier2CompileThreshold, 0, \ | |
3591 "threshold at which tier 2 compilation is invoked") \ | |
3592 \ | |
3593 product(intx, Tier2BackEdgeThreshold, 0, \ | |
3594 "Back edge threshold at which tier 2 compilation is invoked") \ | |
3595 \ | |
3596 product(intx, Tier3InvocationThreshold, 200, \ | |
3597 "Compile if number of method invocations crosses this " \ | |
3598 "threshold") \ | |
3599 \ | |
3600 product(intx, Tier3MinInvocationThreshold, 100, \ | |
3601 "Minimum invocation to compile at tier 3") \ | |
3602 \ | |
3603 product(intx, Tier3CompileThreshold, 2000, \ | |
3604 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
3605 "minimum must be satisfied.") \ | |
3606 \ | |
4819 | 3607 product(intx, Tier3BackEdgeThreshold, 60000, \ |
1783 | 3608 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
3609 \ | |
3610 product(intx, Tier4InvocationThreshold, 5000, \ | |
3611 "Compile if number of method invocations crosses this " \ | |
3612 "threshold") \ | |
3613 \ | |
3614 product(intx, Tier4MinInvocationThreshold, 600, \ | |
3615 "Minimum invocation to compile at tier 4") \ | |
3616 \ | |
3617 product(intx, Tier4CompileThreshold, 15000, \ | |
3618 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
3619 "minimum must be satisfied.") \ | |
3620 \ | |
3621 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
3622 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
3623 \ | |
3624 product(intx, Tier3DelayOn, 5, \ | |
3625 "If C2 queue size grows over this amount per compiler thread " \ | |
3626 "stop compiling at tier 3 and start compiling at tier 2") \ | |
3627 \ | |
3628 product(intx, Tier3DelayOff, 2, \ | |
3629 "If C2 queue size is less than this amount per compiler thread " \ | |
3630 "allow methods compiled at tier 2 transition to tier 3") \ | |
3631 \ | |
3632 product(intx, Tier3LoadFeedback, 5, \ | |
3633 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
3634 "reaches this amount per compiler thread") \ | |
3635 \ | |
3636 product(intx, Tier4LoadFeedback, 3, \ | |
3637 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
3638 "reaches this amount per compiler thread") \ | |
3639 \ | |
3640 product(intx, TieredCompileTaskTimeout, 50, \ | |
3641 "Kill compile task if method was not used within " \ | |
3642 "given timeout in milliseconds") \ | |
3643 \ | |
3644 product(intx, TieredStopAtLevel, 4, \ | |
3645 "Stop at given compilation level") \ | |
3646 \ | |
3647 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
3648 "Start profiling in interpreter if the counters exceed tier 3" \ | |
3649 "thresholds by the specified percentage") \ | |
3650 \ | |
3651 product(intx, TieredRateUpdateMinTime, 1, \ | |
3652 "Minimum rate sampling interval (in milliseconds)") \ | |
3653 \ | |
3654 product(intx, TieredRateUpdateMaxTime, 25, \ | |
3655 "Maximum rate sampling interval (in milliseconds)") \ | |
0 | 3656 \ |
3657 product_pd(bool, TieredCompilation, \ | |
1783 | 3658 "Enable tiered compilation") \ |
3659 \ | |
3660 product(bool, PrintTieredEvents, false, \ | |
3661 "Print tiered events notifications") \ | |
0 | 3662 \ |
3663 product(bool, StressTieredRuntime, false, \ | |
3664 "Alternate client and server compiler on compile requests") \ | |
3665 \ | |
3666 product_pd(intx, OnStackReplacePercentage, \ | |
3667 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3668 "of CompileThreshold) before (re-)compiling OSR code") \ | |
3669 \ | |
3670 product(intx, InterpreterProfilePercentage, 33, \ | |
3671 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3672 "of CompileThreshold) before profiling in the interpreter") \ | |
3673 \ | |
3674 develop(intx, MaxRecompilationSearchLength, 10, \ | |
3675 "max. # frames to inspect searching for recompilee") \ | |
3676 \ | |
3677 develop(intx, MaxInterpretedSearchLength, 3, \ | |
3678 "max. # interp. frames to skip when searching for recompilee") \ | |
3679 \ | |
3680 develop(intx, DesiredMethodLimit, 8000, \ | |
3681 "desired max. method size (in bytecodes) after inlining") \ | |
3682 \ | |
3683 develop(intx, HugeMethodLimit, 8000, \ | |
3684 "don't compile methods larger than this if " \ | |
3685 "+DontCompileHugeMethods") \ | |
3686 \ | |
3687 /* New JDK 1.4 reflection implementation */ \ | |
3688 \ | |
3689 develop(bool, UseNewReflection, true, \ | |
3690 "Temporary flag for transition to reflection based on dynamic " \ | |
3691 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
3692 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
3693 "changes were needed") \ | |
3694 \ | |
3695 develop(bool, VerifyReflectionBytecodes, false, \ | |
3696 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
3697 "in situations like that described in 4486457 or for " \ | |
3698 "constructors generated for serialization, so can not be enabled "\ | |
3699 "in product.") \ | |
3700 \ | |
3701 product(bool, ReflectionWrapResolutionErrors, true, \ | |
3702 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
3703 "in InvocationTargetException. See 6531596") \ | |
3704 \ | |
3705 \ | |
3706 develop(intx, FastSuperclassLimit, 8, \ | |
3707 "Depth of hardwired instanceof accelerator array") \ | |
3708 \ | |
3709 /* Properties for Java libraries */ \ | |
3710 \ | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6197
diff
changeset
|
3711 product(uintx, MaxDirectMemorySize, 0, \ |
0 | 3712 "Maximum total size of NIO direct-buffer allocations") \ |
3713 \ | |
3714 /* temporary developer defined flags */ \ | |
3715 \ | |
3716 diagnostic(bool, UseNewCode, false, \ | |
3717 "Testing Only: Use the new version while testing") \ | |
3718 \ | |
3719 diagnostic(bool, UseNewCode2, false, \ | |
3720 "Testing Only: Use the new version while testing") \ | |
3721 \ | |
3722 diagnostic(bool, UseNewCode3, false, \ | |
3723 "Testing Only: Use the new version while testing") \ | |
3724 \ | |
3725 /* flags for performance data collection */ \ | |
3726 \ | |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3727 product(bool, UsePerfData, falseInEmbedded, \ |
0 | 3728 "Flag to disable jvmstat instrumentation for performance testing" \ |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3729 "and problem isolation purposes.") \ |
0 | 3730 \ |
3731 product(bool, PerfDataSaveToFile, false, \ | |
3732 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
3733 \ | |
3734 product(ccstr, PerfDataSaveFile, NULL, \ | |
3735 "Save PerfData memory to the specified absolute pathname," \ | |
3736 "%p in the file name if present will be replaced by pid") \ | |
3737 \ | |
3738 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
3739 "Data sampling interval in milliseconds") \ | |
3740 \ | |
3741 develop(bool, PerfTraceDataCreation, false, \ | |
3742 "Trace creation of Performance Data Entries") \ | |
3743 \ | |
3744 develop(bool, PerfTraceMemOps, false, \ | |
3745 "Trace PerfMemory create/attach/detach calls") \ | |
3746 \ | |
3747 product(bool, PerfDisableSharedMem, false, \ | |
3748 "Store performance data in standard memory") \ | |
3749 \ | |
3750 product(intx, PerfDataMemorySize, 32*K, \ | |
3751 "Size of performance data memory region. Will be rounded " \ | |
3752 "up to a multiple of the native os page size.") \ | |
3753 \ | |
3754 product(intx, PerfMaxStringConstLength, 1024, \ | |
3755 "Maximum PerfStringConstant string length before truncation") \ | |
3756 \ | |
3757 product(bool, PerfAllowAtExitRegistration, false, \ | |
3758 "Allow registration of atexit() methods") \ | |
3759 \ | |
3760 product(bool, PerfBypassFileSystemCheck, false, \ | |
3761 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
3762 \ | |
3763 product(intx, UnguardOnExecutionViolation, 0, \ | |
3764 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
3765 "0=off, 1=conservative, 2=aggressive") \ | |
3766 \ | |
3767 /* Serviceability Support */ \ | |
3768 \ | |
3769 product(bool, ManagementServer, false, \ | |
3770 "Create JMX Management Server") \ | |
3771 \ | |
3772 product(bool, DisableAttachMechanism, false, \ | |
3773 "Disable mechanism that allows tools to attach to this VM") \ | |
3774 \ | |
3775 product(bool, StartAttachListener, false, \ | |
3776 "Always start Attach Listener at VM startup") \ | |
3777 \ | |
3778 manageable(bool, PrintConcurrentLocks, false, \ | |
3779 "Print java.util.concurrent locks in thread dump") \ | |
3780 \ | |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3781 product(bool, TransmitErrorReport, false, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3782 "Enable error report transmission on erroneous termination") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3783 \ |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3784 product(ccstr, ErrorReportServer, NULL, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3785 "Override built-in error report server address") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3786 \ |
0 | 3787 /* Shared spaces */ \ |
3788 \ | |
3789 product(bool, UseSharedSpaces, true, \ | |
3790 "Use shared spaces in the permanent generation") \ | |
3791 \ | |
3792 product(bool, RequireSharedSpaces, false, \ | |
3793 "Require shared spaces in the permanent generation") \ | |
3794 \ | |
3795 product(bool, DumpSharedSpaces, false, \ | |
3796 "Special mode: JVM reads a class list, loads classes, builds " \ | |
3797 "shared spaces, and dumps the shared spaces to a file to be " \ | |
3798 "used in future JVM runs.") \ | |
3799 \ | |
3800 product(bool, PrintSharedSpaces, false, \ | |
3801 "Print usage of shared spaces") \ | |
3802 \ | |
3803 product(uintx, SharedDummyBlockSize, 512*M, \ | |
3804 "Size of dummy block used to shift heap addresses (in bytes)") \ | |
3805 \ | |
1875 | 3806 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(13*M), \ |
0 | 3807 "Size of read-write space in permanent generation (in bytes)") \ |
3808 \ | |
910
10d8c0d0d60e
6867645: java -Xshare:dump failed - read only space too small
jcoomes
parents:
909
diff
changeset
|
3809 product(uintx, SharedReadOnlySize, 10*M, \ |
0 | 3810 "Size of read-only space in permanent generation (in bytes)") \ |
3811 \ | |
5979
fc9d8850ab8b
7150058: Allocate symbols from null boot loader to an arena for NMT
coleenp
parents:
5947
diff
changeset
|
3812 product(uintx, SharedMiscDataSize, NOT_LP64(4*M) LP64_ONLY(5*M) NOT_PRODUCT(+1*M), \ |
0 | 3813 "Size of the shared data area adjacent to the heap (in bytes)") \ |
3814 \ | |
3815 product(uintx, SharedMiscCodeSize, 4*M, \ | |
3816 "Size of the shared code area adjacent to the heap (in bytes)") \ | |
3817 \ | |
3818 diagnostic(bool, SharedOptimizeColdStart, true, \ | |
3819 "At dump time, order shared objects to achieve better " \ | |
3820 "cold startup time.") \ | |
3821 \ | |
3822 develop(intx, SharedOptimizeColdStartPolicy, 2, \ | |
3823 "Reordering policy for SharedOptimizeColdStart " \ | |
3824 "0=favor classload-time locality, 1=balanced, " \ | |
3825 "2=favor runtime locality") \ | |
3826 \ | |
3827 diagnostic(bool, SharedSkipVerify, false, \ | |
3828 "Skip assert() and verify() which page-in unwanted shared " \ | |
3829 "objects. ") \ | |
3830 \ | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3831 diagnostic(bool, EnableInvokeDynamic, true, \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3832 "support JSR 292 (method handles, invokedynamic, " \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3833 "anonymous classes") \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3834 \ |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
406
diff
changeset
|
3835 product(bool, AnonymousClasses, false, \ |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3836 "support sun.misc.Unsafe.defineAnonymousClass (deprecated)") \ |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
406
diff
changeset
|
3837 \ |
3757
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3838 diagnostic(bool, PrintMethodHandleStubs, false, \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3839 "Print generated stub code for method handles") \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3840 \ |
710 | 3841 develop(bool, TraceMethodHandles, false, \ |
3842 "trace internal method handle operations") \ | |
3843 \ | |
3844 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
3845 "perform extra checks when constructing method handles") \ | |
3846 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3847 diagnostic(bool, ShowHiddenFrames, false, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3848 "show method handle implementation frames (usually hidden)") \ |
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3849 \ |
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3850 experimental(bool, TrustFinalNonStaticFields, false, \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3851 "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
|
3852 \ |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3853 develop(bool, TraceInvokeDynamic, false, \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3854 "trace internal invoke dynamic operations") \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3855 \ |
0 | 3856 diagnostic(bool, PauseAtStartup, false, \ |
3857 "Causes the VM to pause at startup time and wait for the pause " \ | |
3858 "file to be removed (default: ./vm.paused.<pid>)") \ | |
3859 \ | |
3860 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
3861 "The file to create and for whose removal to await when pausing " \ | |
3862 "at startup. (default: ./vm.paused.<pid>)") \ | |
3863 \ | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3864 diagnostic(bool, PauseAtExit, false, \ |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3865 "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
|
3866 \ |
0 | 3867 product(bool, ExtendedDTraceProbes, false, \ |
3868 "Enable performance-impacting dtrace probes") \ | |
3869 \ | |
3870 product(bool, DTraceMethodProbes, false, \ | |
3871 "Enable dtrace probes for method-entry and method-exit") \ | |
3872 \ | |
3873 product(bool, DTraceAllocProbes, false, \ | |
3874 "Enable dtrace probes for object allocation") \ | |
3875 \ | |
3876 product(bool, DTraceMonitorProbes, false, \ | |
3877 "Enable dtrace probes for monitor events") \ | |
3878 \ | |
3879 product(bool, RelaxAccessControlCheck, false, \ | |
3880 "Relax the access control checks in the verifier") \ | |
3881 \ | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3882 diagnostic(bool, PrintDTraceDOF, false, \ |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3883 "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
|
3884 \ |
2378 | 3885 product(uintx, StringTableSize, 1009, \ |
3886 "Number of buckets in the interned String table") \ | |
3887 \ | |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3888 product(bool, UseVMInterruptibleIO, false, \ |
0 | 3889 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3890 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
5915 | 3891 " of this flag is true for JDK 6 and earlier") \ |
3892 \ | |
3893 diagnostic(bool, WhiteBoxAPI, false, \ | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3894 "Enable internal testing APIs") \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3895 \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3896 product(bool, PrintGCCause, true, \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3897 "Include GC cause in GC logging") |
0 | 3898 |
3899 /* | |
3900 * Macros for factoring of globals | |
3901 */ | |
3902 | |
3903 // Interface macros | |
3904 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3905 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; | |
3906 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; | |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3907 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3908 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
3909 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; | |
3910 #ifdef PRODUCT | |
3911 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; | |
3912 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; | |
3913 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3914 #else | |
3915 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; | |
3916 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; | |
3917 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
3918 #endif | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3919 // Special LP64 flags, product only needed for now. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3920 #ifdef _LP64 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3921 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3922 #else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3923 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3924 #endif // _LP64 |
0 | 3925 |
3926 // Implementation macros | |
3927 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; | |
3928 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; | |
3929 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; | |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3930 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
0 | 3931 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
3932 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; | |
3933 #ifdef PRODUCT | |
3934 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ | |
3935 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ | |
3936 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) | |
3937 #else | |
3938 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; | |
3939 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; | |
3940 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; | |
3941 #endif | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3942 #ifdef _LP64 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3943 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3944 #else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3945 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3946 #endif // _LP64 |
0 | 3947 |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3948 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 | 3949 |
3950 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
1972 | 3951 |
4107
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3952 // Extensions |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3953 |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3954 #include "runtime/globals_ext.hpp" |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3955 |
1972 | 3956 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |