Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/globals.hpp @ 6608:fce6d7280776
Merge
| author | dcubed |
|---|---|
| date | Fri, 17 Aug 2012 11:57:46 -0700 |
| parents | 1d7922586cf6 4ee06e614636 |
| children | a5dd6e3ef9f3 |
| 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_RUNTIME_GLOBALS_HPP |
| 26 #define SHARE_VM_RUNTIME_GLOBALS_HPP | |
| 27 | |
| 28 #include "utilities/debug.hpp" | |
| 4868 | 29 |
| 30 // use this for flags that are true per default in the tiered build | |
| 31 // but false in non-tiered builds, and vice versa | |
| 32 #ifdef TIERED | |
| 33 #define trueInTiered true | |
| 34 #define falseInTiered false | |
| 35 #else | |
| 36 #define trueInTiered false | |
| 37 #define falseInTiered true | |
| 38 #endif | |
| 39 | |
| 1972 | 40 #ifdef TARGET_ARCH_x86 |
| 41 # include "globals_x86.hpp" | |
| 42 #endif | |
| 43 #ifdef TARGET_ARCH_sparc | |
| 44 # include "globals_sparc.hpp" | |
| 45 #endif | |
| 46 #ifdef TARGET_ARCH_zero | |
| 47 # include "globals_zero.hpp" | |
| 48 #endif | |
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49 #ifdef TARGET_ARCH_arm |
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50 # include "globals_arm.hpp" |
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51 #endif |
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52 #ifdef TARGET_ARCH_ppc |
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53 # include "globals_ppc.hpp" |
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54 #endif |
| 1972 | 55 #ifdef TARGET_OS_FAMILY_linux |
| 56 # include "globals_linux.hpp" | |
| 57 #endif | |
| 58 #ifdef TARGET_OS_FAMILY_solaris | |
| 59 # include "globals_solaris.hpp" | |
| 60 #endif | |
| 61 #ifdef TARGET_OS_FAMILY_windows | |
| 62 # include "globals_windows.hpp" | |
| 63 #endif | |
| 3960 | 64 #ifdef TARGET_OS_FAMILY_bsd |
| 65 # include "globals_bsd.hpp" | |
| 66 #endif | |
| 1972 | 67 #ifdef TARGET_OS_ARCH_linux_x86 |
| 68 # include "globals_linux_x86.hpp" | |
| 69 #endif | |
| 70 #ifdef TARGET_OS_ARCH_linux_sparc | |
| 71 # include "globals_linux_sparc.hpp" | |
| 72 #endif | |
| 73 #ifdef TARGET_OS_ARCH_linux_zero | |
| 74 # include "globals_linux_zero.hpp" | |
| 75 #endif | |
| 76 #ifdef TARGET_OS_ARCH_solaris_x86 | |
| 77 # include "globals_solaris_x86.hpp" | |
| 78 #endif | |
| 79 #ifdef TARGET_OS_ARCH_solaris_sparc | |
| 80 # include "globals_solaris_sparc.hpp" | |
| 81 #endif | |
| 82 #ifdef TARGET_OS_ARCH_windows_x86 | |
| 83 # include "globals_windows_x86.hpp" | |
| 84 #endif | |
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85 #ifdef TARGET_OS_ARCH_linux_arm |
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86 # include "globals_linux_arm.hpp" |
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87 #endif |
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88 #ifdef TARGET_OS_ARCH_linux_ppc |
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89 # include "globals_linux_ppc.hpp" |
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90 #endif |
| 3960 | 91 #ifdef TARGET_OS_ARCH_bsd_x86 |
| 92 # include "globals_bsd_x86.hpp" | |
| 93 #endif | |
| 94 #ifdef TARGET_OS_ARCH_bsd_zero | |
| 95 # include "globals_bsd_zero.hpp" | |
| 96 #endif | |
| 1972 | 97 #ifdef COMPILER1 |
| 98 #ifdef TARGET_ARCH_x86 | |
| 99 # include "c1_globals_x86.hpp" | |
| 100 #endif | |
| 101 #ifdef TARGET_ARCH_sparc | |
| 102 # include "c1_globals_sparc.hpp" | |
| 103 #endif | |
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104 #ifdef TARGET_ARCH_arm |
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105 # include "c1_globals_arm.hpp" |
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106 #endif |
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107 #ifdef TARGET_ARCH_ppc |
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108 # include "c1_globals_ppc.hpp" |
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109 #endif |
| 1972 | 110 #ifdef TARGET_OS_FAMILY_linux |
| 111 # include "c1_globals_linux.hpp" | |
| 112 #endif | |
| 113 #ifdef TARGET_OS_FAMILY_solaris | |
| 114 # include "c1_globals_solaris.hpp" | |
| 115 #endif | |
| 116 #ifdef TARGET_OS_FAMILY_windows | |
| 117 # include "c1_globals_windows.hpp" | |
| 118 #endif | |
| 3960 | 119 #ifdef TARGET_OS_FAMILY_bsd |
| 120 # include "c1_globals_bsd.hpp" | |
| 121 #endif | |
| 1972 | 122 #endif |
| 123 #ifdef COMPILER2 | |
| 124 #ifdef TARGET_ARCH_x86 | |
| 125 # include "c2_globals_x86.hpp" | |
| 126 #endif | |
| 127 #ifdef TARGET_ARCH_sparc | |
| 128 # include "c2_globals_sparc.hpp" | |
| 129 #endif | |
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130 #ifdef TARGET_ARCH_arm |
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131 # include "c2_globals_arm.hpp" |
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132 #endif |
| 1972 | 133 #ifdef TARGET_OS_FAMILY_linux |
| 134 # include "c2_globals_linux.hpp" | |
| 135 #endif | |
| 136 #ifdef TARGET_OS_FAMILY_solaris | |
| 137 # include "c2_globals_solaris.hpp" | |
| 138 #endif | |
| 139 #ifdef TARGET_OS_FAMILY_windows | |
| 140 # include "c2_globals_windows.hpp" | |
| 141 #endif | |
| 3960 | 142 #ifdef TARGET_OS_FAMILY_bsd |
| 143 # include "c2_globals_bsd.hpp" | |
| 144 #endif | |
| 1972 | 145 #endif |
| 146 #ifdef SHARK | |
| 147 #ifdef TARGET_ARCH_zero | |
| 148 # include "shark_globals_zero.hpp" | |
| 149 #endif | |
| 150 #endif | |
| 151 | |
| 1692 | 152 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) |
| 0 | 153 define_pd_global(bool, BackgroundCompilation, false); |
| 154 define_pd_global(bool, UseTLAB, false); | |
| 155 define_pd_global(bool, CICompileOSR, false); | |
| 156 define_pd_global(bool, UseTypeProfile, false); | |
| 157 define_pd_global(bool, UseOnStackReplacement, false); | |
| 158 define_pd_global(bool, InlineIntrinsics, false); | |
| 159 define_pd_global(bool, PreferInterpreterNativeStubs, true); | |
| 160 define_pd_global(bool, ProfileInterpreter, false); | |
| 161 define_pd_global(bool, ProfileTraps, false); | |
| 162 define_pd_global(bool, TieredCompilation, false); | |
| 163 | |
| 164 define_pd_global(intx, CompileThreshold, 0); | |
| 165 define_pd_global(intx, BackEdgeThreshold, 0); | |
| 166 | |
| 167 define_pd_global(intx, OnStackReplacePercentage, 0); | |
| 168 define_pd_global(bool, ResizeTLAB, false); | |
| 169 define_pd_global(intx, FreqInlineSize, 0); | |
| 1064 | 170 define_pd_global(intx, InlineSmallCode, 0); |
| 0 | 171 define_pd_global(intx, NewSizeThreadIncrease, 4*K); |
| 172 define_pd_global(intx, InlineClassNatives, true); | |
| 173 define_pd_global(intx, InlineUnsafeOps, true); | |
| 174 define_pd_global(intx, InitialCodeCacheSize, 160*K); | |
| 175 define_pd_global(intx, ReservedCodeCacheSize, 32*M); | |
| 176 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
| 177 define_pd_global(intx, CodeCacheMinBlockLength, 1); | |
| 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; | |
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212 |
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213 NOT_PRODUCT(const char *doc;) |
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214 |
| 0 | 215 const char *kind; |
| 216 FlagValueOrigin origin; | |
| 217 | |
| 218 // points to all Flags static array | |
| 219 static Flag *flags; | |
| 220 | |
| 221 // number of flags | |
| 222 static size_t numFlags; | |
| 223 | |
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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 | |
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256 bool is_unlocker_ext() const; |
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257 bool is_unlocked_ext() const; |
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258 bool is_writeable_ext() const; |
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259 bool is_external_ext() const; |
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260 |
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261 void get_locked_message(char*, int) const; |
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262 void get_locked_message_ext(char*, int) const; |
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263 |
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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 | |
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369 #ifdef JAVASE_EMBEDDED |
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370 #define falseInEmbedded false |
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371 #else |
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372 #define falseInEmbedded true |
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373 #endif |
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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.) | |
|
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393 // |
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394 // experimental flags are in support of features that are not |
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395 // part of the officially supported product, but are available |
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396 // for experimenting with. They could, for example, be performance |
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397 // features that may not have undergone full or rigorous QA, but which may |
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398 // help performance in some cases and released for experimentation |
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399 // by the community of users and developers. This flag also allows one to |
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400 // be able to build a fully supported product that nonetheless also |
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401 // ships with some unsupported, lightly tested, experimental features. |
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402 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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403 // UnlockExperimentalVMOptions flag, which allows the control and |
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404 // modification of the experimental flags. |
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405 // |
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406 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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407 // and they are not supported on production loads, except under explicit |
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408 // direction from support engineers. |
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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 | |
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439 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
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440 \ |
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441 lp64_product(bool, UseCompressedOops, false, \ |
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442 "Use 32-bit object references in 64-bit VM. " \ |
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443 "lp64_product means flag is always constant in 32 bit VM") \ |
| 0 | 444 \ |
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445 notproduct(bool, CheckCompressedOops, true, \ |
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446 "generate checks in encoding/decoding code in debug VM") \ |
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447 \ |
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448 product_pd(uintx, HeapBaseMinAddress, \ |
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449 "OS specific low limit for heap base address") \ |
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450 \ |
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451 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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452 "Print compressed oops base address and encoding mode") \ |
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453 \ |
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454 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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455 "Default object alignment in bytes, 8 is minimum") \ |
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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) */ \ | |
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460 product_pd(bool, UseMembar, \ |
| 0 | 461 "(Unstable) Issues membars on thread state transitions") \ |
| 462 \ | |
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463 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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464 * that don't support it. This will be replaced by processor detection \ |
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465 * logic. \ |
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466 */ \ |
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467 product(bool, UsePPCLWSYNC, true, \ |
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468 "Use lwsync instruction if true, else use slower sync") \ |
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469 \ |
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470 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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471 "Whether to clean the chunk pool asynchronously") \ |
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472 \ |
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473 /* Temporary: See 6948537 */ \ |
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474 experimental(bool, UseMemSetInBOT, true, \ |
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475 "(Unstable) uses memset in BOT updates in GC code") \ |
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476 \ |
| 0 | 477 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
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478 "Enable normal processing of flags relating to field diagnostics")\ |
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479 \ |
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480 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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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 \ | |
|
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489 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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490 "Allocate large pages individually for better affinity") \ |
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491 \ |
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492 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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493 "Fail large pages individual allocation") \ |
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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 \ | |
|
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507 product(bool, ForceNUMA, false, \ |
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508 "Force NUMA optimizations on single-node/UMA systems") \ |
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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 \ | |
|
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591 diagnostic(bool, ForceUnreachable, false, \ |
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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, \ | |
|
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659 "special version of Arrays.equals(char[],char[])") \ |
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660 \ |
|
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661 product(bool, CriticalJNINatives, true, \ |
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|
662 "check for critical JNI entry points") \ |
|
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|
663 \ |
|
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|
664 notproduct(bool, StressCriticalJNINatives, false, \ |
|
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|
665 "Exercise register saving code in critical natives") \ |
|
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|
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
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|
688 product(bool, UnlinkSymbolsALot, false, \ |
|
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|
689 "unlink unreferenced symbols from the symbol table at safepoints")\ |
|
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|
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 \ | |
|
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744 diagnostic(bool, LogEvents, true, \ |
|
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|
745 "Enable the various ring buffer event logs") \ |
|
aa3d708d67c4
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|
746 \ |
|
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|
747 diagnostic(intx, LogEventsBufferEntries, 10, \ |
|
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|
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
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|
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
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|
808 notproduct(bool, ZapStackSegments, trueInDebug, \ |
|
894b1d7c7e01
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|
809 "Zap allocated/freed Stack segments with 0xFADFADED") \ |
|
894b1d7c7e01
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|
810 \ |
|
263
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|
811 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
| 0 | 812 "Zap unused heap space with 0xBAADBABE") \ |
| 813 \ | |
|
263
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|
814 develop(bool, TraceZapUnusedHeapArea, false, \ |
|
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|
815 "Trace zapping of unused heap space") \ |
|
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
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|
816 \ |
|
12eea04c8b06
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|
817 develop(bool, CheckZapUnusedHeapArea, false, \ |
|
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|
818 "Check zapping of unused heap space") \ |
|
12eea04c8b06
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|
819 \ |
|
481
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|
820 develop(bool, ZapFillerObjects, trueInDebug, \ |
|
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|
821 "Zap filler objects with 0xDEAFBABE") \ |
|
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|
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 \ | |
| 6605 | 832 diagnostic(bool, VerboseVerification, false, \ |
| 833 "Display detailed verification details") \ | |
| 834 \ | |
|
1490
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|
835 notproduct(uintx, ErrorHandlerTest, 0, \ |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
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diff
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|
836 "If > 0, provokes an error after VM initialization; the value" \ |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
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|
837 "determines which error to provoke. See test_error_handler()" \ |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
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|
838 "in debug.cpp.") \ |
|
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|
839 \ |
| 0 | 840 develop(bool, Verbose, false, \ |
| 841 "Prints additional debugging information from other modes") \ | |
| 842 \ | |
| 843 develop(bool, PrintMiscellaneous, false, \ | |
| 844 "Prints uncategorized debugging information (requires +Verbose)") \ | |
| 845 \ | |
| 846 develop(bool, WizardMode, false, \ | |
| 847 "Prints much more debugging information") \ | |
| 848 \ | |
| 849 product(bool, ShowMessageBoxOnError, false, \ | |
| 850 "Keep process alive on VM fatal error") \ | |
| 851 \ | |
|
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
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diff
changeset
|
852 product(bool, CreateMinidumpOnCrash, false, \ |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
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diff
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|
853 "Create minidump on VM fatal error") \ |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
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diff
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|
854 \ |
| 0 | 855 product_pd(bool, UseOSErrorReporting, \ |
| 856 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
| 857 \ | |
| 858 product(bool, SuppressFatalErrorMessage, false, \ | |
| 859 "Do NO Fatal Error report [Avoid deadlock]") \ | |
| 860 \ | |
| 861 product(ccstrlist, OnError, "", \ | |
| 862 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
| 863 "for examples") \ | |
| 864 \ | |
| 865 product(ccstrlist, OnOutOfMemoryError, "", \ | |
| 866 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
| 867 \ | |
|
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
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parents:
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diff
changeset
|
868 manageable(bool, HeapDumpBeforeFullGC, false, \ |
|
c6c601a0f2d6
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parents:
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diff
changeset
|
869 "Dump heap to file before any major stop-world GC") \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
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diff
changeset
|
870 \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
871 manageable(bool, HeapDumpAfterFullGC, false, \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
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diff
changeset
|
872 "Dump heap to file after any major stop-world GC") \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
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diff
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|
873 \ |
| 0 | 874 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
| 875 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
| 876 \ | |
| 877 manageable(ccstr, HeapDumpPath, NULL, \ | |
| 878 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ | |
| 879 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ | |
| 880 "in the working directory)") \ | |
| 881 \ | |
| 882 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
| 883 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
| 884 "when the heap usage is larger than this") \ | |
| 885 \ | |
| 886 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
| 887 "Approximate segment size when generating a segmented heap dump") \ | |
| 888 \ | |
| 889 develop(bool, BreakAtWarning, false, \ | |
| 890 "Execute breakpoint upon encountering VM warning") \ | |
| 891 \ | |
| 892 product_pd(bool, UseVectoredExceptions, \ | |
| 893 "Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \ | |
| 894 \ | |
| 895 develop(bool, TraceVMOperation, false, \ | |
| 896 "Trace vm operations") \ | |
| 897 \ | |
| 898 develop(bool, UseFakeTimers, false, \ | |
| 899 "Tells whether the VM should use system time or a fake timer") \ | |
| 900 \ | |
| 6197 | 901 product(ccstr, NativeMemoryTracking, "off", \ |
| 902 "Native memory tracking options") \ | |
| 903 \ | |
| 0 | 904 diagnostic(bool, LogCompilation, false, \ |
| 905 "Log compilation activity in detail to hotspot.log or LogFile") \ | |
| 906 \ | |
| 907 product(bool, PrintCompilation, false, \ | |
| 908 "Print compilations") \ | |
| 909 \ | |
| 910 diagnostic(bool, TraceNMethodInstalls, false, \ | |
| 911 "Trace nmethod intallation") \ | |
| 912 \ | |
|
4119
7793051af7d6
7110058: change default for ScavengeRootsInCode to 2
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|
913 diagnostic(intx, ScavengeRootsInCode, 2, \ |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
914 "0: do not allow scavengable oops in the code cache; " \ |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
915 "1: allow scavenging from the code cache; " \ |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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|
916 "2: emit as many constants as the compiler can see") \ |
|
148e5441d916
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changeset
|
917 \ |
| 0 | 918 diagnostic(bool, TraceOSRBreakpoint, false, \ |
| 919 "Trace OSR Breakpoint ") \ | |
| 920 \ | |
| 921 diagnostic(bool, TraceCompileTriggered, false, \ | |
| 922 "Trace compile triggered") \ | |
| 923 \ | |
| 924 diagnostic(bool, TraceTriggers, false, \ | |
| 925 "Trace triggers") \ | |
| 926 \ | |
| 927 product(bool, AlwaysRestoreFPU, false, \ | |
| 928 "Restore the FPU control word after every JNI call (expensive)") \ | |
| 929 \ | |
|
4064
670a74b863fc
7107042: assert(no_dead_loop) failed: dead loop detected
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|
930 diagnostic(bool, PrintCompilation2, false, \ |
| 0 | 931 "Print additional statistics per compilation") \ |
| 932 \ | |
|
100
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|
933 diagnostic(bool, PrintAdapterHandlers, false, \ |
| 0 | 934 "Print code generated for i2c/c2i adapters") \ |
| 935 \ | |
|
6266
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|
936 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
|
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diff
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|
937 "Verify that i2c/c2i adapters are called properly") \ |
|
1d7922586cf6
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|
938 \ |
|
1207
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|
939 develop(bool, VerifyAdapterSharing, false, \ |
|
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|
940 "Verify that the code for shared adapters is the equivalent") \ |
|
74c848d437ab
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|
941 \ |
|
100
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|
942 diagnostic(bool, PrintAssembly, false, \ |
|
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|
943 "Print assembly code (using external disassembler.so)") \ |
|
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|
944 \ |
|
370
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|
945 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
|
100
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|
946 "Options string passed to disassembler.so") \ |
|
c7c777385a15
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|
947 \ |
|
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|
948 diagnostic(bool, PrintNMethods, false, \ |
| 0 | 949 "Print assembly code for nmethods when generated") \ |
| 950 \ | |
|
100
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|
951 diagnostic(bool, PrintNativeNMethods, false, \ |
| 0 | 952 "Print assembly code for native nmethods when generated") \ |
| 953 \ | |
| 954 develop(bool, PrintDebugInfo, false, \ | |
| 955 "Print debug information for all nmethods when generated") \ | |
| 956 \ | |
| 957 develop(bool, PrintRelocations, false, \ | |
| 958 "Print relocation information for all nmethods when generated") \ | |
| 959 \ | |
| 960 develop(bool, PrintDependencies, false, \ | |
| 961 "Print dependency information for all nmethods when generated") \ | |
| 962 \ | |
| 963 develop(bool, PrintExceptionHandlers, false, \ | |
| 964 "Print exception handler tables for all nmethods when generated") \ | |
| 965 \ | |
| 966 develop(bool, InterceptOSException, false, \ | |
| 967 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
| 968 "exception happens") \ | |
| 969 \ | |
| 970 notproduct(bool, PrintCodeCache, false, \ | |
| 971 "Print the compiled_code cache when exiting") \ | |
| 972 \ | |
| 973 develop(bool, PrintCodeCache2, false, \ | |
| 974 "Print detailed info on the compiled_code cache when exiting") \ | |
| 975 \ | |
|
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976 diagnostic(bool, PrintStubCode, false, \ |
| 0 | 977 "Print generated stub code") \ |
| 978 \ | |
| 979 product(bool, StackTraceInThrowable, true, \ | |
| 980 "Collect backtrace in throwable when exception happens") \ | |
| 981 \ | |
| 982 product(bool, OmitStackTraceInFastThrow, true, \ | |
| 983 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
| 984 \ | |
| 985 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
| 986 "Prints byte code statictics when dumping profiler output") \ | |
| 987 \ | |
| 988 product(bool, ProfilerRecordPC, false, \ | |
| 989 "Collects tick for each 16 byte interval of compiled code") \ | |
| 990 \ | |
| 1064 | 991 product(bool, ProfileVM, false, \ |
| 0 | 992 "Profiles ticks that fall within VM (either in the VM Thread " \ |
| 993 "or VM code called through stubs)") \ | |
| 994 \ | |
| 995 product(bool, ProfileIntervals, false, \ | |
| 996 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
| 997 \ | |
| 998 notproduct(bool, ProfilerCheckIntervals, false, \ | |
| 999 "Collect and print info on spacing of profiler ticks") \ | |
| 1000 \ | |
| 1001 develop(bool, PrintJVMWarnings, false, \ | |
| 1002 "Prints warnings for unimplemented JVM functions") \ | |
| 1003 \ | |
|
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1004 product(bool, PrintWarnings, true, \ |
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1005 "Prints JVM warnings to output stream") \ |
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1006 \ |
| 0 | 1007 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
| 1008 "Prints warnings for stalled SpinLocks") \ | |
| 1009 \ | |
| 1010 develop(bool, InitializeJavaLangSystem, true, \ | |
| 1011 "Initialize java.lang.System - turn off for individual " \ | |
| 1012 "method debugging") \ | |
| 1013 \ | |
| 1014 develop(bool, InitializeJavaLangString, true, \ | |
| 1015 "Initialize java.lang.String - turn off for individual " \ | |
| 1016 "method debugging") \ | |
| 1017 \ | |
| 1018 develop(bool, InitializeJavaLangExceptionsErrors, true, \ | |
| 1019 "Initialize various error and exception classes - turn off for " \ | |
| 1020 "individual method debugging") \ | |
| 1021 \ | |
| 1022 product(bool, RegisterFinalizersAtInit, true, \ | |
| 1023 "Register finalizable objects at end of Object.<init> or " \ | |
| 1064 | 1024 "after allocation") \ |
| 0 | 1025 \ |
| 1026 develop(bool, RegisterReferences, true, \ | |
| 1027 "Tells whether the VM should register soft/weak/final/phantom " \ | |
| 1028 "references") \ | |
| 1029 \ | |
| 1030 develop(bool, IgnoreRewrites, false, \ | |
| 1031 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
| 1032 "This is unsafe!") \ | |
| 1033 \ | |
| 1034 develop(bool, PrintCodeCacheExtension, false, \ | |
| 1035 "Print extension of code cache") \ | |
| 1036 \ | |
| 1037 develop(bool, UsePrivilegedStack, true, \ | |
| 1038 "Enable the security JVM functions") \ | |
| 1039 \ | |
| 1040 develop(bool, IEEEPrecision, true, \ | |
| 1041 "Enables IEEE precision (for INTEL only)") \ | |
| 1042 \ | |
| 1043 develop(bool, ProtectionDomainVerification, true, \ | |
| 1044 "Verifies protection domain before resolution in system " \ | |
| 1045 "dictionary") \ | |
| 1046 \ | |
| 1047 product(bool, ClassUnloading, true, \ | |
| 1048 "Do unloading of classes") \ | |
| 1049 \ | |
|
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1050 diagnostic(bool, LinkWellKnownClasses, false, \ |
|
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1051 "Resolve a well known class as soon as its name is seen") \ |
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1052 \ |
| 0 | 1053 develop(bool, DisableStartThread, false, \ |
| 1054 "Disable starting of additional Java threads " \ | |
| 1055 "(for debugging only)") \ | |
| 1056 \ | |
| 1057 develop(bool, MemProfiling, false, \ | |
| 1058 "Write memory usage profiling to log file") \ | |
| 1059 \ | |
| 1060 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
| 1061 "Prints the system dictionary at exit") \ | |
| 1062 \ | |
|
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1063 experimental(intx, PredictedLoadedClassCount, 0, \ |
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1064 "Experimental: Tune loaded class cache starting size.") \ |
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1065 \ |
| 0 | 1066 diagnostic(bool, UnsyncloadClass, false, \ |
| 514 | 1067 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
| 1068 "class loader must call VM synchronized for findClass " \ | |
| 1069 "and defineClass.") \ | |
| 1070 \ | |
| 1071 product(bool, AlwaysLockClassLoader, false, \ | |
| 1072 "Require the VM to acquire the class loader lock before calling " \ | |
| 1073 "loadClass() even for class loaders registering " \ | |
| 1064 | 1074 "as parallel capable") \ |
| 514 | 1075 \ |
| 1076 product(bool, AllowParallelDefineClass, false, \ | |
| 1077 "Allow parallel defineClass requests for class loaders " \ | |
| 1064 | 1078 "registering as parallel capable") \ |
| 514 | 1079 \ |
| 1080 product(bool, MustCallLoadClassInternal, false, \ | |
| 1064 | 1081 "Call loadClassInternal() rather than loadClass()") \ |
| 0 | 1082 \ |
| 1083 product_pd(bool, DontYieldALot, \ | |
| 1084 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
| 1085 \ | |
| 1086 product_pd(bool, ConvertSleepToYield, \ | |
| 1087 "Converts sleep(0) to thread yield " \ | |
| 1088 "(may be off for SOLARIS to improve GUI)") \ | |
| 1089 \ | |
| 1090 product(bool, ConvertYieldToSleep, false, \ | |
| 1091 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
| 1092 "behavior (SOLARIS only)") \ | |
| 1093 \ | |
| 1094 product(bool, UseBoundThreads, true, \ | |
| 1095 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
| 1096 \ | |
| 1097 develop(bool, UseDetachedThreads, true, \ | |
| 1098 "Use detached threads that are recycled upon termination " \ | |
| 1099 "(for SOLARIS only)") \ | |
| 1100 \ | |
| 1101 product(bool, UseLWPSynchronization, true, \ | |
| 1102 "Use LWP-based instead of libthread-based synchronization " \ | |
| 1103 "(SPARC only)") \ | |
| 1104 \ | |
|
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1105 product(ccstr, SyncKnobs, NULL, \ |
| 0 | 1106 "(Unstable) Various monitor synchronization tunables") \ |
| 1107 \ | |
| 1108 product(intx, EmitSync, 0, \ | |
| 1109 "(Unsafe,Unstable) " \ | |
| 1110 " Controls emission of inline sync fast-path code") \ | |
| 1111 \ | |
| 1112 product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \ | |
| 1113 \ | |
| 1587 | 1114 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
| 1115 \ | |
| 1116 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
| 1117 \ | |
| 0 | 1118 product(intx, Atomics, 0, \ |
| 1119 "(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \ | |
| 1120 \ | |
| 1121 product(intx, FenceInstruction, 0, \ | |
| 1122 "(Unsafe,Unstable) Experimental") \ | |
| 1123 \ | |
| 1124 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ | |
| 1125 \ | |
| 1126 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
| 1127 \ | |
| 1128 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
| 1129 \ | |
| 1130 product(intx, hashCode, 0, \ | |
| 1131 "(Unstable) select hashCode generation algorithm" ) \ | |
| 1132 \ | |
| 1133 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
| 1134 "(Unstable, Linux-specific)" \ | |
| 1135 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
| 1136 \ | |
| 1064 | 1137 product(bool, FilterSpuriousWakeups, true, \ |
| 1138 "Prevent spurious or premature wakeups from object.wait " \ | |
| 1139 "(Solaris only)") \ | |
| 0 | 1140 \ |
| 1141 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
| 1142 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
| 1143 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
| 1144 \ | |
| 1145 develop(bool, UsePthreads, false, \ | |
| 1146 "Use pthread-based instead of libthread-based synchronization " \ | |
| 1147 "(SPARC only)") \ | |
| 1148 \ | |
| 1149 product(bool, AdjustConcurrency, false, \ | |
| 1150 "call thr_setconcurrency at thread create time to avoid " \ | |
| 1151 "LWP starvation on MP systems (For Solaris Only)") \ | |
| 1152 \ | |
| 1153 develop(bool, UpdateHotSpotCompilerFileOnError, true, \ | |
| 1154 "Should the system attempt to update the compiler file when " \ | |
| 1155 "an error occurs?") \ | |
| 1156 \ | |
| 1157 product(bool, ReduceSignalUsage, false, \ | |
| 1158 "Reduce the use of OS signals in Java and/or the VM") \ | |
| 1159 \ | |
| 1160 notproduct(bool, ValidateMarkSweep, false, \ | |
| 1161 "Do extra validation during MarkSweep collection") \ | |
| 1162 \ | |
| 1163 notproduct(bool, RecordMarkSweepCompaction, false, \ | |
| 1164 "Enable GC-to-GC recording and querying of compaction during " \ | |
| 1165 "MarkSweep") \ | |
| 1166 \ | |
| 1167 develop_pd(bool, ShareVtableStubs, \ | |
| 1168 "Share vtable stubs (smaller code but worse branch prediction") \ | |
| 1169 \ | |
| 1170 develop(bool, LoadLineNumberTables, true, \ | |
| 1171 "Tells whether the class file parser loads line number tables") \ | |
| 1172 \ | |
| 1173 develop(bool, LoadLocalVariableTables, true, \ | |
| 1174 "Tells whether the class file parser loads local variable tables")\ | |
| 1175 \ | |
| 1176 develop(bool, LoadLocalVariableTypeTables, true, \ | |
| 1177 "Tells whether the class file parser loads local variable type tables")\ | |
| 1178 \ | |
| 1179 product(bool, AllowUserSignalHandlers, false, \ | |
| 1180 "Do not complain if the application installs signal handlers " \ | |
| 1181 "(Solaris & Linux only)") \ | |
| 1182 \ | |
| 1183 product(bool, UseSignalChaining, true, \ | |
| 1184 "Use signal-chaining to invoke signal handlers installed " \ | |
| 1185 "by the application (Solaris & Linux only)") \ | |
| 1186 \ | |
| 1187 product(bool, UseAltSigs, false, \ | |
| 1188 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
| 1064 | 1189 "internal signals (Solaris only)") \ |
| 0 | 1190 \ |
| 1191 product(bool, UseSpinning, false, \ | |
| 1192 "Use spinning in monitor inflation and before entry") \ | |
| 1193 \ | |
| 1194 product(bool, PreSpinYield, false, \ | |
| 1195 "Yield before inner spinning loop") \ | |
| 1196 \ | |
| 1197 product(bool, PostSpinYield, true, \ | |
| 1198 "Yield after inner spinning loop") \ | |
| 1199 \ | |
| 1200 product(bool, AllowJNIEnvProxy, false, \ | |
| 1201 "Allow JNIEnv proxies for jdbx") \ | |
| 1202 \ | |
| 1203 product(bool, JNIDetachReleasesMonitors, true, \ | |
| 1204 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
| 1205 \ | |
| 1206 product(bool, RestoreMXCSROnJNICalls, false, \ | |
| 1207 "Restore MXCSR when returning from JNI calls") \ | |
| 1208 \ | |
| 1209 product(bool, CheckJNICalls, false, \ | |
| 1210 "Verify all arguments to JNI calls") \ | |
| 1211 \ | |
| 1212 product(bool, UseFastJNIAccessors, true, \ | |
| 1213 "Use optimized versions of Get<Primitive>Field") \ | |
| 1214 \ | |
| 1215 product(bool, EagerXrunInit, false, \ | |
| 1216 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
| 1217 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
| 1218 \ | |
| 1219 product(bool, PreserveAllAnnotations, false, \ | |
| 1220 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
| 1221 \ | |
| 1222 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
| 1223 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
| 1224 \ | |
| 1225 product(bool, LazyBootClassLoader, true, \ | |
| 1226 "Enable/disable lazy opening of boot class path entries") \ | |
| 1227 \ | |
| 1228 diagnostic(bool, UseIncDec, true, \ | |
| 1229 "Use INC, DEC instructions on x86") \ | |
| 1230 \ | |
| 219 | 1231 product(bool, UseNewLongLShift, false, \ |
| 1232 "Use optimized bitwise shift left") \ | |
| 1233 \ | |
| 0 | 1234 product(bool, UseStoreImmI16, true, \ |
| 1235 "Use store immediate 16-bits value instruction on x86") \ | |
| 1236 \ | |
| 1237 product(bool, UseAddressNop, false, \ | |
| 1238 "Use '0F 1F [addr]' NOP instructions on x86 cpus") \ | |
| 1239 \ | |
| 1240 product(bool, UseXmmLoadAndClearUpper, true, \ | |
| 1241 "Load low part of XMM register and clear upper part") \ | |
| 1242 \ | |
| 1243 product(bool, UseXmmRegToRegMoveAll, false, \ | |
| 1244 "Copy all XMM register bits when moving value between registers") \ | |
| 1245 \ | |
| 71 | 1246 product(bool, UseXmmI2D, false, \ |
| 1247 "Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \ | |
| 1248 \ | |
| 1249 product(bool, UseXmmI2F, false, \ | |
| 1250 "Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \ | |
| 1251 \ | |
| 405 | 1252 product(bool, UseXMMForArrayCopy, false, \ |
| 1253 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
| 1254 \ | |
| 1255 product(bool, UseUnalignedLoadStores, false, \ | |
| 1256 "Use SSE2 MOVDQU instruction for Arraycopy") \ | |
| 1257 \ | |
| 3839 | 1258 product(bool, UseCBCond, false, \ |
| 1259 "Use compare and branch instruction on SPARC") \ | |
| 1260 \ | |
| 0 | 1261 product(intx, FieldsAllocationStyle, 1, \ |
|
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1262 "0 - type based with oops first, 1 - with oops last, " \ |
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1263 "2 - oops in super and sub classes are together") \ |
| 0 | 1264 \ |
| 1265 product(bool, CompactFields, true, \ | |
| 1266 "Allocate nonstatic fields in gaps between previous fields") \ | |
| 1267 \ | |
| 1268 notproduct(bool, PrintCompactFieldsSavings, false, \ | |
| 1269 "Print how many words were saved with CompactFields") \ | |
| 1270 \ | |
| 1271 product(bool, UseBiasedLocking, true, \ | |
| 1272 "Enable biased locking in JVM") \ | |
| 1273 \ | |
| 1274 product(intx, BiasedLockingStartupDelay, 4000, \ | |
| 1275 "Number of milliseconds to wait before enabling biased locking") \ | |
| 1276 \ | |
| 1277 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
| 1278 "Print statistics of biased locking in JVM") \ | |
| 1279 \ | |
| 1280 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
| 1281 "Threshold of number of revocations per type to try to " \ | |
| 1282 "rebias all objects in the heap of that type") \ | |
| 1283 \ | |
| 1284 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
| 1285 "Threshold of number of revocations per type to permanently " \ | |
| 1286 "revoke biases of all objects in the heap of that type") \ | |
| 1287 \ | |
| 1288 product(intx, BiasedLockingDecayTime, 25000, \ | |
| 1289 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
| 1290 "type after previous bulk rebias") \ | |
| 1291 \ | |
|
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1292 develop(bool, JavaObjectsInPerm, false, \ |
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1293 "controls whether Classes and interned Strings are allocated" \ |
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1294 "in perm. This purely intended to allow debugging issues" \ |
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1295 "in production.") \ |
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1296 \ |
| 0 | 1297 /* tracing */ \ |
| 1298 \ | |
| 1299 notproduct(bool, TraceRuntimeCalls, false, \ | |
| 1300 "Trace run-time calls") \ | |
| 1301 \ | |
| 1302 develop(bool, TraceJNICalls, false, \ | |
| 1303 "Trace JNI calls") \ | |
| 1304 \ | |
| 1305 notproduct(bool, TraceJVMCalls, false, \ | |
| 1306 "Trace JVM calls") \ | |
| 1307 \ | |
|
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1308 product(ccstr, TraceJVMTI, NULL, \ |
| 0 | 1309 "Trace flags for JVMTI functions and events") \ |
| 1310 \ | |
| 1311 /* This option can change an EMCP method into an obsolete method. */ \ | |
| 1312 /* This can affect tests that except specific methods to be EMCP. */ \ | |
| 1313 /* This option should be used with caution. */ \ | |
| 1314 product(bool, StressLdcRewrite, false, \ | |
| 1315 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
| 1316 \ | |
| 1317 product(intx, TraceRedefineClasses, 0, \ | |
| 1318 "Trace level for JVMTI RedefineClasses") \ | |
| 1319 \ | |
| 1574 | 1320 develop(bool, StressMethodComparator, false, \ |
| 1321 "run the MethodComparator on all loaded methods") \ | |
| 1322 \ | |
| 0 | 1323 /* change to false by default sometime after Mustang */ \ |
| 1324 product(bool, VerifyMergedCPBytecodes, true, \ | |
| 1325 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
| 1326 \ | |
| 1327 develop(bool, TraceJNIHandleAllocation, false, \ | |
| 1328 "Trace allocation/deallocation of JNI handle blocks") \ | |
| 1329 \ | |
| 1330 develop(bool, TraceThreadEvents, false, \ | |
| 1331 "Trace all thread events") \ | |
| 1332 \ | |
| 1333 develop(bool, TraceBytecodes, false, \ | |
| 1334 "Trace bytecode execution") \ | |
| 1335 \ | |
| 1336 develop(bool, TraceClassInitialization, false, \ | |
| 1337 "Trace class initialization") \ | |
| 1338 \ | |
| 1339 develop(bool, TraceExceptions, false, \ | |
| 1340 "Trace exceptions") \ | |
| 1341 \ | |
| 1342 develop(bool, TraceICs, false, \ | |
| 1343 "Trace inline cache changes") \ | |
| 1344 \ | |
| 1345 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
| 1346 "Trace method invocation counter overflow") \ | |
| 1347 \ | |
| 1348 develop(bool, TraceInlineCacheClearing, false, \ | |
| 1349 "Trace clearing of inline caches in nmethods") \ | |
| 1350 \ | |
| 1351 develop(bool, TraceDependencies, false, \ | |
| 1352 "Trace dependencies") \ | |
| 1353 \ | |
| 1354 develop(bool, VerifyDependencies, trueInDebug, \ | |
| 1355 "Exercise and verify the compilation dependency mechanism") \ | |
| 1356 \ | |
| 1357 develop(bool, TraceNewOopMapGeneration, false, \ | |
| 1358 "Trace OopMapGeneration") \ | |
| 1359 \ | |
| 1360 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
| 1361 "Trace OopMapGeneration: print detailed cell states") \ | |
| 1362 \ | |
| 1363 develop(bool, TimeOopMap, false, \ | |
| 1364 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
| 1365 \ | |
| 1366 develop(bool, TimeOopMap2, false, \ | |
| 1367 "Time calls to GenerateOopMap::compute_map() individually") \ | |
| 1368 \ | |
| 1369 develop(bool, TraceMonitorMismatch, false, \ | |
| 1370 "Trace monitor matching failures during OopMapGeneration") \ | |
| 1371 \ | |
| 1372 develop(bool, TraceOopMapRewrites, false, \ | |
| 1373 "Trace rewritting of method oops during oop map generation") \ | |
| 1374 \ | |
| 1375 develop(bool, TraceSafepoint, false, \ | |
| 1376 "Trace safepoint operations") \ | |
| 1377 \ | |
| 1378 develop(bool, TraceICBuffer, false, \ | |
| 1379 "Trace usage of IC buffer") \ | |
| 1380 \ | |
| 1381 develop(bool, TraceCompiledIC, false, \ | |
| 1382 "Trace changes of compiled IC") \ | |
| 1383 \ | |
| 1384 notproduct(bool, TraceZapDeadLocals, false, \ | |
| 1385 "Trace zapping dead locals") \ | |
| 1386 \ | |
| 1387 develop(bool, TraceStartupTime, false, \ | |
| 1388 "Trace setup time") \ | |
| 1389 \ | |
| 1390 product(ccstr, HPILibPath, NULL, \ | |
| 1391 "Specify alternate path to HPI library") \ | |
| 1392 \ | |
| 1393 develop(bool, TraceProtectionDomainVerification, false, \ | |
| 1394 "Trace protection domain verifcation") \ | |
| 1395 \ | |
| 1396 develop(bool, TraceClearedExceptions, false, \ | |
| 1397 "Prints when an exception is forcibly cleared") \ | |
| 1398 \ | |
| 1399 product(bool, TraceClassResolution, false, \ | |
| 1400 "Trace all constant pool resolutions (for debugging)") \ | |
| 1401 \ | |
| 1402 product(bool, TraceBiasedLocking, false, \ | |
| 1403 "Trace biased locking in JVM") \ | |
| 1404 \ | |
| 1405 product(bool, TraceMonitorInflation, false, \ | |
| 1406 "Trace monitor inflation in JVM") \ | |
| 1407 \ | |
| 1408 /* assembler */ \ | |
| 1409 product(bool, Use486InstrsOnly, false, \ | |
| 1410 "Use 80486 Compliant instruction subset") \ | |
| 1411 \ | |
| 1412 /* gc */ \ | |
| 1413 \ | |
| 1414 product(bool, UseSerialGC, false, \ | |
|
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|
1415 "Use the serial garbage collector") \ |
|
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|
1416 \ |
|
1193
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|
1417 product(bool, UseG1GC, false, \ |
|
342
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|
1418 "Use the Garbage-First garbage collector") \ |
| 0 | 1419 \ |
| 1420 product(bool, UseParallelGC, false, \ | |
| 1421 "Use the Parallel Scavenge garbage collector") \ | |
| 1422 \ | |
| 1423 product(bool, UseParallelOldGC, false, \ | |
| 1424 "Use the Parallel Old garbage collector") \ | |
| 1425 \ | |
| 1426 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
| 1427 "How often should we maximally compact the heap (not allowing " \ | |
| 1428 "any dead space)") \ | |
| 1429 \ | |
| 1430 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
| 1431 "The collection count for the first maximum compaction") \ | |
| 1432 \ | |
| 1433 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
| 1434 "In the Parallel Old garbage collector maximum compaction for " \ | |
| 1435 "a system GC") \ | |
| 1436 \ | |
| 1437 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
| 1438 "The mean used by the par compact dead wood" \ | |
| 1439 "limiter (a number between 0-100).") \ | |
| 1440 \ | |
| 1441 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
| 1442 "The standard deviation used by the par compact dead wood" \ | |
| 1443 "limiter (a number between 0-100).") \ | |
| 1444 \ | |
| 1445 product(uintx, ParallelGCThreads, 0, \ | |
| 1446 "Number of parallel threads parallel gc will use") \ | |
| 1447 \ | |
|
4095
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|
1448 product(bool, UseDynamicNumberOfGCThreads, false, \ |
|
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|
1449 "Dynamically choose the number of parallel threads " \ |
|
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|
1450 "parallel gc will use") \ |
|
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|
1451 \ |
|
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|
1452 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
|
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|
1453 "Force dynamic selection of the number of" \ |
|
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|
1454 "parallel threads parallel gc will use to aid debugging") \ |
|
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|
1455 \ |
|
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|
1456 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
|
bca17e38de00
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|
1457 "Size of heap (bytes) per GC thread used in calculating the " \ |
|
bca17e38de00
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|
1458 "number of GC threads") \ |
|
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|
1459 \ |
|
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|
1460 product(bool, TraceDynamicGCThreads, false, \ |
|
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|
1461 "Trace the dynamic GC thread usage") \ |
|
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|
1462 \ |
|
483
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|
1463 develop(bool, ParallelOldGCSplitALot, false, \ |
|
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|
1464 "Provoke splitting (copying data from a young gen space to" \ |
|
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|
1465 "multiple destination spaces)") \ |
|
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|
1466 \ |
|
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|
1467 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
|
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|
1468 "How often to provoke splitting a young gen space") \ |
| 0 | 1469 \ |
|
375
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|
1470 develop(bool, TraceRegionTasksQueuing, false, \ |
|
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|
1471 "Trace the queuing of the region tasks") \ |
| 0 | 1472 \ |
| 1284 | 1473 product(uintx, ConcGCThreads, 0, \ |
| 1474 "Number of threads concurrent gc will use") \ | |
|
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1475 \ |
| 0 | 1476 product(uintx, YoungPLABSize, 4096, \ |
| 1477 "Size of young gen promotion labs (in HeapWords)") \ | |
| 1478 \ | |
| 1479 product(uintx, OldPLABSize, 1024, \ | |
| 1480 "Size of old gen promotion labs (in HeapWords)") \ | |
| 1481 \ | |
| 1482 product(uintx, GCTaskTimeStampEntries, 200, \ | |
| 1483 "Number of time stamp entries per gc worker thread") \ | |
| 1484 \ | |
| 1485 product(bool, AlwaysTenure, false, \ | |
| 1486 "Always tenure objects in eden. (ParallelGC only)") \ | |
| 1487 \ | |
| 1488 product(bool, NeverTenure, false, \ | |
| 1064 | 1489 "Never tenure objects in eden, May tenure on overflow " \ |
| 1490 "(ParallelGC only)") \ | |
| 0 | 1491 \ |
| 1492 product(bool, ScavengeBeforeFullGC, true, \ | |
| 1064 | 1493 "Scavenge youngest generation before each full GC, " \ |
| 1494 "used with UseParallelGC") \ | |
| 0 | 1495 \ |
| 1496 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
| 1497 "Allow scavenges to occur when to_space contains objects.") \ | |
| 1498 \ | |
| 1499 product(bool, UseConcMarkSweepGC, false, \ | |
| 1500 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
| 1501 \ | |
| 1502 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
| 1503 "A System.gc() request invokes a concurrent collection;" \ | |
| 1504 " (effective only when UseConcMarkSweepGC)") \ | |
| 1505 \ | |
| 1506 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
| 1064 | 1507 "A System.gc() request invokes a concurrent collection and " \ |
| 1508 "also unloads classes during such a concurrent gc cycle " \ | |
| 1509 "(effective only when UseConcMarkSweepGC)") \ | |
| 0 | 1510 \ |
|
1520
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diff
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|
1511 product(bool, GCLockerInvokesConcurrent, false, \ |
|
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diff
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|
1512 "The exit of a JNI CS necessitating a scavenge also" \ |
|
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diff
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|
1513 " kicks off a bkgrd concurrent collection") \ |
|
bb843ebc7c55
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diff
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|
1514 \ |
|
1991
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|
1515 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
|
016a3628c885
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diff
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|
1516 "How much the GC can expand the eden by while the GC locker " \ |
|
016a3628c885
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|
1517 "is active (as a percentage)") \ |
|
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|
1518 \ |
| 0 | 1519 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
| 1520 "Use Adaptive Free Lists in the CMS generation") \ | |
| 1521 \ | |
| 1522 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
| 1523 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
| 1524 \ | |
| 1525 develop(bool, RotateCMSCollectionTypes, false, \ | |
| 1526 "Rotate the CMS collections among concurrent and STW") \ | |
| 1527 \ | |
| 1528 product(bool, UseCMSBestFit, true, \ | |
| 1529 "Use CMS best fit allocation strategy") \ | |
| 1530 \ | |
| 1531 product(bool, UseCMSCollectionPassing, true, \ | |
| 1532 "Use passing of collection from background to foreground") \ | |
| 1533 \ | |
| 1534 product(bool, UseParNewGC, false, \ | |
| 1535 "Use parallel threads in the new generation.") \ | |
| 1536 \ | |
| 1537 product(bool, ParallelGCVerbose, false, \ | |
| 1538 "Verbose output for parallel GC.") \ | |
| 1539 \ | |
| 1540 product(intx, ParallelGCBufferWastePct, 10, \ | |
| 1541 "wasted fraction of parallel allocation buffer.") \ | |
| 1542 \ | |
|
3357
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|
1543 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
|
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|
1544 "Retain parallel allocation buffers across scavenges; " \ |
|
fc2b798ab316
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|
1545 " -- disabled because this currently conflicts with " \ |
|
fc2b798ab316
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|
1546 " parallel card scanning under certain conditions ") \ |
| 0 | 1547 \ |
| 1548 product(intx, TargetPLABWastePct, 10, \ | |
| 1549 "target wasted space in last buffer as pct of overall allocation")\ | |
| 1550 \ | |
| 1551 product(uintx, PLABWeight, 75, \ | |
| 1552 "Percentage (0-100) used to weight the current sample when" \ | |
| 1553 "computing exponentially decaying average for ResizePLAB.") \ | |
| 1554 \ | |
| 1555 product(bool, ResizePLAB, true, \ | |
| 1556 "Dynamically resize (survivor space) promotion labs") \ | |
| 1557 \ | |
| 1558 product(bool, PrintPLAB, false, \ | |
| 1559 "Print (survivor space) promotion labs sizing decisions") \ | |
| 1560 \ | |
| 1561 product(intx, ParGCArrayScanChunk, 50, \ | |
| 1562 "Scan a subset and push remainder, if array is bigger than this") \ | |
| 1563 \ | |
| 695 | 1564 product(bool, ParGCUseLocalOverflow, false, \ |
| 1565 "Instead of a global overflow list, use local overflow stacks") \ | |
| 1566 \ | |
|
679
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|
1567 product(bool, ParGCTrimOverflow, true, \ |
| 695 | 1568 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
|
679
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|
1569 \ |
| 534 | 1570 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
| 1571 "Whether we should simulate work queue overflow in ParNew") \ | |
| 1572 \ | |
| 1573 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
| 1064 | 1574 "An `interval' counter that determines how frequently " \ |
| 1575 "we simulate overflow; a smaller number increases frequency") \ | |
| 534 | 1576 \ |
| 1577 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
| 0 | 1578 "The desired number of objects to claim from the overflow list") \ |
| 1579 \ | |
|
4728
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|
1580 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
|
3357
fc2b798ab316
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|
1581 "The number of strides per worker thread that we divide up the " \ |
|
fc2b798ab316
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|
1582 "card table scanning work into") \ |
|
fc2b798ab316
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|
1583 \ |
|
fc2b798ab316
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|
1584 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
|
fc2b798ab316
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|
1585 "The number of cards in each chunk of the parallel chunks used " \ |
|
fc2b798ab316
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changeset
|
1586 "during card table scanning") \ |
|
fc2b798ab316
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|
1587 \ |
|
fc2b798ab316
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|
1588 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
| 0 | 1589 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
| 1590 "parallel GC.") \ | |
| 1591 \ | |
|
1145
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1592 product(uintx, OldPLABWeight, 50, \ |
|
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|
1593 "Percentage (0-100) used to weight the current sample when" \ |
|
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|
1594 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
|
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|
1595 \ |
|
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|
1596 product(bool, ResizeOldPLAB, true, \ |
|
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|
1597 "Dynamically resize (old gen) promotion labs") \ |
|
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|
1598 \ |
|
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|
1599 product(bool, PrintOldPLAB, false, \ |
|
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|
1600 "Print (old gen) promotion labs sizing decisions") \ |
|
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|
1601 \ |
|
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|
1602 product(uintx, CMSOldPLABMin, 16, \ |
|
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|
1603 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
|
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|
1604 \ |
|
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|
1605 product(uintx, CMSOldPLABMax, 1024, \ |
|
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|
1606 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
|
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|
1607 \ |
|
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|
1608 product(uintx, CMSOldPLABNumRefills, 4, \ |
|
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|
1609 "Nominal number of refills of CMS gen promotion lab cache" \ |
|
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|
1610 " per worker per block size") \ |
|
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|
1611 \ |
|
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|
1612 product(bool, CMSOldPLABResizeQuicker, false, \ |
|
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|
1613 "Whether to react on-the-fly during a scavenge to a sudden" \ |
|
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|
1614 " change in block demand rate") \ |
|
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|
1615 \ |
|
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|
1616 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
|
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|
1617 "The tolerance of the phase-change detector for on-the-fly" \ |
|
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1618 " PLAB resizing during a scavenge") \ |
|
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|
1619 \ |
|
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|
1620 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
|
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|
1621 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
|
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|
1622 " during a scavenge") \ |
|
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|
1623 \ |
|
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|
1624 product(uintx, CMSOldPLABReactivityCeiling, 10, \ |
|
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1625 "The clamping of the gain in the feedback loop for on-the-fly" \ |
|
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1626 " PLAB resizing during a scavenge") \ |
|
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|
1627 \ |
| 0 | 1628 product(bool, AlwaysPreTouch, false, \ |
| 1629 "It forces all freshly committed pages to be pre-touched.") \ | |
| 1630 \ | |
|
2368
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1631 product_pd(intx, CMSYoungGenPerWorker, \ |
|
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1632 "The maximum size of young gen chosen by default per GC worker " \ |
| 1064 | 1633 "thread available") \ |
| 0 | 1634 \ |
|
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1635 product(bool, GCOverheadReporting, false, \ |
|
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1636 "Enables the GC overhead reporting facility") \ |
|
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|
1637 \ |
|
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1638 product(intx, GCOverheadReportingPeriodMS, 100, \ |
|
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1639 "Reporting period for conc GC overhead reporting, in ms ") \ |
|
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|
1640 \ |
| 0 | 1641 product(bool, CMSIncrementalMode, false, \ |
| 1642 "Whether CMS GC should operate in \"incremental\" mode") \ | |
| 1643 \ | |
| 1644 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
| 1645 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
| 1646 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
| 1647 "value") \ | |
| 1648 \ | |
| 1649 product(bool, CMSIncrementalPacing, true, \ | |
| 1650 "Whether the CMS incremental mode duty cycle should be " \ | |
| 1651 "automatically adjusted") \ | |
| 1652 \ | |
| 1653 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
| 1064 | 1654 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
| 1655 "enabled (a percentage, 0-100)") \ | |
| 0 | 1656 \ |
| 1657 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
| 1064 | 1658 "Percentage (0-100) used to add conservatism when computing the " \ |
| 1659 "duty cycle") \ | |
| 0 | 1660 \ |
| 1661 product(uintx, CMSIncrementalOffset, 0, \ | |
| 1662 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
| 1064 | 1663 " is shifted to the right within the period between young GCs") \ |
| 0 | 1664 \ |
|
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|
1665 product(uintx, CMSExpAvgFactor, 50, \ |
|
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|
1666 "Percentage (0-100) used to weight the current sample when" \ |
|
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|
1667 "computing exponential averages for CMS statistics.") \ |
|
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|
1668 \ |
|
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|
1669 product(uintx, CMS_FLSWeight, 75, \ |
|
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|
1670 "Percentage (0-100) used to weight the current sample when" \ |
|
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1671 "computing exponentially decating averages for CMS FLS statistics.") \ |
|
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|
1672 \ |
|
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|
1673 product(uintx, CMS_FLSPadding, 1, \ |
|
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|
1674 "The multiple of deviation from mean to use for buffering" \ |
| 0 | 1675 "against volatility in free list demand.") \ |
| 1676 \ | |
| 1677 product(uintx, FLSCoalescePolicy, 2, \ | |
| 1678 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
| 1679 \ | |
|
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|
1680 product(bool, FLSAlwaysCoalesceLarge, false, \ |
|
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1681 "CMS: Larger free blocks are always available for coalescing") \ |
|
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|
1682 \ |
|
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|
1683 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
|
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1684 "CMS: the smaller the percentage the greater the coalition force")\ |
|
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|
1685 \ |
|
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|
1686 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
|
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|
1687 "CMS: the factor by which to inflate estimated demand of small" \ |
|
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1688 " block sizes to prevent coalescing with an adjoining block") \ |
|
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|
1689 \ |
|
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|
1690 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
|
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1691 "CMS: the factor by which to inflate estimated demand of large" \ |
|
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|
1692 " block sizes to prevent coalescing with an adjoining block") \ |
|
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|
1693 \ |
|
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|
1694 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
|
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|
1695 "CMS: the factor by which to inflate estimated demand of small" \ |
|
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|
1696 " block sizes to prevent splitting to supply demand for smaller" \ |
|
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|
1697 " blocks") \ |
|
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|
1698 \ |
|
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|
1699 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
|
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1700 "CMS: the factor by which to inflate estimated demand of large" \ |
|
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1701 " block sizes to prevent splitting to supply demand for smaller" \ |
|
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|
1702 " blocks") \ |
|
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|
1703 \ |
|
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1704 product(bool, CMSExtrapolateSweep, false, \ |
|
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1705 "CMS: cushion for block demand during sweep") \ |
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1706 \ |
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1707 product(uintx, CMS_SweepWeight, 75, \ |
| 1064 | 1708 "Percentage (0-100) used to weight the current sample when " \ |
| 1709 "computing exponentially decaying average for inter-sweep " \ | |
| 1710 "duration") \ | |
| 0 | 1711 \ |
|
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1712 product(uintx, CMS_SweepPadding, 1, \ |
| 1064 | 1713 "The multiple of deviation from mean to use for buffering " \ |
| 0 | 1714 "against volatility in inter-sweep duration.") \ |
| 1715 \ | |
| 1716 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
| 1717 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
| 1064 | 1718 "duration exceeds this threhold in milliseconds") \ |
| 0 | 1719 \ |
| 1720 develop(bool, CMSTraceIncrementalMode, false, \ | |
| 1721 "Trace CMS incremental mode") \ | |
| 1722 \ | |
| 1723 develop(bool, CMSTraceIncrementalPacing, false, \ | |
| 1724 "Trace CMS incremental mode pacing computation") \ | |
| 1725 \ | |
| 1726 develop(bool, CMSTraceThreadState, false, \ | |
| 1727 "Trace the CMS thread state (enable the trace_state() method)") \ | |
| 1728 \ | |
| 1729 product(bool, CMSClassUnloadingEnabled, false, \ | |
| 1730 "Whether class unloading enabled when using CMS GC") \ | |
| 1731 \ | |
|
94
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|
1732 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
|
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|
1733 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
|
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|
1734 " for which classes may not be unloaded") \ |
|
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|
1735 \ |
| 0 | 1736 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
| 1737 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
| 1738 \ | |
| 1739 product(bool, UseCMSCompactAtFullCollection, true, \ | |
| 1740 "Use mark sweep compact at full collections") \ | |
| 1741 \ | |
| 1742 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
| 1743 "Number of CMS full collection done before compaction if > 0") \ | |
| 1744 \ | |
| 1745 develop(intx, CMSDictionaryChoice, 0, \ | |
| 1746 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
| 1747 \ | |
| 1748 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
|
1777
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|
1749 "Replenish an indexed free list with this number of chunks") \ |
| 0 | 1750 \ |
|
1145
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1751 product(bool, CMSReplenishIntermediate, true, \ |
|
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1752 "Replenish all intermediate free-list caches") \ |
|
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|
1753 \ |
|
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1754 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
|
1777
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|
1755 "When satisfying batched demand, split blocks from the " \ |
|
1145
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1756 "IndexedFreeList whose size is a multiple of requested size") \ |
|
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|
1757 \ |
| 0 | 1758 product(bool, CMSLoopWarn, false, \ |
| 1759 "Warn in case of excessive CMS looping") \ | |
| 1760 \ | |
| 1761 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
| 1762 "Whether preserved marks should be restored early") \ | |
| 1763 \ | |
| 1284 | 1764 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
| 1765 "Size of marking stack") \ | |
| 1766 \ | |
| 1767 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
| 1768 "Max size of marking stack") \ | |
| 0 | 1769 \ |
| 1770 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
| 1771 "Whether we should simulate frequent marking stack / work queue" \ | |
| 1772 " overflow") \ | |
| 1773 \ | |
| 534 | 1774 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
| 1775 "An `interval' counter that determines how frequently" \ | |
| 0 | 1776 " we simulate overflow; a smaller number increases frequency") \ |
| 1777 \ | |
| 1778 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
| 1779 "(Temporary, subject to experimentation)" \ | |
| 1780 "Maximum number of abortable preclean iterations, if > 0") \ | |
| 1781 \ | |
| 1782 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
| 1783 "(Temporary, subject to experimentation)" \ | |
| 1784 "Maximum time in abortable preclean in ms") \ | |
| 1785 \ | |
| 1786 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
| 1787 "(Temporary, subject to experimentation)" \ | |
| 1788 "Nominal minimum work per abortable preclean iteration") \ | |
| 1789 \ | |
|
1887
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1790 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
| 0 | 1791 "(Temporary, subject to experimentation)" \ |
| 1792 " Time that we sleep between iterations when not given" \ | |
| 1793 " enough work per iteration") \ | |
| 1794 \ | |
| 1795 product(uintx, CMSRescanMultiple, 32, \ | |
| 1796 "Size (in cards) of CMS parallel rescan task") \ | |
| 1797 \ | |
| 1798 product(uintx, CMSConcMarkMultiple, 32, \ | |
| 1799 "Size (in cards) of CMS concurrent MT marking task") \ | |
| 1800 \ | |
| 1801 product(uintx, CMSRevisitStackSize, 1*M, \ | |
| 1802 "Size of CMS KlassKlass revisit stack") \ | |
| 1803 \ | |
| 1804 product(bool, CMSAbortSemantics, false, \ | |
| 1805 "Whether abort-on-overflow semantics is implemented") \ | |
| 1806 \ | |
| 1807 product(bool, CMSParallelRemarkEnabled, true, \ | |
| 1808 "Whether parallel remark enabled (only if ParNewGC)") \ | |
| 1809 \ | |
| 1810 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
| 1811 "Whether parallel remark of survivor space" \ | |
| 1812 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
| 1813 \ | |
| 1814 product(bool, CMSPLABRecordAlways, true, \ | |
| 1815 "Whether to always record survivor space PLAB bdries" \ | |
| 1816 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
| 1817 \ | |
| 1818 product(bool, CMSConcurrentMTEnabled, true, \ | |
| 1819 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
| 1820 \ | |
| 1821 product(bool, CMSPermGenPrecleaningEnabled, true, \ | |
| 1822 "Whether concurrent precleaning enabled in perm gen" \ | |
| 1823 " (effective only when CMSPrecleaningEnabled is true)") \ | |
| 1824 \ | |
| 1825 product(bool, CMSPrecleaningEnabled, true, \ | |
| 1826 "Whether concurrent precleaning enabled") \ | |
| 1827 \ | |
| 1828 product(uintx, CMSPrecleanIter, 3, \ | |
| 1829 "Maximum number of precleaning iteration passes") \ | |
| 1830 \ | |
| 1831 product(uintx, CMSPrecleanNumerator, 2, \ | |
| 1832 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
| 1833 " ratio") \ | |
| 1834 \ | |
| 1835 product(uintx, CMSPrecleanDenominator, 3, \ | |
| 1836 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
| 1837 " ratio") \ | |
| 1838 \ | |
|
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1839 product(bool, CMSPrecleanRefLists1, true, \ |
| 0 | 1840 "Preclean ref lists during (initial) preclean phase") \ |
| 1841 \ | |
| 1842 product(bool, CMSPrecleanRefLists2, false, \ | |
| 1843 "Preclean ref lists during abortable preclean phase") \ | |
| 1844 \ | |
| 1845 product(bool, CMSPrecleanSurvivors1, false, \ | |
| 1846 "Preclean survivors during (initial) preclean phase") \ | |
| 1847 \ | |
| 1848 product(bool, CMSPrecleanSurvivors2, true, \ | |
| 1849 "Preclean survivors during abortable preclean phase") \ | |
| 1850 \ | |
| 1851 product(uintx, CMSPrecleanThreshold, 1000, \ | |
| 1852 "Don't re-iterate if #dirty cards less than this") \ | |
| 1853 \ | |
| 1854 product(bool, CMSCleanOnEnter, true, \ | |
| 1855 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
| 1856 \ | |
| 1857 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
| 1858 "Choose variant (1,2) of verification following remark") \ | |
| 1859 \ | |
| 1860 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
| 1861 "If Eden used is below this value, don't try to schedule remark") \ | |
| 1862 \ | |
| 1863 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
| 1864 "The Eden occupancy % at which to try and schedule remark pause") \ | |
| 1865 \ | |
| 1866 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
| 1867 "Start sampling Eden top at least before yg occupancy reaches" \ | |
| 1868 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
| 1869 \ | |
| 1870 product(uintx, CMSSamplingGrain, 16*K, \ | |
| 1871 "The minimum distance between eden samples for CMS (see above)") \ | |
| 1872 \ | |
| 1873 product(bool, CMSScavengeBeforeRemark, false, \ | |
| 1874 "Attempt scavenge before the CMS remark step") \ | |
| 1875 \ | |
| 1876 develop(bool, CMSTraceSweeper, false, \ | |
| 1877 "Trace some actions of the CMS sweeper") \ | |
| 1878 \ | |
| 1879 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
| 1880 "Don't drain below this size per parallel worker/thief") \ | |
| 1881 \ | |
|
1887
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1882 manageable(intx, CMSWaitDuration, 2000, \ |
| 0 | 1883 "Time in milliseconds that CMS thread waits for young GC") \ |
| 1884 \ | |
| 1885 product(bool, CMSYield, true, \ | |
| 1886 "Yield between steps of concurrent mark & sweep") \ | |
| 1887 \ | |
| 1888 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
| 1889 "Bitmap operations should process at most this many bits" \ | |
| 1890 "between yields") \ | |
| 1891 \ | |
|
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1892 product(bool, CMSDumpAtPromotionFailure, false, \ |
|
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1893 "Dump useful information about the state of the CMS old " \ |
|
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|
1894 " generation upon a promotion failure.") \ |
|
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|
1895 \ |
|
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|
1896 product(bool, CMSPrintChunksInDump, false, \ |
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1897 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1898 " more detailed information about the free chunks.") \ |
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1899 \ |
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1900 product(bool, CMSPrintObjectsInDump, false, \ |
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1901 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1902 " more detailed information about the allocated objects.") \ |
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1903 \ |
| 0 | 1904 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
| 1905 "Verify that all refs across the FLS boundary " \ | |
| 1906 " are to valid objects") \ | |
| 1907 \ | |
| 1908 diagnostic(bool, FLSVerifyLists, false, \ | |
| 1909 "Do lots of (expensive) FreeListSpace verification") \ | |
| 1910 \ | |
| 1911 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
| 1912 "Do lots of (expensive) FLS index table verification") \ | |
| 1913 \ | |
| 1914 develop(bool, FLSVerifyDictionary, false, \ | |
| 1915 "Do lots of (expensive) FLS dictionary verification") \ | |
| 1916 \ | |
| 1917 develop(bool, VerifyBlockOffsetArray, false, \ | |
| 1918 "Do (expensive!) block offset array verification") \ | |
| 1919 \ | |
|
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1920 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
| 0 | 1921 "Maintain _unallocated_block in BlockOffsetArray" \ |
| 1922 " (currently applicable only to CMS collector)") \ | |
| 1923 \ | |
| 1924 develop(bool, TraceCMSState, false, \ | |
| 1925 "Trace the state of the CMS collection") \ | |
| 1926 \ | |
| 1927 product(intx, RefDiscoveryPolicy, 0, \ | |
| 1928 "Whether reference-based(0) or referent-based(1)") \ | |
| 1929 \ | |
| 1930 product(bool, ParallelRefProcEnabled, false, \ | |
| 1931 "Enable parallel reference processing whenever possible") \ | |
| 1932 \ | |
| 1933 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
| 1934 "Enable balancing of reference processing queues") \ | |
| 1935 \ | |
| 1936 product(intx, CMSTriggerRatio, 80, \ | |
| 1937 "Percentage of MinHeapFreeRatio in CMS generation that is " \ | |
| 1064 | 1938 "allocated before a CMS collection cycle commences") \ |
| 0 | 1939 \ |
|
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1940 product(intx, CMSTriggerPermRatio, 80, \ |
| 1064 | 1941 "Percentage of MinHeapFreeRatio in the CMS perm generation that " \ |
| 1942 "is allocated before a CMS collection cycle commences, that " \ | |
| 1943 "also collects the perm generation") \ | |
|
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1944 \ |
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1945 product(uintx, CMSBootstrapOccupancy, 50, \ |
| 0 | 1946 "Percentage CMS generation occupancy at which to " \ |
| 1064 | 1947 "initiate CMS collection for bootstrapping collection stats") \ |
| 0 | 1948 \ |
| 1949 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
| 1950 "Percentage CMS generation occupancy to start a CMS collection " \ | |
| 1064 | 1951 "cycle. A negative value means that CMSTriggerRatio is used") \ |
|
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1952 \ |
|
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1953 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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1954 "Percentage of the (entire) heap occupancy to start a " \ |
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1955 "concurrent GC cycle. It us used by GCs that trigger a " \ |
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1956 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1957 "not just one of the generations (e.g., G1). A value of 0 " \ |
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1958 "denotes 'do constant GC cycles'.") \ |
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1959 \ |
|
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1960 product(intx, CMSInitiatingPermOccupancyFraction, -1, \ |
| 1064 | 1961 "Percentage CMS perm generation occupancy to start a " \ |
| 1962 "CMScollection cycle. A negative value means that " \ | |
| 1963 "CMSTriggerPermRatio is used") \ | |
| 0 | 1964 \ |
| 1965 product(bool, UseCMSInitiatingOccupancyOnly, false, \ | |
| 1966 "Only use occupancy as a crierion for starting a CMS collection") \ | |
| 1967 \ | |
|
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1968 product(intx, CMSIsTooFullPercentage, 98, \ |
| 1064 | 1969 "An absolute ceiling above which CMS will always consider the " \ |
| 1970 "perm gen ripe for collection") \ | |
|
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1971 \ |
| 0 | 1972 develop(bool, CMSTestInFreeList, false, \ |
| 1973 "Check if the coalesced range is already in the " \ | |
| 1064 | 1974 "free lists as claimed") \ |
| 0 | 1975 \ |
| 1976 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
| 1977 "Check that all the garbage collected was returned to the " \ | |
| 1978 "free lists.") \ | |
| 1979 \ | |
| 1980 notproduct(bool, ScavengeALot, false, \ | |
| 1981 "Force scavenge at every Nth exit from the runtime system " \ | |
| 1982 "(N=ScavengeALotInterval)") \ | |
| 1983 \ | |
| 1984 develop(bool, FullGCALot, false, \ | |
| 1985 "Force full gc at every Nth exit from the runtime system " \ | |
| 1986 "(N=FullGCALotInterval)") \ | |
| 1987 \ | |
| 1988 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
| 1989 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
| 1990 \ | |
|
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1991 product(bool, PrintPromotionFailure, false, \ |
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1992 "Print additional diagnostic information following " \ |
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1993 " promotion failure") \ |
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1994 \ |
| 0 | 1995 notproduct(bool, PromotionFailureALot, false, \ |
| 1996 "Use promotion failure handling on every youngest generation " \ | |
| 1997 "collection") \ | |
| 1998 \ | |
| 1999 develop(uintx, PromotionFailureALotCount, 1000, \ | |
| 2000 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
| 2001 "refill attempts (ParNew) or promotion attempts " \ | |
| 2002 "(other young collectors) ") \ | |
| 2003 \ | |
| 2004 develop(uintx, PromotionFailureALotInterval, 5, \ | |
| 2005 "Total collections between promotion failures alot") \ | |
| 2006 \ | |
|
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2007 experimental(intx, WorkStealingSleepMillis, 1, \ |
| 0 | 2008 "Sleep time when sleep is used for yields") \ |
| 2009 \ | |
| 2430 | 2010 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
| 0 | 2011 "Number of yields before a sleep is done during workstealing") \ |
| 2012 \ | |
|
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2013 experimental(uintx, WorkStealingHardSpins, 4096, \ |
|
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2014 "Number of iterations in a spin loop between checks on " \ |
|
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2015 "time out of hard spin") \ |
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2016 \ |
|
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2017 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
|
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2018 "Ratio of hard spins to calls to yield") \ |
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2019 \ |
| 534 | 2020 product(uintx, PreserveMarkStackSize, 1024, \ |
| 1064 | 2021 "Size for stack used in promotion failure handling") \ |
| 0 | 2022 \ |
|
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2023 develop(uintx, ObjArrayMarkingStride, 512, \ |
|
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2024 "Number of ObjArray elements to push onto the marking stack" \ |
|
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2025 "before pushing a continuation entry") \ |
|
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|
2026 \ |
| 3779 | 2027 notproduct(bool, ExecuteInternalVMTests, false, \ |
| 2028 "Enable execution of internal VM tests.") \ | |
| 2029 \ | |
| 0 | 2030 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
| 2031 \ | |
| 2032 product_pd(bool, ResizeTLAB, \ | |
| 2033 "Dynamically resize tlab size for threads") \ | |
| 2034 \ | |
| 2035 product(bool, ZeroTLAB, false, \ | |
| 2036 "Zero out the newly created TLAB") \ | |
| 2037 \ | |
|
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2038 product(bool, FastTLABRefill, true, \ |
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2039 "Use fast TLAB refill code") \ |
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|
2040 \ |
| 0 | 2041 product(bool, PrintTLAB, false, \ |
| 2042 "Print various TLAB related information") \ | |
| 2043 \ | |
| 2044 product(bool, TLABStats, true, \ | |
| 2045 "Print various TLAB related information") \ | |
| 2046 \ | |
| 3892 | 2047 product(bool, UseBlockZeroing, false, \ |
| 2048 "Use special cpu instructions for block zeroing") \ | |
| 2049 \ | |
| 2050 product(intx, BlockZeroingLowLimit, 2048, \ | |
| 2051 "Minimum size in bytes when block zeroing will be used") \ | |
| 2052 \ | |
| 3903 | 2053 product(bool, UseBlockCopy, false, \ |
| 2054 "Use special cpu instructions for block copy") \ | |
| 2055 \ | |
| 2056 product(intx, BlockCopyLowLimit, 2048, \ | |
| 2057 "Minimum size in bytes when block copy will be used") \ | |
| 2058 \ | |
| 941 | 2059 product(bool, PrintRevisitStats, false, \ |
| 2060 "Print revisit (klass and MDO) stack related information") \ | |
| 2061 \ | |
|
2192
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2062 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
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2063 "Enable LowMemoryProtection")) \ |
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|
2064 \ |
| 0 | 2065 product_pd(bool, NeverActAsServerClassMachine, \ |
| 2066 "Never act like a server-class machine") \ | |
| 2067 \ | |
| 2068 product(bool, AlwaysActAsServerClassMachine, false, \ | |
| 2069 "Always act like a server-class machine") \ | |
| 2070 \ | |
| 1064 | 2071 product_pd(uint64_t, MaxRAM, \ |
| 2072 "Real memory size (in bytes) used to set maximum heap size") \ | |
| 2073 \ | |
| 2074 product(uintx, ErgoHeapSizeLimit, 0, \ | |
| 2075 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
| 2076 "MaxRAM / MaxRAMFraction") \ | |
| 2077 \ | |
| 2078 product(uintx, MaxRAMFraction, 4, \ | |
| 2079 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
| 2080 "size") \ | |
| 0 | 2081 \ |
| 2082 product(uintx, DefaultMaxRAMFraction, 4, \ | |
| 1064 | 2083 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
| 2084 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
| 2085 \ | |
| 2086 product(uintx, MinRAMFraction, 2, \ | |
| 2087 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
| 2088 "size on systems with small physical memory size") \ | |
| 2089 \ | |
| 2090 product(uintx, InitialRAMFraction, 64, \ | |
| 2091 "Fraction (1/n) of real memory used for initial heap size") \ | |
| 0 | 2092 \ |
| 2093 product(bool, UseAutoGCSelectPolicy, false, \ | |
| 2094 "Use automatic collection selection policy") \ | |
| 2095 \ | |
| 2096 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
| 2097 "Automatic GC selection pause threshhold in ms") \ | |
| 2098 \ | |
| 2099 product(bool, UseAdaptiveSizePolicy, true, \ | |
| 2100 "Use adaptive generation sizing policies") \ | |
| 2101 \ | |
| 2102 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
| 2103 "Use adaptive survivor sizing policies") \ | |
| 2104 \ | |
| 2105 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
| 2106 "Use adaptive young-old sizing policies at minor collections") \ | |
| 2107 \ | |
| 2108 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
| 2109 "Use adaptive young-old sizing policies at major collections") \ | |
| 2110 \ | |
| 2111 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
| 2112 "Use statistics from System.GC for adaptive size policy") \ | |
| 2113 \ | |
| 2114 product(bool, UseAdaptiveGCBoundary, false, \ | |
| 2115 "Allow young-old boundary to move") \ | |
| 2116 \ | |
| 2117 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
| 2118 "Trace young-old boundary moves") \ | |
| 2119 \ | |
| 2120 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
| 2121 "Resize the virtual spaces of the young or old generations") \ | |
| 2122 \ | |
| 2123 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
| 2124 "Policy for changeing generation size for throughput goals") \ | |
| 2125 \ | |
| 2126 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
| 2127 "Policy for changing generation size for pause goals") \ | |
| 2128 \ | |
| 2129 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
| 2130 "Adjust tenured generation to achive a minor pause goal") \ | |
| 2131 \ | |
| 2132 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
| 2133 "Adjust young generation to achive a major pause goal") \ | |
| 2134 \ | |
| 2135 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
| 2136 "Number of steps where heuristics is used before data is used") \ | |
| 2137 \ | |
| 2138 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
| 2139 "Number of collections before the adaptive sizing is started") \ | |
| 2140 \ | |
| 2141 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
| 1064 | 2142 "Collecton interval for printing information; zero => never") \ |
| 0 | 2143 \ |
| 2144 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
| 2145 "Use adaptive minimum footprint as a goal") \ | |
| 2146 \ | |
| 2147 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
| 2148 "Weight given to exponential resizing, between 0 and 100") \ | |
| 2149 \ | |
| 2150 product(uintx, AdaptiveTimeWeight, 25, \ | |
| 2151 "Weight given to time in adaptive policy, between 0 and 100") \ | |
| 2152 \ | |
| 2153 product(uintx, PausePadding, 1, \ | |
| 2154 "How much buffer to keep for pause time") \ | |
| 2155 \ | |
| 2156 product(uintx, PromotedPadding, 3, \ | |
| 2157 "How much buffer to keep for promotion failure") \ | |
| 2158 \ | |
| 2159 product(uintx, SurvivorPadding, 3, \ | |
| 2160 "How much buffer to keep for survivor overflow") \ | |
| 2161 \ | |
| 2162 product(uintx, AdaptivePermSizeWeight, 20, \ | |
| 2163 "Weight for perm gen exponential resizing, between 0 and 100") \ | |
| 2164 \ | |
| 2165 product(uintx, PermGenPadding, 3, \ | |
| 2166 "How much buffer to keep for perm gen sizing") \ | |
| 2167 \ | |
| 2168 product(uintx, ThresholdTolerance, 10, \ | |
| 2169 "Allowed collection cost difference between generations") \ | |
| 2170 \ | |
| 2171 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
| 1064 | 2172 "If collection costs are within margin, reduce both by full " \ |
| 2173 "delta") \ | |
| 0 | 2174 \ |
| 2175 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
| 2176 "Adaptive size percentage change in young generation") \ | |
| 2177 \ | |
| 2178 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
| 2179 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
| 2180 \ | |
| 2181 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
| 2182 "Decay factor to YoungedGenerationSizeSupplement") \ | |
| 2183 \ | |
| 2184 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
| 2185 "Adaptive size percentage change in tenured generation") \ | |
| 2186 \ | |
| 2187 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
| 2188 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
| 2189 \ | |
| 2190 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
| 2191 "Decay factor to TenuredGenerationSizeIncrement") \ | |
| 2192 \ | |
| 1783 | 2193 product(uintx, MaxGCPauseMillis, max_uintx, \ |
| 751 | 2194 "Adaptive size policy maximum GC pause time goal in msec, " \ |
| 2195 "or (G1 Only) the max. GC time per MMU time slice") \ | |
| 2196 \ | |
|
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2197 product(uintx, GCPauseIntervalMillis, 0, \ |
| 751 | 2198 "Time slice for MMU specification") \ |
| 0 | 2199 \ |
| 2200 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
| 2201 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
| 2202 \ | |
| 2203 product(uintx, GCTimeRatio, 99, \ | |
| 2204 "Adaptive size policy application time to GC time ratio") \ | |
| 2205 \ | |
| 2206 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
| 2207 "Adaptive size scale down factor for shrinking") \ | |
| 2208 \ | |
| 2209 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
| 2210 "Adaptive size decays the major cost for long major intervals") \ | |
| 2211 \ | |
| 2212 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
| 2213 "Time scale over which major costs decay") \ | |
| 2214 \ | |
| 2215 product(uintx, MinSurvivorRatio, 3, \ | |
| 2216 "Minimum ratio of young generation/survivor space size") \ | |
| 2217 \ | |
| 2218 product(uintx, InitialSurvivorRatio, 8, \ | |
| 2219 "Initial ratio of eden/survivor space size") \ | |
| 2220 \ | |
| 2221 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
| 2222 "Estimate of footprint other than Java Heap") \ | |
| 2223 \ | |
| 2224 product(bool, UseGCOverheadLimit, true, \ | |
| 2225 "Use policy to limit of proportion of time spent in GC " \ | |
| 2226 "before an OutOfMemory error is thrown") \ | |
| 2227 \ | |
| 2228 product(uintx, GCTimeLimit, 98, \ | |
| 2229 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
| 2230 "error is thrown (used with GCHeapFreeLimit)") \ | |
| 2231 \ | |
| 2232 product(uintx, GCHeapFreeLimit, 2, \ | |
| 2233 "Minimum percentage of free space after a full GC before an " \ | |
| 2234 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
| 2235 \ | |
| 2236 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
| 2237 "Number of consecutive collections before gc time limit fires") \ | |
| 2238 \ | |
| 2239 product(bool, PrintAdaptiveSizePolicy, false, \ | |
| 2240 "Print information about AdaptiveSizePolicy") \ | |
| 2241 \ | |
| 2242 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
| 2243 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
| 2244 \ | |
| 2245 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
| 2246 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
| 2247 \ | |
| 2248 product(intx, PrefetchFieldsAhead, -1, \ | |
| 2249 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
| 2250 \ | |
| 2251 develop(bool, UsePrefetchQueue, true, \ | |
| 2252 "Use the prefetch queue during PS promotion") \ | |
| 2253 \ | |
| 2254 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ | |
| 2255 "Verify system before exiting") \ | |
| 2256 \ | |
| 2257 diagnostic(bool, VerifyBeforeGC, false, \ | |
| 2258 "Verify memory system before GC") \ | |
| 2259 \ | |
| 2260 diagnostic(bool, VerifyAfterGC, false, \ | |
| 2261 "Verify memory system after GC") \ | |
| 2262 \ | |
| 2263 diagnostic(bool, VerifyDuringGC, false, \ | |
| 2264 "Verify memory system during GC (between phases)") \ | |
| 2265 \ | |
| 390 | 2266 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
| 2267 "Enable parallel memory system verification") \ | |
| 2268 \ | |
| 1166 | 2269 diagnostic(bool, DeferInitialCardMark, false, \ |
| 2270 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
| 2271 "may arise from new_pre_store_barrier") \ | |
| 2272 \ | |
| 0 | 2273 diagnostic(bool, VerifyRememberedSets, false, \ |
| 2274 "Verify GC remembered sets") \ | |
| 2275 \ | |
| 2276 diagnostic(bool, VerifyObjectStartArray, true, \ | |
| 2277 "Verify GC object start array if verify before/after") \ | |
| 2278 \ | |
| 2279 product(bool, DisableExplicitGC, false, \ | |
| 2280 "Tells whether calling System.gc() does a full GC") \ | |
| 2281 \ | |
| 2282 notproduct(bool, CheckMemoryInitialization, false, \ | |
| 2283 "Checks memory initialization") \ | |
| 2284 \ | |
| 2285 product(bool, CollectGen0First, false, \ | |
| 2286 "Collect youngest generation before each full GC") \ | |
| 2287 \ | |
| 2288 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
| 2289 "Bind CMS Thread to CPU if possible") \ | |
| 2290 \ | |
| 2291 diagnostic(uintx, CPUForCMSThread, 0, \ | |
| 2292 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
| 2293 \ | |
| 2294 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
| 2295 "Bind GCTaskThreads to CPUs if possible") \ | |
| 2296 \ | |
| 2297 product(bool, UseGCTaskAffinity, false, \ | |
| 2298 "Use worker affinity when asking for GCTasks") \ | |
| 2299 \ | |
| 2300 product(uintx, ProcessDistributionStride, 4, \ | |
| 2301 "Stride through processors when distributing processes") \ | |
| 2302 \ | |
| 2303 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
| 2304 "number of times the coordinator GC thread will sleep while " \ | |
| 2305 "yielding before giving up and resuming GC") \ | |
| 2306 \ | |
| 2307 product(uintx, CMSYieldSleepCount, 0, \ | |
| 2308 "number of times a GC thread (minus the coordinator) " \ | |
| 2309 "will sleep while yielding before giving up and resuming GC") \ | |
| 2310 \ | |
| 2311 /* gc tracing */ \ | |
| 2312 manageable(bool, PrintGC, false, \ | |
| 2313 "Print message at garbage collect") \ | |
| 2314 \ | |
| 2315 manageable(bool, PrintGCDetails, false, \ | |
| 2316 "Print more details at garbage collect") \ | |
| 2317 \ | |
| 2318 manageable(bool, PrintGCDateStamps, false, \ | |
| 2319 "Print date stamps at garbage collect") \ | |
| 2320 \ | |
| 2321 manageable(bool, PrintGCTimeStamps, false, \ | |
| 2322 "Print timestamps at garbage collect") \ | |
| 2323 \ | |
| 2324 product(bool, PrintGCTaskTimeStamps, false, \ | |
| 2325 "Print timestamps for individual gc worker thread tasks") \ | |
| 2326 \ | |
| 2327 develop(intx, ConcGCYieldTimeout, 0, \ | |
| 2328 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
| 2329 \ | |
| 2330 notproduct(bool, TraceMarkSweep, false, \ | |
| 2331 "Trace mark sweep") \ | |
| 2332 \ | |
| 2333 product(bool, PrintReferenceGC, false, \ | |
| 2334 "Print times spent handling reference objects during GC " \ | |
| 2335 " (enabled only when PrintGCDetails)") \ | |
| 2336 \ | |
| 2337 develop(bool, TraceReferenceGC, false, \ | |
| 2338 "Trace handling of soft/weak/final/phantom references") \ | |
| 2339 \ | |
| 2340 develop(bool, TraceFinalizerRegistration, false, \ | |
| 2341 "Trace registration of final references") \ | |
| 2342 \ | |
| 2343 notproduct(bool, TraceScavenge, false, \ | |
| 2344 "Trace scavenge") \ | |
| 2345 \ | |
| 2346 product_rw(bool, TraceClassLoading, false, \ | |
| 2347 "Trace all classes loaded") \ | |
| 2348 \ | |
| 2349 product(bool, TraceClassLoadingPreorder, false, \ | |
| 2350 "Trace all classes loaded in order referenced (not loaded)") \ | |
| 2351 \ | |
| 2352 product_rw(bool, TraceClassUnloading, false, \ | |
| 2353 "Trace unloading of classes") \ | |
| 2354 \ | |
| 2355 product_rw(bool, TraceLoaderConstraints, false, \ | |
| 2356 "Trace loader constraints") \ | |
| 2357 \ | |
| 2358 product(bool, TraceGen0Time, false, \ | |
| 2359 "Trace accumulated time for Gen 0 collection") \ | |
| 2360 \ | |
| 2361 product(bool, TraceGen1Time, false, \ | |
| 2362 "Trace accumulated time for Gen 1 collection") \ | |
| 2363 \ | |
| 2364 product(bool, PrintTenuringDistribution, false, \ | |
| 2365 "Print tenuring age information") \ | |
| 2366 \ | |
| 2367 product_rw(bool, PrintHeapAtGC, false, \ | |
| 2368 "Print heap layout before and after each GC") \ | |
| 2369 \ | |
|
838
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|
2370 product_rw(bool, PrintHeapAtGCExtended, false, \ |
|
0316eac49d5a
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|
2371 "Prints extended information about the layout of the heap " \ |
|
0316eac49d5a
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779
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|
2372 "when -XX:+PrintHeapAtGC is set") \ |
|
0316eac49d5a
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diff
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|
2373 \ |
| 0 | 2374 product(bool, PrintHeapAtSIGBREAK, true, \ |
| 2375 "Print heap layout in response to SIGBREAK") \ | |
| 2376 \ | |
|
615
c6c601a0f2d6
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parents:
570
diff
changeset
|
2377 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
|
c6c601a0f2d6
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diff
changeset
|
2378 "Print a class histogram before any major stop-world GC") \ |
|
c6c601a0f2d6
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diff
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|
2379 \ |
|
c6c601a0f2d6
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diff
changeset
|
2380 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
|
c6c601a0f2d6
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diff
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|
2381 "Print a class histogram after any major stop-world GC") \ |
|
c6c601a0f2d6
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diff
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|
2382 \ |
| 0 | 2383 manageable(bool, PrintClassHistogram, false, \ |
| 2384 "Print a histogram of class instances") \ | |
| 2385 \ | |
| 2386 develop(bool, TraceWorkGang, false, \ | |
| 2387 "Trace activities of work gangs") \ | |
| 2388 \ | |
| 2389 product(bool, TraceParallelOldGCTasks, false, \ | |
| 2390 "Trace multithreaded GC activity") \ | |
| 2391 \ | |
| 2392 develop(bool, TraceBlockOffsetTable, false, \ | |
| 2393 "Print BlockOffsetTable maps") \ | |
| 2394 \ | |
| 2395 develop(bool, TraceCardTableModRefBS, false, \ | |
| 2396 "Print CardTableModRefBS maps") \ | |
| 2397 \ | |
| 2398 develop(bool, TraceGCTaskManager, false, \ | |
| 2399 "Trace actions of the GC task manager") \ | |
| 2400 \ | |
| 2401 develop(bool, TraceGCTaskQueue, false, \ | |
| 2402 "Trace actions of the GC task queues") \ | |
| 2403 \ | |
|
4095
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4067
diff
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|
2404 diagnostic(bool, TraceGCTaskThread, false, \ |
| 0 | 2405 "Trace actions of the GC task threads") \ |
| 2406 \ | |
| 2407 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
| 2408 "Print the time taken by each parallel old gc phase." \ | |
| 2409 "PrintGCDetails must also be enabled.") \ | |
| 2410 \ | |
| 2411 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
| 2412 "Trace parallel old gc marking phase") \ | |
| 2413 \ | |
| 2414 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
| 2415 "Trace parallel old gc summary phase") \ | |
| 2416 \ | |
| 2417 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
| 2418 "Trace parallel old gc compaction phase") \ | |
| 2419 \ | |
| 2420 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
| 2421 "Trace parallel old gc dense prefix computation") \ | |
| 2422 \ | |
| 2423 develop(bool, IgnoreLibthreadGPFault, false, \ | |
| 2424 "Suppress workaround for libthread GP fault") \ | |
| 2425 \ | |
|
139
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diff
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|
2426 product(bool, PrintJNIGCStalls, false, \ |
|
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
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parents:
95
diff
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|
2427 "Print diagnostic message when GC is stalled" \ |
|
c0492d52d55b
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95
diff
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|
2428 "by JNI critical section") \ |
|
c0492d52d55b
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apetrusenko
parents:
95
diff
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|
2429 \ |
|
3767
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parents:
3745
diff
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|
2430 /* GC log rotation setting */ \ |
|
2a241e764894
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diff
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|
2431 \ |
|
2a241e764894
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|
2432 product(bool, UseGCLogFileRotation, false, \ |
|
2a241e764894
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parents:
3745
diff
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|
2433 "Prevent large gclog file for long running app. " \ |
|
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parents:
3745
diff
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|
2434 "Requires -Xloggc:<filename>") \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
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|
2435 \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
changeset
|
2436 product(uintx, NumberOfGCLogFiles, 0, \ |
|
2a241e764894
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parents:
3745
diff
changeset
|
2437 "Number of gclog files in rotation, " \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3745
diff
changeset
|
2438 "Default: 0, no rotation") \ |
|
2a241e764894
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parents:
3745
diff
changeset
|
2439 \ |
|
2a241e764894
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parents:
3745
diff
changeset
|
2440 product(uintx, GCLogFileSize, 0, \ |
|
2a241e764894
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parents:
3745
diff
changeset
|
2441 "GC log file size, Default: 0 bytes, no rotation " \ |
|
2a241e764894
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3745
diff
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|
2442 "Only valid with UseGCLogFileRotation") \ |
|
2a241e764894
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|
2443 \ |
| 0 | 2444 /* JVMTI heap profiling */ \ |
| 2445 \ | |
| 2446 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
| 2447 "Trace JVMTI object tagging calls") \ | |
| 2448 \ | |
| 2449 diagnostic(bool, VerifyBeforeIteration, false, \ | |
| 2450 "Verify memory system before JVMTI iteration") \ | |
| 2451 \ | |
| 2452 /* compiler interface */ \ | |
| 2453 \ | |
| 2454 develop(bool, CIPrintCompilerName, false, \ | |
| 2455 "when CIPrint is active, print the name of the active compiler") \ | |
| 2456 \ | |
| 2457 develop(bool, CIPrintCompileQueue, false, \ | |
| 2458 "display the contents of the compile queue whenever a " \ | |
| 2459 "compilation is enqueued") \ | |
| 2460 \ | |
| 2461 develop(bool, CIPrintRequests, false, \ | |
| 2462 "display every request for compilation") \ | |
| 2463 \ | |
| 2464 product(bool, CITime, false, \ | |
| 2465 "collect timing information for compilation") \ | |
| 2466 \ | |
| 2467 develop(bool, CITimeEach, false, \ | |
| 2468 "display timing information after each successful compilation") \ | |
| 2469 \ | |
| 2470 develop(bool, CICountOSR, true, \ | |
| 2471 "use a separate counter when assigning ids to osr compilations") \ | |
| 2472 \ | |
| 2473 develop(bool, CICompileNatives, true, \ | |
| 2474 "compile native methods if supported by the compiler") \ | |
| 2475 \ | |
| 2476 develop_pd(bool, CICompileOSR, \ | |
| 2477 "compile on stack replacement methods if supported by the " \ | |
| 2478 "compiler") \ | |
| 2479 \ | |
| 2480 develop(bool, CIPrintMethodCodes, false, \ | |
| 2481 "print method bytecodes of the compiled code") \ | |
| 2482 \ | |
| 2483 develop(bool, CIPrintTypeFlow, false, \ | |
| 2484 "print the results of ciTypeFlow analysis") \ | |
| 2485 \ | |
| 2486 develop(bool, CITraceTypeFlow, false, \ | |
| 2487 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
| 2488 \ | |
| 2489 develop(intx, CICloneLoopTestLimit, 100, \ | |
| 2490 "size limit for blocks heuristically cloned in ciTypeFlow") \ | |
| 2491 \ | |
| 2403 | 2492 develop(intx, OSROnlyBCI, -1, \ |
| 2493 "OSR only at this bci. Negative values mean exclude that bci") \ | |
| 2494 \ | |
| 0 | 2495 /* temp diagnostics */ \ |
| 2496 \ | |
| 2497 diagnostic(bool, TraceRedundantCompiles, false, \ | |
| 2498 "Have compile broker print when a request already in the queue is"\ | |
| 2499 " requested again") \ | |
| 2500 \ | |
| 2501 diagnostic(bool, InitialCompileFast, false, \ | |
| 2502 "Initial compile at CompLevel_fast_compile") \ | |
| 2503 \ | |
| 2504 diagnostic(bool, InitialCompileReallyFast, false, \ | |
| 2505 "Initial compile at CompLevel_really_fast_compile (no profile)") \ | |
| 2506 \ | |
| 2507 diagnostic(bool, FullProfileOnReInterpret, true, \ | |
| 2508 "On re-interpret unc-trap compile next at CompLevel_fast_compile")\ | |
| 2509 \ | |
| 2510 /* compiler */ \ | |
| 2511 \ | |
| 2512 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
| 2513 "Number of compiler threads to run") \ | |
| 2514 \ | |
| 2515 product(intx, CompilationPolicyChoice, 0, \ | |
| 2516 "which compilation policy (0/1)") \ | |
| 2517 \ | |
| 2518 develop(bool, UseStackBanging, true, \ | |
| 2519 "use stack banging for stack overflow checks (required for " \ | |
| 2520 "proper StackOverflow handling; disable only to measure cost " \ | |
| 2521 "of stackbanging)") \ | |
| 2522 \ | |
| 2523 develop(bool, Use24BitFPMode, true, \ | |
| 2524 "Set 24-bit FPU mode on a per-compile basis ") \ | |
| 2525 \ | |
| 2526 develop(bool, Use24BitFP, true, \ | |
| 2527 "use FP instructions that produce 24-bit precise results") \ | |
| 2528 \ | |
| 2529 develop(bool, UseStrictFP, true, \ | |
| 2530 "use strict fp if modifier strictfp is set") \ | |
| 2531 \ | |
| 2532 develop(bool, GenerateSynchronizationCode, true, \ | |
| 2533 "generate locking/unlocking code for synchronized methods and " \ | |
| 2534 "monitors") \ | |
| 2535 \ | |
| 2536 develop(bool, GenerateCompilerNullChecks, true, \ | |
| 2537 "Generate explicit null checks for loads/stores/calls") \ | |
| 2538 \ | |
| 2539 develop(bool, GenerateRangeChecks, true, \ | |
| 2540 "Generate range checks for array accesses") \ | |
| 2541 \ | |
| 2542 develop_pd(bool, ImplicitNullChecks, \ | |
| 2543 "generate code for implicit null checks") \ | |
| 2544 \ | |
| 2545 product(bool, PrintSafepointStatistics, false, \ | |
| 2546 "print statistics about safepoint synchronization") \ | |
| 2547 \ | |
| 2548 product(intx, PrintSafepointStatisticsCount, 300, \ | |
| 2549 "total number of safepoint statistics collected " \ | |
| 2550 "before printing them out") \ | |
| 2551 \ | |
| 2552 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
| 2553 "print safepoint statistics only when safepoint takes" \ | |
| 2554 " more than PrintSafepointSatisticsTimeout in millis") \ | |
| 2555 \ | |
|
1321
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1288
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|
2556 product(bool, TraceSafepointCleanupTime, false, \ |
|
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2557 "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
|
2558 " safepoint") \ |
|
0f6600cee529
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parents:
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diff
changeset
|
2559 \ |
| 0 | 2560 develop(bool, InlineAccessors, true, \ |
| 2561 "inline accessor methods (get/set)") \ | |
| 2562 \ | |
| 2563 product(bool, Inline, true, \ | |
| 2564 "enable inlining") \ | |
| 2565 \ | |
| 2566 product(bool, ClipInlining, true, \ | |
| 2567 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
| 2568 \ | |
| 2569 develop(bool, UseCHA, true, \ | |
| 2570 "enable CHA") \ | |
| 2571 \ | |
| 2572 product(bool, UseTypeProfile, true, \ | |
| 2573 "Check interpreter profile for historically monomorphic calls") \ | |
| 2574 \ | |
| 2575 product(intx, TypeProfileMajorReceiverPercent, 90, \ | |
| 2576 "% of major receiver type to all profiled receivers") \ | |
| 2577 \ | |
| 2578 notproduct(bool, TimeCompiler, false, \ | |
| 2579 "time the compiler") \ | |
| 2580 \ | |
| 2581 notproduct(bool, TimeCompiler2, false, \ | |
| 2582 "detailed time the compiler (requires +TimeCompiler)") \ | |
| 2583 \ | |
| 2584 diagnostic(bool, PrintInlining, false, \ | |
| 2585 "prints inlining optimizations") \ | |
| 2586 \ | |
| 2587 diagnostic(bool, PrintIntrinsics, false, \ | |
| 2588 "prints attempted and successful inlining of intrinsics") \ | |
| 2589 \ | |
|
775
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2590 product(bool, UseCountLeadingZerosInstruction, false, \ |
|
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2591 "Use count leading zeros instruction") \ |
|
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2592 \ |
|
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2593 product(bool, UsePopCountInstruction, false, \ |
|
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2594 "Use population count instruction") \ |
|
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
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642
diff
changeset
|
2595 \ |
| 0 | 2596 diagnostic(ccstrlist, DisableIntrinsic, "", \ |
| 2597 "do not expand intrinsics whose (internal) names appear here") \ | |
| 2598 \ | |
| 2599 develop(bool, StressReflectiveCode, false, \ | |
| 2600 "Use inexact types at allocations, etc., to test reflection") \ | |
| 2601 \ | |
| 2602 develop(bool, EagerInitialization, false, \ | |
| 2603 "Eagerly initialize classes if possible") \ | |
| 2604 \ | |
| 2605 develop(bool, TraceMethodReplacement, false, \ | |
| 2606 "Print when methods are replaced do to recompilation") \ | |
| 2607 \ | |
| 2608 develop(bool, PrintMethodFlushing, false, \ | |
| 2609 "print the nmethods being flushed") \ | |
| 2610 \ | |
| 2611 notproduct(bool, LogMultipleMutexLocking, false, \ | |
| 2612 "log locking and unlocking of mutexes (only if multiple locks " \ | |
| 2613 "are held)") \ | |
| 2614 \ | |
| 2615 develop(bool, UseRelocIndex, false, \ | |
| 2616 "use an index to speed random access to relocations") \ | |
| 2617 \ | |
| 2618 develop(bool, StressCodeBuffers, false, \ | |
| 2619 "Exercise code buffer expansion and other rare state changes") \ | |
| 2620 \ | |
| 2621 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
| 2622 "Generate extra debugging info for non-safepoints in nmethods") \ | |
| 2623 \ | |
| 2624 diagnostic(bool, DebugInlinedCalls, true, \ | |
| 2625 "If false, restricts profiled locations to the root method only") \ | |
| 2626 \ | |
| 4066 | 2627 product(bool, PrintVMOptions, false, \ |
| 1150 | 2628 "Print flags that appeared on the command line") \ |
| 0 | 2629 \ |
| 564 | 2630 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
| 2631 "Ignore unrecognized VM options") \ | |
| 2632 \ | |
| 1150 | 2633 product(bool, PrintCommandLineFlags, false, \ |
| 2634 "Print flags specified on command line or set by ergonomics") \ | |
| 2635 \ | |
| 2636 product(bool, PrintFlagsInitial, false, \ | |
| 2637 "Print all VM flags before argument processing and exit VM") \ | |
| 2638 \ | |
| 2639 product(bool, PrintFlagsFinal, false, \ | |
| 2640 "Print all VM flags after argument and ergonomic processing") \ | |
| 2641 \ | |
|
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|
2642 notproduct(bool, PrintFlagsWithComments, false, \ |
|
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|
2643 "Print all VM flags with default values and descriptions and exit")\ |
|
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|
2644 \ |
| 0 | 2645 diagnostic(bool, SerializeVMOutput, true, \ |
| 2646 "Use a mutex to serialize output to tty and hotspot.log") \ | |
| 2647 \ | |
| 2648 diagnostic(bool, DisplayVMOutput, true, \ | |
| 2649 "Display all VM output on the tty, independently of LogVMOutput") \ | |
| 2650 \ | |
| 2651 diagnostic(bool, LogVMOutput, trueInDebug, \ | |
| 2652 "Save VM output to hotspot.log, or to LogFile") \ | |
| 2653 \ | |
| 2654 diagnostic(ccstr, LogFile, NULL, \ | |
| 2655 "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ | |
| 2656 \ | |
| 2657 product(ccstr, ErrorFile, NULL, \ | |
| 2658 "If an error occurs, save the error data to this file " \ | |
| 2659 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
| 2660 \ | |
| 2661 product(bool, DisplayVMOutputToStderr, false, \ | |
| 2662 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
| 2663 \ | |
| 2664 product(bool, DisplayVMOutputToStdout, false, \ | |
| 2665 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
| 2666 \ | |
| 2667 product(bool, UseHeavyMonitors, false, \ | |
| 2668 "use heavyweight instead of lightweight Java monitors") \ | |
| 2669 \ | |
| 6162 | 2670 product(bool, PrintStringTableStatistics, false, \ |
| 2671 "print statistics about the StringTable and SymbolTable") \ | |
| 2672 \ | |
| 0 | 2673 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
| 2674 "print histogram of the symbol table") \ | |
| 2675 \ | |
| 2676 notproduct(bool, ExitVMOnVerifyError, false, \ | |
| 2677 "standard exit from VM if bytecode verify error " \ | |
| 2678 "(only in debug mode)") \ | |
| 2679 \ | |
| 2680 notproduct(ccstr, AbortVMOnException, NULL, \ | |
| 2681 "Call fatal if this exception is thrown. Example: " \ | |
| 2682 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
| 2683 \ | |
|
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|
2684 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
|
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|
2685 "Call fatal if the exception pointed by AbortVMOnException " \ |
|
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|
2686 "has this message.") \ |
|
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|
2687 \ |
| 0 | 2688 develop(bool, DebugVtables, false, \ |
| 2689 "add debugging code to vtable dispatch") \ | |
| 2690 \ | |
| 2691 develop(bool, PrintVtables, false, \ | |
| 2692 "print vtables when printing klass") \ | |
| 2693 \ | |
| 2694 notproduct(bool, PrintVtableStats, false, \ | |
| 2695 "print vtables stats at end of run") \ | |
| 2696 \ | |
| 2697 develop(bool, TraceCreateZombies, false, \ | |
| 2698 "trace creation of zombie nmethods") \ | |
| 2699 \ | |
| 2700 notproduct(bool, IgnoreLockingAssertions, false, \ | |
| 2701 "disable locking assertions (for speed)") \ | |
| 2702 \ | |
| 2703 notproduct(bool, VerifyLoopOptimizations, false, \ | |
| 2704 "verify major loop optimizations") \ | |
| 2705 \ | |
| 2706 product(bool, RangeCheckElimination, true, \ | |
| 2707 "Split loop iterations to eliminate range checks") \ | |
| 2708 \ | |
| 2709 develop_pd(bool, UncommonNullCast, \ | |
| 2710 "track occurrences of null in casts; adjust compiler tactics") \ | |
| 2711 \ | |
| 2712 develop(bool, TypeProfileCasts, true, \ | |
| 2713 "treat casts like calls for purposes of type profiling") \ | |
| 2714 \ | |
| 2715 develop(bool, MonomorphicArrayCheck, true, \ | |
| 2716 "Uncommon-trap array store checks that require full type check") \ | |
| 2717 \ | |
|
1746
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|
2718 diagnostic(bool, ProfileDynamicTypes, true, \ |
|
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|
2719 "do extra type profiling and use it more aggressively") \ |
|
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|
2720 \ |
| 0 | 2721 develop(bool, DelayCompilationDuringStartup, true, \ |
| 2722 "Delay invoking the compiler until main application class is " \ | |
| 2723 "loaded") \ | |
| 2724 \ | |
| 2725 develop(bool, CompileTheWorld, false, \ | |
| 2726 "Compile all methods in all classes in bootstrap class path " \ | |
| 2727 "(stress test)") \ | |
| 2728 \ | |
| 2729 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
| 2730 "Preload all classes used by a class before start loading") \ | |
| 2731 \ | |
|
1188
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|
2732 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
|
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|
2733 "Force a safepoint every n compiles so sweeper can keep up") \ |
|
99af867dfa05
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|
2734 \ |
| 0 | 2735 develop(bool, TraceIterativeGVN, false, \ |
| 2736 "Print progress during Iterative Global Value Numbering") \ | |
| 2737 \ | |
| 2738 develop(bool, FillDelaySlots, true, \ | |
| 2739 "Fill delay slots (on SPARC only)") \ | |
| 2740 \ | |
| 2741 develop(bool, VerifyIterativeGVN, false, \ | |
| 2742 "Verify Def-Use modifications during sparse Iterative Global " \ | |
| 2743 "Value Numbering") \ | |
| 2744 \ | |
| 2745 notproduct(bool, TracePhaseCCP, false, \ | |
| 2746 "Print progress during Conditional Constant Propagation") \ | |
| 2747 \ | |
| 2748 develop(bool, TimeLivenessAnalysis, false, \ | |
| 2749 "Time computation of bytecode liveness analysis") \ | |
| 2750 \ | |
| 2751 develop(bool, TraceLivenessGen, false, \ | |
| 2752 "Trace the generation of liveness analysis information") \ | |
| 2753 \ | |
| 2754 notproduct(bool, TraceLivenessQuery, false, \ | |
| 2755 "Trace queries of liveness analysis information") \ | |
| 2756 \ | |
| 2757 notproduct(bool, CollectIndexSetStatistics, false, \ | |
| 2758 "Collect information about IndexSets") \ | |
| 2759 \ | |
| 2760 develop(bool, PrintDominators, false, \ | |
| 2761 "Print out dominator trees for GVN") \ | |
| 2762 \ | |
| 2763 develop(bool, UseLoopSafepoints, true, \ | |
| 2764 "Generate Safepoint nodes in every loop") \ | |
| 2765 \ | |
| 2766 notproduct(bool, TraceCISCSpill, false, \ | |
| 2767 "Trace allocators use of cisc spillable instructions") \ | |
| 2768 \ | |
| 2769 notproduct(bool, TraceSpilling, false, \ | |
| 2770 "Trace spilling") \ | |
| 2771 \ | |
| 2772 product(bool, SplitIfBlocks, true, \ | |
| 2773 "Clone compares and control flow through merge points to fold " \ | |
| 2774 "some branches") \ | |
| 2775 \ | |
| 2776 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
| 2777 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
| 2778 "Inline allocations larger than this in doublewords must go slow")\ | |
| 2779 \ | |
| 2780 product(bool, AggressiveOpts, false, \ | |
| 2781 "Enable aggressive optimizations - see arguments.cpp") \ | |
| 2782 \ | |
|
192
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|
2783 product(bool, UseStringCache, false, \ |
|
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|
2784 "Enable String cache capabilities on String.java") \ |
|
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|
2785 \ |
| 0 | 2786 /* statistics */ \ |
| 2787 develop(bool, CountCompiledCalls, false, \ | |
| 2788 "counts method invocations") \ | |
| 2789 \ | |
| 2790 notproduct(bool, CountRuntimeCalls, false, \ | |
| 2791 "counts VM runtime calls") \ | |
| 2792 \ | |
| 2793 develop(bool, CountJNICalls, false, \ | |
| 2794 "counts jni method invocations") \ | |
| 2795 \ | |
| 2796 notproduct(bool, CountJVMCalls, false, \ | |
| 2797 "counts jvm method invocations") \ | |
| 2798 \ | |
| 2799 notproduct(bool, CountRemovableExceptions, false, \ | |
| 2800 "count exceptions that could be replaced by branches due to " \ | |
| 2801 "inlining") \ | |
| 2802 \ | |
| 2803 notproduct(bool, ICMissHistogram, false, \ | |
| 2804 "produce histogram of IC misses") \ | |
| 2805 \ | |
| 2806 notproduct(bool, PrintClassStatistics, false, \ | |
| 2807 "prints class statistics at end of run") \ | |
| 2808 \ | |
| 2809 notproduct(bool, PrintMethodStatistics, false, \ | |
| 2810 "prints method statistics at end of run") \ | |
| 2811 \ | |
| 2812 /* interpreter */ \ | |
| 2813 develop(bool, ClearInterpreterLocals, false, \ | |
| 2814 "Always clear local variables of interpreter activations upon " \ | |
| 2815 "entry") \ | |
| 2816 \ | |
| 2817 product_pd(bool, RewriteBytecodes, \ | |
| 2818 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
| 2819 \ | |
| 2820 product_pd(bool, RewriteFrequentPairs, \ | |
| 2821 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
| 2822 \ | |
|
100
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diff
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|
2823 diagnostic(bool, PrintInterpreter, false, \ |
| 0 | 2824 "Prints the generated interpreter code") \ |
| 2825 \ | |
| 2826 product(bool, UseInterpreter, true, \ | |
| 2827 "Use interpreter for non-compiled methods") \ | |
| 2828 \ | |
| 2829 develop(bool, UseFastSignatureHandlers, true, \ | |
| 2830 "Use fast signature handlers for native calls") \ | |
| 2831 \ | |
| 2832 develop(bool, UseV8InstrsOnly, false, \ | |
| 2833 "Use SPARC-V8 Compliant instruction subset") \ | |
| 2834 \ | |
| 2835 product(bool, UseNiagaraInstrs, false, \ | |
| 2836 "Use Niagara-efficient instruction subset") \ | |
| 2837 \ | |
| 2838 develop(bool, UseCASForSwap, false, \ | |
| 2839 "Do not use swap instructions, but only CAS (in a loop) on SPARC")\ | |
| 2840 \ | |
| 2841 product(bool, UseLoopCounter, true, \ | |
| 2842 "Increment invocation counter on backward branch") \ | |
| 2843 \ | |
| 2844 product(bool, UseFastEmptyMethods, true, \ | |
| 2845 "Use fast method entry code for empty methods") \ | |
| 2846 \ | |
| 2847 product(bool, UseFastAccessorMethods, true, \ | |
| 2848 "Use fast method entry code for accessor methods") \ | |
| 2849 \ | |
| 2850 product_pd(bool, UseOnStackReplacement, \ | |
| 2851 "Use on stack replacement, calls runtime if invoc. counter " \ | |
| 2852 "overflows in loop") \ | |
| 2853 \ | |
| 2854 notproduct(bool, TraceOnStackReplacement, false, \ | |
| 2855 "Trace on stack replacement") \ | |
| 2856 \ | |
| 2857 develop(bool, PoisonOSREntry, true, \ | |
| 2858 "Detect abnormal calls to OSR code") \ | |
| 2859 \ | |
| 2860 product_pd(bool, PreferInterpreterNativeStubs, \ | |
| 2861 "Use always interpreter stubs for native methods invoked via " \ | |
| 2862 "interpreter") \ | |
| 2863 \ | |
| 2864 develop(bool, CountBytecodes, false, \ | |
| 2865 "Count number of bytecodes executed") \ | |
| 2866 \ | |
| 2867 develop(bool, PrintBytecodeHistogram, false, \ | |
| 2868 "Print histogram of the executed bytecodes") \ | |
| 2869 \ | |
| 2870 develop(bool, PrintBytecodePairHistogram, false, \ | |
| 2871 "Print histogram of the executed bytecode pairs") \ | |
| 2872 \ | |
|
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diff
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|
2873 diagnostic(bool, PrintSignatureHandlers, false, \ |
| 0 | 2874 "Print code generated for native method signature handlers") \ |
| 2875 \ | |
| 2876 develop(bool, VerifyOops, false, \ | |
| 2877 "Do plausibility checks for oops") \ | |
| 2878 \ | |
| 2879 develop(bool, CheckUnhandledOops, false, \ | |
| 2880 "Check for unhandled oops in VM code") \ | |
| 2881 \ | |
| 2882 develop(bool, VerifyJNIFields, trueInDebug, \ | |
| 2883 "Verify jfieldIDs for instance fields") \ | |
| 2884 \ | |
| 2885 notproduct(bool, VerifyJNIEnvThread, false, \ | |
| 2886 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
| 2887 "from JNI") \ | |
| 2888 \ | |
| 2889 develop(bool, VerifyFPU, false, \ | |
| 2890 "Verify FPU state (check for NaN's, etc.)") \ | |
| 2891 \ | |
| 2892 develop(bool, VerifyThread, false, \ | |
| 2893 "Watch the thread register for corruption (SPARC only)") \ | |
| 2894 \ | |
| 2895 develop(bool, VerifyActivationFrameSize, false, \ | |
| 2896 "Verify that activation frame didn't become smaller than its " \ | |
| 2897 "minimal size") \ | |
| 2898 \ | |
| 2899 develop(bool, TraceFrequencyInlining, false, \ | |
| 2900 "Trace frequency based inlining") \ | |
| 2901 \ | |
| 2902 notproduct(bool, TraceTypeProfile, false, \ | |
| 2903 "Trace type profile") \ | |
| 2904 \ | |
| 2905 develop_pd(bool, InlineIntrinsics, \ | |
| 2906 "Inline intrinsics that can be statically resolved") \ | |
| 2907 \ | |
| 2908 product_pd(bool, ProfileInterpreter, \ | |
| 2909 "Profile at the bytecode level during interpretation") \ | |
| 2910 \ | |
| 2911 develop_pd(bool, ProfileTraps, \ | |
| 2912 "Profile deoptimization traps at the bytecode level") \ | |
| 2913 \ | |
| 2914 product(intx, ProfileMaturityPercentage, 20, \ | |
| 2915 "number of method invocations/branches (expressed as % of " \ | |
| 2916 "CompileThreshold) before using the method's profile") \ | |
| 2917 \ | |
| 2918 develop(bool, PrintMethodData, false, \ | |
| 2919 "Print the results of +ProfileInterpreter at end of run") \ | |
| 2920 \ | |
| 2921 develop(bool, VerifyDataPointer, trueInDebug, \ | |
| 2922 "Verify the method data pointer during interpreter profiling") \ | |
| 2923 \ | |
| 2924 develop(bool, VerifyCompiledCode, false, \ | |
| 2925 "Include miscellaneous runtime verifications in nmethod code; " \ | |
| 1064 | 2926 "default off because it disturbs nmethod size heuristics") \ |
| 0 | 2927 \ |
|
1119
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diff
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|
2928 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
|
547f81740344
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1064
diff
changeset
|
2929 "Manually make GC thread crash then dump java stack trace; " \ |
|
547f81740344
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1064
diff
changeset
|
2930 "Test only") \ |
| 0 | 2931 \ |
| 2932 /* compilation */ \ | |
| 2933 product(bool, UseCompiler, true, \ | |
| 2934 "use compilation") \ | |
| 2935 \ | |
| 2936 develop(bool, TraceCompilationPolicy, false, \ | |
| 2937 "Trace compilation policy") \ | |
| 2938 \ | |
| 2939 develop(bool, TimeCompilationPolicy, false, \ | |
| 2940 "Time the compilation policy") \ | |
| 2941 \ | |
| 2942 product(bool, UseCounterDecay, true, \ | |
| 2943 "adjust recompilation counters") \ | |
| 2944 \ | |
| 2945 develop(intx, CounterHalfLifeTime, 30, \ | |
| 2946 "half-life time of invocation counters (in secs)") \ | |
| 2947 \ | |
| 2948 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
| 2949 "Min. ms. between invocation of CounterDecay") \ | |
| 2950 \ | |
| 2951 product(bool, AlwaysCompileLoopMethods, false, \ | |
| 2952 "when using recompilation, never interpret methods " \ | |
| 2953 "containing loops") \ | |
| 2954 \ | |
| 2955 product(bool, DontCompileHugeMethods, true, \ | |
| 2956 "don't compile methods > HugeMethodLimit") \ | |
| 2957 \ | |
| 2958 /* Bytecode escape analysis estimation. */ \ | |
| 2959 product(bool, EstimateArgEscape, true, \ | |
| 2960 "Analyze bytecodes to estimate escape state of arguments") \ | |
| 2961 \ | |
| 2962 product(intx, BCEATraceLevel, 0, \ | |
| 2963 "How much tracing to do of bytecode escape analysis estimates") \ | |
| 2964 \ | |
| 2965 product(intx, MaxBCEAEstimateLevel, 5, \ | |
| 2966 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
| 2967 \ | |
| 2968 product(intx, MaxBCEAEstimateSize, 150, \ | |
| 2969 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
| 2970 \ | |
| 2971 product(intx, AllocatePrefetchStyle, 1, \ | |
| 2972 "0 = no prefetch, " \ | |
| 2973 "1 = prefetch instructions for each allocation, " \ | |
|
1367
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|
2974 "2 = use TLAB watermark to gate allocation prefetch, " \ |
|
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|
2975 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
| 0 | 2976 \ |
| 2977 product(intx, AllocatePrefetchDistance, -1, \ | |
| 2978 "Distance to prefetch ahead of allocation pointer") \ | |
| 2979 \ | |
| 3854 | 2980 product(intx, AllocatePrefetchLines, 3, \ |
| 2981 "Number of lines to prefetch ahead of array allocation pointer") \ | |
| 2982 \ | |
| 2983 product(intx, AllocateInstancePrefetchLines, 1, \ | |
| 2984 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
| 0 | 2985 \ |
| 2986 product(intx, AllocatePrefetchStepSize, 16, \ | |
| 2987 "Step size in bytes of sequential prefetch instructions") \ | |
| 2988 \ | |
| 2989 product(intx, AllocatePrefetchInstr, 0, \ | |
| 2990 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
| 2991 \ | |
| 2992 product(intx, ReadPrefetchInstr, 0, \ | |
| 2993 "Prefetch instruction to prefetch ahead") \ | |
| 2994 \ | |
| 3903 | 2995 product(uintx, ArraycopySrcPrefetchDistance, 0, \ |
| 2996 "Distance to prefetch source array in arracopy") \ | |
| 2997 \ | |
| 2998 product(uintx, ArraycopyDstPrefetchDistance, 0, \ | |
| 2999 "Distance to prefetch destination array in arracopy") \ | |
| 3000 \ | |
| 0 | 3001 /* deoptimization */ \ |
| 3002 develop(bool, TraceDeoptimization, false, \ | |
| 3003 "Trace deoptimization") \ | |
| 3004 \ | |
| 3005 develop(bool, DebugDeoptimization, false, \ | |
| 3006 "Tracing various information while debugging deoptimization") \ | |
| 3007 \ | |
| 3008 product(intx, SelfDestructTimer, 0, \ | |
| 3009 "Will cause VM to terminate after a given time (in minutes) " \ | |
| 3010 "(0 means off)") \ | |
| 3011 \ | |
| 3012 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
| 3013 "Max. no. of lines in the stack trace for Java exceptions " \ | |
| 3014 "(0 means all)") \ | |
| 3015 \ | |
|
3328
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3255
diff
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|
3016 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
| 0 | 3017 "Guarantee a safepoint (at least) every so many milliseconds " \ |
|
2192
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|
3018 "(0 means none)")) \ |
|
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|
3019 \ |
|
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|
3020 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
|
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|
3021 "Guarantee a safepoint (at least) every so many milliseconds " \ |
|
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|
3022 "(0 means none)")) \ |
| 0 | 3023 \ |
| 3024 product(intx, SafepointTimeoutDelay, 10000, \ | |
| 3025 "Delay in milliseconds for option SafepointTimeout") \ | |
| 3026 \ | |
|
4945
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|
3027 product(intx, NmethodSweepFraction, 16, \ |
| 0 | 3028 "Number of invocations of sweeper to cover all nmethods") \ |
| 3029 \ | |
|
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|
3030 product(intx, NmethodSweepCheckInterval, 5, \ |
|
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diff
changeset
|
3031 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
|
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diff
changeset
|
3032 \ |
|
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3033 notproduct(bool, LogSweeper, false, \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3034 "Keep a ring buffer of sweeper activity") \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3035 \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3036 notproduct(intx, SweeperLogEntries, 1024, \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
3037 "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
|
3038 \ |
| 0 | 3039 notproduct(intx, MemProfilingInterval, 500, \ |
| 3040 "Time between each invocation of the MemProfiler") \ | |
| 3041 \ | |
| 3042 develop(intx, MallocCatchPtr, -1, \ | |
| 3043 "Hit breakpoint when mallocing/freeing this pointer") \ | |
| 3044 \ | |
| 3045 notproduct(intx, AssertRepeat, 1, \ | |
| 3046 "number of times to evaluate expression in assert " \ | |
| 3047 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
| 3048 \ | |
| 3049 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
| 3050 "List of assertions (file:line) to muzzle") \ | |
| 3051 \ | |
| 3052 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
| 3053 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
| 3054 "is used") \ | |
| 3055 \ | |
| 3056 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
| 3057 "Threshold for total handle allocation when " \ | |
| 3058 "+TraceHandleAllocation is used") \ | |
| 3059 \ | |
| 3060 develop(intx, StackPrintLimit, 100, \ | |
| 3061 "number of stack frames to print in VM-level stack dump") \ | |
| 3062 \ | |
| 3063 notproduct(intx, MaxElementPrintSize, 256, \ | |
| 3064 "maximum number of elements to print") \ | |
| 3065 \ | |
| 3066 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
| 3067 "maximum number of subklasses to print when printing klass") \ | |
| 3068 \ | |
|
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jrose
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1150
diff
changeset
|
3069 product(intx, MaxInlineLevel, 9, \ |
| 0 | 3070 "maximum number of nested calls that are inlined") \ |
| 3071 \ | |
|
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3072 product(intx, MaxRecursiveInlineLevel, 1, \ |
| 0 | 3073 "maximum number of nested recursive calls that are inlined") \ |
| 3074 \ | |
| 675 | 3075 product_pd(intx, InlineSmallCode, \ |
| 0 | 3076 "Only inline already compiled methods if their code size is " \ |
| 3077 "less than this") \ | |
| 3078 \ | |
| 3079 product(intx, MaxInlineSize, 35, \ | |
| 3080 "maximum bytecode size of a method to be inlined") \ | |
| 3081 \ | |
| 3082 product_pd(intx, FreqInlineSize, \ | |
| 3083 "maximum bytecode size of a frequent 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, MaxTrivialSize, 6, \ |
| 0 | 3086 "maximum bytecode size of a trivial method to be inlined") \ |
| 3087 \ | |
|
1157
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jrose
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1150
diff
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|
3088 product(intx, MinInliningThreshold, 250, \ |
| 0 | 3089 "min. invocation count a method needs to have to be inlined") \ |
| 3090 \ | |
| 3091 develop(intx, AlignEntryCode, 4, \ | |
| 3092 "aligns entry code to specified value (in bytes)") \ | |
| 3093 \ | |
| 3094 develop(intx, MethodHistogramCutoff, 100, \ | |
| 3095 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
| 3096 \ | |
| 3097 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
| 3098 "# of interpreted methods to show in profile") \ | |
| 3099 \ | |
| 3100 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
| 3101 "# of compiled methods to show in profile") \ | |
| 3102 \ | |
| 3103 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
| 3104 "# of stub methods to show in profile") \ | |
| 3105 \ | |
| 3106 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
| 3107 "# of runtime stub nodes to show in profile") \ | |
| 3108 \ | |
| 3109 product(intx, ProfileIntervalsTicks, 100, \ | |
| 3110 "# of ticks between printing of interval profile " \ | |
| 3111 "(+ProfileIntervals)") \ | |
| 3112 \ | |
| 3113 notproduct(intx, ScavengeALotInterval, 1, \ | |
| 3114 "Interval between which scavenge will occur with +ScavengeALot") \ | |
| 3115 \ | |
| 3116 notproduct(intx, FullGCALotInterval, 1, \ | |
| 3117 "Interval between which full gc will occur with +FullGCALot") \ | |
| 3118 \ | |
| 3119 notproduct(intx, FullGCALotStart, 0, \ | |
| 3120 "For which invocation to start FullGCAlot") \ | |
| 3121 \ | |
| 3122 notproduct(intx, FullGCALotDummies, 32*K, \ | |
| 3123 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
| 3124 "to move") \ | |
| 3125 \ | |
| 3126 develop(intx, DontYieldALotInterval, 10, \ | |
| 3127 "Interval between which yields will be dropped (milliseconds)") \ | |
| 3128 \ | |
| 3129 develop(intx, MinSleepInterval, 1, \ | |
| 3130 "Minimum sleep() interval (milliseconds) when " \ | |
| 3131 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
| 3132 \ | |
| 3133 product(intx, EventLogLength, 2000, \ | |
| 3134 "maximum nof events in event log") \ | |
| 3135 \ | |
| 3136 develop(intx, ProfilerPCTickThreshold, 15, \ | |
| 3137 "Number of ticks in a PC buckets to be a hotspot") \ | |
| 3138 \ | |
| 3139 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
| 3140 "Number of exits until DeoptimizeALot kicks in") \ | |
| 3141 \ | |
| 3142 notproduct(intx, ZombieALotInterval, 5, \ | |
| 3143 "Number of exits until ZombieALot kicks in") \ | |
| 3144 \ | |
| 3145 develop(bool, StressNonEntrant, false, \ | |
| 3146 "Mark nmethods non-entrant at registration") \ | |
| 3147 \ | |
| 3148 diagnostic(intx, MallocVerifyInterval, 0, \ | |
| 3149 "if non-zero, verify C heap after every N calls to " \ | |
| 3150 "malloc/realloc/free") \ | |
| 3151 \ | |
| 3152 diagnostic(intx, MallocVerifyStart, 0, \ | |
| 3153 "if non-zero, start verifying C heap after Nth call to " \ | |
| 3154 "malloc/realloc/free") \ | |
| 3155 \ | |
| 1783 | 3156 product(intx, TypeProfileWidth, 2, \ |
| 0 | 3157 "number of receiver types to record in call/cast profile") \ |
| 3158 \ | |
| 3159 develop(intx, BciProfileWidth, 2, \ | |
| 3160 "number of return bci's to record in ret profile") \ | |
| 3161 \ | |
| 3162 product(intx, PerMethodRecompilationCutoff, 400, \ | |
| 3163 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
| 3164 \ | |
|
1206
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6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
3165 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
| 0 | 3166 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
| 3167 \ | |
| 3168 product(intx, PerMethodTrapLimit, 100, \ | |
| 3169 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
| 3170 \ | |
| 3171 product(intx, PerBytecodeTrapLimit, 4, \ | |
| 3172 "Limit on traps (of one kind) at a particular BCI") \ | |
| 3173 \ | |
| 3174 develop(intx, FreqCountInvocations, 1, \ | |
| 3175 "Scaling factor for branch frequencies (deprecated)") \ | |
| 3176 \ | |
| 3177 develop(intx, InlineFrequencyRatio, 20, \ | |
| 3178 "Ratio of call site execution to caller method invocation") \ | |
| 3179 \ | |
| 3180 develop_pd(intx, InlineFrequencyCount, \ | |
| 3181 "Count of call site execution necessary to trigger frequent " \ | |
| 3182 "inlining") \ | |
| 3183 \ | |
| 3184 develop(intx, InlineThrowCount, 50, \ | |
| 3185 "Force inlining of interpreted methods that throw this often") \ | |
| 3186 \ | |
| 3187 develop(intx, InlineThrowMaxSize, 200, \ | |
| 3188 "Force inlining of throwing methods smaller than this") \ | |
| 3189 \ | |
| 3190 product(intx, AliasLevel, 3, \ | |
| 3191 "0 for no aliasing, 1 for oop/field/static/array split, " \ | |
| 3192 "2 for class split, 3 for unique instances") \ | |
| 3193 \ | |
| 3194 develop(bool, VerifyAliases, false, \ | |
| 3195 "perform extra checks on the results of alias analysis") \ | |
| 3196 \ | |
| 3197 develop(intx, ProfilerNodeSize, 1024, \ | |
| 3198 "Size in K to allocate for the Profile Nodes of each thread") \ | |
| 3199 \ | |
| 3200 develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \ | |
| 3201 "Number of times to spin wait on a v8 atomic operation lock") \ | |
| 3202 \ | |
| 3203 product(intx, ReadSpinIterations, 100, \ | |
| 3204 "Number of read attempts before a yield (spin inner loop)") \ | |
| 3205 \ | |
| 3206 product_pd(intx, PreInflateSpin, \ | |
| 3207 "Number of times to spin wait before inflation") \ | |
| 3208 \ | |
| 3209 product(intx, PreBlockSpin, 10, \ | |
| 3210 "Number of times to spin in an inflated lock before going to " \ | |
| 3211 "an OS lock") \ | |
| 3212 \ | |
| 3213 /* gc parameters */ \ | |
| 1064 | 3214 product(uintx, InitialHeapSize, 0, \ |
| 3215 "Initial heap size (in bytes); zero means OldSize + NewSize") \ | |
| 3216 \ | |
| 3217 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
| 3218 "Maximum heap size (in bytes)") \ | |
| 3219 \ | |
| 3220 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
| 3221 "Initial tenured generation size (in bytes)") \ | |
| 3222 \ | |
|
1287
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6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
3223 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
| 1064 | 3224 "Initial new generation size (in bytes)") \ |
| 0 | 3225 \ |
| 3226 product(uintx, MaxNewSize, max_uintx, \ | |
| 1064 | 3227 "Maximum new generation size (in bytes), max_uintx means set " \ |
| 3228 "ergonomically") \ | |
| 0 | 3229 \ |
| 3230 product(uintx, PretenureSizeThreshold, 0, \ | |
| 1064 | 3231 "Maximum size in bytes of objects allocated in DefNew " \ |
| 3232 "generation; zero means no maximum") \ | |
| 3233 \ | |
| 3234 product(uintx, TLABSize, 0, \ | |
| 3235 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
| 0 | 3236 \ |
| 3237 product(uintx, MinTLABSize, 2*K, \ | |
| 3238 "Minimum allowed TLAB size (in bytes)") \ | |
| 3239 \ | |
| 3240 product(uintx, TLABAllocationWeight, 35, \ | |
| 3241 "Allocation averaging weight") \ | |
| 3242 \ | |
| 3243 product(uintx, TLABWasteTargetPercent, 1, \ | |
| 3244 "Percentage of Eden that can be wasted") \ | |
| 3245 \ | |
| 3246 product(uintx, TLABRefillWasteFraction, 64, \ | |
| 3247 "Max TLAB waste at a refill (internal fragmentation)") \ | |
| 3248 \ | |
| 3249 product(uintx, TLABWasteIncrement, 4, \ | |
| 3250 "Increment allowed waste at slow allocation") \ | |
| 3251 \ | |
| 1064 | 3252 product(intx, SurvivorRatio, 8, \ |
| 0 | 3253 "Ratio of eden/survivor space size") \ |
| 3254 \ | |
| 1064 | 3255 product(intx, NewRatio, 2, \ |
| 0 | 3256 "Ratio of new/old generation sizes") \ |
| 3257 \ | |
| 3258 product_pd(uintx, NewSizeThreadIncrease, \ | |
| 3259 "Additional size added to desired new generation size per " \ | |
| 3260 "non-daemon thread (in bytes)") \ | |
| 3261 \ | |
| 3262 product_pd(uintx, PermSize, \ | |
| 1064 | 3263 "Initial size of permanent generation (in bytes)") \ |
| 0 | 3264 \ |
| 3265 product_pd(uintx, MaxPermSize, \ | |
| 3266 "Maximum size of permanent generation (in bytes)") \ | |
| 3267 \ | |
| 3268 product(uintx, MinHeapFreeRatio, 40, \ | |
| 3269 "Min percentage of heap free after GC to avoid expansion") \ | |
| 3270 \ | |
| 3271 product(uintx, MaxHeapFreeRatio, 70, \ | |
| 3272 "Max percentage of heap free after GC to avoid shrinking") \ | |
| 3273 \ | |
| 3274 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
| 3275 "Number of milliseconds per MB of free space in the heap") \ | |
| 3276 \ | |
| 3277 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
| 3278 "Min change in heap space due to GC (in bytes)") \ | |
| 3279 \ | |
| 3280 product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \ | |
| 3281 "Min expansion of permanent heap (in bytes)") \ | |
| 3282 \ | |
| 3283 product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \ | |
| 3284 "Max expansion of permanent heap without full GC (in bytes)") \ | |
| 3285 \ | |
| 3286 product(intx, QueuedAllocationWarningCount, 0, \ | |
| 3287 "Number of times an allocation that queues behind a GC " \ | |
| 3288 "will retry before printing a warning") \ | |
| 3289 \ | |
| 3290 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
| 3291 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
| 3292 \ | |
| 3293 diagnostic(intx, VerifyGCLevel, 0, \ | |
| 3294 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
| 3295 \ | |
| 3296 product(intx, MaxTenuringThreshold, 15, \ | |
| 3297 "Maximum value for tenuring threshold") \ | |
| 3298 \ | |
| 3299 product(intx, InitialTenuringThreshold, 7, \ | |
| 3300 "Initial value for tenuring threshold") \ | |
| 3301 \ | |
| 3302 product(intx, TargetSurvivorRatio, 50, \ | |
| 3303 "Desired percentage of survivor space used after scavenge") \ | |
| 3304 \ | |
| 438 | 3305 product(uintx, MarkSweepDeadRatio, 5, \ |
| 0 | 3306 "Percentage (0-100) of the old gen allowed as dead wood." \ |
| 3307 "Serial mark sweep treats this as both the min and max value." \ | |
| 3308 "CMS uses this value only if it falls back to mark sweep." \ | |
| 3309 "Par compact uses a variable scale based on the density of the" \ | |
| 3310 "generation and treats this as the max value when the heap is" \ | |
| 3311 "either completely full or completely empty. Par compact also" \ | |
| 3312 "has a smaller default value; see arguments.cpp.") \ | |
| 3313 \ | |
| 438 | 3314 product(uintx, PermMarkSweepDeadRatio, 20, \ |
| 0 | 3315 "Percentage (0-100) of the perm gen allowed as dead wood." \ |
| 3316 "See MarkSweepDeadRatio for collector-specific comments.") \ | |
| 3317 \ | |
| 3318 product(intx, MarkSweepAlwaysCompactCount, 4, \ | |
| 3319 "How often should we fully compact the heap (ignoring the dead " \ | |
| 3320 "space parameters)") \ | |
| 3321 \ | |
| 3322 product(intx, PrintCMSStatistics, 0, \ | |
| 3323 "Statistics for CMS") \ | |
| 3324 \ | |
| 3325 product(bool, PrintCMSInitiationStatistics, false, \ | |
| 3326 "Statistics for initiating a CMS collection") \ | |
| 3327 \ | |
| 3328 product(intx, PrintFLSStatistics, 0, \ | |
| 3329 "Statistics for CMS' FreeListSpace") \ | |
| 3330 \ | |
| 3331 product(intx, PrintFLSCensus, 0, \ | |
| 3332 "Census for CMS' FreeListSpace") \ | |
| 3333 \ | |
| 3334 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
| 3335 "Delay in ms between expansion and allocation") \ | |
| 3336 \ | |
| 3337 product(intx, DeferThrSuspendLoopCount, 4000, \ | |
| 3338 "(Unstable) Number of times to iterate in safepoint loop " \ | |
| 3339 " before blocking VM threads ") \ | |
| 3340 \ | |
| 3341 product(intx, DeferPollingPageLoopCount, -1, \ | |
| 3342 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
| 3343 "before changing safepoint polling page to RO ") \ | |
| 3344 \ | |
| 3345 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
| 3346 \ | |
| 3347 product(bool, PSChunkLargeArrays, true, \ | |
| 3348 "true: process large arrays in chunks") \ | |
| 3349 \ | |
| 3350 product(uintx, GCDrainStackTargetSize, 64, \ | |
| 3351 "how many entries we'll try to leave on the stack during " \ | |
| 3352 "parallel GC") \ | |
| 3353 \ | |
| 3354 /* stack parameters */ \ | |
| 3355 product_pd(intx, StackYellowPages, \ | |
| 3356 "Number of yellow zone (recoverable overflows) pages") \ | |
| 3357 \ | |
| 3358 product_pd(intx, StackRedPages, \ | |
| 3359 "Number of red zone (unrecoverable overflows) pages") \ | |
| 3360 \ | |
| 3361 product_pd(intx, StackShadowPages, \ | |
| 3362 "Number of shadow zone (for overflow checking) pages" \ | |
| 3363 " this should exceed the depth of the VM and native call stack") \ | |
| 3364 \ | |
| 3365 product_pd(intx, ThreadStackSize, \ | |
| 3366 "Thread Stack Size (in Kbytes)") \ | |
| 3367 \ | |
| 3368 product_pd(intx, VMThreadStackSize, \ | |
| 3369 "Non-Java Thread Stack Size (in Kbytes)") \ | |
| 3370 \ | |
| 3371 product_pd(intx, CompilerThreadStackSize, \ | |
| 3372 "Compiler Thread Stack Size (in Kbytes)") \ | |
| 3373 \ | |
| 3374 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
| 3375 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
| 3376 \ | |
| 3377 product(uintx, ThreadSafetyMargin, 50*M, \ | |
| 3378 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
| 3379 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
| 3380 "disable this feature") \ | |
| 3381 \ | |
| 3382 /* code cache parameters */ \ | |
| 3383 develop(uintx, CodeCacheSegmentSize, 64, \ | |
| 3384 "Code cache segment size (in bytes) - smallest unit of " \ | |
| 3385 "allocation") \ | |
| 3386 \ | |
| 3387 develop_pd(intx, CodeEntryAlignment, \ | |
| 3388 "Code entry alignment for generated code (in bytes)") \ | |
| 3389 \ | |
| 1365 | 3390 product_pd(intx, OptoLoopAlignment, \ |
| 3391 "Align inner loops to zero relative to this modulus") \ | |
| 3392 \ | |
| 0 | 3393 product_pd(uintx, InitialCodeCacheSize, \ |
| 3394 "Initial code cache size (in bytes)") \ | |
| 3395 \ | |
| 3396 product_pd(uintx, ReservedCodeCacheSize, \ | |
| 3397 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
| 3398 \ | |
| 3399 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
| 3400 "When less than X space left, we stop compiling.") \ | |
| 3401 \ | |
| 3402 product_pd(uintx, CodeCacheExpansionSize, \ | |
| 3403 "Code cache expansion size (in bytes)") \ | |
| 3404 \ | |
| 3405 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
| 3406 "Minimum number of segments in a code cache block.") \ | |
| 3407 \ | |
| 3408 notproduct(bool, ExitOnFullCodeCache, false, \ | |
| 3409 "Exit the VM if we fill the code cache.") \ | |
| 3410 \ | |
| 4039 | 3411 product(bool, UseCodeCacheFlushing, true, \ |
| 1202 | 3412 "Attempt to clean the code cache before shutting off compiler") \ |
| 3413 \ | |
| 3414 product(intx, MinCodeCacheFlushingInterval, 30, \ | |
| 3415 "Min number of seconds between code cache cleaning sessions") \ | |
| 3416 \ | |
| 3417 product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ | |
| 3418 "When less than X space left, start code cache cleaning") \ | |
| 3419 \ | |
| 0 | 3420 /* interpreter debugging */ \ |
| 3421 develop(intx, BinarySwitchThreshold, 5, \ | |
| 3422 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
| 3423 "switch") \ | |
| 3424 \ | |
| 3425 develop(intx, StopInterpreterAt, 0, \ | |
| 3426 "Stops interpreter execution at specified bytecode number") \ | |
| 3427 \ | |
| 3428 develop(intx, TraceBytecodesAt, 0, \ | |
| 3429 "Traces bytecodes starting with specified bytecode number") \ | |
| 3430 \ | |
| 3431 /* compiler interface */ \ | |
| 3432 develop(intx, CIStart, 0, \ | |
| 3433 "the id of the first compilation to permit") \ | |
| 3434 \ | |
| 3435 develop(intx, CIStop, -1, \ | |
| 3436 "the id of the last compilation to permit") \ | |
| 3437 \ | |
| 3438 develop(intx, CIStartOSR, 0, \ | |
| 3439 "the id of the first osr compilation to permit " \ | |
| 3440 "(CICountOSR must be on)") \ | |
| 3441 \ | |
| 3442 develop(intx, CIStopOSR, -1, \ | |
| 3443 "the id of the last osr compilation to permit " \ | |
| 3444 "(CICountOSR must be on)") \ | |
| 3445 \ | |
| 3446 develop(intx, CIBreakAtOSR, -1, \ | |
| 3447 "id of osr compilation to break at") \ | |
| 3448 \ | |
| 3449 develop(intx, CIBreakAt, -1, \ | |
| 3450 "id of compilation to break at") \ | |
| 3451 \ | |
| 3452 product(ccstrlist, CompileOnly, "", \ | |
| 3453 "List of methods (pkg/class.name) to restrict compilation to") \ | |
| 3454 \ | |
| 3455 product(ccstr, CompileCommandFile, NULL, \ | |
| 3456 "Read compiler commands from this file [.hotspot_compiler]") \ | |
| 3457 \ | |
| 3458 product(ccstrlist, CompileCommand, "", \ | |
| 3459 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
| 3460 \ | |
| 3461 product(bool, CICompilerCountPerCPU, false, \ | |
| 3462 "1 compiler thread for log(N CPUs)") \ | |
| 3463 \ | |
| 3464 develop(intx, CIFireOOMAt, -1, \ | |
| 3465 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
| 3466 "(non-negative value throws OOM after this many CI accesses " \ | |
| 3467 "in each compile)") \ | |
| 3468 \ | |
| 3469 develop(intx, CIFireOOMAtDelay, -1, \ | |
| 3470 "Wait for this many CI accesses to occur in all compiles before " \ | |
| 3471 "beginning to throw OutOfMemoryErrors in each compile") \ | |
| 3472 \ | |
|
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3473 notproduct(bool, CIObjectFactoryVerify, false, \ |
|
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3474 "enable potentially expensive verification in ciObjectFactory") \ |
|
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3475 \ |
| 0 | 3476 /* Priorities */ \ |
| 3477 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
| 3478 \ | |
| 3479 product(intx, ThreadPriorityPolicy, 0, \ | |
| 3480 "0 : Normal. "\ | |
| 3481 " VM chooses priorities that are appropriate for normal "\ | |
| 3482 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
| 3483 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
| 3484 " map to lower native priority values. On Windows applications"\ | |
| 3485 " are allowed to use higher native priorities. However, with "\ | |
| 3486 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
| 3487 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
| 3488 " interfere with system threads. On Linux thread priorities "\ | |
| 3489 " are ignored because the OS does not support static priority "\ | |
| 3490 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
| 3491 " non-root, non-realtime applications. "\ | |
| 3492 "1 : Aggressive. "\ | |
| 3493 " Java thread priorities map over to the entire range of "\ | |
| 3494 " native thread priorities. Higher Java thread priorities map "\ | |
| 3495 " to higher native thread priorities. This policy should be "\ | |
| 3496 " used with care, as sometimes it can cause performance "\ | |
| 3497 " degradation in the application and/or the entire system. On "\ | |
| 3498 " Linux this policy requires root privilege.") \ | |
| 3499 \ | |
| 3500 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
|
3501 "Print priority changes") \ |
| 0 | 3502 \ |
| 3503 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
|
3504 "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
|
3505 "specified (-1 means no change)") \ |
| 0 | 3506 \ |
| 3507 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
|
3508 "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
|
3509 "(-1 means no change)") \ |
| 0 | 3510 \ |
| 3511 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
|
3512 "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
|
3513 "(-1 means no change)") \ |
| 0 | 3514 \ |
| 3515 product(bool, CompilerThreadHintNoPreempt, true, \ | |
| 3516 "(Solaris only) Give compiler threads an extra quanta") \ | |
| 3517 \ | |
| 3518 product(bool, VMThreadHintNoPreempt, false, \ | |
| 3519 "(Solaris only) Give VM thread an extra quanta") \ | |
| 3520 \ | |
| 3521 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3522 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3523 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3524 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3525 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3526 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3527 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3528 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3529 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3530 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
| 3531 \ | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3532 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
|
3533 "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
|
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, UseCriticalCompilerThreadPriority, false, \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3536 "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
|
3537 \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3538 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
|
3539 "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
|
3540 \ |
| 0 | 3541 /* compiler debugging */ \ |
| 3542 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
| 3543 "First class to consider when using +CompileTheWorld") \ | |
| 3544 \ | |
| 3545 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
| 3546 "Last class to consider when using +CompileTheWorld") \ | |
| 3547 \ | |
| 3548 develop(intx, NewCodeParameter, 0, \ | |
| 3549 "Testing Only: Create a dedicated integer parameter before " \ | |
| 3550 "putback") \ | |
| 3551 \ | |
| 3552 /* new oopmap storage allocation */ \ | |
| 3553 develop(intx, MinOopMapAllocation, 8, \ | |
| 3554 "Minimum number of OopMap entries in an OopMapSet") \ | |
| 3555 \ | |
| 3556 /* Background Compilation */ \ | |
| 3557 develop(intx, LongCompileThreshold, 50, \ | |
| 3558 "Used with +TraceLongCompiles") \ | |
| 3559 \ | |
| 3560 product(intx, StarvationMonitorInterval, 200, \ | |
| 3561 "Pause between each check in ms") \ | |
| 3562 \ | |
| 3563 /* recompilation */ \ | |
| 3564 product_pd(intx, CompileThreshold, \ | |
| 3565 "number of interpreted method invocations before (re-)compiling") \ | |
| 3566 \ | |
| 3567 product_pd(intx, BackEdgeThreshold, \ | |
| 3568 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
| 3569 \ | |
| 1783 | 3570 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
| 3571 "Interpreter (tier 0) invocation notification frequency.") \ | |
| 3572 \ | |
| 3573 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
| 3574 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
| 3575 \ | |
| 3576 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
| 3577 "C1 with MDO profiling (tier 3) invocation notification " \ | |
| 3578 "frequency.") \ | |
| 3579 \ | |
|
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3580 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
|
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3581 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
|
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3582 \ |
| 1783 | 3583 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
| 3584 "Interpreter (tier 0) invocation notification frequency.") \ | |
| 3585 \ | |
| 3586 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
| 3587 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
| 3588 \ | |
| 3589 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
| 3590 "C1 with MDO profiling (tier 3) invocation notification " \ | |
| 3591 "frequency.") \ | |
| 3592 \ | |
| 3593 product(intx, Tier2CompileThreshold, 0, \ | |
| 3594 "threshold at which tier 2 compilation is invoked") \ | |
| 3595 \ | |
| 3596 product(intx, Tier2BackEdgeThreshold, 0, \ | |
| 3597 "Back edge threshold at which tier 2 compilation is invoked") \ | |
| 3598 \ | |
| 3599 product(intx, Tier3InvocationThreshold, 200, \ | |
| 3600 "Compile if number of method invocations crosses this " \ | |
| 3601 "threshold") \ | |
| 3602 \ | |
| 3603 product(intx, Tier3MinInvocationThreshold, 100, \ | |
| 3604 "Minimum invocation to compile at tier 3") \ | |
| 3605 \ | |
| 3606 product(intx, Tier3CompileThreshold, 2000, \ | |
| 3607 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
| 3608 "minimum must be satisfied.") \ | |
| 3609 \ | |
| 4819 | 3610 product(intx, Tier3BackEdgeThreshold, 60000, \ |
| 1783 | 3611 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
| 3612 \ | |
| 3613 product(intx, Tier4InvocationThreshold, 5000, \ | |
| 3614 "Compile if number of method invocations crosses this " \ | |
| 3615 "threshold") \ | |
| 3616 \ | |
| 3617 product(intx, Tier4MinInvocationThreshold, 600, \ | |
| 3618 "Minimum invocation to compile at tier 4") \ | |
| 3619 \ | |
| 3620 product(intx, Tier4CompileThreshold, 15000, \ | |
| 3621 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
| 3622 "minimum must be satisfied.") \ | |
| 3623 \ | |
| 3624 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
| 3625 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
| 3626 \ | |
| 3627 product(intx, Tier3DelayOn, 5, \ | |
| 3628 "If C2 queue size grows over this amount per compiler thread " \ | |
| 3629 "stop compiling at tier 3 and start compiling at tier 2") \ | |
| 3630 \ | |
| 3631 product(intx, Tier3DelayOff, 2, \ | |
| 3632 "If C2 queue size is less than this amount per compiler thread " \ | |
| 3633 "allow methods compiled at tier 2 transition to tier 3") \ | |
| 3634 \ | |
| 3635 product(intx, Tier3LoadFeedback, 5, \ | |
| 3636 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
| 3637 "reaches this amount per compiler thread") \ | |
| 3638 \ | |
| 3639 product(intx, Tier4LoadFeedback, 3, \ | |
| 3640 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
| 3641 "reaches this amount per compiler thread") \ | |
| 3642 \ | |
| 3643 product(intx, TieredCompileTaskTimeout, 50, \ | |
| 3644 "Kill compile task if method was not used within " \ | |
| 3645 "given timeout in milliseconds") \ | |
| 3646 \ | |
| 3647 product(intx, TieredStopAtLevel, 4, \ | |
| 3648 "Stop at given compilation level") \ | |
| 3649 \ | |
| 3650 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
| 3651 "Start profiling in interpreter if the counters exceed tier 3" \ | |
| 3652 "thresholds by the specified percentage") \ | |
| 3653 \ | |
| 3654 product(intx, TieredRateUpdateMinTime, 1, \ | |
| 3655 "Minimum rate sampling interval (in milliseconds)") \ | |
| 3656 \ | |
| 3657 product(intx, TieredRateUpdateMaxTime, 25, \ | |
| 3658 "Maximum rate sampling interval (in milliseconds)") \ | |
| 0 | 3659 \ |
| 3660 product_pd(bool, TieredCompilation, \ | |
| 1783 | 3661 "Enable tiered compilation") \ |
| 3662 \ | |
| 3663 product(bool, PrintTieredEvents, false, \ | |
| 3664 "Print tiered events notifications") \ | |
| 0 | 3665 \ |
| 3666 product(bool, StressTieredRuntime, false, \ | |
| 3667 "Alternate client and server compiler on compile requests") \ | |
| 3668 \ | |
| 3669 product_pd(intx, OnStackReplacePercentage, \ | |
| 3670 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
| 3671 "of CompileThreshold) before (re-)compiling OSR code") \ | |
| 3672 \ | |
| 3673 product(intx, InterpreterProfilePercentage, 33, \ | |
| 3674 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
| 3675 "of CompileThreshold) before profiling in the interpreter") \ | |
| 3676 \ | |
| 3677 develop(intx, MaxRecompilationSearchLength, 10, \ | |
| 3678 "max. # frames to inspect searching for recompilee") \ | |
| 3679 \ | |
| 3680 develop(intx, MaxInterpretedSearchLength, 3, \ | |
| 3681 "max. # interp. frames to skip when searching for recompilee") \ | |
| 3682 \ | |
| 3683 develop(intx, DesiredMethodLimit, 8000, \ | |
| 3684 "desired max. method size (in bytecodes) after inlining") \ | |
| 3685 \ | |
| 3686 develop(intx, HugeMethodLimit, 8000, \ | |
| 3687 "don't compile methods larger than this if " \ | |
| 3688 "+DontCompileHugeMethods") \ | |
| 3689 \ | |
| 3690 /* New JDK 1.4 reflection implementation */ \ | |
| 3691 \ | |
| 3692 develop(bool, UseNewReflection, true, \ | |
| 3693 "Temporary flag for transition to reflection based on dynamic " \ | |
| 3694 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
| 3695 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
| 3696 "changes were needed") \ | |
| 3697 \ | |
| 3698 develop(bool, VerifyReflectionBytecodes, false, \ | |
| 3699 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
| 3700 "in situations like that described in 4486457 or for " \ | |
| 3701 "constructors generated for serialization, so can not be enabled "\ | |
| 3702 "in product.") \ | |
| 3703 \ | |
| 3704 product(bool, ReflectionWrapResolutionErrors, true, \ | |
| 3705 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
| 3706 "in InvocationTargetException. See 6531596") \ | |
| 3707 \ | |
| 3708 \ | |
| 3709 develop(intx, FastSuperclassLimit, 8, \ | |
| 3710 "Depth of hardwired instanceof accelerator array") \ | |
| 3711 \ | |
| 3712 /* Properties for Java libraries */ \ | |
| 3713 \ | |
|
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6197
diff
changeset
|
3714 product(uintx, MaxDirectMemorySize, 0, \ |
| 0 | 3715 "Maximum total size of NIO direct-buffer allocations") \ |
| 3716 \ | |
| 3717 /* temporary developer defined flags */ \ | |
| 3718 \ | |
| 3719 diagnostic(bool, UseNewCode, false, \ | |
| 3720 "Testing Only: Use the new version while testing") \ | |
| 3721 \ | |
| 3722 diagnostic(bool, UseNewCode2, false, \ | |
| 3723 "Testing Only: Use the new version while testing") \ | |
| 3724 \ | |
| 3725 diagnostic(bool, UseNewCode3, false, \ | |
| 3726 "Testing Only: Use the new version while testing") \ | |
| 3727 \ | |
| 3728 /* flags for performance data collection */ \ | |
| 3729 \ | |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3730 product(bool, UsePerfData, falseInEmbedded, \ |
| 0 | 3731 "Flag to disable jvmstat instrumentation for performance testing" \ |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3732 "and problem isolation purposes.") \ |
| 0 | 3733 \ |
| 3734 product(bool, PerfDataSaveToFile, false, \ | |
| 3735 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
| 3736 \ | |
| 3737 product(ccstr, PerfDataSaveFile, NULL, \ | |
| 3738 "Save PerfData memory to the specified absolute pathname," \ | |
| 3739 "%p in the file name if present will be replaced by pid") \ | |
| 3740 \ | |
| 3741 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
| 3742 "Data sampling interval in milliseconds") \ | |
| 3743 \ | |
| 3744 develop(bool, PerfTraceDataCreation, false, \ | |
| 3745 "Trace creation of Performance Data Entries") \ | |
| 3746 \ | |
| 3747 develop(bool, PerfTraceMemOps, false, \ | |
| 3748 "Trace PerfMemory create/attach/detach calls") \ | |
| 3749 \ | |
| 3750 product(bool, PerfDisableSharedMem, false, \ | |
| 3751 "Store performance data in standard memory") \ | |
| 3752 \ | |
| 3753 product(intx, PerfDataMemorySize, 32*K, \ | |
| 3754 "Size of performance data memory region. Will be rounded " \ | |
| 3755 "up to a multiple of the native os page size.") \ | |
| 3756 \ | |
| 3757 product(intx, PerfMaxStringConstLength, 1024, \ | |
| 3758 "Maximum PerfStringConstant string length before truncation") \ | |
| 3759 \ | |
| 3760 product(bool, PerfAllowAtExitRegistration, false, \ | |
| 3761 "Allow registration of atexit() methods") \ | |
| 3762 \ | |
| 3763 product(bool, PerfBypassFileSystemCheck, false, \ | |
| 3764 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
| 3765 \ | |
| 3766 product(intx, UnguardOnExecutionViolation, 0, \ | |
| 3767 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
| 3768 "0=off, 1=conservative, 2=aggressive") \ | |
| 3769 \ | |
| 3770 /* Serviceability Support */ \ | |
| 3771 \ | |
| 3772 product(bool, ManagementServer, false, \ | |
| 3773 "Create JMX Management Server") \ | |
| 3774 \ | |
| 3775 product(bool, DisableAttachMechanism, false, \ | |
| 3776 "Disable mechanism that allows tools to attach to this VM") \ | |
| 3777 \ | |
| 3778 product(bool, StartAttachListener, false, \ | |
| 3779 "Always start Attach Listener at VM startup") \ | |
| 3780 \ | |
| 3781 manageable(bool, PrintConcurrentLocks, false, \ | |
| 3782 "Print java.util.concurrent locks in thread dump") \ | |
| 3783 \ | |
|
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3784 product(bool, TransmitErrorReport, false, \ |
|
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3785 "Enable error report transmission on erroneous termination") \ |
|
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3786 \ |
|
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3787 product(ccstr, ErrorReportServer, NULL, \ |
|
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3788 "Override built-in error report server address") \ |
|
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3789 \ |
| 0 | 3790 /* Shared spaces */ \ |
| 3791 \ | |
| 3792 product(bool, UseSharedSpaces, true, \ | |
| 3793 "Use shared spaces in the permanent generation") \ | |
| 3794 \ | |
| 3795 product(bool, RequireSharedSpaces, false, \ | |
| 3796 "Require shared spaces in the permanent generation") \ | |
| 3797 \ | |
| 3798 product(bool, DumpSharedSpaces, false, \ | |
| 3799 "Special mode: JVM reads a class list, loads classes, builds " \ | |
| 3800 "shared spaces, and dumps the shared spaces to a file to be " \ | |
| 3801 "used in future JVM runs.") \ | |
| 3802 \ | |
| 3803 product(bool, PrintSharedSpaces, false, \ | |
| 3804 "Print usage of shared spaces") \ | |
| 3805 \ | |
| 3806 product(uintx, SharedDummyBlockSize, 512*M, \ | |
| 3807 "Size of dummy block used to shift heap addresses (in bytes)") \ | |
| 3808 \ | |
| 1875 | 3809 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(13*M), \ |
| 0 | 3810 "Size of read-write space in permanent generation (in bytes)") \ |
| 3811 \ | |
|
910
10d8c0d0d60e
6867645: java -Xshare:dump failed - read only space too small
jcoomes
parents:
909
diff
changeset
|
3812 product(uintx, SharedReadOnlySize, 10*M, \ |
| 0 | 3813 "Size of read-only space in permanent generation (in bytes)") \ |
| 3814 \ | |
|
5979
fc9d8850ab8b
7150058: Allocate symbols from null boot loader to an arena for NMT
coleenp
parents:
5947
diff
changeset
|
3815 product(uintx, SharedMiscDataSize, NOT_LP64(4*M) LP64_ONLY(5*M) NOT_PRODUCT(+1*M), \ |
| 0 | 3816 "Size of the shared data area adjacent to the heap (in bytes)") \ |
| 3817 \ | |
| 3818 product(uintx, SharedMiscCodeSize, 4*M, \ | |
| 3819 "Size of the shared code area adjacent to the heap (in bytes)") \ | |
| 3820 \ | |
| 3821 diagnostic(bool, SharedOptimizeColdStart, true, \ | |
| 3822 "At dump time, order shared objects to achieve better " \ | |
| 3823 "cold startup time.") \ | |
| 3824 \ | |
| 3825 develop(intx, SharedOptimizeColdStartPolicy, 2, \ | |
| 3826 "Reordering policy for SharedOptimizeColdStart " \ | |
| 3827 "0=favor classload-time locality, 1=balanced, " \ | |
| 3828 "2=favor runtime locality") \ | |
| 3829 \ | |
| 3830 diagnostic(bool, SharedSkipVerify, false, \ | |
| 3831 "Skip assert() and verify() which page-in unwanted shared " \ | |
| 3832 "objects. ") \ | |
| 3833 \ | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3834 diagnostic(bool, EnableInvokeDynamic, true, \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3835 "support JSR 292 (method handles, invokedynamic, " \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3836 "anonymous classes") \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
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|
3837 \ |
|
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
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|
3838 product(bool, AnonymousClasses, false, \ |
|
2416
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6817525: turn on method handle functionality by default for JSR 292
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|
3839 "support sun.misc.Unsafe.defineAnonymousClass (deprecated)") \ |
|
431
a45484ea312d
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jrose
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diff
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|
3840 \ |
|
3757
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3841 diagnostic(bool, PrintMethodHandleStubs, false, \ |
|
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
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parents:
3745
diff
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|
3842 "Print generated stub code for method handles") \ |
|
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
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parents:
3745
diff
changeset
|
3843 \ |
| 710 | 3844 develop(bool, TraceMethodHandles, false, \ |
| 3845 "trace internal method handle operations") \ | |
| 3846 \ | |
| 3847 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
| 3848 "perform extra checks when constructing method handles") \ | |
| 3849 \ | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6199
diff
changeset
|
3850 diagnostic(bool, ShowHiddenFrames, false, \ |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6199
diff
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|
3851 "show method handle implementation frames (usually hidden)") \ |
|
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3852 \ |
|
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3853 experimental(bool, TrustFinalNonStaticFields, false, \ |
|
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3854 "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
|
3855 \ |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3856 develop(bool, TraceInvokeDynamic, false, \ |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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712
diff
changeset
|
3857 "trace internal invoke dynamic operations") \ |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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diff
changeset
|
3858 \ |
| 0 | 3859 diagnostic(bool, PauseAtStartup, false, \ |
| 3860 "Causes the VM to pause at startup time and wait for the pause " \ | |
| 3861 "file to be removed (default: ./vm.paused.<pid>)") \ | |
| 3862 \ | |
| 3863 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
| 3864 "The file to create and for whose removal to await when pausing " \ | |
| 3865 "at startup. (default: ./vm.paused.<pid>)") \ | |
| 3866 \ | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3867 diagnostic(bool, PauseAtExit, false, \ |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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2265
diff
changeset
|
3868 "Pause and wait for keypress on exit if a debugger is attached") \ |
|
da091bb67459
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2265
diff
changeset
|
3869 \ |
| 0 | 3870 product(bool, ExtendedDTraceProbes, false, \ |
| 3871 "Enable performance-impacting dtrace probes") \ | |
| 3872 \ | |
| 3873 product(bool, DTraceMethodProbes, false, \ | |
| 3874 "Enable dtrace probes for method-entry and method-exit") \ | |
| 3875 \ | |
| 3876 product(bool, DTraceAllocProbes, false, \ | |
| 3877 "Enable dtrace probes for object allocation") \ | |
| 3878 \ | |
| 3879 product(bool, DTraceMonitorProbes, false, \ | |
| 3880 "Enable dtrace probes for monitor events") \ | |
| 3881 \ | |
| 3882 product(bool, RelaxAccessControlCheck, false, \ | |
| 3883 "Relax the access control checks in the verifier") \ | |
| 3884 \ | |
|
116
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kamg
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diff
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|
3885 diagnostic(bool, PrintDTraceDOF, false, \ |
|
018d5b58dd4f
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diff
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|
3886 "Print the DTrace DOF passed to the system for JSDT probes") \ |
|
018d5b58dd4f
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kamg
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113
diff
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|
3887 \ |
| 2378 | 3888 product(uintx, StringTableSize, 1009, \ |
| 3889 "Number of buckets in the interned String table") \ | |
| 3890 \ | |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3891 product(bool, UseVMInterruptibleIO, false, \ |
| 0 | 3892 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3893 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
| 5915 | 3894 " of this flag is true for JDK 6 and earlier") \ |
| 3895 \ | |
| 3896 diagnostic(bool, WhiteBoxAPI, false, \ | |
|
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3897 "Enable internal testing APIs") \ |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
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5979
diff
changeset
|
3898 \ |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
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5979
diff
changeset
|
3899 product(bool, PrintGCCause, true, \ |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
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5979
diff
changeset
|
3900 "Include GC cause in GC logging") |
| 0 | 3901 |
| 3902 /* | |
| 3903 * Macros for factoring of globals | |
| 3904 */ | |
| 3905 | |
| 3906 // Interface macros | |
| 3907 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
| 3908 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; | |
| 3909 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; | |
|
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
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348
diff
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|
3910 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
| 0 | 3911 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
| 3912 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; | |
| 3913 #ifdef PRODUCT | |
| 3914 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; | |
| 3915 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; | |
| 3916 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) | |
| 3917 #else | |
| 3918 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; | |
| 3919 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; | |
| 3920 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
| 3921 #endif | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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109
diff
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|
3922 // Special LP64 flags, product only needed for now. |
|
ba764ed4b6f2
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109
diff
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|
3923 #ifdef _LP64 |
|
ba764ed4b6f2
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109
diff
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|
3924 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
|
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|
3925 #else |
|
ba764ed4b6f2
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coleenp
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109
diff
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|
3926 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
|
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diff
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|
3927 #endif // _LP64 |
| 0 | 3928 |
| 3929 // Implementation macros | |
| 3930 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; | |
| 3931 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; | |
| 3932 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; | |
|
350
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|
3933 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
| 0 | 3934 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
| 3935 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; | |
| 3936 #ifdef PRODUCT | |
| 3937 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ | |
| 3938 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ | |
| 3939 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) | |
| 3940 #else | |
| 3941 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; | |
| 3942 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; | |
| 3943 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; | |
| 3944 #endif | |
|
113
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109
diff
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|
3945 #ifdef _LP64 |
|
ba764ed4b6f2
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109
diff
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|
3946 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
|
ba764ed4b6f2
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diff
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|
3947 #else |
|
ba764ed4b6f2
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coleenp
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109
diff
changeset
|
3948 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
|
ba764ed4b6f2
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diff
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|
3949 #endif // _LP64 |
| 0 | 3950 |
|
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
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|
3951 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 | 3952 |
| 3953 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
| 1972 | 3954 |
|
4107
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3955 // Extensions |
|
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3956 |
|
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3957 #include "runtime/globals_ext.hpp" |
|
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3958 |
| 1972 | 3959 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |