Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.hpp @ 12490:4dba97fb1a6f
available GPUs are exposed to Graal only by the graal.gpu.isalist system property which is set up during command line argument parsing
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 18 Oct 2013 23:55:35 +0200 |
| parents | 359f7e70ae7f |
| children | f1a55428a8d7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_RUNTIME_GLOBALS_HPP |
| 26 #define SHARE_VM_RUNTIME_GLOBALS_HPP | |
| 27 | |
| 28 #include "utilities/debug.hpp" | |
| 4868 | 29 |
| 30 // use this for flags that are true per default in the tiered build | |
| 31 // but false in non-tiered builds, and vice versa | |
| 32 #ifdef TIERED | |
| 33 #define trueInTiered true | |
| 34 #define falseInTiered false | |
| 35 #else | |
| 36 #define trueInTiered false | |
| 37 #define falseInTiered true | |
| 38 #endif | |
| 39 | |
| 1972 | 40 #ifdef TARGET_ARCH_x86 |
| 41 # include "globals_x86.hpp" | |
| 42 #endif | |
| 43 #ifdef TARGET_ARCH_sparc | |
| 44 # include "globals_sparc.hpp" | |
| 45 #endif | |
| 46 #ifdef TARGET_ARCH_zero | |
| 47 # include "globals_zero.hpp" | |
| 48 #endif | |
|
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49 #ifdef TARGET_ARCH_arm |
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50 # include "globals_arm.hpp" |
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51 #endif |
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52 #ifdef TARGET_ARCH_ppc |
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53 # include "globals_ppc.hpp" |
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54 #endif |
| 1972 | 55 #ifdef TARGET_OS_FAMILY_linux |
| 56 # include "globals_linux.hpp" | |
| 57 #endif | |
| 58 #ifdef TARGET_OS_FAMILY_solaris | |
| 59 # include "globals_solaris.hpp" | |
| 60 #endif | |
| 61 #ifdef TARGET_OS_FAMILY_windows | |
| 62 # include "globals_windows.hpp" | |
| 63 #endif | |
| 3960 | 64 #ifdef TARGET_OS_FAMILY_bsd |
| 65 # include "globals_bsd.hpp" | |
| 66 #endif | |
| 1972 | 67 #ifdef TARGET_OS_ARCH_linux_x86 |
| 68 # include "globals_linux_x86.hpp" | |
| 69 #endif | |
| 70 #ifdef TARGET_OS_ARCH_linux_sparc | |
| 71 # include "globals_linux_sparc.hpp" | |
| 72 #endif | |
| 73 #ifdef TARGET_OS_ARCH_linux_zero | |
| 74 # include "globals_linux_zero.hpp" | |
| 75 #endif | |
| 76 #ifdef TARGET_OS_ARCH_solaris_x86 | |
| 77 # include "globals_solaris_x86.hpp" | |
| 78 #endif | |
| 79 #ifdef TARGET_OS_ARCH_solaris_sparc | |
| 80 # include "globals_solaris_sparc.hpp" | |
| 81 #endif | |
| 82 #ifdef TARGET_OS_ARCH_windows_x86 | |
| 83 # include "globals_windows_x86.hpp" | |
| 84 #endif | |
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85 #ifdef TARGET_OS_ARCH_linux_arm |
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86 # include "globals_linux_arm.hpp" |
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87 #endif |
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88 #ifdef TARGET_OS_ARCH_linux_ppc |
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89 # include "globals_linux_ppc.hpp" |
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90 #endif |
| 3960 | 91 #ifdef TARGET_OS_ARCH_bsd_x86 |
| 92 # include "globals_bsd_x86.hpp" | |
| 93 #endif | |
| 94 #ifdef TARGET_OS_ARCH_bsd_zero | |
| 95 # include "globals_bsd_zero.hpp" | |
| 96 #endif | |
| 1972 | 97 #ifdef COMPILER1 |
| 98 #ifdef TARGET_ARCH_x86 | |
| 99 # include "c1_globals_x86.hpp" | |
| 100 #endif | |
| 101 #ifdef TARGET_ARCH_sparc | |
| 102 # include "c1_globals_sparc.hpp" | |
| 103 #endif | |
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104 #ifdef TARGET_ARCH_arm |
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105 # include "c1_globals_arm.hpp" |
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106 #endif |
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107 #ifdef TARGET_ARCH_ppc |
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108 # include "c1_globals_ppc.hpp" |
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109 #endif |
| 1972 | 110 #ifdef TARGET_OS_FAMILY_linux |
| 111 # include "c1_globals_linux.hpp" | |
| 112 #endif | |
| 113 #ifdef TARGET_OS_FAMILY_solaris | |
| 114 # include "c1_globals_solaris.hpp" | |
| 115 #endif | |
| 116 #ifdef TARGET_OS_FAMILY_windows | |
| 117 # include "c1_globals_windows.hpp" | |
| 118 #endif | |
| 3960 | 119 #ifdef TARGET_OS_FAMILY_bsd |
| 120 # include "c1_globals_bsd.hpp" | |
| 121 #endif | |
| 1972 | 122 #endif |
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123 #ifdef GRAAL |
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124 #ifdef TARGET_ARCH_x86 |
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125 # include "graalGlobals_x86.hpp" |
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126 #endif |
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127 #ifdef TARGET_ARCH_sparc |
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128 # include "graalGlobals_sparc.hpp" |
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129 #endif |
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130 #ifdef TARGET_ARCH_arm |
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131 # include "graalGlobals_arm.hpp" |
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132 #endif |
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133 #ifdef TARGET_ARCH_ppc |
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134 # include "graalGlobals_ppc.hpp" |
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135 #endif |
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136 #endif // GRAAL |
| 1972 | 137 #ifdef COMPILER2 |
| 138 #ifdef TARGET_ARCH_x86 | |
| 139 # include "c2_globals_x86.hpp" | |
| 140 #endif | |
| 141 #ifdef TARGET_ARCH_sparc | |
| 142 # include "c2_globals_sparc.hpp" | |
| 143 #endif | |
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144 #ifdef TARGET_ARCH_arm |
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145 # include "c2_globals_arm.hpp" |
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146 #endif |
| 1972 | 147 #ifdef TARGET_OS_FAMILY_linux |
| 148 # include "c2_globals_linux.hpp" | |
| 149 #endif | |
| 150 #ifdef TARGET_OS_FAMILY_solaris | |
| 151 # include "c2_globals_solaris.hpp" | |
| 152 #endif | |
| 153 #ifdef TARGET_OS_FAMILY_windows | |
| 154 # include "c2_globals_windows.hpp" | |
| 155 #endif | |
| 3960 | 156 #ifdef TARGET_OS_FAMILY_bsd |
| 157 # include "c2_globals_bsd.hpp" | |
| 158 #endif | |
| 1972 | 159 #endif |
| 160 #ifdef SHARK | |
| 161 #ifdef TARGET_ARCH_zero | |
| 162 # include "shark_globals_zero.hpp" | |
| 163 #endif | |
| 164 #endif | |
| 165 | |
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166 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) && !defined(GRAAL) |
| 0 | 167 define_pd_global(bool, BackgroundCompilation, false); |
| 168 define_pd_global(bool, UseTLAB, false); | |
| 169 define_pd_global(bool, CICompileOSR, false); | |
| 170 define_pd_global(bool, UseTypeProfile, false); | |
| 171 define_pd_global(bool, UseOnStackReplacement, false); | |
| 172 define_pd_global(bool, InlineIntrinsics, false); | |
| 173 define_pd_global(bool, PreferInterpreterNativeStubs, true); | |
| 174 define_pd_global(bool, ProfileInterpreter, false); | |
| 175 define_pd_global(bool, ProfileTraps, false); | |
| 176 define_pd_global(bool, TieredCompilation, false); | |
| 177 | |
| 178 define_pd_global(intx, CompileThreshold, 0); | |
| 179 define_pd_global(intx, BackEdgeThreshold, 0); | |
| 180 | |
| 181 define_pd_global(intx, OnStackReplacePercentage, 0); | |
| 182 define_pd_global(bool, ResizeTLAB, false); | |
| 183 define_pd_global(intx, FreqInlineSize, 0); | |
| 1064 | 184 define_pd_global(intx, InlineSmallCode, 0); |
| 0 | 185 define_pd_global(intx, NewSizeThreadIncrease, 4*K); |
| 186 define_pd_global(intx, InlineClassNatives, true); | |
| 187 define_pd_global(intx, InlineUnsafeOps, true); | |
| 188 define_pd_global(intx, InitialCodeCacheSize, 160*K); | |
| 189 define_pd_global(intx, ReservedCodeCacheSize, 32*M); | |
| 190 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
| 191 define_pd_global(intx, CodeCacheMinBlockLength, 1); | |
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192 define_pd_global(intx, CodeCacheMinimumUseSpace, 200*K); |
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193 define_pd_global(uintx,MetaspaceSize, ScaleForWordSize(4*M)); |
| 0 | 194 define_pd_global(bool, NeverActAsServerClassMachine, true); |
| 1064 | 195 define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
| 0 | 196 #define CI_COMPILER_COUNT 0 |
| 197 #else | |
| 198 | |
| 199 #ifdef COMPILER2 | |
| 200 #define CI_COMPILER_COUNT 2 | |
| 201 #else | |
| 202 #define CI_COMPILER_COUNT 1 | |
| 203 #endif // COMPILER2 | |
| 204 | |
| 205 #endif // no compilers | |
| 206 | |
| 207 // string type aliases used only in this file | |
| 208 typedef const char* ccstr; | |
| 209 typedef const char* ccstrlist; // represents string arguments which accumulate | |
| 210 | |
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211 struct Flag { |
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212 enum Flags { |
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213 // value origin |
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214 DEFAULT = 0, |
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215 COMMAND_LINE = 1, |
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216 ENVIRON_VAR = 2, |
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217 CONFIG_FILE = 3, |
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218 MANAGEMENT = 4, |
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219 ERGONOMIC = 5, |
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220 ATTACH_ON_DEMAND = 6, |
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221 INTERNAL = 7, |
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222 |
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223 LAST_VALUE_ORIGIN = INTERNAL, |
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224 VALUE_ORIGIN_BITS = 4, |
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225 VALUE_ORIGIN_MASK = right_n_bits(VALUE_ORIGIN_BITS), |
| 0 | 226 |
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227 // flag kind |
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228 KIND_PRODUCT = 1 << 4, |
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229 KIND_MANAGEABLE = 1 << 5, |
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230 KIND_DIAGNOSTIC = 1 << 6, |
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231 KIND_EXPERIMENTAL = 1 << 7, |
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232 KIND_NOT_PRODUCT = 1 << 8, |
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233 KIND_DEVELOP = 1 << 9, |
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234 KIND_PLATFORM_DEPENDENT = 1 << 10, |
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235 KIND_READ_WRITE = 1 << 11, |
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236 KIND_C1 = 1 << 12, |
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237 KIND_C2 = 1 << 13, |
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238 KIND_ARCH = 1 << 14, |
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239 KIND_SHARK = 1 << 15, |
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240 KIND_LP64_PRODUCT = 1 << 16, |
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241 KIND_COMMERCIAL = 1 << 17, |
| 12355 | 242 KIND_GRAAL = 1 << 18, |
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243 |
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244 KIND_MASK = ~VALUE_ORIGIN_MASK |
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245 }; |
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246 |
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247 const char* _type; |
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248 const char* _name; |
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249 void* _addr; |
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250 NOT_PRODUCT(const char* _doc;) |
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251 Flags _flags; |
| 0 | 252 |
| 253 // points to all Flags static array | |
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254 static Flag* flags; |
| 0 | 255 |
| 256 // number of flags | |
| 257 static size_t numFlags; | |
| 258 | |
| 11070 | 259 static Flag* find_flag(const char* name, size_t length, bool allow_locked = false); |
| 260 static Flag* fuzzy_match(const char* name, size_t length, bool allow_locked = false); | |
| 0 | 261 |
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262 void check_writable(); |
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263 |
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264 bool is_bool() const; |
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265 bool get_bool() const; |
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266 void set_bool(bool value); |
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267 |
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268 bool is_intx() const; |
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269 intx get_intx() const; |
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270 void set_intx(intx value); |
| 0 | 271 |
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272 bool is_uintx() const; |
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273 uintx get_uintx() const; |
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274 void set_uintx(uintx value); |
| 0 | 275 |
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276 bool is_uint64_t() const; |
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277 uint64_t get_uint64_t() const; |
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278 void set_uint64_t(uint64_t value); |
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279 |
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280 bool is_double() const; |
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281 double get_double() const; |
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282 void set_double(double value); |
| 0 | 283 |
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284 bool is_ccstr() const; |
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285 bool ccstr_accumulates() const; |
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286 ccstr get_ccstr() const; |
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287 void set_ccstr(ccstr value); |
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288 |
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289 Flags get_origin(); |
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290 void set_origin(Flags origin); |
| 1064 | 291 |
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292 bool is_default(); |
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293 bool is_ergonomic(); |
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294 bool is_command_line(); |
| 0 | 295 |
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296 bool is_product() const; |
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297 bool is_manageable() const; |
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298 bool is_diagnostic() const; |
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299 bool is_experimental() const; |
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300 bool is_notproduct() const; |
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301 bool is_develop() const; |
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302 bool is_read_write() const; |
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303 bool is_commercial() const; |
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304 |
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305 bool is_constant_in_binary() const; |
| 0 | 306 |
| 307 bool is_unlocker() const; | |
| 308 bool is_unlocked() const; | |
| 309 bool is_writeable() const; | |
| 310 bool is_external() const; | |
| 311 | |
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312 bool is_unlocker_ext() const; |
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313 bool is_unlocked_ext() const; |
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314 bool is_writeable_ext() const; |
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315 bool is_external_ext() const; |
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316 |
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317 void get_locked_message(char*, int) const; |
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318 void get_locked_message_ext(char*, int) const; |
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319 |
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320 void print_on(outputStream* st, bool withComments = false ); |
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321 void print_kind(outputStream* st); |
| 0 | 322 void print_as_flag(outputStream* st); |
| 323 }; | |
| 324 | |
| 325 // debug flags control various aspects of the VM and are global accessible | |
| 326 | |
| 327 // use FlagSetting to temporarily change some debug flag | |
| 328 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
| 329 // restored to previous value upon leaving scope | |
| 330 class FlagSetting { | |
| 331 bool val; | |
| 332 bool* flag; | |
| 333 public: | |
| 334 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
| 335 ~FlagSetting() { *flag = val; } | |
| 336 }; | |
| 337 | |
| 338 | |
| 339 class CounterSetting { | |
| 340 intx* counter; | |
| 341 public: | |
| 342 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
| 343 ~CounterSetting() { (*counter)--; } | |
| 344 }; | |
| 345 | |
| 346 | |
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347 class UIntFlagSetting { |
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348 uintx val; |
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349 uintx* flag; |
| 0 | 350 public: |
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351 UIntFlagSetting(uintx& fl, uintx newValue) { flag = &fl; val = fl; fl = newValue; } |
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352 ~UIntFlagSetting() { *flag = val; } |
| 0 | 353 }; |
| 354 | |
| 355 | |
| 356 class DoubleFlagSetting { | |
| 357 double val; | |
| 358 double* flag; | |
| 359 public: | |
| 360 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
| 361 ~DoubleFlagSetting() { *flag = val; } | |
| 362 }; | |
| 363 | |
| 364 | |
| 365 class CommandLineFlags { | |
| 366 public: | |
| 367 static bool boolAt(char* name, size_t len, bool* value); | |
| 368 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
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369 static bool boolAtPut(char* name, size_t len, bool* value, Flag::Flags origin); |
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370 static bool boolAtPut(char* name, bool* value, Flag::Flags origin) { return boolAtPut(name, strlen(name), value, origin); } |
| 0 | 371 |
| 372 static bool intxAt(char* name, size_t len, intx* value); | |
| 373 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
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374 static bool intxAtPut(char* name, size_t len, intx* value, Flag::Flags origin); |
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375 static bool intxAtPut(char* name, intx* value, Flag::Flags origin) { return intxAtPut(name, strlen(name), value, origin); } |
| 0 | 376 |
| 377 static bool uintxAt(char* name, size_t len, uintx* value); | |
| 378 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
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379 static bool uintxAtPut(char* name, size_t len, uintx* value, Flag::Flags origin); |
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380 static bool uintxAtPut(char* name, uintx* value, Flag::Flags origin) { return uintxAtPut(name, strlen(name), value, origin); } |
| 0 | 381 |
| 1064 | 382 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
| 383 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
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384 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, Flag::Flags origin); |
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385 static bool uint64_tAtPut(char* name, uint64_t* value, Flag::Flags origin) { return uint64_tAtPut(name, strlen(name), value, origin); } |
| 1064 | 386 |
| 0 | 387 static bool doubleAt(char* name, size_t len, double* value); |
| 388 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
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389 static bool doubleAtPut(char* name, size_t len, double* value, Flag::Flags origin); |
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390 static bool doubleAtPut(char* name, double* value, Flag::Flags origin) { return doubleAtPut(name, strlen(name), value, origin); } |
| 0 | 391 |
| 392 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
| 393 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
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394 static bool ccstrAtPut(char* name, size_t len, ccstr* value, Flag::Flags origin); |
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395 static bool ccstrAtPut(char* name, ccstr* value, Flag::Flags origin) { return ccstrAtPut(name, strlen(name), value, origin); } |
| 0 | 396 |
| 397 // Returns false if name is not a command line flag. | |
| 398 static bool wasSetOnCmdline(const char* name, bool* value); | |
| 4773 | 399 static void printSetFlags(outputStream* out); |
| 0 | 400 |
| 4773 | 401 static void printFlags(outputStream* out, bool withComments); |
| 0 | 402 |
| 403 static void verify() PRODUCT_RETURN; | |
| 404 }; | |
| 405 | |
| 406 // use this for flags that are true by default in the debug version but | |
| 407 // false in the optimized version, and vice versa | |
| 408 #ifdef ASSERT | |
| 409 #define trueInDebug true | |
| 410 #define falseInDebug false | |
| 411 #else | |
| 412 #define trueInDebug false | |
| 413 #define falseInDebug true | |
| 414 #endif | |
| 415 | |
| 416 // use this for flags that are true per default in the product build | |
| 417 // but false in development builds, and vice versa | |
| 418 #ifdef PRODUCT | |
| 419 #define trueInProduct true | |
| 420 #define falseInProduct false | |
| 421 #else | |
| 422 #define trueInProduct false | |
| 423 #define falseInProduct true | |
| 424 #endif | |
| 425 | |
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426 #ifdef JAVASE_EMBEDDED |
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427 #define falseInEmbedded false |
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428 #else |
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429 #define falseInEmbedded true |
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430 #endif |
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431 |
| 0 | 432 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
| 433 // product flags are always settable / visible | |
| 434 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
| 435 | |
| 436 // A flag must be declared with one of the following types: | |
| 437 // bool, intx, uintx, ccstr. | |
| 438 // The type "ccstr" is an alias for "const char*" and is used | |
| 439 // only in this file, because the macrology requires single-token type names. | |
| 440 | |
| 441 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
| 442 // They are to be used for VM quality assurance or field diagnosis | |
| 443 // of VM bugs. They are hidden so that users will not be encouraged to | |
| 444 // try them as if they were VM ordinary execution options. However, they | |
| 445 // are available in the product version of the VM. Under instruction | |
| 446 // from support engineers, VM customers can turn them on to collect | |
| 447 // diagnostic information about VM problems. To use a VM diagnostic | |
| 448 // option, you must first specify +UnlockDiagnosticVMOptions. | |
| 449 // (This master switch also affects the behavior of -Xprintflags.) | |
|
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450 // |
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451 // experimental flags are in support of features that are not |
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452 // part of the officially supported product, but are available |
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453 // for experimenting with. They could, for example, be performance |
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454 // features that may not have undergone full or rigorous QA, but which may |
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455 // help performance in some cases and released for experimentation |
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456 // by the community of users and developers. This flag also allows one to |
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457 // be able to build a fully supported product that nonetheless also |
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458 // ships with some unsupported, lightly tested, experimental features. |
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459 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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460 // UnlockExperimentalVMOptions flag, which allows the control and |
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461 // modification of the experimental flags. |
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462 // |
|
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463 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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464 // and they are not supported on production loads, except under explicit |
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465 // direction from support engineers. |
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466 // |
| 0 | 467 // manageable flags are writeable external product flags. |
| 468 // They are dynamically writeable through the JDK management interface | |
| 469 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
| 470 // These flags are external exported interface (see CCC). The list of | |
| 471 // manageable flags can be queried programmatically through the management | |
| 472 // interface. | |
| 473 // | |
| 474 // A flag can be made as "manageable" only if | |
| 475 // - the flag is defined in a CCC as an external exported interface. | |
| 476 // - the VM implementation supports dynamic setting of the flag. | |
| 477 // This implies that the VM must *always* query the flag variable | |
| 478 // and not reuse state related to the flag state at any given time. | |
| 479 // - you want the flag to be queried programmatically by the customers. | |
| 480 // | |
| 481 // product_rw flags are writeable internal product flags. | |
| 482 // They are like "manageable" flags but for internal/private use. | |
| 483 // The list of product_rw flags are internal/private flags which | |
| 484 // may be changed/removed in a future release. It can be set | |
| 485 // through the management interface to get/set value | |
| 486 // when the name of flag is supplied. | |
| 487 // | |
| 488 // A flag can be made as "product_rw" only if | |
| 489 // - the VM implementation supports dynamic setting of the flag. | |
| 490 // This implies that the VM must *always* query the flag variable | |
| 491 // and not reuse state related to the flag state at any given time. | |
| 492 // | |
| 493 // Note that when there is a need to support develop flags to be writeable, | |
| 494 // it can be done in the same way as product_rw. | |
| 495 | |
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496 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
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497 \ |
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498 lp64_product(bool, UseCompressedOops, false, \ |
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499 "Use 32-bit object references in 64-bit VM " \ |
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500 "lp64_product means flag is always constant in 32 bit VM") \ |
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501 \ |
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502 lp64_product(bool, UseCompressedClassPointers, false, \ |
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503 "Use 32-bit class pointers in 64-bit VM " \ |
|
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504 "lp64_product means flag is always constant in 32 bit VM") \ |
| 0 | 505 \ |
|
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506 notproduct(bool, CheckCompressedOops, true, \ |
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507 "generate checks in encoding/decoding code in debug VM") \ |
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508 \ |
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509 product_pd(uintx, HeapBaseMinAddress, \ |
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510 "OS specific low limit for heap base address") \ |
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511 \ |
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512 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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513 "Print compressed oops base address and encoding mode") \ |
|
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514 \ |
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515 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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516 "Default object alignment in bytes, 8 is minimum") \ |
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517 \ |
|
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518 product(bool, AssumeMP, false, \ |
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519 "Instruct the VM to assume multiple processors are available") \ |
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520 \ |
| 0 | 521 /* UseMembar is theoretically a temp flag used for memory barrier \ |
| 522 * removal testing. It was supposed to be removed before FCS but has \ | |
| 523 * been re-added (see 6401008) */ \ | |
|
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524 product_pd(bool, UseMembar, \ |
| 0 | 525 "(Unstable) Issues membars on thread state transitions") \ |
| 526 \ | |
|
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527 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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528 * that don't support it. This will be replaced by processor detection \ |
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529 * logic. \ |
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530 */ \ |
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531 product(bool, UsePPCLWSYNC, true, \ |
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532 "Use lwsync instruction if true, else use slower sync") \ |
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533 \ |
|
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534 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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535 "Whether to clean the chunk pool asynchronously") \ |
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536 \ |
| 6818 | 537 /* Temporary: See 6948537 */ \ |
|
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538 experimental(bool, UseMemSetInBOT, true, \ |
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539 "(Unstable) uses memset in BOT updates in GC code") \ |
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540 \ |
| 0 | 541 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
|
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542 "Enable normal processing of flags relating to field diagnostics")\ |
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543 \ |
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544 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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545 "Enable normal processing of flags relating to experimental features")\ |
| 0 | 546 \ |
| 547 product(bool, JavaMonitorsInStackTrace, true, \ | |
| 548 "Print info. about Java monitor locks when the stacks are dumped")\ | |
| 549 \ | |
| 550 product_pd(bool, UseLargePages, \ | |
| 551 "Use large page memory") \ | |
| 552 \ | |
|
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553 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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554 "Allocate large pages individually for better affinity") \ |
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555 \ |
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556 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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557 "Fail large pages individual allocation") \ |
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558 \ |
| 0 | 559 develop(bool, TracePageSizes, false, \ |
| 560 "Trace page size selection and usage.") \ | |
| 561 \ | |
| 562 product(bool, UseNUMA, false, \ | |
| 563 "Use NUMA if available") \ | |
| 564 \ | |
| 3885 | 565 product(bool, UseNUMAInterleaving, false, \ |
| 566 "Interleave memory across NUMA nodes if available") \ | |
| 567 \ | |
| 568 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
| 569 "Granularity to use for NUMA interleaving on Windows OS") \ | |
| 570 \ | |
|
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571 product(bool, ForceNUMA, false, \ |
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572 "Force NUMA optimizations on single-node/UMA systems") \ |
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573 \ |
|
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574 product(uintx, NUMAChunkResizeWeight, 20, \ |
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575 "Percentage (0-100) used to weigh the current sample when " \ |
| 0 | 576 "computing exponentially decaying average for " \ |
| 577 "AdaptiveNUMAChunkSizing") \ | |
| 578 \ | |
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579 product(uintx, NUMASpaceResizeRate, 1*G, \ |
| 0 | 580 "Do not reallocate more that this amount per collection") \ |
| 581 \ | |
| 582 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
| 583 "Enable adaptive chunk sizing for NUMA") \ | |
| 584 \ | |
| 585 product(bool, NUMAStats, false, \ | |
| 586 "Print NUMA stats in detailed heap information") \ | |
| 587 \ | |
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588 product(uintx, NUMAPageScanRate, 256, \ |
| 0 | 589 "Maximum number of pages to include in the page scan procedure") \ |
| 590 \ | |
| 591 product_pd(bool, NeedsDeoptSuspend, \ | |
| 592 "True for register window machines (sparc/ia64)") \ | |
| 593 \ | |
| 594 product(intx, UseSSE, 99, \ | |
| 595 "Highest supported SSE instructions set on x86/x64") \ | |
| 596 \ | |
| 6894 | 597 product(bool, UseAES, false, \ |
| 598 "Control whether AES instructions can be used on x86/x64") \ | |
| 599 \ | |
| 0 | 600 product(uintx, LargePageSizeInBytes, 0, \ |
| 601 "Large page size (0 to let VM choose the page size") \ | |
| 602 \ | |
| 603 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
| 604 "Use large pages if max heap is at least this big") \ | |
| 605 \ | |
| 606 product(bool, ForceTimeHighResolution, false, \ | |
| 607 "Using high time resolution(For Win32 only)") \ | |
| 608 \ | |
| 609 develop(bool, TraceItables, false, \ | |
| 610 "Trace initialization and use of itables") \ | |
| 611 \ | |
| 612 develop(bool, TracePcPatching, false, \ | |
| 613 "Trace usage of frame::patch_pc") \ | |
| 614 \ | |
| 615 develop(bool, TraceJumps, false, \ | |
| 616 "Trace assembly jumps in thread ring buffer") \ | |
| 617 \ | |
| 618 develop(bool, TraceRelocator, false, \ | |
| 619 "Trace the bytecode relocator") \ | |
| 620 \ | |
| 621 develop(bool, TraceLongCompiles, false, \ | |
| 622 "Print out every time compilation is longer than " \ | |
| 623 "a given threashold") \ | |
| 624 \ | |
| 625 develop(bool, SafepointALot, false, \ | |
| 626 "Generates a lot of safepoints. Works with " \ | |
| 627 "GuaranteedSafepointInterval") \ | |
| 628 \ | |
| 629 product_pd(bool, BackgroundCompilation, \ | |
| 630 "A thread requesting compilation is not blocked during " \ | |
| 631 "compilation") \ | |
| 632 \ | |
| 633 product(bool, PrintVMQWaitTime, false, \ | |
| 634 "Prints out the waiting time in VM operation queue") \ | |
| 635 \ | |
| 636 develop(bool, NoYieldsInMicrolock, false, \ | |
| 637 "Disable yields in microlock") \ | |
| 638 \ | |
| 639 develop(bool, TraceOopMapGeneration, false, \ | |
| 640 "Shows oopmap generation") \ | |
| 641 \ | |
| 642 product(bool, MethodFlushing, true, \ | |
| 643 "Reclamation of zombie and not-entrant methods") \ | |
| 644 \ | |
| 645 develop(bool, VerifyStack, false, \ | |
| 646 "Verify stack of each thread when it is entering a runtime call") \ | |
| 647 \ | |
|
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648 diagnostic(bool, ForceUnreachable, false, \ |
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|
649 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ |
| 0 | 650 \ |
| 651 notproduct(bool, StressDerivedPointers, false, \ | |
| 652 "Force scavenge when a derived pointers is detected on stack " \ | |
| 653 "after rtm call") \ | |
| 654 \ | |
| 655 develop(bool, TraceDerivedPointers, false, \ | |
| 656 "Trace traversal of derived pointers on stack") \ | |
| 657 \ | |
| 658 notproduct(bool, TraceCodeBlobStacks, false, \ | |
| 659 "Trace stack-walk of codeblobs") \ | |
| 660 \ | |
| 661 product(bool, PrintJNIResolving, false, \ | |
| 662 "Used to implement -v:jni") \ | |
| 663 \ | |
| 664 notproduct(bool, PrintRewrites, false, \ | |
| 665 "Print methods that are being rewritten") \ | |
| 666 \ | |
| 667 product(bool, UseInlineCaches, true, \ | |
| 668 "Use Inline Caches for virtual calls ") \ | |
| 669 \ | |
| 670 develop(bool, InlineArrayCopy, true, \ | |
| 671 "inline arraycopy native that is known to be part of " \ | |
| 672 "base library DLL") \ | |
| 673 \ | |
| 674 develop(bool, InlineObjectHash, true, \ | |
| 675 "inline Object::hashCode() native that is known to be part " \ | |
| 676 "of base library DLL") \ | |
| 677 \ | |
| 678 develop(bool, InlineNatives, true, \ | |
| 679 "inline natives that are known to be part of base library DLL") \ | |
| 680 \ | |
| 681 develop(bool, InlineMathNatives, true, \ | |
| 682 "inline SinD, CosD, etc.") \ | |
| 683 \ | |
| 684 develop(bool, InlineClassNatives, true, \ | |
| 685 "inline Class.isInstance, etc") \ | |
| 686 \ | |
| 687 develop(bool, InlineThreadNatives, true, \ | |
| 688 "inline Thread.currentThread, etc") \ | |
| 689 \ | |
| 690 develop(bool, InlineUnsafeOps, true, \ | |
| 691 "inline memory ops (native methods) from sun.misc.Unsafe") \ | |
| 692 \ | |
|
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693 product(bool, CriticalJNINatives, true, \ |
|
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|
694 "check for critical JNI entry points") \ |
|
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695 \ |
|
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|
696 notproduct(bool, StressCriticalJNINatives, false, \ |
|
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697 "Exercise register saving code in critical natives") \ |
|
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698 \ |
| 681 | 699 product(bool, UseSSE42Intrinsics, false, \ |
| 700 "SSE4.2 versions of intrinsics") \ | |
| 701 \ | |
| 6894 | 702 product(bool, UseAESIntrinsics, false, \ |
| 703 "use intrinsics for AES versions of crypto") \ | |
| 704 \ | |
|
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705 product(bool, UseCRC32Intrinsics, false, \ |
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706 "use intrinsics for java.util.zip.CRC32") \ |
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|
707 \ |
| 0 | 708 develop(bool, TraceCallFixup, false, \ |
| 709 "traces all call fixups") \ | |
| 710 \ | |
| 711 develop(bool, DeoptimizeALot, false, \ | |
| 712 "deoptimize at every exit from the runtime system") \ | |
| 713 \ | |
| 434 | 714 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
| 0 | 715 "a comma separated list of bcis to deoptimize at") \ |
| 716 \ | |
| 717 product(bool, DeoptimizeRandom, false, \ | |
| 718 "deoptimize random frames on random exit from the runtime system")\ | |
| 719 \ | |
| 720 notproduct(bool, ZombieALot, false, \ | |
| 721 "creates zombies (non-entrant) at exit from the runt. system") \ | |
| 722 \ | |
|
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723 product(bool, UnlinkSymbolsALot, false, \ |
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724 "unlink unreferenced symbols from the symbol table at safepoints")\ |
|
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725 \ |
| 0 | 726 notproduct(bool, WalkStackALot, false, \ |
| 727 "trace stack (no print) at every exit from the runtime system") \ | |
| 728 \ | |
| 4006 | 729 product(bool, Debugging, false, \ |
| 0 | 730 "set when executing debug methods in debug.ccp " \ |
| 731 "(to prevent triggering assertions)") \ | |
| 732 \ | |
| 733 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
| 734 "Enable strict checks that safepoints cannot happen for threads " \ | |
| 735 "that used No_Safepoint_Verifier") \ | |
| 736 \ | |
| 737 notproduct(bool, VerifyLastFrame, false, \ | |
| 738 "Verify oops on last frame on entry to VM") \ | |
| 739 \ | |
| 740 develop(bool, TraceHandleAllocation, false, \ | |
| 741 "Prints out warnings when suspicious many handles are allocated") \ | |
| 742 \ | |
| 743 product(bool, UseCompilerSafepoints, true, \ | |
| 744 "Stop at safepoints in compiled code") \ | |
| 745 \ | |
| 746 product(bool, FailOverToOldVerifier, true, \ | |
| 747 "fail over to old verifier when split verifier fails") \ | |
| 748 \ | |
| 749 develop(bool, ShowSafepointMsgs, false, \ | |
| 750 "Show msg. about safepoint synch.") \ | |
| 751 \ | |
| 752 product(bool, SafepointTimeout, false, \ | |
| 753 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
| 754 "milliseconds if failed to reach safepoint") \ | |
| 755 \ | |
| 756 develop(bool, DieOnSafepointTimeout, false, \ | |
| 757 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
| 758 \ | |
| 759 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
| 760 /* typically, at most a few retries are needed */ \ | |
| 761 product(intx, SuspendRetryCount, 50, \ | |
| 762 "Maximum retry count for an external suspend request") \ | |
| 763 \ | |
| 764 product(intx, SuspendRetryDelay, 5, \ | |
| 765 "Milliseconds to delay per retry (* current_retry_count)") \ | |
| 766 \ | |
| 767 product(bool, AssertOnSuspendWaitFailure, false, \ | |
| 768 "Assert/Guarantee on external suspend wait failure") \ | |
| 769 \ | |
| 770 product(bool, TraceSuspendWaitFailures, false, \ | |
| 771 "Trace external suspend wait failures") \ | |
| 772 \ | |
| 773 product(bool, MaxFDLimit, true, \ | |
| 774 "Bump the number of file descriptors to max in solaris.") \ | |
| 775 \ | |
|
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
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parents:
4868
diff
changeset
|
776 diagnostic(bool, LogEvents, true, \ |
|
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
777 "Enable the various ring buffer event logs") \ |
|
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
778 \ |
|
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
779 diagnostic(uintx, LogEventsBufferEntries, 10, \ |
|
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4868
diff
changeset
|
780 "Enable the various ring buffer event logs") \ |
| 0 | 781 \ |
| 782 product(bool, BytecodeVerificationRemote, true, \ | |
| 783 "Enables the Java bytecode verifier for remote classes") \ | |
| 784 \ | |
| 785 product(bool, BytecodeVerificationLocal, false, \ | |
| 786 "Enables the Java bytecode verifier for local classes") \ | |
| 787 \ | |
| 788 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
| 789 "Force exceptions on FP stack under/overflow") \ | |
| 790 \ | |
| 791 develop(bool, VerifyStackAtCalls, false, \ | |
| 792 "Verify that the stack pointer is unchanged after calls") \ | |
| 793 \ | |
| 794 develop(bool, TraceJavaAssertions, false, \ | |
| 795 "Trace java language assertions") \ | |
| 796 \ | |
| 797 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
| 798 "temporary - see javaClasses.cpp") \ | |
| 799 \ | |
| 800 notproduct(bool, PrintMallocFree, false, \ | |
| 801 "Trace calls to C heap malloc/free allocation") \ | |
| 802 \ | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1660
diff
changeset
|
803 product(bool, PrintOopAddress, false, \ |
| 0 | 804 "Always print the location of the oop") \ |
| 805 \ | |
| 806 notproduct(bool, VerifyCodeCacheOften, false, \ | |
| 807 "Verify compiled-code cache often") \ | |
| 808 \ | |
| 809 develop(bool, ZapDeadCompiledLocals, false, \ | |
| 810 "Zap dead locals in compiler frames") \ | |
| 811 \ | |
| 812 notproduct(bool, ZapDeadLocalsOld, false, \ | |
| 813 "Zap dead locals (old version, zaps all frames when " \ | |
| 814 "entering the VM") \ | |
| 815 \ | |
| 816 notproduct(bool, CheckOopishValues, false, \ | |
| 817 "Warn if value contains oop ( requires ZapDeadLocals)") \ | |
| 818 \ | |
| 819 develop(bool, UseMallocOnly, false, \ | |
| 820 "use only malloc/free for allocation (no resource area/arena)") \ | |
| 821 \ | |
| 822 develop(bool, PrintMalloc, false, \ | |
| 823 "print all malloc/free calls") \ | |
| 824 \ | |
| 2250 | 825 develop(bool, PrintMallocStatistics, false, \ |
| 826 "print malloc/free statistics") \ | |
| 827 \ | |
| 0 | 828 develop(bool, ZapResourceArea, trueInDebug, \ |
| 829 "Zap freed resource/arena space with 0xABABABAB") \ | |
| 830 \ | |
| 831 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
| 832 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
| 833 \ | |
| 834 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
| 835 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
| 836 \ | |
|
1836
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
837 notproduct(bool, ZapStackSegments, trueInDebug, \ |
|
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
838 "Zap allocated/freed Stack segments with 0xFADFADED") \ |
|
894b1d7c7e01
6423256: GC stacks should use a better data structure
jcoomes
parents:
1778
diff
changeset
|
839 \ |
|
263
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
840 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
| 0 | 841 "Zap unused heap space with 0xBAADBABE") \ |
| 842 \ | |
|
263
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
843 develop(bool, TraceZapUnusedHeapArea, false, \ |
|
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
844 "Trace zapping of unused heap space") \ |
|
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
845 \ |
|
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
846 develop(bool, CheckZapUnusedHeapArea, false, \ |
|
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
847 "Check zapping of unused heap space") \ |
|
12eea04c8b06
6672698: mangle_unused_area() should not remangle the entire heap at each collection.
jmasa
parents:
219
diff
changeset
|
848 \ |
|
481
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
849 develop(bool, ZapFillerObjects, trueInDebug, \ |
|
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
850 "Zap filler objects with 0xDEAFBABE") \ |
|
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
462
diff
changeset
|
851 \ |
| 0 | 852 develop(bool, PrintVMMessages, true, \ |
| 853 "Print vm messages on console") \ | |
| 854 \ | |
| 855 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
| 856 "Print the time the application has been running") \ | |
| 857 \ | |
| 858 product(bool, PrintGCApplicationStoppedTime, false, \ | |
| 859 "Print the time the application has been stopped") \ | |
| 860 \ | |
| 6605 | 861 diagnostic(bool, VerboseVerification, false, \ |
| 862 "Display detailed verification details") \ | |
| 863 \ | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
864 notproduct(uintx, ErrorHandlerTest, 0, \ |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
865 "If > 0, provokes an error after VM initialization; the value" \ |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
866 "determines which error to provoke. See test_error_handler()" \ |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
867 "in debug.cpp.") \ |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1367
diff
changeset
|
868 \ |
| 0 | 869 develop(bool, Verbose, false, \ |
| 870 "Prints additional debugging information from other modes") \ | |
| 871 \ | |
| 872 develop(bool, PrintMiscellaneous, false, \ | |
| 873 "Prints uncategorized debugging information (requires +Verbose)") \ | |
| 874 \ | |
| 875 develop(bool, WizardMode, false, \ | |
| 876 "Prints much more debugging information") \ | |
| 877 \ | |
| 878 product(bool, ShowMessageBoxOnError, false, \ | |
| 879 "Keep process alive on VM fatal error") \ | |
| 880 \ | |
|
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
881 product(bool, CreateMinidumpOnCrash, false, \ |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
882 "Create minidump on VM fatal error") \ |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2199
diff
changeset
|
883 \ |
| 0 | 884 product_pd(bool, UseOSErrorReporting, \ |
| 885 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
| 886 \ | |
| 887 product(bool, SuppressFatalErrorMessage, false, \ | |
| 888 "Do NO Fatal Error report [Avoid deadlock]") \ | |
| 889 \ | |
| 890 product(ccstrlist, OnError, "", \ | |
| 891 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
| 892 "for examples") \ | |
| 893 \ | |
| 894 product(ccstrlist, OnOutOfMemoryError, "", \ | |
| 895 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
| 896 \ | |
|
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
897 manageable(bool, HeapDumpBeforeFullGC, false, \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
898 "Dump heap to file before any major stop-world GC") \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
899 \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
900 manageable(bool, HeapDumpAfterFullGC, false, \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
901 "Dump heap to file after any major stop-world GC") \ |
|
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
902 \ |
| 0 | 903 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
| 904 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
| 905 \ | |
| 906 manageable(ccstr, HeapDumpPath, NULL, \ | |
| 907 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ | |
| 908 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ | |
| 909 "in the working directory)") \ | |
| 910 \ | |
| 911 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
| 912 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
| 913 "when the heap usage is larger than this") \ | |
| 914 \ | |
| 915 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
| 916 "Approximate segment size when generating a segmented heap dump") \ | |
| 917 \ | |
| 918 develop(bool, BreakAtWarning, false, \ | |
| 919 "Execute breakpoint upon encountering VM warning") \ | |
| 920 \ | |
| 921 develop(bool, TraceVMOperation, false, \ | |
| 922 "Trace vm operations") \ | |
| 923 \ | |
| 924 develop(bool, UseFakeTimers, false, \ | |
| 925 "Tells whether the VM should use system time or a fake timer") \ | |
| 926 \ | |
| 6197 | 927 product(ccstr, NativeMemoryTracking, "off", \ |
| 928 "Native memory tracking options") \ | |
| 929 \ | |
|
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
930 diagnostic(bool, PrintNMTStatistics, false, \ |
|
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
931 "Print native memory tracking summary data if it is on") \ |
|
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
932 \ |
|
8810
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
933 diagnostic(bool, AutoShutdownNMT, true, \ |
|
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
934 "Automatically shutdown native memory tracking under stress " \ |
|
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
935 "situation. When set to false, native memory tracking tries to " \ |
|
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
936 "stay alive at the expense of JVM performance") \ |
|
06db4c0afbf3
8009298: NMT: Special version of class loading/unloading with runThese stresses out NMT
zgu
parents:
8802
diff
changeset
|
937 \ |
| 0 | 938 diagnostic(bool, LogCompilation, false, \ |
|
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12190
diff
changeset
|
939 "Log compilation activity in detail to LogFile") \ |
| 0 | 940 \ |
| 941 product(bool, PrintCompilation, false, \ | |
| 942 "Print compilations") \ | |
| 943 \ | |
| 944 diagnostic(bool, TraceNMethodInstalls, false, \ | |
| 945 "Trace nmethod intallation") \ | |
| 946 \ | |
|
4119
7793051af7d6
7110058: change default for ScavengeRootsInCode to 2
twisti
parents:
4065
diff
changeset
|
947 diagnostic(intx, ScavengeRootsInCode, 2, \ |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
948 "0: do not allow scavengable oops in the code cache; " \ |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
949 "1: allow scavenging from the code cache; " \ |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
950 "2: emit as many constants as the compiler can see") \ |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
910
diff
changeset
|
951 \ |
| 0 | 952 product(bool, AlwaysRestoreFPU, false, \ |
| 953 "Restore the FPU control word after every JNI call (expensive)") \ | |
| 954 \ | |
|
4064
670a74b863fc
7107042: assert(no_dead_loop) failed: dead loop detected
kvn
parents:
4059
diff
changeset
|
955 diagnostic(bool, PrintCompilation2, false, \ |
| 0 | 956 "Print additional statistics per compilation") \ |
| 957 \ | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
958 diagnostic(bool, PrintAdapterHandlers, false, \ |
| 0 | 959 "Print code generated for i2c/c2i adapters") \ |
| 960 \ | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
961 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
962 "Verify that i2c/c2i adapters are called properly") \ |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
963 \ |
|
1207
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
964 develop(bool, VerifyAdapterSharing, false, \ |
|
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
965 "Verify that the code for shared adapters is the equivalent") \ |
|
74c848d437ab
6921922: fix for 6911204 breaks tagged stack interpreter
never
parents:
1206
diff
changeset
|
966 \ |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
967 diagnostic(bool, PrintAssembly, false, \ |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
968 "Print assembly code (using external disassembler.so)") \ |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
969 \ |
|
370
885fe0f95828
6744783: HotSpot segfaults if given -XX options with an empty string argument
never
parents:
325
diff
changeset
|
970 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
971 "Options string passed to disassembler.so") \ |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
972 \ |
|
12356
359f7e70ae7f
Reduce HotSpot diff and fix previous merge
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12355
diff
changeset
|
973 product(bool, PrintNMethodStatistics, false, \ |
|
359f7e70ae7f
Reduce HotSpot diff and fix previous merge
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12355
diff
changeset
|
974 "Print a summary statistic for the generated nmethods") \ |
|
359f7e70ae7f
Reduce HotSpot diff and fix previous merge
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12355
diff
changeset
|
975 \ |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
976 diagnostic(bool, PrintNMethods, false, \ |
| 0 | 977 "Print assembly code for nmethods when generated") \ |
| 978 \ | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
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diff
changeset
|
979 diagnostic(bool, PrintNativeNMethods, false, \ |
| 0 | 980 "Print assembly code for native nmethods when generated") \ |
| 981 \ | |
| 982 develop(bool, PrintDebugInfo, false, \ | |
| 983 "Print debug information for all nmethods when generated") \ | |
| 984 \ | |
| 985 develop(bool, PrintRelocations, false, \ | |
| 986 "Print relocation information for all nmethods when generated") \ | |
| 987 \ | |
| 988 develop(bool, PrintDependencies, false, \ | |
| 989 "Print dependency information for all nmethods when generated") \ | |
| 990 \ | |
| 991 develop(bool, PrintExceptionHandlers, false, \ | |
| 992 "Print exception handler tables for all nmethods when generated") \ | |
| 993 \ | |
|
7428
2d6c433b1f38
8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents:
6985
diff
changeset
|
994 develop(bool, StressCompiledExceptionHandlers, false, \ |
|
2d6c433b1f38
8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents:
6985
diff
changeset
|
995 "Exercise compiled exception handlers") \ |
|
2d6c433b1f38
8004741: Missing compiled exception handle table entry for multidimensional array allocation
kvn
parents:
6985
diff
changeset
|
996 \ |
| 0 | 997 develop(bool, InterceptOSException, false, \ |
| 998 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
| 999 "exception happens") \ | |
| 1000 \ | |
|
7595
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
1001 product(bool, PrintCodeCache, false, \ |
|
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
1002 "Print the code cache memory usage when exiting") \ |
| 0 | 1003 \ |
| 1004 develop(bool, PrintCodeCache2, false, \ | |
|
7595
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
1005 "Print detailed usage info on the code cache when exiting") \ |
|
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
1006 \ |
|
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
1007 product(bool, PrintCodeCacheOnCompilation, false, \ |
|
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
1008 "Print the code cache memory usage each time a method is compiled") \ |
| 0 | 1009 \ |
|
100
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1010 diagnostic(bool, PrintStubCode, false, \ |
| 0 | 1011 "Print generated stub code") \ |
| 1012 \ | |
| 1013 product(bool, StackTraceInThrowable, true, \ | |
| 1014 "Collect backtrace in throwable when exception happens") \ | |
| 1015 \ | |
| 1016 product(bool, OmitStackTraceInFastThrow, true, \ | |
| 1017 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
| 1018 \ | |
| 1019 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
| 1020 "Prints byte code statictics when dumping profiler output") \ | |
| 1021 \ | |
| 1022 product(bool, ProfilerRecordPC, false, \ | |
| 1023 "Collects tick for each 16 byte interval of compiled code") \ | |
| 1024 \ | |
| 1064 | 1025 product(bool, ProfileVM, false, \ |
| 0 | 1026 "Profiles ticks that fall within VM (either in the VM Thread " \ |
| 1027 "or VM code called through stubs)") \ | |
| 1028 \ | |
| 1029 product(bool, ProfileIntervals, false, \ | |
| 1030 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
| 1031 \ | |
| 1032 notproduct(bool, ProfilerCheckIntervals, false, \ | |
| 1033 "Collect and print info on spacing of profiler ticks") \ | |
| 1034 \ | |
| 1035 develop(bool, PrintJVMWarnings, false, \ | |
| 1036 "Prints warnings for unimplemented JVM functions") \ | |
| 1037 \ | |
|
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1038 product(bool, PrintWarnings, true, \ |
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1039 "Prints JVM warnings to output stream") \ |
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1040 \ |
| 0 | 1041 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
| 1042 "Prints warnings for stalled SpinLocks") \ | |
| 1043 \ | |
| 1044 product(bool, RegisterFinalizersAtInit, true, \ | |
| 1045 "Register finalizable objects at end of Object.<init> or " \ | |
| 1064 | 1046 "after allocation") \ |
| 0 | 1047 \ |
| 1048 develop(bool, RegisterReferences, true, \ | |
| 1049 "Tells whether the VM should register soft/weak/final/phantom " \ | |
| 1050 "references") \ | |
| 1051 \ | |
| 1052 develop(bool, IgnoreRewrites, false, \ | |
| 1053 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
| 1054 "This is unsafe!") \ | |
| 1055 \ | |
| 1056 develop(bool, PrintCodeCacheExtension, false, \ | |
| 1057 "Print extension of code cache") \ | |
| 1058 \ | |
| 1059 develop(bool, UsePrivilegedStack, true, \ | |
| 1060 "Enable the security JVM functions") \ | |
| 1061 \ | |
| 1062 develop(bool, ProtectionDomainVerification, true, \ | |
| 1063 "Verifies protection domain before resolution in system " \ | |
| 1064 "dictionary") \ | |
| 1065 \ | |
| 1066 product(bool, ClassUnloading, true, \ | |
| 1067 "Do unloading of classes") \ | |
| 1068 \ | |
| 1069 develop(bool, DisableStartThread, false, \ | |
| 1070 "Disable starting of additional Java threads " \ | |
| 1071 "(for debugging only)") \ | |
| 1072 \ | |
| 1073 develop(bool, MemProfiling, false, \ | |
| 1074 "Write memory usage profiling to log file") \ | |
| 1075 \ | |
| 1076 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
| 1077 "Prints the system dictionary at exit") \ | |
| 1078 \ | |
|
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1079 experimental(intx, PredictedLoadedClassCount, 0, \ |
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1080 "Experimental: Tune loaded class cache starting size.") \ |
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1081 \ |
| 0 | 1082 diagnostic(bool, UnsyncloadClass, false, \ |
| 514 | 1083 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
| 1084 "class loader must call VM synchronized for findClass " \ | |
| 1085 "and defineClass.") \ | |
| 1086 \ | |
| 1087 product(bool, AlwaysLockClassLoader, false, \ | |
| 1088 "Require the VM to acquire the class loader lock before calling " \ | |
| 1089 "loadClass() even for class loaders registering " \ | |
| 1064 | 1090 "as parallel capable") \ |
| 514 | 1091 \ |
| 1092 product(bool, AllowParallelDefineClass, false, \ | |
| 1093 "Allow parallel defineClass requests for class loaders " \ | |
| 1064 | 1094 "registering as parallel capable") \ |
| 514 | 1095 \ |
| 1096 product(bool, MustCallLoadClassInternal, false, \ | |
| 1064 | 1097 "Call loadClassInternal() rather than loadClass()") \ |
| 0 | 1098 \ |
| 1099 product_pd(bool, DontYieldALot, \ | |
| 1100 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
| 1101 \ | |
| 1102 product_pd(bool, ConvertSleepToYield, \ | |
| 1103 "Converts sleep(0) to thread yield " \ | |
| 1104 "(may be off for SOLARIS to improve GUI)") \ | |
| 1105 \ | |
| 1106 product(bool, ConvertYieldToSleep, false, \ | |
| 1107 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
| 1108 "behavior (SOLARIS only)") \ | |
| 1109 \ | |
| 1110 product(bool, UseBoundThreads, true, \ | |
| 1111 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
| 1112 \ | |
| 1113 develop(bool, UseDetachedThreads, true, \ | |
| 1114 "Use detached threads that are recycled upon termination " \ | |
| 1115 "(for SOLARIS only)") \ | |
| 1116 \ | |
| 1117 product(bool, UseLWPSynchronization, true, \ | |
| 1118 "Use LWP-based instead of libthread-based synchronization " \ | |
| 1119 "(SPARC only)") \ | |
| 1120 \ | |
|
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1121 product(ccstr, SyncKnobs, NULL, \ |
| 0 | 1122 "(Unstable) Various monitor synchronization tunables") \ |
| 1123 \ | |
| 1124 product(intx, EmitSync, 0, \ | |
| 1125 "(Unsafe,Unstable) " \ | |
| 1126 " Controls emission of inline sync fast-path code") \ | |
| 1127 \ | |
| 1587 | 1128 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
| 1129 \ | |
| 1130 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
| 1131 \ | |
| 0 | 1132 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ |
| 1133 \ | |
| 1134 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
| 1135 \ | |
| 1136 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
| 1137 \ | |
| 7587 | 1138 product(intx, hashCode, 5, \ |
| 0 | 1139 "(Unstable) select hashCode generation algorithm" ) \ |
| 1140 \ | |
| 1141 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
| 1142 "(Unstable, Linux-specific)" \ | |
| 1143 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
| 1144 \ | |
| 1064 | 1145 product(bool, FilterSpuriousWakeups, true, \ |
| 1146 "Prevent spurious or premature wakeups from object.wait " \ | |
| 1147 "(Solaris only)") \ | |
| 0 | 1148 \ |
| 1149 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
| 1150 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
| 1151 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
| 1152 \ | |
| 1153 develop(bool, UsePthreads, false, \ | |
| 1154 "Use pthread-based instead of libthread-based synchronization " \ | |
| 1155 "(SPARC only)") \ | |
| 1156 \ | |
| 1157 product(bool, AdjustConcurrency, false, \ | |
| 1158 "call thr_setconcurrency at thread create time to avoid " \ | |
| 1159 "LWP starvation on MP systems (For Solaris Only)") \ | |
| 1160 \ | |
| 1161 product(bool, ReduceSignalUsage, false, \ | |
| 1162 "Reduce the use of OS signals in Java and/or the VM") \ | |
| 1163 \ | |
| 1164 develop_pd(bool, ShareVtableStubs, \ | |
| 1165 "Share vtable stubs (smaller code but worse branch prediction") \ | |
| 1166 \ | |
| 1167 develop(bool, LoadLineNumberTables, true, \ | |
| 1168 "Tells whether the class file parser loads line number tables") \ | |
| 1169 \ | |
| 1170 develop(bool, LoadLocalVariableTables, true, \ | |
| 1171 "Tells whether the class file parser loads local variable tables")\ | |
| 1172 \ | |
| 1173 develop(bool, LoadLocalVariableTypeTables, true, \ | |
| 1174 "Tells whether the class file parser loads local variable type tables")\ | |
| 1175 \ | |
| 1176 product(bool, AllowUserSignalHandlers, false, \ | |
| 1177 "Do not complain if the application installs signal handlers " \ | |
| 1178 "(Solaris & Linux only)") \ | |
| 1179 \ | |
| 1180 product(bool, UseSignalChaining, true, \ | |
| 1181 "Use signal-chaining to invoke signal handlers installed " \ | |
| 1182 "by the application (Solaris & Linux only)") \ | |
| 1183 \ | |
| 1184 product(bool, UseAltSigs, false, \ | |
| 1185 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
| 1064 | 1186 "internal signals (Solaris only)") \ |
| 0 | 1187 \ |
| 1188 product(bool, AllowJNIEnvProxy, false, \ | |
| 1189 "Allow JNIEnv proxies for jdbx") \ | |
| 1190 \ | |
| 1191 product(bool, JNIDetachReleasesMonitors, true, \ | |
| 1192 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
| 1193 \ | |
| 1194 product(bool, RestoreMXCSROnJNICalls, false, \ | |
| 1195 "Restore MXCSR when returning from JNI calls") \ | |
| 1196 \ | |
| 1197 product(bool, CheckJNICalls, false, \ | |
| 1198 "Verify all arguments to JNI calls") \ | |
| 1199 \ | |
| 1200 product(bool, UseFastJNIAccessors, true, \ | |
| 1201 "Use optimized versions of Get<Primitive>Field") \ | |
| 1202 \ | |
| 1203 product(bool, EagerXrunInit, false, \ | |
| 1204 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
| 1205 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
| 1206 \ | |
| 1207 product(bool, PreserveAllAnnotations, false, \ | |
| 1208 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
| 1209 \ | |
| 1210 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
| 1211 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
| 1212 \ | |
| 1213 product(bool, LazyBootClassLoader, true, \ | |
| 1214 "Enable/disable lazy opening of boot class path entries") \ | |
| 1215 \ | |
| 405 | 1216 product(bool, UseXMMForArrayCopy, false, \ |
| 1217 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
| 1218 \ | |
| 0 | 1219 product(intx, FieldsAllocationStyle, 1, \ |
|
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1220 "0 - type based with oops first, 1 - with oops last, " \ |
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1221 "2 - oops in super and sub classes are together") \ |
| 0 | 1222 \ |
| 1223 product(bool, CompactFields, true, \ | |
| 1224 "Allocate nonstatic fields in gaps between previous fields") \ | |
| 1225 \ | |
| 7587 | 1226 notproduct(bool, PrintFieldLayout, false, \ |
| 1227 "Print field layout for each class") \ | |
| 1228 \ | |
| 1229 product(intx, ContendedPaddingWidth, 128, \ | |
| 1230 "How many bytes to pad the fields/classes marked @Contended with")\ | |
| 1231 \ | |
| 1232 product(bool, EnableContended, true, \ | |
| 1233 "Enable @Contended annotation support") \ | |
| 1234 \ | |
| 1235 product(bool, RestrictContended, true, \ | |
| 1236 "Restrict @Contended to trusted classes") \ | |
| 1237 \ | |
| 0 | 1238 product(bool, UseBiasedLocking, true, \ |
| 1239 "Enable biased locking in JVM") \ | |
| 1240 \ | |
| 1241 product(intx, BiasedLockingStartupDelay, 4000, \ | |
| 1242 "Number of milliseconds to wait before enabling biased locking") \ | |
| 1243 \ | |
| 1244 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
| 1245 "Print statistics of biased locking in JVM") \ | |
| 1246 \ | |
| 1247 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
| 1248 "Threshold of number of revocations per type to try to " \ | |
| 1249 "rebias all objects in the heap of that type") \ | |
| 1250 \ | |
| 1251 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
| 1252 "Threshold of number of revocations per type to permanently " \ | |
| 1253 "revoke biases of all objects in the heap of that type") \ | |
| 1254 \ | |
| 1255 product(intx, BiasedLockingDecayTime, 25000, \ | |
| 1256 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
| 1257 "type after previous bulk rebias") \ | |
| 1258 \ | |
| 1259 /* tracing */ \ | |
| 1260 \ | |
| 1261 notproduct(bool, TraceRuntimeCalls, false, \ | |
| 1262 "Trace run-time calls") \ | |
| 1263 \ | |
| 1264 develop(bool, TraceJNICalls, false, \ | |
| 1265 "Trace JNI calls") \ | |
| 1266 \ | |
| 1267 notproduct(bool, TraceJVMCalls, false, \ | |
| 1268 "Trace JVM calls") \ | |
| 1269 \ | |
|
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1270 product(ccstr, TraceJVMTI, NULL, \ |
| 0 | 1271 "Trace flags for JVMTI functions and events") \ |
| 1272 \ | |
| 1273 /* This option can change an EMCP method into an obsolete method. */ \ | |
| 1274 /* This can affect tests that except specific methods to be EMCP. */ \ | |
| 1275 /* This option should be used with caution. */ \ | |
| 1276 product(bool, StressLdcRewrite, false, \ | |
| 1277 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
| 1278 \ | |
| 1279 product(intx, TraceRedefineClasses, 0, \ | |
| 1280 "Trace level for JVMTI RedefineClasses") \ | |
| 1281 \ | |
| 1574 | 1282 develop(bool, StressMethodComparator, false, \ |
| 1283 "run the MethodComparator on all loaded methods") \ | |
| 1284 \ | |
| 0 | 1285 /* change to false by default sometime after Mustang */ \ |
| 1286 product(bool, VerifyMergedCPBytecodes, true, \ | |
| 1287 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
| 1288 \ | |
| 1289 develop(bool, TraceJNIHandleAllocation, false, \ | |
| 1290 "Trace allocation/deallocation of JNI handle blocks") \ | |
| 1291 \ | |
| 1292 develop(bool, TraceThreadEvents, false, \ | |
| 1293 "Trace all thread events") \ | |
| 1294 \ | |
| 1295 develop(bool, TraceBytecodes, false, \ | |
| 1296 "Trace bytecode execution") \ | |
| 1297 \ | |
| 1298 develop(bool, TraceClassInitialization, false, \ | |
| 1299 "Trace class initialization") \ | |
| 1300 \ | |
| 1301 develop(bool, TraceExceptions, false, \ | |
| 1302 "Trace exceptions") \ | |
| 1303 \ | |
| 1304 develop(bool, TraceICs, false, \ | |
| 1305 "Trace inline cache changes") \ | |
| 1306 \ | |
| 1307 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
| 1308 "Trace method invocation counter overflow") \ | |
| 1309 \ | |
| 1310 develop(bool, TraceInlineCacheClearing, false, \ | |
| 1311 "Trace clearing of inline caches in nmethods") \ | |
| 1312 \ | |
| 1313 develop(bool, TraceDependencies, false, \ | |
| 1314 "Trace dependencies") \ | |
| 1315 \ | |
| 1316 develop(bool, VerifyDependencies, trueInDebug, \ | |
| 1317 "Exercise and verify the compilation dependency mechanism") \ | |
| 1318 \ | |
| 1319 develop(bool, TraceNewOopMapGeneration, false, \ | |
| 1320 "Trace OopMapGeneration") \ | |
| 1321 \ | |
| 1322 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
| 1323 "Trace OopMapGeneration: print detailed cell states") \ | |
| 1324 \ | |
| 1325 develop(bool, TimeOopMap, false, \ | |
| 1326 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
| 1327 \ | |
| 1328 develop(bool, TimeOopMap2, false, \ | |
| 1329 "Time calls to GenerateOopMap::compute_map() individually") \ | |
| 1330 \ | |
| 1331 develop(bool, TraceMonitorMismatch, false, \ | |
| 1332 "Trace monitor matching failures during OopMapGeneration") \ | |
| 1333 \ | |
| 1334 develop(bool, TraceOopMapRewrites, false, \ | |
| 1335 "Trace rewritting of method oops during oop map generation") \ | |
| 1336 \ | |
| 1337 develop(bool, TraceSafepoint, false, \ | |
| 1338 "Trace safepoint operations") \ | |
| 1339 \ | |
| 1340 develop(bool, TraceICBuffer, false, \ | |
| 1341 "Trace usage of IC buffer") \ | |
| 1342 \ | |
| 1343 develop(bool, TraceCompiledIC, false, \ | |
| 1344 "Trace changes of compiled IC") \ | |
| 1345 \ | |
| 1346 notproduct(bool, TraceZapDeadLocals, false, \ | |
| 1347 "Trace zapping dead locals") \ | |
| 1348 \ | |
| 1349 develop(bool, TraceStartupTime, false, \ | |
| 1350 "Trace setup time") \ | |
| 1351 \ | |
| 1352 develop(bool, TraceProtectionDomainVerification, false, \ | |
| 1353 "Trace protection domain verifcation") \ | |
| 1354 \ | |
| 1355 develop(bool, TraceClearedExceptions, false, \ | |
| 1356 "Prints when an exception is forcibly cleared") \ | |
| 1357 \ | |
| 1358 product(bool, TraceClassResolution, false, \ | |
| 1359 "Trace all constant pool resolutions (for debugging)") \ | |
| 1360 \ | |
| 1361 product(bool, TraceBiasedLocking, false, \ | |
| 1362 "Trace biased locking in JVM") \ | |
| 1363 \ | |
| 1364 product(bool, TraceMonitorInflation, false, \ | |
| 1365 "Trace monitor inflation in JVM") \ | |
| 1366 \ | |
| 1367 /* gc */ \ | |
| 1368 \ | |
| 1369 product(bool, UseSerialGC, false, \ | |
|
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1370 "Use the serial garbage collector") \ |
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1371 \ |
|
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1372 product(bool, UseG1GC, false, \ |
|
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1373 "Use the Garbage-First garbage collector") \ |
| 0 | 1374 \ |
| 1375 product(bool, UseParallelGC, false, \ | |
| 1376 "Use the Parallel Scavenge garbage collector") \ | |
| 1377 \ | |
| 1378 product(bool, UseParallelOldGC, false, \ | |
| 1379 "Use the Parallel Old garbage collector") \ | |
| 1380 \ | |
| 1381 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
| 1382 "How often should we maximally compact the heap (not allowing " \ | |
| 1383 "any dead space)") \ | |
| 1384 \ | |
| 1385 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
| 1386 "The collection count for the first maximum compaction") \ | |
| 1387 \ | |
| 1388 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
| 1389 "In the Parallel Old garbage collector maximum compaction for " \ | |
| 1390 "a system GC") \ | |
| 1391 \ | |
| 1392 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
| 1393 "The mean used by the par compact dead wood" \ | |
| 1394 "limiter (a number between 0-100).") \ | |
| 1395 \ | |
| 1396 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
| 1397 "The standard deviation used by the par compact dead wood" \ | |
| 1398 "limiter (a number between 0-100).") \ | |
| 1399 \ | |
| 1400 product(uintx, ParallelGCThreads, 0, \ | |
| 1401 "Number of parallel threads parallel gc will use") \ | |
| 1402 \ | |
|
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1403 product(bool, UseDynamicNumberOfGCThreads, false, \ |
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1404 "Dynamically choose the number of parallel threads " \ |
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1405 "parallel gc will use") \ |
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1406 \ |
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1407 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
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1408 "Force dynamic selection of the number of" \ |
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1409 "parallel threads parallel gc will use to aid debugging") \ |
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1410 \ |
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1411 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
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1412 "Size of heap (bytes) per GC thread used in calculating the " \ |
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1413 "number of GC threads") \ |
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1414 \ |
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1415 product(bool, TraceDynamicGCThreads, false, \ |
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1416 "Trace the dynamic GC thread usage") \ |
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1417 \ |
|
483
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changeset
|
1418 develop(bool, ParallelOldGCSplitALot, false, \ |
|
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diff
changeset
|
1419 "Provoke splitting (copying data from a young gen space to" \ |
|
0f773163217d
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jcoomes
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481
diff
changeset
|
1420 "multiple destination spaces)") \ |
|
0f773163217d
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481
diff
changeset
|
1421 \ |
|
0f773163217d
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481
diff
changeset
|
1422 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
|
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diff
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|
1423 "How often to provoke splitting a young gen space") \ |
| 0 | 1424 \ |
| 1284 | 1425 product(uintx, ConcGCThreads, 0, \ |
| 1426 "Number of threads concurrent gc will use") \ | |
|
342
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|
1427 \ |
| 0 | 1428 product(uintx, YoungPLABSize, 4096, \ |
| 1429 "Size of young gen promotion labs (in HeapWords)") \ | |
| 1430 \ | |
| 1431 product(uintx, OldPLABSize, 1024, \ | |
| 1432 "Size of old gen promotion labs (in HeapWords)") \ | |
| 1433 \ | |
| 1434 product(uintx, GCTaskTimeStampEntries, 200, \ | |
| 1435 "Number of time stamp entries per gc worker thread") \ | |
| 1436 \ | |
| 1437 product(bool, AlwaysTenure, false, \ | |
| 1438 "Always tenure objects in eden. (ParallelGC only)") \ | |
| 1439 \ | |
| 1440 product(bool, NeverTenure, false, \ | |
| 1064 | 1441 "Never tenure objects in eden, May tenure on overflow " \ |
| 1442 "(ParallelGC only)") \ | |
| 0 | 1443 \ |
| 1444 product(bool, ScavengeBeforeFullGC, true, \ | |
| 1064 | 1445 "Scavenge youngest generation before each full GC, " \ |
| 1446 "used with UseParallelGC") \ | |
| 0 | 1447 \ |
| 1448 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
| 1449 "Allow scavenges to occur when to_space contains objects.") \ | |
| 1450 \ | |
| 1451 product(bool, UseConcMarkSweepGC, false, \ | |
| 1452 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
| 1453 \ | |
| 1454 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
| 1455 "A System.gc() request invokes a concurrent collection;" \ | |
| 1456 " (effective only when UseConcMarkSweepGC)") \ | |
| 1457 \ | |
| 1458 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
| 1064 | 1459 "A System.gc() request invokes a concurrent collection and " \ |
| 1460 "also unloads classes during such a concurrent gc cycle " \ | |
| 1461 "(effective only when UseConcMarkSweepGC)") \ | |
| 0 | 1462 \ |
|
1520
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|
1463 product(bool, GCLockerInvokesConcurrent, false, \ |
|
bb843ebc7c55
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diff
changeset
|
1464 "The exit of a JNI CS necessitating a scavenge also" \ |
|
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
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1518
diff
changeset
|
1465 " kicks off a bkgrd concurrent collection") \ |
|
bb843ebc7c55
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diff
changeset
|
1466 \ |
|
1991
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
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diff
changeset
|
1467 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
|
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
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parents:
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diff
changeset
|
1468 "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:
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diff
changeset
|
1469 "is active (as a percentage)") \ |
|
016a3628c885
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changeset
|
1470 \ |
|
8853
2e093b564241
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changeset
|
1471 diagnostic(intx, GCLockerRetryAllocationCount, 2, \ |
|
2e093b564241
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diff
changeset
|
1472 "Number of times to retry allocations when" \ |
|
2e093b564241
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diff
changeset
|
1473 " blocked by the GC locker") \ |
|
2e093b564241
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|
1474 \ |
| 0 | 1475 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
| 1476 "Use Adaptive Free Lists in the CMS generation") \ | |
| 1477 \ | |
| 1478 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
| 1479 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
| 1480 \ | |
| 1481 develop(bool, RotateCMSCollectionTypes, false, \ | |
| 1482 "Rotate the CMS collections among concurrent and STW") \ | |
| 1483 \ | |
| 1484 product(bool, UseCMSBestFit, true, \ | |
| 1485 "Use CMS best fit allocation strategy") \ | |
| 1486 \ | |
| 1487 product(bool, UseCMSCollectionPassing, true, \ | |
| 1488 "Use passing of collection from background to foreground") \ | |
| 1489 \ | |
| 1490 product(bool, UseParNewGC, false, \ | |
| 1491 "Use parallel threads in the new generation.") \ | |
| 1492 \ | |
| 1493 product(bool, ParallelGCVerbose, false, \ | |
| 1494 "Verbose output for parallel GC.") \ | |
| 1495 \ | |
|
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|
1496 product(uintx, ParallelGCBufferWastePct, 10, \ |
|
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|
1497 "Wasted fraction of parallel allocation buffer.") \ |
| 0 | 1498 \ |
|
3357
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changeset
|
1499 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
|
fc2b798ab316
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changeset
|
1500 "Retain parallel allocation buffers across scavenges; " \ |
|
fc2b798ab316
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changeset
|
1501 " -- disabled because this currently conflicts with " \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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changeset
|
1502 " parallel card scanning under certain conditions ") \ |
| 0 | 1503 \ |
|
10287
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|
1504 product(uintx, TargetPLABWastePct, 10, \ |
|
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|
1505 "Target wasted space in last buffer as percent of overall " \ |
|
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|
1506 "allocation") \ |
| 0 | 1507 \ |
| 1508 product(uintx, PLABWeight, 75, \ | |
| 1509 "Percentage (0-100) used to weight the current sample when" \ | |
| 1510 "computing exponentially decaying average for ResizePLAB.") \ | |
| 1511 \ | |
| 1512 product(bool, ResizePLAB, true, \ | |
| 1513 "Dynamically resize (survivor space) promotion labs") \ | |
| 1514 \ | |
| 1515 product(bool, PrintPLAB, false, \ | |
| 1516 "Print (survivor space) promotion labs sizing decisions") \ | |
| 1517 \ | |
| 1518 product(intx, ParGCArrayScanChunk, 50, \ | |
| 1519 "Scan a subset and push remainder, if array is bigger than this") \ | |
| 1520 \ | |
| 695 | 1521 product(bool, ParGCUseLocalOverflow, false, \ |
| 1522 "Instead of a global overflow list, use local overflow stacks") \ | |
| 1523 \ | |
|
679
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changeset
|
1524 product(bool, ParGCTrimOverflow, true, \ |
| 695 | 1525 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
|
679
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|
1526 \ |
| 534 | 1527 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
| 1528 "Whether we should simulate work queue overflow in ParNew") \ | |
| 1529 \ | |
| 1530 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
| 1064 | 1531 "An `interval' counter that determines how frequently " \ |
| 1532 "we simulate overflow; a smaller number increases frequency") \ | |
| 534 | 1533 \ |
| 1534 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
| 0 | 1535 "The desired number of objects to claim from the overflow list") \ |
| 1536 \ | |
|
4728
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|
1537 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
|
3357
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changeset
|
1538 "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
|
1539 "card table scanning work into") \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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|
1540 \ |
|
fc2b798ab316
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changeset
|
1541 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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diff
changeset
|
1542 "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
|
1543 "during card table scanning") \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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|
1544 \ |
|
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
ysr
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3325
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changeset
|
1545 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
| 0 | 1546 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
| 1547 "parallel GC.") \ | |
| 1548 \ | |
|
1145
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|
1549 product(uintx, OldPLABWeight, 50, \ |
|
e018e6884bd8
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|
1550 "Percentage (0-100) used to weight the current sample when" \ |
|
e018e6884bd8
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|
1551 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
|
e018e6884bd8
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|
1552 \ |
|
e018e6884bd8
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|
1553 product(bool, ResizeOldPLAB, true, \ |
|
e018e6884bd8
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|
1554 "Dynamically resize (old gen) promotion labs") \ |
|
e018e6884bd8
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|
1555 \ |
|
e018e6884bd8
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|
1556 product(bool, PrintOldPLAB, false, \ |
|
e018e6884bd8
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|
1557 "Print (old gen) promotion labs sizing decisions") \ |
|
e018e6884bd8
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|
1558 \ |
|
e018e6884bd8
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|
1559 product(uintx, CMSOldPLABMin, 16, \ |
|
e018e6884bd8
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changeset
|
1560 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
|
e018e6884bd8
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|
1561 \ |
|
e018e6884bd8
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changeset
|
1562 product(uintx, CMSOldPLABMax, 1024, \ |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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changeset
|
1563 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
|
e018e6884bd8
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|
1564 \ |
|
e018e6884bd8
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|
1565 product(uintx, CMSOldPLABNumRefills, 4, \ |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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changeset
|
1566 "Nominal number of refills of CMS gen promotion lab cache" \ |
|
e018e6884bd8
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|
1567 " per worker per block size") \ |
|
e018e6884bd8
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diff
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|
1568 \ |
|
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|
1569 product(bool, CMSOldPLABResizeQuicker, false, \ |
|
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changeset
|
1570 "Whether to react on-the-fly during a scavenge to a sudden" \ |
|
e018e6884bd8
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diff
changeset
|
1571 " change in block demand rate") \ |
|
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|
1572 \ |
|
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|
1573 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
|
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changeset
|
1574 "The tolerance of the phase-change detector for on-the-fly" \ |
|
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|
1575 " PLAB resizing during a scavenge") \ |
|
e018e6884bd8
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|
1576 \ |
|
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|
1577 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
|
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changeset
|
1578 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
|
e018e6884bd8
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|
1579 " during a scavenge") \ |
|
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|
1580 \ |
| 0 | 1581 product(bool, AlwaysPreTouch, false, \ |
| 1582 "It forces all freshly committed pages to be pre-touched.") \ | |
| 1583 \ | |
|
10287
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|
1584 product_pd(uintx, CMSYoungGenPerWorker, \ |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
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|
1585 "The maximum size of young gen chosen by default per GC worker " \ |
| 1064 | 1586 "thread available") \ |
| 0 | 1587 \ |
| 1588 product(bool, CMSIncrementalMode, false, \ | |
| 1589 "Whether CMS GC should operate in \"incremental\" mode") \ | |
| 1590 \ | |
| 1591 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
| 1592 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
| 1593 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
| 1594 "value") \ | |
| 1595 \ | |
| 1596 product(bool, CMSIncrementalPacing, true, \ | |
| 1597 "Whether the CMS incremental mode duty cycle should be " \ | |
| 1598 "automatically adjusted") \ | |
| 1599 \ | |
| 1600 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
| 1064 | 1601 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
| 1602 "enabled (a percentage, 0-100)") \ | |
| 0 | 1603 \ |
| 1604 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
| 1064 | 1605 "Percentage (0-100) used to add conservatism when computing the " \ |
| 1606 "duty cycle") \ | |
| 0 | 1607 \ |
| 1608 product(uintx, CMSIncrementalOffset, 0, \ | |
| 1609 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
| 1064 | 1610 " is shifted to the right within the period between young GCs") \ |
| 0 | 1611 \ |
|
1145
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|
1612 product(uintx, CMSExpAvgFactor, 50, \ |
|
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|
1613 "Percentage (0-100) used to weight the current sample when" \ |
|
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|
1614 "computing exponential averages for CMS statistics.") \ |
|
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|
1615 \ |
|
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|
1616 product(uintx, CMS_FLSWeight, 75, \ |
|
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|
1617 "Percentage (0-100) used to weight the current sample when" \ |
|
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|
1618 "computing exponentially decating averages for CMS FLS statistics.") \ |
|
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|
1619 \ |
|
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|
1620 product(uintx, CMS_FLSPadding, 1, \ |
|
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|
1621 "The multiple of deviation from mean to use for buffering" \ |
| 0 | 1622 "against volatility in free list demand.") \ |
| 1623 \ | |
| 1624 product(uintx, FLSCoalescePolicy, 2, \ | |
| 1625 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
| 1626 \ | |
|
1145
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|
1627 product(bool, FLSAlwaysCoalesceLarge, false, \ |
|
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|
1628 "CMS: Larger free blocks are always available for coalescing") \ |
|
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|
1629 \ |
|
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1630 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
|
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1631 "CMS: the smaller the percentage the greater the coalition force")\ |
|
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|
1632 \ |
|
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1633 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
|
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1634 "CMS: the factor by which to inflate estimated demand of small" \ |
|
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1635 " block sizes to prevent coalescing with an adjoining block") \ |
|
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|
1636 \ |
|
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|
1637 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
|
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1638 "CMS: the factor by which to inflate estimated demand of large" \ |
|
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|
1639 " block sizes to prevent coalescing with an adjoining block") \ |
|
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|
1640 \ |
|
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1641 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
|
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1642 "CMS: the factor by which to inflate estimated demand of small" \ |
|
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|
1643 " block sizes to prevent splitting to supply demand for smaller" \ |
|
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|
1644 " blocks") \ |
|
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|
1645 \ |
|
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1646 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
|
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1647 "CMS: the factor by which to inflate estimated demand of large" \ |
|
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1648 " block sizes to prevent splitting to supply demand for smaller" \ |
|
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|
1649 " blocks") \ |
|
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|
1650 \ |
|
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|
1651 product(bool, CMSExtrapolateSweep, false, \ |
|
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1652 "CMS: cushion for block demand during sweep") \ |
|
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1653 \ |
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1654 product(uintx, CMS_SweepWeight, 75, \ |
| 1064 | 1655 "Percentage (0-100) used to weight the current sample when " \ |
| 1656 "computing exponentially decaying average for inter-sweep " \ | |
| 1657 "duration") \ | |
| 0 | 1658 \ |
|
1145
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1659 product(uintx, CMS_SweepPadding, 1, \ |
| 1064 | 1660 "The multiple of deviation from mean to use for buffering " \ |
| 0 | 1661 "against volatility in inter-sweep duration.") \ |
| 1662 \ | |
| 1663 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
| 1664 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
| 1064 | 1665 "duration exceeds this threhold in milliseconds") \ |
| 0 | 1666 \ |
| 1667 develop(bool, CMSTraceIncrementalMode, false, \ | |
| 1668 "Trace CMS incremental mode") \ | |
| 1669 \ | |
| 1670 develop(bool, CMSTraceIncrementalPacing, false, \ | |
| 1671 "Trace CMS incremental mode pacing computation") \ | |
| 1672 \ | |
| 1673 develop(bool, CMSTraceThreadState, false, \ | |
| 1674 "Trace the CMS thread state (enable the trace_state() method)") \ | |
| 1675 \ | |
|
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1676 product(bool, CMSClassUnloadingEnabled, true, \ |
| 0 | 1677 "Whether class unloading enabled when using CMS GC") \ |
| 1678 \ | |
|
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1679 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
|
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|
1680 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
|
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|
1681 " for which classes may not be unloaded") \ |
|
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|
1682 \ |
| 0 | 1683 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
| 1684 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
| 1685 \ | |
| 1686 product(bool, UseCMSCompactAtFullCollection, true, \ | |
| 1687 "Use mark sweep compact at full collections") \ | |
| 1688 \ | |
| 1689 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
| 1690 "Number of CMS full collection done before compaction if > 0") \ | |
| 1691 \ | |
| 1692 develop(intx, CMSDictionaryChoice, 0, \ | |
| 1693 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
| 1694 \ | |
| 1695 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
| 6818 | 1696 "Replenish an indexed free list with this number of chunks") \ |
| 0 | 1697 \ |
|
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1698 product(bool, CMSReplenishIntermediate, true, \ |
|
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1699 "Replenish all intermediate free-list caches") \ |
|
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|
1700 \ |
|
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1701 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
|
1777
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1702 "When satisfying batched demand, split blocks from the " \ |
|
1145
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1703 "IndexedFreeList whose size is a multiple of requested size") \ |
|
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|
1704 \ |
| 0 | 1705 product(bool, CMSLoopWarn, false, \ |
| 1706 "Warn in case of excessive CMS looping") \ | |
| 1707 \ | |
| 1708 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
| 1709 "Whether preserved marks should be restored early") \ | |
| 1710 \ | |
| 1284 | 1711 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
| 1712 "Size of marking stack") \ | |
| 1713 \ | |
| 1714 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
| 1715 "Max size of marking stack") \ | |
| 0 | 1716 \ |
| 1717 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
| 1718 "Whether we should simulate frequent marking stack / work queue" \ | |
| 1719 " overflow") \ | |
| 1720 \ | |
| 534 | 1721 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
| 1722 "An `interval' counter that determines how frequently" \ | |
| 0 | 1723 " we simulate overflow; a smaller number increases frequency") \ |
| 1724 \ | |
| 1725 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
| 1726 "(Temporary, subject to experimentation)" \ | |
| 1727 "Maximum number of abortable preclean iterations, if > 0") \ | |
| 1728 \ | |
| 1729 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
| 1730 "(Temporary, subject to experimentation)" \ | |
| 1731 "Maximum time in abortable preclean in ms") \ | |
| 1732 \ | |
| 1733 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
| 1734 "(Temporary, subject to experimentation)" \ | |
| 1735 "Nominal minimum work per abortable preclean iteration") \ | |
| 1736 \ | |
|
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1737 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
| 0 | 1738 "(Temporary, subject to experimentation)" \ |
| 1739 " Time that we sleep between iterations when not given" \ | |
| 1740 " enough work per iteration") \ | |
| 1741 \ | |
| 1742 product(uintx, CMSRescanMultiple, 32, \ | |
| 1743 "Size (in cards) of CMS parallel rescan task") \ | |
| 1744 \ | |
| 1745 product(uintx, CMSConcMarkMultiple, 32, \ | |
| 1746 "Size (in cards) of CMS concurrent MT marking task") \ | |
| 1747 \ | |
| 1748 product(bool, CMSAbortSemantics, false, \ | |
| 1749 "Whether abort-on-overflow semantics is implemented") \ | |
| 1750 \ | |
| 11975 | 1751 product(bool, CMSParallelInitialMarkEnabled, true, \ |
| 1752 "Use the parallel initial mark.") \ | |
| 1753 \ | |
| 0 | 1754 product(bool, CMSParallelRemarkEnabled, true, \ |
| 1755 "Whether parallel remark enabled (only if ParNewGC)") \ | |
| 1756 \ | |
| 1757 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
| 1758 "Whether parallel remark of survivor space" \ | |
| 1759 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
| 1760 \ | |
| 1761 product(bool, CMSPLABRecordAlways, true, \ | |
| 1762 "Whether to always record survivor space PLAB bdries" \ | |
| 1763 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
| 1764 \ | |
|
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1765 product(bool, CMSEdenChunksRecordAlways, true, \ |
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|
1766 "Whether to always record eden chunks used for " \ |
|
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|
1767 "the parallel initial mark or remark of eden" ) \ |
|
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|
1768 \ |
|
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1769 product(bool, CMSPrintEdenSurvivorChunks, false, \ |
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|
1770 "Print the eden and the survivor chunks used for the parallel " \ |
|
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1771 "initial mark or remark of the eden/survivor spaces") \ |
|
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1772 \ |
| 0 | 1773 product(bool, CMSConcurrentMTEnabled, true, \ |
| 1774 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
| 1775 \ | |
| 1776 product(bool, CMSPrecleaningEnabled, true, \ | |
| 1777 "Whether concurrent precleaning enabled") \ | |
| 1778 \ | |
| 1779 product(uintx, CMSPrecleanIter, 3, \ | |
| 1780 "Maximum number of precleaning iteration passes") \ | |
| 1781 \ | |
| 1782 product(uintx, CMSPrecleanNumerator, 2, \ | |
| 1783 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
| 1784 " ratio") \ | |
| 1785 \ | |
| 1786 product(uintx, CMSPrecleanDenominator, 3, \ | |
| 1787 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
| 1788 " ratio") \ | |
| 1789 \ | |
|
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1790 product(bool, CMSPrecleanRefLists1, true, \ |
| 0 | 1791 "Preclean ref lists during (initial) preclean phase") \ |
| 1792 \ | |
| 1793 product(bool, CMSPrecleanRefLists2, false, \ | |
| 1794 "Preclean ref lists during abortable preclean phase") \ | |
| 1795 \ | |
| 1796 product(bool, CMSPrecleanSurvivors1, false, \ | |
| 1797 "Preclean survivors during (initial) preclean phase") \ | |
| 1798 \ | |
| 1799 product(bool, CMSPrecleanSurvivors2, true, \ | |
| 1800 "Preclean survivors during abortable preclean phase") \ | |
| 1801 \ | |
| 1802 product(uintx, CMSPrecleanThreshold, 1000, \ | |
| 1803 "Don't re-iterate if #dirty cards less than this") \ | |
| 1804 \ | |
| 1805 product(bool, CMSCleanOnEnter, true, \ | |
| 1806 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
| 1807 \ | |
| 1808 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
| 1809 "Choose variant (1,2) of verification following remark") \ | |
| 1810 \ | |
| 1811 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
| 1812 "If Eden used is below this value, don't try to schedule remark") \ | |
| 1813 \ | |
| 1814 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
| 1815 "The Eden occupancy % at which to try and schedule remark pause") \ | |
| 1816 \ | |
| 1817 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
| 1818 "Start sampling Eden top at least before yg occupancy reaches" \ | |
| 1819 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
| 1820 \ | |
| 1821 product(uintx, CMSSamplingGrain, 16*K, \ | |
| 1822 "The minimum distance between eden samples for CMS (see above)") \ | |
| 1823 \ | |
| 1824 product(bool, CMSScavengeBeforeRemark, false, \ | |
| 1825 "Attempt scavenge before the CMS remark step") \ | |
| 1826 \ | |
| 1827 develop(bool, CMSTraceSweeper, false, \ | |
| 1828 "Trace some actions of the CMS sweeper") \ | |
| 1829 \ | |
| 1830 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
| 1831 "Don't drain below this size per parallel worker/thief") \ | |
| 1832 \ | |
|
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1833 manageable(intx, CMSWaitDuration, 2000, \ |
| 0 | 1834 "Time in milliseconds that CMS thread waits for young GC") \ |
| 1835 \ | |
|
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1836 develop(uintx, CMSCheckInterval, 1000, \ |
|
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1837 "Interval in milliseconds that CMS thread checks if it " \ |
|
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1838 "should start a collection cycle") \ |
|
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1839 \ |
| 0 | 1840 product(bool, CMSYield, true, \ |
| 1841 "Yield between steps of concurrent mark & sweep") \ | |
| 1842 \ | |
| 1843 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
| 1844 "Bitmap operations should process at most this many bits" \ | |
| 1845 "between yields") \ | |
| 1846 \ | |
|
1145
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1847 product(bool, CMSDumpAtPromotionFailure, false, \ |
|
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1848 "Dump useful information about the state of the CMS old " \ |
|
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|
1849 " generation upon a promotion failure.") \ |
|
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|
1850 \ |
|
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1851 product(bool, CMSPrintChunksInDump, false, \ |
|
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1852 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
|
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1853 " more detailed information about the free chunks.") \ |
|
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|
1854 \ |
|
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1855 product(bool, CMSPrintObjectsInDump, false, \ |
|
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1856 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
|
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1857 " more detailed information about the allocated objects.") \ |
|
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1858 \ |
| 0 | 1859 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
| 1860 "Verify that all refs across the FLS boundary " \ | |
| 1861 " are to valid objects") \ | |
| 1862 \ | |
| 1863 diagnostic(bool, FLSVerifyLists, false, \ | |
| 1864 "Do lots of (expensive) FreeListSpace verification") \ | |
| 1865 \ | |
| 1866 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
| 1867 "Do lots of (expensive) FLS index table verification") \ | |
| 1868 \ | |
| 1869 develop(bool, FLSVerifyDictionary, false, \ | |
| 1870 "Do lots of (expensive) FLS dictionary verification") \ | |
| 1871 \ | |
| 1872 develop(bool, VerifyBlockOffsetArray, false, \ | |
| 1873 "Do (expensive!) block offset array verification") \ | |
| 1874 \ | |
|
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1875 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
| 0 | 1876 "Maintain _unallocated_block in BlockOffsetArray" \ |
| 1877 " (currently applicable only to CMS collector)") \ | |
| 1878 \ | |
| 1879 develop(bool, TraceCMSState, false, \ | |
| 1880 "Trace the state of the CMS collection") \ | |
| 1881 \ | |
| 1882 product(intx, RefDiscoveryPolicy, 0, \ | |
| 1883 "Whether reference-based(0) or referent-based(1)") \ | |
| 1884 \ | |
| 1885 product(bool, ParallelRefProcEnabled, false, \ | |
| 1886 "Enable parallel reference processing whenever possible") \ | |
| 1887 \ | |
| 1888 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
| 1889 "Enable balancing of reference processing queues") \ | |
| 1890 \ | |
| 8035 | 1891 product(uintx, CMSTriggerRatio, 80, \ |
| 0 | 1892 "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
| 1064 | 1893 "allocated before a CMS collection cycle commences") \ |
| 0 | 1894 \ |
|
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1895 product(uintx, CMSBootstrapOccupancy, 50, \ |
| 0 | 1896 "Percentage CMS generation occupancy at which to " \ |
| 1064 | 1897 "initiate CMS collection for bootstrapping collection stats") \ |
| 0 | 1898 \ |
| 1899 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
| 1900 "Percentage CMS generation occupancy to start a CMS collection " \ | |
| 1064 | 1901 "cycle. A negative value means that CMSTriggerRatio is used") \ |
|
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1902 \ |
|
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1903 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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1904 "Percentage of the (entire) heap occupancy to start a " \ |
|
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1905 "concurrent GC cycle. It is used by GCs that trigger a " \ |
|
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1906 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1907 "not just one of the generations (e.g., G1). A value of 0 " \ |
|
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1908 "denotes 'do constant GC cycles'.") \ |
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1909 \ |
| 0 | 1910 product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
| 1911 "Only use occupancy as a crierion for starting a CMS collection") \ | |
| 1912 \ | |
|
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1913 product(uintx, CMSIsTooFullPercentage, 98, \ |
| 1064 | 1914 "An absolute ceiling above which CMS will always consider the " \ |
|
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1915 "unloading of classes when class unloading is enabled") \ |
|
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1916 \ |
| 0 | 1917 develop(bool, CMSTestInFreeList, false, \ |
| 1918 "Check if the coalesced range is already in the " \ | |
| 1064 | 1919 "free lists as claimed") \ |
| 0 | 1920 \ |
| 1921 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
| 1922 "Check that all the garbage collected was returned to the " \ | |
| 1923 "free lists.") \ | |
| 1924 \ | |
| 1925 notproduct(bool, ScavengeALot, false, \ | |
| 1926 "Force scavenge at every Nth exit from the runtime system " \ | |
| 1927 "(N=ScavengeALotInterval)") \ | |
| 1928 \ | |
| 1929 develop(bool, FullGCALot, false, \ | |
| 1930 "Force full gc at every Nth exit from the runtime system " \ | |
| 1931 "(N=FullGCALotInterval)") \ | |
| 1932 \ | |
| 1933 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
| 1934 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
| 1935 \ | |
|
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1936 product(bool, PrintPromotionFailure, false, \ |
|
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1937 "Print additional diagnostic information following " \ |
|
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|
1938 " promotion failure") \ |
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1939 \ |
| 0 | 1940 notproduct(bool, PromotionFailureALot, false, \ |
| 1941 "Use promotion failure handling on every youngest generation " \ | |
| 1942 "collection") \ | |
| 1943 \ | |
| 1944 develop(uintx, PromotionFailureALotCount, 1000, \ | |
| 1945 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
| 1946 "refill attempts (ParNew) or promotion attempts " \ | |
| 1947 "(other young collectors) ") \ | |
| 1948 \ | |
| 1949 develop(uintx, PromotionFailureALotInterval, 5, \ | |
| 1950 "Total collections between promotion failures alot") \ | |
| 1951 \ | |
|
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1952 experimental(uintx, WorkStealingSleepMillis, 1, \ |
| 0 | 1953 "Sleep time when sleep is used for yields") \ |
| 1954 \ | |
| 2430 | 1955 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
| 0 | 1956 "Number of yields before a sleep is done during workstealing") \ |
| 1957 \ | |
|
1837
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1958 experimental(uintx, WorkStealingHardSpins, 4096, \ |
|
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1959 "Number of iterations in a spin loop between checks on " \ |
|
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1960 "time out of hard spin") \ |
|
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1961 \ |
|
1837
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1962 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
|
546
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|
1963 "Ratio of hard spins to calls to yield") \ |
|
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|
1964 \ |
|
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1965 develop(uintx, ObjArrayMarkingStride, 512, \ |
|
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1966 "Number of ObjArray elements to push onto the marking stack" \ |
|
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|
1967 "before pushing a continuation entry") \ |
|
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|
1968 \ |
|
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1969 develop(bool, MetadataAllocationFailALot, false, \ |
|
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1970 "Fail metadata allocations at intervals controlled by " \ |
|
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1971 "MetadataAllocationFailALotInterval") \ |
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1972 \ |
|
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1973 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ |
|
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1974 "metadata allocation failure alot interval") \ |
|
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1975 \ |
|
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1976 develop(bool, MetaDataDeallocateALot, false, \ |
|
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1977 "Deallocation bunches of metadata at intervals controlled by " \ |
|
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1978 "MetaDataAllocateALotInterval") \ |
|
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1979 \ |
|
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1980 develop(uintx, MetaDataDeallocateALotInterval, 100, \ |
|
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1981 "Metadata deallocation alot interval") \ |
|
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1982 \ |
|
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1983 develop(bool, TraceMetadataChunkAllocation, false, \ |
|
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1984 "Trace chunk metadata allocations") \ |
|
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1985 \ |
|
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1986 product(bool, TraceMetadataHumongousAllocation, false, \ |
|
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1987 "Trace humongous metadata allocations") \ |
|
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1988 \ |
|
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|
1989 develop(bool, TraceMetavirtualspaceAllocation, false, \ |
|
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1990 "Trace virtual space metadata allocations") \ |
|
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|
1991 \ |
| 3779 | 1992 notproduct(bool, ExecuteInternalVMTests, false, \ |
| 1993 "Enable execution of internal VM tests.") \ | |
| 1994 \ | |
|
12110
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|
1995 notproduct(bool, VerboseInternalVMTests, false, \ |
|
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|
1996 "Turn on logging for internal VM tests.") \ |
|
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|
1997 \ |
| 0 | 1998 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
| 1999 \ | |
| 2000 product_pd(bool, ResizeTLAB, \ | |
| 2001 "Dynamically resize tlab size for threads") \ | |
| 2002 \ | |
| 2003 product(bool, ZeroTLAB, false, \ | |
| 2004 "Zero out the newly created TLAB") \ | |
| 2005 \ | |
|
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|
2006 product(bool, FastTLABRefill, true, \ |
|
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|
2007 "Use fast TLAB refill code") \ |
|
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|
2008 \ |
| 0 | 2009 product(bool, PrintTLAB, false, \ |
| 2010 "Print various TLAB related information") \ | |
| 2011 \ | |
| 2012 product(bool, TLABStats, true, \ | |
| 2013 "Print various TLAB related information") \ | |
| 2014 \ | |
|
2192
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|
2015 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
|
b92c45f2bc75
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|
2016 "Enable LowMemoryProtection")) \ |
|
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|
2017 \ |
| 0 | 2018 product_pd(bool, NeverActAsServerClassMachine, \ |
| 2019 "Never act like a server-class machine") \ | |
| 2020 \ | |
| 2021 product(bool, AlwaysActAsServerClassMachine, false, \ | |
| 2022 "Always act like a server-class machine") \ | |
| 2023 \ | |
| 1064 | 2024 product_pd(uint64_t, MaxRAM, \ |
| 2025 "Real memory size (in bytes) used to set maximum heap size") \ | |
| 2026 \ | |
| 2027 product(uintx, ErgoHeapSizeLimit, 0, \ | |
| 2028 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
| 2029 "MaxRAM / MaxRAMFraction") \ | |
| 2030 \ | |
| 2031 product(uintx, MaxRAMFraction, 4, \ | |
| 2032 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
| 2033 "size") \ | |
| 0 | 2034 \ |
| 2035 product(uintx, DefaultMaxRAMFraction, 4, \ | |
| 1064 | 2036 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
| 2037 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
| 2038 \ | |
| 2039 product(uintx, MinRAMFraction, 2, \ | |
| 2040 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
| 2041 "size on systems with small physical memory size") \ | |
| 2042 \ | |
| 2043 product(uintx, InitialRAMFraction, 64, \ | |
| 2044 "Fraction (1/n) of real memory used for initial heap size") \ | |
| 0 | 2045 \ |
|
8854
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2046 develop(uintx, MaxVirtMemFraction, 2, \ |
|
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|
2047 "Maximum fraction (1/n) of virtual memory used for ergonomically" \ |
|
754c24457b20
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|
2048 "determining maximum heap size") \ |
|
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|
2049 \ |
| 0 | 2050 product(bool, UseAutoGCSelectPolicy, false, \ |
| 2051 "Use automatic collection selection policy") \ | |
| 2052 \ | |
| 2053 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
| 2054 "Automatic GC selection pause threshhold in ms") \ | |
| 2055 \ | |
| 2056 product(bool, UseAdaptiveSizePolicy, true, \ | |
| 2057 "Use adaptive generation sizing policies") \ | |
| 2058 \ | |
| 2059 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
| 2060 "Use adaptive survivor sizing policies") \ | |
| 2061 \ | |
| 2062 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
| 2063 "Use adaptive young-old sizing policies at minor collections") \ | |
| 2064 \ | |
| 2065 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
| 2066 "Use adaptive young-old sizing policies at major collections") \ | |
| 2067 \ | |
| 2068 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
| 2069 "Use statistics from System.GC for adaptive size policy") \ | |
| 2070 \ | |
| 2071 product(bool, UseAdaptiveGCBoundary, false, \ | |
| 2072 "Allow young-old boundary to move") \ | |
| 2073 \ | |
| 2074 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
| 2075 "Trace young-old boundary moves") \ | |
| 2076 \ | |
| 2077 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
| 2078 "Resize the virtual spaces of the young or old generations") \ | |
| 2079 \ | |
| 2080 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
| 2081 "Policy for changeing generation size for throughput goals") \ | |
| 2082 \ | |
| 2083 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
| 2084 "Policy for changing generation size for pause goals") \ | |
| 2085 \ | |
| 2086 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
| 2087 "Adjust tenured generation to achive a minor pause goal") \ | |
| 2088 \ | |
| 2089 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
| 2090 "Adjust young generation to achive a major pause goal") \ | |
| 2091 \ | |
| 2092 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
| 2093 "Number of steps where heuristics is used before data is used") \ | |
| 2094 \ | |
| 2095 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
| 2096 "Number of collections before the adaptive sizing is started") \ | |
| 2097 \ | |
| 2098 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
|
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2099 "Collection interval for printing information; zero means never") \ |
| 0 | 2100 \ |
| 2101 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
| 2102 "Use adaptive minimum footprint as a goal") \ | |
| 2103 \ | |
| 2104 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
| 2105 "Weight given to exponential resizing, between 0 and 100") \ | |
| 2106 \ | |
| 2107 product(uintx, AdaptiveTimeWeight, 25, \ | |
| 2108 "Weight given to time in adaptive policy, between 0 and 100") \ | |
| 2109 \ | |
| 2110 product(uintx, PausePadding, 1, \ | |
| 2111 "How much buffer to keep for pause time") \ | |
| 2112 \ | |
| 2113 product(uintx, PromotedPadding, 3, \ | |
| 2114 "How much buffer to keep for promotion failure") \ | |
| 2115 \ | |
| 2116 product(uintx, SurvivorPadding, 3, \ | |
| 2117 "How much buffer to keep for survivor overflow") \ | |
| 2118 \ | |
| 2119 product(uintx, ThresholdTolerance, 10, \ | |
| 2120 "Allowed collection cost difference between generations") \ | |
| 2121 \ | |
| 2122 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
| 1064 | 2123 "If collection costs are within margin, reduce both by full " \ |
| 2124 "delta") \ | |
| 0 | 2125 \ |
| 2126 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
| 2127 "Adaptive size percentage change in young generation") \ | |
| 2128 \ | |
| 2129 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
| 2130 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
| 2131 \ | |
| 2132 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
| 2133 "Decay factor to YoungedGenerationSizeSupplement") \ | |
| 2134 \ | |
| 2135 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
| 2136 "Adaptive size percentage change in tenured generation") \ | |
| 2137 \ | |
| 2138 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
| 2139 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
| 2140 \ | |
| 2141 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
| 2142 "Decay factor to TenuredGenerationSizeIncrement") \ | |
| 2143 \ | |
| 6818 | 2144 product(uintx, MaxGCPauseMillis, max_uintx, \ |
| 751 | 2145 "Adaptive size policy maximum GC pause time goal in msec, " \ |
| 2146 "or (G1 Only) the max. GC time per MMU time slice") \ | |
| 2147 \ | |
|
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|
2148 product(uintx, GCPauseIntervalMillis, 0, \ |
| 751 | 2149 "Time slice for MMU specification") \ |
| 0 | 2150 \ |
| 2151 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
| 2152 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
| 2153 \ | |
| 2154 product(uintx, GCTimeRatio, 99, \ | |
| 2155 "Adaptive size policy application time to GC time ratio") \ | |
| 2156 \ | |
| 2157 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
| 2158 "Adaptive size scale down factor for shrinking") \ | |
| 2159 \ | |
| 2160 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
| 2161 "Adaptive size decays the major cost for long major intervals") \ | |
| 2162 \ | |
| 2163 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
| 2164 "Time scale over which major costs decay") \ | |
| 2165 \ | |
| 2166 product(uintx, MinSurvivorRatio, 3, \ | |
| 2167 "Minimum ratio of young generation/survivor space size") \ | |
| 2168 \ | |
| 2169 product(uintx, InitialSurvivorRatio, 8, \ | |
| 2170 "Initial ratio of eden/survivor space size") \ | |
| 2171 \ | |
| 2172 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
| 2173 "Estimate of footprint other than Java Heap") \ | |
| 2174 \ | |
| 2175 product(bool, UseGCOverheadLimit, true, \ | |
| 2176 "Use policy to limit of proportion of time spent in GC " \ | |
| 2177 "before an OutOfMemory error is thrown") \ | |
| 2178 \ | |
| 2179 product(uintx, GCTimeLimit, 98, \ | |
| 2180 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
| 2181 "error is thrown (used with GCHeapFreeLimit)") \ | |
| 2182 \ | |
| 2183 product(uintx, GCHeapFreeLimit, 2, \ | |
| 2184 "Minimum percentage of free space after a full GC before an " \ | |
| 2185 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
| 2186 \ | |
| 2187 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
| 2188 "Number of consecutive collections before gc time limit fires") \ | |
| 2189 \ | |
| 2190 product(bool, PrintAdaptiveSizePolicy, false, \ | |
| 2191 "Print information about AdaptiveSizePolicy") \ | |
| 2192 \ | |
| 2193 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
| 2194 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
| 2195 \ | |
| 2196 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
| 2197 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
| 2198 \ | |
| 2199 product(intx, PrefetchFieldsAhead, -1, \ | |
| 2200 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
| 2201 \ | |
|
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|
2202 diagnostic(bool, VerifySilently, false, \ |
|
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|
2203 "Don't print print the verification progress") \ |
|
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|
2204 \ |
|
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|
2205 diagnostic(bool, VerifyDuringStartup, false, \ |
|
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|
2206 "Verify memory system before executing any Java code " \ |
|
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|
2207 "during VM initialization") \ |
|
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|
2208 \ |
| 0 | 2209 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
| 2210 "Verify system before exiting") \ | |
| 2211 \ | |
| 2212 diagnostic(bool, VerifyBeforeGC, false, \ | |
| 2213 "Verify memory system before GC") \ | |
| 2214 \ | |
| 2215 diagnostic(bool, VerifyAfterGC, false, \ | |
| 2216 "Verify memory system after GC") \ | |
| 2217 \ | |
| 2218 diagnostic(bool, VerifyDuringGC, false, \ | |
| 2219 "Verify memory system during GC (between phases)") \ | |
| 2220 \ | |
| 390 | 2221 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
| 2222 "Enable parallel memory system verification") \ | |
| 2223 \ | |
| 1166 | 2224 diagnostic(bool, DeferInitialCardMark, false, \ |
| 2225 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
| 2226 "may arise from new_pre_store_barrier") \ | |
| 2227 \ | |
| 0 | 2228 diagnostic(bool, VerifyRememberedSets, false, \ |
| 2229 "Verify GC remembered sets") \ | |
| 2230 \ | |
| 2231 diagnostic(bool, VerifyObjectStartArray, true, \ | |
| 2232 "Verify GC object start array if verify before/after") \ | |
| 2233 \ | |
| 2234 product(bool, DisableExplicitGC, false, \ | |
| 2235 "Tells whether calling System.gc() does a full GC") \ | |
| 2236 \ | |
| 2237 notproduct(bool, CheckMemoryInitialization, false, \ | |
| 2238 "Checks memory initialization") \ | |
| 2239 \ | |
| 2240 product(bool, CollectGen0First, false, \ | |
| 2241 "Collect youngest generation before each full GC") \ | |
| 2242 \ | |
| 2243 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
| 2244 "Bind CMS Thread to CPU if possible") \ | |
| 2245 \ | |
| 2246 diagnostic(uintx, CPUForCMSThread, 0, \ | |
| 2247 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
| 2248 \ | |
| 2249 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
| 2250 "Bind GCTaskThreads to CPUs if possible") \ | |
| 2251 \ | |
| 2252 product(bool, UseGCTaskAffinity, false, \ | |
| 2253 "Use worker affinity when asking for GCTasks") \ | |
| 2254 \ | |
| 2255 product(uintx, ProcessDistributionStride, 4, \ | |
| 2256 "Stride through processors when distributing processes") \ | |
| 2257 \ | |
| 2258 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
| 2259 "number of times the coordinator GC thread will sleep while " \ | |
| 2260 "yielding before giving up and resuming GC") \ | |
| 2261 \ | |
| 2262 product(uintx, CMSYieldSleepCount, 0, \ | |
| 2263 "number of times a GC thread (minus the coordinator) " \ | |
| 2264 "will sleep while yielding before giving up and resuming GC") \ | |
| 2265 \ | |
| 2266 /* gc tracing */ \ | |
| 2267 manageable(bool, PrintGC, false, \ | |
| 2268 "Print message at garbage collect") \ | |
| 2269 \ | |
| 2270 manageable(bool, PrintGCDetails, false, \ | |
| 2271 "Print more details at garbage collect") \ | |
| 2272 \ | |
| 2273 manageable(bool, PrintGCDateStamps, false, \ | |
| 2274 "Print date stamps at garbage collect") \ | |
| 2275 \ | |
| 2276 manageable(bool, PrintGCTimeStamps, false, \ | |
| 2277 "Print timestamps at garbage collect") \ | |
| 2278 \ | |
| 2279 product(bool, PrintGCTaskTimeStamps, false, \ | |
| 2280 "Print timestamps for individual gc worker thread tasks") \ | |
| 2281 \ | |
| 2282 develop(intx, ConcGCYieldTimeout, 0, \ | |
| 2283 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
| 2284 \ | |
| 2285 notproduct(bool, TraceMarkSweep, false, \ | |
| 2286 "Trace mark sweep") \ | |
| 2287 \ | |
| 2288 product(bool, PrintReferenceGC, false, \ | |
| 2289 "Print times spent handling reference objects during GC " \ | |
| 2290 " (enabled only when PrintGCDetails)") \ | |
| 2291 \ | |
| 2292 develop(bool, TraceReferenceGC, false, \ | |
| 2293 "Trace handling of soft/weak/final/phantom references") \ | |
| 2294 \ | |
| 2295 develop(bool, TraceFinalizerRegistration, false, \ | |
| 2296 "Trace registration of final references") \ | |
| 2297 \ | |
| 2298 notproduct(bool, TraceScavenge, false, \ | |
| 2299 "Trace scavenge") \ | |
| 2300 \ | |
| 2301 product_rw(bool, TraceClassLoading, false, \ | |
| 2302 "Trace all classes loaded") \ | |
| 2303 \ | |
| 2304 product(bool, TraceClassLoadingPreorder, false, \ | |
| 2305 "Trace all classes loaded in order referenced (not loaded)") \ | |
| 2306 \ | |
| 2307 product_rw(bool, TraceClassUnloading, false, \ | |
| 2308 "Trace unloading of classes") \ | |
| 2309 \ | |
| 2310 product_rw(bool, TraceLoaderConstraints, false, \ | |
| 2311 "Trace loader constraints") \ | |
| 2312 \ | |
|
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2313 develop(bool, TraceClassLoaderData, false, \ |
|
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|
2314 "Trace class loader loader_data lifetime") \ |
|
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|
2315 \ |
|
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|
2316 product(uintx, InitialBootClassLoaderMetaspaceSize, \ |
|
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|
2317 NOT_LP64(2200*K) LP64_ONLY(4*M), \ |
|
6725
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|
2318 "Initial size of the boot class loader data metaspace") \ |
|
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|
2319 \ |
| 0 | 2320 product(bool, TraceGen0Time, false, \ |
| 2321 "Trace accumulated time for Gen 0 collection") \ | |
| 2322 \ | |
| 2323 product(bool, TraceGen1Time, false, \ | |
| 2324 "Trace accumulated time for Gen 1 collection") \ | |
| 2325 \ | |
| 2326 product(bool, PrintTenuringDistribution, false, \ | |
| 2327 "Print tenuring age information") \ | |
| 2328 \ | |
| 2329 product_rw(bool, PrintHeapAtGC, false, \ | |
| 2330 "Print heap layout before and after each GC") \ | |
| 2331 \ | |
|
838
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|
2332 product_rw(bool, PrintHeapAtGCExtended, false, \ |
|
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|
2333 "Prints extended information about the layout of the heap " \ |
|
0316eac49d5a
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|
2334 "when -XX:+PrintHeapAtGC is set") \ |
|
0316eac49d5a
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|
2335 \ |
| 0 | 2336 product(bool, PrintHeapAtSIGBREAK, true, \ |
| 2337 "Print heap layout in response to SIGBREAK") \ | |
| 2338 \ | |
|
615
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|
2339 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
|
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|
2340 "Print a class histogram before any major stop-world GC") \ |
|
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|
2341 \ |
|
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|
2342 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
|
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|
2343 "Print a class histogram after any major stop-world GC") \ |
|
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|
2344 \ |
| 0 | 2345 manageable(bool, PrintClassHistogram, false, \ |
| 2346 "Print a histogram of class instances") \ | |
| 2347 \ | |
| 2348 develop(bool, TraceWorkGang, false, \ | |
| 2349 "Trace activities of work gangs") \ | |
| 2350 \ | |
| 2351 product(bool, TraceParallelOldGCTasks, false, \ | |
| 2352 "Trace multithreaded GC activity") \ | |
| 2353 \ | |
| 2354 develop(bool, TraceBlockOffsetTable, false, \ | |
| 2355 "Print BlockOffsetTable maps") \ | |
| 2356 \ | |
| 2357 develop(bool, TraceCardTableModRefBS, false, \ | |
| 2358 "Print CardTableModRefBS maps") \ | |
| 2359 \ | |
| 2360 develop(bool, TraceGCTaskManager, false, \ | |
| 2361 "Trace actions of the GC task manager") \ | |
| 2362 \ | |
| 2363 develop(bool, TraceGCTaskQueue, false, \ | |
| 2364 "Trace actions of the GC task queues") \ | |
| 2365 \ | |
| 6818 | 2366 diagnostic(bool, TraceGCTaskThread, false, \ |
| 0 | 2367 "Trace actions of the GC task threads") \ |
| 2368 \ | |
| 2369 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
| 2370 "Print the time taken by each parallel old gc phase." \ | |
| 2371 "PrintGCDetails must also be enabled.") \ | |
| 2372 \ | |
| 2373 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
| 2374 "Trace parallel old gc marking phase") \ | |
| 2375 \ | |
| 2376 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
| 2377 "Trace parallel old gc summary phase") \ | |
| 2378 \ | |
| 2379 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
| 2380 "Trace parallel old gc compaction phase") \ | |
| 2381 \ | |
| 2382 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
| 2383 "Trace parallel old gc dense prefix computation") \ | |
| 2384 \ | |
| 2385 develop(bool, IgnoreLibthreadGPFault, false, \ | |
| 2386 "Suppress workaround for libthread GP fault") \ | |
| 2387 \ | |
|
139
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|
2388 product(bool, PrintJNIGCStalls, false, \ |
|
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diff
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|
2389 "Print diagnostic message when GC is stalled" \ |
|
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diff
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|
2390 "by JNI critical section") \ |
|
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diff
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|
2391 \ |
| 10405 | 2392 experimental(double, ObjectCountCutOffPercent, 0.5, \ |
| 2393 "The percentage of the used heap that the instances of a class " \ | |
| 2394 "must occupy for the class to generate a trace event.") \ | |
| 2395 \ | |
|
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|
2396 /* GC log rotation setting */ \ |
|
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diff
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|
2397 \ |
|
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|
2398 product(bool, UseGCLogFileRotation, false, \ |
|
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diff
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|
2399 "Prevent large gclog file for long running app. " \ |
|
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diff
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|
2400 "Requires -Xloggc:<filename>") \ |
|
2a241e764894
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diff
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|
2401 \ |
|
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3418
diff
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|
2402 product(uintx, NumberOfGCLogFiles, 0, \ |
|
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3418
diff
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|
2403 "Number of gclog files in rotation, " \ |
|
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diff
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|
2404 "Default: 0, no rotation") \ |
|
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|
2405 \ |
|
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diff
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|
2406 product(uintx, GCLogFileSize, 0, \ |
|
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diff
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|
2407 "GC log file size, Default: 0 bytes, no rotation " \ |
|
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|
2408 "Only valid with UseGCLogFileRotation") \ |
|
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|
2409 \ |
| 0 | 2410 /* JVMTI heap profiling */ \ |
| 2411 \ | |
| 2412 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
| 2413 "Trace JVMTI object tagging calls") \ | |
| 2414 \ | |
| 2415 diagnostic(bool, VerifyBeforeIteration, false, \ | |
| 2416 "Verify memory system before JVMTI iteration") \ | |
| 2417 \ | |
| 2418 /* compiler interface */ \ | |
| 2419 \ | |
| 2420 develop(bool, CIPrintCompilerName, false, \ | |
| 2421 "when CIPrint is active, print the name of the active compiler") \ | |
| 2422 \ | |
| 2423 develop(bool, CIPrintCompileQueue, false, \ | |
| 2424 "display the contents of the compile queue whenever a " \ | |
| 2425 "compilation is enqueued") \ | |
| 2426 \ | |
| 2427 develop(bool, CIPrintRequests, false, \ | |
| 2428 "display every request for compilation") \ | |
| 2429 \ | |
| 2430 product(bool, CITime, false, \ | |
| 2431 "collect timing information for compilation") \ | |
| 2432 \ | |
| 2433 develop(bool, CITimeEach, false, \ | |
| 2434 "display timing information after each successful compilation") \ | |
| 2435 \ | |
| 6843 | 2436 develop(bool, CICountOSR, false, \ |
| 0 | 2437 "use a separate counter when assigning ids to osr compilations") \ |
| 2438 \ | |
| 2439 develop(bool, CICompileNatives, true, \ | |
| 2440 "compile native methods if supported by the compiler") \ | |
| 2441 \ | |
| 2442 develop_pd(bool, CICompileOSR, \ | |
| 2443 "compile on stack replacement methods if supported by the " \ | |
| 2444 "compiler") \ | |
| 2445 \ | |
| 2446 develop(bool, CIPrintMethodCodes, false, \ | |
| 2447 "print method bytecodes of the compiled code") \ | |
| 2448 \ | |
| 2449 develop(bool, CIPrintTypeFlow, false, \ | |
| 2450 "print the results of ciTypeFlow analysis") \ | |
| 2451 \ | |
| 2452 develop(bool, CITraceTypeFlow, false, \ | |
| 2453 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
| 2454 \ | |
| 2403 | 2455 develop(intx, OSROnlyBCI, -1, \ |
| 2456 "OSR only at this bci. Negative values mean exclude that bci") \ | |
| 2457 \ | |
| 0 | 2458 /* compiler */ \ |
| 2459 \ | |
| 2460 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
| 2461 "Number of compiler threads to run") \ | |
| 2462 \ | |
| 2463 product(intx, CompilationPolicyChoice, 0, \ | |
| 2464 "which compilation policy (0/1)") \ | |
| 2465 \ | |
| 2466 develop(bool, UseStackBanging, true, \ | |
| 2467 "use stack banging for stack overflow checks (required for " \ | |
| 2468 "proper StackOverflow handling; disable only to measure cost " \ | |
| 2469 "of stackbanging)") \ | |
| 2470 \ | |
| 2471 develop(bool, UseStrictFP, true, \ | |
| 2472 "use strict fp if modifier strictfp is set") \ | |
| 2473 \ | |
| 2474 develop(bool, GenerateSynchronizationCode, true, \ | |
| 2475 "generate locking/unlocking code for synchronized methods and " \ | |
| 2476 "monitors") \ | |
| 2477 \ | |
| 2478 develop(bool, GenerateCompilerNullChecks, true, \ | |
| 2479 "Generate explicit null checks for loads/stores/calls") \ | |
| 2480 \ | |
| 2481 develop(bool, GenerateRangeChecks, true, \ | |
| 2482 "Generate range checks for array accesses") \ | |
| 2483 \ | |
| 2484 develop_pd(bool, ImplicitNullChecks, \ | |
| 2485 "generate code for implicit null checks") \ | |
| 2486 \ | |
| 2487 product(bool, PrintSafepointStatistics, false, \ | |
| 2488 "print statistics about safepoint synchronization") \ | |
| 2489 \ | |
| 2490 product(intx, PrintSafepointStatisticsCount, 300, \ | |
| 2491 "total number of safepoint statistics collected " \ | |
| 2492 "before printing them out") \ | |
| 2493 \ | |
| 2494 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
| 2495 "print safepoint statistics only when safepoint takes" \ | |
| 2496 " more than PrintSafepointSatisticsTimeout in millis") \ | |
| 2497 \ | |
|
1321
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|
2498 product(bool, TraceSafepointCleanupTime, false, \ |
|
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|
2499 "print the break down of clean up tasks performed during" \ |
|
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|
2500 " safepoint") \ |
|
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|
2501 \ |
| 0 | 2502 product(bool, Inline, true, \ |
| 2503 "enable inlining") \ | |
| 2504 \ | |
| 2505 product(bool, ClipInlining, true, \ | |
| 2506 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
| 2507 \ | |
| 2508 develop(bool, UseCHA, true, \ | |
| 2509 "enable CHA") \ | |
| 2510 \ | |
| 2511 product(bool, UseTypeProfile, true, \ | |
| 2512 "Check interpreter profile for historically monomorphic calls") \ | |
| 2513 \ | |
| 2514 notproduct(bool, TimeCompiler, false, \ | |
| 2515 "time the compiler") \ | |
| 2516 \ | |
| 2517 diagnostic(bool, PrintInlining, false, \ | |
| 2518 "prints inlining optimizations") \ | |
| 2519 \ | |
|
643
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|
2520 product(bool, UsePopCountInstruction, false, \ |
|
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|
2521 "Use population count instruction") \ |
|
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|
2522 \ |
| 0 | 2523 develop(bool, EagerInitialization, false, \ |
| 2524 "Eagerly initialize classes if possible") \ | |
| 2525 \ | |
| 2526 develop(bool, TraceMethodReplacement, false, \ | |
| 2527 "Print when methods are replaced do to recompilation") \ | |
| 2528 \ | |
| 2529 develop(bool, PrintMethodFlushing, false, \ | |
| 2530 "print the nmethods being flushed") \ | |
| 2531 \ | |
| 2532 develop(bool, UseRelocIndex, false, \ | |
| 2533 "use an index to speed random access to relocations") \ | |
| 2534 \ | |
| 2535 develop(bool, StressCodeBuffers, false, \ | |
| 2536 "Exercise code buffer expansion and other rare state changes") \ | |
| 2537 \ | |
| 2538 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
| 2539 "Generate extra debugging info for non-safepoints in nmethods") \ | |
| 2540 \ | |
| 4066 | 2541 product(bool, PrintVMOptions, false, \ |
| 1150 | 2542 "Print flags that appeared on the command line") \ |
| 0 | 2543 \ |
| 564 | 2544 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
| 2545 "Ignore unrecognized VM options") \ | |
| 2546 \ | |
| 1150 | 2547 product(bool, PrintCommandLineFlags, false, \ |
| 2548 "Print flags specified on command line or set by ergonomics") \ | |
| 2549 \ | |
| 2550 product(bool, PrintFlagsInitial, false, \ | |
| 2551 "Print all VM flags before argument processing and exit VM") \ | |
| 2552 \ | |
| 2553 product(bool, PrintFlagsFinal, false, \ | |
| 2554 "Print all VM flags after argument and ergonomic processing") \ | |
| 2555 \ | |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2556 notproduct(bool, PrintFlagsWithComments, false, \ |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2557 "Print all VM flags with default values and descriptions and exit")\ |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1749
diff
changeset
|
2558 \ |
| 0 | 2559 diagnostic(bool, SerializeVMOutput, true, \ |
|
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12190
diff
changeset
|
2560 "Use a mutex to serialize output to tty and LogFile") \ |
| 0 | 2561 \ |
| 2562 diagnostic(bool, DisplayVMOutput, true, \ | |
| 2563 "Display all VM output on the tty, independently of LogVMOutput") \ | |
| 2564 \ | |
|
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12190
diff
changeset
|
2565 diagnostic(bool, LogVMOutput, false, \ |
|
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12190
diff
changeset
|
2566 "Save VM output to LogFile") \ |
| 0 | 2567 \ |
| 2568 diagnostic(ccstr, LogFile, NULL, \ | |
|
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12190
diff
changeset
|
2569 "If LogVMOutput or LogCompilation is on, save VM output to " \ |
|
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12190
diff
changeset
|
2570 "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)") \ |
| 0 | 2571 \ |
| 2572 product(ccstr, ErrorFile, NULL, \ | |
| 2573 "If an error occurs, save the error data to this file " \ | |
| 2574 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
| 2575 \ | |
| 2576 product(bool, DisplayVMOutputToStderr, false, \ | |
| 2577 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
| 2578 \ | |
| 2579 product(bool, DisplayVMOutputToStdout, false, \ | |
| 2580 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
| 2581 \ | |
| 2582 product(bool, UseHeavyMonitors, false, \ | |
| 2583 "use heavyweight instead of lightweight Java monitors") \ | |
| 2584 \ | |
| 6162 | 2585 product(bool, PrintStringTableStatistics, false, \ |
| 2586 "print statistics about the StringTable and SymbolTable") \ | |
| 2587 \ | |
|
12275
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12190
diff
changeset
|
2588 diagnostic(bool, VerifyStringTableAtExit, false, \ |
|
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12190
diff
changeset
|
2589 "verify StringTable contents at exit") \ |
|
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12190
diff
changeset
|
2590 \ |
| 0 | 2591 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
| 2592 "print histogram of the symbol table") \ | |
| 2593 \ | |
| 2594 notproduct(bool, ExitVMOnVerifyError, false, \ | |
| 2595 "standard exit from VM if bytecode verify error " \ | |
| 2596 "(only in debug mode)") \ | |
| 2597 \ | |
| 2598 notproduct(ccstr, AbortVMOnException, NULL, \ | |
| 2599 "Call fatal if this exception is thrown. Example: " \ | |
| 2600 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
| 2601 \ | |
|
1684
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2602 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
|
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2603 "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
|
2604 "has this message.") \ |
|
66c5dadb4d61
6973308: Missing zero length check before repne scas in check_klass_subtype_slow_path()
kvn
parents:
1660
diff
changeset
|
2605 \ |
| 0 | 2606 develop(bool, DebugVtables, false, \ |
| 2607 "add debugging code to vtable dispatch") \ | |
| 2608 \ | |
| 2609 develop(bool, PrintVtables, false, \ | |
| 2610 "print vtables when printing klass") \ | |
| 2611 \ | |
| 2612 notproduct(bool, PrintVtableStats, false, \ | |
| 2613 "print vtables stats at end of run") \ | |
| 2614 \ | |
| 2615 develop(bool, TraceCreateZombies, false, \ | |
| 2616 "trace creation of zombie nmethods") \ | |
| 2617 \ | |
| 2618 notproduct(bool, IgnoreLockingAssertions, false, \ | |
| 2619 "disable locking assertions (for speed)") \ | |
| 2620 \ | |
| 2621 product(bool, RangeCheckElimination, true, \ | |
| 8860 | 2622 "Eliminate range checks") \ |
| 0 | 2623 \ |
| 2624 develop_pd(bool, UncommonNullCast, \ | |
| 2625 "track occurrences of null in casts; adjust compiler tactics") \ | |
| 2626 \ | |
| 2627 develop(bool, TypeProfileCasts, true, \ | |
| 2628 "treat casts like calls for purposes of type profiling") \ | |
| 2629 \ | |
| 2630 develop(bool, DelayCompilationDuringStartup, true, \ | |
| 2631 "Delay invoking the compiler until main application class is " \ | |
| 2632 "loaded") \ | |
| 2633 \ | |
| 2634 develop(bool, CompileTheWorld, false, \ | |
| 2635 "Compile all methods in all classes in bootstrap class path " \ | |
| 2636 "(stress test)") \ | |
| 2637 \ | |
| 2638 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
| 2639 "Preload all classes used by a class before start loading") \ | |
| 2640 \ | |
|
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2641 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2642 "Force a safepoint every n compiles so sweeper can keep up") \ |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2643 \ |
| 0 | 2644 develop(bool, FillDelaySlots, true, \ |
| 2645 "Fill delay slots (on SPARC only)") \ | |
| 2646 \ | |
| 2647 develop(bool, TimeLivenessAnalysis, false, \ | |
| 2648 "Time computation of bytecode liveness analysis") \ | |
| 2649 \ | |
| 2650 develop(bool, TraceLivenessGen, false, \ | |
| 2651 "Trace the generation of liveness analysis information") \ | |
| 2652 \ | |
| 2653 notproduct(bool, TraceLivenessQuery, false, \ | |
| 2654 "Trace queries of liveness analysis information") \ | |
| 2655 \ | |
| 2656 notproduct(bool, CollectIndexSetStatistics, false, \ | |
| 2657 "Collect information about IndexSets") \ | |
| 2658 \ | |
| 2659 develop(bool, UseLoopSafepoints, true, \ | |
| 2660 "Generate Safepoint nodes in every loop") \ | |
| 2661 \ | |
| 2662 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
| 2663 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
| 2664 "Inline allocations larger than this in doublewords must go slow")\ | |
| 2665 \ | |
| 2666 product(bool, AggressiveOpts, false, \ | |
| 2667 "Enable aggressive optimizations - see arguments.cpp") \ | |
| 2668 \ | |
| 2669 /* statistics */ \ | |
| 2670 develop(bool, CountCompiledCalls, false, \ | |
| 2671 "counts method invocations") \ | |
| 2672 \ | |
| 2673 notproduct(bool, CountRuntimeCalls, false, \ | |
| 2674 "counts VM runtime calls") \ | |
| 2675 \ | |
| 2676 develop(bool, CountJNICalls, false, \ | |
| 2677 "counts jni method invocations") \ | |
| 2678 \ | |
| 2679 notproduct(bool, CountJVMCalls, false, \ | |
| 2680 "counts jvm method invocations") \ | |
| 2681 \ | |
| 2682 notproduct(bool, CountRemovableExceptions, false, \ | |
| 2683 "count exceptions that could be replaced by branches due to " \ | |
| 2684 "inlining") \ | |
| 2685 \ | |
| 2686 notproduct(bool, ICMissHistogram, false, \ | |
| 2687 "produce histogram of IC misses") \ | |
| 2688 \ | |
| 2689 notproduct(bool, PrintClassStatistics, false, \ | |
| 2690 "prints class statistics at end of run") \ | |
| 2691 \ | |
| 2692 notproduct(bool, PrintMethodStatistics, false, \ | |
| 2693 "prints method statistics at end of run") \ | |
| 2694 \ | |
| 2695 /* interpreter */ \ | |
| 2696 develop(bool, ClearInterpreterLocals, false, \ | |
| 2697 "Always clear local variables of interpreter activations upon " \ | |
| 2698 "entry") \ | |
| 2699 \ | |
| 2700 product_pd(bool, RewriteBytecodes, \ | |
| 2701 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
| 2702 \ | |
| 2703 product_pd(bool, RewriteFrequentPairs, \ | |
| 2704 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
| 2705 \ | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
2706 diagnostic(bool, PrintInterpreter, false, \ |
| 0 | 2707 "Prints the generated interpreter code") \ |
| 2708 \ | |
| 2709 product(bool, UseInterpreter, true, \ | |
| 2710 "Use interpreter for non-compiled methods") \ | |
| 2711 \ | |
| 2712 develop(bool, UseFastSignatureHandlers, true, \ | |
| 2713 "Use fast signature handlers for native calls") \ | |
| 2714 \ | |
| 2715 product(bool, UseLoopCounter, true, \ | |
| 2716 "Increment invocation counter on backward branch") \ | |
| 2717 \ | |
| 2718 product(bool, UseFastEmptyMethods, true, \ | |
| 2719 "Use fast method entry code for empty methods") \ | |
| 2720 \ | |
| 2721 product(bool, UseFastAccessorMethods, true, \ | |
| 2722 "Use fast method entry code for accessor methods") \ | |
| 2723 \ | |
| 2724 product_pd(bool, UseOnStackReplacement, \ | |
| 2725 "Use on stack replacement, calls runtime if invoc. counter " \ | |
| 2726 "overflows in loop") \ | |
| 2727 \ | |
| 2728 notproduct(bool, TraceOnStackReplacement, false, \ | |
| 2729 "Trace on stack replacement") \ | |
| 2730 \ | |
| 2731 product_pd(bool, PreferInterpreterNativeStubs, \ | |
| 2732 "Use always interpreter stubs for native methods invoked via " \ | |
| 2733 "interpreter") \ | |
| 2734 \ | |
| 2735 develop(bool, CountBytecodes, false, \ | |
| 2736 "Count number of bytecodes executed") \ | |
| 2737 \ | |
| 2738 develop(bool, PrintBytecodeHistogram, false, \ | |
| 2739 "Print histogram of the executed bytecodes") \ | |
| 2740 \ | |
| 2741 develop(bool, PrintBytecodePairHistogram, false, \ | |
| 2742 "Print histogram of the executed bytecode pairs") \ | |
| 2743 \ | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
2744 diagnostic(bool, PrintSignatureHandlers, false, \ |
| 0 | 2745 "Print code generated for native method signature handlers") \ |
| 2746 \ | |
| 2747 develop(bool, VerifyOops, false, \ | |
| 2748 "Do plausibility checks for oops") \ | |
| 2749 \ | |
| 2750 develop(bool, CheckUnhandledOops, false, \ | |
| 2751 "Check for unhandled oops in VM code") \ | |
| 2752 \ | |
| 2753 develop(bool, VerifyJNIFields, trueInDebug, \ | |
| 2754 "Verify jfieldIDs for instance fields") \ | |
| 2755 \ | |
| 2756 notproduct(bool, VerifyJNIEnvThread, false, \ | |
| 2757 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
| 2758 "from JNI") \ | |
| 2759 \ | |
| 2760 develop(bool, VerifyFPU, false, \ | |
| 2761 "Verify FPU state (check for NaN's, etc.)") \ | |
| 2762 \ | |
| 2763 develop(bool, VerifyThread, false, \ | |
| 2764 "Watch the thread register for corruption (SPARC only)") \ | |
| 2765 \ | |
| 2766 develop(bool, VerifyActivationFrameSize, false, \ | |
| 2767 "Verify that activation frame didn't become smaller than its " \ | |
| 2768 "minimal size") \ | |
| 2769 \ | |
| 2770 develop(bool, TraceFrequencyInlining, false, \ | |
| 2771 "Trace frequency based inlining") \ | |
| 2772 \ | |
| 2773 develop_pd(bool, InlineIntrinsics, \ | |
| 2774 "Inline intrinsics that can be statically resolved") \ | |
| 2775 \ | |
| 2776 product_pd(bool, ProfileInterpreter, \ | |
| 2777 "Profile at the bytecode level during interpretation") \ | |
| 2778 \ | |
| 2779 develop_pd(bool, ProfileTraps, \ | |
| 2780 "Profile deoptimization traps at the bytecode level") \ | |
| 2781 \ | |
| 2782 product(intx, ProfileMaturityPercentage, 20, \ | |
| 2783 "number of method invocations/branches (expressed as % of " \ | |
| 2784 "CompileThreshold) before using the method's profile") \ | |
| 2785 \ | |
| 2786 develop(bool, PrintMethodData, false, \ | |
| 2787 "Print the results of +ProfileInterpreter at end of run") \ | |
| 2788 \ | |
| 2789 develop(bool, VerifyDataPointer, trueInDebug, \ | |
| 2790 "Verify the method data pointer during interpreter profiling") \ | |
| 2791 \ | |
| 2792 develop(bool, VerifyCompiledCode, false, \ | |
| 2793 "Include miscellaneous runtime verifications in nmethod code; " \ | |
| 1064 | 2794 "default off because it disturbs nmethod size heuristics") \ |
| 0 | 2795 \ |
|
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2796 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
|
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2797 "Manually make GC thread crash then dump java stack trace; " \ |
|
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2798 "Test only") \ |
| 0 | 2799 \ |
| 2800 /* compilation */ \ | |
| 2801 product(bool, UseCompiler, true, \ | |
| 2802 "use compilation") \ | |
| 2803 \ | |
| 2804 develop(bool, TraceCompilationPolicy, false, \ | |
| 2805 "Trace compilation policy") \ | |
| 2806 \ | |
| 2807 develop(bool, TimeCompilationPolicy, false, \ | |
| 2808 "Time the compilation policy") \ | |
| 2809 \ | |
| 2810 product(bool, UseCounterDecay, true, \ | |
| 2811 "adjust recompilation counters") \ | |
| 2812 \ | |
| 2813 develop(intx, CounterHalfLifeTime, 30, \ | |
| 2814 "half-life time of invocation counters (in secs)") \ | |
| 2815 \ | |
| 2816 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
| 2817 "Min. ms. between invocation of CounterDecay") \ | |
| 2818 \ | |
| 2819 product(bool, AlwaysCompileLoopMethods, false, \ | |
| 2820 "when using recompilation, never interpret methods " \ | |
| 2821 "containing loops") \ | |
| 2822 \ | |
| 2823 product(bool, DontCompileHugeMethods, true, \ | |
| 2824 "don't compile methods > HugeMethodLimit") \ | |
| 2825 \ | |
| 2826 /* Bytecode escape analysis estimation. */ \ | |
| 2827 product(bool, EstimateArgEscape, true, \ | |
| 2828 "Analyze bytecodes to estimate escape state of arguments") \ | |
| 2829 \ | |
| 2830 product(intx, BCEATraceLevel, 0, \ | |
| 2831 "How much tracing to do of bytecode escape analysis estimates") \ | |
| 2832 \ | |
| 2833 product(intx, MaxBCEAEstimateLevel, 5, \ | |
| 2834 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
| 2835 \ | |
| 2836 product(intx, MaxBCEAEstimateSize, 150, \ | |
| 2837 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
| 2838 \ | |
| 2839 product(intx, AllocatePrefetchStyle, 1, \ | |
| 2840 "0 = no prefetch, " \ | |
| 2841 "1 = prefetch instructions for each allocation, " \ | |
|
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2842 "2 = use TLAB watermark to gate allocation prefetch, " \ |
|
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2843 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
| 0 | 2844 \ |
| 2845 product(intx, AllocatePrefetchDistance, -1, \ | |
| 2846 "Distance to prefetch ahead of allocation pointer") \ | |
| 2847 \ | |
| 3854 | 2848 product(intx, AllocatePrefetchLines, 3, \ |
| 2849 "Number of lines to prefetch ahead of array allocation pointer") \ | |
| 2850 \ | |
| 2851 product(intx, AllocateInstancePrefetchLines, 1, \ | |
| 2852 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
| 0 | 2853 \ |
| 2854 product(intx, AllocatePrefetchStepSize, 16, \ | |
| 2855 "Step size in bytes of sequential prefetch instructions") \ | |
| 2856 \ | |
| 2857 product(intx, AllocatePrefetchInstr, 0, \ | |
| 2858 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
| 2859 \ | |
| 2860 /* deoptimization */ \ | |
|
2607
008adfd6d850
Fixed the stateBefore of invokes and monitorenter instructions to include the arguments of the instruction.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2492
diff
changeset
|
2861 product(bool, TraceDeoptimization, false, \ |
| 0 | 2862 "Trace deoptimization") \ |
| 2863 \ | |
|
4668
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2864 product(bool, PrintDeoptimizationDetails, false, \ |
|
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2865 "Print more information about deoptimization") \ |
|
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2866 \ |
| 0 | 2867 develop(bool, DebugDeoptimization, false, \ |
| 2868 "Tracing various information while debugging deoptimization") \ | |
| 2869 \ | |
| 2870 product(intx, SelfDestructTimer, 0, \ | |
| 2871 "Will cause VM to terminate after a given time (in minutes) " \ | |
| 2872 "(0 means off)") \ | |
| 2873 \ | |
| 2874 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
| 2875 "Max. no. of lines in the stack trace for Java exceptions " \ | |
| 2876 "(0 means all)") \ | |
| 2877 \ | |
|
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
2878 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
| 0 | 2879 "Guarantee a safepoint (at least) every so many milliseconds " \ |
|
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2880 "(0 means none)")) \ |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2881 \ |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2882 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2883 "Guarantee a safepoint (at least) every so many milliseconds " \ |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2884 "(0 means none)")) \ |
| 0 | 2885 \ |
| 2886 product(intx, SafepointTimeoutDelay, 10000, \ | |
| 2887 "Delay in milliseconds for option SafepointTimeout") \ | |
| 2888 \ | |
| 6818 | 2889 product(intx, NmethodSweepFraction, 16, \ |
| 0 | 2890 "Number of invocations of sweeper to cover all nmethods") \ |
| 2891 \ | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2892 product(intx, NmethodSweepCheckInterval, 5, \ |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2893 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2894 \ |
|
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2895 product(intx, NmethodSweepActivity, 10, \ |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2896 "Removes cold nmethods from code cache if > 0. Higher values " \ |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2897 "result in more aggressive sweeping") \ |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2898 \ |
|
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2899 notproduct(bool, LogSweeper, false, \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2900 "Keep a ring buffer of sweeper activity") \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2901 \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2902 notproduct(intx, SweeperLogEntries, 1024, \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2903 "Number of records in the ring buffer of sweeper activity") \ |
|
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2904 \ |
| 0 | 2905 notproduct(intx, MemProfilingInterval, 500, \ |
| 2906 "Time between each invocation of the MemProfiler") \ | |
| 2907 \ | |
| 2908 develop(intx, MallocCatchPtr, -1, \ | |
| 2909 "Hit breakpoint when mallocing/freeing this pointer") \ | |
| 2910 \ | |
| 2911 notproduct(intx, AssertRepeat, 1, \ | |
| 2912 "number of times to evaluate expression in assert " \ | |
| 2913 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
| 2914 \ | |
| 2915 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
| 2916 "List of assertions (file:line) to muzzle") \ | |
| 2917 \ | |
| 2918 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
| 2919 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
| 2920 "is used") \ | |
| 2921 \ | |
| 2922 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
| 2923 "Threshold for total handle allocation when " \ | |
| 2924 "+TraceHandleAllocation is used") \ | |
| 2925 \ | |
| 2926 develop(intx, StackPrintLimit, 100, \ | |
| 2927 "number of stack frames to print in VM-level stack dump") \ | |
| 2928 \ | |
| 2929 notproduct(intx, MaxElementPrintSize, 256, \ | |
| 2930 "maximum number of elements to print") \ | |
| 2931 \ | |
| 2932 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
| 2933 "maximum number of subklasses to print when printing klass") \ | |
| 2934 \ | |
|
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2935 product(intx, MaxInlineLevel, 9, \ |
| 0 | 2936 "maximum number of nested calls that are inlined") \ |
| 2937 \ | |
|
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2938 product(intx, MaxRecursiveInlineLevel, 1, \ |
| 0 | 2939 "maximum number of nested recursive calls that are inlined") \ |
| 2940 \ | |
| 675 | 2941 product_pd(intx, InlineSmallCode, \ |
| 0 | 2942 "Only inline already compiled methods if their code size is " \ |
| 2943 "less than this") \ | |
| 2944 \ | |
| 2945 product(intx, MaxInlineSize, 35, \ | |
| 2946 "maximum bytecode size of a method to be inlined") \ | |
| 2947 \ | |
| 2948 product_pd(intx, FreqInlineSize, \ | |
| 2949 "maximum bytecode size of a frequent method to be inlined") \ | |
| 2950 \ | |
|
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2951 product(intx, MaxTrivialSize, 6, \ |
| 0 | 2952 "maximum bytecode size of a trivial method to be inlined") \ |
| 2953 \ | |
|
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2954 product(intx, MinInliningThreshold, 250, \ |
| 0 | 2955 "min. invocation count a method needs to have to be inlined") \ |
| 2956 \ | |
| 2957 develop(intx, MethodHistogramCutoff, 100, \ | |
| 2958 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
| 2959 \ | |
| 2960 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
| 2961 "# of interpreted methods to show in profile") \ | |
| 2962 \ | |
| 2963 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
| 2964 "# of compiled methods to show in profile") \ | |
| 2965 \ | |
| 2966 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
| 2967 "# of stub methods to show in profile") \ | |
| 2968 \ | |
| 2969 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
| 2970 "# of runtime stub nodes to show in profile") \ | |
| 2971 \ | |
| 2972 product(intx, ProfileIntervalsTicks, 100, \ | |
| 2973 "# of ticks between printing of interval profile " \ | |
| 2974 "(+ProfileIntervals)") \ | |
| 2975 \ | |
| 2976 notproduct(intx, ScavengeALotInterval, 1, \ | |
| 2977 "Interval between which scavenge will occur with +ScavengeALot") \ | |
| 2978 \ | |
| 2979 notproduct(intx, FullGCALotInterval, 1, \ | |
| 2980 "Interval between which full gc will occur with +FullGCALot") \ | |
| 2981 \ | |
| 2982 notproduct(intx, FullGCALotStart, 0, \ | |
| 2983 "For which invocation to start FullGCAlot") \ | |
| 2984 \ | |
| 2985 notproduct(intx, FullGCALotDummies, 32*K, \ | |
| 2986 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
| 2987 "to move") \ | |
| 2988 \ | |
| 2989 develop(intx, DontYieldALotInterval, 10, \ | |
| 2990 "Interval between which yields will be dropped (milliseconds)") \ | |
| 2991 \ | |
| 2992 develop(intx, MinSleepInterval, 1, \ | |
| 2993 "Minimum sleep() interval (milliseconds) when " \ | |
| 2994 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
| 2995 \ | |
| 2996 develop(intx, ProfilerPCTickThreshold, 15, \ | |
| 2997 "Number of ticks in a PC buckets to be a hotspot") \ | |
| 2998 \ | |
| 2999 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
| 3000 "Number of exits until DeoptimizeALot kicks in") \ | |
| 3001 \ | |
| 3002 notproduct(intx, ZombieALotInterval, 5, \ | |
| 3003 "Number of exits until ZombieALot kicks in") \ | |
| 3004 \ | |
| 3005 develop(bool, StressNonEntrant, false, \ | |
| 3006 "Mark nmethods non-entrant at registration") \ | |
| 3007 \ | |
| 3008 diagnostic(intx, MallocVerifyInterval, 0, \ | |
| 3009 "if non-zero, verify C heap after every N calls to " \ | |
| 3010 "malloc/realloc/free") \ | |
| 3011 \ | |
| 3012 diagnostic(intx, MallocVerifyStart, 0, \ | |
| 3013 "if non-zero, start verifying C heap after Nth call to " \ | |
| 3014 "malloc/realloc/free") \ | |
| 3015 \ | |
|
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
3016 diagnostic(uintx, MallocMaxTestWords, 0, \ |
|
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
3017 "if non-zero, max # of Words that malloc/realloc can allocate " \ |
|
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
3018 "(for testing only)") \ |
|
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
3019 \ |
|
7214
e9fe9d3d94ac
re-enabled inlining of polymorphic calls with more than 2 receiver types
Christian Haeubl <haeubl@ssw.jku.at>
parents:
7068
diff
changeset
|
3020 product_pd(intx, TypeProfileWidth, \ |
| 0 | 3021 "number of receiver types to record in call/cast profile") \ |
| 3022 \ | |
|
9760
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9627
diff
changeset
|
3023 product_pd(intx, MethodProfileWidth, \ |
|
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9627
diff
changeset
|
3024 "number of methods to record in call profile") \ |
|
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9627
diff
changeset
|
3025 \ |
| 0 | 3026 develop(intx, BciProfileWidth, 2, \ |
| 3027 "number of return bci's to record in ret profile") \ | |
| 3028 \ | |
| 3029 product(intx, PerMethodRecompilationCutoff, 400, \ | |
| 3030 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
| 3031 \ | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
3032 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
| 0 | 3033 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
| 3034 \ | |
| 3035 product(intx, PerMethodTrapLimit, 100, \ | |
| 3036 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
| 3037 \ | |
| 3038 product(intx, PerBytecodeTrapLimit, 4, \ | |
| 3039 "Limit on traps (of one kind) at a particular BCI") \ | |
| 3040 \ | |
| 3041 develop(intx, InlineFrequencyRatio, 20, \ | |
| 3042 "Ratio of call site execution to caller method invocation") \ | |
| 3043 \ | |
| 3044 develop_pd(intx, InlineFrequencyCount, \ | |
| 3045 "Count of call site execution necessary to trigger frequent " \ | |
| 3046 "inlining") \ | |
| 3047 \ | |
| 3048 develop(intx, InlineThrowCount, 50, \ | |
| 3049 "Force inlining of interpreted methods that throw this often") \ | |
| 3050 \ | |
| 3051 develop(intx, InlineThrowMaxSize, 200, \ | |
| 3052 "Force inlining of throwing methods smaller than this") \ | |
| 3053 \ | |
| 3054 develop(intx, ProfilerNodeSize, 1024, \ | |
| 3055 "Size in K to allocate for the Profile Nodes of each thread") \ | |
| 3056 \ | |
| 3057 product_pd(intx, PreInflateSpin, \ | |
| 3058 "Number of times to spin wait before inflation") \ | |
| 3059 \ | |
| 3060 /* gc parameters */ \ | |
| 1064 | 3061 product(uintx, InitialHeapSize, 0, \ |
|
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10208
diff
changeset
|
3062 "Initial heap size (in bytes); zero means use ergonomics") \ |
| 1064 | 3063 \ |
| 3064 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
| 3065 "Maximum heap size (in bytes)") \ | |
| 3066 \ | |
| 3067 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
| 3068 "Initial tenured generation size (in bytes)") \ | |
| 3069 \ | |
|
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
3070 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
| 1064 | 3071 "Initial new generation size (in bytes)") \ |
| 0 | 3072 \ |
| 3073 product(uintx, MaxNewSize, max_uintx, \ | |
| 1064 | 3074 "Maximum new generation size (in bytes), max_uintx means set " \ |
| 3075 "ergonomically") \ | |
| 0 | 3076 \ |
| 3077 product(uintx, PretenureSizeThreshold, 0, \ | |
| 1064 | 3078 "Maximum size in bytes of objects allocated in DefNew " \ |
| 3079 "generation; zero means no maximum") \ | |
| 3080 \ | |
| 3081 product(uintx, TLABSize, 0, \ | |
| 3082 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
| 0 | 3083 \ |
| 3084 product(uintx, MinTLABSize, 2*K, \ | |
| 3085 "Minimum allowed TLAB size (in bytes)") \ | |
| 3086 \ | |
| 3087 product(uintx, TLABAllocationWeight, 35, \ | |
| 3088 "Allocation averaging weight") \ | |
| 3089 \ | |
| 3090 product(uintx, TLABWasteTargetPercent, 1, \ | |
| 3091 "Percentage of Eden that can be wasted") \ | |
| 3092 \ | |
| 3093 product(uintx, TLABRefillWasteFraction, 64, \ | |
| 3094 "Max TLAB waste at a refill (internal fragmentation)") \ | |
| 3095 \ | |
| 3096 product(uintx, TLABWasteIncrement, 4, \ | |
| 3097 "Increment allowed waste at slow allocation") \ | |
| 3098 \ | |
| 8035 | 3099 product(uintx, SurvivorRatio, 8, \ |
| 0 | 3100 "Ratio of eden/survivor space size") \ |
| 3101 \ | |
| 8035 | 3102 product(uintx, NewRatio, 2, \ |
| 0 | 3103 "Ratio of new/old generation sizes") \ |
| 3104 \ | |
| 3105 product_pd(uintx, NewSizeThreadIncrease, \ | |
| 3106 "Additional size added to desired new generation size per " \ | |
| 3107 "non-daemon thread (in bytes)") \ | |
| 3108 \ | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3109 product_pd(uintx, MetaspaceSize, \ |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3110 "Initial size of Metaspaces (in bytes)") \ |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3111 \ |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3112 product(uintx, MaxMetaspaceSize, max_uintx, \ |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3113 "Maximum size of Metaspaces (in bytes)") \ |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3114 \ |
|
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3115 product(uintx, CompressedClassSpaceSize, 1*G, \ |
|
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3116 "Maximum size of class area in Metaspace when compressed " \ |
|
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3117 "class pointers are used") \ |
| 0 | 3118 \ |
| 3119 product(uintx, MinHeapFreeRatio, 40, \ | |
| 3120 "Min percentage of heap free after GC to avoid expansion") \ | |
| 3121 \ | |
| 3122 product(uintx, MaxHeapFreeRatio, 70, \ | |
| 3123 "Max percentage of heap free after GC to avoid shrinking") \ | |
| 3124 \ | |
| 3125 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
| 3126 "Number of milliseconds per MB of free space in the heap") \ | |
| 3127 \ | |
| 3128 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
| 3129 "Min change in heap space due to GC (in bytes)") \ | |
| 3130 \ | |
| 6818 | 3131 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ |
|
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3132 "Min expansion of Metaspace (in bytes)") \ |
|
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3133 \ |
|
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3134 product(uintx, MinMetaspaceFreeRatio, 40, \ |
|
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3135 "Min percentage of Metaspace free after GC to avoid expansion") \ |
|
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3136 \ |
|
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3137 product(uintx, MaxMetaspaceFreeRatio, 70, \ |
|
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3138 "Max percentage of Metaspace free after GC to avoid shrinking") \ |
| 0 | 3139 \ |
| 6818 | 3140 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ |
|
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3141 "Max expansion of Metaspace without full GC (in bytes)") \ |
| 0 | 3142 \ |
|
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3143 product(uintx, QueuedAllocationWarningCount, 0, \ |
| 0 | 3144 "Number of times an allocation that queues behind a GC " \ |
| 3145 "will retry before printing a warning") \ | |
| 3146 \ | |
| 3147 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
| 3148 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
| 3149 \ | |
| 3150 diagnostic(intx, VerifyGCLevel, 0, \ | |
| 3151 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
| 3152 \ | |
| 6818 | 3153 product(uintx, MaxTenuringThreshold, 15, \ |
| 0 | 3154 "Maximum value for tenuring threshold") \ |
| 3155 \ | |
| 6818 | 3156 product(uintx, InitialTenuringThreshold, 7, \ |
| 0 | 3157 "Initial value for tenuring threshold") \ |
| 3158 \ | |
| 8035 | 3159 product(uintx, TargetSurvivorRatio, 50, \ |
| 0 | 3160 "Desired percentage of survivor space used after scavenge") \ |
| 3161 \ | |
| 438 | 3162 product(uintx, MarkSweepDeadRatio, 5, \ |
| 0 | 3163 "Percentage (0-100) of the old gen allowed as dead wood." \ |
| 3164 "Serial mark sweep treats this as both the min and max value." \ | |
| 3165 "CMS uses this value only if it falls back to mark sweep." \ | |
| 3166 "Par compact uses a variable scale based on the density of the" \ | |
| 3167 "generation and treats this as the max value when the heap is" \ | |
| 3168 "either completely full or completely empty. Par compact also" \ | |
| 3169 "has a smaller default value; see arguments.cpp.") \ | |
| 3170 \ | |
|
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3171 product(uintx, MarkSweepAlwaysCompactCount, 4, \ |
| 0 | 3172 "How often should we fully compact the heap (ignoring the dead " \ |
| 3173 "space parameters)") \ | |
| 3174 \ | |
| 3175 product(intx, PrintCMSStatistics, 0, \ | |
| 3176 "Statistics for CMS") \ | |
| 3177 \ | |
| 3178 product(bool, PrintCMSInitiationStatistics, false, \ | |
| 3179 "Statistics for initiating a CMS collection") \ | |
| 3180 \ | |
| 3181 product(intx, PrintFLSStatistics, 0, \ | |
| 3182 "Statistics for CMS' FreeListSpace") \ | |
| 3183 \ | |
| 3184 product(intx, PrintFLSCensus, 0, \ | |
| 3185 "Census for CMS' FreeListSpace") \ | |
| 3186 \ | |
| 3187 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
| 3188 "Delay in ms between expansion and allocation") \ | |
| 3189 \ | |
| 6817 | 3190 develop(uintx, GCWorkerDelayMillis, 0, \ |
| 3191 "Delay in ms in scheduling GC workers") \ | |
| 3192 \ | |
| 0 | 3193 product(intx, DeferThrSuspendLoopCount, 4000, \ |
| 3194 "(Unstable) Number of times to iterate in safepoint loop " \ | |
| 3195 " before blocking VM threads ") \ | |
| 3196 \ | |
| 3197 product(intx, DeferPollingPageLoopCount, -1, \ | |
| 3198 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
| 3199 "before changing safepoint polling page to RO ") \ | |
| 3200 \ | |
| 3201 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
| 3202 \ | |
| 3203 product(bool, PSChunkLargeArrays, true, \ | |
| 3204 "true: process large arrays in chunks") \ | |
| 3205 \ | |
| 3206 product(uintx, GCDrainStackTargetSize, 64, \ | |
| 3207 "how many entries we'll try to leave on the stack during " \ | |
| 3208 "parallel GC") \ | |
| 3209 \ | |
| 3210 /* stack parameters */ \ | |
| 3211 product_pd(intx, StackYellowPages, \ | |
| 3212 "Number of yellow zone (recoverable overflows) pages") \ | |
| 3213 \ | |
| 3214 product_pd(intx, StackRedPages, \ | |
| 3215 "Number of red zone (unrecoverable overflows) pages") \ | |
| 3216 \ | |
| 3217 product_pd(intx, StackShadowPages, \ | |
| 3218 "Number of shadow zone (for overflow checking) pages" \ | |
| 3219 " this should exceed the depth of the VM and native call stack") \ | |
| 3220 \ | |
| 3221 product_pd(intx, ThreadStackSize, \ | |
| 3222 "Thread Stack Size (in Kbytes)") \ | |
| 3223 \ | |
| 3224 product_pd(intx, VMThreadStackSize, \ | |
| 3225 "Non-Java Thread Stack Size (in Kbytes)") \ | |
| 3226 \ | |
| 3227 product_pd(intx, CompilerThreadStackSize, \ | |
| 3228 "Compiler Thread Stack Size (in Kbytes)") \ | |
| 3229 \ | |
| 3230 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
| 3231 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
| 3232 \ | |
| 3233 product(uintx, ThreadSafetyMargin, 50*M, \ | |
| 3234 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
| 3235 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
| 3236 "disable this feature") \ | |
| 3237 \ | |
| 3238 /* code cache parameters */ \ | |
| 3239 develop(uintx, CodeCacheSegmentSize, 64, \ | |
| 3240 "Code cache segment size (in bytes) - smallest unit of " \ | |
| 3241 "allocation") \ | |
| 3242 \ | |
| 3243 develop_pd(intx, CodeEntryAlignment, \ | |
| 3244 "Code entry alignment for generated code (in bytes)") \ | |
| 3245 \ | |
| 1365 | 3246 product_pd(intx, OptoLoopAlignment, \ |
| 3247 "Align inner loops to zero relative to this modulus") \ | |
| 3248 \ | |
| 0 | 3249 product_pd(uintx, InitialCodeCacheSize, \ |
| 3250 "Initial code cache size (in bytes)") \ | |
| 3251 \ | |
|
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3252 develop_pd(uintx, CodeCacheMinimumUseSpace, \ |
|
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3253 "Minimum code cache size (in bytes) required to start VM.") \ |
|
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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10405
diff
changeset
|
3254 \ |
| 0 | 3255 product_pd(uintx, ReservedCodeCacheSize, \ |
| 3256 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
| 3257 \ | |
| 3258 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
| 3259 "When less than X space left, we stop compiling.") \ | |
| 3260 \ | |
| 3261 product_pd(uintx, CodeCacheExpansionSize, \ | |
| 3262 "Code cache expansion size (in bytes)") \ | |
| 3263 \ | |
| 3264 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
| 3265 "Minimum number of segments in a code cache block.") \ | |
| 3266 \ | |
| 3267 notproduct(bool, ExitOnFullCodeCache, false, \ | |
| 3268 "Exit the VM if we fill the code cache.") \ | |
| 3269 \ | |
| 4039 | 3270 product(bool, UseCodeCacheFlushing, true, \ |
| 1202 | 3271 "Attempt to clean the code cache before shutting off compiler") \ |
| 3272 \ | |
| 0 | 3273 /* interpreter debugging */ \ |
| 3274 develop(intx, BinarySwitchThreshold, 5, \ | |
| 3275 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
| 3276 "switch") \ | |
| 3277 \ | |
| 3278 develop(intx, StopInterpreterAt, 0, \ | |
| 3279 "Stops interpreter execution at specified bytecode number") \ | |
| 3280 \ | |
| 3281 develop(intx, TraceBytecodesAt, 0, \ | |
| 3282 "Traces bytecodes starting with specified bytecode number") \ | |
| 3283 \ | |
| 3284 /* compiler interface */ \ | |
| 3285 develop(intx, CIStart, 0, \ | |
| 3286 "the id of the first compilation to permit") \ | |
| 3287 \ | |
| 3288 develop(intx, CIStop, -1, \ | |
| 3289 "the id of the last compilation to permit") \ | |
| 3290 \ | |
| 3291 develop(intx, CIStartOSR, 0, \ | |
| 3292 "the id of the first osr compilation to permit " \ | |
| 3293 "(CICountOSR must be on)") \ | |
| 3294 \ | |
| 3295 develop(intx, CIStopOSR, -1, \ | |
| 3296 "the id of the last osr compilation to permit " \ | |
| 3297 "(CICountOSR must be on)") \ | |
| 3298 \ | |
| 3299 develop(intx, CIBreakAtOSR, -1, \ | |
| 3300 "id of osr compilation to break at") \ | |
| 3301 \ | |
| 3302 develop(intx, CIBreakAt, -1, \ | |
| 3303 "id of compilation to break at") \ | |
| 3304 \ | |
| 3305 product(ccstrlist, CompileOnly, "", \ | |
| 3306 "List of methods (pkg/class.name) to restrict compilation to") \ | |
| 3307 \ | |
| 3308 product(ccstr, CompileCommandFile, NULL, \ | |
| 3309 "Read compiler commands from this file [.hotspot_compiler]") \ | |
| 3310 \ | |
| 3311 product(ccstrlist, CompileCommand, "", \ | |
| 3312 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
| 3313 \ | |
|
6972
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6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3314 develop(bool, ReplayCompiles, false, \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3315 "Enable replay of compilations from ReplayDataFile") \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3316 \ |
|
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3317 product(ccstr, ReplayDataFile, NULL, \ |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3318 "File containing compilation replay information" \ |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3319 "[default: ./replay_pid%p.log] (%p replaced with pid)") \ |
|
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3320 \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3321 develop(intx, ReplaySuppressInitializers, 2, \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3322 "Controls handling of class initialization during replay" \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3323 "0 - don't do anything special" \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3324 "1 - treat all class initializers as empty" \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3325 "2 - treat class initializers for application classes as empty" \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3326 "3 - allow all class initializers to run during bootstrap but" \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3327 " pretend they are empty after starting replay") \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3328 \ |
|
bd7a7ce2e264
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minqi
parents:
6935
diff
changeset
|
3329 develop(bool, ReplayIgnoreInitErrors, false, \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3330 "Ignore exceptions thrown during initialization for replay") \ |
|
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3331 \ |
|
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3332 product(bool, DumpReplayDataOnError, true, \ |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3333 "Record replay data for crashing compiler threads") \ |
|
6972
bd7a7ce2e264
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minqi
parents:
6935
diff
changeset
|
3334 \ |
| 0 | 3335 product(bool, CICompilerCountPerCPU, false, \ |
| 3336 "1 compiler thread for log(N CPUs)") \ | |
| 3337 \ | |
| 3338 develop(intx, CIFireOOMAt, -1, \ | |
| 3339 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
| 3340 "(non-negative value throws OOM after this many CI accesses " \ | |
| 3341 "in each compile)") \ | |
|
10197
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3342 notproduct(intx, CICrashAt, -1, \ |
|
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3343 "id of compilation to trigger assert in compiler thread for " \ |
|
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3344 "the purpose of testing, e.g. generation of replay data") \ |
|
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3345 notproduct(bool, CIObjectFactoryVerify, false, \ |
|
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3346 "enable potentially expensive verification in ciObjectFactory") \ |
|
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3347 \ |
| 0 | 3348 /* Priorities */ \ |
| 3349 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
| 3350 \ | |
| 3351 product(intx, ThreadPriorityPolicy, 0, \ | |
| 3352 "0 : Normal. "\ | |
| 3353 " VM chooses priorities that are appropriate for normal "\ | |
| 3354 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
| 3355 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
| 3356 " map to lower native priority values. On Windows applications"\ | |
| 3357 " are allowed to use higher native priorities. However, with "\ | |
| 3358 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
| 3359 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
| 3360 " interfere with system threads. On Linux thread priorities "\ | |
| 3361 " are ignored because the OS does not support static priority "\ | |
| 3362 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
| 3363 " non-root, non-realtime applications. "\ | |
| 3364 "1 : Aggressive. "\ | |
| 3365 " Java thread priorities map over to the entire range of "\ | |
| 3366 " native thread priorities. Higher Java thread priorities map "\ | |
| 3367 " to higher native thread priorities. This policy should be "\ | |
| 3368 " used with care, as sometimes it can cause performance "\ | |
| 3369 " degradation in the application and/or the entire system. On "\ | |
| 3370 " Linux this policy requires root privilege.") \ | |
| 3371 \ | |
| 3372 product(bool, ThreadPriorityVerbose, false, \ | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3373 "Print priority changes") \ |
| 0 | 3374 \ |
| 3375 product(intx, DefaultThreadPriority, -1, \ | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3376 "The native priority at which threads run if not elsewhere " \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3377 "specified (-1 means no change)") \ |
| 0 | 3378 \ |
| 3379 product(intx, CompilerThreadPriority, -1, \ | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3380 "The native priority at which compiler threads should run " \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3381 "(-1 means no change)") \ |
| 0 | 3382 \ |
| 3383 product(intx, VMThreadPriority, -1, \ | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3384 "The native priority at which the VM thread should run " \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3385 "(-1 means no change)") \ |
| 0 | 3386 \ |
| 3387 product(bool, CompilerThreadHintNoPreempt, true, \ | |
| 3388 "(Solaris only) Give compiler threads an extra quanta") \ | |
| 3389 \ | |
| 3390 product(bool, VMThreadHintNoPreempt, false, \ | |
| 3391 "(Solaris only) Give VM thread an extra quanta") \ | |
| 3392 \ | |
| 3393 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3394 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3395 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3396 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3397 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3398 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3399 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3400 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3401 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
| 3402 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
| 3403 \ | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3404 experimental(bool, UseCriticalJavaThreadPriority, false, \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3405 "Java thread priority 10 maps to critical scheduling priority") \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3406 \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3407 experimental(bool, UseCriticalCompilerThreadPriority, false, \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3408 "Compiler thread(s) run at critical scheduling priority") \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3409 \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3410 experimental(bool, UseCriticalCMSThreadPriority, false, \ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3411 "ConcurrentMarkSweep thread runs at critical scheduling priority")\ |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3412 \ |
| 0 | 3413 /* compiler debugging */ \ |
| 3414 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
| 3415 "First class to consider when using +CompileTheWorld") \ | |
| 3416 \ | |
| 3417 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
| 3418 "Last class to consider when using +CompileTheWorld") \ | |
| 3419 \ | |
| 3420 develop(intx, NewCodeParameter, 0, \ | |
| 3421 "Testing Only: Create a dedicated integer parameter before " \ | |
| 3422 "putback") \ | |
| 3423 \ | |
| 3424 /* new oopmap storage allocation */ \ | |
| 3425 develop(intx, MinOopMapAllocation, 8, \ | |
| 3426 "Minimum number of OopMap entries in an OopMapSet") \ | |
| 3427 \ | |
| 3428 /* Background Compilation */ \ | |
| 3429 develop(intx, LongCompileThreshold, 50, \ | |
| 3430 "Used with +TraceLongCompiles") \ | |
| 3431 \ | |
| 3432 product(intx, StarvationMonitorInterval, 200, \ | |
| 3433 "Pause between each check in ms") \ | |
| 3434 \ | |
| 3435 /* recompilation */ \ | |
| 3436 product_pd(intx, CompileThreshold, \ | |
| 3437 "number of interpreted method invocations before (re-)compiling") \ | |
| 3438 \ | |
| 3439 product_pd(intx, BackEdgeThreshold, \ | |
| 3440 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
| 3441 \ | |
| 1783 | 3442 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
| 3443 "Interpreter (tier 0) invocation notification frequency.") \ | |
| 3444 \ | |
| 3445 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
| 3446 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
| 3447 \ | |
| 3448 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
| 3449 "C1 with MDO profiling (tier 3) invocation notification " \ | |
| 3450 "frequency.") \ | |
| 3451 \ | |
|
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3452 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
|
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3453 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
|
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3454 \ |
| 1783 | 3455 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
| 3456 "Interpreter (tier 0) invocation notification frequency.") \ | |
| 3457 \ | |
| 3458 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
| 3459 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
| 3460 \ | |
| 3461 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
| 3462 "C1 with MDO profiling (tier 3) invocation notification " \ | |
| 3463 "frequency.") \ | |
| 3464 \ | |
| 3465 product(intx, Tier2CompileThreshold, 0, \ | |
| 3466 "threshold at which tier 2 compilation is invoked") \ | |
| 3467 \ | |
| 3468 product(intx, Tier2BackEdgeThreshold, 0, \ | |
| 3469 "Back edge threshold at which tier 2 compilation is invoked") \ | |
| 3470 \ | |
| 3471 product(intx, Tier3InvocationThreshold, 200, \ | |
| 3472 "Compile if number of method invocations crosses this " \ | |
| 3473 "threshold") \ | |
| 3474 \ | |
| 3475 product(intx, Tier3MinInvocationThreshold, 100, \ | |
| 3476 "Minimum invocation to compile at tier 3") \ | |
| 3477 \ | |
| 3478 product(intx, Tier3CompileThreshold, 2000, \ | |
| 3479 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
| 3480 "minimum must be satisfied.") \ | |
| 3481 \ | |
| 4819 | 3482 product(intx, Tier3BackEdgeThreshold, 60000, \ |
| 1783 | 3483 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
| 3484 \ | |
| 3485 product(intx, Tier4InvocationThreshold, 5000, \ | |
| 3486 "Compile if number of method invocations crosses this " \ | |
| 3487 "threshold") \ | |
| 3488 \ | |
| 3489 product(intx, Tier4MinInvocationThreshold, 600, \ | |
| 3490 "Minimum invocation to compile at tier 4") \ | |
| 3491 \ | |
| 3492 product(intx, Tier4CompileThreshold, 15000, \ | |
| 3493 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
| 3494 "minimum must be satisfied.") \ | |
| 3495 \ | |
| 3496 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
| 3497 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
| 3498 \ | |
| 3499 product(intx, Tier3DelayOn, 5, \ | |
| 3500 "If C2 queue size grows over this amount per compiler thread " \ | |
| 3501 "stop compiling at tier 3 and start compiling at tier 2") \ | |
| 3502 \ | |
| 3503 product(intx, Tier3DelayOff, 2, \ | |
| 3504 "If C2 queue size is less than this amount per compiler thread " \ | |
| 3505 "allow methods compiled at tier 2 transition to tier 3") \ | |
| 3506 \ | |
| 3507 product(intx, Tier3LoadFeedback, 5, \ | |
| 3508 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
| 3509 "reaches this amount per compiler thread") \ | |
| 3510 \ | |
| 3511 product(intx, Tier4LoadFeedback, 3, \ | |
| 3512 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
| 3513 "reaches this amount per compiler thread") \ | |
| 3514 \ | |
| 3515 product(intx, TieredCompileTaskTimeout, 50, \ | |
| 3516 "Kill compile task if method was not used within " \ | |
| 3517 "given timeout in milliseconds") \ | |
| 3518 \ | |
| 3519 product(intx, TieredStopAtLevel, 4, \ | |
| 3520 "Stop at given compilation level") \ | |
| 3521 \ | |
| 3522 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
| 3523 "Start profiling in interpreter if the counters exceed tier 3" \ | |
| 3524 "thresholds by the specified percentage") \ | |
| 3525 \ | |
|
10319
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3526 product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \ |
|
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3527 "Increase the compile threshold for C1 compilation if the code" \ |
|
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3528 "cache is filled by the specified percentage.") \ |
|
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3529 \ |
| 1783 | 3530 product(intx, TieredRateUpdateMinTime, 1, \ |
| 3531 "Minimum rate sampling interval (in milliseconds)") \ | |
| 3532 \ | |
| 3533 product(intx, TieredRateUpdateMaxTime, 25, \ | |
| 3534 "Maximum rate sampling interval (in milliseconds)") \ | |
| 0 | 3535 \ |
| 3536 product_pd(bool, TieredCompilation, \ | |
| 1783 | 3537 "Enable tiered compilation") \ |
| 3538 \ | |
| 3539 product(bool, PrintTieredEvents, false, \ | |
| 3540 "Print tiered events notifications") \ | |
| 0 | 3541 \ |
| 3542 product_pd(intx, OnStackReplacePercentage, \ | |
| 3543 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
| 3544 "of CompileThreshold) before (re-)compiling OSR code") \ | |
| 3545 \ | |
| 3546 product(intx, InterpreterProfilePercentage, 33, \ | |
| 3547 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
| 3548 "of CompileThreshold) before profiling in the interpreter") \ | |
| 3549 \ | |
| 3550 develop(intx, MaxRecompilationSearchLength, 10, \ | |
| 3551 "max. # frames to inspect searching for recompilee") \ | |
| 3552 \ | |
| 3553 develop(intx, MaxInterpretedSearchLength, 3, \ | |
| 3554 "max. # interp. frames to skip when searching for recompilee") \ | |
| 3555 \ | |
| 3556 develop(intx, DesiredMethodLimit, 8000, \ | |
| 3557 "desired max. method size (in bytecodes) after inlining") \ | |
| 3558 \ | |
| 3559 develop(intx, HugeMethodLimit, 8000, \ | |
| 3560 "don't compile methods larger than this if " \ | |
| 3561 "+DontCompileHugeMethods") \ | |
| 3562 \ | |
| 3563 /* New JDK 1.4 reflection implementation */ \ | |
| 3564 \ | |
| 3565 develop(bool, UseNewReflection, true, \ | |
| 3566 "Temporary flag for transition to reflection based on dynamic " \ | |
| 3567 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
| 3568 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
| 3569 "changes were needed") \ | |
| 3570 \ | |
| 3571 develop(bool, VerifyReflectionBytecodes, false, \ | |
| 3572 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
| 3573 "in situations like that described in 4486457 or for " \ | |
| 3574 "constructors generated for serialization, so can not be enabled "\ | |
| 3575 "in product.") \ | |
| 3576 \ | |
| 3577 product(bool, ReflectionWrapResolutionErrors, true, \ | |
| 3578 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
| 3579 "in InvocationTargetException. See 6531596") \ | |
| 3580 \ | |
|
12154
3a1df0dce3e5
8023872: Verification error in generated lambda classes
acorn
parents:
12132
diff
changeset
|
3581 develop(bool, VerifyLambdaBytecodes, false, \ |
|
3a1df0dce3e5
8023872: Verification error in generated lambda classes
acorn
parents:
12132
diff
changeset
|
3582 "Force verification of jdk 8 lambda metafactory bytecodes.") \ |
| 0 | 3583 \ |
| 3584 develop(intx, FastSuperclassLimit, 8, \ | |
| 3585 "Depth of hardwired instanceof accelerator array") \ | |
| 3586 \ | |
| 3587 /* Properties for Java libraries */ \ | |
| 3588 \ | |
|
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6197
diff
changeset
|
3589 product(uintx, MaxDirectMemorySize, 0, \ |
| 0 | 3590 "Maximum total size of NIO direct-buffer allocations") \ |
| 3591 \ | |
| 3592 /* temporary developer defined flags */ \ | |
| 3593 \ | |
| 3594 diagnostic(bool, UseNewCode, false, \ | |
| 3595 "Testing Only: Use the new version while testing") \ | |
| 3596 \ | |
| 3597 diagnostic(bool, UseNewCode2, false, \ | |
| 3598 "Testing Only: Use the new version while testing") \ | |
| 3599 \ | |
| 3600 diagnostic(bool, UseNewCode3, false, \ | |
| 3601 "Testing Only: Use the new version while testing") \ | |
| 3602 \ | |
| 3603 /* flags for performance data collection */ \ | |
| 3604 \ | |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3605 product(bool, UsePerfData, falseInEmbedded, \ |
| 0 | 3606 "Flag to disable jvmstat instrumentation for performance testing" \ |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3607 "and problem isolation purposes.") \ |
| 0 | 3608 \ |
| 3609 product(bool, PerfDataSaveToFile, false, \ | |
| 3610 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
| 3611 \ | |
| 3612 product(ccstr, PerfDataSaveFile, NULL, \ | |
| 3613 "Save PerfData memory to the specified absolute pathname," \ | |
| 3614 "%p in the file name if present will be replaced by pid") \ | |
| 3615 \ | |
| 3616 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
| 3617 "Data sampling interval in milliseconds") \ | |
| 3618 \ | |
| 3619 develop(bool, PerfTraceDataCreation, false, \ | |
| 3620 "Trace creation of Performance Data Entries") \ | |
| 3621 \ | |
| 3622 develop(bool, PerfTraceMemOps, false, \ | |
| 3623 "Trace PerfMemory create/attach/detach calls") \ | |
| 3624 \ | |
| 3625 product(bool, PerfDisableSharedMem, false, \ | |
| 3626 "Store performance data in standard memory") \ | |
| 3627 \ | |
| 3628 product(intx, PerfDataMemorySize, 32*K, \ | |
| 3629 "Size of performance data memory region. Will be rounded " \ | |
| 3630 "up to a multiple of the native os page size.") \ | |
| 3631 \ | |
| 3632 product(intx, PerfMaxStringConstLength, 1024, \ | |
| 3633 "Maximum PerfStringConstant string length before truncation") \ | |
| 3634 \ | |
| 3635 product(bool, PerfAllowAtExitRegistration, false, \ | |
| 3636 "Allow registration of atexit() methods") \ | |
| 3637 \ | |
| 3638 product(bool, PerfBypassFileSystemCheck, false, \ | |
| 3639 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
| 3640 \ | |
| 3641 product(intx, UnguardOnExecutionViolation, 0, \ | |
| 3642 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
| 3643 "0=off, 1=conservative, 2=aggressive") \ | |
| 3644 \ | |
| 3645 /* Serviceability Support */ \ | |
| 3646 \ | |
| 3647 product(bool, ManagementServer, false, \ | |
| 3648 "Create JMX Management Server") \ | |
| 3649 \ | |
| 3650 product(bool, DisableAttachMechanism, false, \ | |
| 3651 "Disable mechanism that allows tools to attach to this VM") \ | |
| 3652 \ | |
| 3653 product(bool, StartAttachListener, false, \ | |
| 3654 "Always start Attach Listener at VM startup") \ | |
| 3655 \ | |
| 3656 manageable(bool, PrintConcurrentLocks, false, \ | |
| 3657 "Print java.util.concurrent locks in thread dump") \ | |
| 3658 \ | |
|
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3659 product(bool, TransmitErrorReport, false, \ |
|
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3660 "Enable error report transmission on erroneous termination") \ |
|
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3661 \ |
|
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3662 product(ccstr, ErrorReportServer, NULL, \ |
|
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3663 "Override built-in error report server address") \ |
|
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3664 \ |
| 0 | 3665 /* Shared spaces */ \ |
| 3666 \ | |
| 3667 product(bool, UseSharedSpaces, true, \ | |
|
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3668 "Use shared spaces for metadata") \ |
| 0 | 3669 \ |
| 3670 product(bool, RequireSharedSpaces, false, \ | |
|
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3671 "Require shared spaces for metadata") \ |
| 0 | 3672 \ |
| 3673 product(bool, DumpSharedSpaces, false, \ | |
| 3674 "Special mode: JVM reads a class list, loads classes, builds " \ | |
| 3675 "shared spaces, and dumps the shared spaces to a file to be " \ | |
| 3676 "used in future JVM runs.") \ | |
| 3677 \ | |
| 3678 product(bool, PrintSharedSpaces, false, \ | |
| 3679 "Print usage of shared spaces") \ | |
| 3680 \ | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3681 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(16*M), \ |
|
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3682 "Size of read-write space for metadata (in bytes)") \ |
| 0 | 3683 \ |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3684 product(uintx, SharedReadOnlySize, NOT_LP64(12*M) LP64_ONLY(16*M), \ |
|
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3685 "Size of read-only space for metadata (in bytes)") \ |
| 0 | 3686 \ |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3687 product(uintx, SharedMiscDataSize, NOT_LP64(2*M) LP64_ONLY(4*M), \ |
|
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3688 "Size of the shared miscellaneous data area (in bytes)") \ |
| 0 | 3689 \ |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3690 product(uintx, SharedMiscCodeSize, 120*K, \ |
|
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3691 "Size of the shared miscellaneous code area (in bytes)") \ |
| 0 | 3692 \ |
|
8804
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3693 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \ |
|
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3694 NOT_LP64(LINUX_ONLY(2*G) NOT_LINUX(0)), \ |
|
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3695 "Address to allocate shared memory region for class data") \ |
| 0 | 3696 \ |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3697 diagnostic(bool, EnableInvokeDynamic, true, \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3698 "support JSR 292 (method handles, invokedynamic, " \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3699 "anonymous classes") \ |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3700 \ |
|
3449
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3701 diagnostic(bool, PrintMethodHandleStubs, false, \ |
|
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3702 "Print generated stub code for method handles") \ |
|
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3703 \ |
| 710 | 3704 develop(bool, TraceMethodHandles, false, \ |
| 3705 "trace internal method handle operations") \ | |
| 3706 \ | |
| 3707 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
| 3708 "perform extra checks when constructing method handles") \ | |
| 3709 \ | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3710 diagnostic(bool, ShowHiddenFrames, false, \ |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3711 "show method handle implementation frames (usually hidden)") \ |
|
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3712 \ |
|
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3713 experimental(bool, TrustFinalNonStaticFields, false, \ |
|
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3714 "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
|
3715 \ |
|
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3716 experimental(bool, FoldStableValues, false, \ |
|
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3717 "Private flag to control optimizations for stable variables") \ |
|
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3718 \ |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3719 develop(bool, TraceInvokeDynamic, false, \ |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3720 "trace internal invoke dynamic operations") \ |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3721 \ |
| 0 | 3722 diagnostic(bool, PauseAtStartup, false, \ |
| 3723 "Causes the VM to pause at startup time and wait for the pause " \ | |
| 3724 "file to be removed (default: ./vm.paused.<pid>)") \ | |
| 3725 \ | |
| 3726 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
| 3727 "The file to create and for whose removal to await when pausing " \ | |
| 3728 "at startup. (default: ./vm.paused.<pid>)") \ | |
| 3729 \ | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3730 diagnostic(bool, PauseAtExit, false, \ |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3731 "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
|
3732 \ |
| 0 | 3733 product(bool, ExtendedDTraceProbes, false, \ |
| 3734 "Enable performance-impacting dtrace probes") \ | |
| 3735 \ | |
| 3736 product(bool, DTraceMethodProbes, false, \ | |
| 3737 "Enable dtrace probes for method-entry and method-exit") \ | |
| 3738 \ | |
| 3739 product(bool, DTraceAllocProbes, false, \ | |
| 3740 "Enable dtrace probes for object allocation") \ | |
| 3741 \ | |
| 3742 product(bool, DTraceMonitorProbes, false, \ | |
| 3743 "Enable dtrace probes for monitor events") \ | |
| 3744 \ | |
| 3745 product(bool, RelaxAccessControlCheck, false, \ | |
| 3746 "Relax the access control checks in the verifier") \ | |
| 3747 \ | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3748 diagnostic(bool, PrintDTraceDOF, false, \ |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3749 "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
|
3750 \ |
|
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6935
diff
changeset
|
3751 product(uintx, StringTableSize, defaultStringTableSize, \ |
| 2378 | 3752 "Number of buckets in the interned String table") \ |
| 3753 \ | |
| 6934 | 3754 develop(bool, TraceDefaultMethods, false, \ |
| 3755 "Trace the default method processing steps") \ | |
| 3756 \ | |
| 3757 develop(bool, VerifyGenericSignatures, false, \ | |
| 3758 "Abort VM on erroneous or inconsistent generic signatures") \ | |
| 3759 \ | |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3760 product(bool, UseVMInterruptibleIO, false, \ |
| 0 | 3761 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3762 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
| 5915 | 3763 " of this flag is true for JDK 6 and earlier") \ |
| 3764 \ | |
| 3765 diagnostic(bool, WhiteBoxAPI, false, \ | |
|
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3766 "Enable internal testing APIs") \ |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3767 \ |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3768 product(bool, PrintGCCause, true, \ |
| 8702 | 3769 "Include GC cause in GC logging") \ |
| 3770 \ | |
|
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3771 product(bool , AllowNonVirtualCalls, false, \ |
|
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3772 "Obey the ACC_SUPER flag and allow invokenonvirtual calls") \ |
|
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3773 \ |
|
11596
91e5f927af63
Initial implementation of PTXRuntime (RegisterConfig, PTX description etc); guarded with new flag UseGPU. Specify -XX:+UseGPU to exercise this new implementation.
bharadwaj
parents:
11173
diff
changeset
|
3774 product(bool, TraceGPUInteraction, false, \ |
|
91e5f927af63
Initial implementation of PTXRuntime (RegisterConfig, PTX description etc); guarded with new flag UseGPU. Specify -XX:+UseGPU to exercise this new implementation.
bharadwaj
parents:
11173
diff
changeset
|
3775 "Trace external GPU Interaction") \ |
|
91e5f927af63
Initial implementation of PTXRuntime (RegisterConfig, PTX description etc); guarded with new flag UseGPU. Specify -XX:+UseGPU to exercise this new implementation.
bharadwaj
parents:
11173
diff
changeset
|
3776 \ |
|
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3777 diagnostic(ccstr, SharedArchiveFile, NULL, \ |
|
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3778 "Override the default location of the CDS archive file") \ |
|
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3779 \ |
|
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3780 experimental(uintx, ArrayAllocatorMallocLimit, \ |
|
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3781 SOLARIS_ONLY(64*K) NOT_SOLARIS(max_uintx), \ |
|
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3782 "Allocation less than this value will be allocated " \ |
| 10405 | 3783 "using malloc. Larger allocations will use mmap.") \ |
| 3784 \ | |
| 3785 product(bool, EnableTracing, false, \ | |
| 3786 "Enable event-based tracing") \ | |
| 3787 product(bool, UseLockedTracing, false, \ | |
| 3788 "Use locked-tracing when doing event-based tracing") | |
| 3789 | |
| 0 | 3790 |
| 3791 /* | |
| 3792 * Macros for factoring of globals | |
| 3793 */ | |
| 3794 | |
| 3795 // Interface macros | |
|
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3796 #define DECLARE_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3797 #define DECLARE_PD_PRODUCT_FLAG(type, name, doc) extern "C" type name; |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3798 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; |
|
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3799 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
|
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3800 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3801 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; |
| 0 | 3802 #ifdef PRODUCT |
|
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3803 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type CONST_##name; const type name = value; |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3804 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type CONST_##name; const type name = pd_##name; |
|
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3805 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type CONST_##name; |
| 0 | 3806 #else |
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3807 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; |
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3808 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; |
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3809 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
| 0 | 3810 #endif |
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3811 // Special LP64 flags, product only needed for now. |
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3812 #ifdef _LP64 |
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3813 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
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3814 #else |
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3815 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
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3816 #endif // _LP64 |
| 0 | 3817 |
| 3818 // Implementation macros | |
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3819 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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3820 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; |
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3821 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; |
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3822 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
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3823 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
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3824 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; |
| 0 | 3825 #ifdef PRODUCT |
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3826 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type CONST_##name = value; |
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3827 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type CONST_##name = pd_##name; |
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3828 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type CONST_##name = value; |
| 0 | 3829 #else |
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3830 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; |
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3831 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; |
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3832 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; |
| 0 | 3833 #endif |
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3834 #ifdef _LP64 |
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3835 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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3836 #else |
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3837 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
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3838 #endif // _LP64 |
| 0 | 3839 |
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3840 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 | 3841 |
| 3842 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
| 1972 | 3843 |
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3844 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) |
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3845 |
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3846 // Extensions |
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3847 |
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3848 #include "runtime/globals_ext.hpp" |
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3849 |
| 1972 | 3850 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |