Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/globals.hpp @ 4868:5f17b16b3219
7141059: 7116795 broke pure c2 builds
Summary: Fix pure c2 builds
Reviewed-by: kvn, brutisso, never
| author | iveresov |
|---|---|
| date | Mon, 30 Jan 2012 19:37:14 -0800 |
| parents | dddf0be88eb1 |
| children | aa3d708d67c4 |
| 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 | |
| 194 // string type aliases used only in this file | |
| 195 typedef const char* ccstr; | |
| 196 typedef const char* ccstrlist; // represents string arguments which accumulate | |
| 197 | |
| 198 enum FlagValueOrigin { | |
| 199 DEFAULT = 0, | |
| 200 COMMAND_LINE = 1, | |
| 201 ENVIRON_VAR = 2, | |
| 202 CONFIG_FILE = 3, | |
| 203 MANAGEMENT = 4, | |
| 204 ERGONOMIC = 5, | |
| 205 ATTACH_ON_DEMAND = 6, | |
| 206 INTERNAL = 99 | |
| 207 }; | |
| 208 | |
| 209 struct Flag { | |
| 210 const char *type; | |
| 211 const char *name; | |
| 212 void* addr; | |
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213 |
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214 NOT_PRODUCT(const char *doc;) |
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215 |
| 0 | 216 const char *kind; |
| 217 FlagValueOrigin origin; | |
| 218 | |
| 219 // points to all Flags static array | |
| 220 static Flag *flags; | |
| 221 | |
| 222 // number of flags | |
| 223 static size_t numFlags; | |
| 224 | |
| 225 static Flag* find_flag(char* name, size_t length); | |
| 226 | |
| 227 bool is_bool() const { return strcmp(type, "bool") == 0; } | |
| 228 bool get_bool() const { return *((bool*) addr); } | |
| 229 void set_bool(bool value) { *((bool*) addr) = value; } | |
| 230 | |
| 231 bool is_intx() const { return strcmp(type, "intx") == 0; } | |
| 232 intx get_intx() const { return *((intx*) addr); } | |
| 233 void set_intx(intx value) { *((intx*) addr) = value; } | |
| 234 | |
| 235 bool is_uintx() const { return strcmp(type, "uintx") == 0; } | |
| 236 uintx get_uintx() const { return *((uintx*) addr); } | |
| 237 void set_uintx(uintx value) { *((uintx*) addr) = value; } | |
| 238 | |
| 1064 | 239 bool is_uint64_t() const { return strcmp(type, "uint64_t") == 0; } |
| 240 uint64_t get_uint64_t() const { return *((uint64_t*) addr); } | |
| 241 void set_uint64_t(uint64_t value) { *((uint64_t*) addr) = value; } | |
| 242 | |
| 0 | 243 bool is_double() const { return strcmp(type, "double") == 0; } |
| 244 double get_double() const { return *((double*) addr); } | |
| 245 void set_double(double value) { *((double*) addr) = value; } | |
| 246 | |
| 247 bool is_ccstr() const { return strcmp(type, "ccstr") == 0 || strcmp(type, "ccstrlist") == 0; } | |
| 248 bool ccstr_accumulates() const { return strcmp(type, "ccstrlist") == 0; } | |
| 249 ccstr get_ccstr() const { return *((ccstr*) addr); } | |
| 250 void set_ccstr(ccstr value) { *((ccstr*) addr) = value; } | |
| 251 | |
| 252 bool is_unlocker() const; | |
| 253 bool is_unlocked() const; | |
| 254 bool is_writeable() const; | |
| 255 bool is_external() const; | |
| 256 | |
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257 bool is_unlocker_ext() const; |
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258 bool is_unlocked_ext() const; |
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259 bool is_writeable_ext() const; |
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260 bool is_external_ext() const; |
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261 |
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262 void print_on(outputStream* st, bool withComments = false ); |
| 0 | 263 void print_as_flag(outputStream* st); |
| 264 }; | |
| 265 | |
| 266 // debug flags control various aspects of the VM and are global accessible | |
| 267 | |
| 268 // use FlagSetting to temporarily change some debug flag | |
| 269 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
| 270 // restored to previous value upon leaving scope | |
| 271 class FlagSetting { | |
| 272 bool val; | |
| 273 bool* flag; | |
| 274 public: | |
| 275 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
| 276 ~FlagSetting() { *flag = val; } | |
| 277 }; | |
| 278 | |
| 279 | |
| 280 class CounterSetting { | |
| 281 intx* counter; | |
| 282 public: | |
| 283 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
| 284 ~CounterSetting() { (*counter)--; } | |
| 285 }; | |
| 286 | |
| 287 | |
| 288 class IntFlagSetting { | |
| 289 intx val; | |
| 290 intx* flag; | |
| 291 public: | |
| 292 IntFlagSetting(intx& fl, intx newValue) { flag = &fl; val = fl; fl = newValue; } | |
| 293 ~IntFlagSetting() { *flag = val; } | |
| 294 }; | |
| 295 | |
| 296 | |
| 297 class DoubleFlagSetting { | |
| 298 double val; | |
| 299 double* flag; | |
| 300 public: | |
| 301 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
| 302 ~DoubleFlagSetting() { *flag = val; } | |
| 303 }; | |
| 304 | |
| 305 | |
| 306 class CommandLineFlags { | |
| 307 public: | |
| 308 static bool boolAt(char* name, size_t len, bool* value); | |
| 309 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
| 310 static bool boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin); | |
| 311 static bool boolAtPut(char* name, bool* value, FlagValueOrigin origin) { return boolAtPut(name, strlen(name), value, origin); } | |
| 312 | |
| 313 static bool intxAt(char* name, size_t len, intx* value); | |
| 314 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
| 315 static bool intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin); | |
| 316 static bool intxAtPut(char* name, intx* value, FlagValueOrigin origin) { return intxAtPut(name, strlen(name), value, origin); } | |
| 317 | |
| 318 static bool uintxAt(char* name, size_t len, uintx* value); | |
| 319 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
| 320 static bool uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin); | |
| 321 static bool uintxAtPut(char* name, uintx* value, FlagValueOrigin origin) { return uintxAtPut(name, strlen(name), value, origin); } | |
| 322 | |
| 1064 | 323 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
| 324 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
| 325 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin); | |
| 326 static bool uint64_tAtPut(char* name, uint64_t* value, FlagValueOrigin origin) { return uint64_tAtPut(name, strlen(name), value, origin); } | |
| 327 | |
| 0 | 328 static bool doubleAt(char* name, size_t len, double* value); |
| 329 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
| 330 static bool doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin); | |
| 331 static bool doubleAtPut(char* name, double* value, FlagValueOrigin origin) { return doubleAtPut(name, strlen(name), value, origin); } | |
| 332 | |
| 333 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
| 334 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
| 335 static bool ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin); | |
| 336 static bool ccstrAtPut(char* name, ccstr* value, FlagValueOrigin origin) { return ccstrAtPut(name, strlen(name), value, origin); } | |
| 337 | |
| 338 // Returns false if name is not a command line flag. | |
| 339 static bool wasSetOnCmdline(const char* name, bool* value); | |
| 4773 | 340 static void printSetFlags(outputStream* out); |
| 0 | 341 |
| 4773 | 342 static void printFlags(outputStream* out, bool withComments); |
| 0 | 343 |
| 344 static void verify() PRODUCT_RETURN; | |
| 345 }; | |
| 346 | |
| 347 // use this for flags that are true by default in the debug version but | |
| 348 // false in the optimized version, and vice versa | |
| 349 #ifdef ASSERT | |
| 350 #define trueInDebug true | |
| 351 #define falseInDebug false | |
| 352 #else | |
| 353 #define trueInDebug false | |
| 354 #define falseInDebug true | |
| 355 #endif | |
| 356 | |
| 357 // use this for flags that are true per default in the product build | |
| 358 // but false in development builds, and vice versa | |
| 359 #ifdef PRODUCT | |
| 360 #define trueInProduct true | |
| 361 #define falseInProduct false | |
| 362 #else | |
| 363 #define trueInProduct false | |
| 364 #define falseInProduct true | |
| 365 #endif | |
| 366 | |
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367 #ifdef JAVASE_EMBEDDED |
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368 #define falseInEmbedded false |
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369 #else |
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370 #define falseInEmbedded true |
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371 #endif |
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372 |
| 0 | 373 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
| 374 // product flags are always settable / visible | |
| 375 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
| 376 | |
| 377 // A flag must be declared with one of the following types: | |
| 378 // bool, intx, uintx, ccstr. | |
| 379 // The type "ccstr" is an alias for "const char*" and is used | |
| 380 // only in this file, because the macrology requires single-token type names. | |
| 381 | |
| 382 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
| 383 // They are to be used for VM quality assurance or field diagnosis | |
| 384 // of VM bugs. They are hidden so that users will not be encouraged to | |
| 385 // try them as if they were VM ordinary execution options. However, they | |
| 386 // are available in the product version of the VM. Under instruction | |
| 387 // from support engineers, VM customers can turn them on to collect | |
| 388 // diagnostic information about VM problems. To use a VM diagnostic | |
| 389 // option, you must first specify +UnlockDiagnosticVMOptions. | |
| 390 // (This master switch also affects the behavior of -Xprintflags.) | |
|
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391 // |
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392 // experimental flags are in support of features that are not |
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393 // part of the officially supported product, but are available |
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394 // for experimenting with. They could, for example, be performance |
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395 // features that may not have undergone full or rigorous QA, but which may |
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396 // help performance in some cases and released for experimentation |
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397 // by the community of users and developers. This flag also allows one to |
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398 // be able to build a fully supported product that nonetheless also |
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399 // ships with some unsupported, lightly tested, experimental features. |
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400 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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401 // UnlockExperimentalVMOptions flag, which allows the control and |
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402 // modification of the experimental flags. |
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403 // |
|
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404 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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405 // and they are not supported on production loads, except under explicit |
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406 // direction from support engineers. |
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407 // |
| 0 | 408 // manageable flags are writeable external product flags. |
| 409 // They are dynamically writeable through the JDK management interface | |
| 410 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
| 411 // These flags are external exported interface (see CCC). The list of | |
| 412 // manageable flags can be queried programmatically through the management | |
| 413 // interface. | |
| 414 // | |
| 415 // A flag can be made as "manageable" only if | |
| 416 // - the flag is defined in a CCC as an external exported interface. | |
| 417 // - the VM implementation supports dynamic setting of the flag. | |
| 418 // This implies that the VM must *always* query the flag variable | |
| 419 // and not reuse state related to the flag state at any given time. | |
| 420 // - you want the flag to be queried programmatically by the customers. | |
| 421 // | |
| 422 // product_rw flags are writeable internal product flags. | |
| 423 // They are like "manageable" flags but for internal/private use. | |
| 424 // The list of product_rw flags are internal/private flags which | |
| 425 // may be changed/removed in a future release. It can be set | |
| 426 // through the management interface to get/set value | |
| 427 // when the name of flag is supplied. | |
| 428 // | |
| 429 // A flag can be made as "product_rw" only if | |
| 430 // - the VM implementation supports dynamic setting of the flag. | |
| 431 // This implies that the VM must *always* query the flag variable | |
| 432 // and not reuse state related to the flag state at any given time. | |
| 433 // | |
| 434 // Note that when there is a need to support develop flags to be writeable, | |
| 435 // it can be done in the same way as product_rw. | |
| 436 | |
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437 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
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438 \ |
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439 lp64_product(bool, UseCompressedOops, false, \ |
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440 "Use 32-bit object references in 64-bit VM. " \ |
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441 "lp64_product means flag is always constant in 32 bit VM") \ |
| 0 | 442 \ |
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443 notproduct(bool, CheckCompressedOops, true, \ |
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444 "generate checks in encoding/decoding code in debug VM") \ |
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445 \ |
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446 product_pd(uintx, HeapBaseMinAddress, \ |
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447 "OS specific low limit for heap base address") \ |
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448 \ |
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449 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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450 "Print compressed oops base address and encoding mode") \ |
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451 \ |
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452 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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453 "Default object alignment in bytes, 8 is minimum") \ |
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454 \ |
| 0 | 455 /* UseMembar is theoretically a temp flag used for memory barrier \ |
| 456 * removal testing. It was supposed to be removed before FCS but has \ | |
| 457 * been re-added (see 6401008) */ \ | |
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458 product_pd(bool, UseMembar, \ |
| 0 | 459 "(Unstable) Issues membars on thread state transitions") \ |
| 460 \ | |
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461 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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462 * that don't support it. This will be replaced by processor detection \ |
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463 * logic. \ |
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464 */ \ |
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465 product(bool, UsePPCLWSYNC, true, \ |
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466 "Use lwsync instruction if true, else use slower sync") \ |
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467 \ |
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468 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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469 "Whether to clean the chunk pool asynchronously") \ |
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470 \ |
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471 /* Temporary: See 6948537 */ \ |
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472 experimental(bool, UseMemSetInBOT, true, \ |
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473 "(Unstable) uses memset in BOT updates in GC code") \ |
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474 \ |
| 0 | 475 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
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476 "Enable normal processing of flags relating to field diagnostics")\ |
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477 \ |
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478 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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479 "Enable normal processing of flags relating to experimental features")\ |
| 0 | 480 \ |
| 481 product(bool, JavaMonitorsInStackTrace, true, \ | |
| 482 "Print info. about Java monitor locks when the stacks are dumped")\ | |
| 483 \ | |
| 484 product_pd(bool, UseLargePages, \ | |
| 485 "Use large page memory") \ | |
| 486 \ | |
|
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487 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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488 "Allocate large pages individually for better affinity") \ |
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489 \ |
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490 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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491 "Fail large pages individual allocation") \ |
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492 \ |
| 0 | 493 develop(bool, TracePageSizes, false, \ |
| 494 "Trace page size selection and usage.") \ | |
| 495 \ | |
| 496 product(bool, UseNUMA, false, \ | |
| 497 "Use NUMA if available") \ | |
| 498 \ | |
| 3885 | 499 product(bool, UseNUMAInterleaving, false, \ |
| 500 "Interleave memory across NUMA nodes if available") \ | |
| 501 \ | |
| 502 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
| 503 "Granularity to use for NUMA interleaving on Windows OS") \ | |
| 504 \ | |
|
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505 product(bool, ForceNUMA, false, \ |
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506 "Force NUMA optimizations on single-node/UMA systems") \ |
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507 \ |
| 0 | 508 product(intx, NUMAChunkResizeWeight, 20, \ |
| 509 "Percentage (0-100) used to weight the current sample when " \ | |
| 510 "computing exponentially decaying average for " \ | |
| 511 "AdaptiveNUMAChunkSizing") \ | |
| 512 \ | |
| 513 product(intx, NUMASpaceResizeRate, 1*G, \ | |
| 514 "Do not reallocate more that this amount per collection") \ | |
| 515 \ | |
| 516 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
| 517 "Enable adaptive chunk sizing for NUMA") \ | |
| 518 \ | |
| 519 product(bool, NUMAStats, false, \ | |
| 520 "Print NUMA stats in detailed heap information") \ | |
| 521 \ | |
| 522 product(intx, NUMAPageScanRate, 256, \ | |
| 523 "Maximum number of pages to include in the page scan procedure") \ | |
| 524 \ | |
| 525 product_pd(bool, NeedsDeoptSuspend, \ | |
| 526 "True for register window machines (sparc/ia64)") \ | |
| 527 \ | |
| 528 product(intx, UseSSE, 99, \ | |
| 529 "Highest supported SSE instructions set on x86/x64") \ | |
| 530 \ | |
| 4759 | 531 product(intx, UseAVX, 99, \ |
| 532 "Highest supported AVX instructions set on x86/x64") \ | |
| 533 \ | |
| 3804 | 534 product(intx, UseVIS, 99, \ |
| 535 "Highest supported VIS instructions set on Sparc") \ | |
| 536 \ | |
| 0 | 537 product(uintx, LargePageSizeInBytes, 0, \ |
| 538 "Large page size (0 to let VM choose the page size") \ | |
| 539 \ | |
| 540 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
| 541 "Use large pages if max heap is at least this big") \ | |
| 542 \ | |
| 543 product(bool, ForceTimeHighResolution, false, \ | |
| 544 "Using high time resolution(For Win32 only)") \ | |
| 545 \ | |
| 546 develop(bool, TraceItables, false, \ | |
| 547 "Trace initialization and use of itables") \ | |
| 548 \ | |
| 549 develop(bool, TracePcPatching, false, \ | |
| 550 "Trace usage of frame::patch_pc") \ | |
| 551 \ | |
| 552 develop(bool, TraceJumps, false, \ | |
| 553 "Trace assembly jumps in thread ring buffer") \ | |
| 554 \ | |
| 555 develop(bool, TraceRelocator, false, \ | |
| 556 "Trace the bytecode relocator") \ | |
| 557 \ | |
| 558 develop(bool, TraceLongCompiles, false, \ | |
| 559 "Print out every time compilation is longer than " \ | |
| 560 "a given threashold") \ | |
| 561 \ | |
| 562 develop(bool, SafepointALot, false, \ | |
| 563 "Generates a lot of safepoints. Works with " \ | |
| 564 "GuaranteedSafepointInterval") \ | |
| 565 \ | |
| 566 product_pd(bool, BackgroundCompilation, \ | |
| 567 "A thread requesting compilation is not blocked during " \ | |
| 568 "compilation") \ | |
| 569 \ | |
| 570 product(bool, PrintVMQWaitTime, false, \ | |
| 571 "Prints out the waiting time in VM operation queue") \ | |
| 572 \ | |
| 573 develop(bool, BailoutToInterpreterForThrows, false, \ | |
| 574 "Compiled methods which throws/catches exceptions will be " \ | |
| 575 "deopt and intp.") \ | |
| 576 \ | |
| 577 develop(bool, NoYieldsInMicrolock, false, \ | |
| 578 "Disable yields in microlock") \ | |
| 579 \ | |
| 580 develop(bool, TraceOopMapGeneration, false, \ | |
| 581 "Shows oopmap generation") \ | |
| 582 \ | |
| 583 product(bool, MethodFlushing, true, \ | |
| 584 "Reclamation of zombie and not-entrant methods") \ | |
| 585 \ | |
| 586 develop(bool, VerifyStack, false, \ | |
| 587 "Verify stack of each thread when it is entering a runtime call") \ | |
| 588 \ | |
|
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589 diagnostic(bool, ForceUnreachable, false, \ |
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590 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ |
| 0 | 591 \ |
| 592 notproduct(bool, StressDerivedPointers, false, \ | |
| 593 "Force scavenge when a derived pointers is detected on stack " \ | |
| 594 "after rtm call") \ | |
| 595 \ | |
| 596 develop(bool, TraceDerivedPointers, false, \ | |
| 597 "Trace traversal of derived pointers on stack") \ | |
| 598 \ | |
| 599 notproduct(bool, TraceCodeBlobStacks, false, \ | |
| 600 "Trace stack-walk of codeblobs") \ | |
| 601 \ | |
| 602 product(bool, PrintJNIResolving, false, \ | |
| 603 "Used to implement -v:jni") \ | |
| 604 \ | |
| 605 notproduct(bool, PrintRewrites, false, \ | |
| 606 "Print methods that are being rewritten") \ | |
| 607 \ | |
| 608 product(bool, UseInlineCaches, true, \ | |
| 609 "Use Inline Caches for virtual calls ") \ | |
| 610 \ | |
| 611 develop(bool, InlineArrayCopy, true, \ | |
| 612 "inline arraycopy native that is known to be part of " \ | |
| 613 "base library DLL") \ | |
| 614 \ | |
| 615 develop(bool, InlineObjectHash, true, \ | |
| 616 "inline Object::hashCode() native that is known to be part " \ | |
| 617 "of base library DLL") \ | |
| 618 \ | |
| 619 develop(bool, InlineObjectCopy, true, \ | |
| 620 "inline Object.clone and Arrays.copyOf[Range] intrinsics") \ | |
| 621 \ | |
| 622 develop(bool, InlineNatives, true, \ | |
| 623 "inline natives that are known to be part of base library DLL") \ | |
| 624 \ | |
| 625 develop(bool, InlineMathNatives, true, \ | |
| 626 "inline SinD, CosD, etc.") \ | |
| 627 \ | |
| 628 develop(bool, InlineClassNatives, true, \ | |
| 629 "inline Class.isInstance, etc") \ | |
| 630 \ | |
| 631 develop(bool, InlineAtomicLong, true, \ | |
| 632 "inline sun.misc.AtomicLong") \ | |
| 633 \ | |
| 634 develop(bool, InlineThreadNatives, true, \ | |
| 635 "inline Thread.currentThread, etc") \ | |
| 636 \ | |
| 637 develop(bool, InlineReflectionGetCallerClass, true, \ | |
| 638 "inline sun.reflect.Reflection.getCallerClass(), known to be part "\ | |
| 639 "of base library DLL") \ | |
| 640 \ | |
| 641 develop(bool, InlineUnsafeOps, true, \ | |
| 642 "inline memory ops (native methods) from sun.misc.Unsafe") \ | |
| 643 \ | |
| 644 develop(bool, ConvertCmpD2CmpF, true, \ | |
| 645 "Convert cmpD to cmpF when one input is constant in float range") \ | |
| 646 \ | |
| 647 develop(bool, ConvertFloat2IntClipping, true, \ | |
| 648 "Convert float2int clipping idiom to integer clipping") \ | |
| 649 \ | |
| 650 develop(bool, SpecialStringCompareTo, true, \ | |
| 651 "special version of string compareTo") \ | |
| 652 \ | |
| 653 develop(bool, SpecialStringIndexOf, true, \ | |
| 654 "special version of string indexOf") \ | |
| 655 \ | |
| 681 | 656 develop(bool, SpecialStringEquals, true, \ |
| 657 "special version of string equals") \ | |
| 658 \ | |
| 659 develop(bool, SpecialArraysEquals, true, \ | |
|
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660 "special version of Arrays.equals(char[],char[])") \ |
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661 \ |
| 681 | 662 product(bool, UseSSE42Intrinsics, false, \ |
| 663 "SSE4.2 versions of intrinsics") \ | |
| 664 \ | |
| 3282 | 665 product(bool, UseCondCardMark, false, \ |
| 666 "Check for already marked card before updating card table") \ | |
| 667 \ | |
| 0 | 668 develop(bool, TraceCallFixup, false, \ |
| 669 "traces all call fixups") \ | |
| 670 \ | |
| 671 develop(bool, DeoptimizeALot, false, \ | |
| 672 "deoptimize at every exit from the runtime system") \ | |
| 673 \ | |
| 434 | 674 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
| 0 | 675 "a comma separated list of bcis to deoptimize at") \ |
| 676 \ | |
| 677 product(bool, DeoptimizeRandom, false, \ | |
| 678 "deoptimize random frames on random exit from the runtime system")\ | |
| 679 \ | |
| 680 notproduct(bool, ZombieALot, false, \ | |
| 681 "creates zombies (non-entrant) at exit from the runt. system") \ | |
| 682 \ | |
|
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683 product(bool, UnlinkSymbolsALot, false, \ |
|
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684 "unlink unreferenced symbols from the symbol table at safepoints")\ |
|
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685 \ |
| 0 | 686 notproduct(bool, WalkStackALot, false, \ |
| 687 "trace stack (no print) at every exit from the runtime system") \ | |
| 688 \ | |
| 4006 | 689 product(bool, Debugging, false, \ |
| 0 | 690 "set when executing debug methods in debug.ccp " \ |
| 691 "(to prevent triggering assertions)") \ | |
| 692 \ | |
| 693 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
| 694 "Enable strict checks that safepoints cannot happen for threads " \ | |
| 695 "that used No_Safepoint_Verifier") \ | |
| 696 \ | |
| 697 notproduct(bool, VerifyLastFrame, false, \ | |
| 698 "Verify oops on last frame on entry to VM") \ | |
| 699 \ | |
| 700 develop(bool, TraceHandleAllocation, false, \ | |
| 701 "Prints out warnings when suspicious many handles are allocated") \ | |
| 702 \ | |
| 703 product(bool, UseCompilerSafepoints, true, \ | |
| 704 "Stop at safepoints in compiled code") \ | |
| 705 \ | |
| 706 product(bool, UseSplitVerifier, true, \ | |
| 707 "use split verifier with StackMapTable attributes") \ | |
| 708 \ | |
| 709 product(bool, FailOverToOldVerifier, true, \ | |
| 710 "fail over to old verifier when split verifier fails") \ | |
| 711 \ | |
| 712 develop(bool, ShowSafepointMsgs, false, \ | |
| 713 "Show msg. about safepoint synch.") \ | |
| 714 \ | |
| 715 product(bool, SafepointTimeout, false, \ | |
| 716 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
| 717 "milliseconds if failed to reach safepoint") \ | |
| 718 \ | |
| 719 develop(bool, DieOnSafepointTimeout, false, \ | |
| 720 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
| 721 \ | |
| 722 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
| 723 /* typically, at most a few retries are needed */ \ | |
| 724 product(intx, SuspendRetryCount, 50, \ | |
| 725 "Maximum retry count for an external suspend request") \ | |
| 726 \ | |
| 727 product(intx, SuspendRetryDelay, 5, \ | |
| 728 "Milliseconds to delay per retry (* current_retry_count)") \ | |
| 729 \ | |
| 730 product(bool, AssertOnSuspendWaitFailure, false, \ | |
| 731 "Assert/Guarantee on external suspend wait failure") \ | |
| 732 \ | |
| 733 product(bool, TraceSuspendWaitFailures, false, \ | |
| 734 "Trace external suspend wait failures") \ | |
| 735 \ | |
| 736 product(bool, MaxFDLimit, true, \ | |
| 737 "Bump the number of file descriptors to max in solaris.") \ | |
| 738 \ | |
| 739 notproduct(bool, LogEvents, trueInDebug, \ | |
| 740 "Enable Event log") \ | |
| 741 \ | |
| 742 product(bool, BytecodeVerificationRemote, true, \ | |
| 743 "Enables the Java bytecode verifier for remote classes") \ | |
| 744 \ | |
| 745 product(bool, BytecodeVerificationLocal, false, \ | |
| 746 "Enables the Java bytecode verifier for local classes") \ | |
| 747 \ | |
| 748 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
| 749 "Force exceptions on FP stack under/overflow") \ | |
| 750 \ | |
| 751 develop(bool, SoftMatchFailure, trueInProduct, \ | |
| 752 "If the DFA fails to match a node, print a message and bail out") \ | |
| 753 \ | |
| 754 develop(bool, VerifyStackAtCalls, false, \ | |
| 755 "Verify that the stack pointer is unchanged after calls") \ | |
| 756 \ | |
| 757 develop(bool, TraceJavaAssertions, false, \ | |
| 758 "Trace java language assertions") \ | |
| 759 \ | |
| 760 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
| 761 "temporary - see javaClasses.cpp") \ | |
| 762 \ | |
| 763 notproduct(bool, PrintMallocFree, false, \ | |
| 764 "Trace calls to C heap malloc/free allocation") \ | |
| 765 \ | |
|
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766 product(bool, PrintOopAddress, false, \ |
| 0 | 767 "Always print the location of the oop") \ |
| 768 \ | |
| 769 notproduct(bool, VerifyCodeCacheOften, false, \ | |
| 770 "Verify compiled-code cache often") \ | |
| 771 \ | |
| 772 develop(bool, ZapDeadCompiledLocals, false, \ | |
| 773 "Zap dead locals in compiler frames") \ | |
| 774 \ | |
| 775 notproduct(bool, ZapDeadLocalsOld, false, \ | |
| 776 "Zap dead locals (old version, zaps all frames when " \ | |
| 777 "entering the VM") \ | |
| 778 \ | |
| 779 notproduct(bool, CheckOopishValues, false, \ | |
| 780 "Warn if value contains oop ( requires ZapDeadLocals)") \ | |
| 781 \ | |
| 782 develop(bool, UseMallocOnly, false, \ | |
| 783 "use only malloc/free for allocation (no resource area/arena)") \ | |
| 784 \ | |
| 785 develop(bool, PrintMalloc, false, \ | |
| 786 "print all malloc/free calls") \ | |
| 787 \ | |
| 2250 | 788 develop(bool, PrintMallocStatistics, false, \ |
| 789 "print malloc/free statistics") \ | |
| 790 \ | |
| 0 | 791 develop(bool, ZapResourceArea, trueInDebug, \ |
| 792 "Zap freed resource/arena space with 0xABABABAB") \ | |
| 793 \ | |
| 794 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
| 795 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
| 796 \ | |
| 797 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
| 798 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
| 799 \ | |
|
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800 notproduct(bool, ZapStackSegments, trueInDebug, \ |
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801 "Zap allocated/freed Stack segments with 0xFADFADED") \ |
|
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|
802 \ |
|
263
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|
803 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
| 0 | 804 "Zap unused heap space with 0xBAADBABE") \ |
| 805 \ | |
|
263
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|
806 develop(bool, TraceZapUnusedHeapArea, false, \ |
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|
807 "Trace zapping of unused heap space") \ |
|
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|
808 \ |
|
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|
809 develop(bool, CheckZapUnusedHeapArea, false, \ |
|
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|
810 "Check zapping of unused heap space") \ |
|
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|
811 \ |
|
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|
812 develop(bool, ZapFillerObjects, trueInDebug, \ |
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|
813 "Zap filler objects with 0xDEAFBABE") \ |
|
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|
814 \ |
| 0 | 815 develop(bool, PrintVMMessages, true, \ |
| 816 "Print vm messages on console") \ | |
| 817 \ | |
| 818 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
| 819 "Print the time the application has been running") \ | |
| 820 \ | |
| 821 product(bool, PrintGCApplicationStoppedTime, false, \ | |
| 822 "Print the time the application has been stopped") \ | |
| 823 \ | |
|
1490
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824 notproduct(uintx, ErrorHandlerTest, 0, \ |
|
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|
825 "If > 0, provokes an error after VM initialization; the value" \ |
|
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826 "determines which error to provoke. See test_error_handler()" \ |
|
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827 "in debug.cpp.") \ |
|
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|
828 \ |
| 0 | 829 develop(bool, Verbose, false, \ |
| 830 "Prints additional debugging information from other modes") \ | |
| 831 \ | |
| 832 develop(bool, PrintMiscellaneous, false, \ | |
| 833 "Prints uncategorized debugging information (requires +Verbose)") \ | |
| 834 \ | |
| 835 develop(bool, WizardMode, false, \ | |
| 836 "Prints much more debugging information") \ | |
| 837 \ | |
| 838 product(bool, ShowMessageBoxOnError, false, \ | |
| 839 "Keep process alive on VM fatal error") \ | |
| 840 \ | |
|
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|
841 product(bool, CreateMinidumpOnCrash, false, \ |
|
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|
842 "Create minidump on VM fatal error") \ |
|
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|
843 \ |
| 0 | 844 product_pd(bool, UseOSErrorReporting, \ |
| 845 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
| 846 \ | |
| 847 product(bool, SuppressFatalErrorMessage, false, \ | |
| 848 "Do NO Fatal Error report [Avoid deadlock]") \ | |
| 849 \ | |
| 850 product(ccstrlist, OnError, "", \ | |
| 851 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
| 852 "for examples") \ | |
| 853 \ | |
| 854 product(ccstrlist, OnOutOfMemoryError, "", \ | |
| 855 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
| 856 \ | |
|
615
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|
857 manageable(bool, HeapDumpBeforeFullGC, false, \ |
|
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|
858 "Dump heap to file before any major stop-world GC") \ |
|
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|
859 \ |
|
c6c601a0f2d6
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|
860 manageable(bool, HeapDumpAfterFullGC, false, \ |
|
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|
861 "Dump heap to file after any major stop-world GC") \ |
|
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|
862 \ |
| 0 | 863 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
| 864 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
| 865 \ | |
| 866 manageable(ccstr, HeapDumpPath, NULL, \ | |
| 867 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ | |
| 868 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ | |
| 869 "in the working directory)") \ | |
| 870 \ | |
| 871 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
| 872 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
| 873 "when the heap usage is larger than this") \ | |
| 874 \ | |
| 875 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
| 876 "Approximate segment size when generating a segmented heap dump") \ | |
| 877 \ | |
| 878 develop(bool, BreakAtWarning, false, \ | |
| 879 "Execute breakpoint upon encountering VM warning") \ | |
| 880 \ | |
| 881 product_pd(bool, UseVectoredExceptions, \ | |
| 882 "Temp Flag - Use Vectored Exceptions rather than SEH (Windows Only)") \ | |
| 883 \ | |
| 884 develop(bool, TraceVMOperation, false, \ | |
| 885 "Trace vm operations") \ | |
| 886 \ | |
| 887 develop(bool, UseFakeTimers, false, \ | |
| 888 "Tells whether the VM should use system time or a fake timer") \ | |
| 889 \ | |
| 890 diagnostic(bool, LogCompilation, false, \ | |
| 891 "Log compilation activity in detail to hotspot.log or LogFile") \ | |
| 892 \ | |
| 893 product(bool, PrintCompilation, false, \ | |
| 894 "Print compilations") \ | |
| 895 \ | |
| 896 diagnostic(bool, TraceNMethodInstalls, false, \ | |
| 897 "Trace nmethod intallation") \ | |
| 898 \ | |
|
4119
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|
899 diagnostic(intx, ScavengeRootsInCode, 2, \ |
|
989
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|
900 "0: do not allow scavengable oops in the code cache; " \ |
|
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|
901 "1: allow scavenging from the code cache; " \ |
|
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902 "2: emit as many constants as the compiler can see") \ |
|
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|
903 \ |
| 0 | 904 diagnostic(bool, TraceOSRBreakpoint, false, \ |
| 905 "Trace OSR Breakpoint ") \ | |
| 906 \ | |
| 907 diagnostic(bool, TraceCompileTriggered, false, \ | |
| 908 "Trace compile triggered") \ | |
| 909 \ | |
| 910 diagnostic(bool, TraceTriggers, false, \ | |
| 911 "Trace triggers") \ | |
| 912 \ | |
| 913 product(bool, AlwaysRestoreFPU, false, \ | |
| 914 "Restore the FPU control word after every JNI call (expensive)") \ | |
| 915 \ | |
|
4064
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916 diagnostic(bool, PrintCompilation2, false, \ |
| 0 | 917 "Print additional statistics per compilation") \ |
| 918 \ | |
|
100
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|
919 diagnostic(bool, PrintAdapterHandlers, false, \ |
| 0 | 920 "Print code generated for i2c/c2i adapters") \ |
| 921 \ | |
|
1207
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|
922 develop(bool, VerifyAdapterSharing, false, \ |
|
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|
923 "Verify that the code for shared adapters is the equivalent") \ |
|
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|
924 \ |
|
100
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|
925 diagnostic(bool, PrintAssembly, false, \ |
|
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|
926 "Print assembly code (using external disassembler.so)") \ |
|
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|
927 \ |
|
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928 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
|
100
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|
929 "Options string passed to disassembler.so") \ |
|
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|
930 \ |
|
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|
931 diagnostic(bool, PrintNMethods, false, \ |
| 0 | 932 "Print assembly code for nmethods when generated") \ |
| 933 \ | |
|
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|
934 diagnostic(bool, PrintNativeNMethods, false, \ |
| 0 | 935 "Print assembly code for native nmethods when generated") \ |
| 936 \ | |
| 937 develop(bool, PrintDebugInfo, false, \ | |
| 938 "Print debug information for all nmethods when generated") \ | |
| 939 \ | |
| 940 develop(bool, PrintRelocations, false, \ | |
| 941 "Print relocation information for all nmethods when generated") \ | |
| 942 \ | |
| 943 develop(bool, PrintDependencies, false, \ | |
| 944 "Print dependency information for all nmethods when generated") \ | |
| 945 \ | |
| 946 develop(bool, PrintExceptionHandlers, false, \ | |
| 947 "Print exception handler tables for all nmethods when generated") \ | |
| 948 \ | |
| 949 develop(bool, InterceptOSException, false, \ | |
| 950 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
| 951 "exception happens") \ | |
| 952 \ | |
| 953 notproduct(bool, PrintCodeCache, false, \ | |
| 954 "Print the compiled_code cache when exiting") \ | |
| 955 \ | |
| 956 develop(bool, PrintCodeCache2, false, \ | |
| 957 "Print detailed info on the compiled_code cache when exiting") \ | |
| 958 \ | |
|
100
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|
959 diagnostic(bool, PrintStubCode, false, \ |
| 0 | 960 "Print generated stub code") \ |
| 961 \ | |
| 962 product(bool, StackTraceInThrowable, true, \ | |
| 963 "Collect backtrace in throwable when exception happens") \ | |
| 964 \ | |
| 965 product(bool, OmitStackTraceInFastThrow, true, \ | |
| 966 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
| 967 \ | |
| 968 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
| 969 "Prints byte code statictics when dumping profiler output") \ | |
| 970 \ | |
| 971 product(bool, ProfilerRecordPC, false, \ | |
| 972 "Collects tick for each 16 byte interval of compiled code") \ | |
| 973 \ | |
| 1064 | 974 product(bool, ProfileVM, false, \ |
| 0 | 975 "Profiles ticks that fall within VM (either in the VM Thread " \ |
| 976 "or VM code called through stubs)") \ | |
| 977 \ | |
| 978 product(bool, ProfileIntervals, false, \ | |
| 979 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
| 980 \ | |
| 981 notproduct(bool, ProfilerCheckIntervals, false, \ | |
| 982 "Collect and print info on spacing of profiler ticks") \ | |
| 983 \ | |
| 984 develop(bool, PrintJVMWarnings, false, \ | |
| 985 "Prints warnings for unimplemented JVM functions") \ | |
| 986 \ | |
|
1870
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987 product(bool, PrintWarnings, true, \ |
|
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|
988 "Prints JVM warnings to output stream") \ |
|
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|
989 \ |
| 0 | 990 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
| 991 "Prints warnings for stalled SpinLocks") \ | |
| 992 \ | |
| 993 develop(bool, InitializeJavaLangSystem, true, \ | |
| 994 "Initialize java.lang.System - turn off for individual " \ | |
| 995 "method debugging") \ | |
| 996 \ | |
| 997 develop(bool, InitializeJavaLangString, true, \ | |
| 998 "Initialize java.lang.String - turn off for individual " \ | |
| 999 "method debugging") \ | |
| 1000 \ | |
| 1001 develop(bool, InitializeJavaLangExceptionsErrors, true, \ | |
| 1002 "Initialize various error and exception classes - turn off for " \ | |
| 1003 "individual method debugging") \ | |
| 1004 \ | |
| 1005 product(bool, RegisterFinalizersAtInit, true, \ | |
| 1006 "Register finalizable objects at end of Object.<init> or " \ | |
| 1064 | 1007 "after allocation") \ |
| 0 | 1008 \ |
| 1009 develop(bool, RegisterReferences, true, \ | |
| 1010 "Tells whether the VM should register soft/weak/final/phantom " \ | |
| 1011 "references") \ | |
| 1012 \ | |
| 1013 develop(bool, IgnoreRewrites, false, \ | |
| 1014 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
| 1015 "This is unsafe!") \ | |
| 1016 \ | |
| 1017 develop(bool, PrintCodeCacheExtension, false, \ | |
| 1018 "Print extension of code cache") \ | |
| 1019 \ | |
| 1020 develop(bool, UsePrivilegedStack, true, \ | |
| 1021 "Enable the security JVM functions") \ | |
| 1022 \ | |
| 1023 develop(bool, IEEEPrecision, true, \ | |
| 1024 "Enables IEEE precision (for INTEL only)") \ | |
| 1025 \ | |
| 1026 develop(bool, ProtectionDomainVerification, true, \ | |
| 1027 "Verifies protection domain before resolution in system " \ | |
| 1028 "dictionary") \ | |
| 1029 \ | |
| 1030 product(bool, ClassUnloading, true, \ | |
| 1031 "Do unloading of classes") \ | |
| 1032 \ | |
|
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1033 diagnostic(bool, LinkWellKnownClasses, false, \ |
|
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1034 "Resolve a well known class as soon as its name is seen") \ |
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1035 \ |
| 0 | 1036 develop(bool, DisableStartThread, false, \ |
| 1037 "Disable starting of additional Java threads " \ | |
| 1038 "(for debugging only)") \ | |
| 1039 \ | |
| 1040 develop(bool, MemProfiling, false, \ | |
| 1041 "Write memory usage profiling to log file") \ | |
| 1042 \ | |
| 1043 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
| 1044 "Prints the system dictionary at exit") \ | |
| 1045 \ | |
| 1046 diagnostic(bool, UnsyncloadClass, false, \ | |
| 514 | 1047 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
| 1048 "class loader must call VM synchronized for findClass " \ | |
| 1049 "and defineClass.") \ | |
| 1050 \ | |
| 1051 product(bool, AlwaysLockClassLoader, false, \ | |
| 1052 "Require the VM to acquire the class loader lock before calling " \ | |
| 1053 "loadClass() even for class loaders registering " \ | |
| 1064 | 1054 "as parallel capable") \ |
| 514 | 1055 \ |
| 1056 product(bool, AllowParallelDefineClass, false, \ | |
| 1057 "Allow parallel defineClass requests for class loaders " \ | |
| 1064 | 1058 "registering as parallel capable") \ |
| 514 | 1059 \ |
| 1060 product(bool, MustCallLoadClassInternal, false, \ | |
| 1064 | 1061 "Call loadClassInternal() rather than loadClass()") \ |
| 0 | 1062 \ |
| 1063 product_pd(bool, DontYieldALot, \ | |
| 1064 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
| 1065 \ | |
| 1066 product_pd(bool, ConvertSleepToYield, \ | |
| 1067 "Converts sleep(0) to thread yield " \ | |
| 1068 "(may be off for SOLARIS to improve GUI)") \ | |
| 1069 \ | |
| 1070 product(bool, ConvertYieldToSleep, false, \ | |
| 1071 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
| 1072 "behavior (SOLARIS only)") \ | |
| 1073 \ | |
| 1074 product(bool, UseBoundThreads, true, \ | |
| 1075 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
| 1076 \ | |
| 1077 develop(bool, UseDetachedThreads, true, \ | |
| 1078 "Use detached threads that are recycled upon termination " \ | |
| 1079 "(for SOLARIS only)") \ | |
| 1080 \ | |
| 1081 product(bool, UseLWPSynchronization, true, \ | |
| 1082 "Use LWP-based instead of libthread-based synchronization " \ | |
| 1083 "(SPARC only)") \ | |
| 1084 \ | |
|
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1085 product(ccstr, SyncKnobs, NULL, \ |
| 0 | 1086 "(Unstable) Various monitor synchronization tunables") \ |
| 1087 \ | |
| 1088 product(intx, EmitSync, 0, \ | |
| 1089 "(Unsafe,Unstable) " \ | |
| 1090 " Controls emission of inline sync fast-path code") \ | |
| 1091 \ | |
| 1092 product(intx, AlwaysInflate, 0, "(Unstable) Force inflation") \ | |
| 1093 \ | |
| 1587 | 1094 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
| 1095 \ | |
| 1096 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
| 1097 \ | |
| 0 | 1098 product(intx, Atomics, 0, \ |
| 1099 "(Unsafe,Unstable) Diagnostic - Controls emission of atomics") \ | |
| 1100 \ | |
| 1101 product(intx, FenceInstruction, 0, \ | |
| 1102 "(Unsafe,Unstable) Experimental") \ | |
| 1103 \ | |
| 1104 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ | |
| 1105 \ | |
| 1106 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
| 1107 \ | |
| 1108 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
| 1109 \ | |
| 1110 product(intx, hashCode, 0, \ | |
| 1111 "(Unstable) select hashCode generation algorithm" ) \ | |
| 1112 \ | |
| 1113 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
| 1114 "(Unstable, Linux-specific)" \ | |
| 1115 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
| 1116 \ | |
| 1064 | 1117 product(bool, FilterSpuriousWakeups, true, \ |
| 1118 "Prevent spurious or premature wakeups from object.wait " \ | |
| 1119 "(Solaris only)") \ | |
| 0 | 1120 \ |
| 1121 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
| 1122 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
| 1123 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
| 1124 \ | |
| 1125 develop(bool, UsePthreads, false, \ | |
| 1126 "Use pthread-based instead of libthread-based synchronization " \ | |
| 1127 "(SPARC only)") \ | |
| 1128 \ | |
| 1129 product(bool, AdjustConcurrency, false, \ | |
| 1130 "call thr_setconcurrency at thread create time to avoid " \ | |
| 1131 "LWP starvation on MP systems (For Solaris Only)") \ | |
| 1132 \ | |
| 1133 develop(bool, UpdateHotSpotCompilerFileOnError, true, \ | |
| 1134 "Should the system attempt to update the compiler file when " \ | |
| 1135 "an error occurs?") \ | |
| 1136 \ | |
| 1137 product(bool, ReduceSignalUsage, false, \ | |
| 1138 "Reduce the use of OS signals in Java and/or the VM") \ | |
| 1139 \ | |
| 1140 notproduct(bool, ValidateMarkSweep, false, \ | |
| 1141 "Do extra validation during MarkSweep collection") \ | |
| 1142 \ | |
| 1143 notproduct(bool, RecordMarkSweepCompaction, false, \ | |
| 1144 "Enable GC-to-GC recording and querying of compaction during " \ | |
| 1145 "MarkSweep") \ | |
| 1146 \ | |
| 1147 develop_pd(bool, ShareVtableStubs, \ | |
| 1148 "Share vtable stubs (smaller code but worse branch prediction") \ | |
| 1149 \ | |
| 1150 develop(bool, LoadLineNumberTables, true, \ | |
| 1151 "Tells whether the class file parser loads line number tables") \ | |
| 1152 \ | |
| 1153 develop(bool, LoadLocalVariableTables, true, \ | |
| 1154 "Tells whether the class file parser loads local variable tables")\ | |
| 1155 \ | |
| 1156 develop(bool, LoadLocalVariableTypeTables, true, \ | |
| 1157 "Tells whether the class file parser loads local variable type tables")\ | |
| 1158 \ | |
| 1159 product(bool, AllowUserSignalHandlers, false, \ | |
| 1160 "Do not complain if the application installs signal handlers " \ | |
| 1161 "(Solaris & Linux only)") \ | |
| 1162 \ | |
| 1163 product(bool, UseSignalChaining, true, \ | |
| 1164 "Use signal-chaining to invoke signal handlers installed " \ | |
| 1165 "by the application (Solaris & Linux only)") \ | |
| 1166 \ | |
| 1167 product(bool, UseAltSigs, false, \ | |
| 1168 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
| 1064 | 1169 "internal signals (Solaris only)") \ |
| 0 | 1170 \ |
| 1171 product(bool, UseSpinning, false, \ | |
| 1172 "Use spinning in monitor inflation and before entry") \ | |
| 1173 \ | |
| 1174 product(bool, PreSpinYield, false, \ | |
| 1175 "Yield before inner spinning loop") \ | |
| 1176 \ | |
| 1177 product(bool, PostSpinYield, true, \ | |
| 1178 "Yield after inner spinning loop") \ | |
| 1179 \ | |
| 1180 product(bool, AllowJNIEnvProxy, false, \ | |
| 1181 "Allow JNIEnv proxies for jdbx") \ | |
| 1182 \ | |
| 1183 product(bool, JNIDetachReleasesMonitors, true, \ | |
| 1184 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
| 1185 \ | |
| 1186 product(bool, RestoreMXCSROnJNICalls, false, \ | |
| 1187 "Restore MXCSR when returning from JNI calls") \ | |
| 1188 \ | |
| 1189 product(bool, CheckJNICalls, false, \ | |
| 1190 "Verify all arguments to JNI calls") \ | |
| 1191 \ | |
| 1192 product(bool, UseFastJNIAccessors, true, \ | |
| 1193 "Use optimized versions of Get<Primitive>Field") \ | |
| 1194 \ | |
| 1195 product(bool, EagerXrunInit, false, \ | |
| 1196 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
| 1197 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
| 1198 \ | |
| 1199 product(bool, PreserveAllAnnotations, false, \ | |
| 1200 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
| 1201 \ | |
| 1202 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
| 1203 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
| 1204 \ | |
| 1205 product(bool, LazyBootClassLoader, true, \ | |
| 1206 "Enable/disable lazy opening of boot class path entries") \ | |
| 1207 \ | |
| 1208 diagnostic(bool, UseIncDec, true, \ | |
| 1209 "Use INC, DEC instructions on x86") \ | |
| 1210 \ | |
| 219 | 1211 product(bool, UseNewLongLShift, false, \ |
| 1212 "Use optimized bitwise shift left") \ | |
| 1213 \ | |
| 0 | 1214 product(bool, UseStoreImmI16, true, \ |
| 1215 "Use store immediate 16-bits value instruction on x86") \ | |
| 1216 \ | |
| 1217 product(bool, UseAddressNop, false, \ | |
| 1218 "Use '0F 1F [addr]' NOP instructions on x86 cpus") \ | |
| 1219 \ | |
| 1220 product(bool, UseXmmLoadAndClearUpper, true, \ | |
| 1221 "Load low part of XMM register and clear upper part") \ | |
| 1222 \ | |
| 1223 product(bool, UseXmmRegToRegMoveAll, false, \ | |
| 1224 "Copy all XMM register bits when moving value between registers") \ | |
| 1225 \ | |
| 71 | 1226 product(bool, UseXmmI2D, false, \ |
| 1227 "Use SSE2 CVTDQ2PD instruction to convert Integer to Double") \ | |
| 1228 \ | |
| 1229 product(bool, UseXmmI2F, false, \ | |
| 1230 "Use SSE2 CVTDQ2PS instruction to convert Integer to Float") \ | |
| 1231 \ | |
| 405 | 1232 product(bool, UseXMMForArrayCopy, false, \ |
| 1233 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
| 1234 \ | |
| 1235 product(bool, UseUnalignedLoadStores, false, \ | |
| 1236 "Use SSE2 MOVDQU instruction for Arraycopy") \ | |
| 1237 \ | |
| 3839 | 1238 product(bool, UseCBCond, false, \ |
| 1239 "Use compare and branch instruction on SPARC") \ | |
| 1240 \ | |
| 0 | 1241 product(intx, FieldsAllocationStyle, 1, \ |
|
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1242 "0 - type based with oops first, 1 - with oops last, " \ |
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1243 "2 - oops in super and sub classes are together") \ |
| 0 | 1244 \ |
| 1245 product(bool, CompactFields, true, \ | |
| 1246 "Allocate nonstatic fields in gaps between previous fields") \ | |
| 1247 \ | |
| 1248 notproduct(bool, PrintCompactFieldsSavings, false, \ | |
| 1249 "Print how many words were saved with CompactFields") \ | |
| 1250 \ | |
| 1251 product(bool, UseBiasedLocking, true, \ | |
| 1252 "Enable biased locking in JVM") \ | |
| 1253 \ | |
| 1254 product(intx, BiasedLockingStartupDelay, 4000, \ | |
| 1255 "Number of milliseconds to wait before enabling biased locking") \ | |
| 1256 \ | |
| 1257 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
| 1258 "Print statistics of biased locking in JVM") \ | |
| 1259 \ | |
| 1260 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
| 1261 "Threshold of number of revocations per type to try to " \ | |
| 1262 "rebias all objects in the heap of that type") \ | |
| 1263 \ | |
| 1264 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
| 1265 "Threshold of number of revocations per type to permanently " \ | |
| 1266 "revoke biases of all objects in the heap of that type") \ | |
| 1267 \ | |
| 1268 product(intx, BiasedLockingDecayTime, 25000, \ | |
| 1269 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
| 1270 "type after previous bulk rebias") \ | |
| 1271 \ | |
|
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1272 develop(bool, JavaObjectsInPerm, false, \ |
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1273 "controls whether Classes and interned Strings are allocated" \ |
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1274 "in perm. This purely intended to allow debugging issues" \ |
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1275 "in production.") \ |
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|
1276 \ |
| 0 | 1277 /* tracing */ \ |
| 1278 \ | |
| 1279 notproduct(bool, TraceRuntimeCalls, false, \ | |
| 1280 "Trace run-time calls") \ | |
| 1281 \ | |
| 1282 develop(bool, TraceJNICalls, false, \ | |
| 1283 "Trace JNI calls") \ | |
| 1284 \ | |
| 1285 notproduct(bool, TraceJVMCalls, false, \ | |
| 1286 "Trace JVM calls") \ | |
| 1287 \ | |
|
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1288 product(ccstr, TraceJVMTI, NULL, \ |
| 0 | 1289 "Trace flags for JVMTI functions and events") \ |
| 1290 \ | |
| 1291 /* This option can change an EMCP method into an obsolete method. */ \ | |
| 1292 /* This can affect tests that except specific methods to be EMCP. */ \ | |
| 1293 /* This option should be used with caution. */ \ | |
| 1294 product(bool, StressLdcRewrite, false, \ | |
| 1295 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
| 1296 \ | |
| 1297 product(intx, TraceRedefineClasses, 0, \ | |
| 1298 "Trace level for JVMTI RedefineClasses") \ | |
| 1299 \ | |
| 1574 | 1300 develop(bool, StressMethodComparator, false, \ |
| 1301 "run the MethodComparator on all loaded methods") \ | |
| 1302 \ | |
| 0 | 1303 /* change to false by default sometime after Mustang */ \ |
| 1304 product(bool, VerifyMergedCPBytecodes, true, \ | |
| 1305 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
| 1306 \ | |
| 1307 develop(bool, TraceJNIHandleAllocation, false, \ | |
| 1308 "Trace allocation/deallocation of JNI handle blocks") \ | |
| 1309 \ | |
| 1310 develop(bool, TraceThreadEvents, false, \ | |
| 1311 "Trace all thread events") \ | |
| 1312 \ | |
| 1313 develop(bool, TraceBytecodes, false, \ | |
| 1314 "Trace bytecode execution") \ | |
| 1315 \ | |
| 1316 develop(bool, TraceClassInitialization, false, \ | |
| 1317 "Trace class initialization") \ | |
| 1318 \ | |
| 1319 develop(bool, TraceExceptions, false, \ | |
| 1320 "Trace exceptions") \ | |
| 1321 \ | |
| 1322 develop(bool, TraceICs, false, \ | |
| 1323 "Trace inline cache changes") \ | |
| 1324 \ | |
| 1325 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
| 1326 "Trace method invocation counter overflow") \ | |
| 1327 \ | |
| 1328 develop(bool, TraceInlineCacheClearing, false, \ | |
| 1329 "Trace clearing of inline caches in nmethods") \ | |
| 1330 \ | |
| 1331 develop(bool, TraceDependencies, false, \ | |
| 1332 "Trace dependencies") \ | |
| 1333 \ | |
| 1334 develop(bool, VerifyDependencies, trueInDebug, \ | |
| 1335 "Exercise and verify the compilation dependency mechanism") \ | |
| 1336 \ | |
| 1337 develop(bool, TraceNewOopMapGeneration, false, \ | |
| 1338 "Trace OopMapGeneration") \ | |
| 1339 \ | |
| 1340 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
| 1341 "Trace OopMapGeneration: print detailed cell states") \ | |
| 1342 \ | |
| 1343 develop(bool, TimeOopMap, false, \ | |
| 1344 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
| 1345 \ | |
| 1346 develop(bool, TimeOopMap2, false, \ | |
| 1347 "Time calls to GenerateOopMap::compute_map() individually") \ | |
| 1348 \ | |
| 1349 develop(bool, TraceMonitorMismatch, false, \ | |
| 1350 "Trace monitor matching failures during OopMapGeneration") \ | |
| 1351 \ | |
| 1352 develop(bool, TraceOopMapRewrites, false, \ | |
| 1353 "Trace rewritting of method oops during oop map generation") \ | |
| 1354 \ | |
| 1355 develop(bool, TraceSafepoint, false, \ | |
| 1356 "Trace safepoint operations") \ | |
| 1357 \ | |
| 1358 develop(bool, TraceICBuffer, false, \ | |
| 1359 "Trace usage of IC buffer") \ | |
| 1360 \ | |
| 1361 develop(bool, TraceCompiledIC, false, \ | |
| 1362 "Trace changes of compiled IC") \ | |
| 1363 \ | |
| 1364 notproduct(bool, TraceZapDeadLocals, false, \ | |
| 1365 "Trace zapping dead locals") \ | |
| 1366 \ | |
| 1367 develop(bool, TraceStartupTime, false, \ | |
| 1368 "Trace setup time") \ | |
| 1369 \ | |
| 1370 product(ccstr, HPILibPath, NULL, \ | |
| 1371 "Specify alternate path to HPI library") \ | |
| 1372 \ | |
| 1373 develop(bool, TraceProtectionDomainVerification, false, \ | |
| 1374 "Trace protection domain verifcation") \ | |
| 1375 \ | |
| 1376 develop(bool, TraceClearedExceptions, false, \ | |
| 1377 "Prints when an exception is forcibly cleared") \ | |
| 1378 \ | |
| 1379 product(bool, TraceClassResolution, false, \ | |
| 1380 "Trace all constant pool resolutions (for debugging)") \ | |
| 1381 \ | |
| 1382 product(bool, TraceBiasedLocking, false, \ | |
| 1383 "Trace biased locking in JVM") \ | |
| 1384 \ | |
| 1385 product(bool, TraceMonitorInflation, false, \ | |
| 1386 "Trace monitor inflation in JVM") \ | |
| 1387 \ | |
| 1388 /* assembler */ \ | |
| 1389 product(bool, Use486InstrsOnly, false, \ | |
| 1390 "Use 80486 Compliant instruction subset") \ | |
| 1391 \ | |
| 1392 /* gc */ \ | |
| 1393 \ | |
| 1394 product(bool, UseSerialGC, false, \ | |
|
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1395 "Use the serial garbage collector") \ |
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1396 \ |
|
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1397 product(bool, UseG1GC, false, \ |
|
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1398 "Use the Garbage-First garbage collector") \ |
| 0 | 1399 \ |
| 1400 product(bool, UseParallelGC, false, \ | |
| 1401 "Use the Parallel Scavenge garbage collector") \ | |
| 1402 \ | |
| 1403 product(bool, UseParallelOldGC, false, \ | |
| 1404 "Use the Parallel Old garbage collector") \ | |
| 1405 \ | |
| 1406 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
| 1407 "How often should we maximally compact the heap (not allowing " \ | |
| 1408 "any dead space)") \ | |
| 1409 \ | |
| 1410 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
| 1411 "The collection count for the first maximum compaction") \ | |
| 1412 \ | |
| 1413 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
| 1414 "In the Parallel Old garbage collector maximum compaction for " \ | |
| 1415 "a system GC") \ | |
| 1416 \ | |
| 1417 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
| 1418 "The mean used by the par compact dead wood" \ | |
| 1419 "limiter (a number between 0-100).") \ | |
| 1420 \ | |
| 1421 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
| 1422 "The standard deviation used by the par compact dead wood" \ | |
| 1423 "limiter (a number between 0-100).") \ | |
| 1424 \ | |
| 1425 product(uintx, ParallelGCThreads, 0, \ | |
| 1426 "Number of parallel threads parallel gc will use") \ | |
| 1427 \ | |
|
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1428 product(bool, UseDynamicNumberOfGCThreads, false, \ |
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1429 "Dynamically choose the number of parallel threads " \ |
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1430 "parallel gc will use") \ |
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1431 \ |
|
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|
1432 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
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1433 "Force dynamic selection of the number of" \ |
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diff
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|
1434 "parallel threads parallel gc will use to aid debugging") \ |
|
bca17e38de00
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|
1435 \ |
|
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|
1436 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
|
bca17e38de00
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|
1437 "Size of heap (bytes) per GC thread used in calculating the " \ |
|
bca17e38de00
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|
1438 "number of GC threads") \ |
|
bca17e38de00
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|
1439 \ |
|
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|
1440 product(bool, TraceDynamicGCThreads, false, \ |
|
bca17e38de00
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|
1441 "Trace the dynamic GC thread usage") \ |
|
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|
1442 \ |
|
483
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|
1443 develop(bool, ParallelOldGCSplitALot, false, \ |
|
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|
1444 "Provoke splitting (copying data from a young gen space to" \ |
|
0f773163217d
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diff
changeset
|
1445 "multiple destination spaces)") \ |
|
0f773163217d
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diff
changeset
|
1446 \ |
|
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diff
changeset
|
1447 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
|
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changeset
|
1448 "How often to provoke splitting a young gen space") \ |
| 0 | 1449 \ |
|
375
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|
1450 develop(bool, TraceRegionTasksQueuing, false, \ |
|
81cd571500b0
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|
1451 "Trace the queuing of the region tasks") \ |
| 0 | 1452 \ |
| 1284 | 1453 product(uintx, ConcGCThreads, 0, \ |
| 1454 "Number of threads concurrent gc will use") \ | |
|
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|
1455 \ |
| 0 | 1456 product(uintx, YoungPLABSize, 4096, \ |
| 1457 "Size of young gen promotion labs (in HeapWords)") \ | |
| 1458 \ | |
| 1459 product(uintx, OldPLABSize, 1024, \ | |
| 1460 "Size of old gen promotion labs (in HeapWords)") \ | |
| 1461 \ | |
| 1462 product(uintx, GCTaskTimeStampEntries, 200, \ | |
| 1463 "Number of time stamp entries per gc worker thread") \ | |
| 1464 \ | |
| 1465 product(bool, AlwaysTenure, false, \ | |
| 1466 "Always tenure objects in eden. (ParallelGC only)") \ | |
| 1467 \ | |
| 1468 product(bool, NeverTenure, false, \ | |
| 1064 | 1469 "Never tenure objects in eden, May tenure on overflow " \ |
| 1470 "(ParallelGC only)") \ | |
| 0 | 1471 \ |
| 1472 product(bool, ScavengeBeforeFullGC, true, \ | |
| 1064 | 1473 "Scavenge youngest generation before each full GC, " \ |
| 1474 "used with UseParallelGC") \ | |
| 0 | 1475 \ |
| 1476 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
| 1477 "Allow scavenges to occur when to_space contains objects.") \ | |
| 1478 \ | |
| 1479 product(bool, UseConcMarkSweepGC, false, \ | |
| 1480 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
| 1481 \ | |
| 1482 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
| 1483 "A System.gc() request invokes a concurrent collection;" \ | |
| 1484 " (effective only when UseConcMarkSweepGC)") \ | |
| 1485 \ | |
| 1486 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
| 1064 | 1487 "A System.gc() request invokes a concurrent collection and " \ |
| 1488 "also unloads classes during such a concurrent gc cycle " \ | |
| 1489 "(effective only when UseConcMarkSweepGC)") \ | |
| 0 | 1490 \ |
|
1520
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|
1491 product(bool, GCLockerInvokesConcurrent, false, \ |
|
bb843ebc7c55
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|
1492 "The exit of a JNI CS necessitating a scavenge also" \ |
|
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
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diff
changeset
|
1493 " kicks off a bkgrd concurrent collection") \ |
|
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
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diff
changeset
|
1494 \ |
|
1991
016a3628c885
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changeset
|
1495 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
|
016a3628c885
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diff
changeset
|
1496 "How much the GC can expand the eden by while the GC locker " \ |
|
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
1972
diff
changeset
|
1497 "is active (as a percentage)") \ |
|
016a3628c885
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diff
changeset
|
1498 \ |
| 0 | 1499 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
| 1500 "Use Adaptive Free Lists in the CMS generation") \ | |
| 1501 \ | |
| 1502 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
| 1503 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
| 1504 \ | |
| 1505 develop(bool, RotateCMSCollectionTypes, false, \ | |
| 1506 "Rotate the CMS collections among concurrent and STW") \ | |
| 1507 \ | |
| 1508 product(bool, UseCMSBestFit, true, \ | |
| 1509 "Use CMS best fit allocation strategy") \ | |
| 1510 \ | |
| 1511 product(bool, UseCMSCollectionPassing, true, \ | |
| 1512 "Use passing of collection from background to foreground") \ | |
| 1513 \ | |
| 1514 product(bool, UseParNewGC, false, \ | |
| 1515 "Use parallel threads in the new generation.") \ | |
| 1516 \ | |
| 1517 product(bool, ParallelGCVerbose, false, \ | |
| 1518 "Verbose output for parallel GC.") \ | |
| 1519 \ | |
| 1520 product(intx, ParallelGCBufferWastePct, 10, \ | |
| 1521 "wasted fraction of parallel allocation buffer.") \ | |
| 1522 \ | |
|
3357
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changeset
|
1523 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
|
fc2b798ab316
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changeset
|
1524 "Retain parallel allocation buffers across scavenges; " \ |
|
fc2b798ab316
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changeset
|
1525 " -- disabled because this currently conflicts with " \ |
|
fc2b798ab316
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|
1526 " parallel card scanning under certain conditions ") \ |
| 0 | 1527 \ |
| 1528 product(intx, TargetPLABWastePct, 10, \ | |
| 1529 "target wasted space in last buffer as pct of overall allocation")\ | |
| 1530 \ | |
| 1531 product(uintx, PLABWeight, 75, \ | |
| 1532 "Percentage (0-100) used to weight the current sample when" \ | |
| 1533 "computing exponentially decaying average for ResizePLAB.") \ | |
| 1534 \ | |
| 1535 product(bool, ResizePLAB, true, \ | |
| 1536 "Dynamically resize (survivor space) promotion labs") \ | |
| 1537 \ | |
| 1538 product(bool, PrintPLAB, false, \ | |
| 1539 "Print (survivor space) promotion labs sizing decisions") \ | |
| 1540 \ | |
| 1541 product(intx, ParGCArrayScanChunk, 50, \ | |
| 1542 "Scan a subset and push remainder, if array is bigger than this") \ | |
| 1543 \ | |
| 695 | 1544 product(bool, ParGCUseLocalOverflow, false, \ |
| 1545 "Instead of a global overflow list, use local overflow stacks") \ | |
| 1546 \ | |
|
679
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6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
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diff
changeset
|
1547 product(bool, ParGCTrimOverflow, true, \ |
| 695 | 1548 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
|
679
cea947c8a988
6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
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changeset
|
1549 \ |
| 534 | 1550 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
| 1551 "Whether we should simulate work queue overflow in ParNew") \ | |
| 1552 \ | |
| 1553 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
| 1064 | 1554 "An `interval' counter that determines how frequently " \ |
| 1555 "we simulate overflow; a smaller number increases frequency") \ | |
| 534 | 1556 \ |
| 1557 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
| 0 | 1558 "The desired number of objects to claim from the overflow list") \ |
| 1559 \ | |
|
4728
441e946dc1af
7121618: Change type of number of GC workers to unsigned int.
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changeset
|
1560 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
|
3357
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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3325
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changeset
|
1561 "The number of strides per worker thread that we divide up the " \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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changeset
|
1562 "card table scanning work into") \ |
|
fc2b798ab316
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changeset
|
1563 \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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3325
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changeset
|
1564 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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diff
changeset
|
1565 "The number of cards in each chunk of the parallel chunks used " \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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3325
diff
changeset
|
1566 "during card table scanning") \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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changeset
|
1567 \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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changeset
|
1568 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
| 0 | 1569 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
| 1570 "parallel GC.") \ | |
| 1571 \ | |
|
1145
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|
1572 product(uintx, OldPLABWeight, 50, \ |
|
e018e6884bd8
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changeset
|
1573 "Percentage (0-100) used to weight the current sample when" \ |
|
e018e6884bd8
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|
1574 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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|
1575 \ |
|
e018e6884bd8
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changeset
|
1576 product(bool, ResizeOldPLAB, true, \ |
|
e018e6884bd8
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changeset
|
1577 "Dynamically resize (old gen) promotion labs") \ |
|
e018e6884bd8
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|
1578 \ |
|
e018e6884bd8
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changeset
|
1579 product(bool, PrintOldPLAB, false, \ |
|
e018e6884bd8
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changeset
|
1580 "Print (old gen) promotion labs sizing decisions") \ |
|
e018e6884bd8
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|
1581 \ |
|
e018e6884bd8
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|
1582 product(uintx, CMSOldPLABMin, 16, \ |
|
e018e6884bd8
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changeset
|
1583 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
|
e018e6884bd8
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diff
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|
1584 \ |
|
e018e6884bd8
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changeset
|
1585 product(uintx, CMSOldPLABMax, 1024, \ |
|
e018e6884bd8
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diff
changeset
|
1586 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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diff
changeset
|
1587 \ |
|
e018e6884bd8
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changeset
|
1588 product(uintx, CMSOldPLABNumRefills, 4, \ |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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changeset
|
1589 "Nominal number of refills of CMS gen promotion lab cache" \ |
|
e018e6884bd8
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diff
changeset
|
1590 " per worker per block size") \ |
|
e018e6884bd8
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diff
changeset
|
1591 \ |
|
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changeset
|
1592 product(bool, CMSOldPLABResizeQuicker, false, \ |
|
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changeset
|
1593 "Whether to react on-the-fly during a scavenge to a sudden" \ |
|
e018e6884bd8
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diff
changeset
|
1594 " change in block demand rate") \ |
|
e018e6884bd8
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|
1595 \ |
|
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changeset
|
1596 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
|
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changeset
|
1597 "The tolerance of the phase-change detector for on-the-fly" \ |
|
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|
1598 " PLAB resizing during a scavenge") \ |
|
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|
1599 \ |
|
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changeset
|
1600 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
|
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changeset
|
1601 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
|
e018e6884bd8
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|
1602 " during a scavenge") \ |
|
e018e6884bd8
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|
1603 \ |
|
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changeset
|
1604 product(uintx, CMSOldPLABReactivityCeiling, 10, \ |
|
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|
1605 "The clamping of the gain in the feedback loop for on-the-fly" \ |
|
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|
1606 " PLAB resizing during a scavenge") \ |
|
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|
1607 \ |
| 0 | 1608 product(bool, AlwaysPreTouch, false, \ |
| 1609 "It forces all freshly committed pages to be pre-touched.") \ | |
| 1610 \ | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
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|
1611 product_pd(intx, CMSYoungGenPerWorker, \ |
|
dde920245681
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|
1612 "The maximum size of young gen chosen by default per GC worker " \ |
| 1064 | 1613 "thread available") \ |
| 0 | 1614 \ |
|
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|
1615 product(bool, GCOverheadReporting, false, \ |
|
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|
1616 "Enables the GC overhead reporting facility") \ |
|
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|
1617 \ |
|
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|
1618 product(intx, GCOverheadReportingPeriodMS, 100, \ |
|
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|
1619 "Reporting period for conc GC overhead reporting, in ms ") \ |
|
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|
1620 \ |
| 0 | 1621 product(bool, CMSIncrementalMode, false, \ |
| 1622 "Whether CMS GC should operate in \"incremental\" mode") \ | |
| 1623 \ | |
| 1624 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
| 1625 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
| 1626 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
| 1627 "value") \ | |
| 1628 \ | |
| 1629 product(bool, CMSIncrementalPacing, true, \ | |
| 1630 "Whether the CMS incremental mode duty cycle should be " \ | |
| 1631 "automatically adjusted") \ | |
| 1632 \ | |
| 1633 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
| 1064 | 1634 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
| 1635 "enabled (a percentage, 0-100)") \ | |
| 0 | 1636 \ |
| 1637 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
| 1064 | 1638 "Percentage (0-100) used to add conservatism when computing the " \ |
| 1639 "duty cycle") \ | |
| 0 | 1640 \ |
| 1641 product(uintx, CMSIncrementalOffset, 0, \ | |
| 1642 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
| 1064 | 1643 " is shifted to the right within the period between young GCs") \ |
| 0 | 1644 \ |
|
1145
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|
1645 product(uintx, CMSExpAvgFactor, 50, \ |
|
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1646 "Percentage (0-100) used to weight the current sample when" \ |
|
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1647 "computing exponential averages for CMS statistics.") \ |
|
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|
1648 \ |
|
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1649 product(uintx, CMS_FLSWeight, 75, \ |
|
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1650 "Percentage (0-100) used to weight the current sample when" \ |
|
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1651 "computing exponentially decating averages for CMS FLS statistics.") \ |
|
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1652 \ |
|
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1653 product(uintx, CMS_FLSPadding, 1, \ |
|
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1654 "The multiple of deviation from mean to use for buffering" \ |
| 0 | 1655 "against volatility in free list demand.") \ |
| 1656 \ | |
| 1657 product(uintx, FLSCoalescePolicy, 2, \ | |
| 1658 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
| 1659 \ | |
|
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1660 product(bool, FLSAlwaysCoalesceLarge, false, \ |
|
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1661 "CMS: Larger free blocks are always available for coalescing") \ |
|
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1662 \ |
|
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1663 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
|
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1664 "CMS: the smaller the percentage the greater the coalition force")\ |
|
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1665 \ |
|
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1666 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
|
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1667 "CMS: the factor by which to inflate estimated demand of small" \ |
|
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1668 " block sizes to prevent coalescing with an adjoining block") \ |
|
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|
1669 \ |
|
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1670 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
|
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1671 "CMS: the factor by which to inflate estimated demand of large" \ |
|
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|
1672 " block sizes to prevent coalescing with an adjoining block") \ |
|
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|
1673 \ |
|
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1674 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
|
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1675 "CMS: the factor by which to inflate estimated demand of small" \ |
|
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1676 " block sizes to prevent splitting to supply demand for smaller" \ |
|
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|
1677 " blocks") \ |
|
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|
1678 \ |
|
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1679 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
|
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1680 "CMS: the factor by which to inflate estimated demand of large" \ |
|
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1681 " block sizes to prevent splitting to supply demand for smaller" \ |
|
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1682 " blocks") \ |
|
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1683 \ |
|
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1684 product(bool, CMSExtrapolateSweep, false, \ |
|
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1685 "CMS: cushion for block demand during sweep") \ |
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1686 \ |
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1687 product(uintx, CMS_SweepWeight, 75, \ |
| 1064 | 1688 "Percentage (0-100) used to weight the current sample when " \ |
| 1689 "computing exponentially decaying average for inter-sweep " \ | |
| 1690 "duration") \ | |
| 0 | 1691 \ |
|
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1692 product(uintx, CMS_SweepPadding, 1, \ |
| 1064 | 1693 "The multiple of deviation from mean to use for buffering " \ |
| 0 | 1694 "against volatility in inter-sweep duration.") \ |
| 1695 \ | |
| 1696 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
| 1697 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
| 1064 | 1698 "duration exceeds this threhold in milliseconds") \ |
| 0 | 1699 \ |
| 1700 develop(bool, CMSTraceIncrementalMode, false, \ | |
| 1701 "Trace CMS incremental mode") \ | |
| 1702 \ | |
| 1703 develop(bool, CMSTraceIncrementalPacing, false, \ | |
| 1704 "Trace CMS incremental mode pacing computation") \ | |
| 1705 \ | |
| 1706 develop(bool, CMSTraceThreadState, false, \ | |
| 1707 "Trace the CMS thread state (enable the trace_state() method)") \ | |
| 1708 \ | |
| 1709 product(bool, CMSClassUnloadingEnabled, false, \ | |
| 1710 "Whether class unloading enabled when using CMS GC") \ | |
| 1711 \ | |
|
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1712 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
|
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1713 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
|
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1714 " for which classes may not be unloaded") \ |
|
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1715 \ |
| 0 | 1716 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
| 1717 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
| 1718 \ | |
| 1719 product(bool, UseCMSCompactAtFullCollection, true, \ | |
| 1720 "Use mark sweep compact at full collections") \ | |
| 1721 \ | |
| 1722 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
| 1723 "Number of CMS full collection done before compaction if > 0") \ | |
| 1724 \ | |
| 1725 develop(intx, CMSDictionaryChoice, 0, \ | |
| 1726 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
| 1727 \ | |
| 1728 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
|
1777
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1729 "Replenish an indexed free list with this number of chunks") \ |
| 0 | 1730 \ |
|
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1731 product(bool, CMSReplenishIntermediate, true, \ |
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1732 "Replenish all intermediate free-list caches") \ |
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1733 \ |
|
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1734 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
|
1777
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1735 "When satisfying batched demand, split blocks from the " \ |
|
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1736 "IndexedFreeList whose size is a multiple of requested size") \ |
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1737 \ |
| 0 | 1738 product(bool, CMSLoopWarn, false, \ |
| 1739 "Warn in case of excessive CMS looping") \ | |
| 1740 \ | |
| 1741 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
| 1742 "Whether preserved marks should be restored early") \ | |
| 1743 \ | |
| 1284 | 1744 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
| 1745 "Size of marking stack") \ | |
| 1746 \ | |
| 1747 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
| 1748 "Max size of marking stack") \ | |
| 0 | 1749 \ |
| 1750 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
| 1751 "Whether we should simulate frequent marking stack / work queue" \ | |
| 1752 " overflow") \ | |
| 1753 \ | |
| 534 | 1754 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
| 1755 "An `interval' counter that determines how frequently" \ | |
| 0 | 1756 " we simulate overflow; a smaller number increases frequency") \ |
| 1757 \ | |
| 1758 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
| 1759 "(Temporary, subject to experimentation)" \ | |
| 1760 "Maximum number of abortable preclean iterations, if > 0") \ | |
| 1761 \ | |
| 1762 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
| 1763 "(Temporary, subject to experimentation)" \ | |
| 1764 "Maximum time in abortable preclean in ms") \ | |
| 1765 \ | |
| 1766 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
| 1767 "(Temporary, subject to experimentation)" \ | |
| 1768 "Nominal minimum work per abortable preclean iteration") \ | |
| 1769 \ | |
|
1887
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1770 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
| 0 | 1771 "(Temporary, subject to experimentation)" \ |
| 1772 " Time that we sleep between iterations when not given" \ | |
| 1773 " enough work per iteration") \ | |
| 1774 \ | |
| 1775 product(uintx, CMSRescanMultiple, 32, \ | |
| 1776 "Size (in cards) of CMS parallel rescan task") \ | |
| 1777 \ | |
| 1778 product(uintx, CMSConcMarkMultiple, 32, \ | |
| 1779 "Size (in cards) of CMS concurrent MT marking task") \ | |
| 1780 \ | |
| 1781 product(uintx, CMSRevisitStackSize, 1*M, \ | |
| 1782 "Size of CMS KlassKlass revisit stack") \ | |
| 1783 \ | |
| 1784 product(bool, CMSAbortSemantics, false, \ | |
| 1785 "Whether abort-on-overflow semantics is implemented") \ | |
| 1786 \ | |
| 1787 product(bool, CMSParallelRemarkEnabled, true, \ | |
| 1788 "Whether parallel remark enabled (only if ParNewGC)") \ | |
| 1789 \ | |
| 1790 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
| 1791 "Whether parallel remark of survivor space" \ | |
| 1792 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
| 1793 \ | |
| 1794 product(bool, CMSPLABRecordAlways, true, \ | |
| 1795 "Whether to always record survivor space PLAB bdries" \ | |
| 1796 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
| 1797 \ | |
| 1798 product(bool, CMSConcurrentMTEnabled, true, \ | |
| 1799 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
| 1800 \ | |
| 1801 product(bool, CMSPermGenPrecleaningEnabled, true, \ | |
| 1802 "Whether concurrent precleaning enabled in perm gen" \ | |
| 1803 " (effective only when CMSPrecleaningEnabled is true)") \ | |
| 1804 \ | |
| 1805 product(bool, CMSPrecleaningEnabled, true, \ | |
| 1806 "Whether concurrent precleaning enabled") \ | |
| 1807 \ | |
| 1808 product(uintx, CMSPrecleanIter, 3, \ | |
| 1809 "Maximum number of precleaning iteration passes") \ | |
| 1810 \ | |
| 1811 product(uintx, CMSPrecleanNumerator, 2, \ | |
| 1812 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
| 1813 " ratio") \ | |
| 1814 \ | |
| 1815 product(uintx, CMSPrecleanDenominator, 3, \ | |
| 1816 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
| 1817 " ratio") \ | |
| 1818 \ | |
|
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1819 product(bool, CMSPrecleanRefLists1, true, \ |
| 0 | 1820 "Preclean ref lists during (initial) preclean phase") \ |
| 1821 \ | |
| 1822 product(bool, CMSPrecleanRefLists2, false, \ | |
| 1823 "Preclean ref lists during abortable preclean phase") \ | |
| 1824 \ | |
| 1825 product(bool, CMSPrecleanSurvivors1, false, \ | |
| 1826 "Preclean survivors during (initial) preclean phase") \ | |
| 1827 \ | |
| 1828 product(bool, CMSPrecleanSurvivors2, true, \ | |
| 1829 "Preclean survivors during abortable preclean phase") \ | |
| 1830 \ | |
| 1831 product(uintx, CMSPrecleanThreshold, 1000, \ | |
| 1832 "Don't re-iterate if #dirty cards less than this") \ | |
| 1833 \ | |
| 1834 product(bool, CMSCleanOnEnter, true, \ | |
| 1835 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
| 1836 \ | |
| 1837 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
| 1838 "Choose variant (1,2) of verification following remark") \ | |
| 1839 \ | |
| 1840 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
| 1841 "If Eden used is below this value, don't try to schedule remark") \ | |
| 1842 \ | |
| 1843 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
| 1844 "The Eden occupancy % at which to try and schedule remark pause") \ | |
| 1845 \ | |
| 1846 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
| 1847 "Start sampling Eden top at least before yg occupancy reaches" \ | |
| 1848 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
| 1849 \ | |
| 1850 product(uintx, CMSSamplingGrain, 16*K, \ | |
| 1851 "The minimum distance between eden samples for CMS (see above)") \ | |
| 1852 \ | |
| 1853 product(bool, CMSScavengeBeforeRemark, false, \ | |
| 1854 "Attempt scavenge before the CMS remark step") \ | |
| 1855 \ | |
| 1856 develop(bool, CMSTraceSweeper, false, \ | |
| 1857 "Trace some actions of the CMS sweeper") \ | |
| 1858 \ | |
| 1859 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
| 1860 "Don't drain below this size per parallel worker/thief") \ | |
| 1861 \ | |
|
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1862 manageable(intx, CMSWaitDuration, 2000, \ |
| 0 | 1863 "Time in milliseconds that CMS thread waits for young GC") \ |
| 1864 \ | |
| 1865 product(bool, CMSYield, true, \ | |
| 1866 "Yield between steps of concurrent mark & sweep") \ | |
| 1867 \ | |
| 1868 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
| 1869 "Bitmap operations should process at most this many bits" \ | |
| 1870 "between yields") \ | |
| 1871 \ | |
|
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1872 product(bool, CMSDumpAtPromotionFailure, false, \ |
|
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1873 "Dump useful information about the state of the CMS old " \ |
|
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|
1874 " generation upon a promotion failure.") \ |
|
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|
1875 \ |
|
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1876 product(bool, CMSPrintChunksInDump, false, \ |
|
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|
1877 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
|
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1878 " more detailed information about the free chunks.") \ |
|
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|
1879 \ |
|
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1880 product(bool, CMSPrintObjectsInDump, false, \ |
|
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1881 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
|
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1882 " more detailed information about the allocated objects.") \ |
|
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1883 \ |
| 0 | 1884 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
| 1885 "Verify that all refs across the FLS boundary " \ | |
| 1886 " are to valid objects") \ | |
| 1887 \ | |
| 1888 diagnostic(bool, FLSVerifyLists, false, \ | |
| 1889 "Do lots of (expensive) FreeListSpace verification") \ | |
| 1890 \ | |
| 1891 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
| 1892 "Do lots of (expensive) FLS index table verification") \ | |
| 1893 \ | |
| 1894 develop(bool, FLSVerifyDictionary, false, \ | |
| 1895 "Do lots of (expensive) FLS dictionary verification") \ | |
| 1896 \ | |
| 1897 develop(bool, VerifyBlockOffsetArray, false, \ | |
| 1898 "Do (expensive!) block offset array verification") \ | |
| 1899 \ | |
|
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1900 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
| 0 | 1901 "Maintain _unallocated_block in BlockOffsetArray" \ |
| 1902 " (currently applicable only to CMS collector)") \ | |
| 1903 \ | |
| 1904 develop(bool, TraceCMSState, false, \ | |
| 1905 "Trace the state of the CMS collection") \ | |
| 1906 \ | |
| 1907 product(intx, RefDiscoveryPolicy, 0, \ | |
| 1908 "Whether reference-based(0) or referent-based(1)") \ | |
| 1909 \ | |
| 1910 product(bool, ParallelRefProcEnabled, false, \ | |
| 1911 "Enable parallel reference processing whenever possible") \ | |
| 1912 \ | |
| 1913 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
| 1914 "Enable balancing of reference processing queues") \ | |
| 1915 \ | |
| 1916 product(intx, CMSTriggerRatio, 80, \ | |
| 1917 "Percentage of MinHeapFreeRatio in CMS generation that is " \ | |
| 1064 | 1918 "allocated before a CMS collection cycle commences") \ |
| 0 | 1919 \ |
|
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1920 product(intx, CMSTriggerPermRatio, 80, \ |
| 1064 | 1921 "Percentage of MinHeapFreeRatio in the CMS perm generation that " \ |
| 1922 "is allocated before a CMS collection cycle commences, that " \ | |
| 1923 "also collects the perm generation") \ | |
|
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1924 \ |
|
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1925 product(uintx, CMSBootstrapOccupancy, 50, \ |
| 0 | 1926 "Percentage CMS generation occupancy at which to " \ |
| 1064 | 1927 "initiate CMS collection for bootstrapping collection stats") \ |
| 0 | 1928 \ |
| 1929 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
| 1930 "Percentage CMS generation occupancy to start a CMS collection " \ | |
| 1064 | 1931 "cycle. A negative value means that CMSTriggerRatio is used") \ |
|
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1932 \ |
|
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1933 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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1934 "Percentage of the (entire) heap occupancy to start a " \ |
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1935 "concurrent GC cycle. It us used by GCs that trigger a " \ |
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1936 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1937 "not just one of the generations (e.g., G1). A value of 0 " \ |
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|
1938 "denotes 'do constant GC cycles'.") \ |
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|
1939 \ |
|
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1940 product(intx, CMSInitiatingPermOccupancyFraction, -1, \ |
| 1064 | 1941 "Percentage CMS perm generation occupancy to start a " \ |
| 1942 "CMScollection cycle. A negative value means that " \ | |
| 1943 "CMSTriggerPermRatio is used") \ | |
| 0 | 1944 \ |
| 1945 product(bool, UseCMSInitiatingOccupancyOnly, false, \ | |
| 1946 "Only use occupancy as a crierion for starting a CMS collection") \ | |
| 1947 \ | |
|
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|
1948 product(intx, CMSIsTooFullPercentage, 98, \ |
| 1064 | 1949 "An absolute ceiling above which CMS will always consider the " \ |
| 1950 "perm gen ripe for collection") \ | |
|
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|
1951 \ |
| 0 | 1952 develop(bool, CMSTestInFreeList, false, \ |
| 1953 "Check if the coalesced range is already in the " \ | |
| 1064 | 1954 "free lists as claimed") \ |
| 0 | 1955 \ |
| 1956 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
| 1957 "Check that all the garbage collected was returned to the " \ | |
| 1958 "free lists.") \ | |
| 1959 \ | |
| 1960 notproduct(bool, ScavengeALot, false, \ | |
| 1961 "Force scavenge at every Nth exit from the runtime system " \ | |
| 1962 "(N=ScavengeALotInterval)") \ | |
| 1963 \ | |
| 1964 develop(bool, FullGCALot, false, \ | |
| 1965 "Force full gc at every Nth exit from the runtime system " \ | |
| 1966 "(N=FullGCALotInterval)") \ | |
| 1967 \ | |
| 1968 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
| 1969 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
| 1970 \ | |
|
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|
1971 product(bool, PrintPromotionFailure, false, \ |
|
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|
1972 "Print additional diagnostic information following " \ |
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|
1973 " promotion failure") \ |
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|
1974 \ |
| 0 | 1975 notproduct(bool, PromotionFailureALot, false, \ |
| 1976 "Use promotion failure handling on every youngest generation " \ | |
| 1977 "collection") \ | |
| 1978 \ | |
| 1979 develop(uintx, PromotionFailureALotCount, 1000, \ | |
| 1980 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
| 1981 "refill attempts (ParNew) or promotion attempts " \ | |
| 1982 "(other young collectors) ") \ | |
| 1983 \ | |
| 1984 develop(uintx, PromotionFailureALotInterval, 5, \ | |
| 1985 "Total collections between promotion failures alot") \ | |
| 1986 \ | |
|
1837
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|
1987 experimental(intx, WorkStealingSleepMillis, 1, \ |
| 0 | 1988 "Sleep time when sleep is used for yields") \ |
| 1989 \ | |
| 2430 | 1990 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
| 0 | 1991 "Number of yields before a sleep is done during workstealing") \ |
| 1992 \ | |
|
1837
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|
1993 experimental(uintx, WorkStealingHardSpins, 4096, \ |
|
546
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|
1994 "Number of iterations in a spin loop between checks on " \ |
|
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|
1995 "time out of hard spin") \ |
|
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|
1996 \ |
|
1837
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|
1997 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
|
546
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|
1998 "Ratio of hard spins to calls to yield") \ |
|
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|
1999 \ |
| 534 | 2000 product(uintx, PreserveMarkStackSize, 1024, \ |
| 1064 | 2001 "Size for stack used in promotion failure handling") \ |
| 0 | 2002 \ |
|
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|
2003 develop(uintx, ObjArrayMarkingStride, 512, \ |
|
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2004 "Number of ObjArray elements to push onto the marking stack" \ |
|
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2005 "before pushing a continuation entry") \ |
|
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|
2006 \ |
| 3779 | 2007 notproduct(bool, ExecuteInternalVMTests, false, \ |
| 2008 "Enable execution of internal VM tests.") \ | |
| 2009 \ | |
| 0 | 2010 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
| 2011 \ | |
| 2012 product_pd(bool, ResizeTLAB, \ | |
| 2013 "Dynamically resize tlab size for threads") \ | |
| 2014 \ | |
| 2015 product(bool, ZeroTLAB, false, \ | |
| 2016 "Zero out the newly created TLAB") \ | |
| 2017 \ | |
|
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|
2018 product(bool, FastTLABRefill, true, \ |
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|
2019 "Use fast TLAB refill code") \ |
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|
2020 \ |
| 0 | 2021 product(bool, PrintTLAB, false, \ |
| 2022 "Print various TLAB related information") \ | |
| 2023 \ | |
| 2024 product(bool, TLABStats, true, \ | |
| 2025 "Print various TLAB related information") \ | |
| 2026 \ | |
| 3892 | 2027 product(bool, UseBlockZeroing, false, \ |
| 2028 "Use special cpu instructions for block zeroing") \ | |
| 2029 \ | |
| 2030 product(intx, BlockZeroingLowLimit, 2048, \ | |
| 2031 "Minimum size in bytes when block zeroing will be used") \ | |
| 2032 \ | |
| 3903 | 2033 product(bool, UseBlockCopy, false, \ |
| 2034 "Use special cpu instructions for block copy") \ | |
| 2035 \ | |
| 2036 product(intx, BlockCopyLowLimit, 2048, \ | |
| 2037 "Minimum size in bytes when block copy will be used") \ | |
| 2038 \ | |
| 941 | 2039 product(bool, PrintRevisitStats, false, \ |
| 2040 "Print revisit (klass and MDO) stack related information") \ | |
| 2041 \ | |
|
2192
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|
2042 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
|
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|
2043 "Enable LowMemoryProtection")) \ |
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|
2044 \ |
| 0 | 2045 product_pd(bool, NeverActAsServerClassMachine, \ |
| 2046 "Never act like a server-class machine") \ | |
| 2047 \ | |
| 2048 product(bool, AlwaysActAsServerClassMachine, false, \ | |
| 2049 "Always act like a server-class machine") \ | |
| 2050 \ | |
| 1064 | 2051 product_pd(uint64_t, MaxRAM, \ |
| 2052 "Real memory size (in bytes) used to set maximum heap size") \ | |
| 2053 \ | |
| 2054 product(uintx, ErgoHeapSizeLimit, 0, \ | |
| 2055 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
| 2056 "MaxRAM / MaxRAMFraction") \ | |
| 2057 \ | |
| 2058 product(uintx, MaxRAMFraction, 4, \ | |
| 2059 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
| 2060 "size") \ | |
| 0 | 2061 \ |
| 2062 product(uintx, DefaultMaxRAMFraction, 4, \ | |
| 1064 | 2063 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
| 2064 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
| 2065 \ | |
| 2066 product(uintx, MinRAMFraction, 2, \ | |
| 2067 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
| 2068 "size on systems with small physical memory size") \ | |
| 2069 \ | |
| 2070 product(uintx, InitialRAMFraction, 64, \ | |
| 2071 "Fraction (1/n) of real memory used for initial heap size") \ | |
| 0 | 2072 \ |
| 2073 product(bool, UseAutoGCSelectPolicy, false, \ | |
| 2074 "Use automatic collection selection policy") \ | |
| 2075 \ | |
| 2076 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
| 2077 "Automatic GC selection pause threshhold in ms") \ | |
| 2078 \ | |
| 2079 product(bool, UseAdaptiveSizePolicy, true, \ | |
| 2080 "Use adaptive generation sizing policies") \ | |
| 2081 \ | |
| 2082 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
| 2083 "Use adaptive survivor sizing policies") \ | |
| 2084 \ | |
| 2085 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
| 2086 "Use adaptive young-old sizing policies at minor collections") \ | |
| 2087 \ | |
| 2088 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
| 2089 "Use adaptive young-old sizing policies at major collections") \ | |
| 2090 \ | |
| 2091 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
| 2092 "Use statistics from System.GC for adaptive size policy") \ | |
| 2093 \ | |
| 2094 product(bool, UseAdaptiveGCBoundary, false, \ | |
| 2095 "Allow young-old boundary to move") \ | |
| 2096 \ | |
| 2097 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
| 2098 "Trace young-old boundary moves") \ | |
| 2099 \ | |
| 2100 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
| 2101 "Resize the virtual spaces of the young or old generations") \ | |
| 2102 \ | |
| 2103 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
| 2104 "Policy for changeing generation size for throughput goals") \ | |
| 2105 \ | |
| 2106 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
| 2107 "Policy for changing generation size for pause goals") \ | |
| 2108 \ | |
| 2109 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
| 2110 "Adjust tenured generation to achive a minor pause goal") \ | |
| 2111 \ | |
| 2112 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
| 2113 "Adjust young generation to achive a major pause goal") \ | |
| 2114 \ | |
| 2115 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
| 2116 "Number of steps where heuristics is used before data is used") \ | |
| 2117 \ | |
| 2118 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
| 2119 "Number of collections before the adaptive sizing is started") \ | |
| 2120 \ | |
| 2121 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
| 1064 | 2122 "Collecton interval for printing information; zero => never") \ |
| 0 | 2123 \ |
| 2124 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
| 2125 "Use adaptive minimum footprint as a goal") \ | |
| 2126 \ | |
| 2127 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
| 2128 "Weight given to exponential resizing, between 0 and 100") \ | |
| 2129 \ | |
| 2130 product(uintx, AdaptiveTimeWeight, 25, \ | |
| 2131 "Weight given to time in adaptive policy, between 0 and 100") \ | |
| 2132 \ | |
| 2133 product(uintx, PausePadding, 1, \ | |
| 2134 "How much buffer to keep for pause time") \ | |
| 2135 \ | |
| 2136 product(uintx, PromotedPadding, 3, \ | |
| 2137 "How much buffer to keep for promotion failure") \ | |
| 2138 \ | |
| 2139 product(uintx, SurvivorPadding, 3, \ | |
| 2140 "How much buffer to keep for survivor overflow") \ | |
| 2141 \ | |
| 2142 product(uintx, AdaptivePermSizeWeight, 20, \ | |
| 2143 "Weight for perm gen exponential resizing, between 0 and 100") \ | |
| 2144 \ | |
| 2145 product(uintx, PermGenPadding, 3, \ | |
| 2146 "How much buffer to keep for perm gen sizing") \ | |
| 2147 \ | |
| 2148 product(uintx, ThresholdTolerance, 10, \ | |
| 2149 "Allowed collection cost difference between generations") \ | |
| 2150 \ | |
| 2151 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
| 1064 | 2152 "If collection costs are within margin, reduce both by full " \ |
| 2153 "delta") \ | |
| 0 | 2154 \ |
| 2155 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
| 2156 "Adaptive size percentage change in young generation") \ | |
| 2157 \ | |
| 2158 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
| 2159 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
| 2160 \ | |
| 2161 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
| 2162 "Decay factor to YoungedGenerationSizeSupplement") \ | |
| 2163 \ | |
| 2164 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
| 2165 "Adaptive size percentage change in tenured generation") \ | |
| 2166 \ | |
| 2167 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
| 2168 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
| 2169 \ | |
| 2170 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
| 2171 "Decay factor to TenuredGenerationSizeIncrement") \ | |
| 2172 \ | |
| 1783 | 2173 product(uintx, MaxGCPauseMillis, max_uintx, \ |
| 751 | 2174 "Adaptive size policy maximum GC pause time goal in msec, " \ |
| 2175 "or (G1 Only) the max. GC time per MMU time slice") \ | |
| 2176 \ | |
|
1610
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|
2177 product(uintx, GCPauseIntervalMillis, 0, \ |
| 751 | 2178 "Time slice for MMU specification") \ |
| 0 | 2179 \ |
| 2180 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
| 2181 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
| 2182 \ | |
| 2183 product(uintx, GCTimeRatio, 99, \ | |
| 2184 "Adaptive size policy application time to GC time ratio") \ | |
| 2185 \ | |
| 2186 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
| 2187 "Adaptive size scale down factor for shrinking") \ | |
| 2188 \ | |
| 2189 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
| 2190 "Adaptive size decays the major cost for long major intervals") \ | |
| 2191 \ | |
| 2192 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
| 2193 "Time scale over which major costs decay") \ | |
| 2194 \ | |
| 2195 product(uintx, MinSurvivorRatio, 3, \ | |
| 2196 "Minimum ratio of young generation/survivor space size") \ | |
| 2197 \ | |
| 2198 product(uintx, InitialSurvivorRatio, 8, \ | |
| 2199 "Initial ratio of eden/survivor space size") \ | |
| 2200 \ | |
| 2201 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
| 2202 "Estimate of footprint other than Java Heap") \ | |
| 2203 \ | |
| 2204 product(bool, UseGCOverheadLimit, true, \ | |
| 2205 "Use policy to limit of proportion of time spent in GC " \ | |
| 2206 "before an OutOfMemory error is thrown") \ | |
| 2207 \ | |
| 2208 product(uintx, GCTimeLimit, 98, \ | |
| 2209 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
| 2210 "error is thrown (used with GCHeapFreeLimit)") \ | |
| 2211 \ | |
| 2212 product(uintx, GCHeapFreeLimit, 2, \ | |
| 2213 "Minimum percentage of free space after a full GC before an " \ | |
| 2214 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
| 2215 \ | |
| 2216 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
| 2217 "Number of consecutive collections before gc time limit fires") \ | |
| 2218 \ | |
| 2219 product(bool, PrintAdaptiveSizePolicy, false, \ | |
| 2220 "Print information about AdaptiveSizePolicy") \ | |
| 2221 \ | |
| 2222 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
| 2223 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
| 2224 \ | |
| 2225 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
| 2226 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
| 2227 \ | |
| 2228 product(intx, PrefetchFieldsAhead, -1, \ | |
| 2229 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
| 2230 \ | |
| 2231 develop(bool, UsePrefetchQueue, true, \ | |
| 2232 "Use the prefetch queue during PS promotion") \ | |
| 2233 \ | |
| 2234 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ | |
| 2235 "Verify system before exiting") \ | |
| 2236 \ | |
| 2237 diagnostic(bool, VerifyBeforeGC, false, \ | |
| 2238 "Verify memory system before GC") \ | |
| 2239 \ | |
| 2240 diagnostic(bool, VerifyAfterGC, false, \ | |
| 2241 "Verify memory system after GC") \ | |
| 2242 \ | |
| 2243 diagnostic(bool, VerifyDuringGC, false, \ | |
| 2244 "Verify memory system during GC (between phases)") \ | |
| 2245 \ | |
| 390 | 2246 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
| 2247 "Enable parallel memory system verification") \ | |
| 2248 \ | |
| 1166 | 2249 diagnostic(bool, DeferInitialCardMark, false, \ |
| 2250 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
| 2251 "may arise from new_pre_store_barrier") \ | |
| 2252 \ | |
| 0 | 2253 diagnostic(bool, VerifyRememberedSets, false, \ |
| 2254 "Verify GC remembered sets") \ | |
| 2255 \ | |
| 2256 diagnostic(bool, VerifyObjectStartArray, true, \ | |
| 2257 "Verify GC object start array if verify before/after") \ | |
| 2258 \ | |
| 2259 product(bool, DisableExplicitGC, false, \ | |
| 2260 "Tells whether calling System.gc() does a full GC") \ | |
| 2261 \ | |
| 2262 notproduct(bool, CheckMemoryInitialization, false, \ | |
| 2263 "Checks memory initialization") \ | |
| 2264 \ | |
| 2265 product(bool, CollectGen0First, false, \ | |
| 2266 "Collect youngest generation before each full GC") \ | |
| 2267 \ | |
| 2268 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
| 2269 "Bind CMS Thread to CPU if possible") \ | |
| 2270 \ | |
| 2271 diagnostic(uintx, CPUForCMSThread, 0, \ | |
| 2272 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
| 2273 \ | |
| 2274 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
| 2275 "Bind GCTaskThreads to CPUs if possible") \ | |
| 2276 \ | |
| 2277 product(bool, UseGCTaskAffinity, false, \ | |
| 2278 "Use worker affinity when asking for GCTasks") \ | |
| 2279 \ | |
| 2280 product(uintx, ProcessDistributionStride, 4, \ | |
| 2281 "Stride through processors when distributing processes") \ | |
| 2282 \ | |
| 2283 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
| 2284 "number of times the coordinator GC thread will sleep while " \ | |
| 2285 "yielding before giving up and resuming GC") \ | |
| 2286 \ | |
| 2287 product(uintx, CMSYieldSleepCount, 0, \ | |
| 2288 "number of times a GC thread (minus the coordinator) " \ | |
| 2289 "will sleep while yielding before giving up and resuming GC") \ | |
| 2290 \ | |
| 2291 /* gc tracing */ \ | |
| 2292 manageable(bool, PrintGC, false, \ | |
| 2293 "Print message at garbage collect") \ | |
| 2294 \ | |
| 2295 manageable(bool, PrintGCDetails, false, \ | |
| 2296 "Print more details at garbage collect") \ | |
| 2297 \ | |
| 2298 manageable(bool, PrintGCDateStamps, false, \ | |
| 2299 "Print date stamps at garbage collect") \ | |
| 2300 \ | |
| 2301 manageable(bool, PrintGCTimeStamps, false, \ | |
| 2302 "Print timestamps at garbage collect") \ | |
| 2303 \ | |
| 2304 product(bool, PrintGCTaskTimeStamps, false, \ | |
| 2305 "Print timestamps for individual gc worker thread tasks") \ | |
| 2306 \ | |
| 2307 develop(intx, ConcGCYieldTimeout, 0, \ | |
| 2308 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
| 2309 \ | |
| 2310 notproduct(bool, TraceMarkSweep, false, \ | |
| 2311 "Trace mark sweep") \ | |
| 2312 \ | |
| 2313 product(bool, PrintReferenceGC, false, \ | |
| 2314 "Print times spent handling reference objects during GC " \ | |
| 2315 " (enabled only when PrintGCDetails)") \ | |
| 2316 \ | |
| 2317 develop(bool, TraceReferenceGC, false, \ | |
| 2318 "Trace handling of soft/weak/final/phantom references") \ | |
| 2319 \ | |
| 2320 develop(bool, TraceFinalizerRegistration, false, \ | |
| 2321 "Trace registration of final references") \ | |
| 2322 \ | |
| 2323 notproduct(bool, TraceScavenge, false, \ | |
| 2324 "Trace scavenge") \ | |
| 2325 \ | |
| 2326 product_rw(bool, TraceClassLoading, false, \ | |
| 2327 "Trace all classes loaded") \ | |
| 2328 \ | |
| 2329 product(bool, TraceClassLoadingPreorder, false, \ | |
| 2330 "Trace all classes loaded in order referenced (not loaded)") \ | |
| 2331 \ | |
| 2332 product_rw(bool, TraceClassUnloading, false, \ | |
| 2333 "Trace unloading of classes") \ | |
| 2334 \ | |
| 2335 product_rw(bool, TraceLoaderConstraints, false, \ | |
| 2336 "Trace loader constraints") \ | |
| 2337 \ | |
| 2338 product(bool, TraceGen0Time, false, \ | |
| 2339 "Trace accumulated time for Gen 0 collection") \ | |
| 2340 \ | |
| 2341 product(bool, TraceGen1Time, false, \ | |
| 2342 "Trace accumulated time for Gen 1 collection") \ | |
| 2343 \ | |
| 2344 product(bool, PrintTenuringDistribution, false, \ | |
| 2345 "Print tenuring age information") \ | |
| 2346 \ | |
| 2347 product_rw(bool, PrintHeapAtGC, false, \ | |
| 2348 "Print heap layout before and after each GC") \ | |
| 2349 \ | |
|
838
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779
diff
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|
2350 product_rw(bool, PrintHeapAtGCExtended, false, \ |
|
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
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779
diff
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|
2351 "Prints extended information about the layout of the heap " \ |
|
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
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parents:
779
diff
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|
2352 "when -XX:+PrintHeapAtGC is set") \ |
|
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
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parents:
779
diff
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|
2353 \ |
| 0 | 2354 product(bool, PrintHeapAtSIGBREAK, true, \ |
| 2355 "Print heap layout in response to SIGBREAK") \ | |
| 2356 \ | |
|
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2357 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
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parents:
570
diff
changeset
|
2358 "Print a class histogram before any major stop-world GC") \ |
|
c6c601a0f2d6
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parents:
570
diff
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|
2359 \ |
|
c6c601a0f2d6
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parents:
570
diff
changeset
|
2360 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
|
c6c601a0f2d6
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parents:
570
diff
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|
2361 "Print a class histogram after any major stop-world GC") \ |
|
c6c601a0f2d6
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diff
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|
2362 \ |
| 0 | 2363 manageable(bool, PrintClassHistogram, false, \ |
| 2364 "Print a histogram of class instances") \ | |
| 2365 \ | |
| 2366 develop(bool, TraceWorkGang, false, \ | |
| 2367 "Trace activities of work gangs") \ | |
| 2368 \ | |
| 2369 product(bool, TraceParallelOldGCTasks, false, \ | |
| 2370 "Trace multithreaded GC activity") \ | |
| 2371 \ | |
| 2372 develop(bool, TraceBlockOffsetTable, false, \ | |
| 2373 "Print BlockOffsetTable maps") \ | |
| 2374 \ | |
| 2375 develop(bool, TraceCardTableModRefBS, false, \ | |
| 2376 "Print CardTableModRefBS maps") \ | |
| 2377 \ | |
| 2378 develop(bool, TraceGCTaskManager, false, \ | |
| 2379 "Trace actions of the GC task manager") \ | |
| 2380 \ | |
| 2381 develop(bool, TraceGCTaskQueue, false, \ | |
| 2382 "Trace actions of the GC task queues") \ | |
| 2383 \ | |
|
4095
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jmasa
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4067
diff
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|
2384 diagnostic(bool, TraceGCTaskThread, false, \ |
| 0 | 2385 "Trace actions of the GC task threads") \ |
| 2386 \ | |
| 2387 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
| 2388 "Print the time taken by each parallel old gc phase." \ | |
| 2389 "PrintGCDetails must also be enabled.") \ | |
| 2390 \ | |
| 2391 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
| 2392 "Trace parallel old gc marking phase") \ | |
| 2393 \ | |
| 2394 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
| 2395 "Trace parallel old gc summary phase") \ | |
| 2396 \ | |
| 2397 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
| 2398 "Trace parallel old gc compaction phase") \ | |
| 2399 \ | |
| 2400 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
| 2401 "Trace parallel old gc dense prefix computation") \ | |
| 2402 \ | |
| 2403 develop(bool, IgnoreLibthreadGPFault, false, \ | |
| 2404 "Suppress workaround for libthread GP fault") \ | |
| 2405 \ | |
|
139
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6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
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|
2406 product(bool, PrintJNIGCStalls, false, \ |
|
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2407 "Print diagnostic message when GC is stalled" \ |
|
c0492d52d55b
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apetrusenko
parents:
95
diff
changeset
|
2408 "by JNI critical section") \ |
|
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2409 \ |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2410 /* GC log rotation setting */ \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
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|
2411 \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
changeset
|
2412 product(bool, UseGCLogFileRotation, false, \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2413 "Prevent large gclog file for long running app. " \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2414 "Requires -Xloggc:<filename>") \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2415 \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2416 product(uintx, NumberOfGCLogFiles, 0, \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2417 "Number of gclog files in rotation, " \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2418 "Default: 0, no rotation") \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
changeset
|
2419 \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
changeset
|
2420 product(uintx, GCLogFileSize, 0, \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
changeset
|
2421 "GC log file size, Default: 0 bytes, no rotation " \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
changeset
|
2422 "Only valid with UseGCLogFileRotation") \ |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3745
diff
changeset
|
2423 \ |
| 0 | 2424 /* JVMTI heap profiling */ \ |
| 2425 \ | |
| 2426 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
| 2427 "Trace JVMTI object tagging calls") \ | |
| 2428 \ | |
| 2429 diagnostic(bool, VerifyBeforeIteration, false, \ | |
| 2430 "Verify memory system before JVMTI iteration") \ | |
| 2431 \ | |
| 2432 /* compiler interface */ \ | |
| 2433 \ | |
| 2434 develop(bool, CIPrintCompilerName, false, \ | |
| 2435 "when CIPrint is active, print the name of the active compiler") \ | |
| 2436 \ | |
| 2437 develop(bool, CIPrintCompileQueue, false, \ | |
| 2438 "display the contents of the compile queue whenever a " \ | |
| 2439 "compilation is enqueued") \ | |
| 2440 \ | |
| 2441 develop(bool, CIPrintRequests, false, \ | |
| 2442 "display every request for compilation") \ | |
| 2443 \ | |
| 2444 product(bool, CITime, false, \ | |
| 2445 "collect timing information for compilation") \ | |
| 2446 \ | |
| 2447 develop(bool, CITimeEach, false, \ | |
| 2448 "display timing information after each successful compilation") \ | |
| 2449 \ | |
| 2450 develop(bool, CICountOSR, true, \ | |
| 2451 "use a separate counter when assigning ids to osr compilations") \ | |
| 2452 \ | |
| 2453 develop(bool, CICompileNatives, true, \ | |
| 2454 "compile native methods if supported by the compiler") \ | |
| 2455 \ | |
| 2456 develop_pd(bool, CICompileOSR, \ | |
| 2457 "compile on stack replacement methods if supported by the " \ | |
| 2458 "compiler") \ | |
| 2459 \ | |
| 2460 develop(bool, CIPrintMethodCodes, false, \ | |
| 2461 "print method bytecodes of the compiled code") \ | |
| 2462 \ | |
| 2463 develop(bool, CIPrintTypeFlow, false, \ | |
| 2464 "print the results of ciTypeFlow analysis") \ | |
| 2465 \ | |
| 2466 develop(bool, CITraceTypeFlow, false, \ | |
| 2467 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
| 2468 \ | |
| 2469 develop(intx, CICloneLoopTestLimit, 100, \ | |
| 2470 "size limit for blocks heuristically cloned in ciTypeFlow") \ | |
| 2471 \ | |
| 2403 | 2472 develop(intx, OSROnlyBCI, -1, \ |
| 2473 "OSR only at this bci. Negative values mean exclude that bci") \ | |
| 2474 \ | |
| 0 | 2475 /* temp diagnostics */ \ |
| 2476 \ | |
| 2477 diagnostic(bool, TraceRedundantCompiles, false, \ | |
| 2478 "Have compile broker print when a request already in the queue is"\ | |
| 2479 " requested again") \ | |
| 2480 \ | |
| 2481 diagnostic(bool, InitialCompileFast, false, \ | |
| 2482 "Initial compile at CompLevel_fast_compile") \ | |
| 2483 \ | |
| 2484 diagnostic(bool, InitialCompileReallyFast, false, \ | |
| 2485 "Initial compile at CompLevel_really_fast_compile (no profile)") \ | |
| 2486 \ | |
| 2487 diagnostic(bool, FullProfileOnReInterpret, true, \ | |
| 2488 "On re-interpret unc-trap compile next at CompLevel_fast_compile")\ | |
| 2489 \ | |
| 2490 /* compiler */ \ | |
| 2491 \ | |
| 2492 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
| 2493 "Number of compiler threads to run") \ | |
| 2494 \ | |
| 2495 product(intx, CompilationPolicyChoice, 0, \ | |
| 2496 "which compilation policy (0/1)") \ | |
| 2497 \ | |
| 2498 develop(bool, UseStackBanging, true, \ | |
| 2499 "use stack banging for stack overflow checks (required for " \ | |
| 2500 "proper StackOverflow handling; disable only to measure cost " \ | |
| 2501 "of stackbanging)") \ | |
| 2502 \ | |
| 2503 develop(bool, Use24BitFPMode, true, \ | |
| 2504 "Set 24-bit FPU mode on a per-compile basis ") \ | |
| 2505 \ | |
| 2506 develop(bool, Use24BitFP, true, \ | |
| 2507 "use FP instructions that produce 24-bit precise results") \ | |
| 2508 \ | |
| 2509 develop(bool, UseStrictFP, true, \ | |
| 2510 "use strict fp if modifier strictfp is set") \ | |
| 2511 \ | |
| 2512 develop(bool, GenerateSynchronizationCode, true, \ | |
| 2513 "generate locking/unlocking code for synchronized methods and " \ | |
| 2514 "monitors") \ | |
| 2515 \ | |
| 2516 develop(bool, GenerateCompilerNullChecks, true, \ | |
| 2517 "Generate explicit null checks for loads/stores/calls") \ | |
| 2518 \ | |
| 2519 develop(bool, GenerateRangeChecks, true, \ | |
| 2520 "Generate range checks for array accesses") \ | |
| 2521 \ | |
| 2522 develop_pd(bool, ImplicitNullChecks, \ | |
| 2523 "generate code for implicit null checks") \ | |
| 2524 \ | |
| 2525 product(bool, PrintSafepointStatistics, false, \ | |
| 2526 "print statistics about safepoint synchronization") \ | |
| 2527 \ | |
| 2528 product(intx, PrintSafepointStatisticsCount, 300, \ | |
| 2529 "total number of safepoint statistics collected " \ | |
| 2530 "before printing them out") \ | |
| 2531 \ | |
| 2532 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
| 2533 "print safepoint statistics only when safepoint takes" \ | |
| 2534 " more than PrintSafepointSatisticsTimeout in millis") \ | |
| 2535 \ | |
|
1321
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2536 product(bool, TraceSafepointCleanupTime, false, \ |
|
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2537 "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
|
2538 " safepoint") \ |
|
0f6600cee529
6934758: Expose the break down of clean up task time during safepoint.
xlu
parents:
1288
diff
changeset
|
2539 \ |
| 0 | 2540 develop(bool, InlineAccessors, true, \ |
| 2541 "inline accessor methods (get/set)") \ | |
| 2542 \ | |
| 2543 product(bool, Inline, true, \ | |
| 2544 "enable inlining") \ | |
| 2545 \ | |
| 2546 product(bool, ClipInlining, true, \ | |
| 2547 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
| 2548 \ | |
| 2549 develop(bool, UseCHA, true, \ | |
| 2550 "enable CHA") \ | |
| 2551 \ | |
| 2552 product(bool, UseTypeProfile, true, \ | |
| 2553 "Check interpreter profile for historically monomorphic calls") \ | |
| 2554 \ | |
| 2555 product(intx, TypeProfileMajorReceiverPercent, 90, \ | |
| 2556 "% of major receiver type to all profiled receivers") \ | |
| 2557 \ | |
| 2558 notproduct(bool, TimeCompiler, false, \ | |
| 2559 "time the compiler") \ | |
| 2560 \ | |
| 2561 notproduct(bool, TimeCompiler2, false, \ | |
| 2562 "detailed time the compiler (requires +TimeCompiler)") \ | |
| 2563 \ | |
| 2564 diagnostic(bool, PrintInlining, false, \ | |
| 2565 "prints inlining optimizations") \ | |
| 2566 \ | |
| 2567 diagnostic(bool, PrintIntrinsics, false, \ | |
| 2568 "prints attempted and successful inlining of intrinsics") \ | |
| 2569 \ | |
|
775
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2570 product(bool, UseCountLeadingZerosInstruction, false, \ |
|
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2571 "Use count leading zeros instruction") \ |
|
93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
twisti
parents:
726
diff
changeset
|
2572 \ |
|
643
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2573 product(bool, UsePopCountInstruction, false, \ |
|
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2574 "Use population count instruction") \ |
|
c771b7f43bbf
6378821: bitCount() should use POPC on SPARC processors and AMD+10h
twisti
parents:
642
diff
changeset
|
2575 \ |
| 0 | 2576 diagnostic(ccstrlist, DisableIntrinsic, "", \ |
| 2577 "do not expand intrinsics whose (internal) names appear here") \ | |
| 2578 \ | |
| 2579 develop(bool, StressReflectiveCode, false, \ | |
| 2580 "Use inexact types at allocations, etc., to test reflection") \ | |
| 2581 \ | |
| 2582 develop(bool, EagerInitialization, false, \ | |
| 2583 "Eagerly initialize classes if possible") \ | |
| 2584 \ | |
| 2585 develop(bool, TraceMethodReplacement, false, \ | |
| 2586 "Print when methods are replaced do to recompilation") \ | |
| 2587 \ | |
| 2588 develop(bool, PrintMethodFlushing, false, \ | |
| 2589 "print the nmethods being flushed") \ | |
| 2590 \ | |
| 2591 notproduct(bool, LogMultipleMutexLocking, false, \ | |
| 2592 "log locking and unlocking of mutexes (only if multiple locks " \ | |
| 2593 "are held)") \ | |
| 2594 \ | |
| 2595 develop(bool, UseRelocIndex, false, \ | |
| 2596 "use an index to speed random access to relocations") \ | |
| 2597 \ | |
| 2598 develop(bool, StressCodeBuffers, false, \ | |
| 2599 "Exercise code buffer expansion and other rare state changes") \ | |
| 2600 \ | |
| 2601 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
| 2602 "Generate extra debugging info for non-safepoints in nmethods") \ | |
| 2603 \ | |
| 2604 diagnostic(bool, DebugInlinedCalls, true, \ | |
| 2605 "If false, restricts profiled locations to the root method only") \ | |
| 2606 \ | |
| 4066 | 2607 product(bool, PrintVMOptions, false, \ |
| 1150 | 2608 "Print flags that appeared on the command line") \ |
| 0 | 2609 \ |
| 564 | 2610 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
| 2611 "Ignore unrecognized VM options") \ | |
| 2612 \ | |
| 1150 | 2613 product(bool, PrintCommandLineFlags, false, \ |
| 2614 "Print flags specified on command line or set by ergonomics") \ | |
| 2615 \ | |
| 2616 product(bool, PrintFlagsInitial, false, \ | |
| 2617 "Print all VM flags before argument processing and exit VM") \ | |
| 2618 \ | |
| 2619 product(bool, PrintFlagsFinal, false, \ | |
| 2620 "Print all VM flags after argument and ergonomic processing") \ | |
| 2621 \ | |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2622 notproduct(bool, PrintFlagsWithComments, false, \ |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
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1749
diff
changeset
|
2623 "Print all VM flags with default values and descriptions and exit")\ |
|
6ee479178066
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1749
diff
changeset
|
2624 \ |
| 0 | 2625 diagnostic(bool, SerializeVMOutput, true, \ |
| 2626 "Use a mutex to serialize output to tty and hotspot.log") \ | |
| 2627 \ | |
| 2628 diagnostic(bool, DisplayVMOutput, true, \ | |
| 2629 "Display all VM output on the tty, independently of LogVMOutput") \ | |
| 2630 \ | |
| 2631 diagnostic(bool, LogVMOutput, trueInDebug, \ | |
| 2632 "Save VM output to hotspot.log, or to LogFile") \ | |
| 2633 \ | |
| 2634 diagnostic(ccstr, LogFile, NULL, \ | |
| 2635 "If LogVMOutput is on, save VM output to this file [hotspot.log]") \ | |
| 2636 \ | |
| 2637 product(ccstr, ErrorFile, NULL, \ | |
| 2638 "If an error occurs, save the error data to this file " \ | |
| 2639 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
| 2640 \ | |
| 2641 product(bool, DisplayVMOutputToStderr, false, \ | |
| 2642 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
| 2643 \ | |
| 2644 product(bool, DisplayVMOutputToStdout, false, \ | |
| 2645 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
| 2646 \ | |
| 2647 product(bool, UseHeavyMonitors, false, \ | |
| 2648 "use heavyweight instead of lightweight Java monitors") \ | |
| 2649 \ | |
| 2650 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ | |
| 2651 "print histogram of the symbol table") \ | |
| 2652 \ | |
| 2653 notproduct(bool, ExitVMOnVerifyError, false, \ | |
| 2654 "standard exit from VM if bytecode verify error " \ | |
| 2655 "(only in debug mode)") \ | |
| 2656 \ | |
| 2657 notproduct(ccstr, AbortVMOnException, NULL, \ | |
| 2658 "Call fatal if this exception is thrown. Example: " \ | |
| 2659 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
| 2660 \ | |
|
1684
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2661 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
|
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2662 "Call fatal if the exception pointed by AbortVMOnException " \ |
|
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2663 "has this message.") \ |
|
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2664 \ |
| 0 | 2665 develop(bool, DebugVtables, false, \ |
| 2666 "add debugging code to vtable dispatch") \ | |
| 2667 \ | |
| 2668 develop(bool, PrintVtables, false, \ | |
| 2669 "print vtables when printing klass") \ | |
| 2670 \ | |
| 2671 notproduct(bool, PrintVtableStats, false, \ | |
| 2672 "print vtables stats at end of run") \ | |
| 2673 \ | |
| 2674 develop(bool, TraceCreateZombies, false, \ | |
| 2675 "trace creation of zombie nmethods") \ | |
| 2676 \ | |
| 2677 notproduct(bool, IgnoreLockingAssertions, false, \ | |
| 2678 "disable locking assertions (for speed)") \ | |
| 2679 \ | |
| 2680 notproduct(bool, VerifyLoopOptimizations, false, \ | |
| 2681 "verify major loop optimizations") \ | |
| 2682 \ | |
| 2683 product(bool, RangeCheckElimination, true, \ | |
| 2684 "Split loop iterations to eliminate range checks") \ | |
| 2685 \ | |
| 2686 develop_pd(bool, UncommonNullCast, \ | |
| 2687 "track occurrences of null in casts; adjust compiler tactics") \ | |
| 2688 \ | |
| 2689 develop(bool, TypeProfileCasts, true, \ | |
| 2690 "treat casts like calls for purposes of type profiling") \ | |
| 2691 \ | |
| 2692 develop(bool, MonomorphicArrayCheck, true, \ | |
| 2693 "Uncommon-trap array store checks that require full type check") \ | |
| 2694 \ | |
|
1746
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|
2695 diagnostic(bool, ProfileDynamicTypes, true, \ |
|
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|
2696 "do extra type profiling and use it more aggressively") \ |
|
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|
2697 \ |
| 0 | 2698 develop(bool, DelayCompilationDuringStartup, true, \ |
| 2699 "Delay invoking the compiler until main application class is " \ | |
| 2700 "loaded") \ | |
| 2701 \ | |
| 2702 develop(bool, CompileTheWorld, false, \ | |
| 2703 "Compile all methods in all classes in bootstrap class path " \ | |
| 2704 "(stress test)") \ | |
| 2705 \ | |
| 2706 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
| 2707 "Preload all classes used by a class before start loading") \ | |
| 2708 \ | |
|
1188
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|
2709 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
|
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|
2710 "Force a safepoint every n compiles so sweeper can keep up") \ |
|
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|
2711 \ |
| 0 | 2712 develop(bool, TraceIterativeGVN, false, \ |
| 2713 "Print progress during Iterative Global Value Numbering") \ | |
| 2714 \ | |
| 2715 develop(bool, FillDelaySlots, true, \ | |
| 2716 "Fill delay slots (on SPARC only)") \ | |
| 2717 \ | |
| 2718 develop(bool, VerifyIterativeGVN, false, \ | |
| 2719 "Verify Def-Use modifications during sparse Iterative Global " \ | |
| 2720 "Value Numbering") \ | |
| 2721 \ | |
| 2722 notproduct(bool, TracePhaseCCP, false, \ | |
| 2723 "Print progress during Conditional Constant Propagation") \ | |
| 2724 \ | |
| 2725 develop(bool, TimeLivenessAnalysis, false, \ | |
| 2726 "Time computation of bytecode liveness analysis") \ | |
| 2727 \ | |
| 2728 develop(bool, TraceLivenessGen, false, \ | |
| 2729 "Trace the generation of liveness analysis information") \ | |
| 2730 \ | |
| 2731 notproduct(bool, TraceLivenessQuery, false, \ | |
| 2732 "Trace queries of liveness analysis information") \ | |
| 2733 \ | |
| 2734 notproduct(bool, CollectIndexSetStatistics, false, \ | |
| 2735 "Collect information about IndexSets") \ | |
| 2736 \ | |
| 2737 develop(bool, PrintDominators, false, \ | |
| 2738 "Print out dominator trees for GVN") \ | |
| 2739 \ | |
| 2740 develop(bool, UseLoopSafepoints, true, \ | |
| 2741 "Generate Safepoint nodes in every loop") \ | |
| 2742 \ | |
| 2743 notproduct(bool, TraceCISCSpill, false, \ | |
| 2744 "Trace allocators use of cisc spillable instructions") \ | |
| 2745 \ | |
| 2746 notproduct(bool, TraceSpilling, false, \ | |
| 2747 "Trace spilling") \ | |
| 2748 \ | |
| 2749 product(bool, SplitIfBlocks, true, \ | |
| 2750 "Clone compares and control flow through merge points to fold " \ | |
| 2751 "some branches") \ | |
| 2752 \ | |
| 2753 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
| 2754 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
| 2755 "Inline allocations larger than this in doublewords must go slow")\ | |
| 2756 \ | |
| 2757 product(bool, AggressiveOpts, false, \ | |
| 2758 "Enable aggressive optimizations - see arguments.cpp") \ | |
| 2759 \ | |
|
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|
2760 product(bool, UseStringCache, false, \ |
|
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|
2761 "Enable String cache capabilities on String.java") \ |
|
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|
2762 \ |
| 0 | 2763 /* statistics */ \ |
| 2764 develop(bool, CountCompiledCalls, false, \ | |
| 2765 "counts method invocations") \ | |
| 2766 \ | |
| 2767 notproduct(bool, CountRuntimeCalls, false, \ | |
| 2768 "counts VM runtime calls") \ | |
| 2769 \ | |
| 2770 develop(bool, CountJNICalls, false, \ | |
| 2771 "counts jni method invocations") \ | |
| 2772 \ | |
| 2773 notproduct(bool, CountJVMCalls, false, \ | |
| 2774 "counts jvm method invocations") \ | |
| 2775 \ | |
| 2776 notproduct(bool, CountRemovableExceptions, false, \ | |
| 2777 "count exceptions that could be replaced by branches due to " \ | |
| 2778 "inlining") \ | |
| 2779 \ | |
| 2780 notproduct(bool, ICMissHistogram, false, \ | |
| 2781 "produce histogram of IC misses") \ | |
| 2782 \ | |
| 2783 notproduct(bool, PrintClassStatistics, false, \ | |
| 2784 "prints class statistics at end of run") \ | |
| 2785 \ | |
| 2786 notproduct(bool, PrintMethodStatistics, false, \ | |
| 2787 "prints method statistics at end of run") \ | |
| 2788 \ | |
| 2789 /* interpreter */ \ | |
| 2790 develop(bool, ClearInterpreterLocals, false, \ | |
| 2791 "Always clear local variables of interpreter activations upon " \ | |
| 2792 "entry") \ | |
| 2793 \ | |
| 2794 product_pd(bool, RewriteBytecodes, \ | |
| 2795 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
| 2796 \ | |
| 2797 product_pd(bool, RewriteFrequentPairs, \ | |
| 2798 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
| 2799 \ | |
|
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|
2800 diagnostic(bool, PrintInterpreter, false, \ |
| 0 | 2801 "Prints the generated interpreter code") \ |
| 2802 \ | |
| 2803 product(bool, UseInterpreter, true, \ | |
| 2804 "Use interpreter for non-compiled methods") \ | |
| 2805 \ | |
| 2806 develop(bool, UseFastSignatureHandlers, true, \ | |
| 2807 "Use fast signature handlers for native calls") \ | |
| 2808 \ | |
| 2809 develop(bool, UseV8InstrsOnly, false, \ | |
| 2810 "Use SPARC-V8 Compliant instruction subset") \ | |
| 2811 \ | |
| 2812 product(bool, UseNiagaraInstrs, false, \ | |
| 2813 "Use Niagara-efficient instruction subset") \ | |
| 2814 \ | |
| 2815 develop(bool, UseCASForSwap, false, \ | |
| 2816 "Do not use swap instructions, but only CAS (in a loop) on SPARC")\ | |
| 2817 \ | |
| 2818 product(bool, UseLoopCounter, true, \ | |
| 2819 "Increment invocation counter on backward branch") \ | |
| 2820 \ | |
| 2821 product(bool, UseFastEmptyMethods, true, \ | |
| 2822 "Use fast method entry code for empty methods") \ | |
| 2823 \ | |
| 2824 product(bool, UseFastAccessorMethods, true, \ | |
| 2825 "Use fast method entry code for accessor methods") \ | |
| 2826 \ | |
| 2827 product_pd(bool, UseOnStackReplacement, \ | |
| 2828 "Use on stack replacement, calls runtime if invoc. counter " \ | |
| 2829 "overflows in loop") \ | |
| 2830 \ | |
| 2831 notproduct(bool, TraceOnStackReplacement, false, \ | |
| 2832 "Trace on stack replacement") \ | |
| 2833 \ | |
| 2834 develop(bool, PoisonOSREntry, true, \ | |
| 2835 "Detect abnormal calls to OSR code") \ | |
| 2836 \ | |
| 2837 product_pd(bool, PreferInterpreterNativeStubs, \ | |
| 2838 "Use always interpreter stubs for native methods invoked via " \ | |
| 2839 "interpreter") \ | |
| 2840 \ | |
| 2841 develop(bool, CountBytecodes, false, \ | |
| 2842 "Count number of bytecodes executed") \ | |
| 2843 \ | |
| 2844 develop(bool, PrintBytecodeHistogram, false, \ | |
| 2845 "Print histogram of the executed bytecodes") \ | |
| 2846 \ | |
| 2847 develop(bool, PrintBytecodePairHistogram, false, \ | |
| 2848 "Print histogram of the executed bytecode pairs") \ | |
| 2849 \ | |
|
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|
2850 diagnostic(bool, PrintSignatureHandlers, false, \ |
| 0 | 2851 "Print code generated for native method signature handlers") \ |
| 2852 \ | |
| 2853 develop(bool, VerifyOops, false, \ | |
| 2854 "Do plausibility checks for oops") \ | |
| 2855 \ | |
| 2856 develop(bool, CheckUnhandledOops, false, \ | |
| 2857 "Check for unhandled oops in VM code") \ | |
| 2858 \ | |
| 2859 develop(bool, VerifyJNIFields, trueInDebug, \ | |
| 2860 "Verify jfieldIDs for instance fields") \ | |
| 2861 \ | |
| 2862 notproduct(bool, VerifyJNIEnvThread, false, \ | |
| 2863 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
| 2864 "from JNI") \ | |
| 2865 \ | |
| 2866 develop(bool, VerifyFPU, false, \ | |
| 2867 "Verify FPU state (check for NaN's, etc.)") \ | |
| 2868 \ | |
| 2869 develop(bool, VerifyThread, false, \ | |
| 2870 "Watch the thread register for corruption (SPARC only)") \ | |
| 2871 \ | |
| 2872 develop(bool, VerifyActivationFrameSize, false, \ | |
| 2873 "Verify that activation frame didn't become smaller than its " \ | |
| 2874 "minimal size") \ | |
| 2875 \ | |
| 2876 develop(bool, TraceFrequencyInlining, false, \ | |
| 2877 "Trace frequency based inlining") \ | |
| 2878 \ | |
| 2879 notproduct(bool, TraceTypeProfile, false, \ | |
| 2880 "Trace type profile") \ | |
| 2881 \ | |
| 2882 develop_pd(bool, InlineIntrinsics, \ | |
| 2883 "Inline intrinsics that can be statically resolved") \ | |
| 2884 \ | |
| 2885 product_pd(bool, ProfileInterpreter, \ | |
| 2886 "Profile at the bytecode level during interpretation") \ | |
| 2887 \ | |
| 2888 develop_pd(bool, ProfileTraps, \ | |
| 2889 "Profile deoptimization traps at the bytecode level") \ | |
| 2890 \ | |
| 2891 product(intx, ProfileMaturityPercentage, 20, \ | |
| 2892 "number of method invocations/branches (expressed as % of " \ | |
| 2893 "CompileThreshold) before using the method's profile") \ | |
| 2894 \ | |
| 2895 develop(bool, PrintMethodData, false, \ | |
| 2896 "Print the results of +ProfileInterpreter at end of run") \ | |
| 2897 \ | |
| 2898 develop(bool, VerifyDataPointer, trueInDebug, \ | |
| 2899 "Verify the method data pointer during interpreter profiling") \ | |
| 2900 \ | |
| 2901 develop(bool, VerifyCompiledCode, false, \ | |
| 2902 "Include miscellaneous runtime verifications in nmethod code; " \ | |
| 1064 | 2903 "default off because it disturbs nmethod size heuristics") \ |
| 0 | 2904 \ |
|
1119
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|
2905 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
|
547f81740344
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|
2906 "Manually make GC thread crash then dump java stack trace; " \ |
|
547f81740344
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diff
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|
2907 "Test only") \ |
| 0 | 2908 \ |
| 2909 /* compilation */ \ | |
| 2910 product(bool, UseCompiler, true, \ | |
| 2911 "use compilation") \ | |
| 2912 \ | |
| 2913 develop(bool, TraceCompilationPolicy, false, \ | |
| 2914 "Trace compilation policy") \ | |
| 2915 \ | |
| 2916 develop(bool, TimeCompilationPolicy, false, \ | |
| 2917 "Time the compilation policy") \ | |
| 2918 \ | |
| 2919 product(bool, UseCounterDecay, true, \ | |
| 2920 "adjust recompilation counters") \ | |
| 2921 \ | |
| 2922 develop(intx, CounterHalfLifeTime, 30, \ | |
| 2923 "half-life time of invocation counters (in secs)") \ | |
| 2924 \ | |
| 2925 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
| 2926 "Min. ms. between invocation of CounterDecay") \ | |
| 2927 \ | |
| 2928 product(bool, AlwaysCompileLoopMethods, false, \ | |
| 2929 "when using recompilation, never interpret methods " \ | |
| 2930 "containing loops") \ | |
| 2931 \ | |
| 2932 product(bool, DontCompileHugeMethods, true, \ | |
| 2933 "don't compile methods > HugeMethodLimit") \ | |
| 2934 \ | |
| 2935 /* Bytecode escape analysis estimation. */ \ | |
| 2936 product(bool, EstimateArgEscape, true, \ | |
| 2937 "Analyze bytecodes to estimate escape state of arguments") \ | |
| 2938 \ | |
| 2939 product(intx, BCEATraceLevel, 0, \ | |
| 2940 "How much tracing to do of bytecode escape analysis estimates") \ | |
| 2941 \ | |
| 2942 product(intx, MaxBCEAEstimateLevel, 5, \ | |
| 2943 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
| 2944 \ | |
| 2945 product(intx, MaxBCEAEstimateSize, 150, \ | |
| 2946 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
| 2947 \ | |
| 2948 product(intx, AllocatePrefetchStyle, 1, \ | |
| 2949 "0 = no prefetch, " \ | |
| 2950 "1 = prefetch instructions for each allocation, " \ | |
|
1367
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|
2951 "2 = use TLAB watermark to gate allocation prefetch, " \ |
|
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|
2952 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
| 0 | 2953 \ |
| 2954 product(intx, AllocatePrefetchDistance, -1, \ | |
| 2955 "Distance to prefetch ahead of allocation pointer") \ | |
| 2956 \ | |
| 3854 | 2957 product(intx, AllocatePrefetchLines, 3, \ |
| 2958 "Number of lines to prefetch ahead of array allocation pointer") \ | |
| 2959 \ | |
| 2960 product(intx, AllocateInstancePrefetchLines, 1, \ | |
| 2961 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
| 0 | 2962 \ |
| 2963 product(intx, AllocatePrefetchStepSize, 16, \ | |
| 2964 "Step size in bytes of sequential prefetch instructions") \ | |
| 2965 \ | |
| 2966 product(intx, AllocatePrefetchInstr, 0, \ | |
| 2967 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
| 2968 \ | |
| 2969 product(intx, ReadPrefetchInstr, 0, \ | |
| 2970 "Prefetch instruction to prefetch ahead") \ | |
| 2971 \ | |
| 3903 | 2972 product(uintx, ArraycopySrcPrefetchDistance, 0, \ |
| 2973 "Distance to prefetch source array in arracopy") \ | |
| 2974 \ | |
| 2975 product(uintx, ArraycopyDstPrefetchDistance, 0, \ | |
| 2976 "Distance to prefetch destination array in arracopy") \ | |
| 2977 \ | |
| 0 | 2978 /* deoptimization */ \ |
| 2979 develop(bool, TraceDeoptimization, false, \ | |
| 2980 "Trace deoptimization") \ | |
| 2981 \ | |
| 2982 develop(bool, DebugDeoptimization, false, \ | |
| 2983 "Tracing various information while debugging deoptimization") \ | |
| 2984 \ | |
| 2985 product(intx, SelfDestructTimer, 0, \ | |
| 2986 "Will cause VM to terminate after a given time (in minutes) " \ | |
| 2987 "(0 means off)") \ | |
| 2988 \ | |
| 2989 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
| 2990 "Max. no. of lines in the stack trace for Java exceptions " \ | |
| 2991 "(0 means all)") \ | |
| 2992 \ | |
|
3328
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3255
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|
2993 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
| 0 | 2994 "Guarantee a safepoint (at least) every so many milliseconds " \ |
|
2192
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|
2995 "(0 means none)")) \ |
|
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|
2996 \ |
|
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|
2997 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
|
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|
2998 "Guarantee a safepoint (at least) every so many milliseconds " \ |
|
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|
2999 "(0 means none)")) \ |
| 0 | 3000 \ |
| 3001 product(intx, SafepointTimeoutDelay, 10000, \ | |
| 3002 "Delay in milliseconds for option SafepointTimeout") \ | |
| 3003 \ | |
| 3004 product(intx, NmethodSweepFraction, 4, \ | |
| 3005 "Number of invocations of sweeper to cover all nmethods") \ | |
| 3006 \ | |
|
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|
3007 product(intx, NmethodSweepCheckInterval, 5, \ |
|
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|
3008 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
|
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|
3009 \ |
|
3384
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|
3010 notproduct(bool, LogSweeper, false, \ |
|
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|
3011 "Keep a ring buffer of sweeper activity") \ |
|
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|
3012 \ |
|
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3373
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|
3013 notproduct(intx, SweeperLogEntries, 1024, \ |
|
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3373
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|
3014 "Number of records in the ring buffer of sweeper activity") \ |
|
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|
3015 \ |
| 0 | 3016 notproduct(intx, MemProfilingInterval, 500, \ |
| 3017 "Time between each invocation of the MemProfiler") \ | |
| 3018 \ | |
| 3019 develop(intx, MallocCatchPtr, -1, \ | |
| 3020 "Hit breakpoint when mallocing/freeing this pointer") \ | |
| 3021 \ | |
| 3022 notproduct(intx, AssertRepeat, 1, \ | |
| 3023 "number of times to evaluate expression in assert " \ | |
| 3024 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
| 3025 \ | |
| 3026 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
| 3027 "List of assertions (file:line) to muzzle") \ | |
| 3028 \ | |
| 3029 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
| 3030 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
| 3031 "is used") \ | |
| 3032 \ | |
| 3033 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
| 3034 "Threshold for total handle allocation when " \ | |
| 3035 "+TraceHandleAllocation is used") \ | |
| 3036 \ | |
| 3037 develop(intx, StackPrintLimit, 100, \ | |
| 3038 "number of stack frames to print in VM-level stack dump") \ | |
| 3039 \ | |
| 3040 notproduct(intx, MaxElementPrintSize, 256, \ | |
| 3041 "maximum number of elements to print") \ | |
| 3042 \ | |
| 3043 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
| 3044 "maximum number of subklasses to print when printing klass") \ | |
| 3045 \ | |
|
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|
3046 product(intx, MaxInlineLevel, 9, \ |
| 0 | 3047 "maximum number of nested calls that are inlined") \ |
| 3048 \ | |
|
1157
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diff
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|
3049 product(intx, MaxRecursiveInlineLevel, 1, \ |
| 0 | 3050 "maximum number of nested recursive calls that are inlined") \ |
| 3051 \ | |
| 675 | 3052 product_pd(intx, InlineSmallCode, \ |
| 0 | 3053 "Only inline already compiled methods if their code size is " \ |
| 3054 "less than this") \ | |
| 3055 \ | |
| 3056 product(intx, MaxInlineSize, 35, \ | |
| 3057 "maximum bytecode size of a method to be inlined") \ | |
| 3058 \ | |
| 3059 product_pd(intx, FreqInlineSize, \ | |
| 3060 "maximum bytecode size of a frequent method to be inlined") \ | |
| 3061 \ | |
|
1157
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diff
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|
3062 product(intx, MaxTrivialSize, 6, \ |
| 0 | 3063 "maximum bytecode size of a trivial method to be inlined") \ |
| 3064 \ | |
|
1157
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changeset
|
3065 product(intx, MinInliningThreshold, 250, \ |
| 0 | 3066 "min. invocation count a method needs to have to be inlined") \ |
| 3067 \ | |
| 3068 develop(intx, AlignEntryCode, 4, \ | |
| 3069 "aligns entry code to specified value (in bytes)") \ | |
| 3070 \ | |
| 3071 develop(intx, MethodHistogramCutoff, 100, \ | |
| 3072 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
| 3073 \ | |
| 3074 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
| 3075 "# of interpreted methods to show in profile") \ | |
| 3076 \ | |
| 3077 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
| 3078 "# of compiled methods to show in profile") \ | |
| 3079 \ | |
| 3080 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
| 3081 "# of stub methods to show in profile") \ | |
| 3082 \ | |
| 3083 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
| 3084 "# of runtime stub nodes to show in profile") \ | |
| 3085 \ | |
| 3086 product(intx, ProfileIntervalsTicks, 100, \ | |
| 3087 "# of ticks between printing of interval profile " \ | |
| 3088 "(+ProfileIntervals)") \ | |
| 3089 \ | |
| 3090 notproduct(intx, ScavengeALotInterval, 1, \ | |
| 3091 "Interval between which scavenge will occur with +ScavengeALot") \ | |
| 3092 \ | |
| 3093 notproduct(intx, FullGCALotInterval, 1, \ | |
| 3094 "Interval between which full gc will occur with +FullGCALot") \ | |
| 3095 \ | |
| 3096 notproduct(intx, FullGCALotStart, 0, \ | |
| 3097 "For which invocation to start FullGCAlot") \ | |
| 3098 \ | |
| 3099 notproduct(intx, FullGCALotDummies, 32*K, \ | |
| 3100 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
| 3101 "to move") \ | |
| 3102 \ | |
| 3103 develop(intx, DontYieldALotInterval, 10, \ | |
| 3104 "Interval between which yields will be dropped (milliseconds)") \ | |
| 3105 \ | |
| 3106 develop(intx, MinSleepInterval, 1, \ | |
| 3107 "Minimum sleep() interval (milliseconds) when " \ | |
| 3108 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
| 3109 \ | |
| 3110 product(intx, EventLogLength, 2000, \ | |
| 3111 "maximum nof events in event log") \ | |
| 3112 \ | |
| 3113 develop(intx, ProfilerPCTickThreshold, 15, \ | |
| 3114 "Number of ticks in a PC buckets to be a hotspot") \ | |
| 3115 \ | |
| 3116 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
| 3117 "Number of exits until DeoptimizeALot kicks in") \ | |
| 3118 \ | |
| 3119 notproduct(intx, ZombieALotInterval, 5, \ | |
| 3120 "Number of exits until ZombieALot kicks in") \ | |
| 3121 \ | |
| 3122 develop(bool, StressNonEntrant, false, \ | |
| 3123 "Mark nmethods non-entrant at registration") \ | |
| 3124 \ | |
| 3125 diagnostic(intx, MallocVerifyInterval, 0, \ | |
| 3126 "if non-zero, verify C heap after every N calls to " \ | |
| 3127 "malloc/realloc/free") \ | |
| 3128 \ | |
| 3129 diagnostic(intx, MallocVerifyStart, 0, \ | |
| 3130 "if non-zero, start verifying C heap after Nth call to " \ | |
| 3131 "malloc/realloc/free") \ | |
| 3132 \ | |
| 1783 | 3133 product(intx, TypeProfileWidth, 2, \ |
| 0 | 3134 "number of receiver types to record in call/cast profile") \ |
| 3135 \ | |
| 3136 develop(intx, BciProfileWidth, 2, \ | |
| 3137 "number of return bci's to record in ret profile") \ | |
| 3138 \ | |
| 3139 product(intx, PerMethodRecompilationCutoff, 400, \ | |
| 3140 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
| 3141 \ | |
|
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|
3142 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
| 0 | 3143 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
| 3144 \ | |
| 3145 product(intx, PerMethodTrapLimit, 100, \ | |
| 3146 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
| 3147 \ | |
| 3148 product(intx, PerBytecodeTrapLimit, 4, \ | |
| 3149 "Limit on traps (of one kind) at a particular BCI") \ | |
| 3150 \ | |
| 3151 develop(intx, FreqCountInvocations, 1, \ | |
| 3152 "Scaling factor for branch frequencies (deprecated)") \ | |
| 3153 \ | |
| 3154 develop(intx, InlineFrequencyRatio, 20, \ | |
| 3155 "Ratio of call site execution to caller method invocation") \ | |
| 3156 \ | |
| 3157 develop_pd(intx, InlineFrequencyCount, \ | |
| 3158 "Count of call site execution necessary to trigger frequent " \ | |
| 3159 "inlining") \ | |
| 3160 \ | |
| 3161 develop(intx, InlineThrowCount, 50, \ | |
| 3162 "Force inlining of interpreted methods that throw this often") \ | |
| 3163 \ | |
| 3164 develop(intx, InlineThrowMaxSize, 200, \ | |
| 3165 "Force inlining of throwing methods smaller than this") \ | |
| 3166 \ | |
| 3167 product(intx, AliasLevel, 3, \ | |
| 3168 "0 for no aliasing, 1 for oop/field/static/array split, " \ | |
| 3169 "2 for class split, 3 for unique instances") \ | |
| 3170 \ | |
| 3171 develop(bool, VerifyAliases, false, \ | |
| 3172 "perform extra checks on the results of alias analysis") \ | |
| 3173 \ | |
| 3174 develop(intx, ProfilerNodeSize, 1024, \ | |
| 3175 "Size in K to allocate for the Profile Nodes of each thread") \ | |
| 3176 \ | |
| 3177 develop(intx, V8AtomicOperationUnderLockSpinCount, 50, \ | |
| 3178 "Number of times to spin wait on a v8 atomic operation lock") \ | |
| 3179 \ | |
| 3180 product(intx, ReadSpinIterations, 100, \ | |
| 3181 "Number of read attempts before a yield (spin inner loop)") \ | |
| 3182 \ | |
| 3183 product_pd(intx, PreInflateSpin, \ | |
| 3184 "Number of times to spin wait before inflation") \ | |
| 3185 \ | |
| 3186 product(intx, PreBlockSpin, 10, \ | |
| 3187 "Number of times to spin in an inflated lock before going to " \ | |
| 3188 "an OS lock") \ | |
| 3189 \ | |
| 3190 /* gc parameters */ \ | |
| 1064 | 3191 product(uintx, InitialHeapSize, 0, \ |
| 3192 "Initial heap size (in bytes); zero means OldSize + NewSize") \ | |
| 3193 \ | |
| 3194 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
| 3195 "Maximum heap size (in bytes)") \ | |
| 3196 \ | |
| 3197 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
| 3198 "Initial tenured generation size (in bytes)") \ | |
| 3199 \ | |
|
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|
3200 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
| 1064 | 3201 "Initial new generation size (in bytes)") \ |
| 0 | 3202 \ |
| 3203 product(uintx, MaxNewSize, max_uintx, \ | |
| 1064 | 3204 "Maximum new generation size (in bytes), max_uintx means set " \ |
| 3205 "ergonomically") \ | |
| 0 | 3206 \ |
| 3207 product(uintx, PretenureSizeThreshold, 0, \ | |
| 1064 | 3208 "Maximum size in bytes of objects allocated in DefNew " \ |
| 3209 "generation; zero means no maximum") \ | |
| 3210 \ | |
| 3211 product(uintx, TLABSize, 0, \ | |
| 3212 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
| 0 | 3213 \ |
| 3214 product(uintx, MinTLABSize, 2*K, \ | |
| 3215 "Minimum allowed TLAB size (in bytes)") \ | |
| 3216 \ | |
| 3217 product(uintx, TLABAllocationWeight, 35, \ | |
| 3218 "Allocation averaging weight") \ | |
| 3219 \ | |
| 3220 product(uintx, TLABWasteTargetPercent, 1, \ | |
| 3221 "Percentage of Eden that can be wasted") \ | |
| 3222 \ | |
| 3223 product(uintx, TLABRefillWasteFraction, 64, \ | |
| 3224 "Max TLAB waste at a refill (internal fragmentation)") \ | |
| 3225 \ | |
| 3226 product(uintx, TLABWasteIncrement, 4, \ | |
| 3227 "Increment allowed waste at slow allocation") \ | |
| 3228 \ | |
| 1064 | 3229 product(intx, SurvivorRatio, 8, \ |
| 0 | 3230 "Ratio of eden/survivor space size") \ |
| 3231 \ | |
| 1064 | 3232 product(intx, NewRatio, 2, \ |
| 0 | 3233 "Ratio of new/old generation sizes") \ |
| 3234 \ | |
| 3235 product_pd(uintx, NewSizeThreadIncrease, \ | |
| 3236 "Additional size added to desired new generation size per " \ | |
| 3237 "non-daemon thread (in bytes)") \ | |
| 3238 \ | |
| 3239 product_pd(uintx, PermSize, \ | |
| 1064 | 3240 "Initial size of permanent generation (in bytes)") \ |
| 0 | 3241 \ |
| 3242 product_pd(uintx, MaxPermSize, \ | |
| 3243 "Maximum size of permanent generation (in bytes)") \ | |
| 3244 \ | |
| 3245 product(uintx, MinHeapFreeRatio, 40, \ | |
| 3246 "Min percentage of heap free after GC to avoid expansion") \ | |
| 3247 \ | |
| 3248 product(uintx, MaxHeapFreeRatio, 70, \ | |
| 3249 "Max percentage of heap free after GC to avoid shrinking") \ | |
| 3250 \ | |
| 3251 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
| 3252 "Number of milliseconds per MB of free space in the heap") \ | |
| 3253 \ | |
| 3254 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
| 3255 "Min change in heap space due to GC (in bytes)") \ | |
| 3256 \ | |
| 3257 product(uintx, MinPermHeapExpansion, ScaleForWordSize(256*K), \ | |
| 3258 "Min expansion of permanent heap (in bytes)") \ | |
| 3259 \ | |
| 3260 product(uintx, MaxPermHeapExpansion, ScaleForWordSize(4*M), \ | |
| 3261 "Max expansion of permanent heap without full GC (in bytes)") \ | |
| 3262 \ | |
| 3263 product(intx, QueuedAllocationWarningCount, 0, \ | |
| 3264 "Number of times an allocation that queues behind a GC " \ | |
| 3265 "will retry before printing a warning") \ | |
| 3266 \ | |
| 3267 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
| 3268 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
| 3269 \ | |
| 3270 diagnostic(intx, VerifyGCLevel, 0, \ | |
| 3271 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
| 3272 \ | |
| 3273 develop(uintx, ExitAfterGCNum, 0, \ | |
| 3274 "If non-zero, exit after this GC.") \ | |
| 3275 \ | |
| 3276 product(intx, MaxTenuringThreshold, 15, \ | |
| 3277 "Maximum value for tenuring threshold") \ | |
| 3278 \ | |
| 3279 product(intx, InitialTenuringThreshold, 7, \ | |
| 3280 "Initial value for tenuring threshold") \ | |
| 3281 \ | |
| 3282 product(intx, TargetSurvivorRatio, 50, \ | |
| 3283 "Desired percentage of survivor space used after scavenge") \ | |
| 3284 \ | |
| 438 | 3285 product(uintx, MarkSweepDeadRatio, 5, \ |
| 0 | 3286 "Percentage (0-100) of the old gen allowed as dead wood." \ |
| 3287 "Serial mark sweep treats this as both the min and max value." \ | |
| 3288 "CMS uses this value only if it falls back to mark sweep." \ | |
| 3289 "Par compact uses a variable scale based on the density of the" \ | |
| 3290 "generation and treats this as the max value when the heap is" \ | |
| 3291 "either completely full or completely empty. Par compact also" \ | |
| 3292 "has a smaller default value; see arguments.cpp.") \ | |
| 3293 \ | |
| 438 | 3294 product(uintx, PermMarkSweepDeadRatio, 20, \ |
| 0 | 3295 "Percentage (0-100) of the perm gen allowed as dead wood." \ |
| 3296 "See MarkSweepDeadRatio for collector-specific comments.") \ | |
| 3297 \ | |
| 3298 product(intx, MarkSweepAlwaysCompactCount, 4, \ | |
| 3299 "How often should we fully compact the heap (ignoring the dead " \ | |
| 3300 "space parameters)") \ | |
| 3301 \ | |
| 3302 product(intx, PrintCMSStatistics, 0, \ | |
| 3303 "Statistics for CMS") \ | |
| 3304 \ | |
| 3305 product(bool, PrintCMSInitiationStatistics, false, \ | |
| 3306 "Statistics for initiating a CMS collection") \ | |
| 3307 \ | |
| 3308 product(intx, PrintFLSStatistics, 0, \ | |
| 3309 "Statistics for CMS' FreeListSpace") \ | |
| 3310 \ | |
| 3311 product(intx, PrintFLSCensus, 0, \ | |
| 3312 "Census for CMS' FreeListSpace") \ | |
| 3313 \ | |
| 3314 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
| 3315 "Delay in ms between expansion and allocation") \ | |
| 3316 \ | |
| 3317 product(intx, DeferThrSuspendLoopCount, 4000, \ | |
| 3318 "(Unstable) Number of times to iterate in safepoint loop " \ | |
| 3319 " before blocking VM threads ") \ | |
| 3320 \ | |
| 3321 product(intx, DeferPollingPageLoopCount, -1, \ | |
| 3322 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
| 3323 "before changing safepoint polling page to RO ") \ | |
| 3324 \ | |
| 3325 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
| 3326 \ | |
| 3327 product(bool, PSChunkLargeArrays, true, \ | |
| 3328 "true: process large arrays in chunks") \ | |
| 3329 \ | |
| 3330 product(uintx, GCDrainStackTargetSize, 64, \ | |
| 3331 "how many entries we'll try to leave on the stack during " \ | |
| 3332 "parallel GC") \ | |
| 3333 \ | |
| 3334 /* stack parameters */ \ | |
| 3335 product_pd(intx, StackYellowPages, \ | |
| 3336 "Number of yellow zone (recoverable overflows) pages") \ | |
| 3337 \ | |
| 3338 product_pd(intx, StackRedPages, \ | |
| 3339 "Number of red zone (unrecoverable overflows) pages") \ | |
| 3340 \ | |
| 3341 product_pd(intx, StackShadowPages, \ | |
| 3342 "Number of shadow zone (for overflow checking) pages" \ | |
| 3343 " this should exceed the depth of the VM and native call stack") \ | |
| 3344 \ | |
| 3345 product_pd(intx, ThreadStackSize, \ | |
| 3346 "Thread Stack Size (in Kbytes)") \ | |
| 3347 \ | |
| 3348 product_pd(intx, VMThreadStackSize, \ | |
| 3349 "Non-Java Thread Stack Size (in Kbytes)") \ | |
| 3350 \ | |
| 3351 product_pd(intx, CompilerThreadStackSize, \ | |
| 3352 "Compiler Thread Stack Size (in Kbytes)") \ | |
| 3353 \ | |
| 3354 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
| 3355 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
| 3356 \ | |
| 3357 product(uintx, ThreadSafetyMargin, 50*M, \ | |
| 3358 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
| 3359 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
| 3360 "disable this feature") \ | |
| 3361 \ | |
| 3362 /* code cache parameters */ \ | |
| 3363 develop(uintx, CodeCacheSegmentSize, 64, \ | |
| 3364 "Code cache segment size (in bytes) - smallest unit of " \ | |
| 3365 "allocation") \ | |
| 3366 \ | |
| 3367 develop_pd(intx, CodeEntryAlignment, \ | |
| 3368 "Code entry alignment for generated code (in bytes)") \ | |
| 3369 \ | |
| 1365 | 3370 product_pd(intx, OptoLoopAlignment, \ |
| 3371 "Align inner loops to zero relative to this modulus") \ | |
| 3372 \ | |
| 0 | 3373 product_pd(uintx, InitialCodeCacheSize, \ |
| 3374 "Initial code cache size (in bytes)") \ | |
| 3375 \ | |
| 3376 product_pd(uintx, ReservedCodeCacheSize, \ | |
| 3377 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
| 3378 \ | |
| 3379 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
| 3380 "When less than X space left, we stop compiling.") \ | |
| 3381 \ | |
| 3382 product_pd(uintx, CodeCacheExpansionSize, \ | |
| 3383 "Code cache expansion size (in bytes)") \ | |
| 3384 \ | |
| 3385 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
| 3386 "Minimum number of segments in a code cache block.") \ | |
| 3387 \ | |
| 3388 notproduct(bool, ExitOnFullCodeCache, false, \ | |
| 3389 "Exit the VM if we fill the code cache.") \ | |
| 3390 \ | |
| 4039 | 3391 product(bool, UseCodeCacheFlushing, true, \ |
| 1202 | 3392 "Attempt to clean the code cache before shutting off compiler") \ |
| 3393 \ | |
| 3394 product(intx, MinCodeCacheFlushingInterval, 30, \ | |
| 3395 "Min number of seconds between code cache cleaning sessions") \ | |
| 3396 \ | |
| 3397 product(uintx, CodeCacheFlushingMinimumFreeSpace, 1500*K, \ | |
| 3398 "When less than X space left, start code cache cleaning") \ | |
| 3399 \ | |
| 0 | 3400 /* interpreter debugging */ \ |
| 3401 develop(intx, BinarySwitchThreshold, 5, \ | |
| 3402 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
| 3403 "switch") \ | |
| 3404 \ | |
| 3405 develop(intx, StopInterpreterAt, 0, \ | |
| 3406 "Stops interpreter execution at specified bytecode number") \ | |
| 3407 \ | |
| 3408 develop(intx, TraceBytecodesAt, 0, \ | |
| 3409 "Traces bytecodes starting with specified bytecode number") \ | |
| 3410 \ | |
| 3411 /* compiler interface */ \ | |
| 3412 develop(intx, CIStart, 0, \ | |
| 3413 "the id of the first compilation to permit") \ | |
| 3414 \ | |
| 3415 develop(intx, CIStop, -1, \ | |
| 3416 "the id of the last compilation to permit") \ | |
| 3417 \ | |
| 3418 develop(intx, CIStartOSR, 0, \ | |
| 3419 "the id of the first osr compilation to permit " \ | |
| 3420 "(CICountOSR must be on)") \ | |
| 3421 \ | |
| 3422 develop(intx, CIStopOSR, -1, \ | |
| 3423 "the id of the last osr compilation to permit " \ | |
| 3424 "(CICountOSR must be on)") \ | |
| 3425 \ | |
| 3426 develop(intx, CIBreakAtOSR, -1, \ | |
| 3427 "id of osr compilation to break at") \ | |
| 3428 \ | |
| 3429 develop(intx, CIBreakAt, -1, \ | |
| 3430 "id of compilation to break at") \ | |
| 3431 \ | |
| 3432 product(ccstrlist, CompileOnly, "", \ | |
| 3433 "List of methods (pkg/class.name) to restrict compilation to") \ | |
| 3434 \ | |
| 3435 product(ccstr, CompileCommandFile, NULL, \ | |
| 3436 "Read compiler commands from this file [.hotspot_compiler]") \ | |
| 3437 \ | |
| 3438 product(ccstrlist, CompileCommand, "", \ | |
| 3439 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
| 3440 \ | |
| 3441 product(bool, CICompilerCountPerCPU, false, \ | |
| 3442 "1 compiler thread for log(N CPUs)") \ | |
| 3443 \ | |
| 3444 develop(intx, CIFireOOMAt, -1, \ | |
| 3445 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
| 3446 "(non-negative value throws OOM after this many CI accesses " \ | |
| 3447 "in each compile)") \ | |
| 3448 \ | |
| 3449 develop(intx, CIFireOOMAtDelay, -1, \ | |
| 3450 "Wait for this many CI accesses to occur in all compiles before " \ | |
| 3451 "beginning to throw OutOfMemoryErrors in each compile") \ | |
| 3452 \ | |
|
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|
3453 notproduct(bool, CIObjectFactoryVerify, false, \ |
|
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|
3454 "enable potentially expensive verification in ciObjectFactory") \ |
|
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|
3455 \ |
| 0 | 3456 /* Priorities */ \ |
| 3457 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
| 3458 \ | |
| 3459 product(intx, ThreadPriorityPolicy, 0, \ | |
| 3460 "0 : Normal. "\ | |
| 3461 " VM chooses priorities that are appropriate for normal "\ | |
| 3462 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
| 3463 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
| 3464 " map to lower native priority values. On Windows applications"\ | |
| 3465 " are allowed to use higher native priorities. However, with "\ | |
| 3466 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
| 3467 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
| 3468 " interfere with system threads. On Linux thread priorities "\ | |
| 3469 " are ignored because the OS does not support static priority "\ | |
| 3470 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
| 3471 " non-root, non-realtime applications. "\ | |
| 3472 "1 : Aggressive. "\ | |
| 3473 " Java thread priorities map over to the entire range of "\ | |
| 3474 " native thread priorities. Higher Java thread priorities map "\ | |
| 3475 " to higher native thread priorities. This policy should be "\ | |
| 3476 " used with care, as sometimes it can cause performance "\ | |
| 3477 " degradation in the application and/or the entire system. On "\ | |
| 3478 " Linux this policy requires root privilege.") \ | |
| 3479 \ | |
| 3480 product(bool, ThreadPriorityVerbose, false, \ | |
| 3481 "print priority changes") \ | |
| 3482 \ | |
| 3483 product(intx, DefaultThreadPriority, -1, \ | |
| 3484 "what native priority threads run at if not specified elsewhere (-1 means no change)") \ | |
| 3485 \ | |
| 3486 product(intx, CompilerThreadPriority, -1, \ | |
| 3487 "what priority should compiler threads run at (-1 means no change)") \ | |
| 3488 \ | |
| 3489 product(intx, VMThreadPriority, -1, \ | |
| 3490 "what priority should VM threads run at (-1 means no change)") \ | |
| 3491 \ | |
| 3492 product(bool, CompilerThreadHintNoPreempt, true, \ | |
| 3493 "(Solaris only) Give compiler threads an extra quanta") \ | |
| 3494 \ | |
| 3495 product(bool, VMThreadHintNoPreempt, false, \ | |
| 3496 "(Solaris only) Give VM thread an extra quanta") \ | |
| 3497 \ | |
| 3498 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3499 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3500 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3501 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3502 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3503 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3504 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3505 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3506 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3507 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
| 3508 \ | |
| 3509 /* compiler debugging */ \ | |
| 3510 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
| 3511 "First class to consider when using +CompileTheWorld") \ | |
| 3512 \ | |
| 3513 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
| 3514 "Last class to consider when using +CompileTheWorld") \ | |
| 3515 \ | |
| 3516 develop(intx, NewCodeParameter, 0, \ | |
| 3517 "Testing Only: Create a dedicated integer parameter before " \ | |
| 3518 "putback") \ | |
| 3519 \ | |
| 3520 /* new oopmap storage allocation */ \ | |
| 3521 develop(intx, MinOopMapAllocation, 8, \ | |
| 3522 "Minimum number of OopMap entries in an OopMapSet") \ | |
| 3523 \ | |
| 3524 /* Background Compilation */ \ | |
| 3525 develop(intx, LongCompileThreshold, 50, \ | |
| 3526 "Used with +TraceLongCompiles") \ | |
| 3527 \ | |
| 3528 product(intx, StarvationMonitorInterval, 200, \ | |
| 3529 "Pause between each check in ms") \ | |
| 3530 \ | |
| 3531 /* recompilation */ \ | |
| 3532 product_pd(intx, CompileThreshold, \ | |
| 3533 "number of interpreted method invocations before (re-)compiling") \ | |
| 3534 \ | |
| 3535 product_pd(intx, BackEdgeThreshold, \ | |
| 3536 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
| 3537 \ | |
| 1783 | 3538 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
| 3539 "Interpreter (tier 0) invocation notification frequency.") \ | |
| 3540 \ | |
| 3541 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
| 3542 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
| 3543 \ | |
| 3544 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
| 3545 "C1 with MDO profiling (tier 3) invocation notification " \ | |
| 3546 "frequency.") \ | |
| 3547 \ | |
|
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3548 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
|
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3549 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
|
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3550 \ |
| 1783 | 3551 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
| 3552 "Interpreter (tier 0) invocation notification frequency.") \ | |
| 3553 \ | |
| 3554 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
| 3555 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
| 3556 \ | |
| 3557 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
| 3558 "C1 with MDO profiling (tier 3) invocation notification " \ | |
| 3559 "frequency.") \ | |
| 3560 \ | |
| 3561 product(intx, Tier2CompileThreshold, 0, \ | |
| 3562 "threshold at which tier 2 compilation is invoked") \ | |
| 3563 \ | |
| 3564 product(intx, Tier2BackEdgeThreshold, 0, \ | |
| 3565 "Back edge threshold at which tier 2 compilation is invoked") \ | |
| 3566 \ | |
| 3567 product(intx, Tier3InvocationThreshold, 200, \ | |
| 3568 "Compile if number of method invocations crosses this " \ | |
| 3569 "threshold") \ | |
| 3570 \ | |
| 3571 product(intx, Tier3MinInvocationThreshold, 100, \ | |
| 3572 "Minimum invocation to compile at tier 3") \ | |
| 3573 \ | |
| 3574 product(intx, Tier3CompileThreshold, 2000, \ | |
| 3575 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
| 3576 "minimum must be satisfied.") \ | |
| 3577 \ | |
| 4819 | 3578 product(intx, Tier3BackEdgeThreshold, 60000, \ |
| 1783 | 3579 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
| 3580 \ | |
| 3581 product(intx, Tier4InvocationThreshold, 5000, \ | |
| 3582 "Compile if number of method invocations crosses this " \ | |
| 3583 "threshold") \ | |
| 3584 \ | |
| 3585 product(intx, Tier4MinInvocationThreshold, 600, \ | |
| 3586 "Minimum invocation to compile at tier 4") \ | |
| 3587 \ | |
| 3588 product(intx, Tier4CompileThreshold, 15000, \ | |
| 3589 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
| 3590 "minimum must be satisfied.") \ | |
| 3591 \ | |
| 3592 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
| 3593 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
| 3594 \ | |
| 3595 product(intx, Tier3DelayOn, 5, \ | |
| 3596 "If C2 queue size grows over this amount per compiler thread " \ | |
| 3597 "stop compiling at tier 3 and start compiling at tier 2") \ | |
| 3598 \ | |
| 3599 product(intx, Tier3DelayOff, 2, \ | |
| 3600 "If C2 queue size is less than this amount per compiler thread " \ | |
| 3601 "allow methods compiled at tier 2 transition to tier 3") \ | |
| 3602 \ | |
| 3603 product(intx, Tier3LoadFeedback, 5, \ | |
| 3604 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
| 3605 "reaches this amount per compiler thread") \ | |
| 3606 \ | |
| 3607 product(intx, Tier4LoadFeedback, 3, \ | |
| 3608 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
| 3609 "reaches this amount per compiler thread") \ | |
| 3610 \ | |
| 3611 product(intx, TieredCompileTaskTimeout, 50, \ | |
| 3612 "Kill compile task if method was not used within " \ | |
| 3613 "given timeout in milliseconds") \ | |
| 3614 \ | |
| 3615 product(intx, TieredStopAtLevel, 4, \ | |
| 3616 "Stop at given compilation level") \ | |
| 3617 \ | |
| 3618 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
| 3619 "Start profiling in interpreter if the counters exceed tier 3" \ | |
| 3620 "thresholds by the specified percentage") \ | |
| 3621 \ | |
| 3622 product(intx, TieredRateUpdateMinTime, 1, \ | |
| 3623 "Minimum rate sampling interval (in milliseconds)") \ | |
| 3624 \ | |
| 3625 product(intx, TieredRateUpdateMaxTime, 25, \ | |
| 3626 "Maximum rate sampling interval (in milliseconds)") \ | |
| 0 | 3627 \ |
| 3628 product_pd(bool, TieredCompilation, \ | |
| 1783 | 3629 "Enable tiered compilation") \ |
| 3630 \ | |
| 3631 product(bool, PrintTieredEvents, false, \ | |
| 3632 "Print tiered events notifications") \ | |
| 0 | 3633 \ |
| 3634 product(bool, StressTieredRuntime, false, \ | |
| 3635 "Alternate client and server compiler on compile requests") \ | |
| 3636 \ | |
| 3637 product_pd(intx, OnStackReplacePercentage, \ | |
| 3638 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
| 3639 "of CompileThreshold) before (re-)compiling OSR code") \ | |
| 3640 \ | |
| 3641 product(intx, InterpreterProfilePercentage, 33, \ | |
| 3642 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
| 3643 "of CompileThreshold) before profiling in the interpreter") \ | |
| 3644 \ | |
| 3645 develop(intx, MaxRecompilationSearchLength, 10, \ | |
| 3646 "max. # frames to inspect searching for recompilee") \ | |
| 3647 \ | |
| 3648 develop(intx, MaxInterpretedSearchLength, 3, \ | |
| 3649 "max. # interp. frames to skip when searching for recompilee") \ | |
| 3650 \ | |
| 3651 develop(intx, DesiredMethodLimit, 8000, \ | |
| 3652 "desired max. method size (in bytecodes) after inlining") \ | |
| 3653 \ | |
| 3654 develop(intx, HugeMethodLimit, 8000, \ | |
| 3655 "don't compile methods larger than this if " \ | |
| 3656 "+DontCompileHugeMethods") \ | |
| 3657 \ | |
| 3658 /* New JDK 1.4 reflection implementation */ \ | |
| 3659 \ | |
| 3660 develop(bool, UseNewReflection, true, \ | |
| 3661 "Temporary flag for transition to reflection based on dynamic " \ | |
| 3662 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
| 3663 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
| 3664 "changes were needed") \ | |
| 3665 \ | |
| 3666 develop(bool, VerifyReflectionBytecodes, false, \ | |
| 3667 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
| 3668 "in situations like that described in 4486457 or for " \ | |
| 3669 "constructors generated for serialization, so can not be enabled "\ | |
| 3670 "in product.") \ | |
| 3671 \ | |
| 3672 product(bool, ReflectionWrapResolutionErrors, true, \ | |
| 3673 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
| 3674 "in InvocationTargetException. See 6531596") \ | |
| 3675 \ | |
| 3676 \ | |
| 3677 develop(intx, FastSuperclassLimit, 8, \ | |
| 3678 "Depth of hardwired instanceof accelerator array") \ | |
| 3679 \ | |
| 3680 /* Properties for Java libraries */ \ | |
| 3681 \ | |
| 3682 product(intx, MaxDirectMemorySize, -1, \ | |
| 3683 "Maximum total size of NIO direct-buffer allocations") \ | |
| 3684 \ | |
| 3685 /* temporary developer defined flags */ \ | |
| 3686 \ | |
| 3687 diagnostic(bool, UseNewCode, false, \ | |
| 3688 "Testing Only: Use the new version while testing") \ | |
| 3689 \ | |
| 3690 diagnostic(bool, UseNewCode2, false, \ | |
| 3691 "Testing Only: Use the new version while testing") \ | |
| 3692 \ | |
| 3693 diagnostic(bool, UseNewCode3, false, \ | |
| 3694 "Testing Only: Use the new version while testing") \ | |
| 3695 \ | |
| 3696 /* flags for performance data collection */ \ | |
| 3697 \ | |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3698 product(bool, UsePerfData, falseInEmbedded, \ |
| 0 | 3699 "Flag to disable jvmstat instrumentation for performance testing" \ |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3700 "and problem isolation purposes.") \ |
| 0 | 3701 \ |
| 3702 product(bool, PerfDataSaveToFile, false, \ | |
| 3703 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
| 3704 \ | |
| 3705 product(ccstr, PerfDataSaveFile, NULL, \ | |
| 3706 "Save PerfData memory to the specified absolute pathname," \ | |
| 3707 "%p in the file name if present will be replaced by pid") \ | |
| 3708 \ | |
| 3709 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
| 3710 "Data sampling interval in milliseconds") \ | |
| 3711 \ | |
| 3712 develop(bool, PerfTraceDataCreation, false, \ | |
| 3713 "Trace creation of Performance Data Entries") \ | |
| 3714 \ | |
| 3715 develop(bool, PerfTraceMemOps, false, \ | |
| 3716 "Trace PerfMemory create/attach/detach calls") \ | |
| 3717 \ | |
| 3718 product(bool, PerfDisableSharedMem, false, \ | |
| 3719 "Store performance data in standard memory") \ | |
| 3720 \ | |
| 3721 product(intx, PerfDataMemorySize, 32*K, \ | |
| 3722 "Size of performance data memory region. Will be rounded " \ | |
| 3723 "up to a multiple of the native os page size.") \ | |
| 3724 \ | |
| 3725 product(intx, PerfMaxStringConstLength, 1024, \ | |
| 3726 "Maximum PerfStringConstant string length before truncation") \ | |
| 3727 \ | |
| 3728 product(bool, PerfAllowAtExitRegistration, false, \ | |
| 3729 "Allow registration of atexit() methods") \ | |
| 3730 \ | |
| 3731 product(bool, PerfBypassFileSystemCheck, false, \ | |
| 3732 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
| 3733 \ | |
| 3734 product(intx, UnguardOnExecutionViolation, 0, \ | |
| 3735 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
| 3736 "0=off, 1=conservative, 2=aggressive") \ | |
| 3737 \ | |
| 3738 /* Serviceability Support */ \ | |
| 3739 \ | |
| 3740 product(bool, ManagementServer, false, \ | |
| 3741 "Create JMX Management Server") \ | |
| 3742 \ | |
| 3743 product(bool, DisableAttachMechanism, false, \ | |
| 3744 "Disable mechanism that allows tools to attach to this VM") \ | |
| 3745 \ | |
| 3746 product(bool, StartAttachListener, false, \ | |
| 3747 "Always start Attach Listener at VM startup") \ | |
| 3748 \ | |
| 3749 manageable(bool, PrintConcurrentLocks, false, \ | |
| 3750 "Print java.util.concurrent locks in thread dump") \ | |
| 3751 \ | |
|
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3752 product(bool, TransmitErrorReport, false, \ |
|
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3753 "Enable error report transmission on erroneous termination") \ |
|
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3754 \ |
|
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3755 product(ccstr, ErrorReportServer, NULL, \ |
|
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3756 "Override built-in error report server address") \ |
|
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3757 \ |
| 0 | 3758 /* Shared spaces */ \ |
| 3759 \ | |
| 3760 product(bool, UseSharedSpaces, true, \ | |
| 3761 "Use shared spaces in the permanent generation") \ | |
| 3762 \ | |
| 3763 product(bool, RequireSharedSpaces, false, \ | |
| 3764 "Require shared spaces in the permanent generation") \ | |
| 3765 \ | |
| 3766 product(bool, DumpSharedSpaces, false, \ | |
| 3767 "Special mode: JVM reads a class list, loads classes, builds " \ | |
| 3768 "shared spaces, and dumps the shared spaces to a file to be " \ | |
| 3769 "used in future JVM runs.") \ | |
| 3770 \ | |
| 3771 product(bool, PrintSharedSpaces, false, \ | |
| 3772 "Print usage of shared spaces") \ | |
| 3773 \ | |
| 3774 product(uintx, SharedDummyBlockSize, 512*M, \ | |
| 3775 "Size of dummy block used to shift heap addresses (in bytes)") \ | |
| 3776 \ | |
| 1875 | 3777 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(13*M), \ |
| 0 | 3778 "Size of read-write space in permanent generation (in bytes)") \ |
| 3779 \ | |
|
910
10d8c0d0d60e
6867645: java -Xshare:dump failed - read only space too small
jcoomes
parents:
909
diff
changeset
|
3780 product(uintx, SharedReadOnlySize, 10*M, \ |
| 0 | 3781 "Size of read-only space in permanent generation (in bytes)") \ |
| 3782 \ | |
|
2242
6e70f1bb7f6f
7019557: SharedMiscDataSize too small for 64-bit fastdebug JVM
coleenp
parents:
2204
diff
changeset
|
3783 product(uintx, SharedMiscDataSize, NOT_LP64(4*M) LP64_ONLY(5*M), \ |
| 0 | 3784 "Size of the shared data area adjacent to the heap (in bytes)") \ |
| 3785 \ | |
| 3786 product(uintx, SharedMiscCodeSize, 4*M, \ | |
| 3787 "Size of the shared code area adjacent to the heap (in bytes)") \ | |
| 3788 \ | |
| 3789 diagnostic(bool, SharedOptimizeColdStart, true, \ | |
| 3790 "At dump time, order shared objects to achieve better " \ | |
| 3791 "cold startup time.") \ | |
| 3792 \ | |
| 3793 develop(intx, SharedOptimizeColdStartPolicy, 2, \ | |
| 3794 "Reordering policy for SharedOptimizeColdStart " \ | |
| 3795 "0=favor classload-time locality, 1=balanced, " \ | |
| 3796 "2=favor runtime locality") \ | |
| 3797 \ | |
| 3798 diagnostic(bool, SharedSkipVerify, false, \ | |
| 3799 "Skip assert() and verify() which page-in unwanted shared " \ | |
| 3800 "objects. ") \ | |
| 3801 \ | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3802 diagnostic(bool, EnableInvokeDynamic, true, \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3803 "support JSR 292 (method handles, invokedynamic, " \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3804 "anonymous classes") \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3805 \ |
|
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
406
diff
changeset
|
3806 product(bool, AnonymousClasses, false, \ |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3807 "support sun.misc.Unsafe.defineAnonymousClass (deprecated)") \ |
|
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
406
diff
changeset
|
3808 \ |
|
905
bd2b1f617a4e
6868487: EnableInvokeDynamic and EnableMethodHandles should not be visible flags in JDK6 or JDK7
jrose
parents:
885
diff
changeset
|
3809 experimental(bool, EnableMethodHandles, false, \ |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3810 "support method handles (deprecated)") \ |
| 710 | 3811 \ |
| 3812 diagnostic(intx, MethodHandlePushLimit, 3, \ | |
| 3813 "number of additional stack slots a method handle may push") \ | |
| 3814 \ | |
|
3757
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3815 diagnostic(bool, PrintMethodHandleStubs, false, \ |
|
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3816 "Print generated stub code for method handles") \ |
|
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3817 \ |
| 710 | 3818 develop(bool, TraceMethodHandles, false, \ |
| 3819 "trace internal method handle operations") \ | |
| 3820 \ | |
| 3821 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
| 3822 "perform extra checks when constructing method handles") \ | |
| 3823 \ | |
| 3824 diagnostic(bool, OptimizeMethodHandles, true, \ | |
| 3825 "when constructing method handles, try to improve them") \ | |
| 3826 \ | |
|
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3827 develop(bool, StressMethodHandleWalk, false, \ |
|
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3828 "Process all method handles with MethodHandleWalk") \ |
|
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3829 \ |
|
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3830 experimental(bool, TrustFinalNonStaticFields, false, \ |
|
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3831 "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
|
3832 \ |
|
3745
a93146d0e4be
7049410: JSR 292 old method name MethodHandle.invokeGeneric should not be accepted by the JVM
jrose
parents:
3388
diff
changeset
|
3833 experimental(bool, AllowInvokeGeneric, false, \ |
|
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2325
diff
changeset
|
3834 "accept MethodHandle.invoke and MethodHandle.invokeGeneric " \ |
|
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2325
diff
changeset
|
3835 "as equivalent methods") \ |
|
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2325
diff
changeset
|
3836 \ |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3837 develop(bool, TraceInvokeDynamic, false, \ |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3838 "trace internal invoke dynamic operations") \ |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3839 \ |
| 0 | 3840 diagnostic(bool, PauseAtStartup, false, \ |
| 3841 "Causes the VM to pause at startup time and wait for the pause " \ | |
| 3842 "file to be removed (default: ./vm.paused.<pid>)") \ | |
| 3843 \ | |
| 3844 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
| 3845 "The file to create and for whose removal to await when pausing " \ | |
| 3846 "at startup. (default: ./vm.paused.<pid>)") \ | |
| 3847 \ | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3848 diagnostic(bool, PauseAtExit, false, \ |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3849 "Pause and wait for keypress on exit if a debugger is attached") \ |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3850 \ |
| 0 | 3851 product(bool, ExtendedDTraceProbes, false, \ |
| 3852 "Enable performance-impacting dtrace probes") \ | |
| 3853 \ | |
| 3854 product(bool, DTraceMethodProbes, false, \ | |
| 3855 "Enable dtrace probes for method-entry and method-exit") \ | |
| 3856 \ | |
| 3857 product(bool, DTraceAllocProbes, false, \ | |
| 3858 "Enable dtrace probes for object allocation") \ | |
| 3859 \ | |
| 3860 product(bool, DTraceMonitorProbes, false, \ | |
| 3861 "Enable dtrace probes for monitor events") \ | |
| 3862 \ | |
| 3863 product(bool, RelaxAccessControlCheck, false, \ | |
| 3864 "Relax the access control checks in the verifier") \ | |
| 3865 \ | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3866 diagnostic(bool, PrintDTraceDOF, false, \ |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3867 "Print the DTrace DOF passed to the system for JSDT probes") \ |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3868 \ |
| 2378 | 3869 product(uintx, StringTableSize, 1009, \ |
| 3870 "Number of buckets in the interned String table") \ | |
| 3871 \ | |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3872 product(bool, UseVMInterruptibleIO, false, \ |
| 0 | 3873 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3874 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
|
171e581e8161
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3875 " of this flag is true for JDK 6 and earliers") |
| 0 | 3876 |
| 3877 /* | |
| 3878 * Macros for factoring of globals | |
| 3879 */ | |
| 3880 | |
| 3881 // Interface macros | |
| 3882 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
| 3883 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; | |
| 3884 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; | |
|
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3885 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
| 0 | 3886 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
| 3887 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; | |
| 3888 #ifdef PRODUCT | |
| 3889 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) const type name = value; | |
| 3890 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) const type name = pd_##name; | |
| 3891 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) | |
| 3892 #else | |
| 3893 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; | |
| 3894 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; | |
| 3895 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; | |
| 3896 #endif | |
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3897 // Special LP64 flags, product only needed for now. |
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3898 #ifdef _LP64 |
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3899 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
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3900 #else |
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3901 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
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3902 #endif // _LP64 |
| 0 | 3903 |
| 3904 // Implementation macros | |
| 3905 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; | |
| 3906 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; | |
| 3907 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; | |
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3908 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
| 0 | 3909 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
| 3910 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; | |
| 3911 #ifdef PRODUCT | |
| 3912 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) /* flag name is constant */ | |
| 3913 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) /* flag name is constant */ | |
| 3914 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) | |
| 3915 #else | |
| 3916 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; | |
| 3917 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; | |
| 3918 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; | |
| 3919 #endif | |
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3920 #ifdef _LP64 |
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3921 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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3922 #else |
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3923 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
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3924 #endif // _LP64 |
| 0 | 3925 |
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3926 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 | 3927 |
| 3928 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
| 1972 | 3929 |
|
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3930 // Extensions |
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3931 |
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3932 #include "runtime/globals_ext.hpp" |
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3933 |
| 1972 | 3934 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |