Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.hpp @ 12866:f478c98e8114
8024774: assert(_con < t->is_tuple()->cnt()) failed: ProjNode::_con must be in range
Reviewed-by: iveresov, roland, kvn, twisti
author | vlivanov |
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date | Mon, 07 Oct 2013 14:12:23 +0400 |
parents | 1c3486050433 |
children | cefad50507d8 c90e76575b03 d13d7aba8c12 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_GLOBALS_HPP |
26 #define SHARE_VM_RUNTIME_GLOBALS_HPP | |
27 | |
28 #include "utilities/debug.hpp" | |
4868 | 29 |
30 // use this for flags that are true per default in the tiered build | |
31 // but false in non-tiered builds, and vice versa | |
32 #ifdef TIERED | |
33 #define trueInTiered true | |
34 #define falseInTiered false | |
35 #else | |
36 #define trueInTiered false | |
37 #define falseInTiered true | |
38 #endif | |
39 | |
1972 | 40 #ifdef TARGET_ARCH_x86 |
41 # include "globals_x86.hpp" | |
42 #endif | |
43 #ifdef TARGET_ARCH_sparc | |
44 # include "globals_sparc.hpp" | |
45 #endif | |
46 #ifdef TARGET_ARCH_zero | |
47 # include "globals_zero.hpp" | |
48 #endif | |
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49 #ifdef TARGET_ARCH_arm |
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50 # include "globals_arm.hpp" |
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51 #endif |
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52 #ifdef TARGET_ARCH_ppc |
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53 # include "globals_ppc.hpp" |
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54 #endif |
1972 | 55 #ifdef TARGET_OS_FAMILY_linux |
56 # include "globals_linux.hpp" | |
57 #endif | |
58 #ifdef TARGET_OS_FAMILY_solaris | |
59 # include "globals_solaris.hpp" | |
60 #endif | |
61 #ifdef TARGET_OS_FAMILY_windows | |
62 # include "globals_windows.hpp" | |
63 #endif | |
3960 | 64 #ifdef TARGET_OS_FAMILY_bsd |
65 # include "globals_bsd.hpp" | |
66 #endif | |
1972 | 67 #ifdef TARGET_OS_ARCH_linux_x86 |
68 # include "globals_linux_x86.hpp" | |
69 #endif | |
70 #ifdef TARGET_OS_ARCH_linux_sparc | |
71 # include "globals_linux_sparc.hpp" | |
72 #endif | |
73 #ifdef TARGET_OS_ARCH_linux_zero | |
74 # include "globals_linux_zero.hpp" | |
75 #endif | |
76 #ifdef TARGET_OS_ARCH_solaris_x86 | |
77 # include "globals_solaris_x86.hpp" | |
78 #endif | |
79 #ifdef TARGET_OS_ARCH_solaris_sparc | |
80 # include "globals_solaris_sparc.hpp" | |
81 #endif | |
82 #ifdef TARGET_OS_ARCH_windows_x86 | |
83 # include "globals_windows_x86.hpp" | |
84 #endif | |
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85 #ifdef TARGET_OS_ARCH_linux_arm |
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86 # include "globals_linux_arm.hpp" |
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87 #endif |
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88 #ifdef TARGET_OS_ARCH_linux_ppc |
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89 # include "globals_linux_ppc.hpp" |
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90 #endif |
3960 | 91 #ifdef TARGET_OS_ARCH_bsd_x86 |
92 # include "globals_bsd_x86.hpp" | |
93 #endif | |
94 #ifdef TARGET_OS_ARCH_bsd_zero | |
95 # include "globals_bsd_zero.hpp" | |
96 #endif | |
1972 | 97 #ifdef COMPILER1 |
98 #ifdef TARGET_ARCH_x86 | |
99 # include "c1_globals_x86.hpp" | |
100 #endif | |
101 #ifdef TARGET_ARCH_sparc | |
102 # include "c1_globals_sparc.hpp" | |
103 #endif | |
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104 #ifdef TARGET_ARCH_arm |
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105 # include "c1_globals_arm.hpp" |
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106 #endif |
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107 #ifdef TARGET_ARCH_ppc |
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108 # include "c1_globals_ppc.hpp" |
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109 #endif |
1972 | 110 #ifdef TARGET_OS_FAMILY_linux |
111 # include "c1_globals_linux.hpp" | |
112 #endif | |
113 #ifdef TARGET_OS_FAMILY_solaris | |
114 # include "c1_globals_solaris.hpp" | |
115 #endif | |
116 #ifdef TARGET_OS_FAMILY_windows | |
117 # include "c1_globals_windows.hpp" | |
118 #endif | |
3960 | 119 #ifdef TARGET_OS_FAMILY_bsd |
120 # include "c1_globals_bsd.hpp" | |
121 #endif | |
1972 | 122 #endif |
123 #ifdef COMPILER2 | |
124 #ifdef TARGET_ARCH_x86 | |
125 # include "c2_globals_x86.hpp" | |
126 #endif | |
127 #ifdef TARGET_ARCH_sparc | |
128 # include "c2_globals_sparc.hpp" | |
129 #endif | |
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130 #ifdef TARGET_ARCH_arm |
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131 # include "c2_globals_arm.hpp" |
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132 #endif |
1972 | 133 #ifdef TARGET_OS_FAMILY_linux |
134 # include "c2_globals_linux.hpp" | |
135 #endif | |
136 #ifdef TARGET_OS_FAMILY_solaris | |
137 # include "c2_globals_solaris.hpp" | |
138 #endif | |
139 #ifdef TARGET_OS_FAMILY_windows | |
140 # include "c2_globals_windows.hpp" | |
141 #endif | |
3960 | 142 #ifdef TARGET_OS_FAMILY_bsd |
143 # include "c2_globals_bsd.hpp" | |
144 #endif | |
1972 | 145 #endif |
146 #ifdef SHARK | |
147 #ifdef TARGET_ARCH_zero | |
148 # include "shark_globals_zero.hpp" | |
149 #endif | |
150 #endif | |
151 | |
1692 | 152 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) |
0 | 153 define_pd_global(bool, BackgroundCompilation, false); |
154 define_pd_global(bool, UseTLAB, false); | |
155 define_pd_global(bool, CICompileOSR, false); | |
156 define_pd_global(bool, UseTypeProfile, false); | |
157 define_pd_global(bool, UseOnStackReplacement, false); | |
158 define_pd_global(bool, InlineIntrinsics, false); | |
159 define_pd_global(bool, PreferInterpreterNativeStubs, true); | |
160 define_pd_global(bool, ProfileInterpreter, false); | |
161 define_pd_global(bool, ProfileTraps, false); | |
162 define_pd_global(bool, TieredCompilation, false); | |
163 | |
164 define_pd_global(intx, CompileThreshold, 0); | |
165 define_pd_global(intx, BackEdgeThreshold, 0); | |
166 | |
167 define_pd_global(intx, OnStackReplacePercentage, 0); | |
168 define_pd_global(bool, ResizeTLAB, false); | |
169 define_pd_global(intx, FreqInlineSize, 0); | |
1064 | 170 define_pd_global(intx, InlineSmallCode, 0); |
0 | 171 define_pd_global(intx, NewSizeThreadIncrease, 4*K); |
172 define_pd_global(intx, InlineClassNatives, true); | |
173 define_pd_global(intx, InlineUnsafeOps, true); | |
174 define_pd_global(intx, InitialCodeCacheSize, 160*K); | |
175 define_pd_global(intx, ReservedCodeCacheSize, 32*M); | |
176 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
177 define_pd_global(intx, CodeCacheMinBlockLength, 1); | |
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178 define_pd_global(intx, CodeCacheMinimumUseSpace, 200*K); |
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179 define_pd_global(uintx,MetaspaceSize, ScaleForWordSize(4*M)); |
0 | 180 define_pd_global(bool, NeverActAsServerClassMachine, true); |
1064 | 181 define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
0 | 182 #define CI_COMPILER_COUNT 0 |
183 #else | |
184 | |
185 #ifdef COMPILER2 | |
186 #define CI_COMPILER_COUNT 2 | |
187 #else | |
188 #define CI_COMPILER_COUNT 1 | |
189 #endif // COMPILER2 | |
190 | |
191 #endif // no compilers | |
192 | |
193 // string type aliases used only in this file | |
194 typedef const char* ccstr; | |
195 typedef const char* ccstrlist; // represents string arguments which accumulate | |
196 | |
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197 struct Flag { |
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198 enum Flags { |
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199 // value origin |
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200 DEFAULT = 0, |
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201 COMMAND_LINE = 1, |
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202 ENVIRON_VAR = 2, |
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203 CONFIG_FILE = 3, |
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204 MANAGEMENT = 4, |
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205 ERGONOMIC = 5, |
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206 ATTACH_ON_DEMAND = 6, |
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207 INTERNAL = 7, |
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208 |
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209 LAST_VALUE_ORIGIN = INTERNAL, |
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210 VALUE_ORIGIN_BITS = 4, |
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211 VALUE_ORIGIN_MASK = right_n_bits(VALUE_ORIGIN_BITS), |
0 | 212 |
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213 // flag kind |
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214 KIND_PRODUCT = 1 << 4, |
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215 KIND_MANAGEABLE = 1 << 5, |
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216 KIND_DIAGNOSTIC = 1 << 6, |
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217 KIND_EXPERIMENTAL = 1 << 7, |
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218 KIND_NOT_PRODUCT = 1 << 8, |
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219 KIND_DEVELOP = 1 << 9, |
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220 KIND_PLATFORM_DEPENDENT = 1 << 10, |
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221 KIND_READ_WRITE = 1 << 11, |
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222 KIND_C1 = 1 << 12, |
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223 KIND_C2 = 1 << 13, |
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224 KIND_ARCH = 1 << 14, |
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225 KIND_SHARK = 1 << 15, |
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226 KIND_LP64_PRODUCT = 1 << 16, |
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227 KIND_COMMERCIAL = 1 << 17, |
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228 |
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229 KIND_MASK = ~VALUE_ORIGIN_MASK |
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230 }; |
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231 |
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232 const char* _type; |
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233 const char* _name; |
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234 void* _addr; |
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235 NOT_PRODUCT(const char* _doc;) |
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236 Flags _flags; |
0 | 237 |
238 // points to all Flags static array | |
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239 static Flag* flags; |
0 | 240 |
241 // number of flags | |
242 static size_t numFlags; | |
243 | |
11070 | 244 static Flag* find_flag(const char* name, size_t length, bool allow_locked = false); |
245 static Flag* fuzzy_match(const char* name, size_t length, bool allow_locked = false); | |
0 | 246 |
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247 void check_writable(); |
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248 |
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249 bool is_bool() const; |
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250 bool get_bool() const; |
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251 void set_bool(bool value); |
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252 |
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253 bool is_intx() const; |
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254 intx get_intx() const; |
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255 void set_intx(intx value); |
0 | 256 |
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257 bool is_uintx() const; |
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258 uintx get_uintx() const; |
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259 void set_uintx(uintx value); |
0 | 260 |
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261 bool is_uint64_t() const; |
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262 uint64_t get_uint64_t() const; |
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263 void set_uint64_t(uint64_t value); |
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264 |
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265 bool is_double() const; |
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266 double get_double() const; |
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267 void set_double(double value); |
0 | 268 |
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269 bool is_ccstr() const; |
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270 bool ccstr_accumulates() const; |
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271 ccstr get_ccstr() const; |
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272 void set_ccstr(ccstr value); |
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273 |
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274 Flags get_origin(); |
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275 void set_origin(Flags origin); |
1064 | 276 |
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277 bool is_default(); |
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278 bool is_ergonomic(); |
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279 bool is_command_line(); |
0 | 280 |
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281 bool is_product() const; |
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282 bool is_manageable() const; |
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283 bool is_diagnostic() const; |
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284 bool is_experimental() const; |
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285 bool is_notproduct() const; |
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286 bool is_develop() const; |
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287 bool is_read_write() const; |
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288 bool is_commercial() const; |
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289 |
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290 bool is_constant_in_binary() const; |
0 | 291 |
292 bool is_unlocker() const; | |
293 bool is_unlocked() const; | |
294 bool is_writeable() const; | |
295 bool is_external() const; | |
296 | |
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297 bool is_unlocker_ext() const; |
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298 bool is_unlocked_ext() const; |
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299 bool is_writeable_ext() const; |
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300 bool is_external_ext() const; |
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301 |
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302 void get_locked_message(char*, int) const; |
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303 void get_locked_message_ext(char*, int) const; |
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304 |
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305 void print_on(outputStream* st, bool withComments = false ); |
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306 void print_kind(outputStream* st); |
0 | 307 void print_as_flag(outputStream* st); |
308 }; | |
309 | |
310 // debug flags control various aspects of the VM and are global accessible | |
311 | |
312 // use FlagSetting to temporarily change some debug flag | |
313 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
314 // restored to previous value upon leaving scope | |
315 class FlagSetting { | |
316 bool val; | |
317 bool* flag; | |
318 public: | |
319 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
320 ~FlagSetting() { *flag = val; } | |
321 }; | |
322 | |
323 | |
324 class CounterSetting { | |
325 intx* counter; | |
326 public: | |
327 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
328 ~CounterSetting() { (*counter)--; } | |
329 }; | |
330 | |
331 | |
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332 class UIntFlagSetting { |
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333 uintx val; |
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334 uintx* flag; |
0 | 335 public: |
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336 UIntFlagSetting(uintx& fl, uintx newValue) { flag = &fl; val = fl; fl = newValue; } |
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337 ~UIntFlagSetting() { *flag = val; } |
0 | 338 }; |
339 | |
340 | |
341 class DoubleFlagSetting { | |
342 double val; | |
343 double* flag; | |
344 public: | |
345 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
346 ~DoubleFlagSetting() { *flag = val; } | |
347 }; | |
348 | |
349 | |
350 class CommandLineFlags { | |
351 public: | |
352 static bool boolAt(char* name, size_t len, bool* value); | |
353 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
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354 static bool boolAtPut(char* name, size_t len, bool* value, Flag::Flags origin); |
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355 static bool boolAtPut(char* name, bool* value, Flag::Flags origin) { return boolAtPut(name, strlen(name), value, origin); } |
0 | 356 |
357 static bool intxAt(char* name, size_t len, intx* value); | |
358 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
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359 static bool intxAtPut(char* name, size_t len, intx* value, Flag::Flags origin); |
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360 static bool intxAtPut(char* name, intx* value, Flag::Flags origin) { return intxAtPut(name, strlen(name), value, origin); } |
0 | 361 |
362 static bool uintxAt(char* name, size_t len, uintx* value); | |
363 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
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364 static bool uintxAtPut(char* name, size_t len, uintx* value, Flag::Flags origin); |
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365 static bool uintxAtPut(char* name, uintx* value, Flag::Flags origin) { return uintxAtPut(name, strlen(name), value, origin); } |
0 | 366 |
1064 | 367 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
368 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
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369 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, Flag::Flags origin); |
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370 static bool uint64_tAtPut(char* name, uint64_t* value, Flag::Flags origin) { return uint64_tAtPut(name, strlen(name), value, origin); } |
1064 | 371 |
0 | 372 static bool doubleAt(char* name, size_t len, double* value); |
373 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
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374 static bool doubleAtPut(char* name, size_t len, double* value, Flag::Flags origin); |
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375 static bool doubleAtPut(char* name, double* value, Flag::Flags origin) { return doubleAtPut(name, strlen(name), value, origin); } |
0 | 376 |
377 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
378 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
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379 static bool ccstrAtPut(char* name, size_t len, ccstr* value, Flag::Flags origin); |
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380 static bool ccstrAtPut(char* name, ccstr* value, Flag::Flags origin) { return ccstrAtPut(name, strlen(name), value, origin); } |
0 | 381 |
382 // Returns false if name is not a command line flag. | |
383 static bool wasSetOnCmdline(const char* name, bool* value); | |
4773 | 384 static void printSetFlags(outputStream* out); |
0 | 385 |
4773 | 386 static void printFlags(outputStream* out, bool withComments); |
0 | 387 |
388 static void verify() PRODUCT_RETURN; | |
389 }; | |
390 | |
391 // use this for flags that are true by default in the debug version but | |
392 // false in the optimized version, and vice versa | |
393 #ifdef ASSERT | |
394 #define trueInDebug true | |
395 #define falseInDebug false | |
396 #else | |
397 #define trueInDebug false | |
398 #define falseInDebug true | |
399 #endif | |
400 | |
401 // use this for flags that are true per default in the product build | |
402 // but false in development builds, and vice versa | |
403 #ifdef PRODUCT | |
404 #define trueInProduct true | |
405 #define falseInProduct false | |
406 #else | |
407 #define trueInProduct false | |
408 #define falseInProduct true | |
409 #endif | |
410 | |
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411 #ifdef JAVASE_EMBEDDED |
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412 #define falseInEmbedded false |
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413 #else |
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414 #define falseInEmbedded true |
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415 #endif |
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416 |
0 | 417 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
418 // product flags are always settable / visible | |
419 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
420 | |
421 // A flag must be declared with one of the following types: | |
422 // bool, intx, uintx, ccstr. | |
423 // The type "ccstr" is an alias for "const char*" and is used | |
424 // only in this file, because the macrology requires single-token type names. | |
425 | |
426 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
427 // They are to be used for VM quality assurance or field diagnosis | |
428 // of VM bugs. They are hidden so that users will not be encouraged to | |
429 // try them as if they were VM ordinary execution options. However, they | |
430 // are available in the product version of the VM. Under instruction | |
431 // from support engineers, VM customers can turn them on to collect | |
432 // diagnostic information about VM problems. To use a VM diagnostic | |
433 // option, you must first specify +UnlockDiagnosticVMOptions. | |
434 // (This master switch also affects the behavior of -Xprintflags.) | |
350
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435 // |
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436 // experimental flags are in support of features that are not |
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437 // part of the officially supported product, but are available |
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438 // for experimenting with. They could, for example, be performance |
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439 // features that may not have undergone full or rigorous QA, but which may |
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440 // help performance in some cases and released for experimentation |
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441 // by the community of users and developers. This flag also allows one to |
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442 // be able to build a fully supported product that nonetheless also |
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443 // ships with some unsupported, lightly tested, experimental features. |
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444 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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445 // UnlockExperimentalVMOptions flag, which allows the control and |
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446 // modification of the experimental flags. |
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447 // |
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448 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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449 // and they are not supported on production loads, except under explicit |
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450 // direction from support engineers. |
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451 // |
0 | 452 // manageable flags are writeable external product flags. |
453 // They are dynamically writeable through the JDK management interface | |
454 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
455 // These flags are external exported interface (see CCC). The list of | |
456 // manageable flags can be queried programmatically through the management | |
457 // interface. | |
458 // | |
459 // A flag can be made as "manageable" only if | |
460 // - the flag is defined in a CCC as an external exported interface. | |
461 // - the VM implementation supports dynamic setting of the flag. | |
462 // This implies that the VM must *always* query the flag variable | |
463 // and not reuse state related to the flag state at any given time. | |
464 // - you want the flag to be queried programmatically by the customers. | |
465 // | |
466 // product_rw flags are writeable internal product flags. | |
467 // They are like "manageable" flags but for internal/private use. | |
468 // The list of product_rw flags are internal/private flags which | |
469 // may be changed/removed in a future release. It can be set | |
470 // through the management interface to get/set value | |
471 // when the name of flag is supplied. | |
472 // | |
473 // A flag can be made as "product_rw" only if | |
474 // - the VM implementation supports dynamic setting of the flag. | |
475 // This implies that the VM must *always* query the flag variable | |
476 // and not reuse state related to the flag state at any given time. | |
477 // | |
478 // Note that when there is a need to support develop flags to be writeable, | |
479 // it can be done in the same way as product_rw. | |
480 | |
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481 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
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482 \ |
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483 lp64_product(bool, UseCompressedOops, false, \ |
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484 "Use 32-bit object references in 64-bit VM " \ |
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485 "lp64_product means flag is always constant in 32 bit VM") \ |
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486 \ |
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487 lp64_product(bool, UseCompressedClassPointers, false, \ |
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488 "Use 32-bit class pointers in 64-bit VM " \ |
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489 "lp64_product means flag is always constant in 32 bit VM") \ |
0 | 490 \ |
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491 notproduct(bool, CheckCompressedOops, true, \ |
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492 "generate checks in encoding/decoding code in debug VM") \ |
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493 \ |
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494 product_pd(uintx, HeapBaseMinAddress, \ |
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495 "OS specific low limit for heap base address") \ |
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496 \ |
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497 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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498 "Print compressed oops base address and encoding mode") \ |
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499 \ |
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500 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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501 "Default object alignment in bytes, 8 is minimum") \ |
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502 \ |
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503 product(bool, AssumeMP, false, \ |
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504 "Instruct the VM to assume multiple processors are available") \ |
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505 \ |
0 | 506 /* UseMembar is theoretically a temp flag used for memory barrier \ |
507 * removal testing. It was supposed to be removed before FCS but has \ | |
508 * been re-added (see 6401008) */ \ | |
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509 product_pd(bool, UseMembar, \ |
0 | 510 "(Unstable) Issues membars on thread state transitions") \ |
511 \ | |
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512 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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513 * that don't support it. This will be replaced by processor detection \ |
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514 * logic. \ |
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515 */ \ |
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516 product(bool, UsePPCLWSYNC, true, \ |
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517 "Use lwsync instruction if true, else use slower sync") \ |
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518 \ |
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519 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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520 "Whether to clean the chunk pool asynchronously") \ |
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521 \ |
6818 | 522 /* Temporary: See 6948537 */ \ |
1518
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523 experimental(bool, UseMemSetInBOT, true, \ |
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524 "(Unstable) uses memset in BOT updates in GC code") \ |
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525 \ |
0 | 526 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
350
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527 "Enable normal processing of flags relating to field diagnostics")\ |
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528 \ |
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529 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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530 "Enable normal processing of flags relating to experimental features")\ |
0 | 531 \ |
532 product(bool, JavaMonitorsInStackTrace, true, \ | |
533 "Print info. about Java monitor locks when the stacks are dumped")\ | |
534 \ | |
535 product_pd(bool, UseLargePages, \ | |
536 "Use large page memory") \ | |
537 \ | |
389
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538 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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539 "Allocate large pages individually for better affinity") \ |
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540 \ |
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541 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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542 "Fail large pages individual allocation") \ |
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543 \ |
0 | 544 develop(bool, TracePageSizes, false, \ |
545 "Trace page size selection and usage.") \ | |
546 \ | |
547 product(bool, UseNUMA, false, \ | |
548 "Use NUMA if available") \ | |
549 \ | |
3885 | 550 product(bool, UseNUMAInterleaving, false, \ |
551 "Interleave memory across NUMA nodes if available") \ | |
552 \ | |
553 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
554 "Granularity to use for NUMA interleaving on Windows OS") \ | |
555 \ | |
462
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556 product(bool, ForceNUMA, false, \ |
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557 "Force NUMA optimizations on single-node/UMA systems") \ |
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558 \ |
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559 product(uintx, NUMAChunkResizeWeight, 20, \ |
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560 "Percentage (0-100) used to weigh the current sample when " \ |
0 | 561 "computing exponentially decaying average for " \ |
562 "AdaptiveNUMAChunkSizing") \ | |
563 \ | |
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564 product(uintx, NUMASpaceResizeRate, 1*G, \ |
0 | 565 "Do not reallocate more that this amount per collection") \ |
566 \ | |
567 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
568 "Enable adaptive chunk sizing for NUMA") \ | |
569 \ | |
570 product(bool, NUMAStats, false, \ | |
571 "Print NUMA stats in detailed heap information") \ | |
572 \ | |
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573 product(uintx, NUMAPageScanRate, 256, \ |
0 | 574 "Maximum number of pages to include in the page scan procedure") \ |
575 \ | |
576 product_pd(bool, NeedsDeoptSuspend, \ | |
577 "True for register window machines (sparc/ia64)") \ | |
578 \ | |
579 product(intx, UseSSE, 99, \ | |
580 "Highest supported SSE instructions set on x86/x64") \ | |
581 \ | |
6894 | 582 product(bool, UseAES, false, \ |
583 "Control whether AES instructions can be used on x86/x64") \ | |
584 \ | |
0 | 585 product(uintx, LargePageSizeInBytes, 0, \ |
586 "Large page size (0 to let VM choose the page size") \ | |
587 \ | |
588 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
589 "Use large pages if max heap is at least this big") \ | |
590 \ | |
591 product(bool, ForceTimeHighResolution, false, \ | |
592 "Using high time resolution(For Win32 only)") \ | |
593 \ | |
594 develop(bool, TraceItables, false, \ | |
595 "Trace initialization and use of itables") \ | |
596 \ | |
597 develop(bool, TracePcPatching, false, \ | |
598 "Trace usage of frame::patch_pc") \ | |
599 \ | |
600 develop(bool, TraceJumps, false, \ | |
601 "Trace assembly jumps in thread ring buffer") \ | |
602 \ | |
603 develop(bool, TraceRelocator, false, \ | |
604 "Trace the bytecode relocator") \ | |
605 \ | |
606 develop(bool, TraceLongCompiles, false, \ | |
607 "Print out every time compilation is longer than " \ | |
608 "a given threashold") \ | |
609 \ | |
610 develop(bool, SafepointALot, false, \ | |
611 "Generates a lot of safepoints. Works with " \ | |
612 "GuaranteedSafepointInterval") \ | |
613 \ | |
614 product_pd(bool, BackgroundCompilation, \ | |
615 "A thread requesting compilation is not blocked during " \ | |
616 "compilation") \ | |
617 \ | |
618 product(bool, PrintVMQWaitTime, false, \ | |
619 "Prints out the waiting time in VM operation queue") \ | |
620 \ | |
621 develop(bool, NoYieldsInMicrolock, false, \ | |
622 "Disable yields in microlock") \ | |
623 \ | |
624 develop(bool, TraceOopMapGeneration, false, \ | |
625 "Shows oopmap generation") \ | |
626 \ | |
627 product(bool, MethodFlushing, true, \ | |
628 "Reclamation of zombie and not-entrant methods") \ | |
629 \ | |
630 develop(bool, VerifyStack, false, \ | |
631 "Verify stack of each thread when it is entering a runtime call") \ | |
632 \ | |
4059
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633 diagnostic(bool, ForceUnreachable, false, \ |
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634 "Make all non code cache addresses to be unreachable with forcing use of 64bit literal fixups") \ |
0 | 635 \ |
636 notproduct(bool, StressDerivedPointers, false, \ | |
637 "Force scavenge when a derived pointers is detected on stack " \ | |
638 "after rtm call") \ | |
639 \ | |
640 develop(bool, TraceDerivedPointers, false, \ | |
641 "Trace traversal of derived pointers on stack") \ | |
642 \ | |
643 notproduct(bool, TraceCodeBlobStacks, false, \ | |
644 "Trace stack-walk of codeblobs") \ | |
645 \ | |
646 product(bool, PrintJNIResolving, false, \ | |
647 "Used to implement -v:jni") \ | |
648 \ | |
649 notproduct(bool, PrintRewrites, false, \ | |
650 "Print methods that are being rewritten") \ | |
651 \ | |
652 product(bool, UseInlineCaches, true, \ | |
653 "Use Inline Caches for virtual calls ") \ | |
654 \ | |
655 develop(bool, InlineArrayCopy, true, \ | |
656 "inline arraycopy native that is known to be part of " \ | |
657 "base library DLL") \ | |
658 \ | |
659 develop(bool, InlineObjectHash, true, \ | |
660 "inline Object::hashCode() native that is known to be part " \ | |
661 "of base library DLL") \ | |
662 \ | |
663 develop(bool, InlineNatives, true, \ | |
664 "inline natives that are known to be part of base library DLL") \ | |
665 \ | |
666 develop(bool, InlineMathNatives, true, \ | |
667 "inline SinD, CosD, etc.") \ | |
668 \ | |
669 develop(bool, InlineClassNatives, true, \ | |
670 "inline Class.isInstance, etc") \ | |
671 \ | |
672 develop(bool, InlineThreadNatives, true, \ | |
673 "inline Thread.currentThread, etc") \ | |
674 \ | |
675 develop(bool, InlineUnsafeOps, true, \ | |
676 "inline memory ops (native methods) from sun.misc.Unsafe") \ | |
677 \ | |
4873
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7013347: allow crypto functions to be called inline to enhance performance
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|
678 product(bool, CriticalJNINatives, true, \ |
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diff
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|
679 "check for critical JNI entry points") \ |
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diff
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|
680 \ |
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|
681 notproduct(bool, StressCriticalJNINatives, false, \ |
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|
682 "Exercise register saving code in critical natives") \ |
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diff
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|
683 \ |
681 | 684 product(bool, UseSSE42Intrinsics, false, \ |
685 "SSE4.2 versions of intrinsics") \ | |
686 \ | |
6894 | 687 product(bool, UseAESIntrinsics, false, \ |
688 "use intrinsics for AES versions of crypto") \ | |
689 \ | |
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
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|
690 product(bool, UseCRC32Intrinsics, false, \ |
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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parents:
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diff
changeset
|
691 "use intrinsics for java.util.zip.CRC32") \ |
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
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diff
changeset
|
692 \ |
0 | 693 develop(bool, TraceCallFixup, false, \ |
694 "traces all call fixups") \ | |
695 \ | |
696 develop(bool, DeoptimizeALot, false, \ | |
697 "deoptimize at every exit from the runtime system") \ | |
698 \ | |
434 | 699 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
0 | 700 "a comma separated list of bcis to deoptimize at") \ |
701 \ | |
702 product(bool, DeoptimizeRandom, false, \ | |
703 "deoptimize random frames on random exit from the runtime system")\ | |
704 \ | |
705 notproduct(bool, ZombieALot, false, \ | |
706 "creates zombies (non-entrant) at exit from the runt. system") \ | |
707 \ | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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2125
diff
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|
708 product(bool, UnlinkSymbolsALot, false, \ |
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
709 "unlink unreferenced symbols from the symbol table at safepoints")\ |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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|
710 \ |
0 | 711 notproduct(bool, WalkStackALot, false, \ |
712 "trace stack (no print) at every exit from the runtime system") \ | |
713 \ | |
4006 | 714 product(bool, Debugging, false, \ |
0 | 715 "set when executing debug methods in debug.ccp " \ |
716 "(to prevent triggering assertions)") \ | |
717 \ | |
718 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
719 "Enable strict checks that safepoints cannot happen for threads " \ | |
720 "that used No_Safepoint_Verifier") \ | |
721 \ | |
722 notproduct(bool, VerifyLastFrame, false, \ | |
723 "Verify oops on last frame on entry to VM") \ | |
724 \ | |
725 develop(bool, TraceHandleAllocation, false, \ | |
726 "Prints out warnings when suspicious many handles are allocated") \ | |
727 \ | |
728 product(bool, UseCompilerSafepoints, true, \ | |
729 "Stop at safepoints in compiled code") \ | |
730 \ | |
731 product(bool, FailOverToOldVerifier, true, \ | |
732 "fail over to old verifier when split verifier fails") \ | |
733 \ | |
734 develop(bool, ShowSafepointMsgs, false, \ | |
735 "Show msg. about safepoint synch.") \ | |
736 \ | |
737 product(bool, SafepointTimeout, false, \ | |
738 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
739 "milliseconds if failed to reach safepoint") \ | |
740 \ | |
741 develop(bool, DieOnSafepointTimeout, false, \ | |
742 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
743 \ | |
744 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
745 /* typically, at most a few retries are needed */ \ | |
746 product(intx, SuspendRetryCount, 50, \ | |
747 "Maximum retry count for an external suspend request") \ | |
748 \ | |
749 product(intx, SuspendRetryDelay, 5, \ | |
750 "Milliseconds to delay per retry (* current_retry_count)") \ | |
751 \ | |
752 product(bool, AssertOnSuspendWaitFailure, false, \ | |
753 "Assert/Guarantee on external suspend wait failure") \ | |
754 \ | |
755 product(bool, TraceSuspendWaitFailures, false, \ | |
756 "Trace external suspend wait failures") \ | |
757 \ | |
758 product(bool, MaxFDLimit, true, \ | |
759 "Bump the number of file descriptors to max in solaris.") \ | |
760 \ | |
4872
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761 diagnostic(bool, LogEvents, true, \ |
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|
762 "Enable the various ring buffer event logs") \ |
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7141200: log some interesting information in ring buffers for crashes
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|
763 \ |
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|
764 diagnostic(uintx, LogEventsBufferEntries, 10, \ |
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|
765 "Enable the various ring buffer event logs") \ |
0 | 766 \ |
767 product(bool, BytecodeVerificationRemote, true, \ | |
768 "Enables the Java bytecode verifier for remote classes") \ | |
769 \ | |
770 product(bool, BytecodeVerificationLocal, false, \ | |
771 "Enables the Java bytecode verifier for local classes") \ | |
772 \ | |
773 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
774 "Force exceptions on FP stack under/overflow") \ | |
775 \ | |
776 develop(bool, VerifyStackAtCalls, false, \ | |
777 "Verify that the stack pointer is unchanged after calls") \ | |
778 \ | |
779 develop(bool, TraceJavaAssertions, false, \ | |
780 "Trace java language assertions") \ | |
781 \ | |
782 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
783 "temporary - see javaClasses.cpp") \ | |
784 \ | |
785 notproduct(bool, PrintMallocFree, false, \ | |
786 "Trace calls to C heap malloc/free allocation") \ | |
787 \ | |
1681
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6953477: Increase portability and flexibility of building Hotspot
bobv
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diff
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|
788 product(bool, PrintOopAddress, false, \ |
0 | 789 "Always print the location of the oop") \ |
790 \ | |
791 notproduct(bool, VerifyCodeCacheOften, false, \ | |
792 "Verify compiled-code cache often") \ | |
793 \ | |
794 develop(bool, ZapDeadCompiledLocals, false, \ | |
795 "Zap dead locals in compiler frames") \ | |
796 \ | |
797 notproduct(bool, ZapDeadLocalsOld, false, \ | |
798 "Zap dead locals (old version, zaps all frames when " \ | |
799 "entering the VM") \ | |
800 \ | |
801 notproduct(bool, CheckOopishValues, false, \ | |
802 "Warn if value contains oop ( requires ZapDeadLocals)") \ | |
803 \ | |
804 develop(bool, UseMallocOnly, false, \ | |
805 "use only malloc/free for allocation (no resource area/arena)") \ | |
806 \ | |
807 develop(bool, PrintMalloc, false, \ | |
808 "print all malloc/free calls") \ | |
809 \ | |
2250 | 810 develop(bool, PrintMallocStatistics, false, \ |
811 "print malloc/free statistics") \ | |
812 \ | |
0 | 813 develop(bool, ZapResourceArea, trueInDebug, \ |
814 "Zap freed resource/arena space with 0xABABABAB") \ | |
815 \ | |
816 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
817 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
818 \ | |
819 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
820 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
821 \ | |
1836
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|
822 notproduct(bool, ZapStackSegments, trueInDebug, \ |
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|
823 "Zap allocated/freed Stack segments with 0xFADFADED") \ |
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|
824 \ |
263
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|
825 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
0 | 826 "Zap unused heap space with 0xBAADBABE") \ |
827 \ | |
263
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diff
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|
828 develop(bool, TraceZapUnusedHeapArea, false, \ |
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829 "Trace zapping of unused heap space") \ |
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6672698: mangle_unused_area() should not remangle the entire heap at each collection.
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|
830 \ |
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6672698: mangle_unused_area() should not remangle the entire heap at each collection.
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|
831 develop(bool, CheckZapUnusedHeapArea, false, \ |
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diff
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|
832 "Check zapping of unused heap space") \ |
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|
833 \ |
481
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diff
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|
834 develop(bool, ZapFillerObjects, trueInDebug, \ |
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parents:
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diff
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|
835 "Zap filler objects with 0xDEAFBABE") \ |
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836 \ |
0 | 837 develop(bool, PrintVMMessages, true, \ |
838 "Print vm messages on console") \ | |
839 \ | |
840 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
841 "Print the time the application has been running") \ | |
842 \ | |
843 product(bool, PrintGCApplicationStoppedTime, false, \ | |
844 "Print the time the application has been stopped") \ | |
845 \ | |
6605 | 846 diagnostic(bool, VerboseVerification, false, \ |
847 "Display detailed verification details") \ | |
848 \ | |
1490
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diff
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|
849 notproduct(uintx, ErrorHandlerTest, 0, \ |
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|
850 "If > 0, provokes an error after VM initialization; the value" \ |
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|
851 "determines which error to provoke. See test_error_handler()" \ |
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|
852 "in debug.cpp.") \ |
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diff
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|
853 \ |
0 | 854 develop(bool, Verbose, false, \ |
855 "Prints additional debugging information from other modes") \ | |
856 \ | |
857 develop(bool, PrintMiscellaneous, false, \ | |
858 "Prints uncategorized debugging information (requires +Verbose)") \ | |
859 \ | |
860 develop(bool, WizardMode, false, \ | |
861 "Prints much more debugging information") \ | |
862 \ | |
863 product(bool, ShowMessageBoxOnError, false, \ | |
864 "Keep process alive on VM fatal error") \ | |
865 \ | |
2204
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diff
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|
866 product(bool, CreateMinidumpOnCrash, false, \ |
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diff
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|
867 "Create minidump on VM fatal error") \ |
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|
868 \ |
0 | 869 product_pd(bool, UseOSErrorReporting, \ |
870 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
871 \ | |
872 product(bool, SuppressFatalErrorMessage, false, \ | |
873 "Do NO Fatal Error report [Avoid deadlock]") \ | |
874 \ | |
875 product(ccstrlist, OnError, "", \ | |
876 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
877 "for examples") \ | |
878 \ | |
879 product(ccstrlist, OnOutOfMemoryError, "", \ | |
880 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
881 \ | |
615
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diff
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|
882 manageable(bool, HeapDumpBeforeFullGC, false, \ |
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diff
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|
883 "Dump heap to file before any major stop-world GC") \ |
c6c601a0f2d6
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diff
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|
884 \ |
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diff
changeset
|
885 manageable(bool, HeapDumpAfterFullGC, false, \ |
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diff
changeset
|
886 "Dump heap to file after any major stop-world GC") \ |
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diff
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|
887 \ |
0 | 888 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
889 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
890 \ | |
891 manageable(ccstr, HeapDumpPath, NULL, \ | |
892 "When HeapDumpOnOutOfMemoryError is on, the path (filename or" \ | |
893 "directory) of the dump file (defaults to java_pid<pid>.hprof" \ | |
894 "in the working directory)") \ | |
895 \ | |
896 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
897 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
898 "when the heap usage is larger than this") \ | |
899 \ | |
900 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
901 "Approximate segment size when generating a segmented heap dump") \ | |
902 \ | |
903 develop(bool, BreakAtWarning, false, \ | |
904 "Execute breakpoint upon encountering VM warning") \ | |
905 \ | |
906 develop(bool, TraceVMOperation, false, \ | |
907 "Trace vm operations") \ | |
908 \ | |
909 develop(bool, UseFakeTimers, false, \ | |
910 "Tells whether the VM should use system time or a fake timer") \ | |
911 \ | |
6197 | 912 product(ccstr, NativeMemoryTracking, "off", \ |
913 "Native memory tracking options") \ | |
914 \ | |
6770
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|
915 diagnostic(bool, PrintNMTStatistics, false, \ |
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diff
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|
916 "Print native memory tracking summary data if it is on") \ |
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diff
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|
917 \ |
8810
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diff
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|
918 diagnostic(bool, AutoShutdownNMT, true, \ |
06db4c0afbf3
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diff
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|
919 "Automatically shutdown native memory tracking under stress " \ |
06db4c0afbf3
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diff
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|
920 "situation. When set to false, native memory tracking tries to " \ |
06db4c0afbf3
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diff
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|
921 "stay alive at the expense of JVM performance") \ |
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diff
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|
922 \ |
0 | 923 diagnostic(bool, LogCompilation, false, \ |
12257
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diff
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|
924 "Log compilation activity in detail to LogFile") \ |
0 | 925 \ |
926 product(bool, PrintCompilation, false, \ | |
927 "Print compilations") \ | |
928 \ | |
929 diagnostic(bool, TraceNMethodInstalls, false, \ | |
930 "Trace nmethod intallation") \ | |
931 \ | |
4119
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diff
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|
932 diagnostic(intx, ScavengeRootsInCode, 2, \ |
989
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diff
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|
933 "0: do not allow scavengable oops in the code cache; " \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
934 "1: allow scavenging from the code cache; " \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
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diff
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|
935 "2: emit as many constants as the compiler can see") \ |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
936 \ |
0 | 937 product(bool, AlwaysRestoreFPU, false, \ |
938 "Restore the FPU control word after every JNI call (expensive)") \ | |
939 \ | |
4064
670a74b863fc
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diff
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|
940 diagnostic(bool, PrintCompilation2, false, \ |
0 | 941 "Print additional statistics per compilation") \ |
942 \ | |
100
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|
943 diagnostic(bool, PrintAdapterHandlers, false, \ |
0 | 944 "Print code generated for i2c/c2i adapters") \ |
945 \ | |
6266
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|
946 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
1d7922586cf6
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|
947 "Verify that i2c/c2i adapters are called properly") \ |
1d7922586cf6
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|
948 \ |
1207
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parents:
1206
diff
changeset
|
949 develop(bool, VerifyAdapterSharing, false, \ |
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parents:
1206
diff
changeset
|
950 "Verify that the code for shared adapters is the equivalent") \ |
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parents:
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diff
changeset
|
951 \ |
100
c7c777385a15
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76
diff
changeset
|
952 diagnostic(bool, PrintAssembly, false, \ |
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diff
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|
953 "Print assembly code (using external disassembler.so)") \ |
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diff
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|
954 \ |
370
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parents:
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|
955 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
100
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jrose
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76
diff
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|
956 "Options string passed to disassembler.so") \ |
c7c777385a15
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jrose
parents:
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diff
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|
957 \ |
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diff
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|
958 diagnostic(bool, PrintNMethods, false, \ |
0 | 959 "Print assembly code for nmethods when generated") \ |
960 \ | |
100
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76
diff
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|
961 diagnostic(bool, PrintNativeNMethods, false, \ |
0 | 962 "Print assembly code for native nmethods when generated") \ |
963 \ | |
964 develop(bool, PrintDebugInfo, false, \ | |
965 "Print debug information for all nmethods when generated") \ | |
966 \ | |
967 develop(bool, PrintRelocations, false, \ | |
968 "Print relocation information for all nmethods when generated") \ | |
969 \ | |
970 develop(bool, PrintDependencies, false, \ | |
971 "Print dependency information for all nmethods when generated") \ | |
972 \ | |
973 develop(bool, PrintExceptionHandlers, false, \ | |
974 "Print exception handler tables for all nmethods when generated") \ | |
975 \ | |
7428
2d6c433b1f38
8004741: Missing compiled exception handle table entry for multidimensional array allocation
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parents:
6985
diff
changeset
|
976 develop(bool, StressCompiledExceptionHandlers, false, \ |
2d6c433b1f38
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kvn
parents:
6985
diff
changeset
|
977 "Exercise compiled exception handlers") \ |
2d6c433b1f38
8004741: Missing compiled exception handle table entry for multidimensional array allocation
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parents:
6985
diff
changeset
|
978 \ |
0 | 979 develop(bool, InterceptOSException, false, \ |
980 "Starts debugger when an implicit OS (e.g., NULL) " \ | |
981 "exception happens") \ | |
982 \ | |
7595
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8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
983 product(bool, PrintCodeCache, false, \ |
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8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
984 "Print the code cache memory usage when exiting") \ |
0 | 985 \ |
986 develop(bool, PrintCodeCache2, false, \ | |
7595
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
987 "Print detailed usage info on the code cache when exiting") \ |
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
parents:
7467
diff
changeset
|
988 \ |
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
vladidan
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diff
changeset
|
989 product(bool, PrintCodeCacheOnCompilation, false, \ |
9deda4d8e126
8005204: Code Cache Reduction: command line options implementation
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|
990 "Print the code cache memory usage each time a method is compiled") \ |
0 | 991 \ |
100
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diff
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|
992 diagnostic(bool, PrintStubCode, false, \ |
0 | 993 "Print generated stub code") \ |
994 \ | |
995 product(bool, StackTraceInThrowable, true, \ | |
996 "Collect backtrace in throwable when exception happens") \ | |
997 \ | |
998 product(bool, OmitStackTraceInFastThrow, true, \ | |
999 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
1000 \ | |
1001 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
1002 "Prints byte code statictics when dumping profiler output") \ | |
1003 \ | |
1004 product(bool, ProfilerRecordPC, false, \ | |
1005 "Collects tick for each 16 byte interval of compiled code") \ | |
1006 \ | |
1064 | 1007 product(bool, ProfileVM, false, \ |
0 | 1008 "Profiles ticks that fall within VM (either in the VM Thread " \ |
1009 "or VM code called through stubs)") \ | |
1010 \ | |
1011 product(bool, ProfileIntervals, false, \ | |
1012 "Prints profiles for each interval (see ProfileIntervalsTicks)") \ | |
1013 \ | |
1014 notproduct(bool, ProfilerCheckIntervals, false, \ | |
1015 "Collect and print info on spacing of profiler ticks") \ | |
1016 \ | |
1017 develop(bool, PrintJVMWarnings, false, \ | |
1018 "Prints warnings for unimplemented JVM functions") \ | |
1019 \ | |
1870
c77b5c592eab
6392697: Additional flag needed to supress Hotspot warning messages
kamg
parents:
1868
diff
changeset
|
1020 product(bool, PrintWarnings, true, \ |
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kamg
parents:
1868
diff
changeset
|
1021 "Prints JVM warnings to output stream") \ |
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1868
diff
changeset
|
1022 \ |
0 | 1023 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
1024 "Prints warnings for stalled SpinLocks") \ | |
1025 \ | |
1026 product(bool, RegisterFinalizersAtInit, true, \ | |
1027 "Register finalizable objects at end of Object.<init> or " \ | |
1064 | 1028 "after allocation") \ |
0 | 1029 \ |
1030 develop(bool, RegisterReferences, true, \ | |
1031 "Tells whether the VM should register soft/weak/final/phantom " \ | |
1032 "references") \ | |
1033 \ | |
1034 develop(bool, IgnoreRewrites, false, \ | |
1035 "Supress rewrites of bytecodes in the oopmap generator. " \ | |
1036 "This is unsafe!") \ | |
1037 \ | |
1038 develop(bool, PrintCodeCacheExtension, false, \ | |
1039 "Print extension of code cache") \ | |
1040 \ | |
1041 develop(bool, UsePrivilegedStack, true, \ | |
1042 "Enable the security JVM functions") \ | |
1043 \ | |
1044 develop(bool, ProtectionDomainVerification, true, \ | |
1045 "Verifies protection domain before resolution in system " \ | |
1046 "dictionary") \ | |
1047 \ | |
1048 product(bool, ClassUnloading, true, \ | |
1049 "Do unloading of classes") \ | |
1050 \ | |
1051 develop(bool, DisableStartThread, false, \ | |
1052 "Disable starting of additional Java threads " \ | |
1053 "(for debugging only)") \ | |
1054 \ | |
1055 develop(bool, MemProfiling, false, \ | |
1056 "Write memory usage profiling to log file") \ | |
1057 \ | |
1058 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
1059 "Prints the system dictionary at exit") \ | |
1060 \ | |
4864
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4854
diff
changeset
|
1061 experimental(intx, PredictedLoadedClassCount, 0, \ |
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acorn
parents:
4854
diff
changeset
|
1062 "Experimental: Tune loaded class cache starting size.") \ |
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4854
diff
changeset
|
1063 \ |
0 | 1064 diagnostic(bool, UnsyncloadClass, false, \ |
514 | 1065 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
1066 "class loader must call VM synchronized for findClass " \ | |
1067 "and defineClass.") \ | |
1068 \ | |
1069 product(bool, AlwaysLockClassLoader, false, \ | |
1070 "Require the VM to acquire the class loader lock before calling " \ | |
1071 "loadClass() even for class loaders registering " \ | |
1064 | 1072 "as parallel capable") \ |
514 | 1073 \ |
1074 product(bool, AllowParallelDefineClass, false, \ | |
1075 "Allow parallel defineClass requests for class loaders " \ | |
1064 | 1076 "registering as parallel capable") \ |
514 | 1077 \ |
1078 product(bool, MustCallLoadClassInternal, false, \ | |
1064 | 1079 "Call loadClassInternal() rather than loadClass()") \ |
0 | 1080 \ |
1081 product_pd(bool, DontYieldALot, \ | |
1082 "Throw away obvious excess yield calls (for SOLARIS only)") \ | |
1083 \ | |
1084 product_pd(bool, ConvertSleepToYield, \ | |
1085 "Converts sleep(0) to thread yield " \ | |
1086 "(may be off for SOLARIS to improve GUI)") \ | |
1087 \ | |
1088 product(bool, ConvertYieldToSleep, false, \ | |
1089 "Converts yield to a sleep of MinSleepInterval to simulate Win32 "\ | |
1090 "behavior (SOLARIS only)") \ | |
1091 \ | |
1092 product(bool, UseBoundThreads, true, \ | |
1093 "Bind user level threads to kernel threads (for SOLARIS only)") \ | |
1094 \ | |
1095 develop(bool, UseDetachedThreads, true, \ | |
1096 "Use detached threads that are recycled upon termination " \ | |
1097 "(for SOLARIS only)") \ | |
1098 \ | |
1099 product(bool, UseLWPSynchronization, true, \ | |
1100 "Use LWP-based instead of libthread-based synchronization " \ | |
1101 "(SPARC only)") \ | |
1102 \ | |
370
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|
1103 product(ccstr, SyncKnobs, NULL, \ |
0 | 1104 "(Unstable) Various monitor synchronization tunables") \ |
1105 \ | |
1106 product(intx, EmitSync, 0, \ | |
1107 "(Unsafe,Unstable) " \ | |
1108 " Controls emission of inline sync fast-path code") \ | |
1109 \ | |
1587 | 1110 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
1111 \ | |
1112 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
1113 \ | |
0 | 1114 product(intx, SyncFlags, 0, "(Unsafe,Unstable) Experimental Sync flags" ) \ |
1115 \ | |
1116 product(intx, SyncVerbose, 0, "(Unstable)" ) \ | |
1117 \ | |
1118 product(intx, ClearFPUAtPark, 0, "(Unsafe,Unstable)" ) \ | |
1119 \ | |
7587 | 1120 product(intx, hashCode, 5, \ |
0 | 1121 "(Unstable) select hashCode generation algorithm" ) \ |
1122 \ | |
1123 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
1124 "(Unstable, Linux-specific)" \ | |
1125 " avoid NPTL-FUTEX hang pthread_cond_timedwait" ) \ | |
1126 \ | |
1064 | 1127 product(bool, FilterSpuriousWakeups, true, \ |
1128 "Prevent spurious or premature wakeups from object.wait " \ | |
1129 "(Solaris only)") \ | |
0 | 1130 \ |
1131 product(intx, NativeMonitorTimeout, -1, "(Unstable)" ) \ | |
1132 product(intx, NativeMonitorFlags, 0, "(Unstable)" ) \ | |
1133 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)" ) \ | |
1134 \ | |
1135 develop(bool, UsePthreads, false, \ | |
1136 "Use pthread-based instead of libthread-based synchronization " \ | |
1137 "(SPARC only)") \ | |
1138 \ | |
1139 product(bool, AdjustConcurrency, false, \ | |
1140 "call thr_setconcurrency at thread create time to avoid " \ | |
1141 "LWP starvation on MP systems (For Solaris Only)") \ | |
1142 \ | |
1143 product(bool, ReduceSignalUsage, false, \ | |
1144 "Reduce the use of OS signals in Java and/or the VM") \ | |
1145 \ | |
1146 develop_pd(bool, ShareVtableStubs, \ | |
1147 "Share vtable stubs (smaller code but worse branch prediction") \ | |
1148 \ | |
1149 develop(bool, LoadLineNumberTables, true, \ | |
1150 "Tells whether the class file parser loads line number tables") \ | |
1151 \ | |
1152 develop(bool, LoadLocalVariableTables, true, \ | |
1153 "Tells whether the class file parser loads local variable tables")\ | |
1154 \ | |
1155 develop(bool, LoadLocalVariableTypeTables, true, \ | |
1156 "Tells whether the class file parser loads local variable type tables")\ | |
1157 \ | |
1158 product(bool, AllowUserSignalHandlers, false, \ | |
1159 "Do not complain if the application installs signal handlers " \ | |
1160 "(Solaris & Linux only)") \ | |
1161 \ | |
1162 product(bool, UseSignalChaining, true, \ | |
1163 "Use signal-chaining to invoke signal handlers installed " \ | |
1164 "by the application (Solaris & Linux only)") \ | |
1165 \ | |
1166 product(bool, UseAltSigs, false, \ | |
1167 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
1064 | 1168 "internal signals (Solaris only)") \ |
0 | 1169 \ |
1170 product(bool, AllowJNIEnvProxy, false, \ | |
1171 "Allow JNIEnv proxies for jdbx") \ | |
1172 \ | |
1173 product(bool, JNIDetachReleasesMonitors, true, \ | |
1174 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
1175 \ | |
1176 product(bool, RestoreMXCSROnJNICalls, false, \ | |
1177 "Restore MXCSR when returning from JNI calls") \ | |
1178 \ | |
1179 product(bool, CheckJNICalls, false, \ | |
1180 "Verify all arguments to JNI calls") \ | |
1181 \ | |
1182 product(bool, UseFastJNIAccessors, true, \ | |
1183 "Use optimized versions of Get<Primitive>Field") \ | |
1184 \ | |
1185 product(bool, EagerXrunInit, false, \ | |
1186 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
1187 " but not all -Xrun libraries may support the state of the VM at this time") \ | |
1188 \ | |
1189 product(bool, PreserveAllAnnotations, false, \ | |
1190 "Preserve RuntimeInvisibleAnnotations as well as RuntimeVisibleAnnotations") \ | |
1191 \ | |
1192 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
1193 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
1194 \ | |
1195 product(bool, LazyBootClassLoader, true, \ | |
1196 "Enable/disable lazy opening of boot class path entries") \ | |
1197 \ | |
405 | 1198 product(bool, UseXMMForArrayCopy, false, \ |
1199 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
1200 \ | |
0 | 1201 product(intx, FieldsAllocationStyle, 1, \ |
1366
b9d85fcdf743
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kvn
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1365
diff
changeset
|
1202 "0 - type based with oops first, 1 - with oops last, " \ |
b9d85fcdf743
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kvn
parents:
1365
diff
changeset
|
1203 "2 - oops in super and sub classes are together") \ |
0 | 1204 \ |
1205 product(bool, CompactFields, true, \ | |
1206 "Allocate nonstatic fields in gaps between previous fields") \ | |
1207 \ | |
7587 | 1208 notproduct(bool, PrintFieldLayout, false, \ |
1209 "Print field layout for each class") \ | |
1210 \ | |
1211 product(intx, ContendedPaddingWidth, 128, \ | |
1212 "How many bytes to pad the fields/classes marked @Contended with")\ | |
1213 \ | |
1214 product(bool, EnableContended, true, \ | |
1215 "Enable @Contended annotation support") \ | |
1216 \ | |
1217 product(bool, RestrictContended, true, \ | |
1218 "Restrict @Contended to trusted classes") \ | |
1219 \ | |
0 | 1220 product(bool, UseBiasedLocking, true, \ |
1221 "Enable biased locking in JVM") \ | |
1222 \ | |
1223 product(intx, BiasedLockingStartupDelay, 4000, \ | |
1224 "Number of milliseconds to wait before enabling biased locking") \ | |
1225 \ | |
1226 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
1227 "Print statistics of biased locking in JVM") \ | |
1228 \ | |
1229 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
1230 "Threshold of number of revocations per type to try to " \ | |
1231 "rebias all objects in the heap of that type") \ | |
1232 \ | |
1233 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
1234 "Threshold of number of revocations per type to permanently " \ | |
1235 "revoke biases of all objects in the heap of that type") \ | |
1236 \ | |
1237 product(intx, BiasedLockingDecayTime, 25000, \ | |
1238 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
1239 "type after previous bulk rebias") \ | |
1240 \ | |
1241 /* tracing */ \ | |
1242 \ | |
1243 notproduct(bool, TraceRuntimeCalls, false, \ | |
1244 "Trace run-time calls") \ | |
1245 \ | |
1246 develop(bool, TraceJNICalls, false, \ | |
1247 "Trace JNI calls") \ | |
1248 \ | |
1249 notproduct(bool, TraceJVMCalls, false, \ | |
1250 "Trace JVM calls") \ | |
1251 \ | |
370
885fe0f95828
6744783: HotSpot segfaults if given -XX options with an empty string argument
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parents:
325
diff
changeset
|
1252 product(ccstr, TraceJVMTI, NULL, \ |
0 | 1253 "Trace flags for JVMTI functions and events") \ |
1254 \ | |
1255 /* This option can change an EMCP method into an obsolete method. */ \ | |
1256 /* This can affect tests that except specific methods to be EMCP. */ \ | |
1257 /* This option should be used with caution. */ \ | |
1258 product(bool, StressLdcRewrite, false, \ | |
1259 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
1260 \ | |
1261 product(intx, TraceRedefineClasses, 0, \ | |
1262 "Trace level for JVMTI RedefineClasses") \ | |
1263 \ | |
1574 | 1264 develop(bool, StressMethodComparator, false, \ |
1265 "run the MethodComparator on all loaded methods") \ | |
1266 \ | |
0 | 1267 /* change to false by default sometime after Mustang */ \ |
1268 product(bool, VerifyMergedCPBytecodes, true, \ | |
1269 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
1270 \ | |
1271 develop(bool, TraceJNIHandleAllocation, false, \ | |
1272 "Trace allocation/deallocation of JNI handle blocks") \ | |
1273 \ | |
1274 develop(bool, TraceThreadEvents, false, \ | |
1275 "Trace all thread events") \ | |
1276 \ | |
1277 develop(bool, TraceBytecodes, false, \ | |
1278 "Trace bytecode execution") \ | |
1279 \ | |
1280 develop(bool, TraceClassInitialization, false, \ | |
1281 "Trace class initialization") \ | |
1282 \ | |
1283 develop(bool, TraceExceptions, false, \ | |
1284 "Trace exceptions") \ | |
1285 \ | |
1286 develop(bool, TraceICs, false, \ | |
1287 "Trace inline cache changes") \ | |
1288 \ | |
1289 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
1290 "Trace method invocation counter overflow") \ | |
1291 \ | |
1292 develop(bool, TraceInlineCacheClearing, false, \ | |
1293 "Trace clearing of inline caches in nmethods") \ | |
1294 \ | |
1295 develop(bool, TraceDependencies, false, \ | |
1296 "Trace dependencies") \ | |
1297 \ | |
1298 develop(bool, VerifyDependencies, trueInDebug, \ | |
1299 "Exercise and verify the compilation dependency mechanism") \ | |
1300 \ | |
1301 develop(bool, TraceNewOopMapGeneration, false, \ | |
1302 "Trace OopMapGeneration") \ | |
1303 \ | |
1304 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
1305 "Trace OopMapGeneration: print detailed cell states") \ | |
1306 \ | |
1307 develop(bool, TimeOopMap, false, \ | |
1308 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
1309 \ | |
1310 develop(bool, TimeOopMap2, false, \ | |
1311 "Time calls to GenerateOopMap::compute_map() individually") \ | |
1312 \ | |
1313 develop(bool, TraceMonitorMismatch, false, \ | |
1314 "Trace monitor matching failures during OopMapGeneration") \ | |
1315 \ | |
1316 develop(bool, TraceOopMapRewrites, false, \ | |
1317 "Trace rewritting of method oops during oop map generation") \ | |
1318 \ | |
1319 develop(bool, TraceSafepoint, false, \ | |
1320 "Trace safepoint operations") \ | |
1321 \ | |
1322 develop(bool, TraceICBuffer, false, \ | |
1323 "Trace usage of IC buffer") \ | |
1324 \ | |
1325 develop(bool, TraceCompiledIC, false, \ | |
1326 "Trace changes of compiled IC") \ | |
1327 \ | |
1328 notproduct(bool, TraceZapDeadLocals, false, \ | |
1329 "Trace zapping dead locals") \ | |
1330 \ | |
1331 develop(bool, TraceStartupTime, false, \ | |
1332 "Trace setup time") \ | |
1333 \ | |
1334 develop(bool, TraceProtectionDomainVerification, false, \ | |
1335 "Trace protection domain verifcation") \ | |
1336 \ | |
1337 develop(bool, TraceClearedExceptions, false, \ | |
1338 "Prints when an exception is forcibly cleared") \ | |
1339 \ | |
1340 product(bool, TraceClassResolution, false, \ | |
1341 "Trace all constant pool resolutions (for debugging)") \ | |
1342 \ | |
1343 product(bool, TraceBiasedLocking, false, \ | |
1344 "Trace biased locking in JVM") \ | |
1345 \ | |
1346 product(bool, TraceMonitorInflation, false, \ | |
1347 "Trace monitor inflation in JVM") \ | |
1348 \ | |
1349 /* gc */ \ | |
1350 \ | |
1351 product(bool, UseSerialGC, false, \ | |
342
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diff
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|
1352 "Use the serial garbage collector") \ |
37f87013dfd8
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142
diff
changeset
|
1353 \ |
1193
c81fa70144aa
6919980: G1: remove +UseG1GC from under experimental options (second attempt)
tonyp
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1179
diff
changeset
|
1354 product(bool, UseG1GC, false, \ |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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142
diff
changeset
|
1355 "Use the Garbage-First garbage collector") \ |
0 | 1356 \ |
1357 product(bool, UseParallelGC, false, \ | |
1358 "Use the Parallel Scavenge garbage collector") \ | |
1359 \ | |
1360 product(bool, UseParallelOldGC, false, \ | |
1361 "Use the Parallel Old garbage collector") \ | |
1362 \ | |
1363 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
1364 "How often should we maximally compact the heap (not allowing " \ | |
1365 "any dead space)") \ | |
1366 \ | |
1367 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
1368 "The collection count for the first maximum compaction") \ | |
1369 \ | |
1370 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
1371 "In the Parallel Old garbage collector maximum compaction for " \ | |
1372 "a system GC") \ | |
1373 \ | |
1374 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
1375 "The mean used by the par compact dead wood" \ | |
1376 "limiter (a number between 0-100).") \ | |
1377 \ | |
1378 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
1379 "The standard deviation used by the par compact dead wood" \ | |
1380 "limiter (a number between 0-100).") \ | |
1381 \ | |
1382 product(uintx, ParallelGCThreads, 0, \ | |
1383 "Number of parallel threads parallel gc will use") \ | |
1384 \ | |
4095
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
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4067
diff
changeset
|
1385 product(bool, UseDynamicNumberOfGCThreads, false, \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1386 "Dynamically choose the number of parallel threads " \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1387 "parallel gc will use") \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1388 \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
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4067
diff
changeset
|
1389 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1390 "Force dynamic selection of the number of" \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1391 "parallel threads parallel gc will use to aid debugging") \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1392 \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
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4067
diff
changeset
|
1393 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1394 "Size of heap (bytes) per GC thread used in calculating the " \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1395 "number of GC threads") \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1396 \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
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4067
diff
changeset
|
1397 product(bool, TraceDynamicGCThreads, false, \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
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parents:
4067
diff
changeset
|
1398 "Trace the dynamic GC thread usage") \ |
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4067
diff
changeset
|
1399 \ |
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
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481
diff
changeset
|
1400 develop(bool, ParallelOldGCSplitALot, false, \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1401 "Provoke splitting (copying data from a young gen space to" \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1402 "multiple destination spaces)") \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1403 \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1404 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
481
diff
changeset
|
1405 "How often to provoke splitting a young gen space") \ |
0 | 1406 \ |
1284 | 1407 product(uintx, ConcGCThreads, 0, \ |
1408 "Number of threads concurrent gc will use") \ | |
342
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|
1409 \ |
0 | 1410 product(uintx, YoungPLABSize, 4096, \ |
1411 "Size of young gen promotion labs (in HeapWords)") \ | |
1412 \ | |
1413 product(uintx, OldPLABSize, 1024, \ | |
1414 "Size of old gen promotion labs (in HeapWords)") \ | |
1415 \ | |
1416 product(uintx, GCTaskTimeStampEntries, 200, \ | |
1417 "Number of time stamp entries per gc worker thread") \ | |
1418 \ | |
1419 product(bool, AlwaysTenure, false, \ | |
1420 "Always tenure objects in eden. (ParallelGC only)") \ | |
1421 \ | |
1422 product(bool, NeverTenure, false, \ | |
1064 | 1423 "Never tenure objects in eden, May tenure on overflow " \ |
1424 "(ParallelGC only)") \ | |
0 | 1425 \ |
1426 product(bool, ScavengeBeforeFullGC, true, \ | |
1064 | 1427 "Scavenge youngest generation before each full GC, " \ |
1428 "used with UseParallelGC") \ | |
0 | 1429 \ |
1430 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
1431 "Allow scavenges to occur when to_space contains objects.") \ | |
1432 \ | |
1433 product(bool, UseConcMarkSweepGC, false, \ | |
1434 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
1435 \ | |
1436 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
1437 "A System.gc() request invokes a concurrent collection;" \ | |
1438 " (effective only when UseConcMarkSweepGC)") \ | |
1439 \ | |
1440 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
1064 | 1441 "A System.gc() request invokes a concurrent collection and " \ |
1442 "also unloads classes during such a concurrent gc cycle " \ | |
1443 "(effective only when UseConcMarkSweepGC)") \ | |
0 | 1444 \ |
1520
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents:
1518
diff
changeset
|
1445 product(bool, GCLockerInvokesConcurrent, false, \ |
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents:
1518
diff
changeset
|
1446 "The exit of a JNI CS necessitating a scavenge also" \ |
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents:
1518
diff
changeset
|
1447 " kicks off a bkgrd concurrent collection") \ |
bb843ebc7c55
6919638: CMS: ExplicitGCInvokesConcurrent misinteracts with gc locker
ysr
parents:
1518
diff
changeset
|
1448 \ |
1991
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
1972
diff
changeset
|
1449 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
1972
diff
changeset
|
1450 "How much the GC can expand the eden by while the GC locker " \ |
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
1972
diff
changeset
|
1451 "is active (as a percentage)") \ |
016a3628c885
6994056: G1: when GC locker is active, extend the Eden instead of allocating into the old gen
tonyp
parents:
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diff
changeset
|
1452 \ |
8853
2e093b564241
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
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parents:
8706
diff
changeset
|
1453 diagnostic(intx, GCLockerRetryAllocationCount, 2, \ |
2e093b564241
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
8706
diff
changeset
|
1454 "Number of times to retry allocations when" \ |
2e093b564241
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
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8706
diff
changeset
|
1455 " blocked by the GC locker") \ |
2e093b564241
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
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diff
changeset
|
1456 \ |
0 | 1457 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
1458 "Use Adaptive Free Lists in the CMS generation") \ | |
1459 \ | |
1460 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
1461 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
1462 \ | |
1463 develop(bool, RotateCMSCollectionTypes, false, \ | |
1464 "Rotate the CMS collections among concurrent and STW") \ | |
1465 \ | |
1466 product(bool, UseCMSBestFit, true, \ | |
1467 "Use CMS best fit allocation strategy") \ | |
1468 \ | |
1469 product(bool, UseCMSCollectionPassing, true, \ | |
1470 "Use passing of collection from background to foreground") \ | |
1471 \ | |
1472 product(bool, UseParNewGC, false, \ | |
1473 "Use parallel threads in the new generation.") \ | |
1474 \ | |
1475 product(bool, ParallelGCVerbose, false, \ | |
1476 "Verbose output for parallel GC.") \ | |
1477 \ | |
10287
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changeset
|
1478 product(uintx, ParallelGCBufferWastePct, 10, \ |
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diff
changeset
|
1479 "Wasted fraction of parallel allocation buffer.") \ |
0 | 1480 \ |
3357
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6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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3325
diff
changeset
|
1481 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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3325
diff
changeset
|
1482 "Retain parallel allocation buffers across scavenges; " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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diff
changeset
|
1483 " -- disabled because this currently conflicts with " \ |
fc2b798ab316
6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
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3325
diff
changeset
|
1484 " parallel card scanning under certain conditions ") \ |
0 | 1485 \ |
10287
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changeset
|
1486 product(uintx, TargetPLABWastePct, 10, \ |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
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diff
changeset
|
1487 "Target wasted space in last buffer as percent of overall " \ |
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changeset
|
1488 "allocation") \ |
0 | 1489 \ |
1490 product(uintx, PLABWeight, 75, \ | |
1491 "Percentage (0-100) used to weight the current sample when" \ | |
1492 "computing exponentially decaying average for ResizePLAB.") \ | |
1493 \ | |
1494 product(bool, ResizePLAB, true, \ | |
1495 "Dynamically resize (survivor space) promotion labs") \ | |
1496 \ | |
1497 product(bool, PrintPLAB, false, \ | |
1498 "Print (survivor space) promotion labs sizing decisions") \ | |
1499 \ | |
1500 product(intx, ParGCArrayScanChunk, 50, \ | |
1501 "Scan a subset and push remainder, if array is bigger than this") \ | |
1502 \ | |
695 | 1503 product(bool, ParGCUseLocalOverflow, false, \ |
1504 "Instead of a global overflow list, use local overflow stacks") \ | |
1505 \ | |
679
cea947c8a988
6819891: ParNew: Fix work queue overflow code to deal correctly with +UseCompressedOops
ysr
parents:
647
diff
changeset
|
1506 product(bool, ParGCTrimOverflow, true, \ |
695 | 1507 "Eagerly trim the local overflow lists (when ParGCUseLocalOverflow") \ |
679
cea947c8a988
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647
diff
changeset
|
1508 \ |
534 | 1509 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
1510 "Whether we should simulate work queue overflow in ParNew") \ | |
1511 \ | |
1512 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
1064 | 1513 "An `interval' counter that determines how frequently " \ |
1514 "we simulate overflow; a smaller number increases frequency") \ | |
534 | 1515 \ |
1516 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
0 | 1517 "The desired number of objects to claim from the overflow list") \ |
1518 \ | |
4728
441e946dc1af
7121618: Change type of number of GC workers to unsigned int.
jmasa
parents:
4125
diff
changeset
|
1519 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
3357
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1520 "The number of strides per worker thread that we divide up the " \ |
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1521 "card table scanning work into") \ |
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1522 \ |
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1523 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
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1524 "The number of cards in each chunk of the parallel chunks used " \ |
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1525 "during card table scanning") \ |
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1526 \ |
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1527 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
0 | 1528 "Number of blocks to attempt to claim when refilling CMS LAB for "\ |
1529 "parallel GC.") \ | |
1530 \ | |
1145
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1531 product(uintx, OldPLABWeight, 50, \ |
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1532 "Percentage (0-100) used to weight the current sample when" \ |
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1533 "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \ |
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1534 \ |
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1535 product(bool, ResizeOldPLAB, true, \ |
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1536 "Dynamically resize (old gen) promotion labs") \ |
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1537 \ |
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1538 product(bool, PrintOldPLAB, false, \ |
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1539 "Print (old gen) promotion labs sizing decisions") \ |
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1540 \ |
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1541 product(uintx, CMSOldPLABMin, 16, \ |
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1542 "Min size of CMS gen promotion lab caches per worker per blksize")\ |
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1543 \ |
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1544 product(uintx, CMSOldPLABMax, 1024, \ |
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1545 "Max size of CMS gen promotion lab caches per worker per blksize")\ |
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1546 \ |
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1547 product(uintx, CMSOldPLABNumRefills, 4, \ |
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1548 "Nominal number of refills of CMS gen promotion lab cache" \ |
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1549 " per worker per block size") \ |
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1550 \ |
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1551 product(bool, CMSOldPLABResizeQuicker, false, \ |
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1552 "Whether to react on-the-fly during a scavenge to a sudden" \ |
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1553 " change in block demand rate") \ |
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1554 \ |
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1555 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
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1556 "The tolerance of the phase-change detector for on-the-fly" \ |
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1557 " PLAB resizing during a scavenge") \ |
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1558 \ |
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1559 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
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1560 "The gain in the feedback loop for on-the-fly PLAB resizing" \ |
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1561 " during a scavenge") \ |
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1562 \ |
0 | 1563 product(bool, AlwaysPreTouch, false, \ |
1564 "It forces all freshly committed pages to be pre-touched.") \ | |
1565 \ | |
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1566 product_pd(uintx, CMSYoungGenPerWorker, \ |
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1567 "The maximum size of young gen chosen by default per GC worker " \ |
1064 | 1568 "thread available") \ |
0 | 1569 \ |
1570 product(bool, CMSIncrementalMode, false, \ | |
1571 "Whether CMS GC should operate in \"incremental\" mode") \ | |
1572 \ | |
1573 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
1574 "CMS incremental mode duty cycle (a percentage, 0-100). If" \ | |
1575 "CMSIncrementalPacing is enabled, then this is just the initial" \ | |
1576 "value") \ | |
1577 \ | |
1578 product(bool, CMSIncrementalPacing, true, \ | |
1579 "Whether the CMS incremental mode duty cycle should be " \ | |
1580 "automatically adjusted") \ | |
1581 \ | |
1582 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
1064 | 1583 "Lower bound on the duty cycle when CMSIncrementalPacing is " \ |
1584 "enabled (a percentage, 0-100)") \ | |
0 | 1585 \ |
1586 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
1064 | 1587 "Percentage (0-100) used to add conservatism when computing the " \ |
1588 "duty cycle") \ | |
0 | 1589 \ |
1590 product(uintx, CMSIncrementalOffset, 0, \ | |
1591 "Percentage (0-100) by which the CMS incremental mode duty cycle" \ | |
1064 | 1592 " is shifted to the right within the period between young GCs") \ |
0 | 1593 \ |
1145
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1594 product(uintx, CMSExpAvgFactor, 50, \ |
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1595 "Percentage (0-100) used to weight the current sample when" \ |
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1596 "computing exponential averages for CMS statistics.") \ |
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1597 \ |
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1598 product(uintx, CMS_FLSWeight, 75, \ |
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1599 "Percentage (0-100) used to weight the current sample when" \ |
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1600 "computing exponentially decating averages for CMS FLS statistics.") \ |
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1601 \ |
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1602 product(uintx, CMS_FLSPadding, 1, \ |
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1603 "The multiple of deviation from mean to use for buffering" \ |
0 | 1604 "against volatility in free list demand.") \ |
1605 \ | |
1606 product(uintx, FLSCoalescePolicy, 2, \ | |
1607 "CMS: Aggression level for coalescing, increasing from 0 to 4") \ | |
1608 \ | |
1145
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1609 product(bool, FLSAlwaysCoalesceLarge, false, \ |
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1610 "CMS: Larger free blocks are always available for coalescing") \ |
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1611 \ |
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1612 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
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1613 "CMS: the smaller the percentage the greater the coalition force")\ |
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1614 \ |
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1615 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
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1616 "CMS: the factor by which to inflate estimated demand of small" \ |
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1617 " block sizes to prevent coalescing with an adjoining block") \ |
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1618 \ |
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1619 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
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1620 "CMS: the factor by which to inflate estimated demand of large" \ |
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|
1621 " block sizes to prevent coalescing with an adjoining block") \ |
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1622 \ |
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1623 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
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1624 "CMS: the factor by which to inflate estimated demand of small" \ |
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1625 " block sizes to prevent splitting to supply demand for smaller" \ |
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|
1626 " blocks") \ |
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|
1627 \ |
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1628 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
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1629 "CMS: the factor by which to inflate estimated demand of large" \ |
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|
1630 " block sizes to prevent splitting to supply demand for smaller" \ |
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|
1631 " blocks") \ |
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|
1632 \ |
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1633 product(bool, CMSExtrapolateSweep, false, \ |
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|
1634 "CMS: cushion for block demand during sweep") \ |
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1635 \ |
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1636 product(uintx, CMS_SweepWeight, 75, \ |
1064 | 1637 "Percentage (0-100) used to weight the current sample when " \ |
1638 "computing exponentially decaying average for inter-sweep " \ | |
1639 "duration") \ | |
0 | 1640 \ |
1145
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1641 product(uintx, CMS_SweepPadding, 1, \ |
1064 | 1642 "The multiple of deviation from mean to use for buffering " \ |
0 | 1643 "against volatility in inter-sweep duration.") \ |
1644 \ | |
1645 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
1646 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
1064 | 1647 "duration exceeds this threhold in milliseconds") \ |
0 | 1648 \ |
1649 develop(bool, CMSTraceIncrementalMode, false, \ | |
1650 "Trace CMS incremental mode") \ | |
1651 \ | |
1652 develop(bool, CMSTraceIncrementalPacing, false, \ | |
1653 "Trace CMS incremental mode pacing computation") \ | |
1654 \ | |
1655 develop(bool, CMSTraceThreadState, false, \ | |
1656 "Trace the CMS thread state (enable the trace_state() method)") \ | |
1657 \ | |
7454
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1658 product(bool, CMSClassUnloadingEnabled, true, \ |
0 | 1659 "Whether class unloading enabled when using CMS GC") \ |
1660 \ | |
94
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1661 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
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diff
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|
1662 "When CMS class unloading is enabled, the maximum CMS cycle count"\ |
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diff
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|
1663 " for which classes may not be unloaded") \ |
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|
1664 \ |
0 | 1665 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
1666 "Compact when asked to collect CMS gen with clear_all_soft_refs") \ | |
1667 \ | |
1668 product(bool, UseCMSCompactAtFullCollection, true, \ | |
1669 "Use mark sweep compact at full collections") \ | |
1670 \ | |
1671 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
1672 "Number of CMS full collection done before compaction if > 0") \ | |
1673 \ | |
1674 develop(intx, CMSDictionaryChoice, 0, \ | |
1675 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
1676 \ | |
1677 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
6818 | 1678 "Replenish an indexed free list with this number of chunks") \ |
0 | 1679 \ |
1145
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1680 product(bool, CMSReplenishIntermediate, true, \ |
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1681 "Replenish all intermediate free-list caches") \ |
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1682 \ |
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1683 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
1777
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diff
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1684 "When satisfying batched demand, split blocks from the " \ |
1145
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1685 "IndexedFreeList whose size is a multiple of requested size") \ |
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1686 \ |
0 | 1687 product(bool, CMSLoopWarn, false, \ |
1688 "Warn in case of excessive CMS looping") \ | |
1689 \ | |
1690 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
1691 "Whether preserved marks should be restored early") \ | |
1692 \ | |
1284 | 1693 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
1694 "Size of marking stack") \ | |
1695 \ | |
1696 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
1697 "Max size of marking stack") \ | |
0 | 1698 \ |
1699 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
1700 "Whether we should simulate frequent marking stack / work queue" \ | |
1701 " overflow") \ | |
1702 \ | |
534 | 1703 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
1704 "An `interval' counter that determines how frequently" \ | |
0 | 1705 " we simulate overflow; a smaller number increases frequency") \ |
1706 \ | |
1707 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
1708 "(Temporary, subject to experimentation)" \ | |
1709 "Maximum number of abortable preclean iterations, if > 0") \ | |
1710 \ | |
1711 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
1712 "(Temporary, subject to experimentation)" \ | |
1713 "Maximum time in abortable preclean in ms") \ | |
1714 \ | |
1715 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
1716 "(Temporary, subject to experimentation)" \ | |
1717 "Nominal minimum work per abortable preclean iteration") \ | |
1718 \ | |
1887
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1719 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
0 | 1720 "(Temporary, subject to experimentation)" \ |
1721 " Time that we sleep between iterations when not given" \ | |
1722 " enough work per iteration") \ | |
1723 \ | |
1724 product(uintx, CMSRescanMultiple, 32, \ | |
1725 "Size (in cards) of CMS parallel rescan task") \ | |
1726 \ | |
1727 product(uintx, CMSConcMarkMultiple, 32, \ | |
1728 "Size (in cards) of CMS concurrent MT marking task") \ | |
1729 \ | |
1730 product(bool, CMSAbortSemantics, false, \ | |
1731 "Whether abort-on-overflow semantics is implemented") \ | |
1732 \ | |
11975 | 1733 product(bool, CMSParallelInitialMarkEnabled, true, \ |
1734 "Use the parallel initial mark.") \ | |
1735 \ | |
0 | 1736 product(bool, CMSParallelRemarkEnabled, true, \ |
1737 "Whether parallel remark enabled (only if ParNewGC)") \ | |
1738 \ | |
1739 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
1740 "Whether parallel remark of survivor space" \ | |
1741 " enabled (effective only if CMSParallelRemarkEnabled)") \ | |
1742 \ | |
1743 product(bool, CMSPLABRecordAlways, true, \ | |
1744 "Whether to always record survivor space PLAB bdries" \ | |
1745 " (effective only if CMSParallelSurvivorRemarkEnabled)") \ | |
1746 \ | |
11973
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1747 product(bool, CMSEdenChunksRecordAlways, true, \ |
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1748 "Whether to always record eden chunks used for " \ |
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1749 "the parallel initial mark or remark of eden" ) \ |
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|
1750 \ |
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1751 product(bool, CMSPrintEdenSurvivorChunks, false, \ |
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1752 "Print the eden and the survivor chunks used for the parallel " \ |
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1753 "initial mark or remark of the eden/survivor spaces") \ |
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1754 \ |
0 | 1755 product(bool, CMSConcurrentMTEnabled, true, \ |
1756 "Whether multi-threaded concurrent work enabled (if ParNewGC)") \ | |
1757 \ | |
1758 product(bool, CMSPrecleaningEnabled, true, \ | |
1759 "Whether concurrent precleaning enabled") \ | |
1760 \ | |
1761 product(uintx, CMSPrecleanIter, 3, \ | |
1762 "Maximum number of precleaning iteration passes") \ | |
1763 \ | |
1764 product(uintx, CMSPrecleanNumerator, 2, \ | |
1765 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1766 " ratio") \ | |
1767 \ | |
1768 product(uintx, CMSPrecleanDenominator, 3, \ | |
1769 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence" \ | |
1770 " ratio") \ | |
1771 \ | |
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1772 product(bool, CMSPrecleanRefLists1, true, \ |
0 | 1773 "Preclean ref lists during (initial) preclean phase") \ |
1774 \ | |
1775 product(bool, CMSPrecleanRefLists2, false, \ | |
1776 "Preclean ref lists during abortable preclean phase") \ | |
1777 \ | |
1778 product(bool, CMSPrecleanSurvivors1, false, \ | |
1779 "Preclean survivors during (initial) preclean phase") \ | |
1780 \ | |
1781 product(bool, CMSPrecleanSurvivors2, true, \ | |
1782 "Preclean survivors during abortable preclean phase") \ | |
1783 \ | |
1784 product(uintx, CMSPrecleanThreshold, 1000, \ | |
1785 "Don't re-iterate if #dirty cards less than this") \ | |
1786 \ | |
1787 product(bool, CMSCleanOnEnter, true, \ | |
1788 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
1789 \ | |
1790 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
1791 "Choose variant (1,2) of verification following remark") \ | |
1792 \ | |
1793 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
1794 "If Eden used is below this value, don't try to schedule remark") \ | |
1795 \ | |
1796 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
1797 "The Eden occupancy % at which to try and schedule remark pause") \ | |
1798 \ | |
1799 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
1800 "Start sampling Eden top at least before yg occupancy reaches" \ | |
1801 " 1/<ratio> of the size at which we plan to schedule remark") \ | |
1802 \ | |
1803 product(uintx, CMSSamplingGrain, 16*K, \ | |
1804 "The minimum distance between eden samples for CMS (see above)") \ | |
1805 \ | |
1806 product(bool, CMSScavengeBeforeRemark, false, \ | |
1807 "Attempt scavenge before the CMS remark step") \ | |
1808 \ | |
1809 develop(bool, CMSTraceSweeper, false, \ | |
1810 "Trace some actions of the CMS sweeper") \ | |
1811 \ | |
1812 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
1813 "Don't drain below this size per parallel worker/thief") \ | |
1814 \ | |
1887
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1815 manageable(intx, CMSWaitDuration, 2000, \ |
0 | 1816 "Time in milliseconds that CMS thread waits for young GC") \ |
1817 \ | |
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1818 develop(uintx, CMSCheckInterval, 1000, \ |
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1819 "Interval in milliseconds that CMS thread checks if it " \ |
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1820 "should start a collection cycle") \ |
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1821 \ |
0 | 1822 product(bool, CMSYield, true, \ |
1823 "Yield between steps of concurrent mark & sweep") \ | |
1824 \ | |
1825 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
1826 "Bitmap operations should process at most this many bits" \ | |
1827 "between yields") \ | |
1828 \ | |
1145
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1829 product(bool, CMSDumpAtPromotionFailure, false, \ |
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1830 "Dump useful information about the state of the CMS old " \ |
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|
1831 " generation upon a promotion failure.") \ |
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|
1832 \ |
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1833 product(bool, CMSPrintChunksInDump, false, \ |
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|
1834 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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|
1835 " more detailed information about the free chunks.") \ |
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|
1836 \ |
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1837 product(bool, CMSPrintObjectsInDump, false, \ |
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|
1838 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1839 " more detailed information about the allocated objects.") \ |
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|
1840 \ |
0 | 1841 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
1842 "Verify that all refs across the FLS boundary " \ | |
1843 " are to valid objects") \ | |
1844 \ | |
1845 diagnostic(bool, FLSVerifyLists, false, \ | |
1846 "Do lots of (expensive) FreeListSpace verification") \ | |
1847 \ | |
1848 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
1849 "Do lots of (expensive) FLS index table verification") \ | |
1850 \ | |
1851 develop(bool, FLSVerifyDictionary, false, \ | |
1852 "Do lots of (expensive) FLS dictionary verification") \ | |
1853 \ | |
1854 develop(bool, VerifyBlockOffsetArray, false, \ | |
1855 "Do (expensive!) block offset array verification") \ | |
1856 \ | |
3321
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1857 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
0 | 1858 "Maintain _unallocated_block in BlockOffsetArray" \ |
1859 " (currently applicable only to CMS collector)") \ | |
1860 \ | |
1861 develop(bool, TraceCMSState, false, \ | |
1862 "Trace the state of the CMS collection") \ | |
1863 \ | |
1864 product(intx, RefDiscoveryPolicy, 0, \ | |
1865 "Whether reference-based(0) or referent-based(1)") \ | |
1866 \ | |
1867 product(bool, ParallelRefProcEnabled, false, \ | |
1868 "Enable parallel reference processing whenever possible") \ | |
1869 \ | |
1870 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
1871 "Enable balancing of reference processing queues") \ | |
1872 \ | |
8035 | 1873 product(uintx, CMSTriggerRatio, 80, \ |
0 | 1874 "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
1064 | 1875 "allocated before a CMS collection cycle commences") \ |
0 | 1876 \ |
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1877 product(uintx, CMSBootstrapOccupancy, 50, \ |
0 | 1878 "Percentage CMS generation occupancy at which to " \ |
1064 | 1879 "initiate CMS collection for bootstrapping collection stats") \ |
0 | 1880 \ |
1881 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
1882 "Percentage CMS generation occupancy to start a CMS collection " \ | |
1064 | 1883 "cycle. A negative value means that CMSTriggerRatio is used") \ |
94
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1884 \ |
1283
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|
1885 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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|
1886 "Percentage of the (entire) heap occupancy to start a " \ |
8034
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1887 "concurrent GC cycle. It is used by GCs that trigger a " \ |
1283
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1888 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1889 "not just one of the generations (e.g., G1). A value of 0 " \ |
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1890 "denotes 'do constant GC cycles'.") \ |
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|
1891 \ |
0 | 1892 product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
1893 "Only use occupancy as a crierion for starting a CMS collection") \ | |
1894 \ | |
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1895 product(uintx, CMSIsTooFullPercentage, 98, \ |
1064 | 1896 "An absolute ceiling above which CMS will always consider the " \ |
7461
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1897 "unloading of classes when class unloading is enabled") \ |
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1898 \ |
0 | 1899 develop(bool, CMSTestInFreeList, false, \ |
1900 "Check if the coalesced range is already in the " \ | |
1064 | 1901 "free lists as claimed") \ |
0 | 1902 \ |
1903 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
1904 "Check that all the garbage collected was returned to the " \ | |
1905 "free lists.") \ | |
1906 \ | |
1907 notproduct(bool, ScavengeALot, false, \ | |
1908 "Force scavenge at every Nth exit from the runtime system " \ | |
1909 "(N=ScavengeALotInterval)") \ | |
1910 \ | |
1911 develop(bool, FullGCALot, false, \ | |
1912 "Force full gc at every Nth exit from the runtime system " \ | |
1913 "(N=FullGCALotInterval)") \ | |
1914 \ | |
1915 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
1916 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
1917 \ | |
1145
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1918 product(bool, PrintPromotionFailure, false, \ |
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|
1919 "Print additional diagnostic information following " \ |
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1920 " promotion failure") \ |
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1921 \ |
0 | 1922 notproduct(bool, PromotionFailureALot, false, \ |
1923 "Use promotion failure handling on every youngest generation " \ | |
1924 "collection") \ | |
1925 \ | |
1926 develop(uintx, PromotionFailureALotCount, 1000, \ | |
1927 "Number of promotion failures occurring at ParGCAllocBuffer" \ | |
1928 "refill attempts (ParNew) or promotion attempts " \ | |
1929 "(other young collectors) ") \ | |
1930 \ | |
1931 develop(uintx, PromotionFailureALotInterval, 5, \ | |
1932 "Total collections between promotion failures alot") \ | |
1933 \ | |
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1934 experimental(uintx, WorkStealingSleepMillis, 1, \ |
0 | 1935 "Sleep time when sleep is used for yields") \ |
1936 \ | |
2430 | 1937 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
0 | 1938 "Number of yields before a sleep is done during workstealing") \ |
1939 \ | |
1837
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1940 experimental(uintx, WorkStealingHardSpins, 4096, \ |
546
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1941 "Number of iterations in a spin loop between checks on " \ |
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1942 "time out of hard spin") \ |
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1943 \ |
1837
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1944 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
546
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1945 "Ratio of hard spins to calls to yield") \ |
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|
1946 \ |
1311
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|
1947 develop(uintx, ObjArrayMarkingStride, 512, \ |
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1948 "Number of ObjArray elements to push onto the marking stack" \ |
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1949 "before pushing a continuation entry") \ |
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1950 \ |
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1951 develop(bool, MetadataAllocationFailALot, false, \ |
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1952 "Fail metadata allocations at intervals controlled by " \ |
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1953 "MetadataAllocationFailALotInterval") \ |
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1954 \ |
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1955 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ |
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1956 "metadata allocation failure alot interval") \ |
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1957 \ |
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1958 develop(bool, MetaDataDeallocateALot, false, \ |
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1959 "Deallocation bunches of metadata at intervals controlled by " \ |
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1960 "MetaDataAllocateALotInterval") \ |
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1961 \ |
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1962 develop(uintx, MetaDataDeallocateALotInterval, 100, \ |
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1963 "Metadata deallocation alot interval") \ |
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|
1964 \ |
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1965 develop(bool, TraceMetadataChunkAllocation, false, \ |
7461
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1966 "Trace chunk metadata allocations") \ |
6725
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1967 \ |
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1968 product(bool, TraceMetadataHumongousAllocation, false, \ |
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1969 "Trace humongous metadata allocations") \ |
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1970 \ |
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1971 develop(bool, TraceMetavirtualspaceAllocation, false, \ |
7461
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1972 "Trace virtual space metadata allocations") \ |
6725
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1973 \ |
3779 | 1974 notproduct(bool, ExecuteInternalVMTests, false, \ |
1975 "Enable execution of internal VM tests.") \ | |
1976 \ | |
12110
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1977 notproduct(bool, VerboseInternalVMTests, false, \ |
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1978 "Turn on logging for internal VM tests.") \ |
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1979 \ |
0 | 1980 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
1981 \ | |
1982 product_pd(bool, ResizeTLAB, \ | |
1983 "Dynamically resize tlab size for threads") \ | |
1984 \ | |
1985 product(bool, ZeroTLAB, false, \ | |
1986 "Zero out the newly created TLAB") \ | |
1987 \ | |
342
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1988 product(bool, FastTLABRefill, true, \ |
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ysr
parents:
142
diff
changeset
|
1989 "Use fast TLAB refill code") \ |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
142
diff
changeset
|
1990 \ |
0 | 1991 product(bool, PrintTLAB, false, \ |
1992 "Print various TLAB related information") \ | |
1993 \ | |
1994 product(bool, TLABStats, true, \ | |
1995 "Print various TLAB related information") \ | |
1996 \ | |
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
1997 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
1998 "Enable LowMemoryProtection")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
1999 \ |
0 | 2000 product_pd(bool, NeverActAsServerClassMachine, \ |
2001 "Never act like a server-class machine") \ | |
2002 \ | |
2003 product(bool, AlwaysActAsServerClassMachine, false, \ | |
2004 "Always act like a server-class machine") \ | |
2005 \ | |
1064 | 2006 product_pd(uint64_t, MaxRAM, \ |
2007 "Real memory size (in bytes) used to set maximum heap size") \ | |
2008 \ | |
2009 product(uintx, ErgoHeapSizeLimit, 0, \ | |
2010 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
2011 "MaxRAM / MaxRAMFraction") \ | |
2012 \ | |
2013 product(uintx, MaxRAMFraction, 4, \ | |
2014 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
2015 "size") \ | |
0 | 2016 \ |
2017 product(uintx, DefaultMaxRAMFraction, 4, \ | |
1064 | 2018 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
2019 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
2020 \ | |
2021 product(uintx, MinRAMFraction, 2, \ | |
2022 "Minimum fraction (1/n) of real memory used for maxmimum heap " \ | |
2023 "size on systems with small physical memory size") \ | |
2024 \ | |
2025 product(uintx, InitialRAMFraction, 64, \ | |
2026 "Fraction (1/n) of real memory used for initial heap size") \ | |
0 | 2027 \ |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
2028 develop(uintx, MaxVirtMemFraction, 2, \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
2029 "Maximum fraction (1/n) of virtual memory used for ergonomically" \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
2030 "determining maximum heap size") \ |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8853
diff
changeset
|
2031 \ |
0 | 2032 product(bool, UseAutoGCSelectPolicy, false, \ |
2033 "Use automatic collection selection policy") \ | |
2034 \ | |
2035 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
2036 "Automatic GC selection pause threshhold in ms") \ | |
2037 \ | |
2038 product(bool, UseAdaptiveSizePolicy, true, \ | |
2039 "Use adaptive generation sizing policies") \ | |
2040 \ | |
2041 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
2042 "Use adaptive survivor sizing policies") \ | |
2043 \ | |
2044 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
2045 "Use adaptive young-old sizing policies at minor collections") \ | |
2046 \ | |
2047 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
2048 "Use adaptive young-old sizing policies at major collections") \ | |
2049 \ | |
2050 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
2051 "Use statistics from System.GC for adaptive size policy") \ | |
2052 \ | |
2053 product(bool, UseAdaptiveGCBoundary, false, \ | |
2054 "Allow young-old boundary to move") \ | |
2055 \ | |
2056 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
2057 "Trace young-old boundary moves") \ | |
2058 \ | |
2059 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
2060 "Resize the virtual spaces of the young or old generations") \ | |
2061 \ | |
2062 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
2063 "Policy for changeing generation size for throughput goals") \ | |
2064 \ | |
2065 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
2066 "Policy for changing generation size for pause goals") \ | |
2067 \ | |
2068 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
2069 "Adjust tenured generation to achive a minor pause goal") \ | |
2070 \ | |
2071 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
2072 "Adjust young generation to achive a major pause goal") \ | |
2073 \ | |
2074 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
2075 "Number of steps where heuristics is used before data is used") \ | |
2076 \ | |
2077 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
2078 "Number of collections before the adaptive sizing is started") \ | |
2079 \ | |
2080 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
2081 "Collection interval for printing information; zero means never") \ |
0 | 2082 \ |
2083 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
2084 "Use adaptive minimum footprint as a goal") \ | |
2085 \ | |
2086 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
2087 "Weight given to exponential resizing, between 0 and 100") \ | |
2088 \ | |
2089 product(uintx, AdaptiveTimeWeight, 25, \ | |
2090 "Weight given to time in adaptive policy, between 0 and 100") \ | |
2091 \ | |
2092 product(uintx, PausePadding, 1, \ | |
2093 "How much buffer to keep for pause time") \ | |
2094 \ | |
2095 product(uintx, PromotedPadding, 3, \ | |
2096 "How much buffer to keep for promotion failure") \ | |
2097 \ | |
2098 product(uintx, SurvivorPadding, 3, \ | |
2099 "How much buffer to keep for survivor overflow") \ | |
2100 \ | |
2101 product(uintx, ThresholdTolerance, 10, \ | |
2102 "Allowed collection cost difference between generations") \ | |
2103 \ | |
2104 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
1064 | 2105 "If collection costs are within margin, reduce both by full " \ |
2106 "delta") \ | |
0 | 2107 \ |
2108 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
2109 "Adaptive size percentage change in young generation") \ | |
2110 \ | |
2111 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
2112 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
2113 \ | |
2114 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
2115 "Decay factor to YoungedGenerationSizeSupplement") \ | |
2116 \ | |
2117 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
2118 "Adaptive size percentage change in tenured generation") \ | |
2119 \ | |
2120 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
2121 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
2122 \ | |
2123 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
2124 "Decay factor to TenuredGenerationSizeIncrement") \ | |
2125 \ | |
6818 | 2126 product(uintx, MaxGCPauseMillis, max_uintx, \ |
751 | 2127 "Adaptive size policy maximum GC pause time goal in msec, " \ |
2128 "or (G1 Only) the max. GC time per MMU time slice") \ | |
2129 \ | |
1610
79107c3a6bd5
6949307: G1: raise a vm error, do not core dump, if target pause time and target interval are inconsistent
tonyp
parents:
1589
diff
changeset
|
2130 product(uintx, GCPauseIntervalMillis, 0, \ |
751 | 2131 "Time slice for MMU specification") \ |
0 | 2132 \ |
2133 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
2134 "Adaptive size policy maximum GC minor pause time goal in msec") \ | |
2135 \ | |
2136 product(uintx, GCTimeRatio, 99, \ | |
2137 "Adaptive size policy application time to GC time ratio") \ | |
2138 \ | |
2139 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
2140 "Adaptive size scale down factor for shrinking") \ | |
2141 \ | |
2142 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
2143 "Adaptive size decays the major cost for long major intervals") \ | |
2144 \ | |
2145 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
2146 "Time scale over which major costs decay") \ | |
2147 \ | |
2148 product(uintx, MinSurvivorRatio, 3, \ | |
2149 "Minimum ratio of young generation/survivor space size") \ | |
2150 \ | |
2151 product(uintx, InitialSurvivorRatio, 8, \ | |
2152 "Initial ratio of eden/survivor space size") \ | |
2153 \ | |
2154 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
2155 "Estimate of footprint other than Java Heap") \ | |
2156 \ | |
2157 product(bool, UseGCOverheadLimit, true, \ | |
2158 "Use policy to limit of proportion of time spent in GC " \ | |
2159 "before an OutOfMemory error is thrown") \ | |
2160 \ | |
2161 product(uintx, GCTimeLimit, 98, \ | |
2162 "Limit of proportion of time spent in GC before an OutOfMemory" \ | |
2163 "error is thrown (used with GCHeapFreeLimit)") \ | |
2164 \ | |
2165 product(uintx, GCHeapFreeLimit, 2, \ | |
2166 "Minimum percentage of free space after a full GC before an " \ | |
2167 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
2168 \ | |
2169 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
2170 "Number of consecutive collections before gc time limit fires") \ | |
2171 \ | |
2172 product(bool, PrintAdaptiveSizePolicy, false, \ | |
2173 "Print information about AdaptiveSizePolicy") \ | |
2174 \ | |
2175 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
2176 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
2177 \ | |
2178 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
2179 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
2180 \ | |
2181 product(intx, PrefetchFieldsAhead, -1, \ | |
2182 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
2183 \ | |
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9073
diff
changeset
|
2184 diagnostic(bool, VerifySilently, false, \ |
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9073
diff
changeset
|
2185 "Don't print print the verification progress") \ |
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9073
diff
changeset
|
2186 \ |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2187 diagnostic(bool, VerifyDuringStartup, false, \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2188 "Verify memory system before executing any Java code " \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2189 "during VM initialization") \ |
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8880
diff
changeset
|
2190 \ |
0 | 2191 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
2192 "Verify system before exiting") \ | |
2193 \ | |
2194 diagnostic(bool, VerifyBeforeGC, false, \ | |
2195 "Verify memory system before GC") \ | |
2196 \ | |
2197 diagnostic(bool, VerifyAfterGC, false, \ | |
2198 "Verify memory system after GC") \ | |
2199 \ | |
2200 diagnostic(bool, VerifyDuringGC, false, \ | |
2201 "Verify memory system during GC (between phases)") \ | |
2202 \ | |
390 | 2203 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
2204 "Enable parallel memory system verification") \ | |
2205 \ | |
1166 | 2206 diagnostic(bool, DeferInitialCardMark, false, \ |
2207 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
2208 "may arise from new_pre_store_barrier") \ | |
2209 \ | |
0 | 2210 diagnostic(bool, VerifyRememberedSets, false, \ |
2211 "Verify GC remembered sets") \ | |
2212 \ | |
2213 diagnostic(bool, VerifyObjectStartArray, true, \ | |
2214 "Verify GC object start array if verify before/after") \ | |
2215 \ | |
2216 product(bool, DisableExplicitGC, false, \ | |
2217 "Tells whether calling System.gc() does a full GC") \ | |
2218 \ | |
2219 notproduct(bool, CheckMemoryInitialization, false, \ | |
2220 "Checks memory initialization") \ | |
2221 \ | |
2222 product(bool, CollectGen0First, false, \ | |
2223 "Collect youngest generation before each full GC") \ | |
2224 \ | |
2225 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
2226 "Bind CMS Thread to CPU if possible") \ | |
2227 \ | |
2228 diagnostic(uintx, CPUForCMSThread, 0, \ | |
2229 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
2230 \ | |
2231 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
2232 "Bind GCTaskThreads to CPUs if possible") \ | |
2233 \ | |
2234 product(bool, UseGCTaskAffinity, false, \ | |
2235 "Use worker affinity when asking for GCTasks") \ | |
2236 \ | |
2237 product(uintx, ProcessDistributionStride, 4, \ | |
2238 "Stride through processors when distributing processes") \ | |
2239 \ | |
2240 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
2241 "number of times the coordinator GC thread will sleep while " \ | |
2242 "yielding before giving up and resuming GC") \ | |
2243 \ | |
2244 product(uintx, CMSYieldSleepCount, 0, \ | |
2245 "number of times a GC thread (minus the coordinator) " \ | |
2246 "will sleep while yielding before giving up and resuming GC") \ | |
2247 \ | |
2248 /* gc tracing */ \ | |
2249 manageable(bool, PrintGC, false, \ | |
2250 "Print message at garbage collect") \ | |
2251 \ | |
2252 manageable(bool, PrintGCDetails, false, \ | |
2253 "Print more details at garbage collect") \ | |
2254 \ | |
2255 manageable(bool, PrintGCDateStamps, false, \ | |
2256 "Print date stamps at garbage collect") \ | |
2257 \ | |
2258 manageable(bool, PrintGCTimeStamps, false, \ | |
2259 "Print timestamps at garbage collect") \ | |
2260 \ | |
2261 product(bool, PrintGCTaskTimeStamps, false, \ | |
2262 "Print timestamps for individual gc worker thread tasks") \ | |
2263 \ | |
2264 develop(intx, ConcGCYieldTimeout, 0, \ | |
2265 "If non-zero, assert that GC threads yield within this # of ms.") \ | |
2266 \ | |
2267 notproduct(bool, TraceMarkSweep, false, \ | |
2268 "Trace mark sweep") \ | |
2269 \ | |
2270 product(bool, PrintReferenceGC, false, \ | |
2271 "Print times spent handling reference objects during GC " \ | |
2272 " (enabled only when PrintGCDetails)") \ | |
2273 \ | |
2274 develop(bool, TraceReferenceGC, false, \ | |
2275 "Trace handling of soft/weak/final/phantom references") \ | |
2276 \ | |
2277 develop(bool, TraceFinalizerRegistration, false, \ | |
2278 "Trace registration of final references") \ | |
2279 \ | |
2280 notproduct(bool, TraceScavenge, false, \ | |
2281 "Trace scavenge") \ | |
2282 \ | |
2283 product_rw(bool, TraceClassLoading, false, \ | |
2284 "Trace all classes loaded") \ | |
2285 \ | |
2286 product(bool, TraceClassLoadingPreorder, false, \ | |
2287 "Trace all classes loaded in order referenced (not loaded)") \ | |
2288 \ | |
2289 product_rw(bool, TraceClassUnloading, false, \ | |
2290 "Trace unloading of classes") \ | |
2291 \ | |
2292 product_rw(bool, TraceLoaderConstraints, false, \ | |
2293 "Trace loader constraints") \ | |
2294 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
2295 develop(bool, TraceClassLoaderData, false, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
2296 "Trace class loader loader_data lifetime") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
2297 \ |
7446
e51c9860cf66
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents:
7428
diff
changeset
|
2298 product(uintx, InitialBootClassLoaderMetaspaceSize, \ |
e51c9860cf66
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents:
7428
diff
changeset
|
2299 NOT_LP64(2200*K) LP64_ONLY(4*M), \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
2300 "Initial size of the boot class loader data metaspace") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
2301 \ |
0 | 2302 product(bool, TraceGen0Time, false, \ |
2303 "Trace accumulated time for Gen 0 collection") \ | |
2304 \ | |
2305 product(bool, TraceGen1Time, false, \ | |
2306 "Trace accumulated time for Gen 1 collection") \ | |
2307 \ | |
2308 product(bool, PrintTenuringDistribution, false, \ | |
2309 "Print tenuring age information") \ | |
2310 \ | |
2311 product_rw(bool, PrintHeapAtGC, false, \ | |
2312 "Print heap layout before and after each GC") \ | |
2313 \ | |
838
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2314 product_rw(bool, PrintHeapAtGCExtended, false, \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2315 "Prints extended information about the layout of the heap " \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2316 "when -XX:+PrintHeapAtGC is set") \ |
0316eac49d5a
6855834: G1: minimize the output when -XX:+PrintHeapAtGC is set
tonyp
parents:
779
diff
changeset
|
2317 \ |
0 | 2318 product(bool, PrintHeapAtSIGBREAK, true, \ |
2319 "Print heap layout in response to SIGBREAK") \ | |
2320 \ | |
615
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2321 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2322 "Print a class histogram before any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2323 \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2324 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2325 "Print a class histogram after any major stop-world GC") \ |
c6c601a0f2d6
6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC
ysr
parents:
570
diff
changeset
|
2326 \ |
0 | 2327 manageable(bool, PrintClassHistogram, false, \ |
2328 "Print a histogram of class instances") \ | |
2329 \ | |
2330 develop(bool, TraceWorkGang, false, \ | |
2331 "Trace activities of work gangs") \ | |
2332 \ | |
2333 product(bool, TraceParallelOldGCTasks, false, \ | |
2334 "Trace multithreaded GC activity") \ | |
2335 \ | |
2336 develop(bool, TraceBlockOffsetTable, false, \ | |
2337 "Print BlockOffsetTable maps") \ | |
2338 \ | |
2339 develop(bool, TraceCardTableModRefBS, false, \ | |
2340 "Print CardTableModRefBS maps") \ | |
2341 \ | |
2342 develop(bool, TraceGCTaskManager, false, \ | |
2343 "Trace actions of the GC task manager") \ | |
2344 \ | |
2345 develop(bool, TraceGCTaskQueue, false, \ | |
2346 "Trace actions of the GC task queues") \ | |
2347 \ | |
6818 | 2348 diagnostic(bool, TraceGCTaskThread, false, \ |
0 | 2349 "Trace actions of the GC task threads") \ |
2350 \ | |
2351 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
2352 "Print the time taken by each parallel old gc phase." \ | |
2353 "PrintGCDetails must also be enabled.") \ | |
2354 \ | |
2355 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
2356 "Trace parallel old gc marking phase") \ | |
2357 \ | |
2358 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
2359 "Trace parallel old gc summary phase") \ | |
2360 \ | |
2361 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
2362 "Trace parallel old gc compaction phase") \ | |
2363 \ | |
2364 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
2365 "Trace parallel old gc dense prefix computation") \ | |
2366 \ | |
2367 develop(bool, IgnoreLibthreadGPFault, false, \ | |
2368 "Suppress workaround for libthread GP fault") \ | |
2369 \ | |
139
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2370 product(bool, PrintJNIGCStalls, false, \ |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2371 "Print diagnostic message when GC is stalled" \ |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2372 "by JNI critical section") \ |
c0492d52d55b
6539517: CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen
apetrusenko
parents:
95
diff
changeset
|
2373 \ |
10405 | 2374 experimental(double, ObjectCountCutOffPercent, 0.5, \ |
2375 "The percentage of the used heap that the instances of a class " \ | |
2376 "must occupy for the class to generate a trace event.") \ | |
2377 \ | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2378 /* GC log rotation setting */ \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2379 \ |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3745
diff
changeset
|
2380 product(bool, UseGCLogFileRotation, false, \ |
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|
2381 "Prevent large gclog file for long running app. " \ |
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3745
diff
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|
2382 "Requires -Xloggc:<filename>") \ |
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6941923: RFE: Handling large log files produced by long running Java Applications
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diff
changeset
|
2383 \ |
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3745
diff
changeset
|
2384 product(uintx, NumberOfGCLogFiles, 0, \ |
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diff
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|
2385 "Number of gclog files in rotation, " \ |
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diff
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|
2386 "Default: 0, no rotation") \ |
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3745
diff
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|
2387 \ |
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3745
diff
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|
2388 product(uintx, GCLogFileSize, 0, \ |
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diff
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|
2389 "GC log file size, Default: 0 bytes, no rotation " \ |
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diff
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|
2390 "Only valid with UseGCLogFileRotation") \ |
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|
2391 \ |
0 | 2392 /* JVMTI heap profiling */ \ |
2393 \ | |
2394 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
2395 "Trace JVMTI object tagging calls") \ | |
2396 \ | |
2397 diagnostic(bool, VerifyBeforeIteration, false, \ | |
2398 "Verify memory system before JVMTI iteration") \ | |
2399 \ | |
2400 /* compiler interface */ \ | |
2401 \ | |
2402 develop(bool, CIPrintCompilerName, false, \ | |
2403 "when CIPrint is active, print the name of the active compiler") \ | |
2404 \ | |
2405 develop(bool, CIPrintCompileQueue, false, \ | |
2406 "display the contents of the compile queue whenever a " \ | |
2407 "compilation is enqueued") \ | |
2408 \ | |
2409 develop(bool, CIPrintRequests, false, \ | |
2410 "display every request for compilation") \ | |
2411 \ | |
2412 product(bool, CITime, false, \ | |
2413 "collect timing information for compilation") \ | |
2414 \ | |
2415 develop(bool, CITimeEach, false, \ | |
2416 "display timing information after each successful compilation") \ | |
2417 \ | |
6843 | 2418 develop(bool, CICountOSR, false, \ |
0 | 2419 "use a separate counter when assigning ids to osr compilations") \ |
2420 \ | |
2421 develop(bool, CICompileNatives, true, \ | |
2422 "compile native methods if supported by the compiler") \ | |
2423 \ | |
2424 develop_pd(bool, CICompileOSR, \ | |
2425 "compile on stack replacement methods if supported by the " \ | |
2426 "compiler") \ | |
2427 \ | |
2428 develop(bool, CIPrintMethodCodes, false, \ | |
2429 "print method bytecodes of the compiled code") \ | |
2430 \ | |
2431 develop(bool, CIPrintTypeFlow, false, \ | |
2432 "print the results of ciTypeFlow analysis") \ | |
2433 \ | |
2434 develop(bool, CITraceTypeFlow, false, \ | |
2435 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
2436 \ | |
2403 | 2437 develop(intx, OSROnlyBCI, -1, \ |
2438 "OSR only at this bci. Negative values mean exclude that bci") \ | |
2439 \ | |
0 | 2440 /* compiler */ \ |
2441 \ | |
2442 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
2443 "Number of compiler threads to run") \ | |
2444 \ | |
2445 product(intx, CompilationPolicyChoice, 0, \ | |
2446 "which compilation policy (0/1)") \ | |
2447 \ | |
2448 develop(bool, UseStackBanging, true, \ | |
2449 "use stack banging for stack overflow checks (required for " \ | |
2450 "proper StackOverflow handling; disable only to measure cost " \ | |
2451 "of stackbanging)") \ | |
2452 \ | |
2453 develop(bool, UseStrictFP, true, \ | |
2454 "use strict fp if modifier strictfp is set") \ | |
2455 \ | |
2456 develop(bool, GenerateSynchronizationCode, true, \ | |
2457 "generate locking/unlocking code for synchronized methods and " \ | |
2458 "monitors") \ | |
2459 \ | |
2460 develop(bool, GenerateCompilerNullChecks, true, \ | |
2461 "Generate explicit null checks for loads/stores/calls") \ | |
2462 \ | |
2463 develop(bool, GenerateRangeChecks, true, \ | |
2464 "Generate range checks for array accesses") \ | |
2465 \ | |
2466 develop_pd(bool, ImplicitNullChecks, \ | |
2467 "generate code for implicit null checks") \ | |
2468 \ | |
2469 product(bool, PrintSafepointStatistics, false, \ | |
2470 "print statistics about safepoint synchronization") \ | |
2471 \ | |
2472 product(intx, PrintSafepointStatisticsCount, 300, \ | |
2473 "total number of safepoint statistics collected " \ | |
2474 "before printing them out") \ | |
2475 \ | |
2476 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
2477 "print safepoint statistics only when safepoint takes" \ | |
2478 " more than PrintSafepointSatisticsTimeout in millis") \ | |
2479 \ | |
1321
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2480 product(bool, TraceSafepointCleanupTime, false, \ |
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|
2481 "print the break down of clean up tasks performed during" \ |
0f6600cee529
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diff
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|
2482 " safepoint") \ |
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|
2483 \ |
0 | 2484 product(bool, Inline, true, \ |
2485 "enable inlining") \ | |
2486 \ | |
2487 product(bool, ClipInlining, true, \ | |
2488 "clip inlining if aggregate method exceeds DesiredMethodLimit") \ | |
2489 \ | |
2490 develop(bool, UseCHA, true, \ | |
2491 "enable CHA") \ | |
2492 \ | |
2493 product(bool, UseTypeProfile, true, \ | |
2494 "Check interpreter profile for historically monomorphic calls") \ | |
2495 \ | |
2496 notproduct(bool, TimeCompiler, false, \ | |
2497 "time the compiler") \ | |
2498 \ | |
2499 diagnostic(bool, PrintInlining, false, \ | |
2500 "prints inlining optimizations") \ | |
2501 \ | |
643
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|
2502 product(bool, UsePopCountInstruction, false, \ |
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6378821: bitCount() should use POPC on SPARC processors and AMD+10h
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diff
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|
2503 "Use population count instruction") \ |
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|
2504 \ |
0 | 2505 develop(bool, EagerInitialization, false, \ |
2506 "Eagerly initialize classes if possible") \ | |
2507 \ | |
2508 develop(bool, TraceMethodReplacement, false, \ | |
2509 "Print when methods are replaced do to recompilation") \ | |
2510 \ | |
2511 develop(bool, PrintMethodFlushing, false, \ | |
2512 "print the nmethods being flushed") \ | |
2513 \ | |
2514 develop(bool, UseRelocIndex, false, \ | |
2515 "use an index to speed random access to relocations") \ | |
2516 \ | |
2517 develop(bool, StressCodeBuffers, false, \ | |
2518 "Exercise code buffer expansion and other rare state changes") \ | |
2519 \ | |
2520 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
2521 "Generate extra debugging info for non-safepoints in nmethods") \ | |
2522 \ | |
4066 | 2523 product(bool, PrintVMOptions, false, \ |
1150 | 2524 "Print flags that appeared on the command line") \ |
0 | 2525 \ |
564 | 2526 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
2527 "Ignore unrecognized VM options") \ | |
2528 \ | |
1150 | 2529 product(bool, PrintCommandLineFlags, false, \ |
2530 "Print flags specified on command line or set by ergonomics") \ | |
2531 \ | |
2532 product(bool, PrintFlagsInitial, false, \ | |
2533 "Print all VM flags before argument processing and exit VM") \ | |
2534 \ | |
2535 product(bool, PrintFlagsFinal, false, \ | |
2536 "Print all VM flags after argument and ergonomic processing") \ | |
2537 \ | |
1768
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1749
diff
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|
2538 notproduct(bool, PrintFlagsWithComments, false, \ |
6ee479178066
6979444: add command line option to print command line flags descriptions
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1749
diff
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|
2539 "Print all VM flags with default values and descriptions and exit")\ |
6ee479178066
6979444: add command line option to print command line flags descriptions
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1749
diff
changeset
|
2540 \ |
0 | 2541 diagnostic(bool, SerializeVMOutput, true, \ |
12257
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vlivanov
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12190
diff
changeset
|
2542 "Use a mutex to serialize output to tty and LogFile") \ |
0 | 2543 \ |
2544 diagnostic(bool, DisplayVMOutput, true, \ | |
2545 "Display all VM output on the tty, independently of LogVMOutput") \ | |
2546 \ | |
12257
01b268b3080a
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vlivanov
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12190
diff
changeset
|
2547 diagnostic(bool, LogVMOutput, false, \ |
01b268b3080a
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parents:
12190
diff
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|
2548 "Save VM output to LogFile") \ |
0 | 2549 \ |
2550 diagnostic(ccstr, LogFile, NULL, \ | |
12257
01b268b3080a
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12190
diff
changeset
|
2551 "If LogVMOutput or LogCompilation is on, save VM output to " \ |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12190
diff
changeset
|
2552 "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)") \ |
0 | 2553 \ |
2554 product(ccstr, ErrorFile, NULL, \ | |
2555 "If an error occurs, save the error data to this file " \ | |
2556 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ | |
2557 \ | |
2558 product(bool, DisplayVMOutputToStderr, false, \ | |
2559 "If DisplayVMOutput is true, display all VM output to stderr") \ | |
2560 \ | |
2561 product(bool, DisplayVMOutputToStdout, false, \ | |
2562 "If DisplayVMOutput is true, display all VM output to stdout") \ | |
2563 \ | |
2564 product(bool, UseHeavyMonitors, false, \ | |
2565 "use heavyweight instead of lightweight Java monitors") \ | |
2566 \ | |
6162 | 2567 product(bool, PrintStringTableStatistics, false, \ |
2568 "print statistics about the StringTable and SymbolTable") \ | |
2569 \ | |
12275
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12190
diff
changeset
|
2570 diagnostic(bool, VerifyStringTableAtExit, false, \ |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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diff
changeset
|
2571 "verify StringTable contents at exit") \ |
63147986a428
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diff
changeset
|
2572 \ |
0 | 2573 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
2574 "print histogram of the symbol table") \ | |
2575 \ | |
2576 notproduct(bool, ExitVMOnVerifyError, false, \ | |
2577 "standard exit from VM if bytecode verify error " \ | |
2578 "(only in debug mode)") \ | |
2579 \ | |
2580 notproduct(ccstr, AbortVMOnException, NULL, \ | |
2581 "Call fatal if this exception is thrown. Example: " \ | |
2582 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
2583 \ | |
1684
66c5dadb4d61
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kvn
parents:
1660
diff
changeset
|
2584 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
66c5dadb4d61
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1660
diff
changeset
|
2585 "Call fatal if the exception pointed by AbortVMOnException " \ |
66c5dadb4d61
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kvn
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1660
diff
changeset
|
2586 "has this message.") \ |
66c5dadb4d61
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1660
diff
changeset
|
2587 \ |
0 | 2588 develop(bool, DebugVtables, false, \ |
2589 "add debugging code to vtable dispatch") \ | |
2590 \ | |
2591 develop(bool, PrintVtables, false, \ | |
2592 "print vtables when printing klass") \ | |
2593 \ | |
2594 notproduct(bool, PrintVtableStats, false, \ | |
2595 "print vtables stats at end of run") \ | |
2596 \ | |
2597 develop(bool, TraceCreateZombies, false, \ | |
2598 "trace creation of zombie nmethods") \ | |
2599 \ | |
2600 notproduct(bool, IgnoreLockingAssertions, false, \ | |
2601 "disable locking assertions (for speed)") \ | |
2602 \ | |
2603 product(bool, RangeCheckElimination, true, \ | |
8860 | 2604 "Eliminate range checks") \ |
0 | 2605 \ |
2606 develop_pd(bool, UncommonNullCast, \ | |
2607 "track occurrences of null in casts; adjust compiler tactics") \ | |
2608 \ | |
2609 develop(bool, TypeProfileCasts, true, \ | |
2610 "treat casts like calls for purposes of type profiling") \ | |
2611 \ | |
2612 develop(bool, DelayCompilationDuringStartup, true, \ | |
2613 "Delay invoking the compiler until main application class is " \ | |
2614 "loaded") \ | |
2615 \ | |
2616 develop(bool, CompileTheWorld, false, \ | |
2617 "Compile all methods in all classes in bootstrap class path " \ | |
2618 "(stress test)") \ | |
2619 \ | |
2620 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
2621 "Preload all classes used by a class before start loading") \ | |
2622 \ | |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2623 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1179
diff
changeset
|
2624 "Force a safepoint every n compiles so sweeper can keep up") \ |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
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1179
diff
changeset
|
2625 \ |
0 | 2626 develop(bool, FillDelaySlots, true, \ |
2627 "Fill delay slots (on SPARC only)") \ | |
2628 \ | |
2629 develop(bool, TimeLivenessAnalysis, false, \ | |
2630 "Time computation of bytecode liveness analysis") \ | |
2631 \ | |
2632 develop(bool, TraceLivenessGen, false, \ | |
2633 "Trace the generation of liveness analysis information") \ | |
2634 \ | |
2635 notproduct(bool, TraceLivenessQuery, false, \ | |
2636 "Trace queries of liveness analysis information") \ | |
2637 \ | |
2638 notproduct(bool, CollectIndexSetStatistics, false, \ | |
2639 "Collect information about IndexSets") \ | |
2640 \ | |
2641 develop(bool, UseLoopSafepoints, true, \ | |
2642 "Generate Safepoint nodes in every loop") \ | |
2643 \ | |
2644 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
2645 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
2646 "Inline allocations larger than this in doublewords must go slow")\ | |
2647 \ | |
2648 product(bool, AggressiveOpts, false, \ | |
2649 "Enable aggressive optimizations - see arguments.cpp") \ | |
2650 \ | |
2651 /* statistics */ \ | |
2652 develop(bool, CountCompiledCalls, false, \ | |
2653 "counts method invocations") \ | |
2654 \ | |
2655 notproduct(bool, CountRuntimeCalls, false, \ | |
2656 "counts VM runtime calls") \ | |
2657 \ | |
2658 develop(bool, CountJNICalls, false, \ | |
2659 "counts jni method invocations") \ | |
2660 \ | |
2661 notproduct(bool, CountJVMCalls, false, \ | |
2662 "counts jvm method invocations") \ | |
2663 \ | |
2664 notproduct(bool, CountRemovableExceptions, false, \ | |
2665 "count exceptions that could be replaced by branches due to " \ | |
2666 "inlining") \ | |
2667 \ | |
2668 notproduct(bool, ICMissHistogram, false, \ | |
2669 "produce histogram of IC misses") \ | |
2670 \ | |
2671 notproduct(bool, PrintClassStatistics, false, \ | |
2672 "prints class statistics at end of run") \ | |
2673 \ | |
2674 notproduct(bool, PrintMethodStatistics, false, \ | |
2675 "prints method statistics at end of run") \ | |
2676 \ | |
2677 /* interpreter */ \ | |
2678 develop(bool, ClearInterpreterLocals, false, \ | |
2679 "Always clear local variables of interpreter activations upon " \ | |
2680 "entry") \ | |
2681 \ | |
2682 product_pd(bool, RewriteBytecodes, \ | |
2683 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
2684 \ | |
2685 product_pd(bool, RewriteFrequentPairs, \ | |
2686 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
2687 \ | |
100
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76
diff
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|
2688 diagnostic(bool, PrintInterpreter, false, \ |
0 | 2689 "Prints the generated interpreter code") \ |
2690 \ | |
2691 product(bool, UseInterpreter, true, \ | |
2692 "Use interpreter for non-compiled methods") \ | |
2693 \ | |
2694 develop(bool, UseFastSignatureHandlers, true, \ | |
2695 "Use fast signature handlers for native calls") \ | |
2696 \ | |
2697 product(bool, UseLoopCounter, true, \ | |
2698 "Increment invocation counter on backward branch") \ | |
2699 \ | |
2700 product(bool, UseFastEmptyMethods, true, \ | |
2701 "Use fast method entry code for empty methods") \ | |
2702 \ | |
2703 product(bool, UseFastAccessorMethods, true, \ | |
2704 "Use fast method entry code for accessor methods") \ | |
2705 \ | |
2706 product_pd(bool, UseOnStackReplacement, \ | |
2707 "Use on stack replacement, calls runtime if invoc. counter " \ | |
2708 "overflows in loop") \ | |
2709 \ | |
2710 notproduct(bool, TraceOnStackReplacement, false, \ | |
2711 "Trace on stack replacement") \ | |
2712 \ | |
2713 product_pd(bool, PreferInterpreterNativeStubs, \ | |
2714 "Use always interpreter stubs for native methods invoked via " \ | |
2715 "interpreter") \ | |
2716 \ | |
2717 develop(bool, CountBytecodes, false, \ | |
2718 "Count number of bytecodes executed") \ | |
2719 \ | |
2720 develop(bool, PrintBytecodeHistogram, false, \ | |
2721 "Print histogram of the executed bytecodes") \ | |
2722 \ | |
2723 develop(bool, PrintBytecodePairHistogram, false, \ | |
2724 "Print histogram of the executed bytecode pairs") \ | |
2725 \ | |
100
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76
diff
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|
2726 diagnostic(bool, PrintSignatureHandlers, false, \ |
0 | 2727 "Print code generated for native method signature handlers") \ |
2728 \ | |
2729 develop(bool, VerifyOops, false, \ | |
2730 "Do plausibility checks for oops") \ | |
2731 \ | |
2732 develop(bool, CheckUnhandledOops, false, \ | |
2733 "Check for unhandled oops in VM code") \ | |
2734 \ | |
2735 develop(bool, VerifyJNIFields, trueInDebug, \ | |
2736 "Verify jfieldIDs for instance fields") \ | |
2737 \ | |
2738 notproduct(bool, VerifyJNIEnvThread, false, \ | |
2739 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
2740 "from JNI") \ | |
2741 \ | |
2742 develop(bool, VerifyFPU, false, \ | |
2743 "Verify FPU state (check for NaN's, etc.)") \ | |
2744 \ | |
2745 develop(bool, VerifyThread, false, \ | |
2746 "Watch the thread register for corruption (SPARC only)") \ | |
2747 \ | |
2748 develop(bool, VerifyActivationFrameSize, false, \ | |
2749 "Verify that activation frame didn't become smaller than its " \ | |
2750 "minimal size") \ | |
2751 \ | |
2752 develop(bool, TraceFrequencyInlining, false, \ | |
2753 "Trace frequency based inlining") \ | |
2754 \ | |
2755 develop_pd(bool, InlineIntrinsics, \ | |
2756 "Inline intrinsics that can be statically resolved") \ | |
2757 \ | |
2758 product_pd(bool, ProfileInterpreter, \ | |
2759 "Profile at the bytecode level during interpretation") \ | |
2760 \ | |
2761 develop_pd(bool, ProfileTraps, \ | |
2762 "Profile deoptimization traps at the bytecode level") \ | |
2763 \ | |
2764 product(intx, ProfileMaturityPercentage, 20, \ | |
2765 "number of method invocations/branches (expressed as % of " \ | |
2766 "CompileThreshold) before using the method's profile") \ | |
2767 \ | |
2768 develop(bool, PrintMethodData, false, \ | |
2769 "Print the results of +ProfileInterpreter at end of run") \ | |
2770 \ | |
2771 develop(bool, VerifyDataPointer, trueInDebug, \ | |
2772 "Verify the method data pointer during interpreter profiling") \ | |
2773 \ | |
2774 develop(bool, VerifyCompiledCode, false, \ | |
2775 "Include miscellaneous runtime verifications in nmethod code; " \ | |
1064 | 2776 "default off because it disturbs nmethod size heuristics") \ |
0 | 2777 \ |
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1064
diff
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|
2778 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
547f81740344
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1064
diff
changeset
|
2779 "Manually make GC thread crash then dump java stack trace; " \ |
547f81740344
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changeset
|
2780 "Test only") \ |
0 | 2781 \ |
2782 /* compilation */ \ | |
2783 product(bool, UseCompiler, true, \ | |
2784 "use compilation") \ | |
2785 \ | |
2786 develop(bool, TraceCompilationPolicy, false, \ | |
2787 "Trace compilation policy") \ | |
2788 \ | |
2789 develop(bool, TimeCompilationPolicy, false, \ | |
2790 "Time the compilation policy") \ | |
2791 \ | |
2792 product(bool, UseCounterDecay, true, \ | |
2793 "adjust recompilation counters") \ | |
2794 \ | |
2795 develop(intx, CounterHalfLifeTime, 30, \ | |
2796 "half-life time of invocation counters (in secs)") \ | |
2797 \ | |
2798 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
2799 "Min. ms. between invocation of CounterDecay") \ | |
2800 \ | |
2801 product(bool, AlwaysCompileLoopMethods, false, \ | |
2802 "when using recompilation, never interpret methods " \ | |
2803 "containing loops") \ | |
2804 \ | |
2805 product(bool, DontCompileHugeMethods, true, \ | |
2806 "don't compile methods > HugeMethodLimit") \ | |
2807 \ | |
2808 /* Bytecode escape analysis estimation. */ \ | |
2809 product(bool, EstimateArgEscape, true, \ | |
2810 "Analyze bytecodes to estimate escape state of arguments") \ | |
2811 \ | |
2812 product(intx, BCEATraceLevel, 0, \ | |
2813 "How much tracing to do of bytecode escape analysis estimates") \ | |
2814 \ | |
2815 product(intx, MaxBCEAEstimateLevel, 5, \ | |
2816 "Maximum number of nested calls that are analyzed by BC EA.") \ | |
2817 \ | |
2818 product(intx, MaxBCEAEstimateSize, 150, \ | |
2819 "Maximum bytecode size of a method to be analyzed by BC EA.") \ | |
2820 \ | |
2821 product(intx, AllocatePrefetchStyle, 1, \ | |
2822 "0 = no prefetch, " \ | |
2823 "1 = prefetch instructions for each allocation, " \ | |
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2824 "2 = use TLAB watermark to gate allocation prefetch, " \ |
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2825 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
0 | 2826 \ |
2827 product(intx, AllocatePrefetchDistance, -1, \ | |
2828 "Distance to prefetch ahead of allocation pointer") \ | |
2829 \ | |
3854 | 2830 product(intx, AllocatePrefetchLines, 3, \ |
2831 "Number of lines to prefetch ahead of array allocation pointer") \ | |
2832 \ | |
2833 product(intx, AllocateInstancePrefetchLines, 1, \ | |
2834 "Number of lines to prefetch ahead of instance allocation pointer") \ | |
0 | 2835 \ |
2836 product(intx, AllocatePrefetchStepSize, 16, \ | |
2837 "Step size in bytes of sequential prefetch instructions") \ | |
2838 \ | |
2839 product(intx, AllocatePrefetchInstr, 0, \ | |
2840 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
2841 \ | |
2842 /* deoptimization */ \ | |
2843 develop(bool, TraceDeoptimization, false, \ | |
2844 "Trace deoptimization") \ | |
2845 \ | |
2846 develop(bool, DebugDeoptimization, false, \ | |
2847 "Tracing various information while debugging deoptimization") \ | |
2848 \ | |
2849 product(intx, SelfDestructTimer, 0, \ | |
2850 "Will cause VM to terminate after a given time (in minutes) " \ | |
2851 "(0 means off)") \ | |
2852 \ | |
2853 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
2854 "Max. no. of lines in the stack trace for Java exceptions " \ | |
2855 "(0 means all)") \ | |
2856 \ | |
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
2857 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
0 | 2858 "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
|
2859 "(0 means none)")) \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2860 \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2861 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2862 "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
|
2863 "(0 means none)")) \ |
0 | 2864 \ |
2865 product(intx, SafepointTimeoutDelay, 10000, \ | |
2866 "Delay in milliseconds for option SafepointTimeout") \ | |
2867 \ | |
6818 | 2868 product(intx, NmethodSweepFraction, 16, \ |
0 | 2869 "Number of invocations of sweeper to cover all nmethods") \ |
2870 \ | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2871 product(intx, NmethodSweepCheckInterval, 5, \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2872 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2873 \ |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2874 product(intx, NmethodSweepActivity, 10, \ |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2875 "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
|
2876 "result in more aggressive sweeping") \ |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2877 \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2878 notproduct(bool, LogSweeper, false, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2879 "Keep a ring buffer of sweeper activity") \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2880 \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2881 notproduct(intx, SweeperLogEntries, 1024, \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2882 "Number of records in the ring buffer of sweeper activity") \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2883 \ |
0 | 2884 notproduct(intx, MemProfilingInterval, 500, \ |
2885 "Time between each invocation of the MemProfiler") \ | |
2886 \ | |
2887 develop(intx, MallocCatchPtr, -1, \ | |
2888 "Hit breakpoint when mallocing/freeing this pointer") \ | |
2889 \ | |
2890 notproduct(intx, AssertRepeat, 1, \ | |
2891 "number of times to evaluate expression in assert " \ | |
2892 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
2893 \ | |
2894 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
2895 "List of assertions (file:line) to muzzle") \ | |
2896 \ | |
2897 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
2898 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
2899 "is used") \ | |
2900 \ | |
2901 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
2902 "Threshold for total handle allocation when " \ | |
2903 "+TraceHandleAllocation is used") \ | |
2904 \ | |
2905 develop(intx, StackPrintLimit, 100, \ | |
2906 "number of stack frames to print in VM-level stack dump") \ | |
2907 \ | |
2908 notproduct(intx, MaxElementPrintSize, 256, \ | |
2909 "maximum number of elements to print") \ | |
2910 \ | |
2911 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
2912 "maximum number of subklasses to print when printing klass") \ | |
2913 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2914 product(intx, MaxInlineLevel, 9, \ |
0 | 2915 "maximum number of nested calls that are inlined") \ |
2916 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2917 product(intx, MaxRecursiveInlineLevel, 1, \ |
0 | 2918 "maximum number of nested recursive calls that are inlined") \ |
2919 \ | |
675 | 2920 product_pd(intx, InlineSmallCode, \ |
0 | 2921 "Only inline already compiled methods if their code size is " \ |
2922 "less than this") \ | |
2923 \ | |
2924 product(intx, MaxInlineSize, 35, \ | |
2925 "maximum bytecode size of a method to be inlined") \ | |
2926 \ | |
2927 product_pd(intx, FreqInlineSize, \ | |
2928 "maximum bytecode size of a frequent method to be inlined") \ | |
2929 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2930 product(intx, MaxTrivialSize, 6, \ |
0 | 2931 "maximum bytecode size of a trivial method to be inlined") \ |
2932 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2933 product(intx, MinInliningThreshold, 250, \ |
0 | 2934 "min. invocation count a method needs to have to be inlined") \ |
2935 \ | |
2936 develop(intx, MethodHistogramCutoff, 100, \ | |
2937 "cutoff value for method invoc. histogram (+CountCalls)") \ | |
2938 \ | |
2939 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
2940 "# of interpreted methods to show in profile") \ | |
2941 \ | |
2942 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
2943 "# of compiled methods to show in profile") \ | |
2944 \ | |
2945 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
2946 "# of stub methods to show in profile") \ | |
2947 \ | |
2948 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
2949 "# of runtime stub nodes to show in profile") \ | |
2950 \ | |
2951 product(intx, ProfileIntervalsTicks, 100, \ | |
2952 "# of ticks between printing of interval profile " \ | |
2953 "(+ProfileIntervals)") \ | |
2954 \ | |
2955 notproduct(intx, ScavengeALotInterval, 1, \ | |
2956 "Interval between which scavenge will occur with +ScavengeALot") \ | |
2957 \ | |
2958 notproduct(intx, FullGCALotInterval, 1, \ | |
2959 "Interval between which full gc will occur with +FullGCALot") \ | |
2960 \ | |
2961 notproduct(intx, FullGCALotStart, 0, \ | |
2962 "For which invocation to start FullGCAlot") \ | |
2963 \ | |
2964 notproduct(intx, FullGCALotDummies, 32*K, \ | |
2965 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
2966 "to move") \ | |
2967 \ | |
2968 develop(intx, DontYieldALotInterval, 10, \ | |
2969 "Interval between which yields will be dropped (milliseconds)") \ | |
2970 \ | |
2971 develop(intx, MinSleepInterval, 1, \ | |
2972 "Minimum sleep() interval (milliseconds) when " \ | |
2973 "ConvertSleepToYield is off (used for SOLARIS)") \ | |
2974 \ | |
2975 develop(intx, ProfilerPCTickThreshold, 15, \ | |
2976 "Number of ticks in a PC buckets to be a hotspot") \ | |
2977 \ | |
2978 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
2979 "Number of exits until DeoptimizeALot kicks in") \ | |
2980 \ | |
2981 notproduct(intx, ZombieALotInterval, 5, \ | |
2982 "Number of exits until ZombieALot kicks in") \ | |
2983 \ | |
2984 develop(bool, StressNonEntrant, false, \ | |
2985 "Mark nmethods non-entrant at registration") \ | |
2986 \ | |
2987 diagnostic(intx, MallocVerifyInterval, 0, \ | |
2988 "if non-zero, verify C heap after every N calls to " \ | |
2989 "malloc/realloc/free") \ | |
2990 \ | |
2991 diagnostic(intx, MallocVerifyStart, 0, \ | |
2992 "if non-zero, start verifying C heap after Nth call to " \ | |
2993 "malloc/realloc/free") \ | |
2994 \ | |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2995 diagnostic(uintx, MallocMaxTestWords, 0, \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2996 "if non-zero, max # of Words that malloc/realloc can allocate " \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2997 "(for testing only)") \ |
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
2998 \ |
6818 | 2999 product(intx, TypeProfileWidth, 2, \ |
0 | 3000 "number of receiver types to record in call/cast profile") \ |
3001 \ | |
3002 develop(intx, BciProfileWidth, 2, \ | |
3003 "number of return bci's to record in ret profile") \ | |
3004 \ | |
3005 product(intx, PerMethodRecompilationCutoff, 400, \ | |
3006 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
3007 \ | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
3008 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
0 | 3009 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
3010 \ | |
3011 product(intx, PerMethodTrapLimit, 100, \ | |
3012 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
3013 \ | |
3014 product(intx, PerBytecodeTrapLimit, 4, \ | |
3015 "Limit on traps (of one kind) at a particular BCI") \ | |
3016 \ | |
3017 develop(intx, InlineFrequencyRatio, 20, \ | |
3018 "Ratio of call site execution to caller method invocation") \ | |
3019 \ | |
3020 develop_pd(intx, InlineFrequencyCount, \ | |
3021 "Count of call site execution necessary to trigger frequent " \ | |
3022 "inlining") \ | |
3023 \ | |
3024 develop(intx, InlineThrowCount, 50, \ | |
3025 "Force inlining of interpreted methods that throw this often") \ | |
3026 \ | |
3027 develop(intx, InlineThrowMaxSize, 200, \ | |
3028 "Force inlining of throwing methods smaller than this") \ | |
3029 \ | |
3030 develop(intx, ProfilerNodeSize, 1024, \ | |
3031 "Size in K to allocate for the Profile Nodes of each thread") \ | |
3032 \ | |
3033 product_pd(intx, PreInflateSpin, \ | |
3034 "Number of times to spin wait before inflation") \ | |
3035 \ | |
3036 /* gc parameters */ \ | |
1064 | 3037 product(uintx, InitialHeapSize, 0, \ |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10208
diff
changeset
|
3038 "Initial heap size (in bytes); zero means use ergonomics") \ |
1064 | 3039 \ |
3040 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
3041 "Maximum heap size (in bytes)") \ | |
3042 \ | |
3043 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
3044 "Initial tenured generation size (in bytes)") \ | |
3045 \ | |
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
3046 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
1064 | 3047 "Initial new generation size (in bytes)") \ |
0 | 3048 \ |
3049 product(uintx, MaxNewSize, max_uintx, \ | |
1064 | 3050 "Maximum new generation size (in bytes), max_uintx means set " \ |
3051 "ergonomically") \ | |
0 | 3052 \ |
3053 product(uintx, PretenureSizeThreshold, 0, \ | |
1064 | 3054 "Maximum size in bytes of objects allocated in DefNew " \ |
3055 "generation; zero means no maximum") \ | |
3056 \ | |
3057 product(uintx, TLABSize, 0, \ | |
3058 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
0 | 3059 \ |
3060 product(uintx, MinTLABSize, 2*K, \ | |
3061 "Minimum allowed TLAB size (in bytes)") \ | |
3062 \ | |
3063 product(uintx, TLABAllocationWeight, 35, \ | |
3064 "Allocation averaging weight") \ | |
3065 \ | |
3066 product(uintx, TLABWasteTargetPercent, 1, \ | |
3067 "Percentage of Eden that can be wasted") \ | |
3068 \ | |
3069 product(uintx, TLABRefillWasteFraction, 64, \ | |
3070 "Max TLAB waste at a refill (internal fragmentation)") \ | |
3071 \ | |
3072 product(uintx, TLABWasteIncrement, 4, \ | |
3073 "Increment allowed waste at slow allocation") \ | |
3074 \ | |
8035 | 3075 product(uintx, SurvivorRatio, 8, \ |
0 | 3076 "Ratio of eden/survivor space size") \ |
3077 \ | |
8035 | 3078 product(uintx, NewRatio, 2, \ |
0 | 3079 "Ratio of new/old generation sizes") \ |
3080 \ | |
3081 product_pd(uintx, NewSizeThreadIncrease, \ | |
3082 "Additional size added to desired new generation size per " \ | |
3083 "non-daemon thread (in bytes)") \ | |
3084 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3085 product_pd(uintx, MetaspaceSize, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3086 "Initial size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3087 \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3088 product(uintx, MaxMetaspaceSize, max_uintx, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3089 "Maximum size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3090 \ |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3091 product(uintx, CompressedClassSpaceSize, 1*G, \ |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3092 "Maximum size of class area in Metaspace when compressed " \ |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3093 "class pointers are used") \ |
0 | 3094 \ |
3095 product(uintx, MinHeapFreeRatio, 40, \ | |
3096 "Min percentage of heap free after GC to avoid expansion") \ | |
3097 \ | |
3098 product(uintx, MaxHeapFreeRatio, 70, \ | |
3099 "Max percentage of heap free after GC to avoid shrinking") \ | |
3100 \ | |
3101 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
3102 "Number of milliseconds per MB of free space in the heap") \ | |
3103 \ | |
3104 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
3105 "Min change in heap space due to GC (in bytes)") \ | |
3106 \ | |
6818 | 3107 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3108 "Min expansion of Metaspace (in bytes)") \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3109 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3110 product(uintx, MinMetaspaceFreeRatio, 40, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3111 "Min percentage of Metaspace free after GC to avoid expansion") \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3112 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3113 product(uintx, MaxMetaspaceFreeRatio, 70, \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3114 "Max percentage of Metaspace free after GC to avoid shrinking") \ |
0 | 3115 \ |
6818 | 3116 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3117 "Max expansion of Metaspace without full GC (in bytes)") \ |
0 | 3118 \ |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3119 product(uintx, QueuedAllocationWarningCount, 0, \ |
0 | 3120 "Number of times an allocation that queues behind a GC " \ |
3121 "will retry before printing a warning") \ | |
3122 \ | |
3123 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
3124 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
3125 \ | |
3126 diagnostic(intx, VerifyGCLevel, 0, \ | |
3127 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
3128 \ | |
6818 | 3129 product(uintx, MaxTenuringThreshold, 15, \ |
0 | 3130 "Maximum value for tenuring threshold") \ |
3131 \ | |
6818 | 3132 product(uintx, InitialTenuringThreshold, 7, \ |
0 | 3133 "Initial value for tenuring threshold") \ |
3134 \ | |
8035 | 3135 product(uintx, TargetSurvivorRatio, 50, \ |
0 | 3136 "Desired percentage of survivor space used after scavenge") \ |
3137 \ | |
438 | 3138 product(uintx, MarkSweepDeadRatio, 5, \ |
0 | 3139 "Percentage (0-100) of the old gen allowed as dead wood." \ |
3140 "Serial mark sweep treats this as both the min and max value." \ | |
3141 "CMS uses this value only if it falls back to mark sweep." \ | |
3142 "Par compact uses a variable scale based on the density of the" \ | |
3143 "generation and treats this as the max value when the heap is" \ | |
3144 "either completely full or completely empty. Par compact also" \ | |
3145 "has a smaller default value; see arguments.cpp.") \ | |
3146 \ | |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3147 product(uintx, MarkSweepAlwaysCompactCount, 4, \ |
0 | 3148 "How often should we fully compact the heap (ignoring the dead " \ |
3149 "space parameters)") \ | |
3150 \ | |
3151 product(intx, PrintCMSStatistics, 0, \ | |
3152 "Statistics for CMS") \ | |
3153 \ | |
3154 product(bool, PrintCMSInitiationStatistics, false, \ | |
3155 "Statistics for initiating a CMS collection") \ | |
3156 \ | |
3157 product(intx, PrintFLSStatistics, 0, \ | |
3158 "Statistics for CMS' FreeListSpace") \ | |
3159 \ | |
3160 product(intx, PrintFLSCensus, 0, \ | |
3161 "Census for CMS' FreeListSpace") \ | |
3162 \ | |
3163 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
3164 "Delay in ms between expansion and allocation") \ | |
3165 \ | |
6817 | 3166 develop(uintx, GCWorkerDelayMillis, 0, \ |
3167 "Delay in ms in scheduling GC workers") \ | |
3168 \ | |
0 | 3169 product(intx, DeferThrSuspendLoopCount, 4000, \ |
3170 "(Unstable) Number of times to iterate in safepoint loop " \ | |
3171 " before blocking VM threads ") \ | |
3172 \ | |
3173 product(intx, DeferPollingPageLoopCount, -1, \ | |
3174 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
3175 "before changing safepoint polling page to RO ") \ | |
3176 \ | |
3177 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ | |
3178 \ | |
3179 product(bool, PSChunkLargeArrays, true, \ | |
3180 "true: process large arrays in chunks") \ | |
3181 \ | |
3182 product(uintx, GCDrainStackTargetSize, 64, \ | |
3183 "how many entries we'll try to leave on the stack during " \ | |
3184 "parallel GC") \ | |
3185 \ | |
3186 /* stack parameters */ \ | |
3187 product_pd(intx, StackYellowPages, \ | |
3188 "Number of yellow zone (recoverable overflows) pages") \ | |
3189 \ | |
3190 product_pd(intx, StackRedPages, \ | |
3191 "Number of red zone (unrecoverable overflows) pages") \ | |
3192 \ | |
3193 product_pd(intx, StackShadowPages, \ | |
3194 "Number of shadow zone (for overflow checking) pages" \ | |
3195 " this should exceed the depth of the VM and native call stack") \ | |
3196 \ | |
3197 product_pd(intx, ThreadStackSize, \ | |
3198 "Thread Stack Size (in Kbytes)") \ | |
3199 \ | |
3200 product_pd(intx, VMThreadStackSize, \ | |
3201 "Non-Java Thread Stack Size (in Kbytes)") \ | |
3202 \ | |
3203 product_pd(intx, CompilerThreadStackSize, \ | |
3204 "Compiler Thread Stack Size (in Kbytes)") \ | |
3205 \ | |
3206 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
3207 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
3208 \ | |
3209 product(uintx, ThreadSafetyMargin, 50*M, \ | |
3210 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
3211 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
3212 "disable this feature") \ | |
3213 \ | |
3214 /* code cache parameters */ \ | |
3215 develop(uintx, CodeCacheSegmentSize, 64, \ | |
3216 "Code cache segment size (in bytes) - smallest unit of " \ | |
3217 "allocation") \ | |
3218 \ | |
3219 develop_pd(intx, CodeEntryAlignment, \ | |
3220 "Code entry alignment for generated code (in bytes)") \ | |
3221 \ | |
1365 | 3222 product_pd(intx, OptoLoopAlignment, \ |
3223 "Align inner loops to zero relative to this modulus") \ | |
3224 \ | |
0 | 3225 product_pd(uintx, InitialCodeCacheSize, \ |
3226 "Initial code cache size (in bytes)") \ | |
3227 \ | |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3228 develop_pd(uintx, CodeCacheMinimumUseSpace, \ |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3229 "Minimum code cache size (in bytes) required to start VM.") \ |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3230 \ |
0 | 3231 product_pd(uintx, ReservedCodeCacheSize, \ |
3232 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
3233 \ | |
3234 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
3235 "When less than X space left, we stop compiling.") \ | |
3236 \ | |
3237 product_pd(uintx, CodeCacheExpansionSize, \ | |
3238 "Code cache expansion size (in bytes)") \ | |
3239 \ | |
3240 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
3241 "Minimum number of segments in a code cache block.") \ | |
3242 \ | |
3243 notproduct(bool, ExitOnFullCodeCache, false, \ | |
3244 "Exit the VM if we fill the code cache.") \ | |
3245 \ | |
4039 | 3246 product(bool, UseCodeCacheFlushing, true, \ |
1202 | 3247 "Attempt to clean the code cache before shutting off compiler") \ |
3248 \ | |
0 | 3249 /* interpreter debugging */ \ |
3250 develop(intx, BinarySwitchThreshold, 5, \ | |
3251 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
3252 "switch") \ | |
3253 \ | |
3254 develop(intx, StopInterpreterAt, 0, \ | |
3255 "Stops interpreter execution at specified bytecode number") \ | |
3256 \ | |
3257 develop(intx, TraceBytecodesAt, 0, \ | |
3258 "Traces bytecodes starting with specified bytecode number") \ | |
3259 \ | |
3260 /* compiler interface */ \ | |
3261 develop(intx, CIStart, 0, \ | |
3262 "the id of the first compilation to permit") \ | |
3263 \ | |
3264 develop(intx, CIStop, -1, \ | |
3265 "the id of the last compilation to permit") \ | |
3266 \ | |
3267 develop(intx, CIStartOSR, 0, \ | |
3268 "the id of the first osr compilation to permit " \ | |
3269 "(CICountOSR must be on)") \ | |
3270 \ | |
3271 develop(intx, CIStopOSR, -1, \ | |
3272 "the id of the last osr compilation to permit " \ | |
3273 "(CICountOSR must be on)") \ | |
3274 \ | |
3275 develop(intx, CIBreakAtOSR, -1, \ | |
3276 "id of osr compilation to break at") \ | |
3277 \ | |
3278 develop(intx, CIBreakAt, -1, \ | |
3279 "id of compilation to break at") \ | |
3280 \ | |
3281 product(ccstrlist, CompileOnly, "", \ | |
3282 "List of methods (pkg/class.name) to restrict compilation to") \ | |
3283 \ | |
3284 product(ccstr, CompileCommandFile, NULL, \ | |
3285 "Read compiler commands from this file [.hotspot_compiler]") \ | |
3286 \ | |
3287 product(ccstrlist, CompileCommand, "", \ | |
3288 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
3289 \ | |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3290 develop(bool, ReplayCompiles, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3291 "Enable replay of compilations from ReplayDataFile") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3292 \ |
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3293 product(ccstr, ReplayDataFile, NULL, \ |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3294 "File containing compilation replay information" \ |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3295 "[default: ./replay_pid%p.log] (%p replaced with pid)") \ |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3296 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3297 develop(intx, ReplaySuppressInitializers, 2, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3298 "Controls handling of class initialization during replay" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3299 "0 - don't do anything special" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3300 "1 - treat all class initializers as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3301 "2 - treat class initializers for application classes as empty" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3302 "3 - allow all class initializers to run during bootstrap but" \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3303 " pretend they are empty after starting replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3304 \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3305 develop(bool, ReplayIgnoreInitErrors, false, \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3306 "Ignore exceptions thrown during initialization for replay") \ |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3307 \ |
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3308 product(bool, DumpReplayDataOnError, true, \ |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3309 "Record replay data for crashing compiler threads") \ |
6972
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
6935
diff
changeset
|
3310 \ |
0 | 3311 product(bool, CICompilerCountPerCPU, false, \ |
3312 "1 compiler thread for log(N CPUs)") \ | |
3313 \ | |
3314 develop(intx, CIFireOOMAt, -1, \ | |
3315 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
3316 "(non-negative value throws OOM after this many CI accesses " \ | |
3317 "in each compile)") \ | |
10197
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3318 notproduct(intx, CICrashAt, -1, \ |
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3319 "id of compilation to trigger assert in compiler thread for " \ |
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3320 "the purpose of testing, e.g. generation of replay data") \ |
909
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3321 notproduct(bool, CIObjectFactoryVerify, false, \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3322 "enable potentially expensive verification in ciObjectFactory") \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3323 \ |
0 | 3324 /* Priorities */ \ |
3325 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
3326 \ | |
3327 product(intx, ThreadPriorityPolicy, 0, \ | |
3328 "0 : Normal. "\ | |
3329 " VM chooses priorities that are appropriate for normal "\ | |
3330 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
3331 " to normal native priority. Java priorities below NORM_PRIORITY"\ | |
3332 " map to lower native priority values. On Windows applications"\ | |
3333 " are allowed to use higher native priorities. However, with "\ | |
3334 " ThreadPriorityPolicy=0, VM will not use the highest possible"\ | |
3335 " native priority, THREAD_PRIORITY_TIME_CRITICAL, as it may "\ | |
3336 " interfere with system threads. On Linux thread priorities "\ | |
3337 " are ignored because the OS does not support static priority "\ | |
3338 " in SCHED_OTHER scheduling class which is the only choice for"\ | |
3339 " non-root, non-realtime applications. "\ | |
3340 "1 : Aggressive. "\ | |
3341 " Java thread priorities map over to the entire range of "\ | |
3342 " native thread priorities. Higher Java thread priorities map "\ | |
3343 " to higher native thread priorities. This policy should be "\ | |
3344 " used with care, as sometimes it can cause performance "\ | |
3345 " degradation in the application and/or the entire system. On "\ | |
3346 " Linux this policy requires root privilege.") \ | |
3347 \ | |
3348 product(bool, ThreadPriorityVerbose, false, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3349 "Print priority changes") \ |
0 | 3350 \ |
3351 product(intx, DefaultThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3352 "The native priority at which threads run if not elsewhere " \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3353 "specified (-1 means no change)") \ |
0 | 3354 \ |
3355 product(intx, CompilerThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3356 "The native priority at which compiler threads should run " \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3357 "(-1 means no change)") \ |
0 | 3358 \ |
3359 product(intx, VMThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3360 "The native priority at which the VM thread should run " \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3361 "(-1 means no change)") \ |
0 | 3362 \ |
3363 product(bool, CompilerThreadHintNoPreempt, true, \ | |
3364 "(Solaris only) Give compiler threads an extra quanta") \ | |
3365 \ | |
3366 product(bool, VMThreadHintNoPreempt, false, \ | |
3367 "(Solaris only) Give VM thread an extra quanta") \ | |
3368 \ | |
3369 product(intx, JavaPriority1_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3370 product(intx, JavaPriority2_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3371 product(intx, JavaPriority3_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3372 product(intx, JavaPriority4_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3373 product(intx, JavaPriority5_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3374 product(intx, JavaPriority6_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3375 product(intx, JavaPriority7_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3376 product(intx, JavaPriority8_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3377 product(intx, JavaPriority9_To_OSPriority, -1, "Map Java priorities to OS priorities") \ | |
3378 product(intx, JavaPriority10_To_OSPriority,-1, "Map Java priorities to OS priorities") \ | |
3379 \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3380 experimental(bool, UseCriticalJavaThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3381 "Java thread priority 10 maps to critical scheduling priority") \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3382 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3383 experimental(bool, UseCriticalCompilerThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3384 "Compiler thread(s) run at critical scheduling priority") \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3385 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3386 experimental(bool, UseCriticalCMSThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3387 "ConcurrentMarkSweep thread runs at critical scheduling priority")\ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
diff
changeset
|
3388 \ |
0 | 3389 /* compiler debugging */ \ |
3390 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
3391 "First class to consider when using +CompileTheWorld") \ | |
3392 \ | |
3393 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
3394 "Last class to consider when using +CompileTheWorld") \ | |
3395 \ | |
3396 develop(intx, NewCodeParameter, 0, \ | |
3397 "Testing Only: Create a dedicated integer parameter before " \ | |
3398 "putback") \ | |
3399 \ | |
3400 /* new oopmap storage allocation */ \ | |
3401 develop(intx, MinOopMapAllocation, 8, \ | |
3402 "Minimum number of OopMap entries in an OopMapSet") \ | |
3403 \ | |
3404 /* Background Compilation */ \ | |
3405 develop(intx, LongCompileThreshold, 50, \ | |
3406 "Used with +TraceLongCompiles") \ | |
3407 \ | |
3408 product(intx, StarvationMonitorInterval, 200, \ | |
3409 "Pause between each check in ms") \ | |
3410 \ | |
3411 /* recompilation */ \ | |
3412 product_pd(intx, CompileThreshold, \ | |
3413 "number of interpreted method invocations before (re-)compiling") \ | |
3414 \ | |
3415 product_pd(intx, BackEdgeThreshold, \ | |
3416 "Interpreter Back edge threshold at which an OSR compilation is invoked")\ | |
3417 \ | |
1783 | 3418 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
3419 "Interpreter (tier 0) invocation notification frequency.") \ | |
3420 \ | |
3421 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
3422 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3423 \ | |
3424 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
3425 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3426 "frequency.") \ | |
3427 \ | |
3964
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3428 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3429 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
dc45ae774613
7096639: Tiered: Incorrect counter overflow handling for inlined methods
iveresov
parents:
3960
diff
changeset
|
3430 \ |
1783 | 3431 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
3432 "Interpreter (tier 0) invocation notification frequency.") \ | |
3433 \ | |
3434 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
3435 "C1 without MDO (tier 2) invocation notification frequency.") \ | |
3436 \ | |
3437 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
3438 "C1 with MDO profiling (tier 3) invocation notification " \ | |
3439 "frequency.") \ | |
3440 \ | |
3441 product(intx, Tier2CompileThreshold, 0, \ | |
3442 "threshold at which tier 2 compilation is invoked") \ | |
3443 \ | |
3444 product(intx, Tier2BackEdgeThreshold, 0, \ | |
3445 "Back edge threshold at which tier 2 compilation is invoked") \ | |
3446 \ | |
3447 product(intx, Tier3InvocationThreshold, 200, \ | |
3448 "Compile if number of method invocations crosses this " \ | |
3449 "threshold") \ | |
3450 \ | |
3451 product(intx, Tier3MinInvocationThreshold, 100, \ | |
3452 "Minimum invocation to compile at tier 3") \ | |
3453 \ | |
3454 product(intx, Tier3CompileThreshold, 2000, \ | |
3455 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
3456 "minimum must be satisfied.") \ | |
3457 \ | |
4819 | 3458 product(intx, Tier3BackEdgeThreshold, 60000, \ |
1783 | 3459 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
3460 \ | |
3461 product(intx, Tier4InvocationThreshold, 5000, \ | |
3462 "Compile if number of method invocations crosses this " \ | |
3463 "threshold") \ | |
3464 \ | |
3465 product(intx, Tier4MinInvocationThreshold, 600, \ | |
3466 "Minimum invocation to compile at tier 4") \ | |
3467 \ | |
3468 product(intx, Tier4CompileThreshold, 15000, \ | |
3469 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
3470 "minimum must be satisfied.") \ | |
3471 \ | |
3472 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
3473 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
3474 \ | |
3475 product(intx, Tier3DelayOn, 5, \ | |
3476 "If C2 queue size grows over this amount per compiler thread " \ | |
3477 "stop compiling at tier 3 and start compiling at tier 2") \ | |
3478 \ | |
3479 product(intx, Tier3DelayOff, 2, \ | |
3480 "If C2 queue size is less than this amount per compiler thread " \ | |
3481 "allow methods compiled at tier 2 transition to tier 3") \ | |
3482 \ | |
3483 product(intx, Tier3LoadFeedback, 5, \ | |
3484 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
3485 "reaches this amount per compiler thread") \ | |
3486 \ | |
3487 product(intx, Tier4LoadFeedback, 3, \ | |
3488 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
3489 "reaches this amount per compiler thread") \ | |
3490 \ | |
3491 product(intx, TieredCompileTaskTimeout, 50, \ | |
3492 "Kill compile task if method was not used within " \ | |
3493 "given timeout in milliseconds") \ | |
3494 \ | |
3495 product(intx, TieredStopAtLevel, 4, \ | |
3496 "Stop at given compilation level") \ | |
3497 \ | |
3498 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
3499 "Start profiling in interpreter if the counters exceed tier 3" \ | |
3500 "thresholds by the specified percentage") \ | |
3501 \ | |
10319
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3502 product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \ |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3503 "Increase the compile threshold for C1 compilation if the code" \ |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3504 "cache is filled by the specified percentage.") \ |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10293
diff
changeset
|
3505 \ |
1783 | 3506 product(intx, TieredRateUpdateMinTime, 1, \ |
3507 "Minimum rate sampling interval (in milliseconds)") \ | |
3508 \ | |
3509 product(intx, TieredRateUpdateMaxTime, 25, \ | |
3510 "Maximum rate sampling interval (in milliseconds)") \ | |
0 | 3511 \ |
3512 product_pd(bool, TieredCompilation, \ | |
1783 | 3513 "Enable tiered compilation") \ |
3514 \ | |
3515 product(bool, PrintTieredEvents, false, \ | |
3516 "Print tiered events notifications") \ | |
0 | 3517 \ |
3518 product_pd(intx, OnStackReplacePercentage, \ | |
3519 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3520 "of CompileThreshold) before (re-)compiling OSR code") \ | |
3521 \ | |
3522 product(intx, InterpreterProfilePercentage, 33, \ | |
3523 "NON_TIERED number of method invocations/branches (expressed as %"\ | |
3524 "of CompileThreshold) before profiling in the interpreter") \ | |
3525 \ | |
3526 develop(intx, MaxRecompilationSearchLength, 10, \ | |
3527 "max. # frames to inspect searching for recompilee") \ | |
3528 \ | |
3529 develop(intx, MaxInterpretedSearchLength, 3, \ | |
3530 "max. # interp. frames to skip when searching for recompilee") \ | |
3531 \ | |
3532 develop(intx, DesiredMethodLimit, 8000, \ | |
3533 "desired max. method size (in bytecodes) after inlining") \ | |
3534 \ | |
3535 develop(intx, HugeMethodLimit, 8000, \ | |
3536 "don't compile methods larger than this if " \ | |
3537 "+DontCompileHugeMethods") \ | |
3538 \ | |
3539 /* New JDK 1.4 reflection implementation */ \ | |
3540 \ | |
3541 develop(bool, UseNewReflection, true, \ | |
3542 "Temporary flag for transition to reflection based on dynamic " \ | |
3543 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
3544 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
3545 "changes were needed") \ | |
3546 \ | |
3547 develop(bool, VerifyReflectionBytecodes, false, \ | |
3548 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
3549 "in situations like that described in 4486457 or for " \ | |
3550 "constructors generated for serialization, so can not be enabled "\ | |
3551 "in product.") \ | |
3552 \ | |
3553 product(bool, ReflectionWrapResolutionErrors, true, \ | |
3554 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
3555 "in InvocationTargetException. See 6531596") \ | |
3556 \ | |
12154
3a1df0dce3e5
8023872: Verification error in generated lambda classes
acorn
parents:
12132
diff
changeset
|
3557 develop(bool, VerifyLambdaBytecodes, false, \ |
3a1df0dce3e5
8023872: Verification error in generated lambda classes
acorn
parents:
12132
diff
changeset
|
3558 "Force verification of jdk 8 lambda metafactory bytecodes.") \ |
0 | 3559 \ |
3560 develop(intx, FastSuperclassLimit, 8, \ | |
3561 "Depth of hardwired instanceof accelerator array") \ | |
3562 \ | |
3563 /* Properties for Java libraries */ \ | |
3564 \ | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6197
diff
changeset
|
3565 product(uintx, MaxDirectMemorySize, 0, \ |
0 | 3566 "Maximum total size of NIO direct-buffer allocations") \ |
3567 \ | |
3568 /* temporary developer defined flags */ \ | |
3569 \ | |
3570 diagnostic(bool, UseNewCode, false, \ | |
3571 "Testing Only: Use the new version while testing") \ | |
3572 \ | |
3573 diagnostic(bool, UseNewCode2, false, \ | |
3574 "Testing Only: Use the new version while testing") \ | |
3575 \ | |
3576 diagnostic(bool, UseNewCode3, false, \ | |
3577 "Testing Only: Use the new version while testing") \ | |
3578 \ | |
3579 /* flags for performance data collection */ \ | |
3580 \ | |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3581 product(bool, UsePerfData, falseInEmbedded, \ |
0 | 3582 "Flag to disable jvmstat instrumentation for performance testing" \ |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3780
diff
changeset
|
3583 "and problem isolation purposes.") \ |
0 | 3584 \ |
3585 product(bool, PerfDataSaveToFile, false, \ | |
3586 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
3587 \ | |
3588 product(ccstr, PerfDataSaveFile, NULL, \ | |
3589 "Save PerfData memory to the specified absolute pathname," \ | |
3590 "%p in the file name if present will be replaced by pid") \ | |
3591 \ | |
3592 product(intx, PerfDataSamplingInterval, 50 /*ms*/, \ | |
3593 "Data sampling interval in milliseconds") \ | |
3594 \ | |
3595 develop(bool, PerfTraceDataCreation, false, \ | |
3596 "Trace creation of Performance Data Entries") \ | |
3597 \ | |
3598 develop(bool, PerfTraceMemOps, false, \ | |
3599 "Trace PerfMemory create/attach/detach calls") \ | |
3600 \ | |
3601 product(bool, PerfDisableSharedMem, false, \ | |
3602 "Store performance data in standard memory") \ | |
3603 \ | |
3604 product(intx, PerfDataMemorySize, 32*K, \ | |
3605 "Size of performance data memory region. Will be rounded " \ | |
3606 "up to a multiple of the native os page size.") \ | |
3607 \ | |
3608 product(intx, PerfMaxStringConstLength, 1024, \ | |
3609 "Maximum PerfStringConstant string length before truncation") \ | |
3610 \ | |
3611 product(bool, PerfAllowAtExitRegistration, false, \ | |
3612 "Allow registration of atexit() methods") \ | |
3613 \ | |
3614 product(bool, PerfBypassFileSystemCheck, false, \ | |
3615 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
3616 \ | |
3617 product(intx, UnguardOnExecutionViolation, 0, \ | |
3618 "Unguard page and retry on no-execute fault (Win32 only)" \ | |
3619 "0=off, 1=conservative, 2=aggressive") \ | |
3620 \ | |
3621 /* Serviceability Support */ \ | |
3622 \ | |
3623 product(bool, ManagementServer, false, \ | |
3624 "Create JMX Management Server") \ | |
3625 \ | |
3626 product(bool, DisableAttachMechanism, false, \ | |
3627 "Disable mechanism that allows tools to attach to this VM") \ | |
3628 \ | |
3629 product(bool, StartAttachListener, false, \ | |
3630 "Always start Attach Listener at VM startup") \ | |
3631 \ | |
3632 manageable(bool, PrintConcurrentLocks, false, \ | |
3633 "Print java.util.concurrent locks in thread dump") \ | |
3634 \ | |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3635 product(bool, TransmitErrorReport, false, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3636 "Enable error report transmission on erroneous termination") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3637 \ |
2209
e9aa2ca89ad6
7019718: make error reporting flags product instead of diagnostic
kamg
parents:
2204
diff
changeset
|
3638 product(ccstr, ErrorReportServer, NULL, \ |
2199
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3639 "Override built-in error report server address") \ |
d8a72fbc4be7
7003401: Implement VM error-reporting functionality on erroneous termination
kamg
parents:
2192
diff
changeset
|
3640 \ |
0 | 3641 /* Shared spaces */ \ |
3642 \ | |
3643 product(bool, UseSharedSpaces, true, \ | |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3644 "Use shared spaces for metadata") \ |
0 | 3645 \ |
3646 product(bool, RequireSharedSpaces, false, \ | |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
hseigel
parents:
7428
diff
changeset
|
3647 "Require shared spaces for metadata") \ |
0 | 3648 \ |
3649 product(bool, DumpSharedSpaces, false, \ | |
3650 "Special mode: JVM reads a class list, loads classes, builds " \ | |
3651 "shared spaces, and dumps the shared spaces to a file to be " \ | |
3652 "used in future JVM runs.") \ | |
3653 \ | |
3654 product(bool, PrintSharedSpaces, false, \ | |
3655 "Print usage of shared spaces") \ | |
3656 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3657 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
|
3658 "Size of read-write space for metadata (in bytes)") \ |
0 | 3659 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3660 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
|
3661 "Size of read-only space for metadata (in bytes)") \ |
0 | 3662 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3663 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
|
3664 "Size of the shared miscellaneous data area (in bytes)") \ |
0 | 3665 \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3666 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
|
3667 "Size of the shared miscellaneous code area (in bytes)") \ |
0 | 3668 \ |
8804
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3669 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
coleenp
parents:
8802
diff
changeset
|
3670 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
|
3671 "Address to allocate shared memory region for class data") \ |
0 | 3672 \ |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3673 diagnostic(bool, EnableInvokeDynamic, true, \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3674 "support JSR 292 (method handles, invokedynamic, " \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3675 "anonymous classes") \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2403
diff
changeset
|
3676 \ |
3757
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3677 diagnostic(bool, PrintMethodHandleStubs, false, \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3678 "Print generated stub code for method handles") \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents:
3745
diff
changeset
|
3679 \ |
710 | 3680 develop(bool, TraceMethodHandles, false, \ |
3681 "trace internal method handle operations") \ | |
3682 \ | |
3683 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
3684 "perform extra checks when constructing method handles") \ | |
3685 \ | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3686 diagnostic(bool, ShowHiddenFrames, false, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3687 "show method handle implementation frames (usually hidden)") \ |
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3688 \ |
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3689 experimental(bool, TrustFinalNonStaticFields, false, \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3690 "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
|
3691 \ |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3692 experimental(bool, FoldStableValues, false, \ |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3693 "Private flag to control optimizations for stable variables") \ |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3694 \ |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3695 develop(bool, TraceInvokeDynamic, false, \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3696 "trace internal invoke dynamic operations") \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3697 \ |
0 | 3698 diagnostic(bool, PauseAtStartup, false, \ |
3699 "Causes the VM to pause at startup time and wait for the pause " \ | |
3700 "file to be removed (default: ./vm.paused.<pid>)") \ | |
3701 \ | |
3702 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
3703 "The file to create and for whose removal to await when pausing " \ | |
3704 "at startup. (default: ./vm.paused.<pid>)") \ | |
3705 \ | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3706 diagnostic(bool, PauseAtExit, false, \ |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3707 "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
|
3708 \ |
0 | 3709 product(bool, ExtendedDTraceProbes, false, \ |
3710 "Enable performance-impacting dtrace probes") \ | |
3711 \ | |
3712 product(bool, DTraceMethodProbes, false, \ | |
3713 "Enable dtrace probes for method-entry and method-exit") \ | |
3714 \ | |
3715 product(bool, DTraceAllocProbes, false, \ | |
3716 "Enable dtrace probes for object allocation") \ | |
3717 \ | |
3718 product(bool, DTraceMonitorProbes, false, \ | |
3719 "Enable dtrace probes for monitor events") \ | |
3720 \ | |
3721 product(bool, RelaxAccessControlCheck, false, \ | |
3722 "Relax the access control checks in the verifier") \ | |
3723 \ | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3724 diagnostic(bool, PrintDTraceDOF, false, \ |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3725 "Print the DTrace DOF passed to the system for JSDT probes") \ |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3726 \ |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6935
diff
changeset
|
3727 product(uintx, StringTableSize, defaultStringTableSize, \ |
2378 | 3728 "Number of buckets in the interned String table") \ |
3729 \ | |
6934 | 3730 develop(bool, TraceDefaultMethods, false, \ |
3731 "Trace the default method processing steps") \ | |
3732 \ | |
3733 develop(bool, VerifyGenericSignatures, false, \ | |
3734 "Abort VM on erroneous or inconsistent generic signatures") \ | |
3735 \ | |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3736 product(bool, UseVMInterruptibleIO, false, \ |
0 | 3737 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3738 "EINTR for I/O operations results in OS_INTRPT. The default value"\ |
5915 | 3739 " of this flag is true for JDK 6 and earlier") \ |
3740 \ | |
3741 diagnostic(bool, WhiteBoxAPI, false, \ | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3742 "Enable internal testing APIs") \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3743 \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3744 product(bool, PrintGCCause, true, \ |
8702 | 3745 "Include GC cause in GC logging") \ |
3746 \ | |
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3747 product(bool , AllowNonVirtualCalls, false, \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3748 "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
|
3749 \ |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3750 diagnostic(ccstr, SharedArchiveFile, NULL, \ |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3751 "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
|
3752 \ |
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3753 experimental(uintx, ArrayAllocatorMallocLimit, \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3754 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
|
3755 "Allocation less than this value will be allocated " \ |
10405 | 3756 "using malloc. Larger allocations will use mmap.") \ |
3757 \ | |
3758 product(bool, EnableTracing, false, \ | |
3759 "Enable event-based tracing") \ | |
3760 product(bool, UseLockedTracing, false, \ | |
3761 "Use locked-tracing when doing event-based tracing") | |
3762 | |
0 | 3763 |
3764 /* | |
3765 * Macros for factoring of globals | |
3766 */ | |
3767 | |
3768 // Interface macros | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3769 #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
|
3770 #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
|
3771 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; |
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3772 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
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3773 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
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3774 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3775 #ifdef PRODUCT |
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3776 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type CONST_##name; const type name = value; |
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3777 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type CONST_##name; const type name = pd_##name; |
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3778 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type CONST_##name; |
0 | 3779 #else |
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3780 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; |
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3781 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; |
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3782 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3783 #endif |
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3784 // Special LP64 flags, product only needed for now. |
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3785 #ifdef _LP64 |
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3786 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
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3787 #else |
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3788 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
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3789 #endif // _LP64 |
0 | 3790 |
3791 // Implementation macros | |
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3792 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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3793 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; |
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3794 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; |
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3795 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
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3796 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
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3797 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; |
0 | 3798 #ifdef PRODUCT |
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3799 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type CONST_##name = value; |
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3800 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type CONST_##name = pd_##name; |
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3801 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type CONST_##name = value; |
0 | 3802 #else |
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3803 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; |
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3804 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; |
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3805 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; |
0 | 3806 #endif |
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3807 #ifdef _LP64 |
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3808 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
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3809 #else |
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3810 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
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3811 #endif // _LP64 |
0 | 3812 |
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3813 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 | 3814 |
3815 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
1972 | 3816 |
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3817 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) |
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3818 |
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3819 // Extensions |
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3820 |
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3821 #include "runtime/globals_ext.hpp" |
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3822 |
1972 | 3823 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |