Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.hpp @ 14756:3e1e83287128
add assertion to detect infinite recursion in snippet inlining
author | Erik Eckstein <erik.eckstein@oracle.com> |
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date | Wed, 26 Mar 2014 10:08:31 +0100 |
parents | 92aa6797d639 |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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 | |
14411 | 64 #ifdef TARGET_OS_FAMILY_aix |
65 # include "globals_aix.hpp" | |
66 #endif | |
3960 | 67 #ifdef TARGET_OS_FAMILY_bsd |
68 # include "globals_bsd.hpp" | |
69 #endif | |
1972 | 70 #ifdef TARGET_OS_ARCH_linux_x86 |
71 # include "globals_linux_x86.hpp" | |
72 #endif | |
73 #ifdef TARGET_OS_ARCH_linux_sparc | |
74 # include "globals_linux_sparc.hpp" | |
75 #endif | |
76 #ifdef TARGET_OS_ARCH_linux_zero | |
77 # include "globals_linux_zero.hpp" | |
78 #endif | |
79 #ifdef TARGET_OS_ARCH_solaris_x86 | |
80 # include "globals_solaris_x86.hpp" | |
81 #endif | |
82 #ifdef TARGET_OS_ARCH_solaris_sparc | |
83 # include "globals_solaris_sparc.hpp" | |
84 #endif | |
85 #ifdef TARGET_OS_ARCH_windows_x86 | |
86 # include "globals_windows_x86.hpp" | |
87 #endif | |
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88 #ifdef TARGET_OS_ARCH_linux_arm |
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89 # include "globals_linux_arm.hpp" |
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90 #endif |
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91 #ifdef TARGET_OS_ARCH_linux_ppc |
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92 # include "globals_linux_ppc.hpp" |
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93 #endif |
14411 | 94 #ifdef TARGET_OS_ARCH_aix_ppc |
95 # include "globals_aix_ppc.hpp" | |
96 #endif | |
3960 | 97 #ifdef TARGET_OS_ARCH_bsd_x86 |
98 # include "globals_bsd_x86.hpp" | |
99 #endif | |
100 #ifdef TARGET_OS_ARCH_bsd_zero | |
101 # include "globals_bsd_zero.hpp" | |
102 #endif | |
1972 | 103 #ifdef COMPILER1 |
104 #ifdef TARGET_ARCH_x86 | |
105 # include "c1_globals_x86.hpp" | |
106 #endif | |
107 #ifdef TARGET_ARCH_sparc | |
108 # include "c1_globals_sparc.hpp" | |
109 #endif | |
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110 #ifdef TARGET_ARCH_arm |
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111 # include "c1_globals_arm.hpp" |
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112 #endif |
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113 #ifdef TARGET_ARCH_ppc |
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114 # include "c1_globals_ppc.hpp" |
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115 #endif |
1972 | 116 #ifdef TARGET_OS_FAMILY_linux |
117 # include "c1_globals_linux.hpp" | |
118 #endif | |
119 #ifdef TARGET_OS_FAMILY_solaris | |
120 # include "c1_globals_solaris.hpp" | |
121 #endif | |
122 #ifdef TARGET_OS_FAMILY_windows | |
123 # include "c1_globals_windows.hpp" | |
124 #endif | |
14411 | 125 #ifdef TARGET_OS_FAMILY_aix |
126 # include "c1_globals_aix.hpp" | |
127 #endif | |
3960 | 128 #ifdef TARGET_OS_FAMILY_bsd |
129 # include "c1_globals_bsd.hpp" | |
130 #endif | |
1972 | 131 #endif |
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132 #ifdef COMPILERGRAAL |
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133 #ifdef TARGET_ARCH_x86 |
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134 # include "graalGlobals_x86.hpp" |
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135 #endif |
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136 #ifdef TARGET_ARCH_sparc |
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137 # include "graalGlobals_sparc.hpp" |
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138 #endif |
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139 #ifdef TARGET_ARCH_arm |
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140 # include "graalGlobals_arm.hpp" |
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141 #endif |
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142 #ifdef TARGET_ARCH_ppc |
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143 # include "graalGlobals_ppc.hpp" |
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144 #endif |
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145 #endif // COMPILERGRAAL |
1972 | 146 #ifdef COMPILER2 |
147 #ifdef TARGET_ARCH_x86 | |
148 # include "c2_globals_x86.hpp" | |
149 #endif | |
150 #ifdef TARGET_ARCH_sparc | |
151 # include "c2_globals_sparc.hpp" | |
152 #endif | |
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153 #ifdef TARGET_ARCH_arm |
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154 # include "c2_globals_arm.hpp" |
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155 #endif |
14411 | 156 #ifdef TARGET_ARCH_ppc |
157 # include "c2_globals_ppc.hpp" | |
158 #endif | |
1972 | 159 #ifdef TARGET_OS_FAMILY_linux |
160 # include "c2_globals_linux.hpp" | |
161 #endif | |
162 #ifdef TARGET_OS_FAMILY_solaris | |
163 # include "c2_globals_solaris.hpp" | |
164 #endif | |
165 #ifdef TARGET_OS_FAMILY_windows | |
166 # include "c2_globals_windows.hpp" | |
167 #endif | |
14411 | 168 #ifdef TARGET_OS_FAMILY_aix |
169 # include "c2_globals_aix.hpp" | |
170 #endif | |
3960 | 171 #ifdef TARGET_OS_FAMILY_bsd |
172 # include "c2_globals_bsd.hpp" | |
173 #endif | |
1972 | 174 #endif |
175 #ifdef SHARK | |
176 #ifdef TARGET_ARCH_zero | |
177 # include "shark_globals_zero.hpp" | |
178 #endif | |
179 #endif | |
180 | |
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181 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) && !defined(COMPILERGRAAL) |
0 | 182 define_pd_global(bool, BackgroundCompilation, false); |
183 define_pd_global(bool, UseTLAB, false); | |
184 define_pd_global(bool, CICompileOSR, false); | |
185 define_pd_global(bool, UseTypeProfile, false); | |
186 define_pd_global(bool, UseOnStackReplacement, false); | |
187 define_pd_global(bool, InlineIntrinsics, false); | |
188 define_pd_global(bool, PreferInterpreterNativeStubs, true); | |
189 define_pd_global(bool, ProfileInterpreter, false); | |
190 define_pd_global(bool, ProfileTraps, false); | |
191 define_pd_global(bool, TieredCompilation, false); | |
192 | |
193 define_pd_global(intx, CompileThreshold, 0); | |
194 define_pd_global(intx, BackEdgeThreshold, 0); | |
195 | |
196 define_pd_global(intx, OnStackReplacePercentage, 0); | |
197 define_pd_global(bool, ResizeTLAB, false); | |
198 define_pd_global(intx, FreqInlineSize, 0); | |
199 define_pd_global(intx, NewSizeThreadIncrease, 4*K); | |
200 define_pd_global(intx, InlineClassNatives, true); | |
201 define_pd_global(intx, InlineUnsafeOps, true); | |
202 define_pd_global(intx, InitialCodeCacheSize, 160*K); | |
203 define_pd_global(intx, ReservedCodeCacheSize, 32*M); | |
204 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
205 define_pd_global(intx, CodeCacheMinBlockLength, 1); | |
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206 define_pd_global(intx, CodeCacheMinimumUseSpace, 200*K); |
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207 define_pd_global(uintx,MetaspaceSize, ScaleForWordSize(4*M)); |
0 | 208 define_pd_global(bool, NeverActAsServerClassMachine, true); |
1064 | 209 define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
0 | 210 #define CI_COMPILER_COUNT 0 |
211 #else | |
212 | |
213 #ifdef COMPILER2 | |
214 #define CI_COMPILER_COUNT 2 | |
215 #else | |
216 #define CI_COMPILER_COUNT 1 | |
217 #endif // COMPILER2 | |
218 | |
219 #endif // no compilers | |
220 | |
221 // string type aliases used only in this file | |
222 typedef const char* ccstr; | |
223 typedef const char* ccstrlist; // represents string arguments which accumulate | |
224 | |
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225 struct Flag { |
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226 enum Flags { |
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227 // value origin |
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228 DEFAULT = 0, |
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229 COMMAND_LINE = 1, |
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230 ENVIRON_VAR = 2, |
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231 CONFIG_FILE = 3, |
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232 MANAGEMENT = 4, |
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233 ERGONOMIC = 5, |
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234 ATTACH_ON_DEMAND = 6, |
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235 INTERNAL = 7, |
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236 |
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237 LAST_VALUE_ORIGIN = INTERNAL, |
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238 VALUE_ORIGIN_BITS = 4, |
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239 VALUE_ORIGIN_MASK = right_n_bits(VALUE_ORIGIN_BITS), |
0 | 240 |
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241 // flag kind |
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242 KIND_PRODUCT = 1 << 4, |
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243 KIND_MANAGEABLE = 1 << 5, |
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244 KIND_DIAGNOSTIC = 1 << 6, |
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245 KIND_EXPERIMENTAL = 1 << 7, |
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246 KIND_NOT_PRODUCT = 1 << 8, |
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247 KIND_DEVELOP = 1 << 9, |
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248 KIND_PLATFORM_DEPENDENT = 1 << 10, |
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249 KIND_READ_WRITE = 1 << 11, |
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250 KIND_C1 = 1 << 12, |
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251 KIND_C2 = 1 << 13, |
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252 KIND_ARCH = 1 << 14, |
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253 KIND_SHARK = 1 << 15, |
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254 KIND_LP64_PRODUCT = 1 << 16, |
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255 KIND_COMMERCIAL = 1 << 17, |
12355 | 256 KIND_GRAAL = 1 << 18, |
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257 |
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258 KIND_MASK = ~VALUE_ORIGIN_MASK |
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259 }; |
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260 |
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261 const char* _type; |
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262 const char* _name; |
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263 void* _addr; |
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264 NOT_PRODUCT(const char* _doc;) |
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265 Flags _flags; |
0 | 266 |
267 // points to all Flags static array | |
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268 static Flag* flags; |
0 | 269 |
270 // number of flags | |
271 static size_t numFlags; | |
272 | |
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273 static Flag* find_flag(const char* name, size_t length, bool allow_locked = false, bool return_flag = false); |
11070 | 274 static Flag* fuzzy_match(const char* name, size_t length, bool allow_locked = false); |
0 | 275 |
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276 void check_writable(); |
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277 |
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278 bool is_bool() const; |
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279 bool get_bool() const; |
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280 void set_bool(bool value); |
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281 |
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282 bool is_intx() const; |
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283 intx get_intx() const; |
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284 void set_intx(intx value); |
0 | 285 |
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286 bool is_uintx() const; |
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287 uintx get_uintx() const; |
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288 void set_uintx(uintx value); |
0 | 289 |
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290 bool is_uint64_t() const; |
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291 uint64_t get_uint64_t() const; |
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292 void set_uint64_t(uint64_t value); |
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293 |
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294 bool is_double() const; |
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295 double get_double() const; |
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296 void set_double(double value); |
0 | 297 |
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298 bool is_ccstr() const; |
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299 bool ccstr_accumulates() const; |
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300 ccstr get_ccstr() const; |
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301 void set_ccstr(ccstr value); |
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302 |
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303 Flags get_origin(); |
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304 void set_origin(Flags origin); |
1064 | 305 |
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306 bool is_default(); |
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307 bool is_ergonomic(); |
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308 bool is_command_line(); |
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310 bool is_product() const; |
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311 bool is_manageable() const; |
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312 bool is_diagnostic() const; |
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313 bool is_experimental() const; |
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314 bool is_notproduct() const; |
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315 bool is_develop() const; |
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316 bool is_read_write() const; |
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317 bool is_commercial() const; |
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318 |
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319 bool is_constant_in_binary() const; |
0 | 320 |
321 bool is_unlocker() const; | |
322 bool is_unlocked() const; | |
323 bool is_writeable() const; | |
324 bool is_external() const; | |
325 | |
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326 bool is_unlocker_ext() const; |
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327 bool is_unlocked_ext() const; |
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328 bool is_writeable_ext() const; |
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329 bool is_external_ext() const; |
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330 |
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331 void get_locked_message(char*, int) const; |
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332 void get_locked_message_ext(char*, int) const; |
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333 |
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334 void print_on(outputStream* st, bool withComments = false ); |
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335 void print_kind(outputStream* st); |
0 | 336 void print_as_flag(outputStream* st); |
337 }; | |
338 | |
339 // debug flags control various aspects of the VM and are global accessible | |
340 | |
341 // use FlagSetting to temporarily change some debug flag | |
342 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
343 // restored to previous value upon leaving scope | |
344 class FlagSetting { | |
345 bool val; | |
346 bool* flag; | |
347 public: | |
348 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
349 ~FlagSetting() { *flag = val; } | |
350 }; | |
351 | |
352 | |
353 class CounterSetting { | |
354 intx* counter; | |
355 public: | |
356 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
357 ~CounterSetting() { (*counter)--; } | |
358 }; | |
359 | |
360 | |
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361 class UIntFlagSetting { |
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362 uintx val; |
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363 uintx* flag; |
0 | 364 public: |
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365 UIntFlagSetting(uintx& fl, uintx newValue) { flag = &fl; val = fl; fl = newValue; } |
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366 ~UIntFlagSetting() { *flag = val; } |
0 | 367 }; |
368 | |
369 | |
370 class DoubleFlagSetting { | |
371 double val; | |
372 double* flag; | |
373 public: | |
374 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
375 ~DoubleFlagSetting() { *flag = val; } | |
376 }; | |
377 | |
378 | |
379 class CommandLineFlags { | |
380 public: | |
381 static bool boolAt(char* name, size_t len, bool* value); | |
382 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
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383 static bool boolAtPut(char* name, size_t len, bool* value, Flag::Flags origin); |
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384 static bool boolAtPut(char* name, bool* value, Flag::Flags origin) { return boolAtPut(name, strlen(name), value, origin); } |
0 | 385 |
386 static bool intxAt(char* name, size_t len, intx* value); | |
387 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
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388 static bool intxAtPut(char* name, size_t len, intx* value, Flag::Flags origin); |
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389 static bool intxAtPut(char* name, intx* value, Flag::Flags origin) { return intxAtPut(name, strlen(name), value, origin); } |
0 | 390 |
391 static bool uintxAt(char* name, size_t len, uintx* value); | |
392 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
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393 static bool uintxAtPut(char* name, size_t len, uintx* value, Flag::Flags origin); |
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394 static bool uintxAtPut(char* name, uintx* value, Flag::Flags origin) { return uintxAtPut(name, strlen(name), value, origin); } |
0 | 395 |
1064 | 396 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
397 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
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398 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, Flag::Flags origin); |
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399 static bool uint64_tAtPut(char* name, uint64_t* value, Flag::Flags origin) { return uint64_tAtPut(name, strlen(name), value, origin); } |
1064 | 400 |
0 | 401 static bool doubleAt(char* name, size_t len, double* value); |
402 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
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403 static bool doubleAtPut(char* name, size_t len, double* value, Flag::Flags origin); |
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404 static bool doubleAtPut(char* name, double* value, Flag::Flags origin) { return doubleAtPut(name, strlen(name), value, origin); } |
0 | 405 |
406 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
407 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
14183 | 408 // Contract: Flag will make private copy of the incoming value. |
409 // Outgoing value is always malloc-ed, and caller MUST call free. | |
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410 static bool ccstrAtPut(char* name, size_t len, ccstr* value, Flag::Flags origin); |
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411 static bool ccstrAtPut(char* name, ccstr* value, Flag::Flags origin) { return ccstrAtPut(name, strlen(name), value, origin); } |
0 | 412 |
413 // Returns false if name is not a command line flag. | |
414 static bool wasSetOnCmdline(const char* name, bool* value); | |
4773 | 415 static void printSetFlags(outputStream* out); |
0 | 416 |
4773 | 417 static void printFlags(outputStream* out, bool withComments); |
0 | 418 |
419 static void verify() PRODUCT_RETURN; | |
420 }; | |
421 | |
422 // use this for flags that are true by default in the debug version but | |
423 // false in the optimized version, and vice versa | |
424 #ifdef ASSERT | |
425 #define trueInDebug true | |
426 #define falseInDebug false | |
427 #else | |
428 #define trueInDebug false | |
429 #define falseInDebug true | |
430 #endif | |
431 | |
432 // use this for flags that are true per default in the product build | |
433 // but false in development builds, and vice versa | |
434 #ifdef PRODUCT | |
435 #define trueInProduct true | |
436 #define falseInProduct false | |
437 #else | |
438 #define trueInProduct false | |
439 #define falseInProduct true | |
440 #endif | |
441 | |
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442 #ifdef JAVASE_EMBEDDED |
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443 #define falseInEmbedded false |
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444 #else |
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445 #define falseInEmbedded true |
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446 #endif |
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447 |
0 | 448 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
449 // product flags are always settable / visible | |
450 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
451 | |
452 // A flag must be declared with one of the following types: | |
453 // bool, intx, uintx, ccstr. | |
454 // The type "ccstr" is an alias for "const char*" and is used | |
455 // only in this file, because the macrology requires single-token type names. | |
456 | |
457 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
458 // They are to be used for VM quality assurance or field diagnosis | |
459 // of VM bugs. They are hidden so that users will not be encouraged to | |
460 // try them as if they were VM ordinary execution options. However, they | |
461 // are available in the product version of the VM. Under instruction | |
462 // from support engineers, VM customers can turn them on to collect | |
463 // diagnostic information about VM problems. To use a VM diagnostic | |
464 // option, you must first specify +UnlockDiagnosticVMOptions. | |
465 // (This master switch also affects the behavior of -Xprintflags.) | |
350
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466 // |
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467 // experimental flags are in support of features that are not |
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468 // part of the officially supported product, but are available |
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469 // for experimenting with. They could, for example, be performance |
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470 // features that may not have undergone full or rigorous QA, but which may |
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471 // help performance in some cases and released for experimentation |
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472 // by the community of users and developers. This flag also allows one to |
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473 // be able to build a fully supported product that nonetheless also |
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474 // ships with some unsupported, lightly tested, experimental features. |
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475 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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476 // UnlockExperimentalVMOptions flag, which allows the control and |
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477 // modification of the experimental flags. |
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478 // |
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479 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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480 // and they are not supported on production loads, except under explicit |
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481 // direction from support engineers. |
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482 // |
0 | 483 // manageable flags are writeable external product flags. |
484 // They are dynamically writeable through the JDK management interface | |
485 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
486 // These flags are external exported interface (see CCC). The list of | |
487 // manageable flags can be queried programmatically through the management | |
488 // interface. | |
489 // | |
490 // A flag can be made as "manageable" only if | |
491 // - the flag is defined in a CCC as an external exported interface. | |
492 // - the VM implementation supports dynamic setting of the flag. | |
493 // This implies that the VM must *always* query the flag variable | |
494 // and not reuse state related to the flag state at any given time. | |
495 // - you want the flag to be queried programmatically by the customers. | |
496 // | |
497 // product_rw flags are writeable internal product flags. | |
498 // They are like "manageable" flags but for internal/private use. | |
499 // The list of product_rw flags are internal/private flags which | |
500 // may be changed/removed in a future release. It can be set | |
501 // through the management interface to get/set value | |
502 // when the name of flag is supplied. | |
503 // | |
504 // A flag can be made as "product_rw" only if | |
505 // - the VM implementation supports dynamic setting of the flag. | |
506 // This implies that the VM must *always* query the flag variable | |
507 // and not reuse state related to the flag state at any given time. | |
508 // | |
509 // Note that when there is a need to support develop flags to be writeable, | |
510 // it can be done in the same way as product_rw. | |
511 | |
350
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512 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
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513 \ |
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514 lp64_product(bool, UseCompressedOops, false, \ |
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515 "Use 32-bit object references in 64-bit VM. " \ |
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516 "lp64_product means flag is always constant in 32 bit VM") \ |
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517 \ |
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518 lp64_product(bool, UseCompressedClassPointers, false, \ |
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519 "Use 32-bit class pointers in 64-bit VM. " \ |
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520 "lp64_product means flag is always constant in 32 bit VM") \ |
0 | 521 \ |
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522 notproduct(bool, CheckCompressedOops, true, \ |
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523 "Generate checks in encoding/decoding code in debug VM") \ |
642
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524 \ |
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525 product_pd(uintx, HeapBaseMinAddress, \ |
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526 "OS specific low limit for heap base address") \ |
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527 \ |
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528 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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529 "Print compressed oops base address and encoding mode") \ |
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530 \ |
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531 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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532 "Default object alignment in bytes, 8 is minimum") \ |
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533 \ |
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534 product(bool, AssumeMP, false, \ |
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535 "Instruct the VM to assume multiple processors are available") \ |
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536 \ |
0 | 537 /* UseMembar is theoretically a temp flag used for memory barrier \ |
538 * removal testing. It was supposed to be removed before FCS but has \ | |
539 * been re-added (see 6401008) */ \ | |
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540 product_pd(bool, UseMembar, \ |
0 | 541 "(Unstable) Issues membars on thread state transitions") \ |
542 \ | |
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543 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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544 * that don't support it. This will be replaced by processor detection \ |
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545 * logic. \ |
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546 */ \ |
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547 product(bool, UsePPCLWSYNC, true, \ |
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548 "Use lwsync instruction if true, else use slower sync") \ |
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549 \ |
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550 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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551 "Clean the chunk pool asynchronously") \ |
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552 \ |
6818 | 553 /* Temporary: See 6948537 */ \ |
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554 experimental(bool, UseMemSetInBOT, true, \ |
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555 "(Unstable) uses memset in BOT updates in GC code") \ |
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556 \ |
0 | 557 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
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558 "Enable normal processing of flags relating to field diagnostics")\ |
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559 \ |
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560 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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561 "Enable normal processing of flags relating to experimental " \ |
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562 "features") \ |
0 | 563 \ |
564 product(bool, JavaMonitorsInStackTrace, true, \ | |
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565 "Print information about Java monitor locks when the stacks are" \ |
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566 "dumped") \ |
0 | 567 \ |
568 product_pd(bool, UseLargePages, \ | |
569 "Use large page memory") \ | |
570 \ | |
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571 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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572 "Allocate large pages individually for better affinity") \ |
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573 \ |
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574 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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575 "Fail large pages individual allocation") \ |
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576 \ |
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577 product(bool, UseLargePagesInMetaspace, false, \ |
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578 "Use large page memory in metaspace. " \ |
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579 "Only used if UseLargePages is enabled.") \ |
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580 \ |
0 | 581 develop(bool, TracePageSizes, false, \ |
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582 "Trace page size selection and usage") \ |
0 | 583 \ |
584 product(bool, UseNUMA, false, \ | |
585 "Use NUMA if available") \ | |
586 \ | |
3885 | 587 product(bool, UseNUMAInterleaving, false, \ |
588 "Interleave memory across NUMA nodes if available") \ | |
589 \ | |
590 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
591 "Granularity to use for NUMA interleaving on Windows OS") \ | |
592 \ | |
462
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593 product(bool, ForceNUMA, false, \ |
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594 "Force NUMA optimizations on single-node/UMA systems") \ |
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595 \ |
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596 product(uintx, NUMAChunkResizeWeight, 20, \ |
14358 | 597 "Percentage (0-100) used to weight the current sample when " \ |
0 | 598 "computing exponentially decaying average for " \ |
599 "AdaptiveNUMAChunkSizing") \ | |
600 \ | |
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601 product(uintx, NUMASpaceResizeRate, 1*G, \ |
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602 "Do not reallocate more than this amount per collection") \ |
0 | 603 \ |
604 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
605 "Enable adaptive chunk sizing for NUMA") \ | |
606 \ | |
607 product(bool, NUMAStats, false, \ | |
608 "Print NUMA stats in detailed heap information") \ | |
609 \ | |
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610 product(uintx, NUMAPageScanRate, 256, \ |
0 | 611 "Maximum number of pages to include in the page scan procedure") \ |
612 \ | |
613 product_pd(bool, NeedsDeoptSuspend, \ | |
614 "True for register window machines (sparc/ia64)") \ | |
615 \ | |
616 product(intx, UseSSE, 99, \ | |
617 "Highest supported SSE instructions set on x86/x64") \ | |
618 \ | |
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619 product(bool, UseAES, false, \ |
6894 | 620 "Control whether AES instructions can be used on x86/x64") \ |
621 \ | |
0 | 622 product(uintx, LargePageSizeInBytes, 0, \ |
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623 "Large page size (0 to let VM choose the page size)") \ |
0 | 624 \ |
625 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
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626 "Use large pages if maximum heap is at least this big") \ |
0 | 627 \ |
628 product(bool, ForceTimeHighResolution, false, \ | |
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629 "Using high time resolution (for Win32 only)") \ |
0 | 630 \ |
631 develop(bool, TraceItables, false, \ | |
632 "Trace initialization and use of itables") \ | |
633 \ | |
634 develop(bool, TracePcPatching, false, \ | |
635 "Trace usage of frame::patch_pc") \ | |
636 \ | |
637 develop(bool, TraceJumps, false, \ | |
638 "Trace assembly jumps in thread ring buffer") \ | |
639 \ | |
640 develop(bool, TraceRelocator, false, \ | |
641 "Trace the bytecode relocator") \ | |
642 \ | |
643 develop(bool, TraceLongCompiles, false, \ | |
644 "Print out every time compilation is longer than " \ | |
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645 "a given threshold") \ |
0 | 646 \ |
647 develop(bool, SafepointALot, false, \ | |
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648 "Generate a lot of safepoints. This works with " \ |
0 | 649 "GuaranteedSafepointInterval") \ |
650 \ | |
651 product_pd(bool, BackgroundCompilation, \ | |
652 "A thread requesting compilation is not blocked during " \ | |
653 "compilation") \ | |
654 \ | |
655 product(bool, PrintVMQWaitTime, false, \ | |
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656 "Print out the waiting time in VM operation queue") \ |
0 | 657 \ |
658 develop(bool, NoYieldsInMicrolock, false, \ | |
659 "Disable yields in microlock") \ | |
660 \ | |
661 develop(bool, TraceOopMapGeneration, false, \ | |
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662 "Show OopMapGeneration") \ |
0 | 663 \ |
664 product(bool, MethodFlushing, true, \ | |
665 "Reclamation of zombie and not-entrant methods") \ | |
666 \ | |
667 develop(bool, VerifyStack, false, \ | |
668 "Verify stack of each thread when it is entering a runtime call") \ | |
669 \ | |
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670 diagnostic(bool, ForceUnreachable, false, \ |
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671 "Make all non code cache addresses to be unreachable by " \ |
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672 "forcing use of 64bit literal fixups") \ |
0 | 673 \ |
674 notproduct(bool, StressDerivedPointers, false, \ | |
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675 "Force scavenge when a derived pointer is detected on stack " \ |
0 | 676 "after rtm call") \ |
677 \ | |
678 develop(bool, TraceDerivedPointers, false, \ | |
679 "Trace traversal of derived pointers on stack") \ | |
680 \ | |
681 notproduct(bool, TraceCodeBlobStacks, false, \ | |
682 "Trace stack-walk of codeblobs") \ | |
683 \ | |
684 product(bool, PrintJNIResolving, false, \ | |
685 "Used to implement -v:jni") \ | |
686 \ | |
687 notproduct(bool, PrintRewrites, false, \ | |
688 "Print methods that are being rewritten") \ | |
689 \ | |
690 product(bool, UseInlineCaches, true, \ | |
691 "Use Inline Caches for virtual calls ") \ | |
692 \ | |
693 develop(bool, InlineArrayCopy, true, \ | |
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694 "Inline arraycopy native that is known to be part of " \ |
0 | 695 "base library DLL") \ |
696 \ | |
697 develop(bool, InlineObjectHash, true, \ | |
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698 "Inline Object::hashCode() native that is known to be part " \ |
0 | 699 "of base library DLL") \ |
700 \ | |
701 develop(bool, InlineNatives, true, \ | |
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702 "Inline natives that are known to be part of base library DLL") \ |
0 | 703 \ |
704 develop(bool, InlineMathNatives, true, \ | |
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705 "Inline SinD, CosD, etc.") \ |
0 | 706 \ |
707 develop(bool, InlineClassNatives, true, \ | |
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708 "Inline Class.isInstance, etc") \ |
0 | 709 \ |
710 develop(bool, InlineThreadNatives, true, \ | |
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711 "Inline Thread.currentThread, etc") \ |
0 | 712 \ |
713 develop(bool, InlineUnsafeOps, true, \ | |
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714 "Inline memory ops (native methods) from sun.misc.Unsafe") \ |
0 | 715 \ |
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716 product(bool, CriticalJNINatives, true, \ |
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717 "Check for critical JNI entry points") \ |
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718 \ |
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719 notproduct(bool, StressCriticalJNINatives, false, \ |
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720 "Exercise register saving code in critical natives") \ |
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721 \ |
681 | 722 product(bool, UseSSE42Intrinsics, false, \ |
723 "SSE4.2 versions of intrinsics") \ | |
724 \ | |
6894 | 725 product(bool, UseAESIntrinsics, false, \ |
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726 "Use intrinsics for AES versions of crypto") \ |
6894 | 727 \ |
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728 product(bool, UseCRC32Intrinsics, false, \ |
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729 "use intrinsics for java.util.zip.CRC32") \ |
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730 \ |
0 | 731 develop(bool, TraceCallFixup, false, \ |
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732 "Trace all call fixups") \ |
0 | 733 \ |
734 develop(bool, DeoptimizeALot, false, \ | |
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735 "Deoptimize at every exit from the runtime system") \ |
0 | 736 \ |
434 | 737 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
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738 "A comma separated list of bcis to deoptimize at") \ |
0 | 739 \ |
740 product(bool, DeoptimizeRandom, false, \ | |
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741 "Deoptimize random frames on random exit from the runtime system")\ |
0 | 742 \ |
743 notproduct(bool, ZombieALot, false, \ | |
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744 "Create zombies (non-entrant) at exit from the runtime system") \ |
0 | 745 \ |
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746 product(bool, UnlinkSymbolsALot, false, \ |
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747 "Unlink unreferenced symbols from the symbol table at safepoints")\ |
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748 \ |
0 | 749 notproduct(bool, WalkStackALot, false, \ |
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750 "Trace stack (no print) at every exit from the runtime system") \ |
0 | 751 \ |
4006 | 752 product(bool, Debugging, false, \ |
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753 "Set when executing debug methods in debug.cpp " \ |
0 | 754 "(to prevent triggering assertions)") \ |
755 \ | |
756 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
757 "Enable strict checks that safepoints cannot happen for threads " \ | |
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758 "that use No_Safepoint_Verifier") \ |
0 | 759 \ |
760 notproduct(bool, VerifyLastFrame, false, \ | |
761 "Verify oops on last frame on entry to VM") \ | |
762 \ | |
763 develop(bool, TraceHandleAllocation, false, \ | |
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764 "Print out warnings when suspiciously many handles are allocated")\ |
0 | 765 \ |
766 product(bool, UseCompilerSafepoints, true, \ | |
767 "Stop at safepoints in compiled code") \ | |
768 \ | |
769 product(bool, FailOverToOldVerifier, true, \ | |
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770 "Fail over to old verifier when split verifier fails") \ |
0 | 771 \ |
772 develop(bool, ShowSafepointMsgs, false, \ | |
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773 "Show message about safepoint synchronization") \ |
0 | 774 \ |
775 product(bool, SafepointTimeout, false, \ | |
776 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
777 "milliseconds if failed to reach safepoint") \ | |
778 \ | |
779 develop(bool, DieOnSafepointTimeout, false, \ | |
780 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
781 \ | |
782 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
783 /* typically, at most a few retries are needed */ \ | |
784 product(intx, SuspendRetryCount, 50, \ | |
785 "Maximum retry count for an external suspend request") \ | |
786 \ | |
787 product(intx, SuspendRetryDelay, 5, \ | |
788 "Milliseconds to delay per retry (* current_retry_count)") \ | |
789 \ | |
790 product(bool, AssertOnSuspendWaitFailure, false, \ | |
791 "Assert/Guarantee on external suspend wait failure") \ | |
792 \ | |
793 product(bool, TraceSuspendWaitFailures, false, \ | |
794 "Trace external suspend wait failures") \ | |
795 \ | |
796 product(bool, MaxFDLimit, true, \ | |
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797 "Bump the number of file descriptors to maximum in Solaris") \ |
0 | 798 \ |
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799 diagnostic(bool, LogEvents, true, \ |
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800 "Enable the various ring buffer event logs") \ |
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801 \ |
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802 diagnostic(uintx, LogEventsBufferEntries, 10, \ |
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803 "Number of ring buffer event logs") \ |
0 | 804 \ |
805 product(bool, BytecodeVerificationRemote, true, \ | |
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806 "Enable the Java bytecode verifier for remote classes") \ |
0 | 807 \ |
808 product(bool, BytecodeVerificationLocal, false, \ | |
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809 "Enable the Java bytecode verifier for local classes") \ |
0 | 810 \ |
811 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
812 "Force exceptions on FP stack under/overflow") \ | |
813 \ | |
814 develop(bool, VerifyStackAtCalls, false, \ | |
815 "Verify that the stack pointer is unchanged after calls") \ | |
816 \ | |
817 develop(bool, TraceJavaAssertions, false, \ | |
818 "Trace java language assertions") \ | |
819 \ | |
820 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
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821 "Temporary - see javaClasses.cpp") \ |
0 | 822 \ |
823 notproduct(bool, PrintMallocFree, false, \ | |
824 "Trace calls to C heap malloc/free allocation") \ | |
825 \ | |
1681
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826 product(bool, PrintOopAddress, false, \ |
0 | 827 "Always print the location of the oop") \ |
828 \ | |
14726
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829 notproduct(bool, VerifyCodeCacheOften, false, \ |
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830 "Verify compiled-code cache often") \ |
0 | 831 \ |
832 develop(bool, ZapDeadCompiledLocals, false, \ | |
833 "Zap dead locals in compiler frames") \ | |
834 \ | |
835 notproduct(bool, ZapDeadLocalsOld, false, \ | |
836 "Zap dead locals (old version, zaps all frames when " \ | |
837 "entering the VM") \ | |
838 \ | |
839 notproduct(bool, CheckOopishValues, false, \ | |
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840 "Warn if value contains oop (requires ZapDeadLocals)") \ |
0 | 841 \ |
842 develop(bool, UseMallocOnly, false, \ | |
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843 "Use only malloc/free for allocation (no resource area/arena)") \ |
0 | 844 \ |
845 develop(bool, PrintMalloc, false, \ | |
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846 "Print all malloc/free calls") \ |
0 | 847 \ |
2250 | 848 develop(bool, PrintMallocStatistics, false, \ |
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849 "Print malloc/free statistics") \ |
2250 | 850 \ |
0 | 851 develop(bool, ZapResourceArea, trueInDebug, \ |
852 "Zap freed resource/arena space with 0xABABABAB") \ | |
853 \ | |
854 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
855 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
856 \ | |
857 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
858 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
859 \ | |
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860 notproduct(bool, ZapStackSegments, trueInDebug, \ |
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861 "Zap allocated/freed stack segments with 0xFADFADED") \ |
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862 \ |
263
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863 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
0 | 864 "Zap unused heap space with 0xBAADBABE") \ |
865 \ | |
263
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866 develop(bool, TraceZapUnusedHeapArea, false, \ |
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867 "Trace zapping of unused heap space") \ |
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868 \ |
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869 develop(bool, CheckZapUnusedHeapArea, false, \ |
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870 "Check zapping of unused heap space") \ |
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871 \ |
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872 develop(bool, ZapFillerObjects, trueInDebug, \ |
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873 "Zap filler objects with 0xDEAFBABE") \ |
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874 \ |
0 | 875 develop(bool, PrintVMMessages, true, \ |
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876 "Print VM messages on console") \ |
0 | 877 \ |
878 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
879 "Print the time the application has been running") \ | |
880 \ | |
881 product(bool, PrintGCApplicationStoppedTime, false, \ | |
882 "Print the time the application has been stopped") \ | |
883 \ | |
6605 | 884 diagnostic(bool, VerboseVerification, false, \ |
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885 "Display detailed verification details") \ |
6605 | 886 \ |
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887 notproduct(uintx, ErrorHandlerTest, 0, \ |
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888 "If > 0, provokes an error after VM initialization; the value " \ |
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889 "determines which error to provoke. See test_error_handler() " \ |
1490
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|
890 "in debug.cpp.") \ |
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|
891 \ |
0 | 892 develop(bool, Verbose, false, \ |
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893 "Print additional debugging information from other modes") \ |
0 | 894 \ |
895 develop(bool, PrintMiscellaneous, false, \ | |
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896 "Print uncategorized debugging information (requires +Verbose)") \ |
0 | 897 \ |
898 develop(bool, WizardMode, false, \ | |
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899 "Print much more debugging information") \ |
0 | 900 \ |
901 product(bool, ShowMessageBoxOnError, false, \ | |
902 "Keep process alive on VM fatal error") \ | |
903 \ | |
2204
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|
904 product(bool, CreateMinidumpOnCrash, false, \ |
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|
905 "Create minidump on VM fatal error") \ |
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|
906 \ |
0 | 907 product_pd(bool, UseOSErrorReporting, \ |
908 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
909 \ | |
910 product(bool, SuppressFatalErrorMessage, false, \ | |
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911 "Report NO fatal error message (avoid deadlock)") \ |
0 | 912 \ |
913 product(ccstrlist, OnError, "", \ | |
914 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
915 "for examples") \ | |
916 \ | |
917 product(ccstrlist, OnOutOfMemoryError, "", \ | |
918 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
919 \ | |
615
c6c601a0f2d6
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parents:
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diff
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|
920 manageable(bool, HeapDumpBeforeFullGC, false, \ |
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921 "Dump heap to file before any major stop-the-world GC") \ |
615
c6c601a0f2d6
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diff
changeset
|
922 \ |
c6c601a0f2d6
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diff
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|
923 manageable(bool, HeapDumpAfterFullGC, false, \ |
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924 "Dump heap to file after any major stop-the-world GC") \ |
615
c6c601a0f2d6
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|
925 \ |
0 | 926 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
927 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
928 \ | |
929 manageable(ccstr, HeapDumpPath, NULL, \ | |
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930 "When HeapDumpOnOutOfMemoryError is on, the path (filename or " \ |
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931 "directory) of the dump file (defaults to java_pid<pid>.hprof " \ |
0 | 932 "in the working directory)") \ |
933 \ | |
934 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
935 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
936 "when the heap usage is larger than this") \ | |
937 \ | |
938 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
939 "Approximate segment size when generating a segmented heap dump") \ | |
940 \ | |
941 develop(bool, BreakAtWarning, false, \ | |
942 "Execute breakpoint upon encountering VM warning") \ | |
943 \ | |
944 develop(bool, TraceVMOperation, false, \ | |
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945 "Trace VM operations") \ |
0 | 946 \ |
947 develop(bool, UseFakeTimers, false, \ | |
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948 "Tell whether the VM should use system time or a fake timer") \ |
0 | 949 \ |
6197 | 950 product(ccstr, NativeMemoryTracking, "off", \ |
951 "Native memory tracking options") \ | |
952 \ | |
6770
9a86ddfc6c8f
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|
953 diagnostic(bool, PrintNMTStatistics, false, \ |
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|
954 "Print native memory tracking summary data if it is on") \ |
9a86ddfc6c8f
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|
955 \ |
8810
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|
956 diagnostic(bool, AutoShutdownNMT, true, \ |
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diff
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|
957 "Automatically shutdown native memory tracking under stress " \ |
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958 "situations. When set to false, native memory tracking tries to " \ |
8810
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diff
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|
959 "stay alive at the expense of JVM performance") \ |
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|
960 \ |
0 | 961 diagnostic(bool, LogCompilation, false, \ |
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
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parents:
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changeset
|
962 "Log compilation activity in detail to LogFile") \ |
0 | 963 \ |
964 product(bool, PrintCompilation, false, \ | |
965 "Print compilations") \ | |
966 \ | |
967 diagnostic(bool, TraceNMethodInstalls, false, \ | |
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968 "Trace nmethod installation") \ |
0 | 969 \ |
4119
7793051af7d6
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changeset
|
970 diagnostic(intx, ScavengeRootsInCode, 2, \ |
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971 "0: do not allow scavengable oops in the code cache; " \ |
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972 "1: allow scavenging from the code cache; " \ |
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973 "2: emit as many constants as the compiler can see") \ |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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parents:
910
diff
changeset
|
974 \ |
0 | 975 product(bool, AlwaysRestoreFPU, false, \ |
976 "Restore the FPU control word after every JNI call (expensive)") \ | |
977 \ | |
4064
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978 diagnostic(bool, PrintCompilation2, false, \ |
0 | 979 "Print additional statistics per compilation") \ |
980 \ | |
100
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981 diagnostic(bool, PrintAdapterHandlers, false, \ |
0 | 982 "Print code generated for i2c/c2i adapters") \ |
983 \ | |
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984 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
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985 "Verify that i2c/c2i adapters are called properly") \ |
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986 \ |
1207
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987 develop(bool, VerifyAdapterSharing, false, \ |
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988 "Verify that the code for shared adapters is the equivalent") \ |
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989 \ |
100
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990 diagnostic(bool, PrintAssembly, false, \ |
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991 "Print assembly code (using external disassembler.so)") \ |
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992 \ |
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993 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
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994 "Print options string passed to disassembler.so") \ |
100
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995 \ |
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996 product(bool, PrintNMethodStatistics, false, \ |
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997 "Print a summary statistic for the generated nmethods") \ |
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998 \ |
100
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999 diagnostic(bool, PrintNMethods, false, \ |
0 | 1000 "Print assembly code for nmethods when generated") \ |
1001 \ | |
100
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1002 diagnostic(bool, PrintNativeNMethods, false, \ |
0 | 1003 "Print assembly code for native nmethods when generated") \ |
1004 \ | |
1005 develop(bool, PrintDebugInfo, false, \ | |
1006 "Print debug information for all nmethods when generated") \ | |
1007 \ | |
1008 develop(bool, PrintRelocations, false, \ | |
1009 "Print relocation information for all nmethods when generated") \ | |
1010 \ | |
1011 develop(bool, PrintDependencies, false, \ | |
1012 "Print dependency information for all nmethods when generated") \ | |
1013 \ | |
1014 develop(bool, PrintExceptionHandlers, false, \ | |
1015 "Print exception handler tables for all nmethods when generated") \ | |
1016 \ | |
7428
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1017 develop(bool, StressCompiledExceptionHandlers, false, \ |
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1018 "Exercise compiled exception handlers") \ |
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1019 \ |
0 | 1020 develop(bool, InterceptOSException, false, \ |
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1021 "Start debugger when an implicit OS (e.g. NULL) " \ |
0 | 1022 "exception happens") \ |
1023 \ | |
7595
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1024 product(bool, PrintCodeCache, false, \ |
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1025 "Print the code cache memory usage when exiting") \ |
0 | 1026 \ |
1027 develop(bool, PrintCodeCache2, false, \ | |
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1028 "Print detailed usage information on the code cache when exiting")\ |
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1029 \ |
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1030 product(bool, PrintCodeCacheOnCompilation, false, \ |
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1031 "Print the code cache memory usage each time a method is " \ |
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1032 "compiled") \ |
0 | 1033 \ |
100
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1034 diagnostic(bool, PrintStubCode, false, \ |
0 | 1035 "Print generated stub code") \ |
1036 \ | |
1037 product(bool, StackTraceInThrowable, true, \ | |
1038 "Collect backtrace in throwable when exception happens") \ | |
1039 \ | |
1040 product(bool, OmitStackTraceInFastThrow, true, \ | |
1041 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
1042 \ | |
1043 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
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1044 "Print bytecode statistics when dumping profiler output") \ |
0 | 1045 \ |
1046 product(bool, ProfilerRecordPC, false, \ | |
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1047 "Collect ticks for each 16 byte interval of compiled code") \ |
0 | 1048 \ |
1064 | 1049 product(bool, ProfileVM, false, \ |
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1050 "Profile ticks that fall within VM (either in the VM Thread " \ |
0 | 1051 "or VM code called through stubs)") \ |
1052 \ | |
1053 product(bool, ProfileIntervals, false, \ | |
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1054 "Print profiles for each interval (see ProfileIntervalsTicks)") \ |
0 | 1055 \ |
1056 notproduct(bool, ProfilerCheckIntervals, false, \ | |
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1057 "Collect and print information on spacing of profiler ticks") \ |
0 | 1058 \ |
1059 develop(bool, PrintJVMWarnings, false, \ | |
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1060 "Print warnings for unimplemented JVM functions") \ |
0 | 1061 \ |
1870
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1062 product(bool, PrintWarnings, true, \ |
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1063 "Print JVM warnings to output stream") \ |
1870
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1064 \ |
0 | 1065 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
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1066 "Print warnings for stalled SpinLocks") \ |
0 | 1067 \ |
1068 product(bool, RegisterFinalizersAtInit, true, \ | |
1069 "Register finalizable objects at end of Object.<init> or " \ | |
1064 | 1070 "after allocation") \ |
0 | 1071 \ |
1072 develop(bool, RegisterReferences, true, \ | |
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1073 "Tell whether the VM should register soft/weak/final/phantom " \ |
0 | 1074 "references") \ |
1075 \ | |
1076 develop(bool, IgnoreRewrites, false, \ | |
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1077 "Suppress rewrites of bytecodes in the oopmap generator. " \ |
0 | 1078 "This is unsafe!") \ |
1079 \ | |
1080 develop(bool, PrintCodeCacheExtension, false, \ | |
1081 "Print extension of code cache") \ | |
1082 \ | |
1083 develop(bool, UsePrivilegedStack, true, \ | |
1084 "Enable the security JVM functions") \ | |
1085 \ | |
1086 develop(bool, ProtectionDomainVerification, true, \ | |
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1087 "Verify protection domain before resolution in system dictionary")\ |
0 | 1088 \ |
1089 product(bool, ClassUnloading, true, \ | |
1090 "Do unloading of classes") \ | |
1091 \ | |
1092 develop(bool, DisableStartThread, false, \ | |
1093 "Disable starting of additional Java threads " \ | |
1094 "(for debugging only)") \ | |
1095 \ | |
1096 develop(bool, MemProfiling, false, \ | |
1097 "Write memory usage profiling to log file") \ | |
1098 \ | |
1099 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
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1100 "Print the system dictionary at exit") \ |
0 | 1101 \ |
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1102 experimental(intx, PredictedLoadedClassCount, 0, \ |
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1103 "Experimental: Tune loaded class cache starting size") \ |
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1104 \ |
0 | 1105 diagnostic(bool, UnsyncloadClass, false, \ |
514 | 1106 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
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1107 "class loader must call VM synchronized for findClass " \ |
514 | 1108 "and defineClass.") \ |
1109 \ | |
1110 product(bool, AlwaysLockClassLoader, false, \ | |
1111 "Require the VM to acquire the class loader lock before calling " \ | |
1112 "loadClass() even for class loaders registering " \ | |
1064 | 1113 "as parallel capable") \ |
514 | 1114 \ |
1115 product(bool, AllowParallelDefineClass, false, \ | |
1116 "Allow parallel defineClass requests for class loaders " \ | |
1064 | 1117 "registering as parallel capable") \ |
514 | 1118 \ |
1119 product(bool, MustCallLoadClassInternal, false, \ | |
1064 | 1120 "Call loadClassInternal() rather than loadClass()") \ |
0 | 1121 \ |
1122 product_pd(bool, DontYieldALot, \ | |
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1123 "Throw away obvious excess yield calls (for Solaris only)") \ |
0 | 1124 \ |
1125 product_pd(bool, ConvertSleepToYield, \ | |
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1126 "Convert sleep(0) to thread yield " \ |
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1127 "(may be off for Solaris to improve GUI)") \ |
0 | 1128 \ |
1129 product(bool, ConvertYieldToSleep, false, \ | |
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1130 "Convert yield to a sleep of MinSleepInterval to simulate Win32 " \ |
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1131 "behavior (Solaris only)") \ |
0 | 1132 \ |
1133 product(bool, UseBoundThreads, true, \ | |
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1134 "Bind user level threads to kernel threads (for Solaris only)") \ |
0 | 1135 \ |
1136 develop(bool, UseDetachedThreads, true, \ | |
1137 "Use detached threads that are recycled upon termination " \ | |
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1138 "(for Solaris only)") \ |
0 | 1139 \ |
1140 product(bool, UseLWPSynchronization, true, \ | |
1141 "Use LWP-based instead of libthread-based synchronization " \ | |
1142 "(SPARC only)") \ | |
1143 \ | |
370
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1144 product(ccstr, SyncKnobs, NULL, \ |
0 | 1145 "(Unstable) Various monitor synchronization tunables") \ |
1146 \ | |
1147 product(intx, EmitSync, 0, \ | |
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1148 "(Unsafe, Unstable) " \ |
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1149 "Control emission of inline sync fast-path code") \ |
0 | 1150 \ |
1587 | 1151 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
1152 \ | |
1153 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
1154 \ | |
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1155 product(intx, SyncFlags, 0, "(Unsafe, Unstable) Experimental Sync flags") \ |
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1156 \ |
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1157 product(intx, SyncVerbose, 0, "(Unstable)") \ |
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1158 \ |
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1159 product(intx, ClearFPUAtPark, 0, "(Unsafe, Unstable)") \ |
0 | 1160 \ |
7587 | 1161 product(intx, hashCode, 5, \ |
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1162 "(Unstable) select hashCode generation algorithm") \ |
0 | 1163 \ |
1164 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
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1165 "(Unstable, Linux-specific) " \ |
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1166 "avoid NPTL-FUTEX hang pthread_cond_timedwait") \ |
0 | 1167 \ |
1064 | 1168 product(bool, FilterSpuriousWakeups, true, \ |
1169 "Prevent spurious or premature wakeups from object.wait " \ | |
1170 "(Solaris only)") \ | |
0 | 1171 \ |
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1172 product(intx, NativeMonitorTimeout, -1, "(Unstable)") \ |
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1173 \ |
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1174 product(intx, NativeMonitorFlags, 0, "(Unstable)") \ |
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1175 \ |
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1176 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)") \ |
0 | 1177 \ |
1178 develop(bool, UsePthreads, false, \ | |
1179 "Use pthread-based instead of libthread-based synchronization " \ | |
1180 "(SPARC only)") \ | |
1181 \ | |
1182 product(bool, AdjustConcurrency, false, \ | |
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1183 "Call thr_setconcurrency at thread creation time to avoid " \ |
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1184 "LWP starvation on MP systems (for Solaris Only)") \ |
0 | 1185 \ |
1186 product(bool, ReduceSignalUsage, false, \ | |
1187 "Reduce the use of OS signals in Java and/or the VM") \ | |
1188 \ | |
1189 develop_pd(bool, ShareVtableStubs, \ | |
1190 "Share vtable stubs (smaller code but worse branch prediction") \ | |
1191 \ | |
1192 develop(bool, LoadLineNumberTables, true, \ | |
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1193 "Tell whether the class file parser loads line number tables") \ |
0 | 1194 \ |
1195 develop(bool, LoadLocalVariableTables, true, \ | |
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1196 "Tell whether the class file parser loads local variable tables") \ |
0 | 1197 \ |
1198 develop(bool, LoadLocalVariableTypeTables, true, \ | |
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1199 "Tell whether the class file parser loads local variable type" \ |
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1200 "tables") \ |
0 | 1201 \ |
1202 product(bool, AllowUserSignalHandlers, false, \ | |
1203 "Do not complain if the application installs signal handlers " \ | |
1204 "(Solaris & Linux only)") \ | |
1205 \ | |
1206 product(bool, UseSignalChaining, true, \ | |
1207 "Use signal-chaining to invoke signal handlers installed " \ | |
1208 "by the application (Solaris & Linux only)") \ | |
1209 \ | |
1210 product(bool, UseAltSigs, false, \ | |
1211 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
1064 | 1212 "internal signals (Solaris only)") \ |
0 | 1213 \ |
1214 product(bool, AllowJNIEnvProxy, false, \ | |
1215 "Allow JNIEnv proxies for jdbx") \ | |
1216 \ | |
1217 product(bool, JNIDetachReleasesMonitors, true, \ | |
1218 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
1219 \ | |
1220 product(bool, RestoreMXCSROnJNICalls, false, \ | |
1221 "Restore MXCSR when returning from JNI calls") \ | |
1222 \ | |
1223 product(bool, CheckJNICalls, false, \ | |
1224 "Verify all arguments to JNI calls") \ | |
1225 \ | |
1226 product(bool, UseFastJNIAccessors, true, \ | |
1227 "Use optimized versions of Get<Primitive>Field") \ | |
1228 \ | |
1229 product(bool, EagerXrunInit, false, \ | |
1230 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
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1231 "but not all -Xrun libraries may support the state of the VM " \ |
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|
1232 "at this time") \ |
0 | 1233 \ |
1234 product(bool, PreserveAllAnnotations, false, \ | |
12836
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1235 "Preserve RuntimeInvisibleAnnotations as well " \ |
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1236 "as RuntimeVisibleAnnotations") \ |
0 | 1237 \ |
1238 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
1239 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
1240 \ | |
1241 product(bool, LazyBootClassLoader, true, \ | |
1242 "Enable/disable lazy opening of boot class path entries") \ | |
1243 \ | |
405 | 1244 product(bool, UseXMMForArrayCopy, false, \ |
1245 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
1246 \ | |
0 | 1247 product(intx, FieldsAllocationStyle, 1, \ |
1366
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1248 "0 - type based with oops first, 1 - with oops last, " \ |
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diff
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1249 "2 - oops in super and sub classes are together") \ |
0 | 1250 \ |
1251 product(bool, CompactFields, true, \ | |
1252 "Allocate nonstatic fields in gaps between previous fields") \ | |
1253 \ | |
7587 | 1254 notproduct(bool, PrintFieldLayout, false, \ |
1255 "Print field layout for each class") \ | |
1256 \ | |
1257 product(intx, ContendedPaddingWidth, 128, \ | |
1258 "How many bytes to pad the fields/classes marked @Contended with")\ | |
1259 \ | |
1260 product(bool, EnableContended, true, \ | |
1261 "Enable @Contended annotation support") \ | |
1262 \ | |
1263 product(bool, RestrictContended, true, \ | |
1264 "Restrict @Contended to trusted classes") \ | |
1265 \ | |
0 | 1266 product(bool, UseBiasedLocking, true, \ |
1267 "Enable biased locking in JVM") \ | |
1268 \ | |
1269 product(intx, BiasedLockingStartupDelay, 4000, \ | |
1270 "Number of milliseconds to wait before enabling biased locking") \ | |
1271 \ | |
1272 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
1273 "Print statistics of biased locking in JVM") \ | |
1274 \ | |
1275 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
1276 "Threshold of number of revocations per type to try to " \ | |
1277 "rebias all objects in the heap of that type") \ | |
1278 \ | |
1279 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
1280 "Threshold of number of revocations per type to permanently " \ | |
1281 "revoke biases of all objects in the heap of that type") \ | |
1282 \ | |
1283 product(intx, BiasedLockingDecayTime, 25000, \ | |
1284 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
1285 "type after previous bulk rebias") \ | |
1286 \ | |
1287 /* tracing */ \ | |
1288 \ | |
1289 notproduct(bool, TraceRuntimeCalls, false, \ | |
1290 "Trace run-time calls") \ | |
1291 \ | |
1292 develop(bool, TraceJNICalls, false, \ | |
1293 "Trace JNI calls") \ | |
1294 \ | |
14333
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1295 develop(bool, StressRewriter, false, \ |
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|
1296 "Stress linktime bytecode rewriting") \ |
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|
1297 \ |
0 | 1298 notproduct(bool, TraceJVMCalls, false, \ |
1299 "Trace JVM calls") \ | |
1300 \ | |
370
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1301 product(ccstr, TraceJVMTI, NULL, \ |
0 | 1302 "Trace flags for JVMTI functions and events") \ |
1303 \ | |
1304 /* This option can change an EMCP method into an obsolete method. */ \ | |
1305 /* This can affect tests that except specific methods to be EMCP. */ \ | |
1306 /* This option should be used with caution. */ \ | |
1307 product(bool, StressLdcRewrite, false, \ | |
1308 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
1309 \ | |
1310 product(intx, TraceRedefineClasses, 0, \ | |
1311 "Trace level for JVMTI RedefineClasses") \ | |
1312 \ | |
1574 | 1313 develop(bool, StressMethodComparator, false, \ |
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1314 "Run the MethodComparator on all loaded methods") \ |
1574 | 1315 \ |
0 | 1316 /* change to false by default sometime after Mustang */ \ |
1317 product(bool, VerifyMergedCPBytecodes, true, \ | |
1318 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
1319 \ | |
1320 develop(bool, TraceJNIHandleAllocation, false, \ | |
1321 "Trace allocation/deallocation of JNI handle blocks") \ | |
1322 \ | |
1323 develop(bool, TraceThreadEvents, false, \ | |
1324 "Trace all thread events") \ | |
1325 \ | |
1326 develop(bool, TraceBytecodes, false, \ | |
1327 "Trace bytecode execution") \ | |
1328 \ | |
1329 develop(bool, TraceClassInitialization, false, \ | |
1330 "Trace class initialization") \ | |
1331 \ | |
1332 develop(bool, TraceExceptions, false, \ | |
1333 "Trace exceptions") \ | |
1334 \ | |
1335 develop(bool, TraceICs, false, \ | |
1336 "Trace inline cache changes") \ | |
1337 \ | |
1338 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
1339 "Trace method invocation counter overflow") \ | |
1340 \ | |
1341 develop(bool, TraceInlineCacheClearing, false, \ | |
1342 "Trace clearing of inline caches in nmethods") \ | |
1343 \ | |
1344 develop(bool, TraceDependencies, false, \ | |
1345 "Trace dependencies") \ | |
1346 \ | |
1347 develop(bool, VerifyDependencies, trueInDebug, \ | |
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1348 "Exercise and verify the compilation dependency mechanism") \ |
0 | 1349 \ |
1350 develop(bool, TraceNewOopMapGeneration, false, \ | |
1351 "Trace OopMapGeneration") \ | |
1352 \ | |
1353 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
1354 "Trace OopMapGeneration: print detailed cell states") \ | |
1355 \ | |
1356 develop(bool, TimeOopMap, false, \ | |
1357 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
1358 \ | |
1359 develop(bool, TimeOopMap2, false, \ | |
1360 "Time calls to GenerateOopMap::compute_map() individually") \ | |
1361 \ | |
1362 develop(bool, TraceMonitorMismatch, false, \ | |
1363 "Trace monitor matching failures during OopMapGeneration") \ | |
1364 \ | |
1365 develop(bool, TraceOopMapRewrites, false, \ | |
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1366 "Trace rewriting of method oops during oop map generation") \ |
0 | 1367 \ |
1368 develop(bool, TraceSafepoint, false, \ | |
1369 "Trace safepoint operations") \ | |
1370 \ | |
1371 develop(bool, TraceICBuffer, false, \ | |
1372 "Trace usage of IC buffer") \ | |
1373 \ | |
1374 develop(bool, TraceCompiledIC, false, \ | |
1375 "Trace changes of compiled IC") \ | |
1376 \ | |
1377 notproduct(bool, TraceZapDeadLocals, false, \ | |
1378 "Trace zapping dead locals") \ | |
1379 \ | |
1380 develop(bool, TraceStartupTime, false, \ | |
1381 "Trace setup time") \ | |
1382 \ | |
1383 develop(bool, TraceProtectionDomainVerification, false, \ | |
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1384 "Trace protection domain verification") \ |
0 | 1385 \ |
1386 develop(bool, TraceClearedExceptions, false, \ | |
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1387 "Print when an exception is forcibly cleared") \ |
0 | 1388 \ |
1389 product(bool, TraceClassResolution, false, \ | |
1390 "Trace all constant pool resolutions (for debugging)") \ | |
1391 \ | |
1392 product(bool, TraceBiasedLocking, false, \ | |
1393 "Trace biased locking in JVM") \ | |
1394 \ | |
1395 product(bool, TraceMonitorInflation, false, \ | |
1396 "Trace monitor inflation in JVM") \ | |
1397 \ | |
1398 /* gc */ \ | |
1399 \ | |
1400 product(bool, UseSerialGC, false, \ | |
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1401 "Use the Serial garbage collector") \ |
342
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|
1402 \ |
1193
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|
1403 product(bool, UseG1GC, false, \ |
342
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|
1404 "Use the Garbage-First garbage collector") \ |
0 | 1405 \ |
1406 product(bool, UseParallelGC, false, \ | |
1407 "Use the Parallel Scavenge garbage collector") \ | |
1408 \ | |
1409 product(bool, UseParallelOldGC, false, \ | |
1410 "Use the Parallel Old garbage collector") \ | |
1411 \ | |
1412 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
1413 "How often should we maximally compact the heap (not allowing " \ | |
1414 "any dead space)") \ | |
1415 \ | |
1416 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
1417 "The collection count for the first maximum compaction") \ | |
1418 \ | |
1419 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
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1420 "Use maximum compaction in the Parallel Old garbage collector " \ |
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1421 "for a system GC") \ |
0 | 1422 \ |
1423 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
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1424 "The mean used by the parallel compact dead wood " \ |
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1425 "limiter (a number between 0-100)") \ |
0 | 1426 \ |
1427 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
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1428 "The standard deviation used by the parallel compact dead wood " \ |
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1429 "limiter (a number between 0-100)") \ |
0 | 1430 \ |
1431 product(uintx, ParallelGCThreads, 0, \ | |
1432 "Number of parallel threads parallel gc will use") \ | |
1433 \ | |
4095
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|
1434 product(bool, UseDynamicNumberOfGCThreads, false, \ |
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|
1435 "Dynamically choose the number of parallel threads " \ |
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|
1436 "parallel gc will use") \ |
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|
1437 \ |
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|
1438 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
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1439 "Force dynamic selection of the number of " \ |
4095
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|
1440 "parallel threads parallel gc will use to aid debugging") \ |
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|
1441 \ |
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|
1442 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
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1443 "Size of heap (bytes) per GC thread used in calculating the " \ |
bca17e38de00
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|
1444 "number of GC threads") \ |
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|
1445 \ |
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|
1446 product(bool, TraceDynamicGCThreads, false, \ |
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|
1447 "Trace the dynamic GC thread usage") \ |
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1448 \ |
483
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|
1449 develop(bool, ParallelOldGCSplitALot, false, \ |
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1450 "Provoke splitting (copying data from a young gen space to " \ |
483
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diff
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|
1451 "multiple destination spaces)") \ |
0f773163217d
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481
diff
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|
1452 \ |
0f773163217d
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|
1453 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
0f773163217d
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|
1454 "How often to provoke splitting a young gen space") \ |
0 | 1455 \ |
1284 | 1456 product(uintx, ConcGCThreads, 0, \ |
1457 "Number of threads concurrent gc will use") \ | |
342
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1458 \ |
0 | 1459 product(uintx, YoungPLABSize, 4096, \ |
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1460 "Size of young gen promotion LAB's (in HeapWords)") \ |
0 | 1461 \ |
1462 product(uintx, OldPLABSize, 1024, \ | |
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1463 "Size of old gen promotion LAB's (in HeapWords)") \ |
0 | 1464 \ |
1465 product(uintx, GCTaskTimeStampEntries, 200, \ | |
1466 "Number of time stamp entries per gc worker thread") \ | |
1467 \ | |
1468 product(bool, AlwaysTenure, false, \ | |
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1469 "Always tenure objects in eden (ParallelGC only)") \ |
0 | 1470 \ |
1471 product(bool, NeverTenure, false, \ | |
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1472 "Never tenure objects in eden, may tenure on overflow " \ |
1064 | 1473 "(ParallelGC only)") \ |
0 | 1474 \ |
1475 product(bool, ScavengeBeforeFullGC, true, \ | |
1064 | 1476 "Scavenge youngest generation before each full GC, " \ |
1477 "used with UseParallelGC") \ | |
0 | 1478 \ |
1479 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
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1480 "Allow scavenges to occur when to-space contains objects") \ |
0 | 1481 \ |
1482 product(bool, UseConcMarkSweepGC, false, \ | |
1483 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
1484 \ | |
1485 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
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1486 "A System.gc() request invokes a concurrent collection; " \ |
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1487 "(effective only when UseConcMarkSweepGC)") \ |
0 | 1488 \ |
1489 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
1064 | 1490 "A System.gc() request invokes a concurrent collection and " \ |
1491 "also unloads classes during such a concurrent gc cycle " \ | |
1492 "(effective only when UseConcMarkSweepGC)") \ | |
0 | 1493 \ |
1520
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|
1494 product(bool, GCLockerInvokesConcurrent, false, \ |
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1495 "The exit of a JNI critical section necessitating a scavenge, " \ |
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1496 "also kicks off a background concurrent collection") \ |
1520
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|
1497 \ |
1991
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|
1498 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
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1499 "How much the GC can expand the eden by while the GC locker " \ |
1991
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|
1500 "is active (as a percentage)") \ |
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|
1501 \ |
8853
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|
1502 diagnostic(intx, GCLockerRetryAllocationCount, 2, \ |
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1503 "Number of times to retry allocations when " \ |
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1504 "blocked by the GC locker") \ |
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1505 \ |
0 | 1506 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
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1507 "Use adaptive free lists in the CMS generation") \ |
0 | 1508 \ |
1509 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
1510 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
1511 \ | |
1512 develop(bool, RotateCMSCollectionTypes, false, \ | |
1513 "Rotate the CMS collections among concurrent and STW") \ | |
1514 \ | |
1515 product(bool, UseCMSBestFit, true, \ | |
1516 "Use CMS best fit allocation strategy") \ | |
1517 \ | |
1518 product(bool, UseCMSCollectionPassing, true, \ | |
1519 "Use passing of collection from background to foreground") \ | |
1520 \ | |
1521 product(bool, UseParNewGC, false, \ | |
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1522 "Use parallel threads in the new generation") \ |
0 | 1523 \ |
1524 product(bool, ParallelGCVerbose, false, \ | |
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1525 "Verbose output for parallel gc") \ |
0 | 1526 \ |
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1527 product(uintx, ParallelGCBufferWastePct, 10, \ |
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1528 "Wasted fraction of parallel allocation buffer") \ |
0 | 1529 \ |
3357
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1530 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
12836
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1531 "Retain parallel allocation buffers across scavenges; " \ |
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1532 "it is disabled because this currently conflicts with " \ |
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1533 "parallel card scanning under certain conditions.") \ |
0 | 1534 \ |
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1535 product(uintx, TargetPLABWastePct, 10, \ |
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1536 "Target wasted space in last buffer as percent of overall " \ |
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1537 "allocation") \ |
0 | 1538 \ |
1539 product(uintx, PLABWeight, 75, \ | |
14358 | 1540 "Percentage (0-100) used to weight the current sample when " \ |
12836
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1541 "computing exponentially decaying average for ResizePLAB") \ |
0 | 1542 \ |
1543 product(bool, ResizePLAB, true, \ | |
12836
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1544 "Dynamically resize (survivor space) promotion LAB's") \ |
0 | 1545 \ |
1546 product(bool, PrintPLAB, false, \ | |
12836
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1547 "Print (survivor space) promotion LAB's sizing decisions") \ |
0 | 1548 \ |
1549 product(intx, ParGCArrayScanChunk, 50, \ | |
12836
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1550 "Scan a subset of object array and push remainder, if array is " \ |
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1551 "bigger than this") \ |
0 | 1552 \ |
695 | 1553 product(bool, ParGCUseLocalOverflow, false, \ |
1554 "Instead of a global overflow list, use local overflow stacks") \ | |
1555 \ | |
679
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1556 product(bool, ParGCTrimOverflow, true, \ |
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1557 "Eagerly trim the local overflow lists " \ |
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1558 "(when ParGCUseLocalOverflow)") \ |
679
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1559 \ |
534 | 1560 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
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1561 "Simulate work queue overflow in ParNew") \ |
534 | 1562 \ |
1563 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
1064 | 1564 "An `interval' counter that determines how frequently " \ |
1565 "we simulate overflow; a smaller number increases frequency") \ | |
534 | 1566 \ |
1567 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
0 | 1568 "The desired number of objects to claim from the overflow list") \ |
1569 \ | |
4728
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1570 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
3357
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1571 "The number of strides per worker thread that we divide up the " \ |
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1572 "card table scanning work into") \ |
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1573 \ |
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1574 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
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1575 "The number of cards in each chunk of the parallel chunks used " \ |
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1576 "during card table scanning") \ |
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1577 \ |
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1578 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
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1579 "Number of blocks to attempt to claim when refilling CMS LAB's " \ |
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1580 "for parallel GC") \ |
0 | 1581 \ |
1145
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1582 product(uintx, OldPLABWeight, 50, \ |
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1583 "Percentage (0-100) used to weight the current sample when " \ |
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1584 "computing exponentially decaying average for resizing " \ |
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1585 "CMSParPromoteBlocksToClaim") \ |
1145
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1586 \ |
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1587 product(bool, ResizeOldPLAB, true, \ |
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1588 "Dynamically resize (old gen) promotion LAB's") \ |
1145
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1589 \ |
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1590 product(bool, PrintOldPLAB, false, \ |
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1591 "Print (old gen) promotion LAB's sizing decisions") \ |
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1592 \ |
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1593 product(uintx, CMSOldPLABMin, 16, \ |
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1594 "Minimum size of CMS gen promotion LAB caches per worker " \ |
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1595 "per block size") \ |
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1596 \ |
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1597 product(uintx, CMSOldPLABMax, 1024, \ |
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1598 "Maximum size of CMS gen promotion LAB caches per worker " \ |
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1599 "per block size") \ |
1145
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1600 \ |
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1601 product(uintx, CMSOldPLABNumRefills, 4, \ |
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1602 "Nominal number of refills of CMS gen promotion LAB cache " \ |
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1603 "per worker per block size") \ |
1145
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1604 \ |
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1605 product(bool, CMSOldPLABResizeQuicker, false, \ |
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1606 "React on-the-fly during a scavenge to a sudden " \ |
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1607 "change in block demand rate") \ |
1145
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1608 \ |
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1609 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
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1610 "The tolerance of the phase-change detector for on-the-fly " \ |
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1611 "PLAB resizing during a scavenge") \ |
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1612 \ |
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1613 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
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1614 "The gain in the feedback loop for on-the-fly PLAB resizing " \ |
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1615 "during a scavenge") \ |
1145
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1616 \ |
0 | 1617 product(bool, AlwaysPreTouch, false, \ |
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1618 "Force all freshly committed pages to be pre-touched") \ |
0 | 1619 \ |
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1620 product_pd(uintx, CMSYoungGenPerWorker, \ |
2368
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1621 "The maximum size of young gen chosen by default per GC worker " \ |
1064 | 1622 "thread available") \ |
0 | 1623 \ |
1624 product(bool, CMSIncrementalMode, false, \ | |
1625 "Whether CMS GC should operate in \"incremental\" mode") \ | |
1626 \ | |
1627 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
12836
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1628 "Percentage (0-100) of CMS incremental mode duty cycle. If " \ |
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1629 "CMSIncrementalPacing is enabled, then this is just the initial " \ |
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1630 "value.") \ |
0 | 1631 \ |
1632 product(bool, CMSIncrementalPacing, true, \ | |
1633 "Whether the CMS incremental mode duty cycle should be " \ | |
1634 "automatically adjusted") \ | |
1635 \ | |
1636 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
12836
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1637 "Minimum percentage (0-100) of the CMS incremental duty cycle " \ |
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1638 "used when CMSIncrementalPacing is enabled") \ |
0 | 1639 \ |
1640 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
1064 | 1641 "Percentage (0-100) used to add conservatism when computing the " \ |
1642 "duty cycle") \ | |
0 | 1643 \ |
1644 product(uintx, CMSIncrementalOffset, 0, \ | |
12836
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1645 "Percentage (0-100) by which the CMS incremental mode duty cycle "\ |
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1646 "is shifted to the right within the period between young GCs") \ |
0 | 1647 \ |
1145
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1648 product(uintx, CMSExpAvgFactor, 50, \ |
14358 | 1649 "Percentage (0-100) used to weight the current sample when " \ |
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1650 "computing exponential averages for CMS statistics") \ |
1145
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1651 \ |
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1652 product(uintx, CMS_FLSWeight, 75, \ |
14358 | 1653 "Percentage (0-100) used to weight the current sample when " \ |
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1654 "computing exponentially decaying averages for CMS FLS " \ |
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1655 "statistics") \ |
1145
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1656 \ |
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1657 product(uintx, CMS_FLSPadding, 1, \ |
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1658 "The multiple of deviation from mean to use for buffering " \ |
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1659 "against volatility in free list demand") \ |
0 | 1660 \ |
1661 product(uintx, FLSCoalescePolicy, 2, \ | |
12836
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1662 "CMS: aggressiveness level for coalescing, increasing " \ |
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1663 "from 0 to 4") \ |
0 | 1664 \ |
1145
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1665 product(bool, FLSAlwaysCoalesceLarge, false, \ |
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1666 "CMS: larger free blocks are always available for coalescing") \ |
1145
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1667 \ |
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1668 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
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1669 "CMS: the smaller the percentage the greater the coalescing " \ |
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1670 "force") \ |
1145
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1671 \ |
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1672 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
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1673 "CMS: the factor by which to inflate estimated demand of small " \ |
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1674 "block sizes to prevent coalescing with an adjoining block") \ |
1145
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1675 \ |
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1676 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
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1677 "CMS: the factor by which to inflate estimated demand of large " \ |
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1678 "block sizes to prevent coalescing with an adjoining block") \ |
1145
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1679 \ |
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1680 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
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1681 "CMS: the factor by which to inflate estimated demand of small " \ |
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1682 "block sizes to prevent splitting to supply demand for smaller " \ |
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1683 "blocks") \ |
1145
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1684 \ |
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1685 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
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1686 "CMS: the factor by which to inflate estimated demand of large " \ |
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1687 "block sizes to prevent splitting to supply demand for smaller " \ |
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1688 "blocks") \ |
1145
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1689 \ |
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1690 product(bool, CMSExtrapolateSweep, false, \ |
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1691 "CMS: cushion for block demand during sweep") \ |
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1692 \ |
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1693 product(uintx, CMS_SweepWeight, 75, \ |
1064 | 1694 "Percentage (0-100) used to weight the current sample when " \ |
1695 "computing exponentially decaying average for inter-sweep " \ | |
1696 "duration") \ | |
0 | 1697 \ |
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1698 product(uintx, CMS_SweepPadding, 1, \ |
1064 | 1699 "The multiple of deviation from mean to use for buffering " \ |
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1700 "against volatility in inter-sweep duration") \ |
0 | 1701 \ |
1702 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
1703 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
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1704 "duration exceeds this threshold in milliseconds") \ |
0 | 1705 \ |
1706 develop(bool, CMSTraceIncrementalMode, false, \ | |
1707 "Trace CMS incremental mode") \ | |
1708 \ | |
1709 develop(bool, CMSTraceIncrementalPacing, false, \ | |
1710 "Trace CMS incremental mode pacing computation") \ | |
1711 \ | |
1712 develop(bool, CMSTraceThreadState, false, \ | |
1713 "Trace the CMS thread state (enable the trace_state() method)") \ | |
1714 \ | |
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1715 product(bool, CMSClassUnloadingEnabled, true, \ |
0 | 1716 "Whether class unloading enabled when using CMS GC") \ |
1717 \ | |
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1718 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
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1719 "When CMS class unloading is enabled, the maximum CMS cycle " \ |
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1720 "count for which classes may not be unloaded") \ |
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1721 \ |
0 | 1722 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
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1723 "Compact when asked to collect CMS gen with " \ |
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1724 "clear_all_soft_refs()") \ |
0 | 1725 \ |
1726 product(bool, UseCMSCompactAtFullCollection, true, \ | |
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1727 "Use Mark-Sweep-Compact algorithm at full collections") \ |
0 | 1728 \ |
1729 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
1730 "Number of CMS full collection done before compaction if > 0") \ | |
1731 \ | |
1732 develop(intx, CMSDictionaryChoice, 0, \ | |
1733 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
1734 \ | |
1735 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
6818 | 1736 "Replenish an indexed free list with this number of chunks") \ |
0 | 1737 \ |
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1738 product(bool, CMSReplenishIntermediate, true, \ |
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1739 "Replenish all intermediate free-list caches") \ |
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1740 \ |
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1741 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
1777
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1742 "When satisfying batched demand, split blocks from the " \ |
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1743 "IndexedFreeList whose size is a multiple of requested size") \ |
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1744 \ |
0 | 1745 product(bool, CMSLoopWarn, false, \ |
1746 "Warn in case of excessive CMS looping") \ | |
1747 \ | |
1748 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
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1749 "Restore preserved marks early") \ |
0 | 1750 \ |
1284 | 1751 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
1752 "Size of marking stack") \ | |
1753 \ | |
1754 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
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1755 "Maximum size of marking stack") \ |
0 | 1756 \ |
1757 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
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1758 "Simulate frequent marking stack / work queue overflow") \ |
0 | 1759 \ |
534 | 1760 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
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1761 "An \"interval\" counter that determines how frequently " \ |
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1762 "to simulate overflow; a smaller number increases frequency") \ |
0 | 1763 \ |
1764 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
1765 "Maximum number of abortable preclean iterations, if > 0") \ | |
1766 \ | |
1767 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
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1768 "Maximum time in abortable preclean (in milliseconds)") \ |
0 | 1769 \ |
1770 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
1771 "Nominal minimum work per abortable preclean iteration") \ | |
1772 \ | |
1887
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1773 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
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1774 "Time that we sleep between iterations when not given " \ |
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1775 "enough work per iteration") \ |
0 | 1776 \ |
1777 product(uintx, CMSRescanMultiple, 32, \ | |
1778 "Size (in cards) of CMS parallel rescan task") \ | |
1779 \ | |
1780 product(uintx, CMSConcMarkMultiple, 32, \ | |
1781 "Size (in cards) of CMS concurrent MT marking task") \ | |
1782 \ | |
1783 product(bool, CMSAbortSemantics, false, \ | |
1784 "Whether abort-on-overflow semantics is implemented") \ | |
1785 \ | |
11975 | 1786 product(bool, CMSParallelInitialMarkEnabled, true, \ |
1787 "Use the parallel initial mark.") \ | |
1788 \ | |
0 | 1789 product(bool, CMSParallelRemarkEnabled, true, \ |
1790 "Whether parallel remark enabled (only if ParNewGC)") \ | |
1791 \ | |
1792 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
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1793 "Whether parallel remark of survivor space " \ |
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1794 "enabled (effective only if CMSParallelRemarkEnabled)") \ |
0 | 1795 \ |
1796 product(bool, CMSPLABRecordAlways, true, \ | |
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1797 "Always record survivor space PLAB boundaries (effective only " \ |
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1798 "if CMSParallelSurvivorRemarkEnabled)") \ |
0 | 1799 \ |
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1800 product(bool, CMSEdenChunksRecordAlways, true, \ |
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1801 "Always record eden chunks used for the parallel initial mark " \ |
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1802 "or remark of eden") \ |
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1803 \ |
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1804 product(bool, CMSPrintEdenSurvivorChunks, false, \ |
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1805 "Print the eden and the survivor chunks used for the parallel " \ |
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1806 "initial mark or remark of the eden/survivor spaces") \ |
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1807 \ |
0 | 1808 product(bool, CMSConcurrentMTEnabled, true, \ |
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1809 "Whether multi-threaded concurrent work enabled " \ |
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1810 "(effective only if ParNewGC)") \ |
0 | 1811 \ |
1812 product(bool, CMSPrecleaningEnabled, true, \ | |
1813 "Whether concurrent precleaning enabled") \ | |
1814 \ | |
1815 product(uintx, CMSPrecleanIter, 3, \ | |
1816 "Maximum number of precleaning iteration passes") \ | |
1817 \ | |
1818 product(uintx, CMSPrecleanNumerator, 2, \ | |
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1819 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \ |
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1820 "ratio") \ |
0 | 1821 \ |
1822 product(uintx, CMSPrecleanDenominator, 3, \ | |
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1823 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \ |
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1824 "ratio") \ |
0 | 1825 \ |
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1826 product(bool, CMSPrecleanRefLists1, true, \ |
0 | 1827 "Preclean ref lists during (initial) preclean phase") \ |
1828 \ | |
1829 product(bool, CMSPrecleanRefLists2, false, \ | |
1830 "Preclean ref lists during abortable preclean phase") \ | |
1831 \ | |
1832 product(bool, CMSPrecleanSurvivors1, false, \ | |
1833 "Preclean survivors during (initial) preclean phase") \ | |
1834 \ | |
1835 product(bool, CMSPrecleanSurvivors2, true, \ | |
1836 "Preclean survivors during abortable preclean phase") \ | |
1837 \ | |
1838 product(uintx, CMSPrecleanThreshold, 1000, \ | |
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1839 "Do not iterate again if number of dirty cards is less than this")\ |
0 | 1840 \ |
1841 product(bool, CMSCleanOnEnter, true, \ | |
1842 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
1843 \ | |
1844 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
1845 "Choose variant (1,2) of verification following remark") \ | |
1846 \ | |
1847 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
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1848 "If Eden size is below this, do not try to schedule remark") \ |
0 | 1849 \ |
1850 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
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1851 "The Eden occupancy percentage (0-100) at which " \ |
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1852 "to try and schedule remark pause") \ |
0 | 1853 \ |
1854 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
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1855 "Start sampling eden top at least before young gen " \ |
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1856 "occupancy reaches 1/<ratio> of the size at which " \ |
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1857 "we plan to schedule remark") \ |
0 | 1858 \ |
1859 product(uintx, CMSSamplingGrain, 16*K, \ | |
1860 "The minimum distance between eden samples for CMS (see above)") \ | |
1861 \ | |
1862 product(bool, CMSScavengeBeforeRemark, false, \ | |
1863 "Attempt scavenge before the CMS remark step") \ | |
1864 \ | |
1865 develop(bool, CMSTraceSweeper, false, \ | |
1866 "Trace some actions of the CMS sweeper") \ | |
1867 \ | |
1868 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
1869 "Don't drain below this size per parallel worker/thief") \ | |
1870 \ | |
1887
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1871 manageable(intx, CMSWaitDuration, 2000, \ |
0 | 1872 "Time in milliseconds that CMS thread waits for young GC") \ |
1873 \ | |
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1874 develop(uintx, CMSCheckInterval, 1000, \ |
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1875 "Interval in milliseconds that CMS thread checks if it " \ |
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1876 "should start a collection cycle") \ |
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1877 \ |
0 | 1878 product(bool, CMSYield, true, \ |
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1879 "Yield between steps of CMS") \ |
0 | 1880 \ |
1881 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
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1882 "Bitmap operations should process at most this many bits " \ |
0 | 1883 "between yields") \ |
1884 \ | |
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1885 product(bool, CMSDumpAtPromotionFailure, false, \ |
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1886 "Dump useful information about the state of the CMS old " \ |
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1887 "generation upon a promotion failure") \ |
1145
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1888 \ |
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1889 product(bool, CMSPrintChunksInDump, false, \ |
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1890 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1891 "more detailed information about the free chunks") \ |
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1892 \ |
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1893 product(bool, CMSPrintObjectsInDump, false, \ |
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1894 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1895 "more detailed information about the allocated objects") \ |
1145
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1896 \ |
0 | 1897 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
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1898 "Verify that all references across the FLS boundary " \ |
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1899 "are to valid objects") \ |
0 | 1900 \ |
1901 diagnostic(bool, FLSVerifyLists, false, \ | |
1902 "Do lots of (expensive) FreeListSpace verification") \ | |
1903 \ | |
1904 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
1905 "Do lots of (expensive) FLS index table verification") \ | |
1906 \ | |
1907 develop(bool, FLSVerifyDictionary, false, \ | |
1908 "Do lots of (expensive) FLS dictionary verification") \ | |
1909 \ | |
1910 develop(bool, VerifyBlockOffsetArray, false, \ | |
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1911 "Do (expensive) block offset array verification") \ |
0 | 1912 \ |
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1913 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
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1914 "Maintain _unallocated_block in BlockOffsetArray " \ |
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1915 "(currently applicable only to CMS collector)") \ |
0 | 1916 \ |
1917 develop(bool, TraceCMSState, false, \ | |
1918 "Trace the state of the CMS collection") \ | |
1919 \ | |
1920 product(intx, RefDiscoveryPolicy, 0, \ | |
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1921 "Select type of reference discovery policy: " \ |
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1922 "reference-based(0) or referent-based(1)") \ |
0 | 1923 \ |
1924 product(bool, ParallelRefProcEnabled, false, \ | |
1925 "Enable parallel reference processing whenever possible") \ | |
1926 \ | |
1927 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
1928 "Enable balancing of reference processing queues") \ | |
1929 \ | |
8035 | 1930 product(uintx, CMSTriggerRatio, 80, \ |
0 | 1931 "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
1064 | 1932 "allocated before a CMS collection cycle commences") \ |
0 | 1933 \ |
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1934 product(uintx, CMSBootstrapOccupancy, 50, \ |
0 | 1935 "Percentage CMS generation occupancy at which to " \ |
1064 | 1936 "initiate CMS collection for bootstrapping collection stats") \ |
0 | 1937 \ |
1938 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
1939 "Percentage CMS generation occupancy to start a CMS collection " \ | |
1064 | 1940 "cycle. A negative value means that CMSTriggerRatio is used") \ |
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1941 \ |
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1942 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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1943 "Percentage of the (entire) heap occupancy to start a " \ |
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1944 "concurrent GC cycle. It is used by GCs that trigger a " \ |
1283
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1945 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1946 "not just one of the generations (e.g., G1). A value of 0 " \ |
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1947 "denotes 'do constant GC cycles'.") \ |
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1948 \ |
0 | 1949 product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
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1950 "Only use occupancy as a criterion for starting a CMS collection")\ |
0 | 1951 \ |
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1952 product(uintx, CMSIsTooFullPercentage, 98, \ |
1064 | 1953 "An absolute ceiling above which CMS will always consider the " \ |
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1954 "unloading of classes when class unloading is enabled") \ |
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1955 \ |
0 | 1956 develop(bool, CMSTestInFreeList, false, \ |
1957 "Check if the coalesced range is already in the " \ | |
1064 | 1958 "free lists as claimed") \ |
0 | 1959 \ |
1960 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
1961 "Check that all the garbage collected was returned to the " \ | |
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1962 "free lists") \ |
0 | 1963 \ |
1964 notproduct(bool, ScavengeALot, false, \ | |
1965 "Force scavenge at every Nth exit from the runtime system " \ | |
1966 "(N=ScavengeALotInterval)") \ | |
1967 \ | |
1968 develop(bool, FullGCALot, false, \ | |
1969 "Force full gc at every Nth exit from the runtime system " \ | |
1970 "(N=FullGCALotInterval)") \ | |
1971 \ | |
1972 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
1973 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
1974 \ | |
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1975 product(bool, PrintPromotionFailure, false, \ |
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|
1976 "Print additional diagnostic information following " \ |
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1977 "promotion failure") \ |
1145
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1978 \ |
0 | 1979 notproduct(bool, PromotionFailureALot, false, \ |
1980 "Use promotion failure handling on every youngest generation " \ | |
1981 "collection") \ | |
1982 \ | |
1983 develop(uintx, PromotionFailureALotCount, 1000, \ | |
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1984 "Number of promotion failures occurring at ParGCAllocBuffer " \ |
0 | 1985 "refill attempts (ParNew) or promotion attempts " \ |
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1986 "(other young collectors)") \ |
0 | 1987 \ |
1988 develop(uintx, PromotionFailureALotInterval, 5, \ | |
14358 | 1989 "Total collections between promotion failures a lot") \ |
0 | 1990 \ |
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1991 experimental(uintx, WorkStealingSleepMillis, 1, \ |
0 | 1992 "Sleep time when sleep is used for yields") \ |
1993 \ | |
2430 | 1994 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
14358 | 1995 "Number of yields before a sleep is done during work stealing") \ |
0 | 1996 \ |
1837
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1997 experimental(uintx, WorkStealingHardSpins, 4096, \ |
546
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1998 "Number of iterations in a spin loop between checks on " \ |
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1999 "time out of hard spin") \ |
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2000 \ |
1837
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2001 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
546
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2002 "Ratio of hard spins to calls to yield") \ |
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|
2003 \ |
1311
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2004 develop(uintx, ObjArrayMarkingStride, 512, \ |
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2005 "Number of object array elements to push onto the marking stack " \ |
1311
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|
2006 "before pushing a continuation entry") \ |
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|
2007 \ |
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2008 develop(bool, MetadataAllocationFailALot, false, \ |
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2009 "Fail metadata allocations at intervals controlled by " \ |
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2010 "MetadataAllocationFailALotInterval") \ |
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2011 \ |
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2012 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ |
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2013 "Metadata allocation failure a lot interval") \ |
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2014 \ |
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|
2015 develop(bool, TraceMetadataChunkAllocation, false, \ |
7461
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2016 "Trace chunk metadata allocations") \ |
6725
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2017 \ |
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2018 product(bool, TraceMetadataHumongousAllocation, false, \ |
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2019 "Trace humongous metadata allocations") \ |
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2020 \ |
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2021 develop(bool, TraceMetavirtualspaceAllocation, false, \ |
7461
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2022 "Trace virtual space metadata allocations") \ |
6725
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2023 \ |
3779 | 2024 notproduct(bool, ExecuteInternalVMTests, false, \ |
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2025 "Enable execution of internal VM tests") \ |
3779 | 2026 \ |
12110
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|
2027 notproduct(bool, VerboseInternalVMTests, false, \ |
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|
2028 "Turn on logging for internal VM tests.") \ |
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|
2029 \ |
0 | 2030 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
2031 \ | |
2032 product_pd(bool, ResizeTLAB, \ | |
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2033 "Dynamically resize TLAB size for threads") \ |
0 | 2034 \ |
2035 product(bool, ZeroTLAB, false, \ | |
2036 "Zero out the newly created TLAB") \ | |
2037 \ | |
342
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|
2038 product(bool, FastTLABRefill, true, \ |
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|
2039 "Use fast TLAB refill code") \ |
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|
2040 \ |
0 | 2041 product(bool, PrintTLAB, false, \ |
2042 "Print various TLAB related information") \ | |
2043 \ | |
2044 product(bool, TLABStats, true, \ | |
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2045 "Provide more detailed and expensive TLAB statistics " \ |
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2046 "(with PrintTLAB)") \ |
0 | 2047 \ |
2192
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|
2048 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
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diff
changeset
|
2049 "Enable LowMemoryProtection")) \ |
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|
2050 \ |
0 | 2051 product_pd(bool, NeverActAsServerClassMachine, \ |
2052 "Never act like a server-class machine") \ | |
2053 \ | |
2054 product(bool, AlwaysActAsServerClassMachine, false, \ | |
2055 "Always act like a server-class machine") \ | |
2056 \ | |
1064 | 2057 product_pd(uint64_t, MaxRAM, \ |
2058 "Real memory size (in bytes) used to set maximum heap size") \ | |
2059 \ | |
2060 product(uintx, ErgoHeapSizeLimit, 0, \ | |
2061 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
2062 "MaxRAM / MaxRAMFraction") \ | |
2063 \ | |
2064 product(uintx, MaxRAMFraction, 4, \ | |
2065 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
2066 "size") \ | |
0 | 2067 \ |
2068 product(uintx, DefaultMaxRAMFraction, 4, \ | |
1064 | 2069 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
2070 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
2071 \ | |
2072 product(uintx, MinRAMFraction, 2, \ | |
14358 | 2073 "Minimum fraction (1/n) of real memory used for maximum heap " \ |
1064 | 2074 "size on systems with small physical memory size") \ |
2075 \ | |
2076 product(uintx, InitialRAMFraction, 64, \ | |
2077 "Fraction (1/n) of real memory used for initial heap size") \ | |
0 | 2078 \ |
8854
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2079 develop(uintx, MaxVirtMemFraction, 2, \ |
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2080 "Maximum fraction (1/n) of virtual memory used for ergonomically "\ |
8854
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|
2081 "determining maximum heap size") \ |
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|
2082 \ |
0 | 2083 product(bool, UseAutoGCSelectPolicy, false, \ |
2084 "Use automatic collection selection policy") \ | |
2085 \ | |
2086 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
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|
2087 "Automatic GC selection pause threshold in milliseconds") \ |
0 | 2088 \ |
2089 product(bool, UseAdaptiveSizePolicy, true, \ | |
2090 "Use adaptive generation sizing policies") \ | |
2091 \ | |
2092 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
2093 "Use adaptive survivor sizing policies") \ | |
2094 \ | |
2095 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
2096 "Use adaptive young-old sizing policies at minor collections") \ | |
2097 \ | |
2098 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
2099 "Use adaptive young-old sizing policies at major collections") \ | |
2100 \ | |
2101 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
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|
2102 "Include statistics from System.gc() for adaptive size policy") \ |
0 | 2103 \ |
2104 product(bool, UseAdaptiveGCBoundary, false, \ | |
2105 "Allow young-old boundary to move") \ | |
2106 \ | |
2107 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
2108 "Trace young-old boundary moves") \ | |
2109 \ | |
2110 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
2111 "Resize the virtual spaces of the young or old generations") \ | |
2112 \ | |
2113 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
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|
2114 "Policy for changing generation size for throughput goals") \ |
0 | 2115 \ |
2116 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
2117 "Policy for changing generation size for pause goals") \ | |
2118 \ | |
2119 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
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|
2120 "Adjust tenured generation to achieve a minor pause goal") \ |
0 | 2121 \ |
2122 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
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|
2123 "Adjust young generation to achieve a major pause goal") \ |
0 | 2124 \ |
2125 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
2126 "Number of steps where heuristics is used before data is used") \ | |
2127 \ | |
2128 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
2129 "Number of collections before the adaptive sizing is started") \ | |
2130 \ | |
2131 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
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2132 "Collection interval for printing information; zero means never") \ |
0 | 2133 \ |
2134 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
2135 "Use adaptive minimum footprint as a goal") \ | |
2136 \ | |
2137 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
2138 "Weight given to exponential resizing, between 0 and 100") \ | |
2139 \ | |
2140 product(uintx, AdaptiveTimeWeight, 25, \ | |
2141 "Weight given to time in adaptive policy, between 0 and 100") \ | |
2142 \ | |
2143 product(uintx, PausePadding, 1, \ | |
2144 "How much buffer to keep for pause time") \ | |
2145 \ | |
2146 product(uintx, PromotedPadding, 3, \ | |
2147 "How much buffer to keep for promotion failure") \ | |
2148 \ | |
2149 product(uintx, SurvivorPadding, 3, \ | |
2150 "How much buffer to keep for survivor overflow") \ | |
2151 \ | |
2152 product(uintx, ThresholdTolerance, 10, \ | |
2153 "Allowed collection cost difference between generations") \ | |
2154 \ | |
2155 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
1064 | 2156 "If collection costs are within margin, reduce both by full " \ |
2157 "delta") \ | |
0 | 2158 \ |
2159 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
2160 "Adaptive size percentage change in young generation") \ | |
2161 \ | |
2162 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
2163 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
2164 \ | |
2165 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
2166 "Decay factor to YoungedGenerationSizeSupplement") \ | |
2167 \ | |
2168 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
2169 "Adaptive size percentage change in tenured generation") \ | |
2170 \ | |
2171 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
2172 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
2173 \ | |
2174 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
2175 "Decay factor to TenuredGenerationSizeIncrement") \ | |
2176 \ | |
6818 | 2177 product(uintx, MaxGCPauseMillis, max_uintx, \ |
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2178 "Adaptive size policy maximum GC pause time goal in millisecond, "\ |
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2179 "or (G1 Only) the maximum GC time per MMU time slice") \ |
751 | 2180 \ |
1610
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2181 product(uintx, GCPauseIntervalMillis, 0, \ |
751 | 2182 "Time slice for MMU specification") \ |
0 | 2183 \ |
2184 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
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2185 "Adaptive size policy maximum GC minor pause time goal " \ |
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2186 "in millisecond") \ |
0 | 2187 \ |
2188 product(uintx, GCTimeRatio, 99, \ | |
2189 "Adaptive size policy application time to GC time ratio") \ | |
2190 \ | |
2191 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
2192 "Adaptive size scale down factor for shrinking") \ | |
2193 \ | |
2194 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
2195 "Adaptive size decays the major cost for long major intervals") \ | |
2196 \ | |
2197 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
2198 "Time scale over which major costs decay") \ | |
2199 \ | |
2200 product(uintx, MinSurvivorRatio, 3, \ | |
2201 "Minimum ratio of young generation/survivor space size") \ | |
2202 \ | |
2203 product(uintx, InitialSurvivorRatio, 8, \ | |
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|
2204 "Initial ratio of young generation/survivor space size") \ |
0 | 2205 \ |
2206 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
2207 "Estimate of footprint other than Java Heap") \ | |
2208 \ | |
2209 product(bool, UseGCOverheadLimit, true, \ | |
2210 "Use policy to limit of proportion of time spent in GC " \ | |
2211 "before an OutOfMemory error is thrown") \ | |
2212 \ | |
2213 product(uintx, GCTimeLimit, 98, \ | |
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2214 "Limit of the proportion of time spent in GC before " \ |
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2215 "an OutOfMemoryError is thrown (used with GCHeapFreeLimit)") \ |
0 | 2216 \ |
2217 product(uintx, GCHeapFreeLimit, 2, \ | |
2218 "Minimum percentage of free space after a full GC before an " \ | |
2219 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
2220 \ | |
2221 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
2222 "Number of consecutive collections before gc time limit fires") \ | |
2223 \ | |
2224 product(bool, PrintAdaptiveSizePolicy, false, \ | |
2225 "Print information about AdaptiveSizePolicy") \ | |
2226 \ | |
2227 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
2228 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
2229 \ | |
2230 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
2231 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
2232 \ | |
2233 product(intx, PrefetchFieldsAhead, -1, \ | |
2234 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
2235 \ | |
10186
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|
2236 diagnostic(bool, VerifySilently, false, \ |
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2237 "Do not print the verification progress") \ |
10186
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|
2238 \ |
9071
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|
2239 diagnostic(bool, VerifyDuringStartup, false, \ |
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|
2240 "Verify memory system before executing any Java code " \ |
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|
2241 "during VM initialization") \ |
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|
2242 \ |
0 | 2243 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
2244 "Verify system before exiting") \ | |
2245 \ | |
2246 diagnostic(bool, VerifyBeforeGC, false, \ | |
2247 "Verify memory system before GC") \ | |
2248 \ | |
2249 diagnostic(bool, VerifyAfterGC, false, \ | |
2250 "Verify memory system after GC") \ | |
2251 \ | |
2252 diagnostic(bool, VerifyDuringGC, false, \ | |
2253 "Verify memory system during GC (between phases)") \ | |
2254 \ | |
390 | 2255 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
2256 "Enable parallel memory system verification") \ | |
2257 \ | |
1166 | 2258 diagnostic(bool, DeferInitialCardMark, false, \ |
2259 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
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2260 "may arise from new_pre_store_barrier") \ |
1166 | 2261 \ |
0 | 2262 diagnostic(bool, VerifyRememberedSets, false, \ |
2263 "Verify GC remembered sets") \ | |
2264 \ | |
2265 diagnostic(bool, VerifyObjectStartArray, true, \ | |
2266 "Verify GC object start array if verify before/after") \ | |
2267 \ | |
2268 product(bool, DisableExplicitGC, false, \ | |
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2269 "Ignore calls to System.gc()") \ |
0 | 2270 \ |
2271 notproduct(bool, CheckMemoryInitialization, false, \ | |
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2272 "Check memory initialization") \ |
0 | 2273 \ |
2274 product(bool, CollectGen0First, false, \ | |
2275 "Collect youngest generation before each full GC") \ | |
2276 \ | |
2277 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
2278 "Bind CMS Thread to CPU if possible") \ | |
2279 \ | |
2280 diagnostic(uintx, CPUForCMSThread, 0, \ | |
2281 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
2282 \ | |
2283 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
2284 "Bind GCTaskThreads to CPUs if possible") \ | |
2285 \ | |
2286 product(bool, UseGCTaskAffinity, false, \ | |
2287 "Use worker affinity when asking for GCTasks") \ | |
2288 \ | |
2289 product(uintx, ProcessDistributionStride, 4, \ | |
2290 "Stride through processors when distributing processes") \ | |
2291 \ | |
2292 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
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2293 "Number of times the coordinator GC thread will sleep while " \ |
0 | 2294 "yielding before giving up and resuming GC") \ |
2295 \ | |
2296 product(uintx, CMSYieldSleepCount, 0, \ | |
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2297 "Number of times a GC thread (minus the coordinator) " \ |
0 | 2298 "will sleep while yielding before giving up and resuming GC") \ |
2299 \ | |
2300 /* gc tracing */ \ | |
2301 manageable(bool, PrintGC, false, \ | |
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2302 "Print message at garbage collection") \ |
0 | 2303 \ |
2304 manageable(bool, PrintGCDetails, false, \ | |
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2305 "Print more details at garbage collection") \ |
0 | 2306 \ |
2307 manageable(bool, PrintGCDateStamps, false, \ | |
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2308 "Print date stamps at garbage collection") \ |
0 | 2309 \ |
2310 manageable(bool, PrintGCTimeStamps, false, \ | |
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2311 "Print timestamps at garbage collection") \ |
0 | 2312 \ |
2313 product(bool, PrintGCTaskTimeStamps, false, \ | |
2314 "Print timestamps for individual gc worker thread tasks") \ | |
2315 \ | |
2316 develop(intx, ConcGCYieldTimeout, 0, \ | |
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2317 "If non-zero, assert that GC threads yield within this " \ |
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2318 "number of milliseconds") \ |
0 | 2319 \ |
2320 notproduct(bool, TraceMarkSweep, false, \ | |
2321 "Trace mark sweep") \ | |
2322 \ | |
2323 product(bool, PrintReferenceGC, false, \ | |
2324 "Print times spent handling reference objects during GC " \ | |
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2325 "(enabled only when PrintGCDetails)") \ |
0 | 2326 \ |
2327 develop(bool, TraceReferenceGC, false, \ | |
2328 "Trace handling of soft/weak/final/phantom references") \ | |
2329 \ | |
2330 develop(bool, TraceFinalizerRegistration, false, \ | |
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2331 "Trace registration of final references") \ |
0 | 2332 \ |
2333 notproduct(bool, TraceScavenge, false, \ | |
2334 "Trace scavenge") \ | |
2335 \ | |
2336 product_rw(bool, TraceClassLoading, false, \ | |
2337 "Trace all classes loaded") \ | |
2338 \ | |
2339 product(bool, TraceClassLoadingPreorder, false, \ | |
2340 "Trace all classes loaded in order referenced (not loaded)") \ | |
2341 \ | |
2342 product_rw(bool, TraceClassUnloading, false, \ | |
2343 "Trace unloading of classes") \ | |
2344 \ | |
2345 product_rw(bool, TraceLoaderConstraints, false, \ | |
2346 "Trace loader constraints") \ | |
2347 \ | |
6725
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|
2348 develop(bool, TraceClassLoaderData, false, \ |
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2349 "Trace class loader loader_data lifetime") \ |
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|
2350 \ |
7446
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|
2351 product(uintx, InitialBootClassLoaderMetaspaceSize, \ |
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|
2352 NOT_LP64(2200*K) LP64_ONLY(4*M), \ |
6725
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|
2353 "Initial size of the boot class loader data metaspace") \ |
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|
2354 \ |
0 | 2355 product(bool, TraceGen0Time, false, \ |
2356 "Trace accumulated time for Gen 0 collection") \ | |
2357 \ | |
2358 product(bool, TraceGen1Time, false, \ | |
2359 "Trace accumulated time for Gen 1 collection") \ | |
2360 \ | |
2361 product(bool, PrintTenuringDistribution, false, \ | |
2362 "Print tenuring age information") \ | |
2363 \ | |
2364 product_rw(bool, PrintHeapAtGC, false, \ | |
2365 "Print heap layout before and after each GC") \ | |
2366 \ | |
838
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|
2367 product_rw(bool, PrintHeapAtGCExtended, false, \ |
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2368 "Print extended information about the layout of the heap " \ |
838
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|
2369 "when -XX:+PrintHeapAtGC is set") \ |
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|
2370 \ |
0 | 2371 product(bool, PrintHeapAtSIGBREAK, true, \ |
2372 "Print heap layout in response to SIGBREAK") \ | |
2373 \ | |
615
c6c601a0f2d6
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changeset
|
2374 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
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|
2375 "Print a class histogram before any major stop-world GC") \ |
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|
2376 \ |
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|
2377 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
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|
2378 "Print a class histogram after any major stop-world GC") \ |
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|
2379 \ |
0 | 2380 manageable(bool, PrintClassHistogram, false, \ |
2381 "Print a histogram of class instances") \ | |
2382 \ | |
2383 develop(bool, TraceWorkGang, false, \ | |
2384 "Trace activities of work gangs") \ | |
2385 \ | |
2386 product(bool, TraceParallelOldGCTasks, false, \ | |
2387 "Trace multithreaded GC activity") \ | |
2388 \ | |
2389 develop(bool, TraceBlockOffsetTable, false, \ | |
2390 "Print BlockOffsetTable maps") \ | |
2391 \ | |
2392 develop(bool, TraceCardTableModRefBS, false, \ | |
2393 "Print CardTableModRefBS maps") \ | |
2394 \ | |
2395 develop(bool, TraceGCTaskManager, false, \ | |
2396 "Trace actions of the GC task manager") \ | |
2397 \ | |
2398 develop(bool, TraceGCTaskQueue, false, \ | |
2399 "Trace actions of the GC task queues") \ | |
2400 \ | |
6818 | 2401 diagnostic(bool, TraceGCTaskThread, false, \ |
0 | 2402 "Trace actions of the GC task threads") \ |
2403 \ | |
2404 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
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2405 "Print the time taken by each phase in ParallelOldGC " \ |
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2406 "(PrintGCDetails must also be enabled)") \ |
0 | 2407 \ |
2408 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
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2409 "Trace marking phase in ParallelOldGC") \ |
0 | 2410 \ |
2411 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
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2412 "Trace summary phase in ParallelOldGC") \ |
0 | 2413 \ |
2414 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
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2415 "Trace compaction phase in ParallelOldGC") \ |
0 | 2416 \ |
2417 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
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2418 "Trace dense prefix computation for ParallelOldGC") \ |
0 | 2419 \ |
2420 develop(bool, IgnoreLibthreadGPFault, false, \ | |
2421 "Suppress workaround for libthread GP fault") \ | |
2422 \ | |
139
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2423 product(bool, PrintJNIGCStalls, false, \ |
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2424 "Print diagnostic message when GC is stalled " \ |
139
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2425 "by JNI critical section") \ |
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2426 \ |
10405 | 2427 experimental(double, ObjectCountCutOffPercent, 0.5, \ |
2428 "The percentage of the used heap that the instances of a class " \ | |
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2429 "must occupy for the class to generate a trace event") \ |
10405 | 2430 \ |
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|
2431 /* GC log rotation setting */ \ |
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|
2432 \ |
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|
2433 product(bool, UseGCLogFileRotation, false, \ |
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2434 "Rotate gclog files (for long running applications). It requires "\ |
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2435 "-Xloggc:<filename>") \ |
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|
2436 \ |
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2437 product(uintx, NumberOfGCLogFiles, 0, \ |
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2438 "Number of gclog files in rotation " \ |
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2439 "(default: 0, no rotation)") \ |
3767
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2440 \ |
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2441 product(uintx, GCLogFileSize, 0, \ |
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2442 "GC log file size (default: 0 bytes, no rotation). " \ |
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2443 "It requires UseGCLogFileRotation") \ |
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|
2444 \ |
0 | 2445 /* JVMTI heap profiling */ \ |
2446 \ | |
2447 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
2448 "Trace JVMTI object tagging calls") \ | |
2449 \ | |
2450 diagnostic(bool, VerifyBeforeIteration, false, \ | |
2451 "Verify memory system before JVMTI iteration") \ | |
2452 \ | |
2453 /* compiler interface */ \ | |
2454 \ | |
2455 develop(bool, CIPrintCompilerName, false, \ | |
2456 "when CIPrint is active, print the name of the active compiler") \ | |
2457 \ | |
2458 develop(bool, CIPrintCompileQueue, false, \ | |
2459 "display the contents of the compile queue whenever a " \ | |
2460 "compilation is enqueued") \ | |
2461 \ | |
2462 develop(bool, CIPrintRequests, false, \ | |
2463 "display every request for compilation") \ | |
2464 \ | |
2465 product(bool, CITime, false, \ | |
2466 "collect timing information for compilation") \ | |
2467 \ | |
2468 develop(bool, CITimeEach, false, \ | |
2469 "display timing information after each successful compilation") \ | |
2470 \ | |
6843 | 2471 develop(bool, CICountOSR, false, \ |
0 | 2472 "use a separate counter when assigning ids to osr compilations") \ |
2473 \ | |
2474 develop(bool, CICompileNatives, true, \ | |
2475 "compile native methods if supported by the compiler") \ | |
2476 \ | |
2477 develop_pd(bool, CICompileOSR, \ | |
2478 "compile on stack replacement methods if supported by the " \ | |
2479 "compiler") \ | |
2480 \ | |
2481 develop(bool, CIPrintMethodCodes, false, \ | |
2482 "print method bytecodes of the compiled code") \ | |
2483 \ | |
2484 develop(bool, CIPrintTypeFlow, false, \ | |
2485 "print the results of ciTypeFlow analysis") \ | |
2486 \ | |
2487 develop(bool, CITraceTypeFlow, false, \ | |
2488 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
2489 \ | |
2403 | 2490 develop(intx, OSROnlyBCI, -1, \ |
2491 "OSR only at this bci. Negative values mean exclude that bci") \ | |
2492 \ | |
0 | 2493 /* compiler */ \ |
2494 \ | |
2495 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
2496 "Number of compiler threads to run") \ | |
2497 \ | |
2498 product(intx, CompilationPolicyChoice, 0, \ | |
2499 "which compilation policy (0/1)") \ | |
2500 \ | |
2501 develop(bool, UseStackBanging, true, \ | |
2502 "use stack banging for stack overflow checks (required for " \ | |
2503 "proper StackOverflow handling; disable only to measure cost " \ | |
2504 "of stackbanging)") \ | |
2505 \ | |
2506 develop(bool, UseStrictFP, true, \ | |
2507 "use strict fp if modifier strictfp is set") \ | |
2508 \ | |
2509 develop(bool, GenerateSynchronizationCode, true, \ | |
2510 "generate locking/unlocking code for synchronized methods and " \ | |
2511 "monitors") \ | |
2512 \ | |
2513 develop(bool, GenerateCompilerNullChecks, true, \ | |
2514 "Generate explicit null checks for loads/stores/calls") \ | |
2515 \ | |
2516 develop(bool, GenerateRangeChecks, true, \ | |
2517 "Generate range checks for array accesses") \ | |
2518 \ | |
2519 develop_pd(bool, ImplicitNullChecks, \ | |
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2520 "Generate code for implicit null checks") \ |
0 | 2521 \ |
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2522 product_pd(bool, TrapBasedNullChecks, \ |
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2523 "Generate code for null checks that uses a cmp and trap " \ |
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2524 "instruction raising SIGTRAP. This is only used if an access to" \ |
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2525 "null (+offset) will not raise a SIGSEGV, i.e.," \ |
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2526 "ImplicitNullChecks don't work (PPC64).") \ |
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2527 \ |
0 | 2528 product(bool, PrintSafepointStatistics, false, \ |
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2529 "Print statistics about safepoint synchronization") \ |
0 | 2530 \ |
2531 product(intx, PrintSafepointStatisticsCount, 300, \ | |
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2532 "Total number of safepoint statistics collected " \ |
0 | 2533 "before printing them out") \ |
2534 \ | |
2535 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
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2536 "Print safepoint statistics only when safepoint takes " \ |
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2537 "more than PrintSafepointSatisticsTimeout in millis") \ |
0 | 2538 \ |
1321
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2539 product(bool, TraceSafepointCleanupTime, false, \ |
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2540 "Print the break down of clean up tasks performed during " \ |
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2541 "safepoint") \ |
1321
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2542 \ |
0 | 2543 product(bool, Inline, true, \ |
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2544 "Enable inlining") \ |
0 | 2545 \ |
2546 product(bool, ClipInlining, true, \ | |
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2547 "Clip inlining if aggregate method exceeds DesiredMethodLimit") \ |
0 | 2548 \ |
2549 develop(bool, UseCHA, true, \ | |
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2550 "Enable CHA") \ |
0 | 2551 \ |
2552 product(bool, UseTypeProfile, true, \ | |
2553 "Check interpreter profile for historically monomorphic calls") \ | |
2554 \ | |
2555 notproduct(bool, TimeCompiler, false, \ | |
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2556 "Time the compiler") \ |
0 | 2557 \ |
2558 diagnostic(bool, PrintInlining, false, \ | |
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2559 "Print inlining optimizations") \ |
0 | 2560 \ |
643
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|
2561 product(bool, UsePopCountInstruction, false, \ |
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|
2562 "Use population count instruction") \ |
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2563 \ |
0 | 2564 develop(bool, EagerInitialization, false, \ |
2565 "Eagerly initialize classes if possible") \ | |
2566 \ | |
2567 develop(bool, TraceMethodReplacement, false, \ | |
2568 "Print when methods are replaced do to recompilation") \ | |
2569 \ | |
2570 develop(bool, PrintMethodFlushing, false, \ | |
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2571 "Print the nmethods being flushed") \ |
0 | 2572 \ |
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2573 diagnostic(bool, PrintMethodFlushingStatistics, false, \ |
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|
2574 "print statistics about method flushing") \ |
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2575 \ |
0 | 2576 develop(bool, UseRelocIndex, false, \ |
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2577 "Use an index to speed random access to relocations") \ |
0 | 2578 \ |
2579 develop(bool, StressCodeBuffers, false, \ | |
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2580 "Exercise code buffer expansion and other rare state changes") \ |
0 | 2581 \ |
2582 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
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2583 "Generate extra debugging information for non-safepoints in " \ |
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2584 "nmethods") \ |
0 | 2585 \ |
4066 | 2586 product(bool, PrintVMOptions, false, \ |
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2587 "Print flags that appeared on the command line") \ |
0 | 2588 \ |
564 | 2589 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
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2590 "Ignore unrecognized VM options") \ |
564 | 2591 \ |
1150 | 2592 product(bool, PrintCommandLineFlags, false, \ |
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2593 "Print flags specified on command line or set by ergonomics") \ |
1150 | 2594 \ |
2595 product(bool, PrintFlagsInitial, false, \ | |
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2596 "Print all VM flags before argument processing and exit VM") \ |
1150 | 2597 \ |
2598 product(bool, PrintFlagsFinal, false, \ | |
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2599 "Print all VM flags after argument and ergonomic processing") \ |
1150 | 2600 \ |
1768
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2601 notproduct(bool, PrintFlagsWithComments, false, \ |
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2602 "Print all VM flags with default values and descriptions and " \ |
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2603 "exit") \ |
1768
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2604 \ |
0 | 2605 diagnostic(bool, SerializeVMOutput, true, \ |
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2606 "Use a mutex to serialize output to tty and LogFile") \ |
0 | 2607 \ |
2608 diagnostic(bool, DisplayVMOutput, true, \ | |
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2609 "Display all VM output on the tty, independently of LogVMOutput") \ |
0 | 2610 \ |
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|
2611 diagnostic(bool, LogVMOutput, false, \ |
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2612 "Save VM output to LogFile") \ |
0 | 2613 \ |
2614 diagnostic(ccstr, LogFile, NULL, \ | |
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2615 "If LogVMOutput or LogCompilation is on, save VM output to " \ |
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|
2616 "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)")\ |
0 | 2617 \ |
2618 product(ccstr, ErrorFile, NULL, \ | |
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|
2619 "If an error occurs, save the error data to this file " \ |
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2620 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ |
0 | 2621 \ |
2622 product(bool, DisplayVMOutputToStderr, false, \ | |
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2623 "If DisplayVMOutput is true, display all VM output to stderr") \ |
0 | 2624 \ |
2625 product(bool, DisplayVMOutputToStdout, false, \ | |
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|
2626 "If DisplayVMOutput is true, display all VM output to stdout") \ |
0 | 2627 \ |
2628 product(bool, UseHeavyMonitors, false, \ | |
2629 "use heavyweight instead of lightweight Java monitors") \ | |
2630 \ | |
6162 | 2631 product(bool, PrintStringTableStatistics, false, \ |
2632 "print statistics about the StringTable and SymbolTable") \ | |
2633 \ | |
12275
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|
2634 diagnostic(bool, VerifyStringTableAtExit, false, \ |
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|
2635 "verify StringTable contents at exit") \ |
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|
2636 \ |
0 | 2637 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
2638 "print histogram of the symbol table") \ | |
2639 \ | |
2640 notproduct(bool, ExitVMOnVerifyError, false, \ | |
2641 "standard exit from VM if bytecode verify error " \ | |
2642 "(only in debug mode)") \ | |
2643 \ | |
2644 notproduct(ccstr, AbortVMOnException, NULL, \ | |
2645 "Call fatal if this exception is thrown. Example: " \ | |
2646 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
2647 \ | |
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|
2648 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
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2649 "Call fatal if the exception pointed by AbortVMOnException " \ |
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2650 "has this message") \ |
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2651 \ |
0 | 2652 develop(bool, DebugVtables, false, \ |
2653 "add debugging code to vtable dispatch") \ | |
2654 \ | |
2655 develop(bool, PrintVtables, false, \ | |
2656 "print vtables when printing klass") \ | |
2657 \ | |
2658 notproduct(bool, PrintVtableStats, false, \ | |
2659 "print vtables stats at end of run") \ | |
2660 \ | |
2661 develop(bool, TraceCreateZombies, false, \ | |
2662 "trace creation of zombie nmethods") \ | |
2663 \ | |
2664 notproduct(bool, IgnoreLockingAssertions, false, \ | |
2665 "disable locking assertions (for speed)") \ | |
2666 \ | |
2667 product(bool, RangeCheckElimination, true, \ | |
8860 | 2668 "Eliminate range checks") \ |
0 | 2669 \ |
2670 develop_pd(bool, UncommonNullCast, \ | |
2671 "track occurrences of null in casts; adjust compiler tactics") \ | |
2672 \ | |
2673 develop(bool, TypeProfileCasts, true, \ | |
2674 "treat casts like calls for purposes of type profiling") \ | |
2675 \ | |
2676 develop(bool, DelayCompilationDuringStartup, true, \ | |
2677 "Delay invoking the compiler until main application class is " \ | |
2678 "loaded") \ | |
2679 \ | |
2680 develop(bool, CompileTheWorld, false, \ | |
2681 "Compile all methods in all classes in bootstrap class path " \ | |
2682 "(stress test)") \ | |
2683 \ | |
2684 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
2685 "Preload all classes used by a class before start loading") \ | |
2686 \ | |
1188
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2687 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
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2688 "Force a safepoint every n compiles so sweeper can keep up") \ |
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2689 \ |
0 | 2690 develop(bool, FillDelaySlots, true, \ |
2691 "Fill delay slots (on SPARC only)") \ | |
2692 \ | |
2693 develop(bool, TimeLivenessAnalysis, false, \ | |
2694 "Time computation of bytecode liveness analysis") \ | |
2695 \ | |
2696 develop(bool, TraceLivenessGen, false, \ | |
2697 "Trace the generation of liveness analysis information") \ | |
2698 \ | |
2699 notproduct(bool, TraceLivenessQuery, false, \ | |
2700 "Trace queries of liveness analysis information") \ | |
2701 \ | |
2702 notproduct(bool, CollectIndexSetStatistics, false, \ | |
2703 "Collect information about IndexSets") \ | |
2704 \ | |
2705 develop(bool, UseLoopSafepoints, true, \ | |
2706 "Generate Safepoint nodes in every loop") \ | |
2707 \ | |
2708 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
2709 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
2710 "Inline allocations larger than this in doublewords must go slow")\ | |
2711 \ | |
2712 product(bool, AggressiveOpts, false, \ | |
2713 "Enable aggressive optimizations - see arguments.cpp") \ | |
2714 \ | |
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2715 product_pd(uintx, TypeProfileLevel, \ |
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2716 "=XYZ, with Z: Type profiling of arguments at call; " \ |
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2717 "Y: Type profiling of return value at call; " \ |
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|
2718 "X: Type profiling of parameters to methods; " \ |
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|
2719 "X, Y and Z in 0=off ; 1=jsr292 only; 2=all methods") \ |
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2720 \ |
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|
2721 product(intx, TypeProfileArgsLimit, 2, \ |
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|
2722 "max number of call arguments to consider for type profiling") \ |
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|
2723 \ |
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2724 product(intx, TypeProfileParmsLimit, 2, \ |
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|
2725 "max number of incoming parameters to consider for type profiling"\ |
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|
2726 ", -1 for all") \ |
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|
2727 \ |
0 | 2728 /* statistics */ \ |
2729 develop(bool, CountCompiledCalls, false, \ | |
12836
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|
2730 "Count method invocations") \ |
0 | 2731 \ |
2732 notproduct(bool, CountRuntimeCalls, false, \ | |
12836
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|
2733 "Count VM runtime calls") \ |
0 | 2734 \ |
2735 develop(bool, CountJNICalls, false, \ | |
12836
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|
2736 "Count jni method invocations") \ |
0 | 2737 \ |
2738 notproduct(bool, CountJVMCalls, false, \ | |
12836
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|
2739 "Count jvm method invocations") \ |
0 | 2740 \ |
2741 notproduct(bool, CountRemovableExceptions, false, \ | |
12836
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|
2742 "Count exceptions that could be replaced by branches due to " \ |
0 | 2743 "inlining") \ |
2744 \ | |
2745 notproduct(bool, ICMissHistogram, false, \ | |
12836
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|
2746 "Produce histogram of IC misses") \ |
0 | 2747 \ |
2748 notproduct(bool, PrintClassStatistics, false, \ | |
12836
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|
2749 "Print class statistics at end of run") \ |
0 | 2750 \ |
2751 notproduct(bool, PrintMethodStatistics, false, \ | |
12836
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|
2752 "Print method statistics at end of run") \ |
0 | 2753 \ |
2754 /* interpreter */ \ | |
2755 develop(bool, ClearInterpreterLocals, false, \ | |
2756 "Always clear local variables of interpreter activations upon " \ | |
2757 "entry") \ | |
2758 \ | |
2759 product_pd(bool, RewriteBytecodes, \ | |
2760 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
2761 \ | |
2762 product_pd(bool, RewriteFrequentPairs, \ | |
2763 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
2764 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
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76
diff
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|
2765 diagnostic(bool, PrintInterpreter, false, \ |
12836
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|
2766 "Print the generated interpreter code") \ |
0 | 2767 \ |
2768 product(bool, UseInterpreter, true, \ | |
2769 "Use interpreter for non-compiled methods") \ | |
2770 \ | |
2771 develop(bool, UseFastSignatureHandlers, true, \ | |
2772 "Use fast signature handlers for native calls") \ | |
2773 \ | |
2774 product(bool, UseLoopCounter, true, \ | |
2775 "Increment invocation counter on backward branch") \ | |
2776 \ | |
2777 product(bool, UseFastEmptyMethods, true, \ | |
2778 "Use fast method entry code for empty methods") \ | |
2779 \ | |
2780 product(bool, UseFastAccessorMethods, true, \ | |
2781 "Use fast method entry code for accessor methods") \ | |
2782 \ | |
2783 product_pd(bool, UseOnStackReplacement, \ | |
12836
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|
2784 "Use on stack replacement, calls runtime if invoc. counter " \ |
b4d8a3d4db73
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|
2785 "overflows in loop") \ |
0 | 2786 \ |
2787 notproduct(bool, TraceOnStackReplacement, false, \ | |
2788 "Trace on stack replacement") \ | |
2789 \ | |
2790 product_pd(bool, PreferInterpreterNativeStubs, \ | |
2791 "Use always interpreter stubs for native methods invoked via " \ | |
2792 "interpreter") \ | |
2793 \ | |
2794 develop(bool, CountBytecodes, false, \ | |
2795 "Count number of bytecodes executed") \ | |
2796 \ | |
2797 develop(bool, PrintBytecodeHistogram, false, \ | |
2798 "Print histogram of the executed bytecodes") \ | |
2799 \ | |
2800 develop(bool, PrintBytecodePairHistogram, false, \ | |
2801 "Print histogram of the executed bytecode pairs") \ | |
2802 \ | |
100
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76
diff
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|
2803 diagnostic(bool, PrintSignatureHandlers, false, \ |
0 | 2804 "Print code generated for native method signature handlers") \ |
2805 \ | |
2806 develop(bool, VerifyOops, false, \ | |
2807 "Do plausibility checks for oops") \ | |
2808 \ | |
2809 develop(bool, CheckUnhandledOops, false, \ | |
2810 "Check for unhandled oops in VM code") \ | |
2811 \ | |
2812 develop(bool, VerifyJNIFields, trueInDebug, \ | |
2813 "Verify jfieldIDs for instance fields") \ | |
2814 \ | |
2815 notproduct(bool, VerifyJNIEnvThread, false, \ | |
2816 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
2817 "from JNI") \ | |
2818 \ | |
2819 develop(bool, VerifyFPU, false, \ | |
2820 "Verify FPU state (check for NaN's, etc.)") \ | |
2821 \ | |
2822 develop(bool, VerifyThread, false, \ | |
2823 "Watch the thread register for corruption (SPARC only)") \ | |
2824 \ | |
2825 develop(bool, VerifyActivationFrameSize, false, \ | |
2826 "Verify that activation frame didn't become smaller than its " \ | |
2827 "minimal size") \ | |
2828 \ | |
2829 develop(bool, TraceFrequencyInlining, false, \ | |
2830 "Trace frequency based inlining") \ | |
2831 \ | |
2832 develop_pd(bool, InlineIntrinsics, \ | |
12836
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|
2833 "Inline intrinsics that can be statically resolved") \ |
0 | 2834 \ |
2835 product_pd(bool, ProfileInterpreter, \ | |
12836
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|
2836 "Profile at the bytecode level during interpretation") \ |
0 | 2837 \ |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14412
diff
changeset
|
2838 develop(bool, TraceProfileInterpreter, false, \ |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14412
diff
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|
2839 "Trace profiling at the bytecode level during interpretation. " \ |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14412
diff
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|
2840 "This outputs the profiling information collected to improve " \ |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14412
diff
changeset
|
2841 "jit compilation.") \ |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14412
diff
changeset
|
2842 \ |
0 | 2843 develop_pd(bool, ProfileTraps, \ |
2844 "Profile deoptimization traps at the bytecode level") \ | |
2845 \ | |
2846 product(intx, ProfileMaturityPercentage, 20, \ | |
2847 "number of method invocations/branches (expressed as % of " \ | |
2848 "CompileThreshold) before using the method's profile") \ | |
2849 \ | |
2850 develop(bool, PrintMethodData, false, \ | |
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|
2851 "Print the results of +ProfileInterpreter at end of run") \ |
0 | 2852 \ |
2853 develop(bool, VerifyDataPointer, trueInDebug, \ | |
2854 "Verify the method data pointer during interpreter profiling") \ | |
2855 \ | |
2856 develop(bool, VerifyCompiledCode, false, \ | |
2857 "Include miscellaneous runtime verifications in nmethod code; " \ | |
1064 | 2858 "default off because it disturbs nmethod size heuristics") \ |
0 | 2859 \ |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2860 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2861 "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
|
2862 "Test only") \ |
0 | 2863 \ |
2864 /* compilation */ \ | |
2865 product(bool, UseCompiler, true, \ | |
12836
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|
2866 "Use Just-In-Time compilation") \ |
0 | 2867 \ |
2868 develop(bool, TraceCompilationPolicy, false, \ | |
2869 "Trace compilation policy") \ | |
2870 \ | |
2871 develop(bool, TimeCompilationPolicy, false, \ | |
2872 "Time the compilation policy") \ | |
2873 \ | |
2874 product(bool, UseCounterDecay, true, \ | |
12836
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|
2875 "Adjust recompilation counters") \ |
0 | 2876 \ |
2877 develop(intx, CounterHalfLifeTime, 30, \ | |
12836
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|
2878 "Half-life time of invocation counters (in seconds)") \ |
0 | 2879 \ |
2880 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
12836
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|
2881 "The minimum interval (in milliseconds) between invocation of " \ |
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|
2882 "CounterDecay") \ |
0 | 2883 \ |
2884 product(bool, AlwaysCompileLoopMethods, false, \ | |
12836
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|
2885 "When using recompilation, never interpret methods " \ |
0 | 2886 "containing loops") \ |
2887 \ | |
2888 product(bool, DontCompileHugeMethods, true, \ | |
12836
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|
2889 "Do not compile methods > HugeMethodLimit") \ |
0 | 2890 \ |
2891 /* Bytecode escape analysis estimation. */ \ | |
2892 product(bool, EstimateArgEscape, true, \ | |
2893 "Analyze bytecodes to estimate escape state of arguments") \ | |
2894 \ | |
2895 product(intx, BCEATraceLevel, 0, \ | |
2896 "How much tracing to do of bytecode escape analysis estimates") \ | |
2897 \ | |
2898 product(intx, MaxBCEAEstimateLevel, 5, \ | |
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|
2899 "Maximum number of nested calls that are analyzed by BC EA") \ |
0 | 2900 \ |
2901 product(intx, MaxBCEAEstimateSize, 150, \ | |
12836
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|
2902 "Maximum bytecode size of a method to be analyzed by BC EA") \ |
0 | 2903 \ |
2904 product(intx, AllocatePrefetchStyle, 1, \ | |
2905 "0 = no prefetch, " \ | |
2906 "1 = prefetch instructions for each allocation, " \ | |
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2907 "2 = use TLAB watermark to gate allocation prefetch, " \ |
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2908 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
0 | 2909 \ |
2910 product(intx, AllocatePrefetchDistance, -1, \ | |
2911 "Distance to prefetch ahead of allocation pointer") \ | |
2912 \ | |
3854 | 2913 product(intx, AllocatePrefetchLines, 3, \ |
2914 "Number of lines to prefetch ahead of array allocation pointer") \ | |
2915 \ | |
2916 product(intx, AllocateInstancePrefetchLines, 1, \ | |
12836
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|
2917 "Number of lines to prefetch ahead of instance allocation " \ |
b4d8a3d4db73
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changeset
|
2918 "pointer") \ |
0 | 2919 \ |
2920 product(intx, AllocatePrefetchStepSize, 16, \ | |
2921 "Step size in bytes of sequential prefetch instructions") \ | |
2922 \ | |
2923 product(intx, AllocatePrefetchInstr, 0, \ | |
2924 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
2925 \ | |
2926 /* 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
|
2927 product(bool, TraceDeoptimization, false, \ |
0 | 2928 "Trace deoptimization") \ |
2929 \ | |
4668
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2930 product(bool, PrintDeoptimizationDetails, false, \ |
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2931 "Print more information about deoptimization") \ |
3dbcd1013cc8
added flag PrintDeoptimizationDetails
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4561
diff
changeset
|
2932 \ |
0 | 2933 develop(bool, DebugDeoptimization, false, \ |
2934 "Tracing various information while debugging deoptimization") \ | |
2935 \ | |
2936 product(intx, SelfDestructTimer, 0, \ | |
2937 "Will cause VM to terminate after a given time (in minutes) " \ | |
2938 "(0 means off)") \ | |
2939 \ | |
2940 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
12836
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|
2941 "The maximum number of lines in the stack trace for Java " \ |
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diff
changeset
|
2942 "exceptions (0 means all)") \ |
0 | 2943 \ |
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
2944 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
0 | 2945 "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
|
2946 "(0 means none)")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2947 \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2948 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2949 "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
|
2950 "(0 means none)")) \ |
0 | 2951 \ |
2952 product(intx, SafepointTimeoutDelay, 10000, \ | |
2953 "Delay in milliseconds for option SafepointTimeout") \ | |
2954 \ | |
6818 | 2955 product(intx, NmethodSweepFraction, 16, \ |
0 | 2956 "Number of invocations of sweeper to cover all nmethods") \ |
2957 \ | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2958 product(intx, NmethodSweepCheckInterval, 5, \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2959 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2960 \ |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2961 product(intx, NmethodSweepActivity, 10, \ |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2962 "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
|
2963 "result in more aggressive sweeping") \ |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2964 \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2965 notproduct(bool, LogSweeper, false, \ |
12836
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|
2966 "Keep a ring buffer of sweeper activity") \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2967 \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2968 notproduct(intx, SweeperLogEntries, 1024, \ |
12836
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changeset
|
2969 "Number of records in the ring buffer of sweeper activity") \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2970 \ |
0 | 2971 notproduct(intx, MemProfilingInterval, 500, \ |
2972 "Time between each invocation of the MemProfiler") \ | |
2973 \ | |
2974 develop(intx, MallocCatchPtr, -1, \ | |
2975 "Hit breakpoint when mallocing/freeing this pointer") \ | |
2976 \ | |
2977 notproduct(intx, AssertRepeat, 1, \ | |
2978 "number of times to evaluate expression in assert " \ | |
2979 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
2980 \ | |
2981 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
2982 "List of assertions (file:line) to muzzle") \ | |
2983 \ | |
2984 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
2985 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
2986 "is used") \ | |
2987 \ | |
2988 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
2989 "Threshold for total handle allocation when " \ | |
2990 "+TraceHandleAllocation is used") \ | |
2991 \ | |
2992 develop(intx, StackPrintLimit, 100, \ | |
2993 "number of stack frames to print in VM-level stack dump") \ | |
2994 \ | |
2995 notproduct(intx, MaxElementPrintSize, 256, \ | |
2996 "maximum number of elements to print") \ | |
2997 \ | |
2998 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
2999 "maximum number of subklasses to print when printing klass") \ | |
3000 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3001 product(intx, MaxInlineLevel, 9, \ |
0 | 3002 "maximum number of nested calls that are inlined") \ |
3003 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3004 product(intx, MaxRecursiveInlineLevel, 1, \ |
0 | 3005 "maximum number of nested recursive calls that are inlined") \ |
3006 \ | |
13081
e74074c34312
8028159: C2: compiler stack overflow during inlining of @ForceInline methods
vlivanov
parents:
13074
diff
changeset
|
3007 develop(intx, MaxForceInlineLevel, 100, \ |
14726
92aa6797d639
Backed out merge changeset: b51e29501f30
Doug Simon <doug.simon@oracle.com>
parents:
14704
diff
changeset
|
3008 "maximum number of nested @ForceInline calls that are inlined") \ |
13081
e74074c34312
8028159: C2: compiler stack overflow during inlining of @ForceInline methods
vlivanov
parents:
13074
diff
changeset
|
3009 \ |
675 | 3010 product_pd(intx, InlineSmallCode, \ |
0 | 3011 "Only inline already compiled methods if their code size is " \ |
3012 "less than this") \ | |
3013 \ | |
3014 product(intx, MaxInlineSize, 35, \ | |
12836
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changeset
|
3015 "The maximum bytecode size of a method to be inlined") \ |
0 | 3016 \ |
3017 product_pd(intx, FreqInlineSize, \ | |
12836
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tamao
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changeset
|
3018 "The maximum bytecode size of a frequent method to be inlined") \ |
0 | 3019 \ |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3020 product(intx, MaxTrivialSize, 6, \ |
12836
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|
3021 "The maximum bytecode size of a trivial method to be inlined") \ |
0 | 3022 \ |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
3023 product(intx, MinInliningThreshold, 250, \ |
12836
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12287
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changeset
|
3024 "The minimum invocation count a method needs to have to be " \ |
b4d8a3d4db73
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tamao
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12287
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changeset
|
3025 "inlined") \ |
0 | 3026 \ |
3027 develop(intx, MethodHistogramCutoff, 100, \ | |
12836
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tamao
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12287
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changeset
|
3028 "The cutoff value for method invocation histogram (+CountCalls)") \ |
0 | 3029 \ |
3030 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
12836
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tamao
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12287
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changeset
|
3031 "Number of interpreted methods to show in profile") \ |
0 | 3032 \ |
3033 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
12836
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tamao
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12287
diff
changeset
|
3034 "Number of compiled methods to show in profile") \ |
0 | 3035 \ |
3036 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
12836
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tamao
parents:
12287
diff
changeset
|
3037 "Number of stub methods to show in profile") \ |
0 | 3038 \ |
3039 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
12836
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tamao
parents:
12287
diff
changeset
|
3040 "Number of runtime stub nodes to show in profile") \ |
0 | 3041 \ |
3042 product(intx, ProfileIntervalsTicks, 100, \ | |
12836
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tamao
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12287
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changeset
|
3043 "Number of ticks between printing of interval profile " \ |
0 | 3044 "(+ProfileIntervals)") \ |
3045 \ | |
3046 notproduct(intx, ScavengeALotInterval, 1, \ | |
3047 "Interval between which scavenge will occur with +ScavengeALot") \ | |
3048 \ | |
3049 notproduct(intx, FullGCALotInterval, 1, \ | |
3050 "Interval between which full gc will occur with +FullGCALot") \ | |
3051 \ | |
3052 notproduct(intx, FullGCALotStart, 0, \ | |
3053 "For which invocation to start FullGCAlot") \ | |
3054 \ | |
3055 notproduct(intx, FullGCALotDummies, 32*K, \ | |
3056 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
3057 "to move") \ | |
3058 \ | |
3059 develop(intx, DontYieldALotInterval, 10, \ | |
3060 "Interval between which yields will be dropped (milliseconds)") \ | |
3061 \ | |
3062 develop(intx, MinSleepInterval, 1, \ | |
3063 "Minimum sleep() interval (milliseconds) when " \ | |
12836
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12287
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changeset
|
3064 "ConvertSleepToYield is off (used for Solaris)") \ |
0 | 3065 \ |
3066 develop(intx, ProfilerPCTickThreshold, 15, \ | |
3067 "Number of ticks in a PC buckets to be a hotspot") \ | |
3068 \ | |
3069 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
3070 "Number of exits until DeoptimizeALot kicks in") \ | |
3071 \ | |
3072 notproduct(intx, ZombieALotInterval, 5, \ | |
3073 "Number of exits until ZombieALot kicks in") \ | |
3074 \ | |
3075 diagnostic(intx, MallocVerifyInterval, 0, \ | |
12836
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12287
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changeset
|
3076 "If non-zero, verify C heap after every N calls to " \ |
0 | 3077 "malloc/realloc/free") \ |
3078 \ | |
3079 diagnostic(intx, MallocVerifyStart, 0, \ | |
12836
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12287
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changeset
|
3080 "If non-zero, start verifying C heap after Nth call to " \ |
0 | 3081 "malloc/realloc/free") \ |
3082 \ | |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
3083 diagnostic(uintx, MallocMaxTestWords, 0, \ |
12836
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12287
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changeset
|
3084 "If non-zero, maximum number of words that malloc/realloc can " \ |
b4d8a3d4db73
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tamao
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12287
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changeset
|
3085 "allocate (for testing only)") \ |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
3086 \ |
6818 | 3087 product(intx, TypeProfileWidth, 2, \ |
12836
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|
3088 "Number of receiver types to record in call/cast profile") \ |
0 | 3089 \ |
9760
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
9627
diff
changeset
|
3090 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
|
3091 "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
|
3092 \ |
0 | 3093 develop(intx, BciProfileWidth, 2, \ |
12836
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changeset
|
3094 "Number of return bci's to record in ret profile") \ |
0 | 3095 \ |
3096 product(intx, PerMethodRecompilationCutoff, 400, \ | |
3097 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
3098 \ | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
3099 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
0 | 3100 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
3101 \ | |
3102 product(intx, PerMethodTrapLimit, 100, \ | |
3103 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
3104 \ | |
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3105 experimental(intx, PerMethodSpecTrapLimit, 5000, \ |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3106 "Limit on speculative traps (of one kind) in a method (includes inlines)") \ |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3107 \ |
0 | 3108 product(intx, PerBytecodeTrapLimit, 4, \ |
3109 "Limit on traps (of one kind) at a particular BCI") \ | |
3110 \ | |
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3111 experimental(intx, SpecTrapLimitExtraEntries, 3, \ |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3112 "Extra method data trap entries for speculation") \ |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3113 \ |
0 | 3114 develop(intx, InlineFrequencyRatio, 20, \ |
3115 "Ratio of call site execution to caller method invocation") \ | |
3116 \ | |
3117 develop_pd(intx, InlineFrequencyCount, \ | |
3118 "Count of call site execution necessary to trigger frequent " \ | |
3119 "inlining") \ | |
3120 \ | |
3121 develop(intx, InlineThrowCount, 50, \ | |
3122 "Force inlining of interpreted methods that throw this often") \ | |
3123 \ | |
3124 develop(intx, InlineThrowMaxSize, 200, \ | |
3125 "Force inlining of throwing methods smaller than this") \ | |
3126 \ | |
3127 develop(intx, ProfilerNodeSize, 1024, \ | |
3128 "Size in K to allocate for the Profile Nodes of each thread") \ | |
3129 \ | |
3130 product_pd(intx, PreInflateSpin, \ | |
3131 "Number of times to spin wait before inflation") \ | |
3132 \ | |
3133 /* gc parameters */ \ | |
1064 | 3134 product(uintx, InitialHeapSize, 0, \ |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10208
diff
changeset
|
3135 "Initial heap size (in bytes); zero means use ergonomics") \ |
1064 | 3136 \ |
3137 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
3138 "Maximum heap size (in bytes)") \ | |
3139 \ | |
3140 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
3141 "Initial tenured generation size (in bytes)") \ | |
3142 \ | |
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
3143 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
1064 | 3144 "Initial new generation size (in bytes)") \ |
0 | 3145 \ |
3146 product(uintx, MaxNewSize, max_uintx, \ | |
1064 | 3147 "Maximum new generation size (in bytes), max_uintx means set " \ |
3148 "ergonomically") \ | |
0 | 3149 \ |
3150 product(uintx, PretenureSizeThreshold, 0, \ | |
1064 | 3151 "Maximum size in bytes of objects allocated in DefNew " \ |
3152 "generation; zero means no maximum") \ | |
3153 \ | |
3154 product(uintx, TLABSize, 0, \ | |
3155 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
0 | 3156 \ |
3157 product(uintx, MinTLABSize, 2*K, \ | |
3158 "Minimum allowed TLAB size (in bytes)") \ | |
3159 \ | |
3160 product(uintx, TLABAllocationWeight, 35, \ | |
3161 "Allocation averaging weight") \ | |
3162 \ | |
3163 product(uintx, TLABWasteTargetPercent, 1, \ | |
3164 "Percentage of Eden that can be wasted") \ | |
3165 \ | |
3166 product(uintx, TLABRefillWasteFraction, 64, \ | |
12836
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|
3167 "Maximum TLAB waste at a refill (internal fragmentation)") \ |
0 | 3168 \ |
3169 product(uintx, TLABWasteIncrement, 4, \ | |
3170 "Increment allowed waste at slow allocation") \ | |
3171 \ | |
8035 | 3172 product(uintx, SurvivorRatio, 8, \ |
0 | 3173 "Ratio of eden/survivor space size") \ |
3174 \ | |
8035 | 3175 product(uintx, NewRatio, 2, \ |
12836
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|
3176 "Ratio of old/new generation sizes") \ |
0 | 3177 \ |
3178 product_pd(uintx, NewSizeThreadIncrease, \ | |
3179 "Additional size added to desired new generation size per " \ | |
3180 "non-daemon thread (in bytes)") \ | |
3181 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3182 product_pd(uintx, MetaspaceSize, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3183 "Initial size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3184 \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3185 product(uintx, MaxMetaspaceSize, max_uintx, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3186 "Maximum size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3187 \ |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3188 product(uintx, CompressedClassSpaceSize, 1*G, \ |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3189 "Maximum size of class area in Metaspace when compressed " \ |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3190 "class pointers are used") \ |
0 | 3191 \ |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3192 manageable(uintx, MinHeapFreeRatio, 40, \ |
12892
9c8289162268
8024776: Max/MinHeapFreeRatio descriptions should be more precise
jwilhelm
parents:
12838
diff
changeset
|
3193 "The minimum percentage of heap free after GC to avoid expansion."\ |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3194 " For most GCs this applies to the old generation. In G1 and" \ |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3195 " ParallelGC it applies to the whole heap.") \ |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3196 \ |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3197 manageable(uintx, MaxHeapFreeRatio, 70, \ |
12892
9c8289162268
8024776: Max/MinHeapFreeRatio descriptions should be more precise
jwilhelm
parents:
12838
diff
changeset
|
3198 "The maximum percentage of heap free after GC to avoid shrinking."\ |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3199 " For most GCs this applies to the old generation. In G1 and" \ |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3200 " ParallelGC it applies to the whole heap.") \ |
0 | 3201 \ |
3202 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
3203 "Number of milliseconds per MB of free space in the heap") \ | |
3204 \ | |
3205 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
12836
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changeset
|
3206 "The minimum change in heap space due to GC (in bytes)") \ |
0 | 3207 \ |
6818 | 3208 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ |
12836
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12287
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changeset
|
3209 "The minimum expansion of Metaspace (in bytes)") \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3210 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3211 product(uintx, MinMetaspaceFreeRatio, 40, \ |
12836
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changeset
|
3212 "The minimum percentage of Metaspace free after GC to avoid " \ |
b4d8a3d4db73
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12287
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changeset
|
3213 "expansion") \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3214 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3215 product(uintx, MaxMetaspaceFreeRatio, 70, \ |
12836
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12287
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changeset
|
3216 "The maximum percentage of Metaspace free after GC to avoid " \ |
b4d8a3d4db73
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12287
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changeset
|
3217 "shrinking") \ |
0 | 3218 \ |
6818 | 3219 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ |
12836
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changeset
|
3220 "The maximum expansion of Metaspace without full GC (in bytes)") \ |
0 | 3221 \ |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3222 product(uintx, QueuedAllocationWarningCount, 0, \ |
0 | 3223 "Number of times an allocation that queues behind a GC " \ |
3224 "will retry before printing a warning") \ | |
3225 \ | |
3226 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
3227 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
3228 \ | |
3229 diagnostic(intx, VerifyGCLevel, 0, \ | |
3230 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
3231 \ | |
6818 | 3232 product(uintx, MaxTenuringThreshold, 15, \ |
0 | 3233 "Maximum value for tenuring threshold") \ |
3234 \ | |
6818 | 3235 product(uintx, InitialTenuringThreshold, 7, \ |
0 | 3236 "Initial value for tenuring threshold") \ |
3237 \ | |
8035 | 3238 product(uintx, TargetSurvivorRatio, 50, \ |
0 | 3239 "Desired percentage of survivor space used after scavenge") \ |
3240 \ | |
438 | 3241 product(uintx, MarkSweepDeadRatio, 5, \ |
12836
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|
3242 "Percentage (0-100) of the old gen allowed as dead wood. " \ |
b4d8a3d4db73
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changeset
|
3243 "Serial mark sweep treats this as both the minimum and maximum " \ |
b4d8a3d4db73
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changeset
|
3244 "value. " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
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changeset
|
3245 "CMS uses this value only if it falls back to mark sweep. " \ |
b4d8a3d4db73
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parents:
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changeset
|
3246 "Par compact uses a variable scale based on the density of the " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
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changeset
|
3247 "generation and treats this as the maximum value when the heap " \ |
b4d8a3d4db73
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12287
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changeset
|
3248 "is either completely full or completely empty. Par compact " \ |
b4d8a3d4db73
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tamao
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changeset
|
3249 "also has a smaller default value; see arguments.cpp.") \ |
0 | 3250 \ |
10287
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tschatzl
parents:
10241
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changeset
|
3251 product(uintx, MarkSweepAlwaysCompactCount, 4, \ |
0 | 3252 "How often should we fully compact the heap (ignoring the dead " \ |
3253 "space parameters)") \ | |
3254 \ | |
3255 product(intx, PrintCMSStatistics, 0, \ | |
3256 "Statistics for CMS") \ | |
3257 \ | |
3258 product(bool, PrintCMSInitiationStatistics, false, \ | |
3259 "Statistics for initiating a CMS collection") \ | |
3260 \ | |
3261 product(intx, PrintFLSStatistics, 0, \ | |
3262 "Statistics for CMS' FreeListSpace") \ | |
3263 \ | |
3264 product(intx, PrintFLSCensus, 0, \ | |
3265 "Census for CMS' FreeListSpace") \ | |
3266 \ | |
3267 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
12836
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changeset
|
3268 "Delay between expansion and allocation (in milliseconds)") \ |
0 | 3269 \ |
6817 | 3270 develop(uintx, GCWorkerDelayMillis, 0, \ |
12836
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tamao
parents:
12287
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changeset
|
3271 "Delay in scheduling GC workers (in milliseconds)") \ |
6817 | 3272 \ |
0 | 3273 product(intx, DeferThrSuspendLoopCount, 4000, \ |
3274 "(Unstable) Number of times to iterate in safepoint loop " \ | |
12836
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|
3275 "before blocking VM threads ") \ |
0 | 3276 \ |
3277 product(intx, DeferPollingPageLoopCount, -1, \ | |
3278 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
3279 "before changing safepoint polling page to RO ") \ | |
3280 \ | |
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3281 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ |
0 | 3282 \ |
3283 product(bool, PSChunkLargeArrays, true, \ | |
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|
3284 "Process large arrays in chunks") \ |
0 | 3285 \ |
3286 product(uintx, GCDrainStackTargetSize, 64, \ | |
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3287 "Number of entries we will try to leave on the stack " \ |
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|
3288 "during parallel gc") \ |
0 | 3289 \ |
3290 /* stack parameters */ \ | |
3291 product_pd(intx, StackYellowPages, \ | |
3292 "Number of yellow zone (recoverable overflows) pages") \ | |
3293 \ | |
3294 product_pd(intx, StackRedPages, \ | |
3295 "Number of red zone (unrecoverable overflows) pages") \ | |
3296 \ | |
3297 product_pd(intx, StackShadowPages, \ | |
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|
3298 "Number of shadow zone (for overflow checking) pages " \ |
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3299 "this should exceed the depth of the VM and native call stack") \ |
0 | 3300 \ |
3301 product_pd(intx, ThreadStackSize, \ | |
3302 "Thread Stack Size (in Kbytes)") \ | |
3303 \ | |
3304 product_pd(intx, VMThreadStackSize, \ | |
3305 "Non-Java Thread Stack Size (in Kbytes)") \ | |
3306 \ | |
3307 product_pd(intx, CompilerThreadStackSize, \ | |
3308 "Compiler Thread Stack Size (in Kbytes)") \ | |
3309 \ | |
3310 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
3311 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
3312 \ | |
3313 product(uintx, ThreadSafetyMargin, 50*M, \ | |
3314 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
3315 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
3316 "disable this feature") \ | |
3317 \ | |
3318 /* code cache parameters */ \ | |
14726
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|
3319 /* ppc64 has large code-entry alignment. */ \ |
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|
3320 develop(uintx, CodeCacheSegmentSize, 64 PPC64_ONLY(+64), \ |
0 | 3321 "Code cache segment size (in bytes) - smallest unit of " \ |
3322 "allocation") \ | |
3323 \ | |
3324 develop_pd(intx, CodeEntryAlignment, \ | |
3325 "Code entry alignment for generated code (in bytes)") \ | |
3326 \ | |
1365 | 3327 product_pd(intx, OptoLoopAlignment, \ |
3328 "Align inner loops to zero relative to this modulus") \ | |
3329 \ | |
0 | 3330 product_pd(uintx, InitialCodeCacheSize, \ |
3331 "Initial code cache size (in bytes)") \ | |
3332 \ | |
11079
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|
3333 develop_pd(uintx, CodeCacheMinimumUseSpace, \ |
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3334 "Minimum code cache size (in bytes) required to start VM.") \ |
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3335 \ |
0 | 3336 product_pd(uintx, ReservedCodeCacheSize, \ |
3337 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
3338 \ | |
3339 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
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3340 "When less than X space left, we stop compiling") \ |
0 | 3341 \ |
3342 product_pd(uintx, CodeCacheExpansionSize, \ | |
3343 "Code cache expansion size (in bytes)") \ | |
3344 \ | |
3345 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
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3346 "Minimum number of segments in a code cache block") \ |
0 | 3347 \ |
3348 notproduct(bool, ExitOnFullCodeCache, false, \ | |
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3349 "Exit the VM if we fill the code cache") \ |
0 | 3350 \ |
4039 | 3351 product(bool, UseCodeCacheFlushing, true, \ |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
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13071
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|
3352 "Remove cold/old nmethods from the code cache") \ |
1202 | 3353 \ |
0 | 3354 /* interpreter debugging */ \ |
3355 develop(intx, BinarySwitchThreshold, 5, \ | |
3356 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
3357 "switch") \ | |
3358 \ | |
3359 develop(intx, StopInterpreterAt, 0, \ | |
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|
3360 "Stop interpreter execution at specified bytecode number") \ |
0 | 3361 \ |
3362 develop(intx, TraceBytecodesAt, 0, \ | |
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|
3363 "Trace bytecodes starting with specified bytecode number") \ |
0 | 3364 \ |
3365 /* compiler interface */ \ | |
3366 develop(intx, CIStart, 0, \ | |
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|
3367 "The id of the first compilation to permit") \ |
0 | 3368 \ |
14236 | 3369 develop(intx, CIStop, max_jint, \ |
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|
3370 "The id of the last compilation to permit") \ |
0 | 3371 \ |
14236 | 3372 develop(intx, CIStartOSR, 0, \ |
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|
3373 "The id of the first osr compilation to permit " \ |
0 | 3374 "(CICountOSR must be on)") \ |
3375 \ | |
14236 | 3376 develop(intx, CIStopOSR, max_jint, \ |
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|
3377 "The id of the last osr compilation to permit " \ |
0 | 3378 "(CICountOSR must be on)") \ |
3379 \ | |
14236 | 3380 develop(intx, CIBreakAtOSR, -1, \ |
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3381 "The id of osr compilation to break at") \ |
0 | 3382 \ |
14236 | 3383 develop(intx, CIBreakAt, -1, \ |
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|
3384 "The id of compilation to break at") \ |
0 | 3385 \ |
3386 product(ccstrlist, CompileOnly, "", \ | |
3387 "List of methods (pkg/class.name) to restrict compilation to") \ | |
3388 \ | |
3389 product(ccstr, CompileCommandFile, NULL, \ | |
3390 "Read compiler commands from this file [.hotspot_compiler]") \ | |
3391 \ | |
3392 product(ccstrlist, CompileCommand, "", \ | |
3393 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
3394 \ | |
6972
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|
3395 develop(bool, ReplayCompiles, false, \ |
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|
3396 "Enable replay of compilations from ReplayDataFile") \ |
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|
3397 \ |
10195
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|
3398 product(ccstr, ReplayDataFile, NULL, \ |
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|
3399 "File containing compilation replay information" \ |
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|
3400 "[default: ./replay_pid%p.log] (%p replaced with pid)") \ |
6972
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|
3401 \ |
14232 | 3402 product(ccstr, InlineDataFile, NULL, \ |
3403 "File containing inlining replay information" \ | |
3404 "[default: ./inline_pid%p.log] (%p replaced with pid)") \ | |
3405 \ | |
6972
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|
3406 develop(intx, ReplaySuppressInitializers, 2, \ |
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3407 "Control handling of class initialization during replay: " \ |
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3408 "0 - don't do anything special; " \ |
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3409 "1 - treat all class initializers as empty; " \ |
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3410 "2 - treat class initializers for application classes as empty; " \ |
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3411 "3 - allow all class initializers to run during bootstrap but " \ |
6972
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|
3412 " pretend they are empty after starting replay") \ |
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|
3413 \ |
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|
3414 develop(bool, ReplayIgnoreInitErrors, false, \ |
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|
3415 "Ignore exceptions thrown during initialization for replay") \ |
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|
3416 \ |
10195
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|
3417 product(bool, DumpReplayDataOnError, true, \ |
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|
3418 "Record replay data for crashing compiler threads") \ |
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|
3419 \ |
0 | 3420 product(bool, CICompilerCountPerCPU, false, \ |
3421 "1 compiler thread for log(N CPUs)") \ | |
3422 \ | |
3423 develop(intx, CIFireOOMAt, -1, \ | |
3424 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
3425 "(non-negative value throws OOM after this many CI accesses " \ | |
3426 "in each compile)") \ | |
10197
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
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10195
diff
changeset
|
3427 notproduct(intx, CICrashAt, -1, \ |
7b23cb975cf2
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diff
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|
3428 "id of compilation to trigger assert in compiler thread for " \ |
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|
3429 "the purpose of testing, e.g. generation of replay data") \ |
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
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905
diff
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|
3430 notproduct(bool, CIObjectFactoryVerify, false, \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
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905
diff
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|
3431 "enable potentially expensive verification in ciObjectFactory") \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
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|
3432 \ |
0 | 3433 /* Priorities */ \ |
3434 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
3435 \ | |
3436 product(intx, ThreadPriorityPolicy, 0, \ | |
3437 "0 : Normal. "\ | |
3438 " VM chooses priorities that are appropriate for normal "\ | |
3439 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
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3440 " to normal native priority. Java priorities below " \ |
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|
3441 " NORM_PRIORITY map to lower native priority values. On "\ |
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3442 " Windows applications are allowed to use higher native "\ |
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|
3443 " priorities. However, with ThreadPriorityPolicy=0, VM will "\ |
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3444 " not use the highest possible native priority, "\ |
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|
3445 " THREAD_PRIORITY_TIME_CRITICAL, as it may interfere with "\ |
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3446 " system threads. On Linux thread priorities are ignored "\ |
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3447 " because the OS does not support static priority in "\ |
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|
3448 " SCHED_OTHER scheduling class which is the only choice for "\ |
0 | 3449 " non-root, non-realtime applications. "\ |
3450 "1 : Aggressive. "\ | |
3451 " Java thread priorities map over to the entire range of "\ | |
3452 " native thread priorities. Higher Java thread priorities map "\ | |
3453 " to higher native thread priorities. This policy should be "\ | |
3454 " used with care, as sometimes it can cause performance "\ | |
3455 " degradation in the application and/or the entire system. On "\ | |
3456 " Linux this policy requires root privilege.") \ | |
3457 \ | |
3458 product(bool, ThreadPriorityVerbose, false, \ | |
4854
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|
3459 "Print priority changes") \ |
0 | 3460 \ |
3461 product(intx, DefaultThreadPriority, -1, \ | |
4854
de268c8a8075
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|
3462 "The native priority at which threads run if not elsewhere " \ |
de268c8a8075
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|
3463 "specified (-1 means no change)") \ |
0 | 3464 \ |
3465 product(intx, CompilerThreadPriority, -1, \ | |
4854
de268c8a8075
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|
3466 "The native priority at which compiler threads should run " \ |
de268c8a8075
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|
3467 "(-1 means no change)") \ |
0 | 3468 \ |
3469 product(intx, VMThreadPriority, -1, \ | |
4854
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|
3470 "The native priority at which the VM thread should run " \ |
de268c8a8075
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|
3471 "(-1 means no change)") \ |
0 | 3472 \ |
3473 product(bool, CompilerThreadHintNoPreempt, true, \ | |
3474 "(Solaris only) Give compiler threads an extra quanta") \ | |
3475 \ | |
3476 product(bool, VMThreadHintNoPreempt, false, \ | |
3477 "(Solaris only) Give VM thread an extra quanta") \ | |
3478 \ | |
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|
3479 product(intx, JavaPriority1_To_OSPriority, -1, \ |
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|
3480 "Map Java priorities to OS priorities") \ |
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|
3481 \ |
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|
3482 product(intx, JavaPriority2_To_OSPriority, -1, \ |
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|
3483 "Map Java priorities to OS priorities") \ |
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|
3484 \ |
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|
3485 product(intx, JavaPriority3_To_OSPriority, -1, \ |
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|
3486 "Map Java priorities to OS priorities") \ |
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|
3487 \ |
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|
3488 product(intx, JavaPriority4_To_OSPriority, -1, \ |
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|
3489 "Map Java priorities to OS priorities") \ |
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|
3490 \ |
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|
3491 product(intx, JavaPriority5_To_OSPriority, -1, \ |
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|
3492 "Map Java priorities to OS priorities") \ |
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|
3493 \ |
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|
3494 product(intx, JavaPriority6_To_OSPriority, -1, \ |
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|
3495 "Map Java priorities to OS priorities") \ |
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|
3496 \ |
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3497 product(intx, JavaPriority7_To_OSPriority, -1, \ |
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3498 "Map Java priorities to OS priorities") \ |
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3499 \ |
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3500 product(intx, JavaPriority8_To_OSPriority, -1, \ |
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3501 "Map Java priorities to OS priorities") \ |
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3502 \ |
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3503 product(intx, JavaPriority9_To_OSPriority, -1, \ |
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3504 "Map Java priorities to OS priorities") \ |
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3505 \ |
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3506 product(intx, JavaPriority10_To_OSPriority,-1, \ |
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3507 "Map Java priorities to OS priorities") \ |
0 | 3508 \ |
4854
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|
3509 experimental(bool, UseCriticalJavaThreadPriority, false, \ |
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|
3510 "Java thread priority 10 maps to critical scheduling priority") \ |
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|
3511 \ |
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|
3512 experimental(bool, UseCriticalCompilerThreadPriority, false, \ |
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|
3513 "Compiler thread(s) run at critical scheduling priority") \ |
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|
3514 \ |
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|
3515 experimental(bool, UseCriticalCMSThreadPriority, false, \ |
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|
3516 "ConcurrentMarkSweep thread runs at critical scheduling priority")\ |
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|
3517 \ |
0 | 3518 /* compiler debugging */ \ |
3519 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
3520 "First class to consider when using +CompileTheWorld") \ | |
3521 \ | |
3522 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
3523 "Last class to consider when using +CompileTheWorld") \ | |
3524 \ | |
3525 develop(intx, NewCodeParameter, 0, \ | |
3526 "Testing Only: Create a dedicated integer parameter before " \ | |
3527 "putback") \ | |
3528 \ | |
3529 /* new oopmap storage allocation */ \ | |
3530 develop(intx, MinOopMapAllocation, 8, \ | |
3531 "Minimum number of OopMap entries in an OopMapSet") \ | |
3532 \ | |
3533 /* Background Compilation */ \ | |
3534 develop(intx, LongCompileThreshold, 50, \ | |
3535 "Used with +TraceLongCompiles") \ | |
3536 \ | |
3537 product(intx, StarvationMonitorInterval, 200, \ | |
12836
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3538 "Pause between each check (in milliseconds)") \ |
0 | 3539 \ |
3540 /* recompilation */ \ | |
3541 product_pd(intx, CompileThreshold, \ | |
3542 "number of interpreted method invocations before (re-)compiling") \ | |
3543 \ | |
3544 product_pd(intx, BackEdgeThreshold, \ | |
12836
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3545 "Interpreter Back edge threshold at which an OSR compilation is " \ |
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3546 "invoked") \ |
0 | 3547 \ |
1783 | 3548 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
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3549 "Interpreter (tier 0) invocation notification frequency") \ |
1783 | 3550 \ |
3551 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
12836
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3552 "C1 without MDO (tier 2) invocation notification frequency") \ |
1783 | 3553 \ |
3554 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
3555 "C1 with MDO profiling (tier 3) invocation notification " \ | |
12836
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3556 "frequency") \ |
1783 | 3557 \ |
3964
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|
3558 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
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|
3559 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
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|
3560 \ |
1783 | 3561 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
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|
3562 "Interpreter (tier 0) invocation notification frequency") \ |
1783 | 3563 \ |
3564 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
12836
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3565 "C1 without MDO (tier 2) invocation notification frequency") \ |
1783 | 3566 \ |
3567 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
3568 "C1 with MDO profiling (tier 3) invocation notification " \ | |
12836
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3569 "frequency") \ |
1783 | 3570 \ |
3571 product(intx, Tier2CompileThreshold, 0, \ | |
3572 "threshold at which tier 2 compilation is invoked") \ | |
3573 \ | |
3574 product(intx, Tier2BackEdgeThreshold, 0, \ | |
3575 "Back edge threshold at which tier 2 compilation is invoked") \ | |
3576 \ | |
3577 product(intx, Tier3InvocationThreshold, 200, \ | |
3578 "Compile if number of method invocations crosses this " \ | |
3579 "threshold") \ | |
3580 \ | |
3581 product(intx, Tier3MinInvocationThreshold, 100, \ | |
3582 "Minimum invocation to compile at tier 3") \ | |
3583 \ | |
3584 product(intx, Tier3CompileThreshold, 2000, \ | |
3585 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
12836
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3586 "minimum must be satisfied") \ |
1783 | 3587 \ |
4819 | 3588 product(intx, Tier3BackEdgeThreshold, 60000, \ |
1783 | 3589 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
3590 \ | |
3591 product(intx, Tier4InvocationThreshold, 5000, \ | |
3592 "Compile if number of method invocations crosses this " \ | |
3593 "threshold") \ | |
3594 \ | |
3595 product(intx, Tier4MinInvocationThreshold, 600, \ | |
3596 "Minimum invocation to compile at tier 4") \ | |
3597 \ | |
3598 product(intx, Tier4CompileThreshold, 15000, \ | |
3599 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
12836
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3600 "minimum must be satisfied") \ |
1783 | 3601 \ |
3602 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
3603 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
3604 \ | |
3605 product(intx, Tier3DelayOn, 5, \ | |
3606 "If C2 queue size grows over this amount per compiler thread " \ | |
3607 "stop compiling at tier 3 and start compiling at tier 2") \ | |
3608 \ | |
3609 product(intx, Tier3DelayOff, 2, \ | |
3610 "If C2 queue size is less than this amount per compiler thread " \ | |
3611 "allow methods compiled at tier 2 transition to tier 3") \ | |
3612 \ | |
3613 product(intx, Tier3LoadFeedback, 5, \ | |
3614 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
3615 "reaches this amount per compiler thread") \ | |
3616 \ | |
3617 product(intx, Tier4LoadFeedback, 3, \ | |
3618 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
3619 "reaches this amount per compiler thread") \ | |
3620 \ | |
3621 product(intx, TieredCompileTaskTimeout, 50, \ | |
3622 "Kill compile task if method was not used within " \ | |
3623 "given timeout in milliseconds") \ | |
3624 \ | |
3625 product(intx, TieredStopAtLevel, 4, \ | |
3626 "Stop at given compilation level") \ | |
3627 \ | |
3628 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
12836
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3629 "Start profiling in interpreter if the counters exceed tier 3 " \ |
1783 | 3630 "thresholds by the specified percentage") \ |
3631 \ | |
10319
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|
3632 product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \ |
12836
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3633 "Increase the compile threshold for C1 compilation if the code " \ |
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3634 "cache is filled by the specified percentage") \ |
10319
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|
3635 \ |
1783 | 3636 product(intx, TieredRateUpdateMinTime, 1, \ |
3637 "Minimum rate sampling interval (in milliseconds)") \ | |
3638 \ | |
3639 product(intx, TieredRateUpdateMaxTime, 25, \ | |
3640 "Maximum rate sampling interval (in milliseconds)") \ | |
0 | 3641 \ |
3642 product_pd(bool, TieredCompilation, \ | |
1783 | 3643 "Enable tiered compilation") \ |
3644 \ | |
3645 product(bool, PrintTieredEvents, false, \ | |
3646 "Print tiered events notifications") \ | |
0 | 3647 \ |
3648 product_pd(intx, OnStackReplacePercentage, \ | |
12836
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|
3649 "NON_TIERED number of method invocations/branches (expressed as " \ |
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|
3650 "% of CompileThreshold) before (re-)compiling OSR code") \ |
0 | 3651 \ |
3652 product(intx, InterpreterProfilePercentage, 33, \ | |
12836
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|
3653 "NON_TIERED number of method invocations/branches (expressed as " \ |
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|
3654 "% of CompileThreshold) before profiling in the interpreter") \ |
0 | 3655 \ |
3656 develop(intx, MaxRecompilationSearchLength, 10, \ | |
12836
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|
3657 "The maximum number of frames to inspect when searching for " \ |
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|
3658 "recompilee") \ |
0 | 3659 \ |
3660 develop(intx, MaxInterpretedSearchLength, 3, \ | |
12836
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|
3661 "The maximum number of interpreted frames to skip when searching "\ |
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|
3662 "for recompilee") \ |
0 | 3663 \ |
3664 develop(intx, DesiredMethodLimit, 8000, \ | |
12836
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|
3665 "The desired maximum method size (in bytecodes) after inlining") \ |
0 | 3666 \ |
3667 develop(intx, HugeMethodLimit, 8000, \ | |
12836
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|
3668 "Don't compile methods larger than this if " \ |
0 | 3669 "+DontCompileHugeMethods") \ |
3670 \ | |
3671 /* New JDK 1.4 reflection implementation */ \ | |
3672 \ | |
3673 develop(bool, UseNewReflection, true, \ | |
3674 "Temporary flag for transition to reflection based on dynamic " \ | |
3675 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
3676 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
3677 "changes were needed") \ | |
3678 \ | |
3679 develop(bool, VerifyReflectionBytecodes, false, \ | |
3680 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
3681 "in situations like that described in 4486457 or for " \ | |
3682 "constructors generated for serialization, so can not be enabled "\ | |
3683 "in product.") \ | |
3684 \ | |
3685 product(bool, ReflectionWrapResolutionErrors, true, \ | |
3686 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
3687 "in InvocationTargetException. See 6531596") \ | |
3688 \ | |
3689 develop(intx, FastSuperclassLimit, 8, \ | |
3690 "Depth of hardwired instanceof accelerator array") \ | |
3691 \ | |
3692 /* Properties for Java libraries */ \ | |
3693 \ | |
6199
3f1ab0c19c30
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dholmes
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6197
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|
3694 product(uintx, MaxDirectMemorySize, 0, \ |
0 | 3695 "Maximum total size of NIO direct-buffer allocations") \ |
3696 \ | |
14309 | 3697 /* Flags used for temporary code during development */ \ |
0 | 3698 \ |
3699 diagnostic(bool, UseNewCode, false, \ | |
3700 "Testing Only: Use the new version while testing") \ | |
3701 \ | |
3702 diagnostic(bool, UseNewCode2, false, \ | |
3703 "Testing Only: Use the new version while testing") \ | |
3704 \ | |
3705 diagnostic(bool, UseNewCode3, false, \ | |
3706 "Testing Only: Use the new version while testing") \ | |
3707 \ | |
3708 /* flags for performance data collection */ \ | |
3709 \ | |
3797
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7061192: option handling adjustments for oracle and embedded builds
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3780
diff
changeset
|
3710 product(bool, UsePerfData, falseInEmbedded, \ |
12836
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|
3711 "Flag to disable jvmstat instrumentation for performance testing "\ |
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|
3712 "and problem isolation purposes") \ |
0 | 3713 \ |
3714 product(bool, PerfDataSaveToFile, false, \ | |
3715 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
3716 \ | |
3717 product(ccstr, PerfDataSaveFile, NULL, \ | |
12836
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|
3718 "Save PerfData memory to the specified absolute pathname. " \ |
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|
3719 "The string %p in the file name (if present) " \ |
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|
3720 "will be replaced by pid") \ |
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|
3721 \ |
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|
3722 product(intx, PerfDataSamplingInterval, 50, \ |
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|
3723 "Data sampling interval (in milliseconds)") \ |
0 | 3724 \ |
3725 develop(bool, PerfTraceDataCreation, false, \ | |
3726 "Trace creation of Performance Data Entries") \ | |
3727 \ | |
3728 develop(bool, PerfTraceMemOps, false, \ | |
3729 "Trace PerfMemory create/attach/detach calls") \ | |
3730 \ | |
3731 product(bool, PerfDisableSharedMem, false, \ | |
3732 "Store performance data in standard memory") \ | |
3733 \ | |
3734 product(intx, PerfDataMemorySize, 32*K, \ | |
3735 "Size of performance data memory region. Will be rounded " \ | |
3736 "up to a multiple of the native os page size.") \ | |
3737 \ | |
3738 product(intx, PerfMaxStringConstLength, 1024, \ | |
3739 "Maximum PerfStringConstant string length before truncation") \ | |
3740 \ | |
3741 product(bool, PerfAllowAtExitRegistration, false, \ | |
3742 "Allow registration of atexit() methods") \ | |
3743 \ | |
3744 product(bool, PerfBypassFileSystemCheck, false, \ | |
3745 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
3746 \ | |
3747 product(intx, UnguardOnExecutionViolation, 0, \ | |
12836
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|
3748 "Unguard page and retry on no-execute fault (Win32 only) " \ |
0 | 3749 "0=off, 1=conservative, 2=aggressive") \ |
3750 \ | |
3751 /* Serviceability Support */ \ | |
3752 \ | |
3753 product(bool, ManagementServer, false, \ | |
3754 "Create JMX Management Server") \ | |
3755 \ | |
3756 product(bool, DisableAttachMechanism, false, \ | |
12836
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|
3757 "Disable mechanism that allows tools to attach to this VM") \ |
0 | 3758 \ |
3759 product(bool, StartAttachListener, false, \ | |
3760 "Always start Attach Listener at VM startup") \ | |
3761 \ | |
3762 manageable(bool, PrintConcurrentLocks, false, \ | |
3763 "Print java.util.concurrent locks in thread dump") \ | |
3764 \ | |
2209
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2204
diff
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|
3765 product(bool, TransmitErrorReport, false, \ |
2199
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2192
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|
3766 "Enable error report transmission on erroneous termination") \ |
d8a72fbc4be7
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2192
diff
changeset
|
3767 \ |
2209
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2204
diff
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|
3768 product(ccstr, ErrorReportServer, NULL, \ |
2199
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2192
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|
3769 "Override built-in error report server address") \ |
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2192
diff
changeset
|
3770 \ |
0 | 3771 /* Shared spaces */ \ |
3772 \ | |
3773 product(bool, UseSharedSpaces, true, \ | |
7461
561148896559
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hseigel
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7428
diff
changeset
|
3774 "Use shared spaces for metadata") \ |
0 | 3775 \ |
3776 product(bool, RequireSharedSpaces, false, \ | |
7461
561148896559
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7428
diff
changeset
|
3777 "Require shared spaces for metadata") \ |
0 | 3778 \ |
3779 product(bool, DumpSharedSpaces, false, \ | |
12836
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3780 "Special mode: JVM reads a class list, loads classes, builds " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3781 "shared spaces, and dumps the shared spaces to a file to be " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3782 "used in future JVM runs") \ |
0 | 3783 \ |
3784 product(bool, PrintSharedSpaces, false, \ | |
3785 "Print usage of shared spaces") \ | |
3786 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3787 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
|
3788 "Size of read-write space for metadata (in bytes)") \ |
0 | 3789 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3790 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
|
3791 "Size of read-only space for metadata (in bytes)") \ |
0 | 3792 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3793 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
|
3794 "Size of the shared miscellaneous data area (in bytes)") \ |
0 | 3795 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3796 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
|
3797 "Size of the shared miscellaneous code area (in bytes)") \ |
0 | 3798 \ |
8804
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3799 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3800 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
|
3801 "Address to allocate shared memory region for class data") \ |
0 | 3802 \ |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3803 diagnostic(bool, EnableInvokeDynamic, true, \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3804 "support JSR 292 (method handles, invokedynamic, " \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3805 "anonymous classes") \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3806 \ |
3449
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3807 diagnostic(bool, PrintMethodHandleStubs, false, \ |
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3808 "Print generated stub code for method handles") \ |
a9b8b43b115f
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3418
diff
changeset
|
3809 \ |
710 | 3810 develop(bool, TraceMethodHandles, false, \ |
3811 "trace internal method handle operations") \ | |
3812 \ | |
3813 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
3814 "perform extra checks when constructing method handles") \ | |
3815 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3816 diagnostic(bool, ShowHiddenFrames, false, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3817 "show method handle implementation frames (usually hidden)") \ |
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3818 \ |
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3819 experimental(bool, TrustFinalNonStaticFields, false, \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3820 "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
|
3821 \ |
14726
92aa6797d639
Backed out merge changeset: b51e29501f30
Doug Simon <doug.simon@oracle.com>
parents:
14704
diff
changeset
|
3822 experimental(bool, FoldStableValues, false, \ |
92aa6797d639
Backed out merge changeset: b51e29501f30
Doug Simon <doug.simon@oracle.com>
parents:
14704
diff
changeset
|
3823 "Private flag to control optimizations for stable variables") \ |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3824 \ |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3825 develop(bool, TraceInvokeDynamic, false, \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3826 "trace internal invoke dynamic operations") \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3827 \ |
0 | 3828 diagnostic(bool, PauseAtStartup, false, \ |
3829 "Causes the VM to pause at startup time and wait for the pause " \ | |
3830 "file to be removed (default: ./vm.paused.<pid>)") \ | |
3831 \ | |
3832 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
3833 "The file to create and for whose removal to await when pausing " \ | |
3834 "at startup. (default: ./vm.paused.<pid>)") \ | |
3835 \ | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3836 diagnostic(bool, PauseAtExit, false, \ |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3837 "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
|
3838 \ |
0 | 3839 product(bool, ExtendedDTraceProbes, false, \ |
3840 "Enable performance-impacting dtrace probes") \ | |
3841 \ | |
3842 product(bool, DTraceMethodProbes, false, \ | |
3843 "Enable dtrace probes for method-entry and method-exit") \ | |
3844 \ | |
3845 product(bool, DTraceAllocProbes, false, \ | |
3846 "Enable dtrace probes for object allocation") \ | |
3847 \ | |
3848 product(bool, DTraceMonitorProbes, false, \ | |
3849 "Enable dtrace probes for monitor events") \ | |
3850 \ | |
3851 product(bool, RelaxAccessControlCheck, false, \ | |
3852 "Relax the access control checks in the verifier") \ | |
3853 \ | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3854 diagnostic(bool, PrintDTraceDOF, false, \ |
12836
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3855 "Print the DTrace DOF passed to the system for JSDT probes") \ |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3856 \ |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6935
diff
changeset
|
3857 product(uintx, StringTableSize, defaultStringTableSize, \ |
2378 | 3858 "Number of buckets in the interned String table") \ |
3859 \ | |
12825
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
3860 experimental(uintx, SymbolTableSize, defaultSymbolTableSize, \ |
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
3861 "Number of buckets in the JVM internal Symbol table") \ |
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
3862 \ |
6934 | 3863 develop(bool, TraceDefaultMethods, false, \ |
3864 "Trace the default method processing steps") \ | |
3865 \ | |
3866 develop(bool, VerifyGenericSignatures, false, \ | |
3867 "Abort VM on erroneous or inconsistent generic signatures") \ | |
3868 \ | |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3869 product(bool, UseVMInterruptibleIO, false, \ |
0 | 3870 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
12836
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3871 "EINTR for I/O operations results in OS_INTRPT. The default " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3872 "value of this flag is true for JDK 6 and earlier") \ |
5915 | 3873 \ |
3874 diagnostic(bool, WhiteBoxAPI, false, \ | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3875 "Enable internal testing APIs") \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3876 \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3877 product(bool, PrintGCCause, true, \ |
8702 | 3878 "Include GC cause in GC logging") \ |
3879 \ | |
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3880 product(bool , AllowNonVirtualCalls, false, \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3881 "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
|
3882 \ |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3883 diagnostic(ccstr, SharedArchiveFile, NULL, \ |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3884 "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
|
3885 \ |
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3886 experimental(uintx, ArrayAllocatorMallocLimit, \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3887 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
|
3888 "Allocation less than this value will be allocated " \ |
10405 | 3889 "using malloc. Larger allocations will use mmap.") \ |
3890 \ | |
3891 product(bool, EnableTracing, false, \ | |
3892 "Enable event-based tracing") \ | |
12836
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3893 \ |
10405 | 3894 product(bool, UseLockedTracing, false, \ |
3895 "Use locked-tracing when doing event-based tracing") | |
3896 | |
0 | 3897 /* |
3898 * Macros for factoring of globals | |
3899 */ | |
3900 | |
3901 // Interface macros | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3902 #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
|
3903 #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
|
3904 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3905 #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
|
3906 #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
|
3907 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3908 #ifdef PRODUCT |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3909 #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
|
3910 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type CONST_##name; const type name = pd_##name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3911 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type CONST_##name; |
0 | 3912 #else |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3913 #define DECLARE_DEVELOPER_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
|
3914 #define DECLARE_PD_DEVELOPER_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
|
3915 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3916 #endif |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3917 // Special LP64 flags, product only needed for now. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3918 #ifdef _LP64 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3919 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3920 #else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3921 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3922 #endif // _LP64 |
0 | 3923 |
3924 // Implementation macros | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3925 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3926 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3927 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3928 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3929 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3930 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; |
0 | 3931 #ifdef PRODUCT |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3932 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type CONST_##name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3933 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type CONST_##name = pd_##name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3934 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type CONST_##name = value; |
0 | 3935 #else |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3936 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3937 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3938 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; |
0 | 3939 #endif |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3940 #ifdef _LP64 |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3941 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3942 #else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3943 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3944 #endif // _LP64 |
0 | 3945 |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3946 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 | 3947 |
3948 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
1972 | 3949 |
6633
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3950 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) |
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6608
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changeset
|
3951 |
4107
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3952 // Extensions |
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3953 |
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3954 #include "runtime/globals_ext.hpp" |
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3955 |
1972 | 3956 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |