Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/g1/g1_globals.hpp @ 6007:5c86f8211d1e
7160728: Introduce an extra logging level for G1 logging
Summary: Added log levels "fine", "finer" and "finest". Let PrintGC map to "fine" and PrintGCDetails map to "finer". Separated out the per worker information in the G1 logging to the "finest" level.
Reviewed-by: stefank, jwilhelm, tonyp, johnc
| author | brutisso |
|---|---|
| date | Fri, 13 Apr 2012 01:59:38 +0200 |
| parents | 2a0172480595 |
| children | f7a8920427a6 |
| rev | line source |
|---|---|
| 342 | 1 /* |
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2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. 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 * | |
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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. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP | |
| 27 | |
| 28 #include "runtime/globals.hpp" | |
| 342 | 29 // |
| 30 // Defines all globals flags used by the garbage-first compiler. | |
| 31 // | |
| 32 | |
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33 #define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw) \ |
| 342 | 34 \ |
| 751 | 35 product(intx, G1ConfidencePercent, 50, \ |
| 342 | 36 "Confidence level for MMU/pause predictions") \ |
| 37 \ | |
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38 develop(intx, G1MarkingOverheadPercent, 0, \ |
| 342 | 39 "Overhead of concurrent marking") \ |
| 40 \ | |
| 41 develop(intx, G1MarkingVerboseLevel, 0, \ | |
| 42 "Level (0-4) of verboseness of the marking code") \ | |
| 43 \ | |
| 1044 | 44 develop(bool, G1PrintReachableAtInitialMark, false, \ |
| 45 "Reachable object dump at the initial mark pause") \ | |
| 46 \ | |
| 47 develop(bool, G1VerifyDuringGCPrintReachable, false, \ | |
| 48 "If conc mark verification fails, dump reachable objects") \ | |
| 49 \ | |
| 50 develop(ccstr, G1PrintReachableBaseFile, NULL, \ | |
| 51 "The base file name for the reachable object dumps") \ | |
| 342 | 52 \ |
| 53 develop(bool, G1TraceMarkStackOverflow, false, \ | |
| 54 "If true, extra debugging code for CM restart for ovflw.") \ | |
| 55 \ | |
| 1282 | 56 diagnostic(bool, G1SummarizeConcMark, false, \ |
| 342 | 57 "Summarize concurrent mark info") \ |
| 58 \ | |
| 751 | 59 diagnostic(bool, G1SummarizeRSetStats, false, \ |
| 342 | 60 "Summarize remembered set processing info") \ |
| 61 \ | |
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62 diagnostic(intx, G1SummarizeRSetStatsPeriod, 0, \ |
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63 "The period (in number of GCs) at which we will generate " \ |
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64 "update buffer processing info " \ |
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65 "(0 means do not periodically generate this info); " \ |
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66 "it also requires -XX:+G1SummarizeRSetStats") \ |
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67 \ |
| 1282 | 68 diagnostic(bool, G1TraceConcRefinement, false, \ |
| 342 | 69 "Trace G1 concurrent refinement") \ |
| 70 \ | |
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71 product(double, G1ConcMarkStepDurationMillis, 10.0, \ |
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72 "Target duration of individual concurrent marking steps " \ |
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73 "in milliseconds.") \ |
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74 \ |
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75 product(intx, G1RefProcDrainInterval, 10, \ |
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76 "The number of discovered reference objects to process before " \ |
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77 "draining concurrent marking work queues.") \ |
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78 \ |
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79 experimental(bool, G1UseConcMarkReferenceProcessing, true, \ |
| 2436 | 80 "If true, enable reference discovery during concurrent " \ |
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81 "marking and reference processing at the end of remark.") \ |
| 342 | 82 \ |
| 1282 | 83 product(intx, G1SATBBufferSize, 1*K, \ |
| 342 | 84 "Number of entries in an SATB log buffer.") \ |
| 85 \ | |
| 1282 | 86 develop(intx, G1SATBProcessCompletedThreshold, 20, \ |
| 342 | 87 "Number of completed buffers that triggers log processing.") \ |
| 88 \ | |
| 2149 | 89 product(uintx, G1SATBBufferEnqueueingThresholdPercent, 60, \ |
| 90 "Before enqueueing them, each mutator thread tries to do some " \ | |
| 91 "filtering on the SATB buffers it generates. If post-filtering " \ | |
| 92 "the percentage of retained entries is over this threshold " \ | |
| 93 "the buffer will be enqueued for processing. A value of 0 " \ | |
| 94 "specifies that mutator threads should not do such filtering.") \ | |
| 95 \ | |
| 342 | 96 develop(intx, G1ExtraRegionSurvRate, 33, \ |
| 97 "If the young survival rate is S, and there's room left in " \ | |
| 98 "to-space, we will allow regions whose survival rate is up to " \ | |
| 99 "S + (1 - S)*X, where X is this parameter (as a fraction.)") \ | |
| 100 \ | |
| 101 develop(intx, G1InitYoungSurvRatio, 50, \ | |
| 102 "Expected Survival Rate for newly allocated bytes") \ | |
| 103 \ | |
| 104 develop(bool, G1SATBPrintStubs, false, \ | |
| 105 "If true, print generated stubs for the SATB barrier") \ | |
| 106 \ | |
| 1282 | 107 experimental(intx, G1ExpandByPercentOfAvailable, 20, \ |
| 342 | 108 "When expanding, % of uncommitted space to claim.") \ |
| 109 \ | |
| 110 develop(bool, G1RSBarrierRegionFilter, true, \ | |
| 111 "If true, generate region filtering code in RS barrier") \ | |
| 112 \ | |
| 113 develop(bool, G1RSBarrierNullFilter, true, \ | |
| 114 "If true, generate null-pointer filtering code in RS barrier") \ | |
| 115 \ | |
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116 develop(bool, G1DeferredRSUpdate, true, \ |
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117 "If true, use deferred RS updates") \ |
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118 \ |
| 342 | 119 develop(bool, G1RSLogCheckCardTable, false, \ |
| 120 "If true, verify that no dirty cards remain after RS log " \ | |
| 121 "processing.") \ | |
| 122 \ | |
| 123 develop(bool, G1RSCountHisto, false, \ | |
| 124 "If true, print a histogram of RS occupancies after each pause") \ | |
| 125 \ | |
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126 diagnostic(bool, G1PrintRegionLivenessInfo, false, \ |
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127 "Prints the liveness information for all regions in the heap " \ |
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128 "at the end of a marking cycle.") \ |
| 342 | 129 \ |
| 130 develop(bool, G1PrintParCleanupStats, false, \ | |
| 131 "When true, print extra stats about parallel cleanup.") \ | |
| 132 \ | |
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133 product(intx, G1UpdateBufferSize, 256, \ |
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134 "Size of an update buffer") \ |
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135 \ |
| 1282 | 136 product(intx, G1ConcRefinementYellowZone, 0, \ |
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137 "Number of enqueued update buffers that will " \ |
| 1111 | 138 "trigger concurrent processing. Will be selected ergonomically " \ |
| 139 "by default.") \ | |
| 140 \ | |
| 1282 | 141 product(intx, G1ConcRefinementRedZone, 0, \ |
| 1111 | 142 "Maximum number of enqueued update buffers before mutator " \ |
| 143 "threads start processing new ones instead of enqueueing them. " \ | |
| 144 "Will be selected ergonomically by default. Zero will disable " \ | |
| 145 "concurrent processing.") \ | |
| 146 \ | |
| 1282 | 147 product(intx, G1ConcRefinementGreenZone, 0, \ |
| 1111 | 148 "The number of update buffers that are left in the queue by the " \ |
| 149 "concurrent processing threads. Will be selected ergonomically " \ | |
| 150 "by default.") \ | |
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151 \ |
| 1282 | 152 product(intx, G1ConcRefinementServiceIntervalMillis, 300, \ |
| 1111 | 153 "The last concurrent refinement thread wakes up every " \ |
| 154 "specified number of milliseconds to do miscellaneous work.") \ | |
| 155 \ | |
| 1282 | 156 product(intx, G1ConcRefinementThresholdStep, 0, \ |
| 1111 | 157 "Each time the rset update queue increases by this amount " \ |
| 158 "activate the next refinement thread if available. " \ | |
| 159 "Will be selected ergonomically by default.") \ | |
| 160 \ | |
| 1282 | 161 product(intx, G1RSetUpdatingPauseTimePercent, 10, \ |
| 1111 | 162 "A target percentage of time that is allowed to be spend on " \ |
| 163 "process RS update buffers during the collection pause.") \ | |
| 164 \ | |
| 1282 | 165 product(bool, G1UseAdaptiveConcRefinement, true, \ |
| 1111 | 166 "Select green, yellow and red zones adaptively to meet the " \ |
| 167 "the pause requirements.") \ | |
| 342 | 168 \ |
| 169 develop(intx, G1ConcRSLogCacheSize, 10, \ | |
| 170 "Log base 2 of the length of conc RS hot-card cache.") \ | |
| 171 \ | |
| 751 | 172 develop(intx, G1ConcRSHotCardLimit, 4, \ |
| 342 | 173 "The threshold that defines (>=) a hot card.") \ |
| 174 \ | |
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175 develop(intx, G1MaxHotCardCountSizePercent, 25, \ |
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176 "The maximum size of the hot card count cache as a " \ |
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177 "percentage of the number of cards for the maximum heap.") \ |
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178 \ |
| 342 | 179 develop(bool, G1PrintOopAppls, false, \ |
| 180 "When true, print applications of closures to external locs.") \ | |
| 181 \ | |
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182 develop(intx, G1RSetRegionEntriesBase, 256, \ |
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183 "Max number of regions in a fine-grain table per MB.") \ |
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184 \ |
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185 product(intx, G1RSetRegionEntries, 0, \ |
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186 "Max number of regions for which we keep bitmaps." \ |
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187 "Will be set ergonomically by default") \ |
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188 \ |
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189 develop(intx, G1RSetSparseRegionEntriesBase, 4, \ |
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190 "Max number of entries per region in a sparse table " \ |
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191 "per MB.") \ |
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192 \ |
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193 product(intx, G1RSetSparseRegionEntries, 0, \ |
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194 "Max number of entries per region in a sparse table." \ |
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195 "Will be set ergonomically by default.") \ |
| 342 | 196 \ |
| 197 develop(bool, G1RecordHRRSOops, false, \ | |
| 198 "When true, record recent calls to rem set operations.") \ | |
| 199 \ | |
| 200 develop(bool, G1RecordHRRSEvents, false, \ | |
| 201 "When true, record recent calls to rem set operations.") \ | |
| 202 \ | |
| 203 develop(intx, G1MaxVerifyFailures, -1, \ | |
| 204 "The maximum number of verification failrues to print. " \ | |
| 205 "-1 means print all.") \ | |
| 206 \ | |
| 207 develop(bool, G1ScrubRemSets, true, \ | |
| 208 "When true, do RS scrubbing after cleanup.") \ | |
| 209 \ | |
| 210 develop(bool, G1RSScrubVerbose, false, \ | |
| 211 "When true, do RS scrubbing with verbose output.") \ | |
| 212 \ | |
| 213 develop(bool, G1YoungSurvRateVerbose, false, \ | |
| 214 "print out the survival rate of young regions according to age.") \ | |
| 215 \ | |
| 216 develop(intx, G1YoungSurvRateNumRegionsSummary, 0, \ | |
| 217 "the number of regions for which we'll print a surv rate " \ | |
| 218 "summary.") \ | |
| 219 \ | |
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220 product(uintx, G1ReservePercent, 10, \ |
| 342 | 221 "It determines the minimum reserve we should have in the heap " \ |
| 222 "to minimize the probability of promotion failure.") \ | |
| 223 \ | |
| 1282 | 224 diagnostic(bool, G1PrintHeapRegions, false, \ |
| 342 | 225 "If set G1 will print information on which regions are being " \ |
| 226 "allocated and which are reclaimed.") \ | |
| 227 \ | |
| 228 develop(bool, G1HRRSUseSparseTable, true, \ | |
| 229 "When true, use sparse table to save space.") \ | |
| 230 \ | |
| 231 develop(bool, G1HRRSFlushLogBuffersOnVerify, false, \ | |
| 232 "Forces flushing of log buffers before verification.") \ | |
| 233 \ | |
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234 develop(bool, G1FailOnFPError, false, \ |
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235 "When set, G1 will fail when it encounters an FP 'error', " \ |
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236 "so as to allow debugging") \ |
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237 \ |
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238 product(uintx, G1HeapRegionSize, 0, \ |
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239 "Size of the G1 regions.") \ |
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240 \ |
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241 experimental(bool, G1UseParallelRSetUpdating, true, \ |
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242 "Enables the parallelization of remembered set updating " \ |
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243 "during evacuation pauses") \ |
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244 \ |
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245 experimental(bool, G1UseParallelRSetScanning, true, \ |
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246 "Enables the parallelization of remembered set scanning " \ |
| 794 | 247 "during evacuation pauses") \ |
| 248 \ | |
| 1282 | 249 product(uintx, G1ConcRefinementThreads, 0, \ |
| 794 | 250 "If non-0 is the number of parallel rem set update threads, " \ |
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251 "otherwise the value is determined ergonomically.") \ |
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252 \ |
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253 develop(intx, G1CardCountCacheExpandThreshold, 16, \ |
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254 "Expand the card count cache if the number of collisions for " \ |
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255 "a particular entry exceeds this value.") \ |
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256 \ |
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257 develop(bool, G1VerifyCTCleanup, false, \ |
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258 "Verify card table cleanup.") \ |
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259 \ |
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260 product(uintx, G1RSetScanBlockSize, 64, \ |
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261 "Size of a work unit of cards claimed by a worker thread" \ |
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262 "during RSet scanning.") \ |
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263 \ |
| 2152 | 264 develop(uintx, G1SecondaryFreeListAppendLength, 5, \ |
| 265 "The number of regions we will add to the secondary free list " \ | |
| 266 "at every append operation") \ | |
| 267 \ | |
| 268 develop(bool, G1ConcRegionFreeingVerbose, false, \ | |
| 269 "Enables verboseness during concurrent region freeing") \ | |
| 270 \ | |
| 271 develop(bool, G1StressConcRegionFreeing, false, \ | |
| 272 "It stresses the concurrent region freeing operation") \ | |
| 273 \ | |
| 274 develop(uintx, G1StressConcRegionFreeingDelayMillis, 0, \ | |
| 275 "Artificial delay during concurrent region freeing") \ | |
| 276 \ | |
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277 develop(uintx, G1DummyRegionsPerGC, 0, \ |
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278 "The number of dummy regions G1 will allocate at the end of " \ |
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279 "each evacuation pause in order to artificially fill up the " \ |
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280 "heap and stress the marking implementation.") \ |
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281 \ |
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282 develop(bool, G1ExitOnExpansionFailure, false, \ |
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283 "Raise a fatal VM exit out of memory failure in the event " \ |
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284 " that heap expansion fails due to running out of swap.") \ |
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285 \ |
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286 develop(uintx, G1ConcMarkForceOverflow, 0, \ |
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287 "The number of times we'll force an overflow during " \ |
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288 "concurrent marking") \ |
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289 \ |
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290 develop(uintx, G1DefaultMinNewGenPercent, 20, \ |
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291 "Percentage (0-100) of the heap size to use as minimum " \ |
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292 "young gen size.") \ |
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293 \ |
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294 develop(uintx, G1DefaultMaxNewGenPercent, 80, \ |
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295 "Percentage (0-100) of the heap size to use as maximum " \ |
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296 "young gen size.") \ |
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297 \ |
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298 develop(uintx, G1OldCSetRegionLiveThresholdPercent, 90, \ |
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299 "Threshold for regions to be added to the collection set. " \ |
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300 "Regions with more live bytes that this will not be collected.") \ |
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301 \ |
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302 product(uintx, G1HeapWastePercent, 5, \ |
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303 "Amount of space, expressed as a percentage of the heap size, " \ |
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304 "that G1 is willing not to collect to avoid expensive GCs.") \ |
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305 \ |
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306 product(uintx, G1MixedGCCountTarget, 4, \ |
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307 "The target number of mixed GCs after a marking cycle.") \ |
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308 \ |
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309 develop(uintx, G1OldCSetRegionThresholdPercent, 10, \ |
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310 "An upper bound for the number of old CSet regions expressed " \ |
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311 "as a percentage of the heap size.") \ |
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312 \ |
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313 experimental(ccstr, G1LogLevel, NULL, \ |
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314 "Log level for G1 logging: fine, finer, finest") |
| 342 | 315 |
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316 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) |
| 1972 | 317 |
| 318 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP |