Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/g1_globals.hpp @ 1349:547cbe6dacc5
6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
Reviewed-by: kvn
author | never |
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date | Thu, 01 Apr 2010 16:06:57 -0700 |
parents | a1c410de27e4 |
children | 56507bcd639e |
rev | line source |
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342 | 1 /* |
579 | 2 * Copyright 2001-2009 Sun Microsystems, Inc. All Rights Reserved. |
342 | 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // | |
26 // Defines all globals flags used by the garbage-first compiler. | |
27 // | |
28 | |
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29 #define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw) \ |
342 | 30 \ |
751 | 31 product(intx, G1ParallelGCAllocBufferSize, 8*K, \ |
342 | 32 "Size of parallel G1 allocation buffers in to-space.") \ |
33 \ | |
751 | 34 product(intx, G1ConfidencePercent, 50, \ |
342 | 35 "Confidence level for MMU/pause predictions") \ |
36 \ | |
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37 develop(intx, G1MarkingOverheadPercent, 0, \ |
342 | 38 "Overhead of concurrent marking") \ |
39 \ | |
751 | 40 develop(bool, G1Gen, true, \ |
342 | 41 "If true, it will enable the generational G1") \ |
42 \ | |
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43 develop(intx, G1GCPercent, 10, \ |
342 | 44 "The desired percent time spent on GC") \ |
45 \ | |
751 | 46 develop(intx, G1PolicyVerbose, 0, \ |
342 | 47 "The verbosity level on G1 policy decisions") \ |
48 \ | |
49 develop(bool, G1UseHRIntoRS, true, \ | |
50 "Determines whether the 'advanced' HR Into rem set is used.") \ | |
51 \ | |
52 develop(intx, G1MarkingVerboseLevel, 0, \ | |
53 "Level (0-4) of verboseness of the marking code") \ | |
54 \ | |
1044 | 55 develop(bool, G1PrintReachableAtInitialMark, false, \ |
56 "Reachable object dump at the initial mark pause") \ | |
57 \ | |
58 develop(bool, G1VerifyDuringGCPrintReachable, false, \ | |
59 "If conc mark verification fails, dump reachable objects") \ | |
60 \ | |
61 develop(ccstr, G1PrintReachableBaseFile, NULL, \ | |
62 "The base file name for the reachable object dumps") \ | |
342 | 63 \ |
64 develop(bool, G1TraceMarkStackOverflow, false, \ | |
65 "If true, extra debugging code for CM restart for ovflw.") \ | |
66 \ | |
67 develop(intx, G1PausesBtwnConcMark, -1, \ | |
68 "If positive, fixed number of pauses between conc markings") \ | |
69 \ | |
1282 | 70 diagnostic(bool, G1SummarizeConcMark, false, \ |
342 | 71 "Summarize concurrent mark info") \ |
72 \ | |
751 | 73 diagnostic(bool, G1SummarizeRSetStats, false, \ |
342 | 74 "Summarize remembered set processing info") \ |
75 \ | |
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76 diagnostic(intx, G1SummarizeRSetStatsPeriod, 0, \ |
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77 "The period (in number of GCs) at which we will generate " \ |
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78 "update buffer processing info " \ |
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79 "(0 means do not periodically generate this info); " \ |
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80 "it also requires -XX:+G1SummarizeRSetStats") \ |
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81 \ |
751 | 82 diagnostic(bool, G1SummarizeZFStats, false, \ |
342 | 83 "Summarize zero-filling info") \ |
84 \ | |
1282 | 85 diagnostic(bool, G1TraceConcRefinement, false, \ |
342 | 86 "Trace G1 concurrent refinement") \ |
87 \ | |
751 | 88 product(intx, G1MarkRegionStackSize, 1024 * 1024, \ |
342 | 89 "Size of the region stack for concurrent marking.") \ |
90 \ | |
91 develop(bool, G1ConcZeroFill, true, \ | |
92 "If true, run concurrent zero-filling thread") \ | |
93 \ | |
94 develop(intx, G1ConcZFMaxRegions, 1, \ | |
95 "Stop zero-filling when # of zf'd regions reaches") \ | |
96 \ | |
97 develop(bool, G1SATBBarrierPrintNullPreVals, false, \ | |
98 "If true, count frac of ptr writes with null pre-vals.") \ | |
99 \ | |
1282 | 100 product(intx, G1SATBBufferSize, 1*K, \ |
342 | 101 "Number of entries in an SATB log buffer.") \ |
102 \ | |
1282 | 103 develop(intx, G1SATBProcessCompletedThreshold, 20, \ |
342 | 104 "Number of completed buffers that triggers log processing.") \ |
105 \ | |
106 develop(intx, G1ExtraRegionSurvRate, 33, \ | |
107 "If the young survival rate is S, and there's room left in " \ | |
108 "to-space, we will allow regions whose survival rate is up to " \ | |
109 "S + (1 - S)*X, where X is this parameter (as a fraction.)") \ | |
110 \ | |
111 develop(intx, G1InitYoungSurvRatio, 50, \ | |
112 "Expected Survival Rate for newly allocated bytes") \ | |
113 \ | |
114 develop(bool, G1SATBPrintStubs, false, \ | |
115 "If true, print generated stubs for the SATB barrier") \ | |
116 \ | |
1282 | 117 experimental(intx, G1ExpandByPercentOfAvailable, 20, \ |
342 | 118 "When expanding, % of uncommitted space to claim.") \ |
119 \ | |
120 develop(bool, G1RSBarrierRegionFilter, true, \ | |
121 "If true, generate region filtering code in RS barrier") \ | |
122 \ | |
123 develop(bool, G1RSBarrierNullFilter, true, \ | |
124 "If true, generate null-pointer filtering code in RS barrier") \ | |
125 \ | |
126 develop(bool, G1PrintCTFilterStats, false, \ | |
127 "If true, print stats on RS filtering effectiveness") \ | |
128 \ | |
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129 develop(bool, G1DeferredRSUpdate, true, \ |
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130 "If true, use deferred RS updates") \ |
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131 \ |
342 | 132 develop(bool, G1RSLogCheckCardTable, false, \ |
133 "If true, verify that no dirty cards remain after RS log " \ | |
134 "processing.") \ | |
135 \ | |
136 develop(bool, G1RSCountHisto, false, \ | |
137 "If true, print a histogram of RS occupancies after each pause") \ | |
138 \ | |
139 develop(intx, G1PrintRegionLivenessInfo, 0, \ | |
140 "When > 0, print the occupancies of the <n> best and worst" \ | |
141 "regions.") \ | |
142 \ | |
143 develop(bool, G1PrintParCleanupStats, false, \ | |
144 "When true, print extra stats about parallel cleanup.") \ | |
145 \ | |
146 develop(bool, G1DisablePreBarrier, false, \ | |
147 "Disable generation of pre-barrier (i.e., marking barrier) ") \ | |
148 \ | |
149 develop(bool, G1DisablePostBarrier, false, \ | |
150 "Disable generation of post-barrier (i.e., RS barrier) ") \ | |
151 \ | |
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152 product(intx, G1UpdateBufferSize, 256, \ |
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153 "Size of an update buffer") \ |
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154 \ |
1282 | 155 product(intx, G1ConcRefinementYellowZone, 0, \ |
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156 "Number of enqueued update buffers that will " \ |
1111 | 157 "trigger concurrent processing. Will be selected ergonomically " \ |
158 "by default.") \ | |
159 \ | |
1282 | 160 product(intx, G1ConcRefinementRedZone, 0, \ |
1111 | 161 "Maximum number of enqueued update buffers before mutator " \ |
162 "threads start processing new ones instead of enqueueing them. " \ | |
163 "Will be selected ergonomically by default. Zero will disable " \ | |
164 "concurrent processing.") \ | |
165 \ | |
1282 | 166 product(intx, G1ConcRefinementGreenZone, 0, \ |
1111 | 167 "The number of update buffers that are left in the queue by the " \ |
168 "concurrent processing threads. Will be selected ergonomically " \ | |
169 "by default.") \ | |
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170 \ |
1282 | 171 product(intx, G1ConcRefinementServiceIntervalMillis, 300, \ |
1111 | 172 "The last concurrent refinement thread wakes up every " \ |
173 "specified number of milliseconds to do miscellaneous work.") \ | |
174 \ | |
1282 | 175 product(intx, G1ConcRefinementThresholdStep, 0, \ |
1111 | 176 "Each time the rset update queue increases by this amount " \ |
177 "activate the next refinement thread if available. " \ | |
178 "Will be selected ergonomically by default.") \ | |
179 \ | |
1282 | 180 product(intx, G1RSetUpdatingPauseTimePercent, 10, \ |
1111 | 181 "A target percentage of time that is allowed to be spend on " \ |
182 "process RS update buffers during the collection pause.") \ | |
183 \ | |
1282 | 184 product(bool, G1UseAdaptiveConcRefinement, true, \ |
1111 | 185 "Select green, yellow and red zones adaptively to meet the " \ |
186 "the pause requirements.") \ | |
342 | 187 \ |
188 develop(intx, G1ConcRSLogCacheSize, 10, \ | |
189 "Log base 2 of the length of conc RS hot-card cache.") \ | |
190 \ | |
751 | 191 develop(intx, G1ConcRSHotCardLimit, 4, \ |
342 | 192 "The threshold that defines (>=) a hot card.") \ |
193 \ | |
194 develop(bool, G1PrintOopAppls, false, \ | |
195 "When true, print applications of closures to external locs.") \ | |
196 \ | |
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197 develop(intx, G1RSetRegionEntriesBase, 256, \ |
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198 "Max number of regions in a fine-grain table per MB.") \ |
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199 \ |
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200 product(intx, G1RSetRegionEntries, 0, \ |
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201 "Max number of regions for which we keep bitmaps." \ |
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202 "Will be set ergonomically by default") \ |
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203 \ |
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204 develop(intx, G1RSetSparseRegionEntriesBase, 4, \ |
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205 "Max number of entries per region in a sparse table " \ |
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206 "per MB.") \ |
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207 \ |
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208 product(intx, G1RSetSparseRegionEntries, 0, \ |
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209 "Max number of entries per region in a sparse table." \ |
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210 "Will be set ergonomically by default.") \ |
342 | 211 \ |
212 develop(bool, G1RecordHRRSOops, false, \ | |
213 "When true, record recent calls to rem set operations.") \ | |
214 \ | |
215 develop(bool, G1RecordHRRSEvents, false, \ | |
216 "When true, record recent calls to rem set operations.") \ | |
217 \ | |
218 develop(intx, G1MaxVerifyFailures, -1, \ | |
219 "The maximum number of verification failrues to print. " \ | |
220 "-1 means print all.") \ | |
221 \ | |
222 develop(bool, G1ScrubRemSets, true, \ | |
223 "When true, do RS scrubbing after cleanup.") \ | |
224 \ | |
225 develop(bool, G1RSScrubVerbose, false, \ | |
226 "When true, do RS scrubbing with verbose output.") \ | |
227 \ | |
228 develop(bool, G1YoungSurvRateVerbose, false, \ | |
229 "print out the survival rate of young regions according to age.") \ | |
230 \ | |
231 develop(intx, G1YoungSurvRateNumRegionsSummary, 0, \ | |
232 "the number of regions for which we'll print a surv rate " \ | |
233 "summary.") \ | |
234 \ | |
1282 | 235 develop(bool, G1UseScanOnlyPrefix, false, \ |
342 | 236 "It determines whether the system will calculate an optimum " \ |
237 "scan-only set.") \ | |
238 \ | |
1282 | 239 product(intx, G1ReservePercent, 10, \ |
342 | 240 "It determines the minimum reserve we should have in the heap " \ |
241 "to minimize the probability of promotion failure.") \ | |
242 \ | |
1282 | 243 diagnostic(bool, G1PrintHeapRegions, false, \ |
342 | 244 "If set G1 will print information on which regions are being " \ |
245 "allocated and which are reclaimed.") \ | |
246 \ | |
247 develop(bool, G1HRRSUseSparseTable, true, \ | |
248 "When true, use sparse table to save space.") \ | |
249 \ | |
250 develop(bool, G1HRRSFlushLogBuffersOnVerify, false, \ | |
251 "Forces flushing of log buffers before verification.") \ | |
252 \ | |
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253 develop(bool, G1FailOnFPError, false, \ |
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254 "When set, G1 will fail when it encounters an FP 'error', " \ |
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255 "so as to allow debugging") \ |
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256 \ |
751 | 257 develop(bool, G1FixedTenuringThreshold, false, \ |
545 | 258 "When set, G1 will not adjust the tenuring threshold") \ |
259 \ | |
751 | 260 develop(bool, G1FixedEdenSize, false, \ |
545 | 261 "When set, G1 will not allocate unused survivor space regions") \ |
262 \ | |
751 | 263 develop(uintx, G1FixedSurvivorSpaceSize, 0, \ |
545 | 264 "If non-0 is the size of the G1 survivor space, " \ |
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265 "otherwise SurvivorRatio is used to determine the size") \ |
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266 \ |
1282 | 267 product(bool, G1UseFixedWindowMMUTracker, false, \ |
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268 "If the MMU tracker's memory is full, forget the oldest entry") \ |
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269 \ |
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270 product(uintx, G1HeapRegionSize, 0, \ |
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271 "Size of the G1 regions.") \ |
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272 \ |
1282 | 273 experimental(bool, G1UseParallelRSetUpdating, false, \ |
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274 "Enables the parallelization of remembered set updating " \ |
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275 "during evacuation pauses") \ |
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276 \ |
1282 | 277 experimental(bool, G1UseParallelRSetScanning, false, \ |
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278 "Enables the parallelization of remembered set scanning " \ |
794 | 279 "during evacuation pauses") \ |
280 \ | |
1282 | 281 product(uintx, G1ConcRefinementThreads, 0, \ |
794 | 282 "If non-0 is the number of parallel rem set update threads, " \ |
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283 "otherwise the value is determined ergonomically.") \ |
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284 \ |
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285 develop(intx, G1CardCountCacheExpandThreshold, 16, \ |
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286 "Expand the card count cache if the number of collisions for " \ |
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287 "a particular entry exceeds this value.") \ |
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288 \ |
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289 develop(bool, G1VerifyCTCleanup, false, \ |
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290 "Verify card table cleanup.") \ |
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291 \ |
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292 product(uintx, G1RSetScanBlockSize, 64, \ |
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293 "Size of a work unit of cards claimed by a worker thread" \ |
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294 "during RSet scanning.") \ |
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295 \ |
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296 develop(bool, ReduceInitialCardMarksForG1, false, \ |
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297 "When ReduceInitialCardMarks is true, this flag setting " \ |
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298 " controls whether G1 allows the RICM optimization") |
342 | 299 |
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300 G1_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) |