Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/globals.hpp @ 14663:3edd4a71588b
8031818: Experimental VM flag for enforcing safe object construction
Summary: -XX:+AlwaysSafeConstructors to unconditionally emit the trailing constructor barrier.
Reviewed-by: kvn, roland
author | shade |
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date | Mon, 03 Mar 2014 15:31:27 +0400 |
parents | 3c3953fb3f2a |
children | 1179450ad3ee |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_GLOBALS_HPP |
26 #define SHARE_VM_RUNTIME_GLOBALS_HPP | |
27 | |
28 #include "utilities/debug.hpp" | |
4868 | 29 |
30 // use this for flags that are true per default in the tiered build | |
31 // but false in non-tiered builds, and vice versa | |
32 #ifdef TIERED | |
33 #define trueInTiered true | |
34 #define falseInTiered false | |
35 #else | |
36 #define trueInTiered false | |
37 #define falseInTiered true | |
38 #endif | |
39 | |
1972 | 40 #ifdef TARGET_ARCH_x86 |
41 # include "globals_x86.hpp" | |
42 #endif | |
43 #ifdef TARGET_ARCH_sparc | |
44 # include "globals_sparc.hpp" | |
45 #endif | |
46 #ifdef TARGET_ARCH_zero | |
47 # include "globals_zero.hpp" | |
48 #endif | |
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49 #ifdef TARGET_ARCH_arm |
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50 # include "globals_arm.hpp" |
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51 #endif |
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52 #ifdef TARGET_ARCH_ppc |
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53 # include "globals_ppc.hpp" |
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54 #endif |
1972 | 55 #ifdef TARGET_OS_FAMILY_linux |
56 # include "globals_linux.hpp" | |
57 #endif | |
58 #ifdef TARGET_OS_FAMILY_solaris | |
59 # include "globals_solaris.hpp" | |
60 #endif | |
61 #ifdef TARGET_OS_FAMILY_windows | |
62 # include "globals_windows.hpp" | |
63 #endif | |
14411 | 64 #ifdef TARGET_OS_FAMILY_aix |
65 # include "globals_aix.hpp" | |
66 #endif | |
3960 | 67 #ifdef TARGET_OS_FAMILY_bsd |
68 # include "globals_bsd.hpp" | |
69 #endif | |
1972 | 70 #ifdef TARGET_OS_ARCH_linux_x86 |
71 # include "globals_linux_x86.hpp" | |
72 #endif | |
73 #ifdef TARGET_OS_ARCH_linux_sparc | |
74 # include "globals_linux_sparc.hpp" | |
75 #endif | |
76 #ifdef TARGET_OS_ARCH_linux_zero | |
77 # include "globals_linux_zero.hpp" | |
78 #endif | |
79 #ifdef TARGET_OS_ARCH_solaris_x86 | |
80 # include "globals_solaris_x86.hpp" | |
81 #endif | |
82 #ifdef TARGET_OS_ARCH_solaris_sparc | |
83 # include "globals_solaris_sparc.hpp" | |
84 #endif | |
85 #ifdef TARGET_OS_ARCH_windows_x86 | |
86 # include "globals_windows_x86.hpp" | |
87 #endif | |
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88 #ifdef TARGET_OS_ARCH_linux_arm |
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89 # include "globals_linux_arm.hpp" |
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90 #endif |
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91 #ifdef TARGET_OS_ARCH_linux_ppc |
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92 # include "globals_linux_ppc.hpp" |
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93 #endif |
14411 | 94 #ifdef TARGET_OS_ARCH_aix_ppc |
95 # include "globals_aix_ppc.hpp" | |
96 #endif | |
3960 | 97 #ifdef TARGET_OS_ARCH_bsd_x86 |
98 # include "globals_bsd_x86.hpp" | |
99 #endif | |
100 #ifdef TARGET_OS_ARCH_bsd_zero | |
101 # include "globals_bsd_zero.hpp" | |
102 #endif | |
1972 | 103 #ifdef COMPILER1 |
104 #ifdef TARGET_ARCH_x86 | |
105 # include "c1_globals_x86.hpp" | |
106 #endif | |
107 #ifdef TARGET_ARCH_sparc | |
108 # include "c1_globals_sparc.hpp" | |
109 #endif | |
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110 #ifdef TARGET_ARCH_arm |
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111 # include "c1_globals_arm.hpp" |
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112 #endif |
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113 #ifdef TARGET_ARCH_ppc |
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114 # include "c1_globals_ppc.hpp" |
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115 #endif |
1972 | 116 #ifdef TARGET_OS_FAMILY_linux |
117 # include "c1_globals_linux.hpp" | |
118 #endif | |
119 #ifdef TARGET_OS_FAMILY_solaris | |
120 # include "c1_globals_solaris.hpp" | |
121 #endif | |
122 #ifdef TARGET_OS_FAMILY_windows | |
123 # include "c1_globals_windows.hpp" | |
124 #endif | |
14411 | 125 #ifdef TARGET_OS_FAMILY_aix |
126 # include "c1_globals_aix.hpp" | |
127 #endif | |
3960 | 128 #ifdef TARGET_OS_FAMILY_bsd |
129 # include "c1_globals_bsd.hpp" | |
130 #endif | |
1972 | 131 #endif |
132 #ifdef COMPILER2 | |
133 #ifdef TARGET_ARCH_x86 | |
134 # include "c2_globals_x86.hpp" | |
135 #endif | |
136 #ifdef TARGET_ARCH_sparc | |
137 # include "c2_globals_sparc.hpp" | |
138 #endif | |
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139 #ifdef TARGET_ARCH_arm |
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140 # include "c2_globals_arm.hpp" |
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141 #endif |
14411 | 142 #ifdef TARGET_ARCH_ppc |
143 # include "c2_globals_ppc.hpp" | |
144 #endif | |
1972 | 145 #ifdef TARGET_OS_FAMILY_linux |
146 # include "c2_globals_linux.hpp" | |
147 #endif | |
148 #ifdef TARGET_OS_FAMILY_solaris | |
149 # include "c2_globals_solaris.hpp" | |
150 #endif | |
151 #ifdef TARGET_OS_FAMILY_windows | |
152 # include "c2_globals_windows.hpp" | |
153 #endif | |
14411 | 154 #ifdef TARGET_OS_FAMILY_aix |
155 # include "c2_globals_aix.hpp" | |
156 #endif | |
3960 | 157 #ifdef TARGET_OS_FAMILY_bsd |
158 # include "c2_globals_bsd.hpp" | |
159 #endif | |
1972 | 160 #endif |
161 #ifdef SHARK | |
162 #ifdef TARGET_ARCH_zero | |
163 # include "shark_globals_zero.hpp" | |
164 #endif | |
165 #endif | |
166 | |
1692 | 167 #if !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK) |
0 | 168 define_pd_global(bool, BackgroundCompilation, false); |
169 define_pd_global(bool, UseTLAB, false); | |
170 define_pd_global(bool, CICompileOSR, false); | |
171 define_pd_global(bool, UseTypeProfile, false); | |
172 define_pd_global(bool, UseOnStackReplacement, false); | |
173 define_pd_global(bool, InlineIntrinsics, false); | |
174 define_pd_global(bool, PreferInterpreterNativeStubs, true); | |
175 define_pd_global(bool, ProfileInterpreter, false); | |
176 define_pd_global(bool, ProfileTraps, false); | |
177 define_pd_global(bool, TieredCompilation, false); | |
178 | |
179 define_pd_global(intx, CompileThreshold, 0); | |
180 define_pd_global(intx, BackEdgeThreshold, 0); | |
181 | |
182 define_pd_global(intx, OnStackReplacePercentage, 0); | |
183 define_pd_global(bool, ResizeTLAB, false); | |
184 define_pd_global(intx, FreqInlineSize, 0); | |
185 define_pd_global(intx, NewSizeThreadIncrease, 4*K); | |
186 define_pd_global(intx, InlineClassNatives, true); | |
187 define_pd_global(intx, InlineUnsafeOps, true); | |
188 define_pd_global(intx, InitialCodeCacheSize, 160*K); | |
189 define_pd_global(intx, ReservedCodeCacheSize, 32*M); | |
190 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
191 define_pd_global(intx, CodeCacheMinBlockLength, 1); | |
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192 define_pd_global(intx, CodeCacheMinimumUseSpace, 200*K); |
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193 define_pd_global(uintx,MetaspaceSize, ScaleForWordSize(4*M)); |
0 | 194 define_pd_global(bool, NeverActAsServerClassMachine, true); |
1064 | 195 define_pd_global(uint64_t,MaxRAM, 1ULL*G); |
0 | 196 #define CI_COMPILER_COUNT 0 |
197 #else | |
198 | |
199 #ifdef COMPILER2 | |
200 #define CI_COMPILER_COUNT 2 | |
201 #else | |
202 #define CI_COMPILER_COUNT 1 | |
203 #endif // COMPILER2 | |
204 | |
205 #endif // no compilers | |
206 | |
207 // string type aliases used only in this file | |
208 typedef const char* ccstr; | |
209 typedef const char* ccstrlist; // represents string arguments which accumulate | |
210 | |
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211 struct Flag { |
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212 enum Flags { |
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213 // value origin |
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214 DEFAULT = 0, |
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215 COMMAND_LINE = 1, |
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216 ENVIRON_VAR = 2, |
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217 CONFIG_FILE = 3, |
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218 MANAGEMENT = 4, |
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219 ERGONOMIC = 5, |
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220 ATTACH_ON_DEMAND = 6, |
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221 INTERNAL = 7, |
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222 |
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223 LAST_VALUE_ORIGIN = INTERNAL, |
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224 VALUE_ORIGIN_BITS = 4, |
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225 VALUE_ORIGIN_MASK = right_n_bits(VALUE_ORIGIN_BITS), |
0 | 226 |
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227 // flag kind |
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228 KIND_PRODUCT = 1 << 4, |
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229 KIND_MANAGEABLE = 1 << 5, |
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230 KIND_DIAGNOSTIC = 1 << 6, |
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231 KIND_EXPERIMENTAL = 1 << 7, |
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232 KIND_NOT_PRODUCT = 1 << 8, |
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233 KIND_DEVELOP = 1 << 9, |
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234 KIND_PLATFORM_DEPENDENT = 1 << 10, |
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235 KIND_READ_WRITE = 1 << 11, |
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236 KIND_C1 = 1 << 12, |
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237 KIND_C2 = 1 << 13, |
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238 KIND_ARCH = 1 << 14, |
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239 KIND_SHARK = 1 << 15, |
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240 KIND_LP64_PRODUCT = 1 << 16, |
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241 KIND_COMMERCIAL = 1 << 17, |
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242 |
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243 KIND_MASK = ~VALUE_ORIGIN_MASK |
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244 }; |
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245 |
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246 const char* _type; |
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247 const char* _name; |
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248 void* _addr; |
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249 NOT_PRODUCT(const char* _doc;) |
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250 Flags _flags; |
0 | 251 |
252 // points to all Flags static array | |
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253 static Flag* flags; |
0 | 254 |
255 // number of flags | |
256 static size_t numFlags; | |
257 | |
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258 static Flag* find_flag(const char* name, size_t length, bool allow_locked = false, bool return_flag = false); |
11070 | 259 static Flag* fuzzy_match(const char* name, size_t length, bool allow_locked = false); |
0 | 260 |
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261 void check_writable(); |
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262 |
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263 bool is_bool() const; |
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264 bool get_bool() const; |
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265 void set_bool(bool value); |
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266 |
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267 bool is_intx() const; |
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268 intx get_intx() const; |
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269 void set_intx(intx value); |
0 | 270 |
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271 bool is_uintx() const; |
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272 uintx get_uintx() const; |
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273 void set_uintx(uintx value); |
0 | 274 |
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275 bool is_uint64_t() const; |
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276 uint64_t get_uint64_t() const; |
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277 void set_uint64_t(uint64_t value); |
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278 |
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279 bool is_double() const; |
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280 double get_double() const; |
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281 void set_double(double value); |
0 | 282 |
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283 bool is_ccstr() const; |
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284 bool ccstr_accumulates() const; |
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285 ccstr get_ccstr() const; |
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286 void set_ccstr(ccstr value); |
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287 |
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288 Flags get_origin(); |
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289 void set_origin(Flags origin); |
1064 | 290 |
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291 bool is_default(); |
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292 bool is_ergonomic(); |
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293 bool is_command_line(); |
0 | 294 |
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295 bool is_product() const; |
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296 bool is_manageable() const; |
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297 bool is_diagnostic() const; |
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298 bool is_experimental() const; |
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299 bool is_notproduct() const; |
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300 bool is_develop() const; |
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301 bool is_read_write() const; |
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302 bool is_commercial() const; |
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303 |
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304 bool is_constant_in_binary() const; |
0 | 305 |
306 bool is_unlocker() const; | |
307 bool is_unlocked() const; | |
308 bool is_writeable() const; | |
309 bool is_external() const; | |
310 | |
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311 bool is_unlocker_ext() const; |
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312 bool is_unlocked_ext() const; |
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313 bool is_writeable_ext() const; |
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314 bool is_external_ext() const; |
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315 |
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316 void get_locked_message(char*, int) const; |
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317 void get_locked_message_ext(char*, int) const; |
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318 |
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319 void print_on(outputStream* st, bool withComments = false ); |
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320 void print_kind(outputStream* st); |
0 | 321 void print_as_flag(outputStream* st); |
322 }; | |
323 | |
324 // debug flags control various aspects of the VM and are global accessible | |
325 | |
326 // use FlagSetting to temporarily change some debug flag | |
327 // e.g. FlagSetting fs(DebugThisAndThat, true); | |
328 // restored to previous value upon leaving scope | |
329 class FlagSetting { | |
330 bool val; | |
331 bool* flag; | |
332 public: | |
333 FlagSetting(bool& fl, bool newValue) { flag = &fl; val = fl; fl = newValue; } | |
334 ~FlagSetting() { *flag = val; } | |
335 }; | |
336 | |
337 | |
338 class CounterSetting { | |
339 intx* counter; | |
340 public: | |
341 CounterSetting(intx* cnt) { counter = cnt; (*counter)++; } | |
342 ~CounterSetting() { (*counter)--; } | |
343 }; | |
344 | |
345 | |
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346 class UIntFlagSetting { |
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347 uintx val; |
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348 uintx* flag; |
0 | 349 public: |
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350 UIntFlagSetting(uintx& fl, uintx newValue) { flag = &fl; val = fl; fl = newValue; } |
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351 ~UIntFlagSetting() { *flag = val; } |
0 | 352 }; |
353 | |
354 | |
355 class DoubleFlagSetting { | |
356 double val; | |
357 double* flag; | |
358 public: | |
359 DoubleFlagSetting(double& fl, double newValue) { flag = &fl; val = fl; fl = newValue; } | |
360 ~DoubleFlagSetting() { *flag = val; } | |
361 }; | |
362 | |
363 | |
364 class CommandLineFlags { | |
365 public: | |
366 static bool boolAt(char* name, size_t len, bool* value); | |
367 static bool boolAt(char* name, bool* value) { return boolAt(name, strlen(name), value); } | |
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368 static bool boolAtPut(char* name, size_t len, bool* value, Flag::Flags origin); |
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369 static bool boolAtPut(char* name, bool* value, Flag::Flags origin) { return boolAtPut(name, strlen(name), value, origin); } |
0 | 370 |
371 static bool intxAt(char* name, size_t len, intx* value); | |
372 static bool intxAt(char* name, intx* value) { return intxAt(name, strlen(name), value); } | |
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373 static bool intxAtPut(char* name, size_t len, intx* value, Flag::Flags origin); |
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374 static bool intxAtPut(char* name, intx* value, Flag::Flags origin) { return intxAtPut(name, strlen(name), value, origin); } |
0 | 375 |
376 static bool uintxAt(char* name, size_t len, uintx* value); | |
377 static bool uintxAt(char* name, uintx* value) { return uintxAt(name, strlen(name), value); } | |
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378 static bool uintxAtPut(char* name, size_t len, uintx* value, Flag::Flags origin); |
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379 static bool uintxAtPut(char* name, uintx* value, Flag::Flags origin) { return uintxAtPut(name, strlen(name), value, origin); } |
0 | 380 |
1064 | 381 static bool uint64_tAt(char* name, size_t len, uint64_t* value); |
382 static bool uint64_tAt(char* name, uint64_t* value) { return uint64_tAt(name, strlen(name), value); } | |
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383 static bool uint64_tAtPut(char* name, size_t len, uint64_t* value, Flag::Flags origin); |
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384 static bool uint64_tAtPut(char* name, uint64_t* value, Flag::Flags origin) { return uint64_tAtPut(name, strlen(name), value, origin); } |
1064 | 385 |
0 | 386 static bool doubleAt(char* name, size_t len, double* value); |
387 static bool doubleAt(char* name, double* value) { return doubleAt(name, strlen(name), value); } | |
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388 static bool doubleAtPut(char* name, size_t len, double* value, Flag::Flags origin); |
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389 static bool doubleAtPut(char* name, double* value, Flag::Flags origin) { return doubleAtPut(name, strlen(name), value, origin); } |
0 | 390 |
391 static bool ccstrAt(char* name, size_t len, ccstr* value); | |
392 static bool ccstrAt(char* name, ccstr* value) { return ccstrAt(name, strlen(name), value); } | |
14183 | 393 // Contract: Flag will make private copy of the incoming value. |
394 // Outgoing value is always malloc-ed, and caller MUST call free. | |
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395 static bool ccstrAtPut(char* name, size_t len, ccstr* value, Flag::Flags origin); |
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396 static bool ccstrAtPut(char* name, ccstr* value, Flag::Flags origin) { return ccstrAtPut(name, strlen(name), value, origin); } |
0 | 397 |
398 // Returns false if name is not a command line flag. | |
399 static bool wasSetOnCmdline(const char* name, bool* value); | |
4773 | 400 static void printSetFlags(outputStream* out); |
0 | 401 |
4773 | 402 static void printFlags(outputStream* out, bool withComments); |
0 | 403 |
404 static void verify() PRODUCT_RETURN; | |
405 }; | |
406 | |
407 // use this for flags that are true by default in the debug version but | |
408 // false in the optimized version, and vice versa | |
409 #ifdef ASSERT | |
410 #define trueInDebug true | |
411 #define falseInDebug false | |
412 #else | |
413 #define trueInDebug false | |
414 #define falseInDebug true | |
415 #endif | |
416 | |
417 // use this for flags that are true per default in the product build | |
418 // but false in development builds, and vice versa | |
419 #ifdef PRODUCT | |
420 #define trueInProduct true | |
421 #define falseInProduct false | |
422 #else | |
423 #define trueInProduct false | |
424 #define falseInProduct true | |
425 #endif | |
426 | |
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427 #ifdef JAVASE_EMBEDDED |
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428 #define falseInEmbedded false |
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429 #else |
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430 #define falseInEmbedded true |
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431 #endif |
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432 |
0 | 433 // develop flags are settable / visible only during development and are constant in the PRODUCT version |
434 // product flags are always settable / visible | |
435 // notproduct flags are settable / visible only during development and are not declared in the PRODUCT version | |
436 | |
437 // A flag must be declared with one of the following types: | |
438 // bool, intx, uintx, ccstr. | |
439 // The type "ccstr" is an alias for "const char*" and is used | |
440 // only in this file, because the macrology requires single-token type names. | |
441 | |
442 // Note: Diagnostic options not meant for VM tuning or for product modes. | |
443 // They are to be used for VM quality assurance or field diagnosis | |
444 // of VM bugs. They are hidden so that users will not be encouraged to | |
445 // try them as if they were VM ordinary execution options. However, they | |
446 // are available in the product version of the VM. Under instruction | |
447 // from support engineers, VM customers can turn them on to collect | |
448 // diagnostic information about VM problems. To use a VM diagnostic | |
449 // option, you must first specify +UnlockDiagnosticVMOptions. | |
450 // (This master switch also affects the behavior of -Xprintflags.) | |
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451 // |
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452 // experimental flags are in support of features that are not |
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453 // part of the officially supported product, but are available |
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454 // for experimenting with. They could, for example, be performance |
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455 // features that may not have undergone full or rigorous QA, but which may |
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456 // help performance in some cases and released for experimentation |
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457 // by the community of users and developers. This flag also allows one to |
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458 // be able to build a fully supported product that nonetheless also |
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459 // ships with some unsupported, lightly tested, experimental features. |
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460 // Like the UnlockDiagnosticVMOptions flag above, there is a corresponding |
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461 // UnlockExperimentalVMOptions flag, which allows the control and |
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462 // modification of the experimental flags. |
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463 // |
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464 // Nota bene: neither diagnostic nor experimental options should be used casually, |
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465 // and they are not supported on production loads, except under explicit |
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466 // direction from support engineers. |
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467 // |
0 | 468 // manageable flags are writeable external product flags. |
469 // They are dynamically writeable through the JDK management interface | |
470 // (com.sun.management.HotSpotDiagnosticMXBean API) and also through JConsole. | |
471 // These flags are external exported interface (see CCC). The list of | |
472 // manageable flags can be queried programmatically through the management | |
473 // interface. | |
474 // | |
475 // A flag can be made as "manageable" only if | |
476 // - the flag is defined in a CCC as an external exported interface. | |
477 // - the VM implementation supports dynamic setting of the flag. | |
478 // This implies that the VM must *always* query the flag variable | |
479 // and not reuse state related to the flag state at any given time. | |
480 // - you want the flag to be queried programmatically by the customers. | |
481 // | |
482 // product_rw flags are writeable internal product flags. | |
483 // They are like "manageable" flags but for internal/private use. | |
484 // The list of product_rw flags are internal/private flags which | |
485 // may be changed/removed in a future release. It can be set | |
486 // through the management interface to get/set value | |
487 // when the name of flag is supplied. | |
488 // | |
489 // A flag can be made as "product_rw" only if | |
490 // - the VM implementation supports dynamic setting of the flag. | |
491 // This implies that the VM must *always* query the flag variable | |
492 // and not reuse state related to the flag state at any given time. | |
493 // | |
494 // Note that when there is a need to support develop flags to be writeable, | |
495 // it can be done in the same way as product_rw. | |
496 | |
350
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497 #define RUNTIME_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw, lp64_product) \ |
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498 \ |
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499 lp64_product(bool, UseCompressedOops, false, \ |
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500 "Use 32-bit object references in 64-bit VM. " \ |
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501 "lp64_product means flag is always constant in 32 bit VM") \ |
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502 \ |
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503 lp64_product(bool, UseCompressedClassPointers, false, \ |
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504 "Use 32-bit class pointers in 64-bit VM. " \ |
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505 "lp64_product means flag is always constant in 32 bit VM") \ |
0 | 506 \ |
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507 notproduct(bool, CheckCompressedOops, true, \ |
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508 "Generate checks in encoding/decoding code in debug VM") \ |
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509 \ |
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510 product_pd(uintx, HeapBaseMinAddress, \ |
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511 "OS specific low limit for heap base address") \ |
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512 \ |
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513 diagnostic(bool, PrintCompressedOopsMode, false, \ |
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514 "Print compressed oops base address and encoding mode") \ |
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515 \ |
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516 lp64_product(intx, ObjectAlignmentInBytes, 8, \ |
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517 "Default object alignment in bytes, 8 is minimum") \ |
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518 \ |
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519 product(bool, AssumeMP, false, \ |
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520 "Instruct the VM to assume multiple processors are available") \ |
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521 \ |
0 | 522 /* UseMembar is theoretically a temp flag used for memory barrier \ |
523 * removal testing. It was supposed to be removed before FCS but has \ | |
524 * been re-added (see 6401008) */ \ | |
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525 product_pd(bool, UseMembar, \ |
0 | 526 "(Unstable) Issues membars on thread state transitions") \ |
527 \ | |
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528 /* Temp PPC Flag to allow disabling the use of lwsync on ppc platforms \ |
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529 * that don't support it. This will be replaced by processor detection \ |
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530 * logic. \ |
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531 */ \ |
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532 product(bool, UsePPCLWSYNC, true, \ |
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533 "Use lwsync instruction if true, else use slower sync") \ |
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534 \ |
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535 develop(bool, CleanChunkPoolAsync, falseInEmbedded, \ |
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536 "Clean the chunk pool asynchronously") \ |
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537 \ |
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538 experimental(bool, AlwaysSafeConstructors, false, \ |
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539 "Force safe construction, as if all fields are final.") \ |
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540 \ |
6818 | 541 /* Temporary: See 6948537 */ \ |
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542 experimental(bool, UseMemSetInBOT, true, \ |
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543 "(Unstable) uses memset in BOT updates in GC code") \ |
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544 \ |
0 | 545 diagnostic(bool, UnlockDiagnosticVMOptions, trueInDebug, \ |
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546 "Enable normal processing of flags relating to field diagnostics")\ |
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547 \ |
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548 experimental(bool, UnlockExperimentalVMOptions, false, \ |
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549 "Enable normal processing of flags relating to experimental " \ |
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550 "features") \ |
0 | 551 \ |
552 product(bool, JavaMonitorsInStackTrace, true, \ | |
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553 "Print information about Java monitor locks when the stacks are" \ |
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554 "dumped") \ |
0 | 555 \ |
556 product_pd(bool, UseLargePages, \ | |
557 "Use large page memory") \ | |
558 \ | |
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559 product_pd(bool, UseLargePagesIndividualAllocation, \ |
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560 "Allocate large pages individually for better affinity") \ |
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561 \ |
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562 develop(bool, LargePagesIndividualAllocationInjectError, false, \ |
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563 "Fail large pages individual allocation") \ |
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564 \ |
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565 product(bool, UseLargePagesInMetaspace, false, \ |
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566 "Use large page memory in metaspace. " \ |
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567 "Only used if UseLargePages is enabled.") \ |
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568 \ |
0 | 569 develop(bool, TracePageSizes, false, \ |
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570 "Trace page size selection and usage") \ |
0 | 571 \ |
572 product(bool, UseNUMA, false, \ | |
573 "Use NUMA if available") \ | |
574 \ | |
3885 | 575 product(bool, UseNUMAInterleaving, false, \ |
576 "Interleave memory across NUMA nodes if available") \ | |
577 \ | |
578 product(uintx, NUMAInterleaveGranularity, 2*M, \ | |
579 "Granularity to use for NUMA interleaving on Windows OS") \ | |
580 \ | |
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581 product(bool, ForceNUMA, false, \ |
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582 "Force NUMA optimizations on single-node/UMA systems") \ |
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583 \ |
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584 product(uintx, NUMAChunkResizeWeight, 20, \ |
14358 | 585 "Percentage (0-100) used to weight the current sample when " \ |
0 | 586 "computing exponentially decaying average for " \ |
587 "AdaptiveNUMAChunkSizing") \ | |
588 \ | |
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589 product(uintx, NUMASpaceResizeRate, 1*G, \ |
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590 "Do not reallocate more than this amount per collection") \ |
0 | 591 \ |
592 product(bool, UseAdaptiveNUMAChunkSizing, true, \ | |
593 "Enable adaptive chunk sizing for NUMA") \ | |
594 \ | |
595 product(bool, NUMAStats, false, \ | |
596 "Print NUMA stats in detailed heap information") \ | |
597 \ | |
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598 product(uintx, NUMAPageScanRate, 256, \ |
0 | 599 "Maximum number of pages to include in the page scan procedure") \ |
600 \ | |
601 product_pd(bool, NeedsDeoptSuspend, \ | |
602 "True for register window machines (sparc/ia64)") \ | |
603 \ | |
604 product(intx, UseSSE, 99, \ | |
605 "Highest supported SSE instructions set on x86/x64") \ | |
606 \ | |
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607 product(bool, UseAES, false, \ |
6894 | 608 "Control whether AES instructions can be used on x86/x64") \ |
609 \ | |
0 | 610 product(uintx, LargePageSizeInBytes, 0, \ |
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611 "Large page size (0 to let VM choose the page size)") \ |
0 | 612 \ |
613 product(uintx, LargePageHeapSizeThreshold, 128*M, \ | |
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614 "Use large pages if maximum heap is at least this big") \ |
0 | 615 \ |
616 product(bool, ForceTimeHighResolution, false, \ | |
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617 "Using high time resolution (for Win32 only)") \ |
0 | 618 \ |
619 develop(bool, TraceItables, false, \ | |
620 "Trace initialization and use of itables") \ | |
621 \ | |
622 develop(bool, TracePcPatching, false, \ | |
623 "Trace usage of frame::patch_pc") \ | |
624 \ | |
625 develop(bool, TraceJumps, false, \ | |
626 "Trace assembly jumps in thread ring buffer") \ | |
627 \ | |
628 develop(bool, TraceRelocator, false, \ | |
629 "Trace the bytecode relocator") \ | |
630 \ | |
631 develop(bool, TraceLongCompiles, false, \ | |
632 "Print out every time compilation is longer than " \ | |
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633 "a given threshold") \ |
0 | 634 \ |
635 develop(bool, SafepointALot, false, \ | |
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636 "Generate a lot of safepoints. This works with " \ |
0 | 637 "GuaranteedSafepointInterval") \ |
638 \ | |
639 product_pd(bool, BackgroundCompilation, \ | |
640 "A thread requesting compilation is not blocked during " \ | |
641 "compilation") \ | |
642 \ | |
643 product(bool, PrintVMQWaitTime, false, \ | |
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644 "Print out the waiting time in VM operation queue") \ |
0 | 645 \ |
646 develop(bool, NoYieldsInMicrolock, false, \ | |
647 "Disable yields in microlock") \ | |
648 \ | |
649 develop(bool, TraceOopMapGeneration, false, \ | |
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650 "Show OopMapGeneration") \ |
0 | 651 \ |
652 product(bool, MethodFlushing, true, \ | |
653 "Reclamation of zombie and not-entrant methods") \ | |
654 \ | |
655 develop(bool, VerifyStack, false, \ | |
656 "Verify stack of each thread when it is entering a runtime call") \ | |
657 \ | |
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658 diagnostic(bool, ForceUnreachable, false, \ |
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659 "Make all non code cache addresses to be unreachable by " \ |
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660 "forcing use of 64bit literal fixups") \ |
0 | 661 \ |
662 notproduct(bool, StressDerivedPointers, false, \ | |
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663 "Force scavenge when a derived pointer is detected on stack " \ |
0 | 664 "after rtm call") \ |
665 \ | |
666 develop(bool, TraceDerivedPointers, false, \ | |
667 "Trace traversal of derived pointers on stack") \ | |
668 \ | |
669 notproduct(bool, TraceCodeBlobStacks, false, \ | |
670 "Trace stack-walk of codeblobs") \ | |
671 \ | |
672 product(bool, PrintJNIResolving, false, \ | |
673 "Used to implement -v:jni") \ | |
674 \ | |
675 notproduct(bool, PrintRewrites, false, \ | |
676 "Print methods that are being rewritten") \ | |
677 \ | |
678 product(bool, UseInlineCaches, true, \ | |
679 "Use Inline Caches for virtual calls ") \ | |
680 \ | |
681 develop(bool, InlineArrayCopy, true, \ | |
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682 "Inline arraycopy native that is known to be part of " \ |
0 | 683 "base library DLL") \ |
684 \ | |
685 develop(bool, InlineObjectHash, true, \ | |
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686 "Inline Object::hashCode() native that is known to be part " \ |
0 | 687 "of base library DLL") \ |
688 \ | |
689 develop(bool, InlineNatives, true, \ | |
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690 "Inline natives that are known to be part of base library DLL") \ |
0 | 691 \ |
692 develop(bool, InlineMathNatives, true, \ | |
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693 "Inline SinD, CosD, etc.") \ |
0 | 694 \ |
695 develop(bool, InlineClassNatives, true, \ | |
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696 "Inline Class.isInstance, etc") \ |
0 | 697 \ |
698 develop(bool, InlineThreadNatives, true, \ | |
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699 "Inline Thread.currentThread, etc") \ |
0 | 700 \ |
701 develop(bool, InlineUnsafeOps, true, \ | |
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702 "Inline memory ops (native methods) from sun.misc.Unsafe") \ |
0 | 703 \ |
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704 product(bool, CriticalJNINatives, true, \ |
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705 "Check for critical JNI entry points") \ |
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706 \ |
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707 notproduct(bool, StressCriticalJNINatives, false, \ |
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708 "Exercise register saving code in critical natives") \ |
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709 \ |
681 | 710 product(bool, UseSSE42Intrinsics, false, \ |
711 "SSE4.2 versions of intrinsics") \ | |
712 \ | |
6894 | 713 product(bool, UseAESIntrinsics, false, \ |
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714 "Use intrinsics for AES versions of crypto") \ |
6894 | 715 \ |
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716 product(bool, UseCRC32Intrinsics, false, \ |
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717 "use intrinsics for java.util.zip.CRC32") \ |
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718 \ |
0 | 719 develop(bool, TraceCallFixup, false, \ |
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720 "Trace all call fixups") \ |
0 | 721 \ |
722 develop(bool, DeoptimizeALot, false, \ | |
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723 "Deoptimize at every exit from the runtime system") \ |
0 | 724 \ |
434 | 725 notproduct(ccstrlist, DeoptimizeOnlyAt, "", \ |
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726 "A comma separated list of bcis to deoptimize at") \ |
0 | 727 \ |
728 product(bool, DeoptimizeRandom, false, \ | |
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729 "Deoptimize random frames on random exit from the runtime system")\ |
0 | 730 \ |
731 notproduct(bool, ZombieALot, false, \ | |
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732 "Create zombies (non-entrant) at exit from the runtime system") \ |
0 | 733 \ |
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734 product(bool, UnlinkSymbolsALot, false, \ |
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735 "Unlink unreferenced symbols from the symbol table at safepoints")\ |
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736 \ |
0 | 737 notproduct(bool, WalkStackALot, false, \ |
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738 "Trace stack (no print) at every exit from the runtime system") \ |
0 | 739 \ |
4006 | 740 product(bool, Debugging, false, \ |
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741 "Set when executing debug methods in debug.cpp " \ |
0 | 742 "(to prevent triggering assertions)") \ |
743 \ | |
744 notproduct(bool, StrictSafepointChecks, trueInDebug, \ | |
745 "Enable strict checks that safepoints cannot happen for threads " \ | |
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746 "that use No_Safepoint_Verifier") \ |
0 | 747 \ |
748 notproduct(bool, VerifyLastFrame, false, \ | |
749 "Verify oops on last frame on entry to VM") \ | |
750 \ | |
751 develop(bool, TraceHandleAllocation, false, \ | |
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752 "Print out warnings when suspiciously many handles are allocated")\ |
0 | 753 \ |
754 product(bool, UseCompilerSafepoints, true, \ | |
755 "Stop at safepoints in compiled code") \ | |
756 \ | |
757 product(bool, FailOverToOldVerifier, true, \ | |
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758 "Fail over to old verifier when split verifier fails") \ |
0 | 759 \ |
760 develop(bool, ShowSafepointMsgs, false, \ | |
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761 "Show message about safepoint synchronization") \ |
0 | 762 \ |
763 product(bool, SafepointTimeout, false, \ | |
764 "Time out and warn or fail after SafepointTimeoutDelay " \ | |
765 "milliseconds if failed to reach safepoint") \ | |
766 \ | |
767 develop(bool, DieOnSafepointTimeout, false, \ | |
768 "Die upon failure to reach safepoint (see SafepointTimeout)") \ | |
769 \ | |
770 /* 50 retries * (5 * current_retry_count) millis = ~6.375 seconds */ \ | |
771 /* typically, at most a few retries are needed */ \ | |
772 product(intx, SuspendRetryCount, 50, \ | |
773 "Maximum retry count for an external suspend request") \ | |
774 \ | |
775 product(intx, SuspendRetryDelay, 5, \ | |
776 "Milliseconds to delay per retry (* current_retry_count)") \ | |
777 \ | |
778 product(bool, AssertOnSuspendWaitFailure, false, \ | |
779 "Assert/Guarantee on external suspend wait failure") \ | |
780 \ | |
781 product(bool, TraceSuspendWaitFailures, false, \ | |
782 "Trace external suspend wait failures") \ | |
783 \ | |
784 product(bool, MaxFDLimit, true, \ | |
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785 "Bump the number of file descriptors to maximum in Solaris") \ |
0 | 786 \ |
4872
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787 diagnostic(bool, LogEvents, true, \ |
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788 "Enable the various ring buffer event logs") \ |
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789 \ |
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790 diagnostic(uintx, LogEventsBufferEntries, 10, \ |
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791 "Number of ring buffer event logs") \ |
0 | 792 \ |
793 product(bool, BytecodeVerificationRemote, true, \ | |
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794 "Enable the Java bytecode verifier for remote classes") \ |
0 | 795 \ |
796 product(bool, BytecodeVerificationLocal, false, \ | |
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797 "Enable the Java bytecode verifier for local classes") \ |
0 | 798 \ |
799 develop(bool, ForceFloatExceptions, trueInDebug, \ | |
800 "Force exceptions on FP stack under/overflow") \ | |
801 \ | |
802 develop(bool, VerifyStackAtCalls, false, \ | |
803 "Verify that the stack pointer is unchanged after calls") \ | |
804 \ | |
805 develop(bool, TraceJavaAssertions, false, \ | |
806 "Trace java language assertions") \ | |
807 \ | |
808 notproduct(bool, CheckAssertionStatusDirectives, false, \ | |
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809 "Temporary - see javaClasses.cpp") \ |
0 | 810 \ |
811 notproduct(bool, PrintMallocFree, false, \ | |
812 "Trace calls to C heap malloc/free allocation") \ | |
813 \ | |
1681
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814 product(bool, PrintOopAddress, false, \ |
0 | 815 "Always print the location of the oop") \ |
816 \ | |
817 notproduct(bool, VerifyCodeCacheOften, false, \ | |
818 "Verify compiled-code cache often") \ | |
819 \ | |
820 develop(bool, ZapDeadCompiledLocals, false, \ | |
821 "Zap dead locals in compiler frames") \ | |
822 \ | |
823 notproduct(bool, ZapDeadLocalsOld, false, \ | |
824 "Zap dead locals (old version, zaps all frames when " \ | |
825 "entering the VM") \ | |
826 \ | |
827 notproduct(bool, CheckOopishValues, false, \ | |
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828 "Warn if value contains oop (requires ZapDeadLocals)") \ |
0 | 829 \ |
830 develop(bool, UseMallocOnly, false, \ | |
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831 "Use only malloc/free for allocation (no resource area/arena)") \ |
0 | 832 \ |
833 develop(bool, PrintMalloc, false, \ | |
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834 "Print all malloc/free calls") \ |
0 | 835 \ |
2250 | 836 develop(bool, PrintMallocStatistics, false, \ |
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837 "Print malloc/free statistics") \ |
2250 | 838 \ |
0 | 839 develop(bool, ZapResourceArea, trueInDebug, \ |
840 "Zap freed resource/arena space with 0xABABABAB") \ | |
841 \ | |
842 notproduct(bool, ZapVMHandleArea, trueInDebug, \ | |
843 "Zap freed VM handle space with 0xBCBCBCBC") \ | |
844 \ | |
845 develop(bool, ZapJNIHandleArea, trueInDebug, \ | |
846 "Zap freed JNI handle space with 0xFEFEFEFE") \ | |
847 \ | |
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848 notproduct(bool, ZapStackSegments, trueInDebug, \ |
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849 "Zap allocated/freed stack segments with 0xFADFADED") \ |
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850 \ |
263
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851 develop(bool, ZapUnusedHeapArea, trueInDebug, \ |
0 | 852 "Zap unused heap space with 0xBAADBABE") \ |
853 \ | |
263
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854 develop(bool, TraceZapUnusedHeapArea, false, \ |
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855 "Trace zapping of unused heap space") \ |
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856 \ |
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857 develop(bool, CheckZapUnusedHeapArea, false, \ |
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858 "Check zapping of unused heap space") \ |
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859 \ |
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860 develop(bool, ZapFillerObjects, trueInDebug, \ |
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861 "Zap filler objects with 0xDEAFBABE") \ |
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862 \ |
0 | 863 develop(bool, PrintVMMessages, true, \ |
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864 "Print VM messages on console") \ |
0 | 865 \ |
866 product(bool, PrintGCApplicationConcurrentTime, false, \ | |
867 "Print the time the application has been running") \ | |
868 \ | |
869 product(bool, PrintGCApplicationStoppedTime, false, \ | |
870 "Print the time the application has been stopped") \ | |
871 \ | |
6605 | 872 diagnostic(bool, VerboseVerification, false, \ |
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873 "Display detailed verification details") \ |
6605 | 874 \ |
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875 notproduct(uintx, ErrorHandlerTest, 0, \ |
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876 "If > 0, provokes an error after VM initialization; the value " \ |
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877 "determines which error to provoke. See test_error_handler() " \ |
1490
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878 "in debug.cpp.") \ |
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879 \ |
0 | 880 develop(bool, Verbose, false, \ |
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881 "Print additional debugging information from other modes") \ |
0 | 882 \ |
883 develop(bool, PrintMiscellaneous, false, \ | |
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884 "Print uncategorized debugging information (requires +Verbose)") \ |
0 | 885 \ |
886 develop(bool, WizardMode, false, \ | |
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887 "Print much more debugging information") \ |
0 | 888 \ |
889 product(bool, ShowMessageBoxOnError, false, \ | |
890 "Keep process alive on VM fatal error") \ | |
891 \ | |
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892 product(bool, CreateMinidumpOnCrash, false, \ |
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893 "Create minidump on VM fatal error") \ |
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894 \ |
0 | 895 product_pd(bool, UseOSErrorReporting, \ |
896 "Let VM fatal error propagate to the OS (ie. WER on Windows)") \ | |
897 \ | |
898 product(bool, SuppressFatalErrorMessage, false, \ | |
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899 "Report NO fatal error message (avoid deadlock)") \ |
0 | 900 \ |
901 product(ccstrlist, OnError, "", \ | |
902 "Run user-defined commands on fatal error; see VMError.cpp " \ | |
903 "for examples") \ | |
904 \ | |
905 product(ccstrlist, OnOutOfMemoryError, "", \ | |
906 "Run user-defined commands on first java.lang.OutOfMemoryError") \ | |
907 \ | |
615
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908 manageable(bool, HeapDumpBeforeFullGC, false, \ |
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909 "Dump heap to file before any major stop-the-world GC") \ |
615
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910 \ |
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911 manageable(bool, HeapDumpAfterFullGC, false, \ |
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912 "Dump heap to file after any major stop-the-world GC") \ |
615
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913 \ |
0 | 914 manageable(bool, HeapDumpOnOutOfMemoryError, false, \ |
915 "Dump heap to file when java.lang.OutOfMemoryError is thrown") \ | |
916 \ | |
917 manageable(ccstr, HeapDumpPath, NULL, \ | |
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918 "When HeapDumpOnOutOfMemoryError is on, the path (filename or " \ |
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919 "directory) of the dump file (defaults to java_pid<pid>.hprof " \ |
0 | 920 "in the working directory)") \ |
921 \ | |
922 develop(uintx, SegmentedHeapDumpThreshold, 2*G, \ | |
923 "Generate a segmented heap dump (JAVA PROFILE 1.0.2 format) " \ | |
924 "when the heap usage is larger than this") \ | |
925 \ | |
926 develop(uintx, HeapDumpSegmentSize, 1*G, \ | |
927 "Approximate segment size when generating a segmented heap dump") \ | |
928 \ | |
929 develop(bool, BreakAtWarning, false, \ | |
930 "Execute breakpoint upon encountering VM warning") \ | |
931 \ | |
932 develop(bool, TraceVMOperation, false, \ | |
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933 "Trace VM operations") \ |
0 | 934 \ |
935 develop(bool, UseFakeTimers, false, \ | |
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936 "Tell whether the VM should use system time or a fake timer") \ |
0 | 937 \ |
6197 | 938 product(ccstr, NativeMemoryTracking, "off", \ |
939 "Native memory tracking options") \ | |
940 \ | |
6770
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941 diagnostic(bool, PrintNMTStatistics, false, \ |
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942 "Print native memory tracking summary data if it is on") \ |
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943 \ |
8810
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944 diagnostic(bool, AutoShutdownNMT, true, \ |
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945 "Automatically shutdown native memory tracking under stress " \ |
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946 "situations. When set to false, native memory tracking tries to " \ |
8810
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947 "stay alive at the expense of JVM performance") \ |
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948 \ |
0 | 949 diagnostic(bool, LogCompilation, false, \ |
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950 "Log compilation activity in detail to LogFile") \ |
0 | 951 \ |
952 product(bool, PrintCompilation, false, \ | |
953 "Print compilations") \ | |
954 \ | |
955 diagnostic(bool, TraceNMethodInstalls, false, \ | |
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956 "Trace nmethod installation") \ |
0 | 957 \ |
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958 diagnostic(intx, ScavengeRootsInCode, 2, \ |
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959 "0: do not allow scavengable oops in the code cache; " \ |
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960 "1: allow scavenging from the code cache; " \ |
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961 "2: emit as many constants as the compiler can see") \ |
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962 \ |
0 | 963 product(bool, AlwaysRestoreFPU, false, \ |
964 "Restore the FPU control word after every JNI call (expensive)") \ | |
965 \ | |
4064
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966 diagnostic(bool, PrintCompilation2, false, \ |
0 | 967 "Print additional statistics per compilation") \ |
968 \ | |
100
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969 diagnostic(bool, PrintAdapterHandlers, false, \ |
0 | 970 "Print code generated for i2c/c2i adapters") \ |
971 \ | |
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972 diagnostic(bool, VerifyAdapterCalls, trueInDebug, \ |
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973 "Verify that i2c/c2i adapters are called properly") \ |
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974 \ |
1207
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975 develop(bool, VerifyAdapterSharing, false, \ |
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976 "Verify that the code for shared adapters is the equivalent") \ |
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977 \ |
100
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978 diagnostic(bool, PrintAssembly, false, \ |
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979 "Print assembly code (using external disassembler.so)") \ |
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980 \ |
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981 diagnostic(ccstr, PrintAssemblyOptions, NULL, \ |
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982 "Print options string passed to disassembler.so") \ |
100
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983 \ |
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984 diagnostic(bool, PrintNMethods, false, \ |
0 | 985 "Print assembly code for nmethods when generated") \ |
986 \ | |
100
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987 diagnostic(bool, PrintNativeNMethods, false, \ |
0 | 988 "Print assembly code for native nmethods when generated") \ |
989 \ | |
990 develop(bool, PrintDebugInfo, false, \ | |
991 "Print debug information for all nmethods when generated") \ | |
992 \ | |
993 develop(bool, PrintRelocations, false, \ | |
994 "Print relocation information for all nmethods when generated") \ | |
995 \ | |
996 develop(bool, PrintDependencies, false, \ | |
997 "Print dependency information for all nmethods when generated") \ | |
998 \ | |
999 develop(bool, PrintExceptionHandlers, false, \ | |
1000 "Print exception handler tables for all nmethods when generated") \ | |
1001 \ | |
7428
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1002 develop(bool, StressCompiledExceptionHandlers, false, \ |
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1003 "Exercise compiled exception handlers") \ |
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1004 \ |
0 | 1005 develop(bool, InterceptOSException, false, \ |
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1006 "Start debugger when an implicit OS (e.g. NULL) " \ |
0 | 1007 "exception happens") \ |
1008 \ | |
7595
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1009 product(bool, PrintCodeCache, false, \ |
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1010 "Print the code cache memory usage when exiting") \ |
0 | 1011 \ |
1012 develop(bool, PrintCodeCache2, false, \ | |
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1013 "Print detailed usage information on the code cache when exiting")\ |
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1014 \ |
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1015 product(bool, PrintCodeCacheOnCompilation, false, \ |
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1016 "Print the code cache memory usage each time a method is " \ |
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1017 "compiled") \ |
0 | 1018 \ |
100
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1019 diagnostic(bool, PrintStubCode, false, \ |
0 | 1020 "Print generated stub code") \ |
1021 \ | |
1022 product(bool, StackTraceInThrowable, true, \ | |
1023 "Collect backtrace in throwable when exception happens") \ | |
1024 \ | |
1025 product(bool, OmitStackTraceInFastThrow, true, \ | |
1026 "Omit backtraces for some 'hot' exceptions in optimized code") \ | |
1027 \ | |
1028 product(bool, ProfilerPrintByteCodeStatistics, false, \ | |
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1029 "Print bytecode statistics when dumping profiler output") \ |
0 | 1030 \ |
1031 product(bool, ProfilerRecordPC, false, \ | |
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1032 "Collect ticks for each 16 byte interval of compiled code") \ |
0 | 1033 \ |
1064 | 1034 product(bool, ProfileVM, false, \ |
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1035 "Profile ticks that fall within VM (either in the VM Thread " \ |
0 | 1036 "or VM code called through stubs)") \ |
1037 \ | |
1038 product(bool, ProfileIntervals, false, \ | |
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1039 "Print profiles for each interval (see ProfileIntervalsTicks)") \ |
0 | 1040 \ |
1041 notproduct(bool, ProfilerCheckIntervals, false, \ | |
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1042 "Collect and print information on spacing of profiler ticks") \ |
0 | 1043 \ |
1044 develop(bool, PrintJVMWarnings, false, \ | |
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1045 "Print warnings for unimplemented JVM functions") \ |
0 | 1046 \ |
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1047 product(bool, PrintWarnings, true, \ |
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1048 "Print JVM warnings to output stream") \ |
1870
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1049 \ |
0 | 1050 notproduct(uintx, WarnOnStalledSpinLock, 0, \ |
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1051 "Print warnings for stalled SpinLocks") \ |
0 | 1052 \ |
1053 product(bool, RegisterFinalizersAtInit, true, \ | |
1054 "Register finalizable objects at end of Object.<init> or " \ | |
1064 | 1055 "after allocation") \ |
0 | 1056 \ |
1057 develop(bool, RegisterReferences, true, \ | |
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1058 "Tell whether the VM should register soft/weak/final/phantom " \ |
0 | 1059 "references") \ |
1060 \ | |
1061 develop(bool, IgnoreRewrites, false, \ | |
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1062 "Suppress rewrites of bytecodes in the oopmap generator. " \ |
0 | 1063 "This is unsafe!") \ |
1064 \ | |
1065 develop(bool, PrintCodeCacheExtension, false, \ | |
1066 "Print extension of code cache") \ | |
1067 \ | |
1068 develop(bool, UsePrivilegedStack, true, \ | |
1069 "Enable the security JVM functions") \ | |
1070 \ | |
1071 develop(bool, ProtectionDomainVerification, true, \ | |
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1072 "Verify protection domain before resolution in system dictionary")\ |
0 | 1073 \ |
1074 product(bool, ClassUnloading, true, \ | |
1075 "Do unloading of classes") \ | |
1076 \ | |
1077 develop(bool, DisableStartThread, false, \ | |
1078 "Disable starting of additional Java threads " \ | |
1079 "(for debugging only)") \ | |
1080 \ | |
1081 develop(bool, MemProfiling, false, \ | |
1082 "Write memory usage profiling to log file") \ | |
1083 \ | |
1084 notproduct(bool, PrintSystemDictionaryAtExit, false, \ | |
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1085 "Print the system dictionary at exit") \ |
0 | 1086 \ |
4864
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1087 experimental(intx, PredictedLoadedClassCount, 0, \ |
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1088 "Experimental: Tune loaded class cache starting size") \ |
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1089 \ |
0 | 1090 diagnostic(bool, UnsyncloadClass, false, \ |
514 | 1091 "Unstable: VM calls loadClass unsynchronized. Custom " \ |
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1092 "class loader must call VM synchronized for findClass " \ |
514 | 1093 "and defineClass.") \ |
1094 \ | |
1095 product(bool, AlwaysLockClassLoader, false, \ | |
1096 "Require the VM to acquire the class loader lock before calling " \ | |
1097 "loadClass() even for class loaders registering " \ | |
1064 | 1098 "as parallel capable") \ |
514 | 1099 \ |
1100 product(bool, AllowParallelDefineClass, false, \ | |
1101 "Allow parallel defineClass requests for class loaders " \ | |
1064 | 1102 "registering as parallel capable") \ |
514 | 1103 \ |
1104 product(bool, MustCallLoadClassInternal, false, \ | |
1064 | 1105 "Call loadClassInternal() rather than loadClass()") \ |
0 | 1106 \ |
1107 product_pd(bool, DontYieldALot, \ | |
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1108 "Throw away obvious excess yield calls (for Solaris only)") \ |
0 | 1109 \ |
1110 product_pd(bool, ConvertSleepToYield, \ | |
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1111 "Convert sleep(0) to thread yield " \ |
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1112 "(may be off for Solaris to improve GUI)") \ |
0 | 1113 \ |
1114 product(bool, ConvertYieldToSleep, false, \ | |
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1115 "Convert yield to a sleep of MinSleepInterval to simulate Win32 " \ |
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1116 "behavior (Solaris only)") \ |
0 | 1117 \ |
1118 product(bool, UseBoundThreads, true, \ | |
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1119 "Bind user level threads to kernel threads (for Solaris only)") \ |
0 | 1120 \ |
1121 develop(bool, UseDetachedThreads, true, \ | |
1122 "Use detached threads that are recycled upon termination " \ | |
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1123 "(for Solaris only)") \ |
0 | 1124 \ |
1125 product(bool, UseLWPSynchronization, true, \ | |
1126 "Use LWP-based instead of libthread-based synchronization " \ | |
1127 "(SPARC only)") \ | |
1128 \ | |
370
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1129 product(ccstr, SyncKnobs, NULL, \ |
0 | 1130 "(Unstable) Various monitor synchronization tunables") \ |
1131 \ | |
1132 product(intx, EmitSync, 0, \ | |
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1133 "(Unsafe, Unstable) " \ |
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1134 "Control emission of inline sync fast-path code") \ |
0 | 1135 \ |
1587 | 1136 product(intx, MonitorBound, 0, "Bound Monitor population") \ |
1137 \ | |
1138 product(bool, MonitorInUseLists, false, "Track Monitors for Deflation") \ | |
1139 \ | |
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1140 product(intx, SyncFlags, 0, "(Unsafe, Unstable) Experimental Sync flags") \ |
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1141 \ |
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1142 product(intx, SyncVerbose, 0, "(Unstable)") \ |
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1143 \ |
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1144 product(intx, ClearFPUAtPark, 0, "(Unsafe, Unstable)") \ |
0 | 1145 \ |
7587 | 1146 product(intx, hashCode, 5, \ |
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1147 "(Unstable) select hashCode generation algorithm") \ |
0 | 1148 \ |
1149 product(intx, WorkAroundNPTLTimedWaitHang, 1, \ | |
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1150 "(Unstable, Linux-specific) " \ |
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1151 "avoid NPTL-FUTEX hang pthread_cond_timedwait") \ |
0 | 1152 \ |
1064 | 1153 product(bool, FilterSpuriousWakeups, true, \ |
1154 "Prevent spurious or premature wakeups from object.wait " \ | |
1155 "(Solaris only)") \ | |
0 | 1156 \ |
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1157 product(intx, NativeMonitorTimeout, -1, "(Unstable)") \ |
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1158 \ |
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1159 product(intx, NativeMonitorFlags, 0, "(Unstable)") \ |
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1160 \ |
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1161 product(intx, NativeMonitorSpinLimit, 20, "(Unstable)") \ |
0 | 1162 \ |
1163 develop(bool, UsePthreads, false, \ | |
1164 "Use pthread-based instead of libthread-based synchronization " \ | |
1165 "(SPARC only)") \ | |
1166 \ | |
1167 product(bool, AdjustConcurrency, false, \ | |
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1168 "Call thr_setconcurrency at thread creation time to avoid " \ |
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1169 "LWP starvation on MP systems (for Solaris Only)") \ |
0 | 1170 \ |
1171 product(bool, ReduceSignalUsage, false, \ | |
1172 "Reduce the use of OS signals in Java and/or the VM") \ | |
1173 \ | |
1174 develop_pd(bool, ShareVtableStubs, \ | |
1175 "Share vtable stubs (smaller code but worse branch prediction") \ | |
1176 \ | |
1177 develop(bool, LoadLineNumberTables, true, \ | |
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1178 "Tell whether the class file parser loads line number tables") \ |
0 | 1179 \ |
1180 develop(bool, LoadLocalVariableTables, true, \ | |
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1181 "Tell whether the class file parser loads local variable tables") \ |
0 | 1182 \ |
1183 develop(bool, LoadLocalVariableTypeTables, true, \ | |
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1184 "Tell whether the class file parser loads local variable type" \ |
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1185 "tables") \ |
0 | 1186 \ |
1187 product(bool, AllowUserSignalHandlers, false, \ | |
1188 "Do not complain if the application installs signal handlers " \ | |
1189 "(Solaris & Linux only)") \ | |
1190 \ | |
1191 product(bool, UseSignalChaining, true, \ | |
1192 "Use signal-chaining to invoke signal handlers installed " \ | |
1193 "by the application (Solaris & Linux only)") \ | |
1194 \ | |
1195 product(bool, UseAltSigs, false, \ | |
1196 "Use alternate signals instead of SIGUSR1 & SIGUSR2 for VM " \ | |
1064 | 1197 "internal signals (Solaris only)") \ |
0 | 1198 \ |
1199 product(bool, AllowJNIEnvProxy, false, \ | |
1200 "Allow JNIEnv proxies for jdbx") \ | |
1201 \ | |
1202 product(bool, JNIDetachReleasesMonitors, true, \ | |
1203 "JNI DetachCurrentThread releases monitors owned by thread") \ | |
1204 \ | |
1205 product(bool, RestoreMXCSROnJNICalls, false, \ | |
1206 "Restore MXCSR when returning from JNI calls") \ | |
1207 \ | |
1208 product(bool, CheckJNICalls, false, \ | |
1209 "Verify all arguments to JNI calls") \ | |
1210 \ | |
1211 product(bool, UseFastJNIAccessors, true, \ | |
1212 "Use optimized versions of Get<Primitive>Field") \ | |
1213 \ | |
1214 product(bool, EagerXrunInit, false, \ | |
1215 "Eagerly initialize -Xrun libraries; allows startup profiling, " \ | |
12836
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1216 "but not all -Xrun libraries may support the state of the VM " \ |
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1217 "at this time") \ |
0 | 1218 \ |
1219 product(bool, PreserveAllAnnotations, false, \ | |
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1220 "Preserve RuntimeInvisibleAnnotations as well " \ |
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1221 "as RuntimeVisibleAnnotations") \ |
0 | 1222 \ |
1223 develop(uintx, PreallocatedOutOfMemoryErrorCount, 4, \ | |
1224 "Number of OutOfMemoryErrors preallocated with backtrace") \ | |
1225 \ | |
1226 product(bool, LazyBootClassLoader, true, \ | |
1227 "Enable/disable lazy opening of boot class path entries") \ | |
1228 \ | |
405 | 1229 product(bool, UseXMMForArrayCopy, false, \ |
1230 "Use SSE2 MOVQ instruction for Arraycopy") \ | |
1231 \ | |
0 | 1232 product(intx, FieldsAllocationStyle, 1, \ |
1366
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1233 "0 - type based with oops first, 1 - with oops last, " \ |
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1234 "2 - oops in super and sub classes are together") \ |
0 | 1235 \ |
1236 product(bool, CompactFields, true, \ | |
1237 "Allocate nonstatic fields in gaps between previous fields") \ | |
1238 \ | |
7587 | 1239 notproduct(bool, PrintFieldLayout, false, \ |
1240 "Print field layout for each class") \ | |
1241 \ | |
1242 product(intx, ContendedPaddingWidth, 128, \ | |
1243 "How many bytes to pad the fields/classes marked @Contended with")\ | |
1244 \ | |
1245 product(bool, EnableContended, true, \ | |
1246 "Enable @Contended annotation support") \ | |
1247 \ | |
1248 product(bool, RestrictContended, true, \ | |
1249 "Restrict @Contended to trusted classes") \ | |
1250 \ | |
0 | 1251 product(bool, UseBiasedLocking, true, \ |
1252 "Enable biased locking in JVM") \ | |
1253 \ | |
1254 product(intx, BiasedLockingStartupDelay, 4000, \ | |
1255 "Number of milliseconds to wait before enabling biased locking") \ | |
1256 \ | |
1257 diagnostic(bool, PrintBiasedLockingStatistics, false, \ | |
1258 "Print statistics of biased locking in JVM") \ | |
1259 \ | |
1260 product(intx, BiasedLockingBulkRebiasThreshold, 20, \ | |
1261 "Threshold of number of revocations per type to try to " \ | |
1262 "rebias all objects in the heap of that type") \ | |
1263 \ | |
1264 product(intx, BiasedLockingBulkRevokeThreshold, 40, \ | |
1265 "Threshold of number of revocations per type to permanently " \ | |
1266 "revoke biases of all objects in the heap of that type") \ | |
1267 \ | |
1268 product(intx, BiasedLockingDecayTime, 25000, \ | |
1269 "Decay time (in milliseconds) to re-enable bulk rebiasing of a " \ | |
1270 "type after previous bulk rebias") \ | |
1271 \ | |
1272 /* tracing */ \ | |
1273 \ | |
1274 notproduct(bool, TraceRuntimeCalls, false, \ | |
1275 "Trace run-time calls") \ | |
1276 \ | |
1277 develop(bool, TraceJNICalls, false, \ | |
1278 "Trace JNI calls") \ | |
1279 \ | |
14333
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|
1280 develop(bool, StressRewriter, false, \ |
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|
1281 "Stress linktime bytecode rewriting") \ |
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diff
changeset
|
1282 \ |
0 | 1283 notproduct(bool, TraceJVMCalls, false, \ |
1284 "Trace JVM calls") \ | |
1285 \ | |
370
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325
diff
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|
1286 product(ccstr, TraceJVMTI, NULL, \ |
0 | 1287 "Trace flags for JVMTI functions and events") \ |
1288 \ | |
1289 /* This option can change an EMCP method into an obsolete method. */ \ | |
1290 /* This can affect tests that except specific methods to be EMCP. */ \ | |
1291 /* This option should be used with caution. */ \ | |
1292 product(bool, StressLdcRewrite, false, \ | |
1293 "Force ldc -> ldc_w rewrite during RedefineClasses") \ | |
1294 \ | |
1295 product(intx, TraceRedefineClasses, 0, \ | |
1296 "Trace level for JVMTI RedefineClasses") \ | |
1297 \ | |
1574 | 1298 develop(bool, StressMethodComparator, false, \ |
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1299 "Run the MethodComparator on all loaded methods") \ |
1574 | 1300 \ |
0 | 1301 /* change to false by default sometime after Mustang */ \ |
1302 product(bool, VerifyMergedCPBytecodes, true, \ | |
1303 "Verify bytecodes after RedefineClasses constant pool merging") \ | |
1304 \ | |
1305 develop(bool, TraceJNIHandleAllocation, false, \ | |
1306 "Trace allocation/deallocation of JNI handle blocks") \ | |
1307 \ | |
1308 develop(bool, TraceThreadEvents, false, \ | |
1309 "Trace all thread events") \ | |
1310 \ | |
1311 develop(bool, TraceBytecodes, false, \ | |
1312 "Trace bytecode execution") \ | |
1313 \ | |
1314 develop(bool, TraceClassInitialization, false, \ | |
1315 "Trace class initialization") \ | |
1316 \ | |
1317 develop(bool, TraceExceptions, false, \ | |
1318 "Trace exceptions") \ | |
1319 \ | |
1320 develop(bool, TraceICs, false, \ | |
1321 "Trace inline cache changes") \ | |
1322 \ | |
1323 notproduct(bool, TraceInvocationCounterOverflow, false, \ | |
1324 "Trace method invocation counter overflow") \ | |
1325 \ | |
1326 develop(bool, TraceInlineCacheClearing, false, \ | |
1327 "Trace clearing of inline caches in nmethods") \ | |
1328 \ | |
1329 develop(bool, TraceDependencies, false, \ | |
1330 "Trace dependencies") \ | |
1331 \ | |
1332 develop(bool, VerifyDependencies, trueInDebug, \ | |
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1333 "Exercise and verify the compilation dependency mechanism") \ |
0 | 1334 \ |
1335 develop(bool, TraceNewOopMapGeneration, false, \ | |
1336 "Trace OopMapGeneration") \ | |
1337 \ | |
1338 develop(bool, TraceNewOopMapGenerationDetailed, false, \ | |
1339 "Trace OopMapGeneration: print detailed cell states") \ | |
1340 \ | |
1341 develop(bool, TimeOopMap, false, \ | |
1342 "Time calls to GenerateOopMap::compute_map() in sum") \ | |
1343 \ | |
1344 develop(bool, TimeOopMap2, false, \ | |
1345 "Time calls to GenerateOopMap::compute_map() individually") \ | |
1346 \ | |
1347 develop(bool, TraceMonitorMismatch, false, \ | |
1348 "Trace monitor matching failures during OopMapGeneration") \ | |
1349 \ | |
1350 develop(bool, TraceOopMapRewrites, false, \ | |
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1351 "Trace rewriting of method oops during oop map generation") \ |
0 | 1352 \ |
1353 develop(bool, TraceSafepoint, false, \ | |
1354 "Trace safepoint operations") \ | |
1355 \ | |
1356 develop(bool, TraceICBuffer, false, \ | |
1357 "Trace usage of IC buffer") \ | |
1358 \ | |
1359 develop(bool, TraceCompiledIC, false, \ | |
1360 "Trace changes of compiled IC") \ | |
1361 \ | |
1362 notproduct(bool, TraceZapDeadLocals, false, \ | |
1363 "Trace zapping dead locals") \ | |
1364 \ | |
1365 develop(bool, TraceStartupTime, false, \ | |
1366 "Trace setup time") \ | |
1367 \ | |
1368 develop(bool, TraceProtectionDomainVerification, false, \ | |
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1369 "Trace protection domain verification") \ |
0 | 1370 \ |
1371 develop(bool, TraceClearedExceptions, false, \ | |
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1372 "Print when an exception is forcibly cleared") \ |
0 | 1373 \ |
1374 product(bool, TraceClassResolution, false, \ | |
1375 "Trace all constant pool resolutions (for debugging)") \ | |
1376 \ | |
1377 product(bool, TraceBiasedLocking, false, \ | |
1378 "Trace biased locking in JVM") \ | |
1379 \ | |
1380 product(bool, TraceMonitorInflation, false, \ | |
1381 "Trace monitor inflation in JVM") \ | |
1382 \ | |
1383 /* gc */ \ | |
1384 \ | |
1385 product(bool, UseSerialGC, false, \ | |
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1386 "Use the Serial garbage collector") \ |
342
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|
1387 \ |
1193
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|
1388 product(bool, UseG1GC, false, \ |
342
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|
1389 "Use the Garbage-First garbage collector") \ |
0 | 1390 \ |
1391 product(bool, UseParallelGC, false, \ | |
1392 "Use the Parallel Scavenge garbage collector") \ | |
1393 \ | |
1394 product(bool, UseParallelOldGC, false, \ | |
1395 "Use the Parallel Old garbage collector") \ | |
1396 \ | |
1397 product(uintx, HeapMaximumCompactionInterval, 20, \ | |
1398 "How often should we maximally compact the heap (not allowing " \ | |
1399 "any dead space)") \ | |
1400 \ | |
1401 product(uintx, HeapFirstMaximumCompactionCount, 3, \ | |
1402 "The collection count for the first maximum compaction") \ | |
1403 \ | |
1404 product(bool, UseMaximumCompactionOnSystemGC, true, \ | |
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1405 "Use maximum compaction in the Parallel Old garbage collector " \ |
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1406 "for a system GC") \ |
0 | 1407 \ |
1408 product(uintx, ParallelOldDeadWoodLimiterMean, 50, \ | |
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1409 "The mean used by the parallel compact dead wood " \ |
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1410 "limiter (a number between 0-100)") \ |
0 | 1411 \ |
1412 product(uintx, ParallelOldDeadWoodLimiterStdDev, 80, \ | |
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1413 "The standard deviation used by the parallel compact dead wood " \ |
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1414 "limiter (a number between 0-100)") \ |
0 | 1415 \ |
1416 product(uintx, ParallelGCThreads, 0, \ | |
1417 "Number of parallel threads parallel gc will use") \ | |
1418 \ | |
4095
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|
1419 product(bool, UseDynamicNumberOfGCThreads, false, \ |
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|
1420 "Dynamically choose the number of parallel threads " \ |
bca17e38de00
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|
1421 "parallel gc will use") \ |
bca17e38de00
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|
1422 \ |
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|
1423 diagnostic(bool, ForceDynamicNumberOfGCThreads, false, \ |
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1424 "Force dynamic selection of the number of " \ |
4095
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|
1425 "parallel threads parallel gc will use to aid debugging") \ |
bca17e38de00
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|
1426 \ |
bca17e38de00
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|
1427 product(uintx, HeapSizePerGCThread, ScaleForWordSize(64*M), \ |
bca17e38de00
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|
1428 "Size of heap (bytes) per GC thread used in calculating the " \ |
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|
1429 "number of GC threads") \ |
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|
1430 \ |
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|
1431 product(bool, TraceDynamicGCThreads, false, \ |
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|
1432 "Trace the dynamic GC thread usage") \ |
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|
1433 \ |
483
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changeset
|
1434 develop(bool, ParallelOldGCSplitALot, false, \ |
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1435 "Provoke splitting (copying data from a young gen space to " \ |
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
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diff
changeset
|
1436 "multiple destination spaces)") \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
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481
diff
changeset
|
1437 \ |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
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diff
changeset
|
1438 develop(uintx, ParallelOldGCSplitInterval, 3, \ |
0f773163217d
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diff
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|
1439 "How often to provoke splitting a young gen space") \ |
0 | 1440 \ |
1284 | 1441 product(uintx, ConcGCThreads, 0, \ |
1442 "Number of threads concurrent gc will use") \ | |
342
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1443 \ |
0 | 1444 product(uintx, YoungPLABSize, 4096, \ |
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1445 "Size of young gen promotion LAB's (in HeapWords)") \ |
0 | 1446 \ |
1447 product(uintx, OldPLABSize, 1024, \ | |
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1448 "Size of old gen promotion LAB's (in HeapWords)") \ |
0 | 1449 \ |
1450 product(uintx, GCTaskTimeStampEntries, 200, \ | |
1451 "Number of time stamp entries per gc worker thread") \ | |
1452 \ | |
1453 product(bool, AlwaysTenure, false, \ | |
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1454 "Always tenure objects in eden (ParallelGC only)") \ |
0 | 1455 \ |
1456 product(bool, NeverTenure, false, \ | |
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1457 "Never tenure objects in eden, may tenure on overflow " \ |
1064 | 1458 "(ParallelGC only)") \ |
0 | 1459 \ |
1460 product(bool, ScavengeBeforeFullGC, true, \ | |
1064 | 1461 "Scavenge youngest generation before each full GC, " \ |
1462 "used with UseParallelGC") \ | |
0 | 1463 \ |
1464 develop(bool, ScavengeWithObjectsInToSpace, false, \ | |
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1465 "Allow scavenges to occur when to-space contains objects") \ |
0 | 1466 \ |
1467 product(bool, UseConcMarkSweepGC, false, \ | |
1468 "Use Concurrent Mark-Sweep GC in the old generation") \ | |
1469 \ | |
1470 product(bool, ExplicitGCInvokesConcurrent, false, \ | |
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1471 "A System.gc() request invokes a concurrent collection; " \ |
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1472 "(effective only when UseConcMarkSweepGC)") \ |
0 | 1473 \ |
1474 product(bool, ExplicitGCInvokesConcurrentAndUnloadsClasses, false, \ | |
1064 | 1475 "A System.gc() request invokes a concurrent collection and " \ |
1476 "also unloads classes during such a concurrent gc cycle " \ | |
1477 "(effective only when UseConcMarkSweepGC)") \ | |
0 | 1478 \ |
1520
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|
1479 product(bool, GCLockerInvokesConcurrent, false, \ |
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1480 "The exit of a JNI critical section necessitating a scavenge, " \ |
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1481 "also kicks off a background concurrent collection") \ |
1520
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|
1482 \ |
1991
016a3628c885
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|
1483 product(uintx, GCLockerEdenExpansionPercent, 5, \ |
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1484 "How much the GC can expand the eden by while the GC locker " \ |
1991
016a3628c885
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changeset
|
1485 "is active (as a percentage)") \ |
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|
1486 \ |
8853
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|
1487 diagnostic(intx, GCLockerRetryAllocationCount, 2, \ |
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1488 "Number of times to retry allocations when " \ |
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1489 "blocked by the GC locker") \ |
8853
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1490 \ |
0 | 1491 develop(bool, UseCMSAdaptiveFreeLists, true, \ |
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1492 "Use adaptive free lists in the CMS generation") \ |
0 | 1493 \ |
1494 develop(bool, UseAsyncConcMarkSweepGC, true, \ | |
1495 "Use Asynchronous Concurrent Mark-Sweep GC in the old generation")\ | |
1496 \ | |
1497 develop(bool, RotateCMSCollectionTypes, false, \ | |
1498 "Rotate the CMS collections among concurrent and STW") \ | |
1499 \ | |
1500 product(bool, UseCMSBestFit, true, \ | |
1501 "Use CMS best fit allocation strategy") \ | |
1502 \ | |
1503 product(bool, UseCMSCollectionPassing, true, \ | |
1504 "Use passing of collection from background to foreground") \ | |
1505 \ | |
1506 product(bool, UseParNewGC, false, \ | |
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1507 "Use parallel threads in the new generation") \ |
0 | 1508 \ |
1509 product(bool, ParallelGCVerbose, false, \ | |
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1510 "Verbose output for parallel gc") \ |
0 | 1511 \ |
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1512 product(uintx, ParallelGCBufferWastePct, 10, \ |
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1513 "Wasted fraction of parallel allocation buffer") \ |
0 | 1514 \ |
3357
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|
1515 diagnostic(bool, ParallelGCRetainPLAB, false, \ |
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1516 "Retain parallel allocation buffers across scavenges; " \ |
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1517 "it is disabled because this currently conflicts with " \ |
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1518 "parallel card scanning under certain conditions.") \ |
0 | 1519 \ |
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1520 product(uintx, TargetPLABWastePct, 10, \ |
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1521 "Target wasted space in last buffer as percent of overall " \ |
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|
1522 "allocation") \ |
0 | 1523 \ |
1524 product(uintx, PLABWeight, 75, \ | |
14358 | 1525 "Percentage (0-100) used to weight the current sample when " \ |
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1526 "computing exponentially decaying average for ResizePLAB") \ |
0 | 1527 \ |
1528 product(bool, ResizePLAB, true, \ | |
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1529 "Dynamically resize (survivor space) promotion LAB's") \ |
0 | 1530 \ |
1531 product(bool, PrintPLAB, false, \ | |
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1532 "Print (survivor space) promotion LAB's sizing decisions") \ |
0 | 1533 \ |
1534 product(intx, ParGCArrayScanChunk, 50, \ | |
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1535 "Scan a subset of object array and push remainder, if array is " \ |
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1536 "bigger than this") \ |
0 | 1537 \ |
695 | 1538 product(bool, ParGCUseLocalOverflow, false, \ |
1539 "Instead of a global overflow list, use local overflow stacks") \ | |
1540 \ | |
679
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1541 product(bool, ParGCTrimOverflow, true, \ |
12836
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1542 "Eagerly trim the local overflow lists " \ |
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1543 "(when ParGCUseLocalOverflow)") \ |
679
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1544 \ |
534 | 1545 notproduct(bool, ParGCWorkQueueOverflowALot, false, \ |
12836
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1546 "Simulate work queue overflow in ParNew") \ |
534 | 1547 \ |
1548 notproduct(uintx, ParGCWorkQueueOverflowInterval, 1000, \ | |
1064 | 1549 "An `interval' counter that determines how frequently " \ |
1550 "we simulate overflow; a smaller number increases frequency") \ | |
534 | 1551 \ |
1552 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \ | |
0 | 1553 "The desired number of objects to claim from the overflow list") \ |
1554 \ | |
4728
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1555 diagnostic(uintx, ParGCStridesPerThread, 2, \ |
3357
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|
1556 "The number of strides per worker thread that we divide up the " \ |
fc2b798ab316
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1557 "card table scanning work into") \ |
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1558 \ |
fc2b798ab316
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1559 diagnostic(intx, ParGCCardsPerStrideChunk, 256, \ |
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1560 "The number of cards in each chunk of the parallel chunks used " \ |
fc2b798ab316
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|
1561 "during card table scanning") \ |
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1562 \ |
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1563 product(uintx, CMSParPromoteBlocksToClaim, 16, \ |
12836
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1564 "Number of blocks to attempt to claim when refilling CMS LAB's " \ |
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1565 "for parallel GC") \ |
0 | 1566 \ |
1145
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1567 product(uintx, OldPLABWeight, 50, \ |
12836
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1568 "Percentage (0-100) used to weight the current sample when " \ |
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1569 "computing exponentially decaying average for resizing " \ |
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1570 "CMSParPromoteBlocksToClaim") \ |
1145
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1571 \ |
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1572 product(bool, ResizeOldPLAB, true, \ |
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1573 "Dynamically resize (old gen) promotion LAB's") \ |
1145
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1574 \ |
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1575 product(bool, PrintOldPLAB, false, \ |
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1576 "Print (old gen) promotion LAB's sizing decisions") \ |
1145
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1577 \ |
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1578 product(uintx, CMSOldPLABMin, 16, \ |
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1579 "Minimum size of CMS gen promotion LAB caches per worker " \ |
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1580 "per block size") \ |
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1581 \ |
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1582 product(uintx, CMSOldPLABMax, 1024, \ |
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1583 "Maximum size of CMS gen promotion LAB caches per worker " \ |
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1584 "per block size") \ |
1145
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1585 \ |
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1586 product(uintx, CMSOldPLABNumRefills, 4, \ |
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1587 "Nominal number of refills of CMS gen promotion LAB cache " \ |
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1588 "per worker per block size") \ |
1145
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1589 \ |
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1590 product(bool, CMSOldPLABResizeQuicker, false, \ |
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1591 "React on-the-fly during a scavenge to a sudden " \ |
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1592 "change in block demand rate") \ |
1145
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1593 \ |
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1594 product(uintx, CMSOldPLABToleranceFactor, 4, \ |
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1595 "The tolerance of the phase-change detector for on-the-fly " \ |
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1596 "PLAB resizing during a scavenge") \ |
1145
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1597 \ |
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1598 product(uintx, CMSOldPLABReactivityFactor, 2, \ |
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1599 "The gain in the feedback loop for on-the-fly PLAB resizing " \ |
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1600 "during a scavenge") \ |
1145
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1601 \ |
0 | 1602 product(bool, AlwaysPreTouch, false, \ |
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1603 "Force all freshly committed pages to be pre-touched") \ |
0 | 1604 \ |
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1605 product_pd(uintx, CMSYoungGenPerWorker, \ |
2368
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1606 "The maximum size of young gen chosen by default per GC worker " \ |
1064 | 1607 "thread available") \ |
0 | 1608 \ |
1609 product(bool, CMSIncrementalMode, false, \ | |
1610 "Whether CMS GC should operate in \"incremental\" mode") \ | |
1611 \ | |
1612 product(uintx, CMSIncrementalDutyCycle, 10, \ | |
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1613 "Percentage (0-100) of CMS incremental mode duty cycle. If " \ |
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1614 "CMSIncrementalPacing is enabled, then this is just the initial " \ |
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1615 "value.") \ |
0 | 1616 \ |
1617 product(bool, CMSIncrementalPacing, true, \ | |
1618 "Whether the CMS incremental mode duty cycle should be " \ | |
1619 "automatically adjusted") \ | |
1620 \ | |
1621 product(uintx, CMSIncrementalDutyCycleMin, 0, \ | |
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1622 "Minimum percentage (0-100) of the CMS incremental duty cycle " \ |
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1623 "used when CMSIncrementalPacing is enabled") \ |
0 | 1624 \ |
1625 product(uintx, CMSIncrementalSafetyFactor, 10, \ | |
1064 | 1626 "Percentage (0-100) used to add conservatism when computing the " \ |
1627 "duty cycle") \ | |
0 | 1628 \ |
1629 product(uintx, CMSIncrementalOffset, 0, \ | |
12836
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1630 "Percentage (0-100) by which the CMS incremental mode duty cycle "\ |
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1631 "is shifted to the right within the period between young GCs") \ |
0 | 1632 \ |
1145
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1633 product(uintx, CMSExpAvgFactor, 50, \ |
14358 | 1634 "Percentage (0-100) used to weight the current sample when " \ |
12836
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1635 "computing exponential averages for CMS statistics") \ |
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1636 \ |
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1637 product(uintx, CMS_FLSWeight, 75, \ |
14358 | 1638 "Percentage (0-100) used to weight the current sample when " \ |
12836
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1639 "computing exponentially decaying averages for CMS FLS " \ |
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1640 "statistics") \ |
1145
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1641 \ |
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1642 product(uintx, CMS_FLSPadding, 1, \ |
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1643 "The multiple of deviation from mean to use for buffering " \ |
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1644 "against volatility in free list demand") \ |
0 | 1645 \ |
1646 product(uintx, FLSCoalescePolicy, 2, \ | |
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1647 "CMS: aggressiveness level for coalescing, increasing " \ |
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1648 "from 0 to 4") \ |
0 | 1649 \ |
1145
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1650 product(bool, FLSAlwaysCoalesceLarge, false, \ |
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1651 "CMS: larger free blocks are always available for coalescing") \ |
1145
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1652 \ |
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1653 product(double, FLSLargestBlockCoalesceProximity, 0.99, \ |
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1654 "CMS: the smaller the percentage the greater the coalescing " \ |
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1655 "force") \ |
1145
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1656 \ |
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1657 product(double, CMSSmallCoalSurplusPercent, 1.05, \ |
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1658 "CMS: the factor by which to inflate estimated demand of small " \ |
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1659 "block sizes to prevent coalescing with an adjoining block") \ |
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1660 \ |
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1661 product(double, CMSLargeCoalSurplusPercent, 0.95, \ |
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1662 "CMS: the factor by which to inflate estimated demand of large " \ |
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1663 "block sizes to prevent coalescing with an adjoining block") \ |
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1664 \ |
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1665 product(double, CMSSmallSplitSurplusPercent, 1.10, \ |
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1666 "CMS: the factor by which to inflate estimated demand of small " \ |
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1667 "block sizes to prevent splitting to supply demand for smaller " \ |
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1668 "blocks") \ |
1145
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1669 \ |
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1670 product(double, CMSLargeSplitSurplusPercent, 1.00, \ |
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1671 "CMS: the factor by which to inflate estimated demand of large " \ |
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1672 "block sizes to prevent splitting to supply demand for smaller " \ |
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1673 "blocks") \ |
1145
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1674 \ |
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1675 product(bool, CMSExtrapolateSweep, false, \ |
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|
1676 "CMS: cushion for block demand during sweep") \ |
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|
1677 \ |
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1678 product(uintx, CMS_SweepWeight, 75, \ |
1064 | 1679 "Percentage (0-100) used to weight the current sample when " \ |
1680 "computing exponentially decaying average for inter-sweep " \ | |
1681 "duration") \ | |
0 | 1682 \ |
1145
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1683 product(uintx, CMS_SweepPadding, 1, \ |
1064 | 1684 "The multiple of deviation from mean to use for buffering " \ |
12836
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1685 "against volatility in inter-sweep duration") \ |
0 | 1686 \ |
1687 product(uintx, CMS_SweepTimerThresholdMillis, 10, \ | |
1688 "Skip block flux-rate sampling for an epoch unless inter-sweep " \ | |
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1689 "duration exceeds this threshold in milliseconds") \ |
0 | 1690 \ |
1691 develop(bool, CMSTraceIncrementalMode, false, \ | |
1692 "Trace CMS incremental mode") \ | |
1693 \ | |
1694 develop(bool, CMSTraceIncrementalPacing, false, \ | |
1695 "Trace CMS incremental mode pacing computation") \ | |
1696 \ | |
1697 develop(bool, CMSTraceThreadState, false, \ | |
1698 "Trace the CMS thread state (enable the trace_state() method)") \ | |
1699 \ | |
7454
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1700 product(bool, CMSClassUnloadingEnabled, true, \ |
0 | 1701 "Whether class unloading enabled when using CMS GC") \ |
1702 \ | |
94
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1703 product(uintx, CMSClassUnloadingMaxInterval, 0, \ |
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1704 "When CMS class unloading is enabled, the maximum CMS cycle " \ |
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1705 "count for which classes may not be unloaded") \ |
94
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|
1706 \ |
0 | 1707 product(bool, CMSCompactWhenClearAllSoftRefs, true, \ |
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1708 "Compact when asked to collect CMS gen with " \ |
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1709 "clear_all_soft_refs()") \ |
0 | 1710 \ |
1711 product(bool, UseCMSCompactAtFullCollection, true, \ | |
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1712 "Use Mark-Sweep-Compact algorithm at full collections") \ |
0 | 1713 \ |
1714 product(uintx, CMSFullGCsBeforeCompaction, 0, \ | |
1715 "Number of CMS full collection done before compaction if > 0") \ | |
1716 \ | |
1717 develop(intx, CMSDictionaryChoice, 0, \ | |
1718 "Use BinaryTreeDictionary as default in the CMS generation") \ | |
1719 \ | |
1720 product(uintx, CMSIndexedFreeListReplenish, 4, \ | |
6818 | 1721 "Replenish an indexed free list with this number of chunks") \ |
0 | 1722 \ |
1145
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1723 product(bool, CMSReplenishIntermediate, true, \ |
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1724 "Replenish all intermediate free-list caches") \ |
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1725 \ |
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1726 product(bool, CMSSplitIndexedFreeListBlocks, true, \ |
1777
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1727 "When satisfying batched demand, split blocks from the " \ |
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1728 "IndexedFreeList whose size is a multiple of requested size") \ |
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1729 \ |
0 | 1730 product(bool, CMSLoopWarn, false, \ |
1731 "Warn in case of excessive CMS looping") \ | |
1732 \ | |
1733 develop(bool, CMSOverflowEarlyRestoration, false, \ | |
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1734 "Restore preserved marks early") \ |
0 | 1735 \ |
1284 | 1736 product(uintx, MarkStackSize, NOT_LP64(32*K) LP64_ONLY(4*M), \ |
1737 "Size of marking stack") \ | |
1738 \ | |
1739 product(uintx, MarkStackSizeMax, NOT_LP64(4*M) LP64_ONLY(512*M), \ | |
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1740 "Maximum size of marking stack") \ |
0 | 1741 \ |
1742 notproduct(bool, CMSMarkStackOverflowALot, false, \ | |
12836
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1743 "Simulate frequent marking stack / work queue overflow") \ |
0 | 1744 \ |
534 | 1745 notproduct(uintx, CMSMarkStackOverflowInterval, 1000, \ |
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1746 "An \"interval\" counter that determines how frequently " \ |
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1747 "to simulate overflow; a smaller number increases frequency") \ |
0 | 1748 \ |
1749 product(uintx, CMSMaxAbortablePrecleanLoops, 0, \ | |
1750 "Maximum number of abortable preclean iterations, if > 0") \ | |
1751 \ | |
1752 product(intx, CMSMaxAbortablePrecleanTime, 5000, \ | |
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1753 "Maximum time in abortable preclean (in milliseconds)") \ |
0 | 1754 \ |
1755 product(uintx, CMSAbortablePrecleanMinWorkPerIteration, 100, \ | |
1756 "Nominal minimum work per abortable preclean iteration") \ | |
1757 \ | |
1887
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1758 manageable(intx, CMSAbortablePrecleanWaitMillis, 100, \ |
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1759 "Time that we sleep between iterations when not given " \ |
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1760 "enough work per iteration") \ |
0 | 1761 \ |
1762 product(uintx, CMSRescanMultiple, 32, \ | |
1763 "Size (in cards) of CMS parallel rescan task") \ | |
1764 \ | |
1765 product(uintx, CMSConcMarkMultiple, 32, \ | |
1766 "Size (in cards) of CMS concurrent MT marking task") \ | |
1767 \ | |
1768 product(bool, CMSAbortSemantics, false, \ | |
1769 "Whether abort-on-overflow semantics is implemented") \ | |
1770 \ | |
11975 | 1771 product(bool, CMSParallelInitialMarkEnabled, true, \ |
1772 "Use the parallel initial mark.") \ | |
1773 \ | |
0 | 1774 product(bool, CMSParallelRemarkEnabled, true, \ |
1775 "Whether parallel remark enabled (only if ParNewGC)") \ | |
1776 \ | |
1777 product(bool, CMSParallelSurvivorRemarkEnabled, true, \ | |
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1778 "Whether parallel remark of survivor space " \ |
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1779 "enabled (effective only if CMSParallelRemarkEnabled)") \ |
0 | 1780 \ |
1781 product(bool, CMSPLABRecordAlways, true, \ | |
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1782 "Always record survivor space PLAB boundaries (effective only " \ |
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1783 "if CMSParallelSurvivorRemarkEnabled)") \ |
0 | 1784 \ |
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1785 product(bool, CMSEdenChunksRecordAlways, true, \ |
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1786 "Always record eden chunks used for the parallel initial mark " \ |
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1787 "or remark of eden") \ |
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1788 \ |
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1789 product(bool, CMSPrintEdenSurvivorChunks, false, \ |
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1790 "Print the eden and the survivor chunks used for the parallel " \ |
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1791 "initial mark or remark of the eden/survivor spaces") \ |
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1792 \ |
0 | 1793 product(bool, CMSConcurrentMTEnabled, true, \ |
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1794 "Whether multi-threaded concurrent work enabled " \ |
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1795 "(effective only if ParNewGC)") \ |
0 | 1796 \ |
1797 product(bool, CMSPrecleaningEnabled, true, \ | |
1798 "Whether concurrent precleaning enabled") \ | |
1799 \ | |
1800 product(uintx, CMSPrecleanIter, 3, \ | |
1801 "Maximum number of precleaning iteration passes") \ | |
1802 \ | |
1803 product(uintx, CMSPrecleanNumerator, 2, \ | |
12836
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1804 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \ |
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1805 "ratio") \ |
0 | 1806 \ |
1807 product(uintx, CMSPrecleanDenominator, 3, \ | |
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1808 "CMSPrecleanNumerator:CMSPrecleanDenominator yields convergence " \ |
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|
1809 "ratio") \ |
0 | 1810 \ |
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1811 product(bool, CMSPrecleanRefLists1, true, \ |
0 | 1812 "Preclean ref lists during (initial) preclean phase") \ |
1813 \ | |
1814 product(bool, CMSPrecleanRefLists2, false, \ | |
1815 "Preclean ref lists during abortable preclean phase") \ | |
1816 \ | |
1817 product(bool, CMSPrecleanSurvivors1, false, \ | |
1818 "Preclean survivors during (initial) preclean phase") \ | |
1819 \ | |
1820 product(bool, CMSPrecleanSurvivors2, true, \ | |
1821 "Preclean survivors during abortable preclean phase") \ | |
1822 \ | |
1823 product(uintx, CMSPrecleanThreshold, 1000, \ | |
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1824 "Do not iterate again if number of dirty cards is less than this")\ |
0 | 1825 \ |
1826 product(bool, CMSCleanOnEnter, true, \ | |
1827 "Clean-on-enter optimization for reducing number of dirty cards") \ | |
1828 \ | |
1829 product(uintx, CMSRemarkVerifyVariant, 1, \ | |
1830 "Choose variant (1,2) of verification following remark") \ | |
1831 \ | |
1832 product(uintx, CMSScheduleRemarkEdenSizeThreshold, 2*M, \ | |
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1833 "If Eden size is below this, do not try to schedule remark") \ |
0 | 1834 \ |
1835 product(uintx, CMSScheduleRemarkEdenPenetration, 50, \ | |
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1836 "The Eden occupancy percentage (0-100) at which " \ |
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1837 "to try and schedule remark pause") \ |
0 | 1838 \ |
1839 product(uintx, CMSScheduleRemarkSamplingRatio, 5, \ | |
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1840 "Start sampling eden top at least before young gen " \ |
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1841 "occupancy reaches 1/<ratio> of the size at which " \ |
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1842 "we plan to schedule remark") \ |
0 | 1843 \ |
1844 product(uintx, CMSSamplingGrain, 16*K, \ | |
1845 "The minimum distance between eden samples for CMS (see above)") \ | |
1846 \ | |
1847 product(bool, CMSScavengeBeforeRemark, false, \ | |
1848 "Attempt scavenge before the CMS remark step") \ | |
1849 \ | |
1850 develop(bool, CMSTraceSweeper, false, \ | |
1851 "Trace some actions of the CMS sweeper") \ | |
1852 \ | |
1853 product(uintx, CMSWorkQueueDrainThreshold, 10, \ | |
1854 "Don't drain below this size per parallel worker/thief") \ | |
1855 \ | |
1887
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1856 manageable(intx, CMSWaitDuration, 2000, \ |
0 | 1857 "Time in milliseconds that CMS thread waits for young GC") \ |
1858 \ | |
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1859 develop(uintx, CMSCheckInterval, 1000, \ |
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1860 "Interval in milliseconds that CMS thread checks if it " \ |
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1861 "should start a collection cycle") \ |
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1862 \ |
0 | 1863 product(bool, CMSYield, true, \ |
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1864 "Yield between steps of CMS") \ |
0 | 1865 \ |
1866 product(uintx, CMSBitMapYieldQuantum, 10*M, \ | |
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1867 "Bitmap operations should process at most this many bits " \ |
0 | 1868 "between yields") \ |
1869 \ | |
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1870 product(bool, CMSDumpAtPromotionFailure, false, \ |
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1871 "Dump useful information about the state of the CMS old " \ |
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1872 "generation upon a promotion failure") \ |
1145
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1873 \ |
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1874 product(bool, CMSPrintChunksInDump, false, \ |
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1875 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1876 "more detailed information about the free chunks") \ |
1145
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1877 \ |
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1878 product(bool, CMSPrintObjectsInDump, false, \ |
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1879 "In a dump enabled by CMSDumpAtPromotionFailure, include " \ |
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1880 "more detailed information about the allocated objects") \ |
1145
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1881 \ |
0 | 1882 diagnostic(bool, FLSVerifyAllHeapReferences, false, \ |
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1883 "Verify that all references across the FLS boundary " \ |
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1884 "are to valid objects") \ |
0 | 1885 \ |
1886 diagnostic(bool, FLSVerifyLists, false, \ | |
1887 "Do lots of (expensive) FreeListSpace verification") \ | |
1888 \ | |
1889 diagnostic(bool, FLSVerifyIndexTable, false, \ | |
1890 "Do lots of (expensive) FLS index table verification") \ | |
1891 \ | |
1892 develop(bool, FLSVerifyDictionary, false, \ | |
1893 "Do lots of (expensive) FLS dictionary verification") \ | |
1894 \ | |
1895 develop(bool, VerifyBlockOffsetArray, false, \ | |
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1896 "Do (expensive) block offset array verification") \ |
0 | 1897 \ |
3321
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|
1898 diagnostic(bool, BlockOffsetArrayUseUnallocatedBlock, false, \ |
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1899 "Maintain _unallocated_block in BlockOffsetArray " \ |
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1900 "(currently applicable only to CMS collector)") \ |
0 | 1901 \ |
1902 develop(bool, TraceCMSState, false, \ | |
1903 "Trace the state of the CMS collection") \ | |
1904 \ | |
1905 product(intx, RefDiscoveryPolicy, 0, \ | |
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1906 "Select type of reference discovery policy: " \ |
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1907 "reference-based(0) or referent-based(1)") \ |
0 | 1908 \ |
1909 product(bool, ParallelRefProcEnabled, false, \ | |
1910 "Enable parallel reference processing whenever possible") \ | |
1911 \ | |
1912 product(bool, ParallelRefProcBalancingEnabled, true, \ | |
1913 "Enable balancing of reference processing queues") \ | |
1914 \ | |
8035 | 1915 product(uintx, CMSTriggerRatio, 80, \ |
0 | 1916 "Percentage of MinHeapFreeRatio in CMS generation that is " \ |
1064 | 1917 "allocated before a CMS collection cycle commences") \ |
0 | 1918 \ |
94
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1919 product(uintx, CMSBootstrapOccupancy, 50, \ |
0 | 1920 "Percentage CMS generation occupancy at which to " \ |
1064 | 1921 "initiate CMS collection for bootstrapping collection stats") \ |
0 | 1922 \ |
1923 product(intx, CMSInitiatingOccupancyFraction, -1, \ | |
1924 "Percentage CMS generation occupancy to start a CMS collection " \ | |
1064 | 1925 "cycle. A negative value means that CMSTriggerRatio is used") \ |
94
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1926 \ |
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1927 product(uintx, InitiatingHeapOccupancyPercent, 45, \ |
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1928 "Percentage of the (entire) heap occupancy to start a " \ |
8034
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1929 "concurrent GC cycle. It is used by GCs that trigger a " \ |
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1930 "concurrent GC cycle based on the occupancy of the entire heap, " \ |
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1931 "not just one of the generations (e.g., G1). A value of 0 " \ |
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|
1932 "denotes 'do constant GC cycles'.") \ |
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1933 \ |
0 | 1934 product(bool, UseCMSInitiatingOccupancyOnly, false, \ |
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1935 "Only use occupancy as a criterion for starting a CMS collection")\ |
0 | 1936 \ |
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1937 product(uintx, CMSIsTooFullPercentage, 98, \ |
1064 | 1938 "An absolute ceiling above which CMS will always consider the " \ |
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1939 "unloading of classes when class unloading is enabled") \ |
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1940 \ |
0 | 1941 develop(bool, CMSTestInFreeList, false, \ |
1942 "Check if the coalesced range is already in the " \ | |
1064 | 1943 "free lists as claimed") \ |
0 | 1944 \ |
1945 notproduct(bool, CMSVerifyReturnedBytes, false, \ | |
1946 "Check that all the garbage collected was returned to the " \ | |
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1947 "free lists") \ |
0 | 1948 \ |
1949 notproduct(bool, ScavengeALot, false, \ | |
1950 "Force scavenge at every Nth exit from the runtime system " \ | |
1951 "(N=ScavengeALotInterval)") \ | |
1952 \ | |
1953 develop(bool, FullGCALot, false, \ | |
1954 "Force full gc at every Nth exit from the runtime system " \ | |
1955 "(N=FullGCALotInterval)") \ | |
1956 \ | |
1957 notproduct(bool, GCALotAtAllSafepoints, false, \ | |
1958 "Enforce ScavengeALot/GCALot at all potential safepoints") \ | |
1959 \ | |
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1960 product(bool, PrintPromotionFailure, false, \ |
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1961 "Print additional diagnostic information following " \ |
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1962 "promotion failure") \ |
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1963 \ |
0 | 1964 notproduct(bool, PromotionFailureALot, false, \ |
1965 "Use promotion failure handling on every youngest generation " \ | |
1966 "collection") \ | |
1967 \ | |
1968 develop(uintx, PromotionFailureALotCount, 1000, \ | |
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1969 "Number of promotion failures occurring at ParGCAllocBuffer " \ |
0 | 1970 "refill attempts (ParNew) or promotion attempts " \ |
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1971 "(other young collectors)") \ |
0 | 1972 \ |
1973 develop(uintx, PromotionFailureALotInterval, 5, \ | |
14358 | 1974 "Total collections between promotion failures a lot") \ |
0 | 1975 \ |
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1976 experimental(uintx, WorkStealingSleepMillis, 1, \ |
0 | 1977 "Sleep time when sleep is used for yields") \ |
1978 \ | |
2430 | 1979 experimental(uintx, WorkStealingYieldsBeforeSleep, 5000, \ |
14358 | 1980 "Number of yields before a sleep is done during work stealing") \ |
0 | 1981 \ |
1837
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1982 experimental(uintx, WorkStealingHardSpins, 4096, \ |
546
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1983 "Number of iterations in a spin loop between checks on " \ |
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1984 "time out of hard spin") \ |
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1985 \ |
1837
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1986 experimental(uintx, WorkStealingSpinToYieldRatio, 10, \ |
546
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1987 "Ratio of hard spins to calls to yield") \ |
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|
1988 \ |
1311
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|
1989 develop(uintx, ObjArrayMarkingStride, 512, \ |
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1990 "Number of object array elements to push onto the marking stack " \ |
1311
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|
1991 "before pushing a continuation entry") \ |
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|
1992 \ |
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1993 develop(bool, MetadataAllocationFailALot, false, \ |
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1994 "Fail metadata allocations at intervals controlled by " \ |
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1995 "MetadataAllocationFailALotInterval") \ |
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1996 \ |
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1997 develop(uintx, MetadataAllocationFailALotInterval, 1000, \ |
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1998 "Metadata allocation failure a lot interval") \ |
6725
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1999 \ |
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2000 develop(bool, TraceMetadataChunkAllocation, false, \ |
7461
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2001 "Trace chunk metadata allocations") \ |
6725
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2002 \ |
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2003 product(bool, TraceMetadataHumongousAllocation, false, \ |
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2004 "Trace humongous metadata allocations") \ |
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|
2005 \ |
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|
2006 develop(bool, TraceMetavirtualspaceAllocation, false, \ |
7461
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2007 "Trace virtual space metadata allocations") \ |
6725
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2008 \ |
3779 | 2009 notproduct(bool, ExecuteInternalVMTests, false, \ |
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|
2010 "Enable execution of internal VM tests") \ |
3779 | 2011 \ |
12110
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|
2012 notproduct(bool, VerboseInternalVMTests, false, \ |
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|
2013 "Turn on logging for internal VM tests.") \ |
4c84d351cca9
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|
2014 \ |
0 | 2015 product_pd(bool, UseTLAB, "Use thread-local object allocation") \ |
2016 \ | |
2017 product_pd(bool, ResizeTLAB, \ | |
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|
2018 "Dynamically resize TLAB size for threads") \ |
0 | 2019 \ |
2020 product(bool, ZeroTLAB, false, \ | |
2021 "Zero out the newly created TLAB") \ | |
2022 \ | |
342
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|
2023 product(bool, FastTLABRefill, true, \ |
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|
2024 "Use fast TLAB refill code") \ |
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|
2025 \ |
0 | 2026 product(bool, PrintTLAB, false, \ |
2027 "Print various TLAB related information") \ | |
2028 \ | |
2029 product(bool, TLABStats, true, \ | |
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2030 "Provide more detailed and expensive TLAB statistics " \ |
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2031 "(with PrintTLAB)") \ |
0 | 2032 \ |
2192
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diff
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|
2033 EMBEDDED_ONLY(product(bool, LowMemoryProtection, true, \ |
b92c45f2bc75
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bobv
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2177
diff
changeset
|
2034 "Enable LowMemoryProtection")) \ |
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|
2035 \ |
0 | 2036 product_pd(bool, NeverActAsServerClassMachine, \ |
2037 "Never act like a server-class machine") \ | |
2038 \ | |
2039 product(bool, AlwaysActAsServerClassMachine, false, \ | |
2040 "Always act like a server-class machine") \ | |
2041 \ | |
1064 | 2042 product_pd(uint64_t, MaxRAM, \ |
2043 "Real memory size (in bytes) used to set maximum heap size") \ | |
2044 \ | |
2045 product(uintx, ErgoHeapSizeLimit, 0, \ | |
2046 "Maximum ergonomically set heap size (in bytes); zero means use " \ | |
2047 "MaxRAM / MaxRAMFraction") \ | |
2048 \ | |
2049 product(uintx, MaxRAMFraction, 4, \ | |
2050 "Maximum fraction (1/n) of real memory used for maximum heap " \ | |
2051 "size") \ | |
0 | 2052 \ |
2053 product(uintx, DefaultMaxRAMFraction, 4, \ | |
1064 | 2054 "Maximum fraction (1/n) of real memory used for maximum heap " \ |
2055 "size; deprecated: to be renamed to MaxRAMFraction") \ | |
2056 \ | |
2057 product(uintx, MinRAMFraction, 2, \ | |
14358 | 2058 "Minimum fraction (1/n) of real memory used for maximum heap " \ |
1064 | 2059 "size on systems with small physical memory size") \ |
2060 \ | |
2061 product(uintx, InitialRAMFraction, 64, \ | |
2062 "Fraction (1/n) of real memory used for initial heap size") \ | |
0 | 2063 \ |
8854
754c24457b20
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|
2064 develop(uintx, MaxVirtMemFraction, 2, \ |
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|
2065 "Maximum fraction (1/n) of virtual memory used for ergonomically "\ |
8854
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|
2066 "determining maximum heap size") \ |
754c24457b20
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|
2067 \ |
0 | 2068 product(bool, UseAutoGCSelectPolicy, false, \ |
2069 "Use automatic collection selection policy") \ | |
2070 \ | |
2071 product(uintx, AutoGCSelectPauseMillis, 5000, \ | |
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|
2072 "Automatic GC selection pause threshold in milliseconds") \ |
0 | 2073 \ |
2074 product(bool, UseAdaptiveSizePolicy, true, \ | |
2075 "Use adaptive generation sizing policies") \ | |
2076 \ | |
2077 product(bool, UsePSAdaptiveSurvivorSizePolicy, true, \ | |
2078 "Use adaptive survivor sizing policies") \ | |
2079 \ | |
2080 product(bool, UseAdaptiveGenerationSizePolicyAtMinorCollection, true, \ | |
2081 "Use adaptive young-old sizing policies at minor collections") \ | |
2082 \ | |
2083 product(bool, UseAdaptiveGenerationSizePolicyAtMajorCollection, true, \ | |
2084 "Use adaptive young-old sizing policies at major collections") \ | |
2085 \ | |
2086 product(bool, UseAdaptiveSizePolicyWithSystemGC, false, \ | |
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|
2087 "Include statistics from System.gc() for adaptive size policy") \ |
0 | 2088 \ |
2089 product(bool, UseAdaptiveGCBoundary, false, \ | |
2090 "Allow young-old boundary to move") \ | |
2091 \ | |
2092 develop(bool, TraceAdaptiveGCBoundary, false, \ | |
2093 "Trace young-old boundary moves") \ | |
2094 \ | |
2095 develop(intx, PSAdaptiveSizePolicyResizeVirtualSpaceAlot, -1, \ | |
2096 "Resize the virtual spaces of the young or old generations") \ | |
2097 \ | |
2098 product(uintx, AdaptiveSizeThroughPutPolicy, 0, \ | |
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|
2099 "Policy for changing generation size for throughput goals") \ |
0 | 2100 \ |
2101 product(uintx, AdaptiveSizePausePolicy, 0, \ | |
2102 "Policy for changing generation size for pause goals") \ | |
2103 \ | |
2104 develop(bool, PSAdjustTenuredGenForMinorPause, false, \ | |
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|
2105 "Adjust tenured generation to achieve a minor pause goal") \ |
0 | 2106 \ |
2107 develop(bool, PSAdjustYoungGenForMajorPause, false, \ | |
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|
2108 "Adjust young generation to achieve a major pause goal") \ |
0 | 2109 \ |
2110 product(uintx, AdaptiveSizePolicyInitializingSteps, 20, \ | |
2111 "Number of steps where heuristics is used before data is used") \ | |
2112 \ | |
2113 develop(uintx, AdaptiveSizePolicyReadyThreshold, 5, \ | |
2114 "Number of collections before the adaptive sizing is started") \ | |
2115 \ | |
2116 product(uintx, AdaptiveSizePolicyOutputInterval, 0, \ | |
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|
2117 "Collection interval for printing information; zero means never") \ |
0 | 2118 \ |
2119 product(bool, UseAdaptiveSizePolicyFootprintGoal, true, \ | |
2120 "Use adaptive minimum footprint as a goal") \ | |
2121 \ | |
2122 product(uintx, AdaptiveSizePolicyWeight, 10, \ | |
2123 "Weight given to exponential resizing, between 0 and 100") \ | |
2124 \ | |
2125 product(uintx, AdaptiveTimeWeight, 25, \ | |
2126 "Weight given to time in adaptive policy, between 0 and 100") \ | |
2127 \ | |
2128 product(uintx, PausePadding, 1, \ | |
2129 "How much buffer to keep for pause time") \ | |
2130 \ | |
2131 product(uintx, PromotedPadding, 3, \ | |
2132 "How much buffer to keep for promotion failure") \ | |
2133 \ | |
2134 product(uintx, SurvivorPadding, 3, \ | |
2135 "How much buffer to keep for survivor overflow") \ | |
2136 \ | |
2137 product(uintx, ThresholdTolerance, 10, \ | |
2138 "Allowed collection cost difference between generations") \ | |
2139 \ | |
2140 product(uintx, AdaptiveSizePolicyCollectionCostMargin, 50, \ | |
1064 | 2141 "If collection costs are within margin, reduce both by full " \ |
2142 "delta") \ | |
0 | 2143 \ |
2144 product(uintx, YoungGenerationSizeIncrement, 20, \ | |
2145 "Adaptive size percentage change in young generation") \ | |
2146 \ | |
2147 product(uintx, YoungGenerationSizeSupplement, 80, \ | |
2148 "Supplement to YoungedGenerationSizeIncrement used at startup") \ | |
2149 \ | |
2150 product(uintx, YoungGenerationSizeSupplementDecay, 8, \ | |
2151 "Decay factor to YoungedGenerationSizeSupplement") \ | |
2152 \ | |
2153 product(uintx, TenuredGenerationSizeIncrement, 20, \ | |
2154 "Adaptive size percentage change in tenured generation") \ | |
2155 \ | |
2156 product(uintx, TenuredGenerationSizeSupplement, 80, \ | |
2157 "Supplement to TenuredGenerationSizeIncrement used at startup") \ | |
2158 \ | |
2159 product(uintx, TenuredGenerationSizeSupplementDecay, 2, \ | |
2160 "Decay factor to TenuredGenerationSizeIncrement") \ | |
2161 \ | |
6818 | 2162 product(uintx, MaxGCPauseMillis, max_uintx, \ |
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2163 "Adaptive size policy maximum GC pause time goal in millisecond, "\ |
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2164 "or (G1 Only) the maximum GC time per MMU time slice") \ |
751 | 2165 \ |
1610
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changeset
|
2166 product(uintx, GCPauseIntervalMillis, 0, \ |
751 | 2167 "Time slice for MMU specification") \ |
0 | 2168 \ |
2169 product(uintx, MaxGCMinorPauseMillis, max_uintx, \ | |
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|
2170 "Adaptive size policy maximum GC minor pause time goal " \ |
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|
2171 "in millisecond") \ |
0 | 2172 \ |
2173 product(uintx, GCTimeRatio, 99, \ | |
2174 "Adaptive size policy application time to GC time ratio") \ | |
2175 \ | |
2176 product(uintx, AdaptiveSizeDecrementScaleFactor, 4, \ | |
2177 "Adaptive size scale down factor for shrinking") \ | |
2178 \ | |
2179 product(bool, UseAdaptiveSizeDecayMajorGCCost, true, \ | |
2180 "Adaptive size decays the major cost for long major intervals") \ | |
2181 \ | |
2182 product(uintx, AdaptiveSizeMajorGCDecayTimeScale, 10, \ | |
2183 "Time scale over which major costs decay") \ | |
2184 \ | |
2185 product(uintx, MinSurvivorRatio, 3, \ | |
2186 "Minimum ratio of young generation/survivor space size") \ | |
2187 \ | |
2188 product(uintx, InitialSurvivorRatio, 8, \ | |
12899
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parents:
12893
diff
changeset
|
2189 "Initial ratio of young generation/survivor space size") \ |
0 | 2190 \ |
2191 product(uintx, BaseFootPrintEstimate, 256*M, \ | |
2192 "Estimate of footprint other than Java Heap") \ | |
2193 \ | |
2194 product(bool, UseGCOverheadLimit, true, \ | |
2195 "Use policy to limit of proportion of time spent in GC " \ | |
2196 "before an OutOfMemory error is thrown") \ | |
2197 \ | |
2198 product(uintx, GCTimeLimit, 98, \ | |
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|
2199 "Limit of the proportion of time spent in GC before " \ |
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changeset
|
2200 "an OutOfMemoryError is thrown (used with GCHeapFreeLimit)") \ |
0 | 2201 \ |
2202 product(uintx, GCHeapFreeLimit, 2, \ | |
2203 "Minimum percentage of free space after a full GC before an " \ | |
2204 "OutOfMemoryError is thrown (used with GCTimeLimit)") \ | |
2205 \ | |
2206 develop(uintx, AdaptiveSizePolicyGCTimeLimitThreshold, 5, \ | |
2207 "Number of consecutive collections before gc time limit fires") \ | |
2208 \ | |
2209 product(bool, PrintAdaptiveSizePolicy, false, \ | |
2210 "Print information about AdaptiveSizePolicy") \ | |
2211 \ | |
2212 product(intx, PrefetchCopyIntervalInBytes, -1, \ | |
2213 "How far ahead to prefetch destination area (<= 0 means off)") \ | |
2214 \ | |
2215 product(intx, PrefetchScanIntervalInBytes, -1, \ | |
2216 "How far ahead to prefetch scan area (<= 0 means off)") \ | |
2217 \ | |
2218 product(intx, PrefetchFieldsAhead, -1, \ | |
2219 "How many fields ahead to prefetch in oop scan (<= 0 means off)") \ | |
2220 \ | |
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2221 diagnostic(bool, VerifySilently, false, \ |
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2222 "Do not print the verification progress") \ |
10186
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2223 \ |
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2224 diagnostic(bool, VerifyDuringStartup, false, \ |
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2225 "Verify memory system before executing any Java code " \ |
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2226 "during VM initialization") \ |
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2227 \ |
0 | 2228 diagnostic(bool, VerifyBeforeExit, trueInDebug, \ |
2229 "Verify system before exiting") \ | |
2230 \ | |
2231 diagnostic(bool, VerifyBeforeGC, false, \ | |
2232 "Verify memory system before GC") \ | |
2233 \ | |
2234 diagnostic(bool, VerifyAfterGC, false, \ | |
2235 "Verify memory system after GC") \ | |
2236 \ | |
2237 diagnostic(bool, VerifyDuringGC, false, \ | |
2238 "Verify memory system during GC (between phases)") \ | |
2239 \ | |
390 | 2240 diagnostic(bool, GCParallelVerificationEnabled, true, \ |
2241 "Enable parallel memory system verification") \ | |
2242 \ | |
1166 | 2243 diagnostic(bool, DeferInitialCardMark, false, \ |
2244 "When +ReduceInitialCardMarks, explicitly defer any that " \ | |
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2245 "may arise from new_pre_store_barrier") \ |
1166 | 2246 \ |
0 | 2247 diagnostic(bool, VerifyRememberedSets, false, \ |
2248 "Verify GC remembered sets") \ | |
2249 \ | |
2250 diagnostic(bool, VerifyObjectStartArray, true, \ | |
2251 "Verify GC object start array if verify before/after") \ | |
2252 \ | |
2253 product(bool, DisableExplicitGC, false, \ | |
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2254 "Ignore calls to System.gc()") \ |
0 | 2255 \ |
2256 notproduct(bool, CheckMemoryInitialization, false, \ | |
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2257 "Check memory initialization") \ |
0 | 2258 \ |
2259 product(bool, CollectGen0First, false, \ | |
2260 "Collect youngest generation before each full GC") \ | |
2261 \ | |
2262 diagnostic(bool, BindCMSThreadToCPU, false, \ | |
2263 "Bind CMS Thread to CPU if possible") \ | |
2264 \ | |
2265 diagnostic(uintx, CPUForCMSThread, 0, \ | |
2266 "When BindCMSThreadToCPU is true, the CPU to bind CMS thread to") \ | |
2267 \ | |
2268 product(bool, BindGCTaskThreadsToCPUs, false, \ | |
2269 "Bind GCTaskThreads to CPUs if possible") \ | |
2270 \ | |
2271 product(bool, UseGCTaskAffinity, false, \ | |
2272 "Use worker affinity when asking for GCTasks") \ | |
2273 \ | |
2274 product(uintx, ProcessDistributionStride, 4, \ | |
2275 "Stride through processors when distributing processes") \ | |
2276 \ | |
2277 product(uintx, CMSCoordinatorYieldSleepCount, 10, \ | |
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2278 "Number of times the coordinator GC thread will sleep while " \ |
0 | 2279 "yielding before giving up and resuming GC") \ |
2280 \ | |
2281 product(uintx, CMSYieldSleepCount, 0, \ | |
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2282 "Number of times a GC thread (minus the coordinator) " \ |
0 | 2283 "will sleep while yielding before giving up and resuming GC") \ |
2284 \ | |
2285 /* gc tracing */ \ | |
2286 manageable(bool, PrintGC, false, \ | |
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2287 "Print message at garbage collection") \ |
0 | 2288 \ |
2289 manageable(bool, PrintGCDetails, false, \ | |
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2290 "Print more details at garbage collection") \ |
0 | 2291 \ |
2292 manageable(bool, PrintGCDateStamps, false, \ | |
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2293 "Print date stamps at garbage collection") \ |
0 | 2294 \ |
2295 manageable(bool, PrintGCTimeStamps, false, \ | |
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2296 "Print timestamps at garbage collection") \ |
0 | 2297 \ |
2298 product(bool, PrintGCTaskTimeStamps, false, \ | |
2299 "Print timestamps for individual gc worker thread tasks") \ | |
2300 \ | |
2301 develop(intx, ConcGCYieldTimeout, 0, \ | |
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2302 "If non-zero, assert that GC threads yield within this " \ |
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2303 "number of milliseconds") \ |
0 | 2304 \ |
2305 notproduct(bool, TraceMarkSweep, false, \ | |
2306 "Trace mark sweep") \ | |
2307 \ | |
2308 product(bool, PrintReferenceGC, false, \ | |
2309 "Print times spent handling reference objects during GC " \ | |
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2310 "(enabled only when PrintGCDetails)") \ |
0 | 2311 \ |
2312 develop(bool, TraceReferenceGC, false, \ | |
2313 "Trace handling of soft/weak/final/phantom references") \ | |
2314 \ | |
2315 develop(bool, TraceFinalizerRegistration, false, \ | |
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2316 "Trace registration of final references") \ |
0 | 2317 \ |
2318 notproduct(bool, TraceScavenge, false, \ | |
2319 "Trace scavenge") \ | |
2320 \ | |
2321 product_rw(bool, TraceClassLoading, false, \ | |
2322 "Trace all classes loaded") \ | |
2323 \ | |
2324 product(bool, TraceClassLoadingPreorder, false, \ | |
2325 "Trace all classes loaded in order referenced (not loaded)") \ | |
2326 \ | |
2327 product_rw(bool, TraceClassUnloading, false, \ | |
2328 "Trace unloading of classes") \ | |
2329 \ | |
2330 product_rw(bool, TraceLoaderConstraints, false, \ | |
2331 "Trace loader constraints") \ | |
2332 \ | |
6725
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2333 develop(bool, TraceClassLoaderData, false, \ |
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2334 "Trace class loader loader_data lifetime") \ |
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2335 \ |
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2336 product(uintx, InitialBootClassLoaderMetaspaceSize, \ |
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|
2337 NOT_LP64(2200*K) LP64_ONLY(4*M), \ |
6725
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2338 "Initial size of the boot class loader data metaspace") \ |
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2339 \ |
0 | 2340 product(bool, TraceGen0Time, false, \ |
2341 "Trace accumulated time for Gen 0 collection") \ | |
2342 \ | |
2343 product(bool, TraceGen1Time, false, \ | |
2344 "Trace accumulated time for Gen 1 collection") \ | |
2345 \ | |
2346 product(bool, PrintTenuringDistribution, false, \ | |
2347 "Print tenuring age information") \ | |
2348 \ | |
2349 product_rw(bool, PrintHeapAtGC, false, \ | |
2350 "Print heap layout before and after each GC") \ | |
2351 \ | |
838
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2352 product_rw(bool, PrintHeapAtGCExtended, false, \ |
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2353 "Print extended information about the layout of the heap " \ |
838
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|
2354 "when -XX:+PrintHeapAtGC is set") \ |
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|
2355 \ |
0 | 2356 product(bool, PrintHeapAtSIGBREAK, true, \ |
2357 "Print heap layout in response to SIGBREAK") \ | |
2358 \ | |
615
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|
2359 manageable(bool, PrintClassHistogramBeforeFullGC, false, \ |
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|
2360 "Print a class histogram before any major stop-world GC") \ |
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|
2361 \ |
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|
2362 manageable(bool, PrintClassHistogramAfterFullGC, false, \ |
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|
2363 "Print a class histogram after any major stop-world GC") \ |
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|
2364 \ |
0 | 2365 manageable(bool, PrintClassHistogram, false, \ |
2366 "Print a histogram of class instances") \ | |
2367 \ | |
2368 develop(bool, TraceWorkGang, false, \ | |
2369 "Trace activities of work gangs") \ | |
2370 \ | |
2371 product(bool, TraceParallelOldGCTasks, false, \ | |
2372 "Trace multithreaded GC activity") \ | |
2373 \ | |
2374 develop(bool, TraceBlockOffsetTable, false, \ | |
2375 "Print BlockOffsetTable maps") \ | |
2376 \ | |
2377 develop(bool, TraceCardTableModRefBS, false, \ | |
2378 "Print CardTableModRefBS maps") \ | |
2379 \ | |
2380 develop(bool, TraceGCTaskManager, false, \ | |
2381 "Trace actions of the GC task manager") \ | |
2382 \ | |
2383 develop(bool, TraceGCTaskQueue, false, \ | |
2384 "Trace actions of the GC task queues") \ | |
2385 \ | |
6818 | 2386 diagnostic(bool, TraceGCTaskThread, false, \ |
0 | 2387 "Trace actions of the GC task threads") \ |
2388 \ | |
2389 product(bool, PrintParallelOldGCPhaseTimes, false, \ | |
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2390 "Print the time taken by each phase in ParallelOldGC " \ |
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|
2391 "(PrintGCDetails must also be enabled)") \ |
0 | 2392 \ |
2393 develop(bool, TraceParallelOldGCMarkingPhase, false, \ | |
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2394 "Trace marking phase in ParallelOldGC") \ |
0 | 2395 \ |
2396 develop(bool, TraceParallelOldGCSummaryPhase, false, \ | |
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2397 "Trace summary phase in ParallelOldGC") \ |
0 | 2398 \ |
2399 develop(bool, TraceParallelOldGCCompactionPhase, false, \ | |
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|
2400 "Trace compaction phase in ParallelOldGC") \ |
0 | 2401 \ |
2402 develop(bool, TraceParallelOldGCDensePrefix, false, \ | |
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2403 "Trace dense prefix computation for ParallelOldGC") \ |
0 | 2404 \ |
2405 develop(bool, IgnoreLibthreadGPFault, false, \ | |
2406 "Suppress workaround for libthread GP fault") \ | |
2407 \ | |
139
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diff
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|
2408 product(bool, PrintJNIGCStalls, false, \ |
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|
2409 "Print diagnostic message when GC is stalled " \ |
139
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diff
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|
2410 "by JNI critical section") \ |
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diff
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|
2411 \ |
10405 | 2412 experimental(double, ObjectCountCutOffPercent, 0.5, \ |
2413 "The percentage of the used heap that the instances of a class " \ | |
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|
2414 "must occupy for the class to generate a trace event") \ |
10405 | 2415 \ |
3767
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|
2416 /* GC log rotation setting */ \ |
2a241e764894
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|
2417 \ |
2a241e764894
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|
2418 product(bool, UseGCLogFileRotation, false, \ |
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|
2419 "Rotate gclog files (for long running applications). It requires "\ |
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|
2420 "-Xloggc:<filename>") \ |
3767
2a241e764894
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|
2421 \ |
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|
2422 product(uintx, NumberOfGCLogFiles, 0, \ |
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|
2423 "Number of gclog files in rotation " \ |
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|
2424 "(default: 0, no rotation)") \ |
3767
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|
2425 \ |
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|
2426 product(uintx, GCLogFileSize, 0, \ |
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|
2427 "GC log file size (default: 0 bytes, no rotation). " \ |
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|
2428 "It requires UseGCLogFileRotation") \ |
3767
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|
2429 \ |
0 | 2430 /* JVMTI heap profiling */ \ |
2431 \ | |
2432 diagnostic(bool, TraceJVMTIObjectTagging, false, \ | |
2433 "Trace JVMTI object tagging calls") \ | |
2434 \ | |
2435 diagnostic(bool, VerifyBeforeIteration, false, \ | |
2436 "Verify memory system before JVMTI iteration") \ | |
2437 \ | |
2438 /* compiler interface */ \ | |
2439 \ | |
2440 develop(bool, CIPrintCompilerName, false, \ | |
2441 "when CIPrint is active, print the name of the active compiler") \ | |
2442 \ | |
2443 develop(bool, CIPrintCompileQueue, false, \ | |
2444 "display the contents of the compile queue whenever a " \ | |
2445 "compilation is enqueued") \ | |
2446 \ | |
2447 develop(bool, CIPrintRequests, false, \ | |
2448 "display every request for compilation") \ | |
2449 \ | |
2450 product(bool, CITime, false, \ | |
2451 "collect timing information for compilation") \ | |
2452 \ | |
2453 develop(bool, CITimeEach, false, \ | |
2454 "display timing information after each successful compilation") \ | |
2455 \ | |
6843 | 2456 develop(bool, CICountOSR, false, \ |
0 | 2457 "use a separate counter when assigning ids to osr compilations") \ |
2458 \ | |
2459 develop(bool, CICompileNatives, true, \ | |
2460 "compile native methods if supported by the compiler") \ | |
2461 \ | |
2462 develop_pd(bool, CICompileOSR, \ | |
2463 "compile on stack replacement methods if supported by the " \ | |
2464 "compiler") \ | |
2465 \ | |
2466 develop(bool, CIPrintMethodCodes, false, \ | |
2467 "print method bytecodes of the compiled code") \ | |
2468 \ | |
2469 develop(bool, CIPrintTypeFlow, false, \ | |
2470 "print the results of ciTypeFlow analysis") \ | |
2471 \ | |
2472 develop(bool, CITraceTypeFlow, false, \ | |
2473 "detailed per-bytecode tracing of ciTypeFlow analysis") \ | |
2474 \ | |
2403 | 2475 develop(intx, OSROnlyBCI, -1, \ |
2476 "OSR only at this bci. Negative values mean exclude that bci") \ | |
2477 \ | |
0 | 2478 /* compiler */ \ |
2479 \ | |
2480 product(intx, CICompilerCount, CI_COMPILER_COUNT, \ | |
2481 "Number of compiler threads to run") \ | |
2482 \ | |
2483 product(intx, CompilationPolicyChoice, 0, \ | |
2484 "which compilation policy (0/1)") \ | |
2485 \ | |
2486 develop(bool, UseStackBanging, true, \ | |
2487 "use stack banging for stack overflow checks (required for " \ | |
2488 "proper StackOverflow handling; disable only to measure cost " \ | |
2489 "of stackbanging)") \ | |
2490 \ | |
2491 develop(bool, UseStrictFP, true, \ | |
2492 "use strict fp if modifier strictfp is set") \ | |
2493 \ | |
2494 develop(bool, GenerateSynchronizationCode, true, \ | |
2495 "generate locking/unlocking code for synchronized methods and " \ | |
2496 "monitors") \ | |
2497 \ | |
2498 develop(bool, GenerateCompilerNullChecks, true, \ | |
2499 "Generate explicit null checks for loads/stores/calls") \ | |
2500 \ | |
2501 develop(bool, GenerateRangeChecks, true, \ | |
2502 "Generate range checks for array accesses") \ | |
2503 \ | |
2504 develop_pd(bool, ImplicitNullChecks, \ | |
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|
2505 "Generate code for implicit null checks") \ |
0 | 2506 \ |
14440
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|
2507 product_pd(bool, TrapBasedNullChecks, \ |
41b780b43b74
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2508 "Generate code for null checks that uses a cmp and trap " \ |
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|
2509 "instruction raising SIGTRAP. This is only used if an access to" \ |
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|
2510 "null (+offset) will not raise a SIGSEGV, i.e.," \ |
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|
2511 "ImplicitNullChecks don't work (PPC64).") \ |
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|
2512 \ |
0 | 2513 product(bool, PrintSafepointStatistics, false, \ |
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|
2514 "Print statistics about safepoint synchronization") \ |
0 | 2515 \ |
2516 product(intx, PrintSafepointStatisticsCount, 300, \ | |
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2517 "Total number of safepoint statistics collected " \ |
0 | 2518 "before printing them out") \ |
2519 \ | |
2520 product(intx, PrintSafepointStatisticsTimeout, -1, \ | |
12836
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2521 "Print safepoint statistics only when safepoint takes " \ |
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2522 "more than PrintSafepointSatisticsTimeout in millis") \ |
0 | 2523 \ |
1321
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2524 product(bool, TraceSafepointCleanupTime, false, \ |
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2525 "Print the break down of clean up tasks performed during " \ |
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|
2526 "safepoint") \ |
1321
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|
2527 \ |
0 | 2528 product(bool, Inline, true, \ |
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|
2529 "Enable inlining") \ |
0 | 2530 \ |
2531 product(bool, ClipInlining, true, \ | |
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2532 "Clip inlining if aggregate method exceeds DesiredMethodLimit") \ |
0 | 2533 \ |
2534 develop(bool, UseCHA, true, \ | |
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|
2535 "Enable CHA") \ |
0 | 2536 \ |
2537 product(bool, UseTypeProfile, true, \ | |
2538 "Check interpreter profile for historically monomorphic calls") \ | |
2539 \ | |
2540 notproduct(bool, TimeCompiler, false, \ | |
12836
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2541 "Time the compiler") \ |
0 | 2542 \ |
2543 diagnostic(bool, PrintInlining, false, \ | |
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2544 "Print inlining optimizations") \ |
0 | 2545 \ |
643
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|
2546 product(bool, UsePopCountInstruction, false, \ |
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|
2547 "Use population count instruction") \ |
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|
2548 \ |
0 | 2549 develop(bool, EagerInitialization, false, \ |
2550 "Eagerly initialize classes if possible") \ | |
2551 \ | |
2552 develop(bool, TraceMethodReplacement, false, \ | |
2553 "Print when methods are replaced do to recompilation") \ | |
2554 \ | |
2555 develop(bool, PrintMethodFlushing, false, \ | |
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2556 "Print the nmethods being flushed") \ |
0 | 2557 \ |
14199
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|
2558 diagnostic(bool, PrintMethodFlushingStatistics, false, \ |
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|
2559 "print statistics about method flushing") \ |
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|
2560 \ |
0 | 2561 develop(bool, UseRelocIndex, false, \ |
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2562 "Use an index to speed random access to relocations") \ |
0 | 2563 \ |
2564 develop(bool, StressCodeBuffers, false, \ | |
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2565 "Exercise code buffer expansion and other rare state changes") \ |
0 | 2566 \ |
2567 diagnostic(bool, DebugNonSafepoints, trueInDebug, \ | |
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2568 "Generate extra debugging information for non-safepoints in " \ |
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|
2569 "nmethods") \ |
0 | 2570 \ |
4066 | 2571 product(bool, PrintVMOptions, false, \ |
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2572 "Print flags that appeared on the command line") \ |
0 | 2573 \ |
564 | 2574 product(bool, IgnoreUnrecognizedVMOptions, false, \ |
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|
2575 "Ignore unrecognized VM options") \ |
564 | 2576 \ |
1150 | 2577 product(bool, PrintCommandLineFlags, false, \ |
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2578 "Print flags specified on command line or set by ergonomics") \ |
1150 | 2579 \ |
2580 product(bool, PrintFlagsInitial, false, \ | |
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|
2581 "Print all VM flags before argument processing and exit VM") \ |
1150 | 2582 \ |
2583 product(bool, PrintFlagsFinal, false, \ | |
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|
2584 "Print all VM flags after argument and ergonomic processing") \ |
1150 | 2585 \ |
1768
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|
2586 notproduct(bool, PrintFlagsWithComments, false, \ |
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|
2587 "Print all VM flags with default values and descriptions and " \ |
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|
2588 "exit") \ |
1768
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|
2589 \ |
0 | 2590 diagnostic(bool, SerializeVMOutput, true, \ |
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2591 "Use a mutex to serialize output to tty and LogFile") \ |
0 | 2592 \ |
2593 diagnostic(bool, DisplayVMOutput, true, \ | |
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|
2594 "Display all VM output on the tty, independently of LogVMOutput") \ |
0 | 2595 \ |
12257
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|
2596 diagnostic(bool, LogVMOutput, false, \ |
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|
2597 "Save VM output to LogFile") \ |
0 | 2598 \ |
2599 diagnostic(ccstr, LogFile, NULL, \ | |
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|
2600 "If LogVMOutput or LogCompilation is on, save VM output to " \ |
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|
2601 "this file [default: ./hotspot_pid%p.log] (%p replaced with pid)")\ |
0 | 2602 \ |
2603 product(ccstr, ErrorFile, NULL, \ | |
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|
2604 "If an error occurs, save the error data to this file " \ |
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|
2605 "[default: ./hs_err_pid%p.log] (%p replaced with pid)") \ |
0 | 2606 \ |
2607 product(bool, DisplayVMOutputToStderr, false, \ | |
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|
2608 "If DisplayVMOutput is true, display all VM output to stderr") \ |
0 | 2609 \ |
2610 product(bool, DisplayVMOutputToStdout, false, \ | |
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|
2611 "If DisplayVMOutput is true, display all VM output to stdout") \ |
0 | 2612 \ |
2613 product(bool, UseHeavyMonitors, false, \ | |
2614 "use heavyweight instead of lightweight Java monitors") \ | |
2615 \ | |
6162 | 2616 product(bool, PrintStringTableStatistics, false, \ |
2617 "print statistics about the StringTable and SymbolTable") \ | |
2618 \ | |
12275
63147986a428
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parents:
12190
diff
changeset
|
2619 diagnostic(bool, VerifyStringTableAtExit, false, \ |
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|
2620 "verify StringTable contents at exit") \ |
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|
2621 \ |
0 | 2622 notproduct(bool, PrintSymbolTableSizeHistogram, false, \ |
2623 "print histogram of the symbol table") \ | |
2624 \ | |
2625 notproduct(bool, ExitVMOnVerifyError, false, \ | |
2626 "standard exit from VM if bytecode verify error " \ | |
2627 "(only in debug mode)") \ | |
2628 \ | |
2629 notproduct(ccstr, AbortVMOnException, NULL, \ | |
2630 "Call fatal if this exception is thrown. Example: " \ | |
2631 "java -XX:AbortVMOnException=java.lang.NullPointerException Foo") \ | |
2632 \ | |
1684
66c5dadb4d61
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1660
diff
changeset
|
2633 notproduct(ccstr, AbortVMOnExceptionMessage, NULL, \ |
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1660
diff
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|
2634 "Call fatal if the exception pointed by AbortVMOnException " \ |
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|
2635 "has this message") \ |
1684
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|
2636 \ |
0 | 2637 develop(bool, DebugVtables, false, \ |
2638 "add debugging code to vtable dispatch") \ | |
2639 \ | |
2640 develop(bool, PrintVtables, false, \ | |
2641 "print vtables when printing klass") \ | |
2642 \ | |
2643 notproduct(bool, PrintVtableStats, false, \ | |
2644 "print vtables stats at end of run") \ | |
2645 \ | |
2646 develop(bool, TraceCreateZombies, false, \ | |
2647 "trace creation of zombie nmethods") \ | |
2648 \ | |
2649 notproduct(bool, IgnoreLockingAssertions, false, \ | |
2650 "disable locking assertions (for speed)") \ | |
2651 \ | |
2652 product(bool, RangeCheckElimination, true, \ | |
8860 | 2653 "Eliminate range checks") \ |
0 | 2654 \ |
2655 develop_pd(bool, UncommonNullCast, \ | |
2656 "track occurrences of null in casts; adjust compiler tactics") \ | |
2657 \ | |
2658 develop(bool, TypeProfileCasts, true, \ | |
2659 "treat casts like calls for purposes of type profiling") \ | |
2660 \ | |
2661 develop(bool, DelayCompilationDuringStartup, true, \ | |
2662 "Delay invoking the compiler until main application class is " \ | |
2663 "loaded") \ | |
2664 \ | |
2665 develop(bool, CompileTheWorld, false, \ | |
2666 "Compile all methods in all classes in bootstrap class path " \ | |
2667 "(stress test)") \ | |
2668 \ | |
2669 develop(bool, CompileTheWorldPreloadClasses, true, \ | |
2670 "Preload all classes used by a class before start loading") \ | |
2671 \ | |
1188
99af867dfa05
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diff
changeset
|
2672 notproduct(intx, CompileTheWorldSafepointInterval, 100, \ |
99af867dfa05
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1179
diff
changeset
|
2673 "Force a safepoint every n compiles so sweeper can keep up") \ |
99af867dfa05
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1179
diff
changeset
|
2674 \ |
0 | 2675 develop(bool, FillDelaySlots, true, \ |
2676 "Fill delay slots (on SPARC only)") \ | |
2677 \ | |
2678 develop(bool, TimeLivenessAnalysis, false, \ | |
2679 "Time computation of bytecode liveness analysis") \ | |
2680 \ | |
2681 develop(bool, TraceLivenessGen, false, \ | |
2682 "Trace the generation of liveness analysis information") \ | |
2683 \ | |
2684 notproduct(bool, TraceLivenessQuery, false, \ | |
2685 "Trace queries of liveness analysis information") \ | |
2686 \ | |
2687 notproduct(bool, CollectIndexSetStatistics, false, \ | |
2688 "Collect information about IndexSets") \ | |
2689 \ | |
2690 develop(bool, UseLoopSafepoints, true, \ | |
2691 "Generate Safepoint nodes in every loop") \ | |
2692 \ | |
2693 develop(intx, FastAllocateSizeLimit, 128*K, \ | |
2694 /* Note: This value is zero mod 1<<13 for a cheap sparc set. */ \ | |
2695 "Inline allocations larger than this in doublewords must go slow")\ | |
2696 \ | |
2697 product(bool, AggressiveOpts, false, \ | |
2698 "Enable aggressive optimizations - see arguments.cpp") \ | |
2699 \ | |
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|
2700 product_pd(uintx, TypeProfileLevel, \ |
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diff
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|
2701 "=XYZ, with Z: Type profiling of arguments at call; " \ |
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diff
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|
2702 "Y: Type profiling of return value at call; " \ |
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diff
changeset
|
2703 "X: Type profiling of parameters to methods; " \ |
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diff
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|
2704 "X, Y and Z in 0=off ; 1=jsr292 only; 2=all methods") \ |
12875
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|
2705 \ |
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diff
changeset
|
2706 product(intx, TypeProfileArgsLimit, 2, \ |
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|
2707 "max number of call arguments to consider for type profiling") \ |
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|
2708 \ |
12962
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|
2709 product(intx, TypeProfileParmsLimit, 2, \ |
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changeset
|
2710 "max number of incoming parameters to consider for type profiling"\ |
5ccbab1c69f3
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changeset
|
2711 ", -1 for all") \ |
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|
2712 \ |
0 | 2713 /* statistics */ \ |
2714 develop(bool, CountCompiledCalls, false, \ | |
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|
2715 "Count method invocations") \ |
0 | 2716 \ |
2717 notproduct(bool, CountRuntimeCalls, false, \ | |
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|
2718 "Count VM runtime calls") \ |
0 | 2719 \ |
2720 develop(bool, CountJNICalls, false, \ | |
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|
2721 "Count jni method invocations") \ |
0 | 2722 \ |
2723 notproduct(bool, CountJVMCalls, false, \ | |
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|
2724 "Count jvm method invocations") \ |
0 | 2725 \ |
2726 notproduct(bool, CountRemovableExceptions, false, \ | |
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|
2727 "Count exceptions that could be replaced by branches due to " \ |
0 | 2728 "inlining") \ |
2729 \ | |
2730 notproduct(bool, ICMissHistogram, false, \ | |
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|
2731 "Produce histogram of IC misses") \ |
0 | 2732 \ |
2733 notproduct(bool, PrintClassStatistics, false, \ | |
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|
2734 "Print class statistics at end of run") \ |
0 | 2735 \ |
2736 notproduct(bool, PrintMethodStatistics, false, \ | |
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|
2737 "Print method statistics at end of run") \ |
0 | 2738 \ |
2739 /* interpreter */ \ | |
2740 develop(bool, ClearInterpreterLocals, false, \ | |
2741 "Always clear local variables of interpreter activations upon " \ | |
2742 "entry") \ | |
2743 \ | |
2744 product_pd(bool, RewriteBytecodes, \ | |
2745 "Allow rewriting of bytecodes (bytecodes are not immutable)") \ | |
2746 \ | |
2747 product_pd(bool, RewriteFrequentPairs, \ | |
2748 "Rewrite frequently used bytecode pairs into a single bytecode") \ | |
2749 \ | |
100
c7c777385a15
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76
diff
changeset
|
2750 diagnostic(bool, PrintInterpreter, false, \ |
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|
2751 "Print the generated interpreter code") \ |
0 | 2752 \ |
2753 product(bool, UseInterpreter, true, \ | |
2754 "Use interpreter for non-compiled methods") \ | |
2755 \ | |
2756 develop(bool, UseFastSignatureHandlers, true, \ | |
2757 "Use fast signature handlers for native calls") \ | |
2758 \ | |
2759 product(bool, UseLoopCounter, true, \ | |
2760 "Increment invocation counter on backward branch") \ | |
2761 \ | |
2762 product(bool, UseFastEmptyMethods, true, \ | |
2763 "Use fast method entry code for empty methods") \ | |
2764 \ | |
2765 product(bool, UseFastAccessorMethods, true, \ | |
2766 "Use fast method entry code for accessor methods") \ | |
2767 \ | |
2768 product_pd(bool, UseOnStackReplacement, \ | |
12836
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|
2769 "Use on stack replacement, calls runtime if invoc. counter " \ |
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diff
changeset
|
2770 "overflows in loop") \ |
0 | 2771 \ |
2772 notproduct(bool, TraceOnStackReplacement, false, \ | |
2773 "Trace on stack replacement") \ | |
2774 \ | |
2775 product_pd(bool, PreferInterpreterNativeStubs, \ | |
2776 "Use always interpreter stubs for native methods invoked via " \ | |
2777 "interpreter") \ | |
2778 \ | |
2779 develop(bool, CountBytecodes, false, \ | |
2780 "Count number of bytecodes executed") \ | |
2781 \ | |
2782 develop(bool, PrintBytecodeHistogram, false, \ | |
2783 "Print histogram of the executed bytecodes") \ | |
2784 \ | |
2785 develop(bool, PrintBytecodePairHistogram, false, \ | |
2786 "Print histogram of the executed bytecode pairs") \ | |
2787 \ | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
76
diff
changeset
|
2788 diagnostic(bool, PrintSignatureHandlers, false, \ |
0 | 2789 "Print code generated for native method signature handlers") \ |
2790 \ | |
2791 develop(bool, VerifyOops, false, \ | |
2792 "Do plausibility checks for oops") \ | |
2793 \ | |
2794 develop(bool, CheckUnhandledOops, false, \ | |
2795 "Check for unhandled oops in VM code") \ | |
2796 \ | |
2797 develop(bool, VerifyJNIFields, trueInDebug, \ | |
2798 "Verify jfieldIDs for instance fields") \ | |
2799 \ | |
2800 notproduct(bool, VerifyJNIEnvThread, false, \ | |
2801 "Verify JNIEnv.thread == Thread::current() when entering VM " \ | |
2802 "from JNI") \ | |
2803 \ | |
2804 develop(bool, VerifyFPU, false, \ | |
2805 "Verify FPU state (check for NaN's, etc.)") \ | |
2806 \ | |
2807 develop(bool, VerifyThread, false, \ | |
2808 "Watch the thread register for corruption (SPARC only)") \ | |
2809 \ | |
2810 develop(bool, VerifyActivationFrameSize, false, \ | |
2811 "Verify that activation frame didn't become smaller than its " \ | |
2812 "minimal size") \ | |
2813 \ | |
2814 develop(bool, TraceFrequencyInlining, false, \ | |
2815 "Trace frequency based inlining") \ | |
2816 \ | |
2817 develop_pd(bool, InlineIntrinsics, \ | |
12836
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|
2818 "Inline intrinsics that can be statically resolved") \ |
0 | 2819 \ |
2820 product_pd(bool, ProfileInterpreter, \ | |
12836
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|
2821 "Profile at the bytecode level during interpretation") \ |
0 | 2822 \ |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
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14412
diff
changeset
|
2823 develop(bool, TraceProfileInterpreter, false, \ |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14412
diff
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|
2824 "Trace profiling at the bytecode level during interpretation. " \ |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
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14412
diff
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|
2825 "This outputs the profiling information collected to improve " \ |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14412
diff
changeset
|
2826 "jit compilation.") \ |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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14412
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changeset
|
2827 \ |
0 | 2828 develop_pd(bool, ProfileTraps, \ |
2829 "Profile deoptimization traps at the bytecode level") \ | |
2830 \ | |
2831 product(intx, ProfileMaturityPercentage, 20, \ | |
2832 "number of method invocations/branches (expressed as % of " \ | |
2833 "CompileThreshold) before using the method's profile") \ | |
2834 \ | |
2835 develop(bool, PrintMethodData, false, \ | |
12836
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changeset
|
2836 "Print the results of +ProfileInterpreter at end of run") \ |
0 | 2837 \ |
2838 develop(bool, VerifyDataPointer, trueInDebug, \ | |
2839 "Verify the method data pointer during interpreter profiling") \ | |
2840 \ | |
2841 develop(bool, VerifyCompiledCode, false, \ | |
2842 "Include miscellaneous runtime verifications in nmethod code; " \ | |
1064 | 2843 "default off because it disturbs nmethod size heuristics") \ |
0 | 2844 \ |
1119
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2845 notproduct(bool, CrashGCForDumpingJavaThread, false, \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
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1064
diff
changeset
|
2846 "Manually make GC thread crash then dump java stack trace; " \ |
547f81740344
6361589: Print out stack trace for target thread of GC crash
minqi
parents:
1064
diff
changeset
|
2847 "Test only") \ |
0 | 2848 \ |
2849 /* compilation */ \ | |
2850 product(bool, UseCompiler, true, \ | |
12836
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|
2851 "Use Just-In-Time compilation") \ |
0 | 2852 \ |
2853 develop(bool, TraceCompilationPolicy, false, \ | |
2854 "Trace compilation policy") \ | |
2855 \ | |
2856 develop(bool, TimeCompilationPolicy, false, \ | |
2857 "Time the compilation policy") \ | |
2858 \ | |
2859 product(bool, UseCounterDecay, true, \ | |
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|
2860 "Adjust recompilation counters") \ |
0 | 2861 \ |
2862 develop(intx, CounterHalfLifeTime, 30, \ | |
12836
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|
2863 "Half-life time of invocation counters (in seconds)") \ |
0 | 2864 \ |
2865 develop(intx, CounterDecayMinIntervalLength, 500, \ | |
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|
2866 "The minimum interval (in milliseconds) between invocation of " \ |
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|
2867 "CounterDecay") \ |
0 | 2868 \ |
2869 product(bool, AlwaysCompileLoopMethods, false, \ | |
12836
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|
2870 "When using recompilation, never interpret methods " \ |
0 | 2871 "containing loops") \ |
2872 \ | |
2873 product(bool, DontCompileHugeMethods, true, \ | |
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|
2874 "Do not compile methods > HugeMethodLimit") \ |
0 | 2875 \ |
2876 /* Bytecode escape analysis estimation. */ \ | |
2877 product(bool, EstimateArgEscape, true, \ | |
2878 "Analyze bytecodes to estimate escape state of arguments") \ | |
2879 \ | |
2880 product(intx, BCEATraceLevel, 0, \ | |
2881 "How much tracing to do of bytecode escape analysis estimates") \ | |
2882 \ | |
2883 product(intx, MaxBCEAEstimateLevel, 5, \ | |
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|
2884 "Maximum number of nested calls that are analyzed by BC EA") \ |
0 | 2885 \ |
2886 product(intx, MaxBCEAEstimateSize, 150, \ | |
12836
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|
2887 "Maximum bytecode size of a method to be analyzed by BC EA") \ |
0 | 2888 \ |
2889 product(intx, AllocatePrefetchStyle, 1, \ | |
2890 "0 = no prefetch, " \ | |
2891 "1 = prefetch instructions for each allocation, " \ | |
1367
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
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|
2892 "2 = use TLAB watermark to gate allocation prefetch, " \ |
9e321dcfa5b7
6940726: Use BIS instruction for allocation prefetch on Sparc
kvn
parents:
1366
diff
changeset
|
2893 "3 = use BIS instruction on Sparc for allocation prefetch") \ |
0 | 2894 \ |
2895 product(intx, AllocatePrefetchDistance, -1, \ | |
2896 "Distance to prefetch ahead of allocation pointer") \ | |
2897 \ | |
3854 | 2898 product(intx, AllocatePrefetchLines, 3, \ |
2899 "Number of lines to prefetch ahead of array allocation pointer") \ | |
2900 \ | |
2901 product(intx, AllocateInstancePrefetchLines, 1, \ | |
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|
2902 "Number of lines to prefetch ahead of instance allocation " \ |
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|
2903 "pointer") \ |
0 | 2904 \ |
2905 product(intx, AllocatePrefetchStepSize, 16, \ | |
2906 "Step size in bytes of sequential prefetch instructions") \ | |
2907 \ | |
2908 product(intx, AllocatePrefetchInstr, 0, \ | |
2909 "Prefetch instruction to prefetch ahead of allocation pointer") \ | |
2910 \ | |
2911 /* deoptimization */ \ | |
2912 develop(bool, TraceDeoptimization, false, \ | |
2913 "Trace deoptimization") \ | |
2914 \ | |
2915 develop(bool, DebugDeoptimization, false, \ | |
2916 "Tracing various information while debugging deoptimization") \ | |
2917 \ | |
2918 product(intx, SelfDestructTimer, 0, \ | |
2919 "Will cause VM to terminate after a given time (in minutes) " \ | |
2920 "(0 means off)") \ | |
2921 \ | |
2922 product(intx, MaxJavaStackTraceDepth, 1024, \ | |
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|
2923 "The maximum number of lines in the stack trace for Java " \ |
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|
2924 "exceptions (0 means all)") \ |
0 | 2925 \ |
3328
277d0f6ca64d
7005503: Make GuaranteedSafepointInterval a diagnostic flag
kevinw
parents:
3255
diff
changeset
|
2926 NOT_EMBEDDED(diagnostic(intx, GuaranteedSafepointInterval, 1000, \ |
0 | 2927 "Guarantee a safepoint (at least) every so many milliseconds " \ |
2192
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7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2928 "(0 means none)")) \ |
b92c45f2bc75
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bobv
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2177
diff
changeset
|
2929 \ |
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
2177
diff
changeset
|
2930 EMBEDDED_ONLY(product(intx, GuaranteedSafepointInterval, 0, \ |
b92c45f2bc75
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bobv
parents:
2177
diff
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|
2931 "Guarantee a safepoint (at least) every so many milliseconds " \ |
b92c45f2bc75
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bobv
parents:
2177
diff
changeset
|
2932 "(0 means none)")) \ |
0 | 2933 \ |
2934 product(intx, SafepointTimeoutDelay, 10000, \ | |
2935 "Delay in milliseconds for option SafepointTimeout") \ | |
2936 \ | |
6818 | 2937 product(intx, NmethodSweepFraction, 16, \ |
0 | 2938 "Number of invocations of sweeper to cover all nmethods") \ |
2939 \ | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2940 product(intx, NmethodSweepCheckInterval, 5, \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2941 "Compilers wake up every n seconds to possibly sweep nmethods") \ |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1513
diff
changeset
|
2942 \ |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2943 product(intx, NmethodSweepActivity, 10, \ |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2944 "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
|
2945 "result in more aggressive sweeping") \ |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2946 \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2947 notproduct(bool, LogSweeper, false, \ |
12836
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|
2948 "Keep a ring buffer of sweeper activity") \ |
3384
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2949 \ |
f52ed367b66d
6996747: SIGSEGV in nmethod::cleanup_inline_caches / CompiledIC::verify
never
parents:
3373
diff
changeset
|
2950 notproduct(intx, SweeperLogEntries, 1024, \ |
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|
2951 "Number of records in the ring buffer of sweeper activity") \ |
3384
f52ed367b66d
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never
parents:
3373
diff
changeset
|
2952 \ |
0 | 2953 notproduct(intx, MemProfilingInterval, 500, \ |
2954 "Time between each invocation of the MemProfiler") \ | |
2955 \ | |
2956 develop(intx, MallocCatchPtr, -1, \ | |
2957 "Hit breakpoint when mallocing/freeing this pointer") \ | |
2958 \ | |
2959 notproduct(intx, AssertRepeat, 1, \ | |
2960 "number of times to evaluate expression in assert " \ | |
2961 "(to estimate overhead); only works with -DUSE_REPEATED_ASSERTS") \ | |
2962 \ | |
2963 notproduct(ccstrlist, SuppressErrorAt, "", \ | |
2964 "List of assertions (file:line) to muzzle") \ | |
2965 \ | |
2966 notproduct(uintx, HandleAllocationLimit, 1024, \ | |
2967 "Threshold for HandleMark allocation when +TraceHandleAllocation "\ | |
2968 "is used") \ | |
2969 \ | |
2970 develop(uintx, TotalHandleAllocationLimit, 1024, \ | |
2971 "Threshold for total handle allocation when " \ | |
2972 "+TraceHandleAllocation is used") \ | |
2973 \ | |
2974 develop(intx, StackPrintLimit, 100, \ | |
2975 "number of stack frames to print in VM-level stack dump") \ | |
2976 \ | |
2977 notproduct(intx, MaxElementPrintSize, 256, \ | |
2978 "maximum number of elements to print") \ | |
2979 \ | |
2980 notproduct(intx, MaxSubklassPrintSize, 4, \ | |
2981 "maximum number of subklasses to print when printing klass") \ | |
2982 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2983 product(intx, MaxInlineLevel, 9, \ |
0 | 2984 "maximum number of nested calls that are inlined") \ |
2985 \ | |
1157
c3b315a0d58a
6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents:
1150
diff
changeset
|
2986 product(intx, MaxRecursiveInlineLevel, 1, \ |
0 | 2987 "maximum number of nested recursive calls that are inlined") \ |
2988 \ | |
13081
e74074c34312
8028159: C2: compiler stack overflow during inlining of @ForceInline methods
vlivanov
parents:
13074
diff
changeset
|
2989 develop(intx, MaxForceInlineLevel, 100, \ |
e74074c34312
8028159: C2: compiler stack overflow during inlining of @ForceInline methods
vlivanov
parents:
13074
diff
changeset
|
2990 "maximum number of nested @ForceInline calls that are inlined") \ |
e74074c34312
8028159: C2: compiler stack overflow during inlining of @ForceInline methods
vlivanov
parents:
13074
diff
changeset
|
2991 \ |
675 | 2992 product_pd(intx, InlineSmallCode, \ |
0 | 2993 "Only inline already compiled methods if their code size is " \ |
2994 "less than this") \ | |
2995 \ | |
2996 product(intx, MaxInlineSize, 35, \ | |
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|
2997 "The maximum bytecode size of a method to be inlined") \ |
0 | 2998 \ |
2999 product_pd(intx, FreqInlineSize, \ | |
12836
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|
3000 "The maximum bytecode size of a frequent method to be inlined") \ |
0 | 3001 \ |
1157
c3b315a0d58a
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jrose
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1150
diff
changeset
|
3002 product(intx, MaxTrivialSize, 6, \ |
12836
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|
3003 "The maximum bytecode size of a trivial method to be inlined") \ |
0 | 3004 \ |
1157
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jrose
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1150
diff
changeset
|
3005 product(intx, MinInliningThreshold, 250, \ |
12836
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|
3006 "The minimum invocation count a method needs to have to be " \ |
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changeset
|
3007 "inlined") \ |
0 | 3008 \ |
3009 develop(intx, MethodHistogramCutoff, 100, \ | |
12836
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|
3010 "The cutoff value for method invocation histogram (+CountCalls)") \ |
0 | 3011 \ |
3012 develop(intx, ProfilerNumberOfInterpretedMethods, 25, \ | |
12836
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changeset
|
3013 "Number of interpreted methods to show in profile") \ |
0 | 3014 \ |
3015 develop(intx, ProfilerNumberOfCompiledMethods, 25, \ | |
12836
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changeset
|
3016 "Number of compiled methods to show in profile") \ |
0 | 3017 \ |
3018 develop(intx, ProfilerNumberOfStubMethods, 25, \ | |
12836
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changeset
|
3019 "Number of stub methods to show in profile") \ |
0 | 3020 \ |
3021 develop(intx, ProfilerNumberOfRuntimeStubNodes, 25, \ | |
12836
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changeset
|
3022 "Number of runtime stub nodes to show in profile") \ |
0 | 3023 \ |
3024 product(intx, ProfileIntervalsTicks, 100, \ | |
12836
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changeset
|
3025 "Number of ticks between printing of interval profile " \ |
0 | 3026 "(+ProfileIntervals)") \ |
3027 \ | |
3028 notproduct(intx, ScavengeALotInterval, 1, \ | |
3029 "Interval between which scavenge will occur with +ScavengeALot") \ | |
3030 \ | |
3031 notproduct(intx, FullGCALotInterval, 1, \ | |
3032 "Interval between which full gc will occur with +FullGCALot") \ | |
3033 \ | |
3034 notproduct(intx, FullGCALotStart, 0, \ | |
3035 "For which invocation to start FullGCAlot") \ | |
3036 \ | |
3037 notproduct(intx, FullGCALotDummies, 32*K, \ | |
3038 "Dummy object allocated with +FullGCALot, forcing all objects " \ | |
3039 "to move") \ | |
3040 \ | |
3041 develop(intx, DontYieldALotInterval, 10, \ | |
3042 "Interval between which yields will be dropped (milliseconds)") \ | |
3043 \ | |
3044 develop(intx, MinSleepInterval, 1, \ | |
3045 "Minimum sleep() interval (milliseconds) when " \ | |
12836
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changeset
|
3046 "ConvertSleepToYield is off (used for Solaris)") \ |
0 | 3047 \ |
3048 develop(intx, ProfilerPCTickThreshold, 15, \ | |
3049 "Number of ticks in a PC buckets to be a hotspot") \ | |
3050 \ | |
3051 notproduct(intx, DeoptimizeALotInterval, 5, \ | |
3052 "Number of exits until DeoptimizeALot kicks in") \ | |
3053 \ | |
3054 notproduct(intx, ZombieALotInterval, 5, \ | |
3055 "Number of exits until ZombieALot kicks in") \ | |
3056 \ | |
3057 diagnostic(intx, MallocVerifyInterval, 0, \ | |
12836
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12287
diff
changeset
|
3058 "If non-zero, verify C heap after every N calls to " \ |
0 | 3059 "malloc/realloc/free") \ |
3060 \ | |
3061 diagnostic(intx, MallocVerifyStart, 0, \ | |
12836
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tamao
parents:
12287
diff
changeset
|
3062 "If non-zero, start verifying C heap after Nth call to " \ |
0 | 3063 "malloc/realloc/free") \ |
3064 \ | |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
3065 diagnostic(uintx, MallocMaxTestWords, 0, \ |
12836
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tamao
parents:
12287
diff
changeset
|
3066 "If non-zero, maximum number of words that malloc/realloc can " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3067 "allocate (for testing only)") \ |
8802
eca90b8a06eb
7030610: runtime/6878713/Test6878713.sh fails Error. failed to clean up files after test
rdurbin
parents:
8706
diff
changeset
|
3068 \ |
6818 | 3069 product(intx, TypeProfileWidth, 2, \ |
12836
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tamao
parents:
12287
diff
changeset
|
3070 "Number of receiver types to record in call/cast profile") \ |
0 | 3071 \ |
3072 develop(intx, BciProfileWidth, 2, \ | |
12836
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tamao
parents:
12287
diff
changeset
|
3073 "Number of return bci's to record in ret profile") \ |
0 | 3074 \ |
3075 product(intx, PerMethodRecompilationCutoff, 400, \ | |
3076 "After recompiling N times, stay in the interpreter (-1=>'Inf')") \ | |
3077 \ | |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1202
diff
changeset
|
3078 product(intx, PerBytecodeRecompilationCutoff, 200, \ |
0 | 3079 "Per-BCI limit on repeated recompilation (-1=>'Inf')") \ |
3080 \ | |
3081 product(intx, PerMethodTrapLimit, 100, \ | |
3082 "Limit on traps (of one kind) in a method (includes inlines)") \ | |
3083 \ | |
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3084 experimental(intx, PerMethodSpecTrapLimit, 5000, \ |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3085 "Limit on speculative traps (of one kind) in a method (includes inlines)") \ |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3086 \ |
0 | 3087 product(intx, PerBytecodeTrapLimit, 4, \ |
3088 "Limit on traps (of one kind) at a particular BCI") \ | |
3089 \ | |
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3090 experimental(intx, SpecTrapLimitExtraEntries, 3, \ |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3091 "Extra method data trap entries for speculation") \ |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14460
diff
changeset
|
3092 \ |
0 | 3093 develop(intx, InlineFrequencyRatio, 20, \ |
3094 "Ratio of call site execution to caller method invocation") \ | |
3095 \ | |
3096 develop_pd(intx, InlineFrequencyCount, \ | |
3097 "Count of call site execution necessary to trigger frequent " \ | |
3098 "inlining") \ | |
3099 \ | |
3100 develop(intx, InlineThrowCount, 50, \ | |
3101 "Force inlining of interpreted methods that throw this often") \ | |
3102 \ | |
3103 develop(intx, InlineThrowMaxSize, 200, \ | |
3104 "Force inlining of throwing methods smaller than this") \ | |
3105 \ | |
3106 develop(intx, ProfilerNodeSize, 1024, \ | |
3107 "Size in K to allocate for the Profile Nodes of each thread") \ | |
3108 \ | |
3109 product_pd(intx, PreInflateSpin, \ | |
3110 "Number of times to spin wait before inflation") \ | |
3111 \ | |
3112 /* gc parameters */ \ | |
1064 | 3113 product(uintx, InitialHeapSize, 0, \ |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10208
diff
changeset
|
3114 "Initial heap size (in bytes); zero means use ergonomics") \ |
1064 | 3115 \ |
3116 product(uintx, MaxHeapSize, ScaleForWordSize(96*M), \ | |
3117 "Maximum heap size (in bytes)") \ | |
3118 \ | |
3119 product(uintx, OldSize, ScaleForWordSize(4*M), \ | |
3120 "Initial tenured generation size (in bytes)") \ | |
3121 \ | |
1287
8911d8c0596f
6923123: Hotspot refuses to start when -Xmx4m or -Xms4m is specified
phh
parents:
1211
diff
changeset
|
3122 product(uintx, NewSize, ScaleForWordSize(1*M), \ |
1064 | 3123 "Initial new generation size (in bytes)") \ |
0 | 3124 \ |
3125 product(uintx, MaxNewSize, max_uintx, \ | |
1064 | 3126 "Maximum new generation size (in bytes), max_uintx means set " \ |
3127 "ergonomically") \ | |
0 | 3128 \ |
3129 product(uintx, PretenureSizeThreshold, 0, \ | |
1064 | 3130 "Maximum size in bytes of objects allocated in DefNew " \ |
3131 "generation; zero means no maximum") \ | |
3132 \ | |
3133 product(uintx, TLABSize, 0, \ | |
3134 "Starting TLAB size (in bytes); zero means set ergonomically") \ | |
0 | 3135 \ |
3136 product(uintx, MinTLABSize, 2*K, \ | |
3137 "Minimum allowed TLAB size (in bytes)") \ | |
3138 \ | |
3139 product(uintx, TLABAllocationWeight, 35, \ | |
3140 "Allocation averaging weight") \ | |
3141 \ | |
3142 product(uintx, TLABWasteTargetPercent, 1, \ | |
3143 "Percentage of Eden that can be wasted") \ | |
3144 \ | |
3145 product(uintx, TLABRefillWasteFraction, 64, \ | |
12836
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|
3146 "Maximum TLAB waste at a refill (internal fragmentation)") \ |
0 | 3147 \ |
3148 product(uintx, TLABWasteIncrement, 4, \ | |
3149 "Increment allowed waste at slow allocation") \ | |
3150 \ | |
8035 | 3151 product(uintx, SurvivorRatio, 8, \ |
0 | 3152 "Ratio of eden/survivor space size") \ |
3153 \ | |
8035 | 3154 product(uintx, NewRatio, 2, \ |
12836
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|
3155 "Ratio of old/new generation sizes") \ |
0 | 3156 \ |
3157 product_pd(uintx, NewSizeThreadIncrease, \ | |
3158 "Additional size added to desired new generation size per " \ | |
3159 "non-daemon thread (in bytes)") \ | |
3160 \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3161 product_pd(uintx, MetaspaceSize, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3162 "Initial size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3163 \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6633
diff
changeset
|
3164 product(uintx, MaxMetaspaceSize, max_uintx, \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3165 "Maximum size of Metaspaces (in bytes)") \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6633
diff
changeset
|
3166 \ |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3167 product(uintx, CompressedClassSpaceSize, 1*G, \ |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3168 "Maximum size of class area in Metaspace when compressed " \ |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12154
diff
changeset
|
3169 "class pointers are used") \ |
0 | 3170 \ |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3171 manageable(uintx, MinHeapFreeRatio, 40, \ |
12892
9c8289162268
8024776: Max/MinHeapFreeRatio descriptions should be more precise
jwilhelm
parents:
12838
diff
changeset
|
3172 "The minimum percentage of heap free after GC to avoid expansion."\ |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3173 " For most GCs this applies to the old generation. In G1 and" \ |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3174 " ParallelGC it applies to the whole heap.") \ |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3175 \ |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3176 manageable(uintx, MaxHeapFreeRatio, 70, \ |
12892
9c8289162268
8024776: Max/MinHeapFreeRatio descriptions should be more precise
jwilhelm
parents:
12838
diff
changeset
|
3177 "The maximum percentage of heap free after GC to avoid shrinking."\ |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3178 " For most GCs this applies to the old generation. In G1 and" \ |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3179 " ParallelGC it applies to the whole heap.") \ |
0 | 3180 \ |
3181 product(intx, SoftRefLRUPolicyMSPerMB, 1000, \ | |
3182 "Number of milliseconds per MB of free space in the heap") \ | |
3183 \ | |
3184 product(uintx, MinHeapDeltaBytes, ScaleForWordSize(128*K), \ | |
12836
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12287
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|
3185 "The minimum change in heap space due to GC (in bytes)") \ |
0 | 3186 \ |
6818 | 3187 product(uintx, MinMetaspaceExpansion, ScaleForWordSize(256*K), \ |
12836
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12287
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changeset
|
3188 "The minimum expansion of Metaspace (in bytes)") \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3189 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3190 product(uintx, MinMetaspaceFreeRatio, 40, \ |
12836
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12287
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changeset
|
3191 "The minimum percentage of Metaspace free after GC to avoid " \ |
b4d8a3d4db73
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tamao
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12287
diff
changeset
|
3192 "expansion") \ |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3193 \ |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8035
diff
changeset
|
3194 product(uintx, MaxMetaspaceFreeRatio, 70, \ |
12836
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12287
diff
changeset
|
3195 "The maximum percentage of Metaspace free after GC to avoid " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
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12287
diff
changeset
|
3196 "shrinking") \ |
0 | 3197 \ |
6818 | 3198 product(uintx, MaxMetaspaceExpansion, ScaleForWordSize(4*M), \ |
12836
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tamao
parents:
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diff
changeset
|
3199 "The maximum expansion of Metaspace without full GC (in bytes)") \ |
0 | 3200 \ |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3201 product(uintx, QueuedAllocationWarningCount, 0, \ |
0 | 3202 "Number of times an allocation that queues behind a GC " \ |
3203 "will retry before printing a warning") \ | |
3204 \ | |
3205 diagnostic(uintx, VerifyGCStartAt, 0, \ | |
3206 "GC invoke count where +VerifyBefore/AfterGC kicks in") \ | |
3207 \ | |
3208 diagnostic(intx, VerifyGCLevel, 0, \ | |
3209 "Generation level at which to start +VerifyBefore/AfterGC") \ | |
3210 \ | |
6818 | 3211 product(uintx, MaxTenuringThreshold, 15, \ |
0 | 3212 "Maximum value for tenuring threshold") \ |
3213 \ | |
6818 | 3214 product(uintx, InitialTenuringThreshold, 7, \ |
0 | 3215 "Initial value for tenuring threshold") \ |
3216 \ | |
8035 | 3217 product(uintx, TargetSurvivorRatio, 50, \ |
0 | 3218 "Desired percentage of survivor space used after scavenge") \ |
3219 \ | |
438 | 3220 product(uintx, MarkSweepDeadRatio, 5, \ |
12836
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tamao
parents:
12287
diff
changeset
|
3221 "Percentage (0-100) of the old gen allowed as dead wood. " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3222 "Serial mark sweep treats this as both the minimum and maximum " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3223 "value. " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3224 "CMS uses this value only if it falls back to mark sweep. " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3225 "Par compact uses a variable scale based on the density of the " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3226 "generation and treats this as the maximum value when the heap " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3227 "is either completely full or completely empty. Par compact " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3228 "also has a smaller default value; see arguments.cpp.") \ |
0 | 3229 \ |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10241
diff
changeset
|
3230 product(uintx, MarkSweepAlwaysCompactCount, 4, \ |
0 | 3231 "How often should we fully compact the heap (ignoring the dead " \ |
3232 "space parameters)") \ | |
3233 \ | |
3234 product(intx, PrintCMSStatistics, 0, \ | |
3235 "Statistics for CMS") \ | |
3236 \ | |
3237 product(bool, PrintCMSInitiationStatistics, false, \ | |
3238 "Statistics for initiating a CMS collection") \ | |
3239 \ | |
3240 product(intx, PrintFLSStatistics, 0, \ | |
3241 "Statistics for CMS' FreeListSpace") \ | |
3242 \ | |
3243 product(intx, PrintFLSCensus, 0, \ | |
3244 "Census for CMS' FreeListSpace") \ | |
3245 \ | |
3246 develop(uintx, GCExpandToAllocateDelayMillis, 0, \ | |
12836
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tamao
parents:
12287
diff
changeset
|
3247 "Delay between expansion and allocation (in milliseconds)") \ |
0 | 3248 \ |
6817 | 3249 develop(uintx, GCWorkerDelayMillis, 0, \ |
12836
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tamao
parents:
12287
diff
changeset
|
3250 "Delay in scheduling GC workers (in milliseconds)") \ |
6817 | 3251 \ |
0 | 3252 product(intx, DeferThrSuspendLoopCount, 4000, \ |
3253 "(Unstable) Number of times to iterate in safepoint loop " \ | |
12836
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tamao
parents:
12287
diff
changeset
|
3254 "before blocking VM threads ") \ |
0 | 3255 \ |
3256 product(intx, DeferPollingPageLoopCount, -1, \ | |
3257 "(Unsafe,Unstable) Number of iterations in safepoint loop " \ | |
3258 "before changing safepoint polling page to RO ") \ | |
3259 \ | |
12836
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tamao
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changeset
|
3260 product(intx, SafepointSpinBeforeYield, 2000, "(Unstable)") \ |
0 | 3261 \ |
3262 product(bool, PSChunkLargeArrays, true, \ | |
12836
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diff
changeset
|
3263 "Process large arrays in chunks") \ |
0 | 3264 \ |
3265 product(uintx, GCDrainStackTargetSize, 64, \ | |
12836
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changeset
|
3266 "Number of entries we will try to leave on the stack " \ |
b4d8a3d4db73
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changeset
|
3267 "during parallel gc") \ |
0 | 3268 \ |
3269 /* stack parameters */ \ | |
3270 product_pd(intx, StackYellowPages, \ | |
3271 "Number of yellow zone (recoverable overflows) pages") \ | |
3272 \ | |
3273 product_pd(intx, StackRedPages, \ | |
3274 "Number of red zone (unrecoverable overflows) pages") \ | |
3275 \ | |
3276 product_pd(intx, StackShadowPages, \ | |
12836
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changeset
|
3277 "Number of shadow zone (for overflow checking) pages " \ |
b4d8a3d4db73
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tamao
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diff
changeset
|
3278 "this should exceed the depth of the VM and native call stack") \ |
0 | 3279 \ |
3280 product_pd(intx, ThreadStackSize, \ | |
3281 "Thread Stack Size (in Kbytes)") \ | |
3282 \ | |
3283 product_pd(intx, VMThreadStackSize, \ | |
3284 "Non-Java Thread Stack Size (in Kbytes)") \ | |
3285 \ | |
3286 product_pd(intx, CompilerThreadStackSize, \ | |
3287 "Compiler Thread Stack Size (in Kbytes)") \ | |
3288 \ | |
3289 develop_pd(uintx, JVMInvokeMethodSlack, \ | |
3290 "Stack space (bytes) required for JVM_InvokeMethod to complete") \ | |
3291 \ | |
3292 product(uintx, ThreadSafetyMargin, 50*M, \ | |
3293 "Thread safety margin is used on fixed-stack LinuxThreads (on " \ | |
3294 "Linux/x86 only) to prevent heap-stack collision. Set to 0 to " \ | |
3295 "disable this feature") \ | |
3296 \ | |
3297 /* code cache parameters */ \ | |
14391 | 3298 /* ppc64 has large code-entry alignment. */ \ |
3299 develop(uintx, CodeCacheSegmentSize, 64 PPC64_ONLY(+64), \ | |
0 | 3300 "Code cache segment size (in bytes) - smallest unit of " \ |
3301 "allocation") \ | |
3302 \ | |
3303 develop_pd(intx, CodeEntryAlignment, \ | |
3304 "Code entry alignment for generated code (in bytes)") \ | |
3305 \ | |
1365 | 3306 product_pd(intx, OptoLoopAlignment, \ |
3307 "Align inner loops to zero relative to this modulus") \ | |
3308 \ | |
0 | 3309 product_pd(uintx, InitialCodeCacheSize, \ |
3310 "Initial code cache size (in bytes)") \ | |
3311 \ | |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3312 develop_pd(uintx, CodeCacheMinimumUseSpace, \ |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
10405
diff
changeset
|
3313 "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
|
3314 \ |
0 | 3315 product_pd(uintx, ReservedCodeCacheSize, \ |
3316 "Reserved code cache size (in bytes) - maximum code cache size") \ | |
3317 \ | |
3318 product(uintx, CodeCacheMinimumFreeSpace, 500*K, \ | |
12836
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changeset
|
3319 "When less than X space left, we stop compiling") \ |
0 | 3320 \ |
3321 product_pd(uintx, CodeCacheExpansionSize, \ | |
3322 "Code cache expansion size (in bytes)") \ | |
3323 \ | |
3324 develop_pd(uintx, CodeCacheMinBlockLength, \ | |
12836
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|
3325 "Minimum number of segments in a code cache block") \ |
0 | 3326 \ |
3327 notproduct(bool, ExitOnFullCodeCache, false, \ | |
12836
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|
3328 "Exit the VM if we fill the code cache") \ |
0 | 3329 \ |
4039 | 3330 product(bool, UseCodeCacheFlushing, true, \ |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
3331 "Remove cold/old nmethods from the code cache") \ |
1202 | 3332 \ |
0 | 3333 /* interpreter debugging */ \ |
3334 develop(intx, BinarySwitchThreshold, 5, \ | |
3335 "Minimal number of lookupswitch entries for rewriting to binary " \ | |
3336 "switch") \ | |
3337 \ | |
3338 develop(intx, StopInterpreterAt, 0, \ | |
12836
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|
3339 "Stop interpreter execution at specified bytecode number") \ |
0 | 3340 \ |
3341 develop(intx, TraceBytecodesAt, 0, \ | |
12836
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|
3342 "Trace bytecodes starting with specified bytecode number") \ |
0 | 3343 \ |
3344 /* compiler interface */ \ | |
3345 develop(intx, CIStart, 0, \ | |
12836
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|
3346 "The id of the first compilation to permit") \ |
0 | 3347 \ |
14236 | 3348 develop(intx, CIStop, max_jint, \ |
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|
3349 "The id of the last compilation to permit") \ |
0 | 3350 \ |
14236 | 3351 develop(intx, CIStartOSR, 0, \ |
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|
3352 "The id of the first osr compilation to permit " \ |
0 | 3353 "(CICountOSR must be on)") \ |
3354 \ | |
14236 | 3355 develop(intx, CIStopOSR, max_jint, \ |
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|
3356 "The id of the last osr compilation to permit " \ |
0 | 3357 "(CICountOSR must be on)") \ |
3358 \ | |
14236 | 3359 develop(intx, CIBreakAtOSR, -1, \ |
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|
3360 "The id of osr compilation to break at") \ |
0 | 3361 \ |
14236 | 3362 develop(intx, CIBreakAt, -1, \ |
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|
3363 "The id of compilation to break at") \ |
0 | 3364 \ |
3365 product(ccstrlist, CompileOnly, "", \ | |
3366 "List of methods (pkg/class.name) to restrict compilation to") \ | |
3367 \ | |
3368 product(ccstr, CompileCommandFile, NULL, \ | |
3369 "Read compiler commands from this file [.hotspot_compiler]") \ | |
3370 \ | |
3371 product(ccstrlist, CompileCommand, "", \ | |
3372 "Prepend to .hotspot_compiler; e.g. log,java/lang/String.<init>") \ | |
3373 \ | |
6972
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|
3374 develop(bool, ReplayCompiles, false, \ |
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|
3375 "Enable replay of compilations from ReplayDataFile") \ |
bd7a7ce2e264
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changeset
|
3376 \ |
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3377 product(ccstr, ReplayDataFile, NULL, \ |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3378 "File containing compilation replay information" \ |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9073
diff
changeset
|
3379 "[default: ./replay_pid%p.log] (%p replaced with pid)") \ |
6972
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parents:
6935
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|
3380 \ |
14232 | 3381 product(ccstr, InlineDataFile, NULL, \ |
3382 "File containing inlining replay information" \ | |
3383 "[default: ./inline_pid%p.log] (%p replaced with pid)") \ | |
3384 \ | |
6972
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|
3385 develop(intx, ReplaySuppressInitializers, 2, \ |
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|
3386 "Control handling of class initialization during replay: " \ |
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|
3387 "0 - don't do anything special; " \ |
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|
3388 "1 - treat all class initializers as empty; " \ |
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|
3389 "2 - treat class initializers for application classes as empty; " \ |
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|
3390 "3 - allow all class initializers to run during bootstrap but " \ |
6972
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changeset
|
3391 " pretend they are empty after starting replay") \ |
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changeset
|
3392 \ |
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|
3393 develop(bool, ReplayIgnoreInitErrors, false, \ |
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|
3394 "Ignore exceptions thrown during initialization for replay") \ |
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6935
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changeset
|
3395 \ |
10195
e12c9b3740db
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changeset
|
3396 product(bool, DumpReplayDataOnError, true, \ |
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|
3397 "Record replay data for crashing compiler threads") \ |
6972
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|
3398 \ |
0 | 3399 product(bool, CICompilerCountPerCPU, false, \ |
3400 "1 compiler thread for log(N CPUs)") \ | |
3401 \ | |
3402 develop(intx, CIFireOOMAt, -1, \ | |
3403 "Fire OutOfMemoryErrors throughout CI for testing the compiler " \ | |
3404 "(non-negative value throws OOM after this many CI accesses " \ | |
3405 "in each compile)") \ | |
10197
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3406 notproduct(intx, CICrashAt, -1, \ |
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3407 "id of compilation to trigger assert in compiler thread for " \ |
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
10195
diff
changeset
|
3408 "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
|
3409 notproduct(bool, CIObjectFactoryVerify, false, \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3410 "enable potentially expensive verification in ciObjectFactory") \ |
b32a809aab08
6866585: debug code in ciObjectFactory too slow for large objects
jcoomes
parents:
905
diff
changeset
|
3411 \ |
0 | 3412 /* Priorities */ \ |
3413 product_pd(bool, UseThreadPriorities, "Use native thread priorities") \ | |
3414 \ | |
3415 product(intx, ThreadPriorityPolicy, 0, \ | |
3416 "0 : Normal. "\ | |
3417 " VM chooses priorities that are appropriate for normal "\ | |
3418 " applications. On Solaris NORM_PRIORITY and above are mapped "\ | |
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|
3419 " to normal native priority. Java priorities below " \ |
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|
3420 " NORM_PRIORITY map to lower native priority values. On "\ |
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|
3421 " Windows applications are allowed to use higher native "\ |
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|
3422 " priorities. However, with ThreadPriorityPolicy=0, VM will "\ |
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|
3423 " not use the highest possible native priority, "\ |
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|
3424 " THREAD_PRIORITY_TIME_CRITICAL, as it may interfere with "\ |
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|
3425 " system threads. On Linux thread priorities are ignored "\ |
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|
3426 " because the OS does not support static priority in "\ |
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|
3427 " SCHED_OTHER scheduling class which is the only choice for "\ |
0 | 3428 " non-root, non-realtime applications. "\ |
3429 "1 : Aggressive. "\ | |
3430 " Java thread priorities map over to the entire range of "\ | |
3431 " native thread priorities. Higher Java thread priorities map "\ | |
3432 " to higher native thread priorities. This policy should be "\ | |
3433 " used with care, as sometimes it can cause performance "\ | |
3434 " degradation in the application and/or the entire system. On "\ | |
3435 " Linux this policy requires root privilege.") \ | |
3436 \ | |
3437 product(bool, ThreadPriorityVerbose, false, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
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changeset
|
3438 "Print priority changes") \ |
0 | 3439 \ |
3440 product(intx, DefaultThreadPriority, -1, \ | |
4854
de268c8a8075
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|
3441 "The native priority at which threads run if not elsewhere " \ |
de268c8a8075
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phh
parents:
4807
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changeset
|
3442 "specified (-1 means no change)") \ |
0 | 3443 \ |
3444 product(intx, CompilerThreadPriority, -1, \ | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
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changeset
|
3445 "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
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diff
changeset
|
3446 "(-1 means no change)") \ |
0 | 3447 \ |
3448 product(intx, VMThreadPriority, -1, \ | |
4854
de268c8a8075
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changeset
|
3449 "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
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changeset
|
3450 "(-1 means no change)") \ |
0 | 3451 \ |
3452 product(bool, CompilerThreadHintNoPreempt, true, \ | |
3453 "(Solaris only) Give compiler threads an extra quanta") \ | |
3454 \ | |
3455 product(bool, VMThreadHintNoPreempt, false, \ | |
3456 "(Solaris only) Give VM thread an extra quanta") \ | |
3457 \ | |
12836
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|
3458 product(intx, JavaPriority1_To_OSPriority, -1, \ |
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changeset
|
3459 "Map Java priorities to OS priorities") \ |
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|
3460 \ |
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|
3461 product(intx, JavaPriority2_To_OSPriority, -1, \ |
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changeset
|
3462 "Map Java priorities to OS priorities") \ |
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changeset
|
3463 \ |
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|
3464 product(intx, JavaPriority3_To_OSPriority, -1, \ |
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changeset
|
3465 "Map Java priorities to OS priorities") \ |
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|
3466 \ |
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changeset
|
3467 product(intx, JavaPriority4_To_OSPriority, -1, \ |
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changeset
|
3468 "Map Java priorities to OS priorities") \ |
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|
3469 \ |
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changeset
|
3470 product(intx, JavaPriority5_To_OSPriority, -1, \ |
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changeset
|
3471 "Map Java priorities to OS priorities") \ |
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|
3472 \ |
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changeset
|
3473 product(intx, JavaPriority6_To_OSPriority, -1, \ |
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changeset
|
3474 "Map Java priorities to OS priorities") \ |
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changeset
|
3475 \ |
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changeset
|
3476 product(intx, JavaPriority7_To_OSPriority, -1, \ |
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changeset
|
3477 "Map Java priorities to OS priorities") \ |
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changeset
|
3478 \ |
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changeset
|
3479 product(intx, JavaPriority8_To_OSPriority, -1, \ |
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changeset
|
3480 "Map Java priorities to OS priorities") \ |
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changeset
|
3481 \ |
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changeset
|
3482 product(intx, JavaPriority9_To_OSPriority, -1, \ |
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changeset
|
3483 "Map Java priorities to OS priorities") \ |
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|
3484 \ |
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changeset
|
3485 product(intx, JavaPriority10_To_OSPriority,-1, \ |
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changeset
|
3486 "Map Java priorities to OS priorities") \ |
0 | 3487 \ |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
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changeset
|
3488 experimental(bool, UseCriticalJavaThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
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changeset
|
3489 "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:
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changeset
|
3490 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
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changeset
|
3491 experimental(bool, UseCriticalCompilerThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
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changeset
|
3492 "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:
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changeset
|
3493 \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4807
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changeset
|
3494 experimental(bool, UseCriticalCMSThreadPriority, false, \ |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
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changeset
|
3495 "ConcurrentMarkSweep thread runs at critical scheduling priority")\ |
de268c8a8075
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|
3496 \ |
0 | 3497 /* compiler debugging */ \ |
3498 notproduct(intx, CompileTheWorldStartAt, 1, \ | |
3499 "First class to consider when using +CompileTheWorld") \ | |
3500 \ | |
3501 notproduct(intx, CompileTheWorldStopAt, max_jint, \ | |
3502 "Last class to consider when using +CompileTheWorld") \ | |
3503 \ | |
3504 develop(intx, NewCodeParameter, 0, \ | |
3505 "Testing Only: Create a dedicated integer parameter before " \ | |
3506 "putback") \ | |
3507 \ | |
3508 /* new oopmap storage allocation */ \ | |
3509 develop(intx, MinOopMapAllocation, 8, \ | |
3510 "Minimum number of OopMap entries in an OopMapSet") \ | |
3511 \ | |
3512 /* Background Compilation */ \ | |
3513 develop(intx, LongCompileThreshold, 50, \ | |
3514 "Used with +TraceLongCompiles") \ | |
3515 \ | |
3516 product(intx, StarvationMonitorInterval, 200, \ | |
12836
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3517 "Pause between each check (in milliseconds)") \ |
0 | 3518 \ |
3519 /* recompilation */ \ | |
3520 product_pd(intx, CompileThreshold, \ | |
3521 "number of interpreted method invocations before (re-)compiling") \ | |
3522 \ | |
3523 product_pd(intx, BackEdgeThreshold, \ | |
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3524 "Interpreter Back edge threshold at which an OSR compilation is " \ |
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3525 "invoked") \ |
0 | 3526 \ |
1783 | 3527 product(intx, Tier0InvokeNotifyFreqLog, 7, \ |
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3528 "Interpreter (tier 0) invocation notification frequency") \ |
1783 | 3529 \ |
3530 product(intx, Tier2InvokeNotifyFreqLog, 11, \ | |
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3531 "C1 without MDO (tier 2) invocation notification frequency") \ |
1783 | 3532 \ |
3533 product(intx, Tier3InvokeNotifyFreqLog, 10, \ | |
3534 "C1 with MDO profiling (tier 3) invocation notification " \ | |
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3535 "frequency") \ |
1783 | 3536 \ |
3964
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3537 product(intx, Tier23InlineeNotifyFreqLog, 20, \ |
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3538 "Inlinee invocation (tiers 2 and 3) notification frequency") \ |
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3539 \ |
1783 | 3540 product(intx, Tier0BackedgeNotifyFreqLog, 10, \ |
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3541 "Interpreter (tier 0) invocation notification frequency") \ |
1783 | 3542 \ |
3543 product(intx, Tier2BackedgeNotifyFreqLog, 14, \ | |
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3544 "C1 without MDO (tier 2) invocation notification frequency") \ |
1783 | 3545 \ |
3546 product(intx, Tier3BackedgeNotifyFreqLog, 13, \ | |
3547 "C1 with MDO profiling (tier 3) invocation notification " \ | |
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3548 "frequency") \ |
1783 | 3549 \ |
3550 product(intx, Tier2CompileThreshold, 0, \ | |
3551 "threshold at which tier 2 compilation is invoked") \ | |
3552 \ | |
3553 product(intx, Tier2BackEdgeThreshold, 0, \ | |
3554 "Back edge threshold at which tier 2 compilation is invoked") \ | |
3555 \ | |
3556 product(intx, Tier3InvocationThreshold, 200, \ | |
3557 "Compile if number of method invocations crosses this " \ | |
3558 "threshold") \ | |
3559 \ | |
3560 product(intx, Tier3MinInvocationThreshold, 100, \ | |
3561 "Minimum invocation to compile at tier 3") \ | |
3562 \ | |
3563 product(intx, Tier3CompileThreshold, 2000, \ | |
3564 "Threshold at which tier 3 compilation is invoked (invocation " \ | |
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3565 "minimum must be satisfied") \ |
1783 | 3566 \ |
4819 | 3567 product(intx, Tier3BackEdgeThreshold, 60000, \ |
1783 | 3568 "Back edge threshold at which tier 3 OSR compilation is invoked") \ |
3569 \ | |
3570 product(intx, Tier4InvocationThreshold, 5000, \ | |
3571 "Compile if number of method invocations crosses this " \ | |
3572 "threshold") \ | |
3573 \ | |
3574 product(intx, Tier4MinInvocationThreshold, 600, \ | |
3575 "Minimum invocation to compile at tier 4") \ | |
3576 \ | |
3577 product(intx, Tier4CompileThreshold, 15000, \ | |
3578 "Threshold at which tier 4 compilation is invoked (invocation " \ | |
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3579 "minimum must be satisfied") \ |
1783 | 3580 \ |
3581 product(intx, Tier4BackEdgeThreshold, 40000, \ | |
3582 "Back edge threshold at which tier 4 OSR compilation is invoked") \ | |
3583 \ | |
3584 product(intx, Tier3DelayOn, 5, \ | |
3585 "If C2 queue size grows over this amount per compiler thread " \ | |
3586 "stop compiling at tier 3 and start compiling at tier 2") \ | |
3587 \ | |
3588 product(intx, Tier3DelayOff, 2, \ | |
3589 "If C2 queue size is less than this amount per compiler thread " \ | |
3590 "allow methods compiled at tier 2 transition to tier 3") \ | |
3591 \ | |
3592 product(intx, Tier3LoadFeedback, 5, \ | |
3593 "Tier 3 thresholds will increase twofold when C1 queue size " \ | |
3594 "reaches this amount per compiler thread") \ | |
3595 \ | |
3596 product(intx, Tier4LoadFeedback, 3, \ | |
3597 "Tier 4 thresholds will increase twofold when C2 queue size " \ | |
3598 "reaches this amount per compiler thread") \ | |
3599 \ | |
3600 product(intx, TieredCompileTaskTimeout, 50, \ | |
3601 "Kill compile task if method was not used within " \ | |
3602 "given timeout in milliseconds") \ | |
3603 \ | |
3604 product(intx, TieredStopAtLevel, 4, \ | |
3605 "Stop at given compilation level") \ | |
3606 \ | |
3607 product(intx, Tier0ProfilingStartPercentage, 200, \ | |
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3608 "Start profiling in interpreter if the counters exceed tier 3 " \ |
1783 | 3609 "thresholds by the specified percentage") \ |
3610 \ | |
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3611 product(uintx, IncreaseFirstTierCompileThresholdAt, 50, \ |
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3612 "Increase the compile threshold for C1 compilation if the code " \ |
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3613 "cache is filled by the specified percentage") \ |
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3614 \ |
1783 | 3615 product(intx, TieredRateUpdateMinTime, 1, \ |
3616 "Minimum rate sampling interval (in milliseconds)") \ | |
3617 \ | |
3618 product(intx, TieredRateUpdateMaxTime, 25, \ | |
3619 "Maximum rate sampling interval (in milliseconds)") \ | |
0 | 3620 \ |
3621 product_pd(bool, TieredCompilation, \ | |
1783 | 3622 "Enable tiered compilation") \ |
3623 \ | |
3624 product(bool, PrintTieredEvents, false, \ | |
3625 "Print tiered events notifications") \ | |
0 | 3626 \ |
3627 product_pd(intx, OnStackReplacePercentage, \ | |
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3628 "NON_TIERED number of method invocations/branches (expressed as " \ |
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3629 "% of CompileThreshold) before (re-)compiling OSR code") \ |
0 | 3630 \ |
3631 product(intx, InterpreterProfilePercentage, 33, \ | |
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3632 "NON_TIERED number of method invocations/branches (expressed as " \ |
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3633 "% of CompileThreshold) before profiling in the interpreter") \ |
0 | 3634 \ |
3635 develop(intx, MaxRecompilationSearchLength, 10, \ | |
12836
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3636 "The maximum number of frames to inspect when searching for " \ |
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3637 "recompilee") \ |
0 | 3638 \ |
3639 develop(intx, MaxInterpretedSearchLength, 3, \ | |
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3640 "The maximum number of interpreted frames to skip when searching "\ |
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3641 "for recompilee") \ |
0 | 3642 \ |
3643 develop(intx, DesiredMethodLimit, 8000, \ | |
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3644 "The desired maximum method size (in bytecodes) after inlining") \ |
0 | 3645 \ |
3646 develop(intx, HugeMethodLimit, 8000, \ | |
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3647 "Don't compile methods larger than this if " \ |
0 | 3648 "+DontCompileHugeMethods") \ |
3649 \ | |
3650 /* New JDK 1.4 reflection implementation */ \ | |
3651 \ | |
3652 develop(bool, UseNewReflection, true, \ | |
3653 "Temporary flag for transition to reflection based on dynamic " \ | |
3654 "bytecode generation in 1.4; can no longer be turned off in 1.4 " \ | |
3655 "JDK, and is unneeded in 1.3 JDK, but marks most places VM " \ | |
3656 "changes were needed") \ | |
3657 \ | |
3658 develop(bool, VerifyReflectionBytecodes, false, \ | |
3659 "Force verification of 1.4 reflection bytecodes. Does not work " \ | |
3660 "in situations like that described in 4486457 or for " \ | |
3661 "constructors generated for serialization, so can not be enabled "\ | |
3662 "in product.") \ | |
3663 \ | |
3664 product(bool, ReflectionWrapResolutionErrors, true, \ | |
3665 "Temporary flag for transition to AbstractMethodError wrapped " \ | |
3666 "in InvocationTargetException. See 6531596") \ | |
3667 \ | |
3668 develop(intx, FastSuperclassLimit, 8, \ | |
3669 "Depth of hardwired instanceof accelerator array") \ | |
3670 \ | |
3671 /* Properties for Java libraries */ \ | |
3672 \ | |
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3673 product(uintx, MaxDirectMemorySize, 0, \ |
0 | 3674 "Maximum total size of NIO direct-buffer allocations") \ |
3675 \ | |
14309 | 3676 /* Flags used for temporary code during development */ \ |
0 | 3677 \ |
3678 diagnostic(bool, UseNewCode, false, \ | |
3679 "Testing Only: Use the new version while testing") \ | |
3680 \ | |
3681 diagnostic(bool, UseNewCode2, false, \ | |
3682 "Testing Only: Use the new version while testing") \ | |
3683 \ | |
3684 diagnostic(bool, UseNewCode3, false, \ | |
3685 "Testing Only: Use the new version while testing") \ | |
3686 \ | |
3687 /* flags for performance data collection */ \ | |
3688 \ | |
3797
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3689 product(bool, UsePerfData, falseInEmbedded, \ |
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3690 "Flag to disable jvmstat instrumentation for performance testing "\ |
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3691 "and problem isolation purposes") \ |
0 | 3692 \ |
3693 product(bool, PerfDataSaveToFile, false, \ | |
3694 "Save PerfData memory to hsperfdata_<pid> file on exit") \ | |
3695 \ | |
3696 product(ccstr, PerfDataSaveFile, NULL, \ | |
12836
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3697 "Save PerfData memory to the specified absolute pathname. " \ |
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3698 "The string %p in the file name (if present) " \ |
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3699 "will be replaced by pid") \ |
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3700 \ |
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3701 product(intx, PerfDataSamplingInterval, 50, \ |
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3702 "Data sampling interval (in milliseconds)") \ |
0 | 3703 \ |
3704 develop(bool, PerfTraceDataCreation, false, \ | |
3705 "Trace creation of Performance Data Entries") \ | |
3706 \ | |
3707 develop(bool, PerfTraceMemOps, false, \ | |
3708 "Trace PerfMemory create/attach/detach calls") \ | |
3709 \ | |
3710 product(bool, PerfDisableSharedMem, false, \ | |
3711 "Store performance data in standard memory") \ | |
3712 \ | |
3713 product(intx, PerfDataMemorySize, 32*K, \ | |
3714 "Size of performance data memory region. Will be rounded " \ | |
3715 "up to a multiple of the native os page size.") \ | |
3716 \ | |
3717 product(intx, PerfMaxStringConstLength, 1024, \ | |
3718 "Maximum PerfStringConstant string length before truncation") \ | |
3719 \ | |
3720 product(bool, PerfAllowAtExitRegistration, false, \ | |
3721 "Allow registration of atexit() methods") \ | |
3722 \ | |
3723 product(bool, PerfBypassFileSystemCheck, false, \ | |
3724 "Bypass Win32 file system criteria checks (Windows Only)") \ | |
3725 \ | |
3726 product(intx, UnguardOnExecutionViolation, 0, \ | |
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3727 "Unguard page and retry on no-execute fault (Win32 only) " \ |
0 | 3728 "0=off, 1=conservative, 2=aggressive") \ |
3729 \ | |
3730 /* Serviceability Support */ \ | |
3731 \ | |
3732 product(bool, ManagementServer, false, \ | |
3733 "Create JMX Management Server") \ | |
3734 \ | |
3735 product(bool, DisableAttachMechanism, false, \ | |
12836
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3736 "Disable mechanism that allows tools to attach to this VM") \ |
0 | 3737 \ |
3738 product(bool, StartAttachListener, false, \ | |
3739 "Always start Attach Listener at VM startup") \ | |
3740 \ | |
3741 manageable(bool, PrintConcurrentLocks, false, \ | |
3742 "Print java.util.concurrent locks in thread dump") \ | |
3743 \ | |
2209
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3744 product(bool, TransmitErrorReport, false, \ |
2199
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3745 "Enable error report transmission on erroneous termination") \ |
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|
3746 \ |
2209
e9aa2ca89ad6
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3747 product(ccstr, ErrorReportServer, NULL, \ |
2199
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3748 "Override built-in error report server address") \ |
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3749 \ |
0 | 3750 /* Shared spaces */ \ |
3751 \ | |
3752 product(bool, UseSharedSpaces, true, \ | |
7461
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|
3753 "Use shared spaces for metadata") \ |
0 | 3754 \ |
3755 product(bool, RequireSharedSpaces, false, \ | |
7461
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|
3756 "Require shared spaces for metadata") \ |
0 | 3757 \ |
3758 product(bool, DumpSharedSpaces, false, \ | |
12836
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3759 "Special mode: JVM reads a class list, loads classes, builds " \ |
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3760 "shared spaces, and dumps the shared spaces to a file to be " \ |
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3761 "used in future JVM runs") \ |
0 | 3762 \ |
3763 product(bool, PrintSharedSpaces, false, \ | |
3764 "Print usage of shared spaces") \ | |
3765 \ | |
6725
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|
3766 product(uintx, SharedReadWriteSize, NOT_LP64(12*M) LP64_ONLY(16*M), \ |
7461
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|
3767 "Size of read-write space for metadata (in bytes)") \ |
0 | 3768 \ |
6725
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|
3769 product(uintx, SharedReadOnlySize, NOT_LP64(12*M) LP64_ONLY(16*M), \ |
7461
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|
3770 "Size of read-only space for metadata (in bytes)") \ |
0 | 3771 \ |
6725
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|
3772 product(uintx, SharedMiscDataSize, NOT_LP64(2*M) LP64_ONLY(4*M), \ |
7461
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|
3773 "Size of the shared miscellaneous data area (in bytes)") \ |
0 | 3774 \ |
6725
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|
3775 product(uintx, SharedMiscCodeSize, 120*K, \ |
7461
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|
3776 "Size of the shared miscellaneous code area (in bytes)") \ |
0 | 3777 \ |
8804
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8008217: CDS: Class data sharing limits the malloc heap on Solaris
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8802
diff
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|
3778 product(uintx, SharedBaseAddress, LP64_ONLY(32*G) \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
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8802
diff
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|
3779 NOT_LP64(LINUX_ONLY(2*G) NOT_LINUX(0)), \ |
91bf0bdae37b
8008217: CDS: Class data sharing limits the malloc heap on Solaris
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|
3780 "Address to allocate shared memory region for class data") \ |
0 | 3781 \ |
2416
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2403
diff
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|
3782 diagnostic(bool, EnableInvokeDynamic, true, \ |
38fea01eb669
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2403
diff
changeset
|
3783 "support JSR 292 (method handles, invokedynamic, " \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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2403
diff
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|
3784 "anonymous classes") \ |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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2403
diff
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|
3785 \ |
3757
f8c9417e3571
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parents:
3745
diff
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|
3786 diagnostic(bool, PrintMethodHandleStubs, false, \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
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parents:
3745
diff
changeset
|
3787 "Print generated stub code for method handles") \ |
f8c9417e3571
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
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3745
diff
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|
3788 \ |
710 | 3789 develop(bool, TraceMethodHandles, false, \ |
3790 "trace internal method handle operations") \ | |
3791 \ | |
3792 diagnostic(bool, VerifyMethodHandles, trueInDebug, \ | |
3793 "perform extra checks when constructing method handles") \ | |
3794 \ | |
6266
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6199
diff
changeset
|
3795 diagnostic(bool, ShowHiddenFrames, false, \ |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6199
diff
changeset
|
3796 "show method handle implementation frames (usually hidden)") \ |
3388
a80577f854f9
7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents:
3384
diff
changeset
|
3797 \ |
1173
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3798 experimental(bool, TrustFinalNonStaticFields, false, \ |
73b22f919c34
6912065: final fields in objects need to support inlining optimizations for JSR 292
jrose
parents:
1157
diff
changeset
|
3799 "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
|
3800 \ |
12190
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3801 experimental(bool, FoldStableValues, false, \ |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3802 "Private flag to control optimizations for stable variables") \ |
edb5ab0f3fe5
8001107: @Stable annotation for constant folding of lazily evaluated variables
vlivanov
parents:
12154
diff
changeset
|
3803 \ |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3804 develop(bool, TraceInvokeDynamic, false, \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3805 "trace internal invoke dynamic operations") \ |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3806 \ |
0 | 3807 diagnostic(bool, PauseAtStartup, false, \ |
3808 "Causes the VM to pause at startup time and wait for the pause " \ | |
3809 "file to be removed (default: ./vm.paused.<pid>)") \ | |
3810 \ | |
3811 diagnostic(ccstr, PauseAtStartupFile, NULL, \ | |
3812 "The file to create and for whose removal to await when pausing " \ | |
3813 "at startup. (default: ./vm.paused.<pid>)") \ | |
3814 \ | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3815 diagnostic(bool, PauseAtExit, false, \ |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2265
diff
changeset
|
3816 "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
|
3817 \ |
0 | 3818 product(bool, ExtendedDTraceProbes, false, \ |
3819 "Enable performance-impacting dtrace probes") \ | |
3820 \ | |
3821 product(bool, DTraceMethodProbes, false, \ | |
3822 "Enable dtrace probes for method-entry and method-exit") \ | |
3823 \ | |
3824 product(bool, DTraceAllocProbes, false, \ | |
3825 "Enable dtrace probes for object allocation") \ | |
3826 \ | |
3827 product(bool, DTraceMonitorProbes, false, \ | |
3828 "Enable dtrace probes for monitor events") \ | |
3829 \ | |
3830 product(bool, RelaxAccessControlCheck, false, \ | |
3831 "Relax the access control checks in the verifier") \ | |
3832 \ | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3833 diagnostic(bool, PrintDTraceDOF, false, \ |
12836
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3834 "Print the DTrace DOF passed to the system for JSDT probes") \ |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
3835 \ |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6935
diff
changeset
|
3836 product(uintx, StringTableSize, defaultStringTableSize, \ |
2378 | 3837 "Number of buckets in the interned String table") \ |
3838 \ | |
12825
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
3839 experimental(uintx, SymbolTableSize, defaultSymbolTableSize, \ |
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
3840 "Number of buckets in the JVM internal Symbol table") \ |
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
3841 \ |
6934 | 3842 develop(bool, TraceDefaultMethods, false, \ |
3843 "Trace the default method processing steps") \ | |
3844 \ | |
3845 develop(bool, VerifyGenericSignatures, false, \ | |
3846 "Abort VM on erroneous or inconsistent generic signatures") \ | |
3847 \ | |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
443
diff
changeset
|
3848 product(bool, UseVMInterruptibleIO, false, \ |
0 | 3849 "(Unstable, Solaris-specific) Thread interrupt before or with " \ |
12836
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3850 "EINTR for I/O operations results in OS_INTRPT. The default " \ |
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3851 "value of this flag is true for JDK 6 and earlier") \ |
5915 | 3852 \ |
3853 diagnostic(bool, WhiteBoxAPI, false, \ | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3854 "Enable internal testing APIs") \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3855 \ |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
5979
diff
changeset
|
3856 product(bool, PrintGCCause, true, \ |
8702 | 3857 "Include GC cause in GC logging") \ |
3858 \ | |
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3859 product(bool , AllowNonVirtualCalls, false, \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3860 "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
|
3861 \ |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3862 diagnostic(ccstr, SharedArchiveFile, NULL, \ |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10269
diff
changeset
|
3863 "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
|
3864 \ |
9073
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3865 experimental(uintx, ArrayAllocatorMallocLimit, \ |
83f27710f5f7
7197666: java -d64 -version core dumps in a box with lots of memory
brutisso
parents:
9071
diff
changeset
|
3866 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
|
3867 "Allocation less than this value will be allocated " \ |
10405 | 3868 "using malloc. Larger allocations will use mmap.") \ |
3869 \ | |
14662
3c3953fb3f2a
8033380: Experimental VM flag to enforce access atomicity
shade
parents:
14500
diff
changeset
|
3870 experimental(bool, AlwaysAtomicAccesses, false, \ |
3c3953fb3f2a
8033380: Experimental VM flag to enforce access atomicity
shade
parents:
14500
diff
changeset
|
3871 "Accesses to all variables should always be atomic") \ |
3c3953fb3f2a
8033380: Experimental VM flag to enforce access atomicity
shade
parents:
14500
diff
changeset
|
3872 \ |
10405 | 3873 product(bool, EnableTracing, false, \ |
3874 "Enable event-based tracing") \ | |
12836
b4d8a3d4db73
8010506: Typos and errors in descriptions of vm options in globals.hpp
tamao
parents:
12287
diff
changeset
|
3875 \ |
10405 | 3876 product(bool, UseLockedTracing, false, \ |
3877 "Use locked-tracing when doing event-based tracing") | |
3878 | |
0 | 3879 /* |
3880 * Macros for factoring of globals | |
3881 */ | |
3882 | |
3883 // Interface macros | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3884 #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
|
3885 #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
|
3886 #define DECLARE_DIAGNOSTIC_FLAG(type, name, value, doc) extern "C" type name; |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3887 #define DECLARE_EXPERIMENTAL_FLAG(type, name, value, doc) extern "C" type name; |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3888 #define DECLARE_MANAGEABLE_FLAG(type, name, value, doc) extern "C" type name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3889 #define DECLARE_PRODUCT_RW_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3890 #ifdef PRODUCT |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3891 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type CONST_##name; const type name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3892 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type CONST_##name; const type name = pd_##name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3893 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type CONST_##name; |
0 | 3894 #else |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3895 #define DECLARE_DEVELOPER_FLAG(type, name, value, doc) extern "C" type name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3896 #define DECLARE_PD_DEVELOPER_FLAG(type, name, doc) extern "C" type name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3897 #define DECLARE_NOTPRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
0 | 3898 #endif |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3899 // Special LP64 flags, product only needed for now. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3900 #ifdef _LP64 |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3901 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) extern "C" type name; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3902 #else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3903 #define DECLARE_LP64_PRODUCT_FLAG(type, name, value, doc) const type name = value; |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3904 #endif // _LP64 |
0 | 3905 |
3906 // Implementation macros | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3907 #define MATERIALIZE_PRODUCT_FLAG(type, name, value, doc) type name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3908 #define MATERIALIZE_PD_PRODUCT_FLAG(type, name, doc) type name = pd_##name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3909 #define MATERIALIZE_DIAGNOSTIC_FLAG(type, name, value, doc) type name = value; |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3910 #define MATERIALIZE_EXPERIMENTAL_FLAG(type, name, value, doc) type name = value; |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3911 #define MATERIALIZE_MANAGEABLE_FLAG(type, name, value, doc) type name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3912 #define MATERIALIZE_PRODUCT_RW_FLAG(type, name, value, doc) type name = value; |
0 | 3913 #ifdef PRODUCT |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3914 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type CONST_##name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3915 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type CONST_##name = pd_##name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3916 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type CONST_##name = value; |
0 | 3917 #else |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3918 #define MATERIALIZE_DEVELOPER_FLAG(type, name, value, doc) type name = value; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3919 #define MATERIALIZE_PD_DEVELOPER_FLAG(type, name, doc) type name = pd_##name; |
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3920 #define MATERIALIZE_NOTPRODUCT_FLAG(type, name, value, doc) type name = value; |
0 | 3921 #endif |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3922 #ifdef _LP64 |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3923 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) type name = value; |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3924 #else |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3925 #define MATERIALIZE_LP64_PRODUCT_FLAG(type, name, value, doc) /* flag is constant */ |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
109
diff
changeset
|
3926 #endif // _LP64 |
0 | 3927 |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
348
diff
changeset
|
3928 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 | 3929 |
3930 RUNTIME_OS_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_NOTPRODUCT_FLAG) | |
1972 | 3931 |
6633
a5dd6e3ef9f3
6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp
twisti
parents:
6608
diff
changeset
|
3932 ARCH_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) |
a5dd6e3ef9f3
6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp
twisti
parents:
6608
diff
changeset
|
3933 |
4107
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3934 // Extensions |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3935 |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3936 #include "runtime/globals_ext.hpp" |
cd00eaeebef6
7117389: Add a framework for vendor-specific command line switch extensions to Hotspot
phh
parents:
4088
diff
changeset
|
3937 |
1972 | 3938 #endif // SHARE_VM_RUNTIME_GLOBALS_HPP |