Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/g1_globals.hpp @ 1246:deada8912c54
6914402: G1: assert(!is_young_card(cached_ptr),"shouldn't get a card in young region")
Summary: Invalid assert. Filter cards evicted from the card count cache instead.
Reviewed-by: apetrusenko, tonyp
author | johnc |
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date | Tue, 02 Feb 2010 18:39:50 -0800 |
parents | 34fb2662f6c2 |
children | 0414c1049f15 |
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 \ | |
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40 product(uintx, G1YoungGenSize, 0, \ |
342 | 41 "Size of the G1 young generation, 0 is the adaptive policy") \ |
42 \ | |
751 | 43 develop(bool, G1Gen, true, \ |
342 | 44 "If true, it will enable the generational G1") \ |
45 \ | |
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46 develop(intx, G1GCPercent, 10, \ |
342 | 47 "The desired percent time spent on GC") \ |
48 \ | |
751 | 49 develop(intx, G1PolicyVerbose, 0, \ |
342 | 50 "The verbosity level on G1 policy decisions") \ |
51 \ | |
52 develop(bool, G1UseHRIntoRS, true, \ | |
53 "Determines whether the 'advanced' HR Into rem set is used.") \ | |
54 \ | |
55 develop(intx, G1MarkingVerboseLevel, 0, \ | |
56 "Level (0-4) of verboseness of the marking code") \ | |
57 \ | |
1044 | 58 develop(bool, G1PrintReachableAtInitialMark, false, \ |
59 "Reachable object dump at the initial mark pause") \ | |
60 \ | |
61 develop(bool, G1VerifyDuringGCPrintReachable, false, \ | |
62 "If conc mark verification fails, dump reachable objects") \ | |
63 \ | |
64 develop(ccstr, G1PrintReachableBaseFile, NULL, \ | |
65 "The base file name for the reachable object dumps") \ | |
342 | 66 \ |
67 develop(bool, G1TraceMarkStackOverflow, false, \ | |
68 "If true, extra debugging code for CM restart for ovflw.") \ | |
69 \ | |
70 develop(intx, G1PausesBtwnConcMark, -1, \ | |
71 "If positive, fixed number of pauses between conc markings") \ | |
72 \ | |
751 | 73 diagnostic(bool, G1SummarizeConcurrentMark, false, \ |
342 | 74 "Summarize concurrent mark info") \ |
75 \ | |
751 | 76 diagnostic(bool, G1SummarizeRSetStats, false, \ |
342 | 77 "Summarize remembered set processing info") \ |
78 \ | |
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79 diagnostic(intx, G1SummarizeRSetStatsPeriod, 0, \ |
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80 "The period (in number of GCs) at which we will generate " \ |
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81 "update buffer processing info " \ |
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82 "(0 means do not periodically generate this info); " \ |
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83 "it also requires -XX:+G1SummarizeRSetStats") \ |
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84 \ |
751 | 85 diagnostic(bool, G1SummarizeZFStats, false, \ |
342 | 86 "Summarize zero-filling info") \ |
87 \ | |
1111 | 88 diagnostic(bool, G1TraceConcurrentRefinement, false, \ |
342 | 89 "Trace G1 concurrent refinement") \ |
90 \ | |
751 | 91 product(intx, G1MarkStackSize, 2 * 1024 * 1024, \ |
342 | 92 "Size of the mark stack for concurrent marking.") \ |
93 \ | |
751 | 94 product(intx, G1MarkRegionStackSize, 1024 * 1024, \ |
342 | 95 "Size of the region stack for concurrent marking.") \ |
96 \ | |
97 develop(bool, G1ConcZeroFill, true, \ | |
98 "If true, run concurrent zero-filling thread") \ | |
99 \ | |
100 develop(intx, G1ConcZFMaxRegions, 1, \ | |
101 "Stop zero-filling when # of zf'd regions reaches") \ | |
102 \ | |
103 product(intx, G1SteadyStateUsed, 90, \ | |
104 "If non-0, try to maintain 'used' at this pct (of max)") \ | |
105 \ | |
106 product(intx, G1SteadyStateUsedDelta, 30, \ | |
107 "If G1SteadyStateUsed is non-0, then do pause this number of " \ | |
108 "of percentage points earlier if no marking is in progress.") \ | |
109 \ | |
110 develop(bool, G1SATBBarrierPrintNullPreVals, false, \ | |
111 "If true, count frac of ptr writes with null pre-vals.") \ | |
112 \ | |
113 product(intx, G1SATBLogBufferSize, 1*K, \ | |
114 "Number of entries in an SATB log buffer.") \ | |
115 \ | |
116 product(intx, G1SATBProcessCompletedThreshold, 20, \ | |
117 "Number of completed buffers that triggers log processing.") \ | |
118 \ | |
119 develop(intx, G1ExtraRegionSurvRate, 33, \ | |
120 "If the young survival rate is S, and there's room left in " \ | |
121 "to-space, we will allow regions whose survival rate is up to " \ | |
122 "S + (1 - S)*X, where X is this parameter (as a fraction.)") \ | |
123 \ | |
124 develop(intx, G1InitYoungSurvRatio, 50, \ | |
125 "Expected Survival Rate for newly allocated bytes") \ | |
126 \ | |
127 develop(bool, G1SATBPrintStubs, false, \ | |
128 "If true, print generated stubs for the SATB barrier") \ | |
129 \ | |
751 | 130 product(intx, G1ExpandByPercentOfAvailable, 20, \ |
342 | 131 "When expanding, % of uncommitted space to claim.") \ |
132 \ | |
133 develop(bool, G1RSBarrierRegionFilter, true, \ | |
134 "If true, generate region filtering code in RS barrier") \ | |
135 \ | |
136 develop(bool, G1RSBarrierNullFilter, true, \ | |
137 "If true, generate null-pointer filtering code in RS barrier") \ | |
138 \ | |
139 develop(bool, G1PrintCTFilterStats, false, \ | |
140 "If true, print stats on RS filtering effectiveness") \ | |
141 \ | |
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142 develop(bool, G1DeferredRSUpdate, true, \ |
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143 "If true, use deferred RS updates") \ |
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144 \ |
342 | 145 develop(bool, G1RSLogCheckCardTable, false, \ |
146 "If true, verify that no dirty cards remain after RS log " \ | |
147 "processing.") \ | |
148 \ | |
149 develop(bool, G1RSCountHisto, false, \ | |
150 "If true, print a histogram of RS occupancies after each pause") \ | |
151 \ | |
152 develop(intx, G1PrintRegionLivenessInfo, 0, \ | |
153 "When > 0, print the occupancies of the <n> best and worst" \ | |
154 "regions.") \ | |
155 \ | |
156 develop(bool, G1PrintParCleanupStats, false, \ | |
157 "When true, print extra stats about parallel cleanup.") \ | |
158 \ | |
159 develop(bool, G1DisablePreBarrier, false, \ | |
160 "Disable generation of pre-barrier (i.e., marking barrier) ") \ | |
161 \ | |
162 develop(bool, G1DisablePostBarrier, false, \ | |
163 "Disable generation of post-barrier (i.e., RS barrier) ") \ | |
164 \ | |
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165 product(intx, G1UpdateBufferSize, 256, \ |
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166 "Size of an update buffer") \ |
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167 \ |
1111 | 168 product(intx, G1ConcRefineYellowZone, 0, \ |
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169 "Number of enqueued update buffers that will " \ |
1111 | 170 "trigger concurrent processing. Will be selected ergonomically " \ |
171 "by default.") \ | |
172 \ | |
173 product(intx, G1ConcRefineRedZone, 0, \ | |
174 "Maximum number of enqueued update buffers before mutator " \ | |
175 "threads start processing new ones instead of enqueueing them. " \ | |
176 "Will be selected ergonomically by default. Zero will disable " \ | |
177 "concurrent processing.") \ | |
178 \ | |
179 product(intx, G1ConcRefineGreenZone, 0, \ | |
180 "The number of update buffers that are left in the queue by the " \ | |
181 "concurrent processing threads. Will be selected ergonomically " \ | |
182 "by default.") \ | |
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183 \ |
1111 | 184 product(intx, G1ConcRefineServiceInterval, 300, \ |
185 "The last concurrent refinement thread wakes up every " \ | |
186 "specified number of milliseconds to do miscellaneous work.") \ | |
187 \ | |
188 product(intx, G1ConcRefineThresholdStep, 0, \ | |
189 "Each time the rset update queue increases by this amount " \ | |
190 "activate the next refinement thread if available. " \ | |
191 "Will be selected ergonomically by default.") \ | |
192 \ | |
193 product(intx, G1RSUpdatePauseFractionPercent, 10, \ | |
194 "A target percentage of time that is allowed to be spend on " \ | |
195 "process RS update buffers during the collection pause.") \ | |
196 \ | |
197 product(bool, G1AdaptiveConcRefine, true, \ | |
198 "Select green, yellow and red zones adaptively to meet the " \ | |
199 "the pause requirements.") \ | |
342 | 200 \ |
201 develop(intx, G1ConcRSLogCacheSize, 10, \ | |
202 "Log base 2 of the length of conc RS hot-card cache.") \ | |
203 \ | |
751 | 204 develop(intx, G1ConcRSHotCardLimit, 4, \ |
342 | 205 "The threshold that defines (>=) a hot card.") \ |
206 \ | |
207 develop(bool, G1PrintOopAppls, false, \ | |
208 "When true, print applications of closures to external locs.") \ | |
209 \ | |
751 | 210 develop(intx, G1LogRSRegionEntries, 7, \ |
342 | 211 "Log_2 of max number of regions for which we keep bitmaps.") \ |
212 \ | |
213 develop(bool, G1RecordHRRSOops, false, \ | |
214 "When true, record recent calls to rem set operations.") \ | |
215 \ | |
216 develop(bool, G1RecordHRRSEvents, false, \ | |
217 "When true, record recent calls to rem set operations.") \ | |
218 \ | |
219 develop(intx, G1MaxVerifyFailures, -1, \ | |
220 "The maximum number of verification failrues to print. " \ | |
221 "-1 means print all.") \ | |
222 \ | |
223 develop(bool, G1ScrubRemSets, true, \ | |
224 "When true, do RS scrubbing after cleanup.") \ | |
225 \ | |
226 develop(bool, G1RSScrubVerbose, false, \ | |
227 "When true, do RS scrubbing with verbose output.") \ | |
228 \ | |
229 develop(bool, G1YoungSurvRateVerbose, false, \ | |
230 "print out the survival rate of young regions according to age.") \ | |
231 \ | |
232 develop(intx, G1YoungSurvRateNumRegionsSummary, 0, \ | |
233 "the number of regions for which we'll print a surv rate " \ | |
234 "summary.") \ | |
235 \ | |
236 product(bool, G1UseScanOnlyPrefix, false, \ | |
237 "It determines whether the system will calculate an optimum " \ | |
238 "scan-only set.") \ | |
239 \ | |
751 | 240 product(intx, G1MinReservePercent, 10, \ |
342 | 241 "It determines the minimum reserve we should have in the heap " \ |
242 "to minimize the probability of promotion failure.") \ | |
243 \ | |
751 | 244 diagnostic(bool, G1PrintRegions, false, \ |
342 | 245 "If set G1 will print information on which regions are being " \ |
246 "allocated and which are reclaimed.") \ | |
247 \ | |
248 develop(bool, G1HRRSUseSparseTable, true, \ | |
249 "When true, use sparse table to save space.") \ | |
250 \ | |
251 develop(bool, G1HRRSFlushLogBuffersOnVerify, false, \ | |
252 "Forces flushing of log buffers before verification.") \ | |
253 \ | |
751 | 254 product(bool, G1UseSurvivorSpaces, true, \ |
545 | 255 "When true, use survivor space.") \ |
256 \ | |
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257 develop(bool, G1FailOnFPError, false, \ |
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258 "When set, G1 will fail when it encounters an FP 'error', " \ |
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259 "so as to allow debugging") \ |
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260 \ |
751 | 261 develop(bool, G1FixedTenuringThreshold, false, \ |
545 | 262 "When set, G1 will not adjust the tenuring threshold") \ |
263 \ | |
751 | 264 develop(bool, G1FixedEdenSize, false, \ |
545 | 265 "When set, G1 will not allocate unused survivor space regions") \ |
266 \ | |
751 | 267 develop(uintx, G1FixedSurvivorSpaceSize, 0, \ |
545 | 268 "If non-0 is the size of the G1 survivor space, " \ |
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269 "otherwise SurvivorRatio is used to determine the size") \ |
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270 \ |
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271 product(bool, G1ForgetfulMMUTracker, false, \ |
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272 "If the MMU tracker's memory is full, forget the oldest entry") \ |
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273 \ |
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274 product(uintx, G1HeapRegionSize, 0, \ |
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275 "Size of the G1 regions.") \ |
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276 \ |
751 | 277 experimental(bool, G1ParallelRSetUpdatingEnabled, false, \ |
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278 "Enables the parallelization of remembered set updating " \ |
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279 "during evacuation pauses") \ |
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280 \ |
751 | 281 experimental(bool, G1ParallelRSetScanningEnabled, false, \ |
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282 "Enables the parallelization of remembered set scanning " \ |
794 | 283 "during evacuation pauses") \ |
284 \ | |
285 product(uintx, G1ParallelRSetThreads, 0, \ | |
286 "If non-0 is the number of parallel rem set update threads, " \ | |
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287 "otherwise the value is determined ergonomically.") \ |
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288 \ |
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289 develop(intx, G1CardCountCacheExpandThreshold, 16, \ |
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290 "Expand the card count cache if the number of collisions for " \ |
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291 "a particular entry exceeds this value.") \ |
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292 \ |
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293 develop(bool, G1VerifyCTCleanup, false, \ |
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294 "Verify card table cleanup.") \ |
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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) |