Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/g1/g1_globals.hpp @ 20808:d3cec14f33f3
Remove G1 heap hack
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
---|---|
date | Tue, 07 Apr 2015 19:00:45 +0200 |
parents | 7848fc12602b |
children |
rev | line source |
---|---|
342 | 1 /* |
17753
191174b49bec
8035406: Improve data structure for Code Cache remembered sets
tschatzl
parents:
14303
diff
changeset
|
2 * Copyright (c) 2001, 2014, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1394
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1394
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1394
diff
changeset
|
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 | |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
342
diff
changeset
|
33 #define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw) \ |
342 | 34 \ |
8094
f1fb03a251e9
8008546: Wrong G1ConfidencePercent results in GUARANTEE(VARIANCE() > -1.0) FAILED
poonam
parents:
8035
diff
changeset
|
35 product(uintx, G1ConfidencePercent, 50, \ |
342 | 36 "Confidence level for MMU/pause predictions") \ |
37 \ | |
884
83b687ce3090
6866591: G1: print update buffer processing stats more often
tonyp
parents:
883
diff
changeset
|
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 \ | |
6188
7994a5a35fcf
6921087: G1: remove per-GC-thread expansion tables from the fine-grain remembered sets
johnc
parents:
6011
diff
changeset
|
56 develop(bool, G1TraceHeapRegionRememberedSet, false, \ |
7994a5a35fcf
6921087: G1: remove per-GC-thread expansion tables from the fine-grain remembered sets
johnc
parents:
6011
diff
changeset
|
57 "Enables heap region remembered set debug logs") \ |
7994a5a35fcf
6921087: G1: remove per-GC-thread expansion tables from the fine-grain remembered sets
johnc
parents:
6011
diff
changeset
|
58 \ |
1282 | 59 diagnostic(bool, G1SummarizeConcMark, false, \ |
342 | 60 "Summarize concurrent mark info") \ |
61 \ | |
751 | 62 diagnostic(bool, G1SummarizeRSetStats, false, \ |
342 | 63 "Summarize remembered set processing info") \ |
64 \ | |
884
83b687ce3090
6866591: G1: print update buffer processing stats more often
tonyp
parents:
883
diff
changeset
|
65 diagnostic(intx, G1SummarizeRSetStatsPeriod, 0, \ |
83b687ce3090
6866591: G1: print update buffer processing stats more often
tonyp
parents:
883
diff
changeset
|
66 "The period (in number of GCs) at which we will generate " \ |
83b687ce3090
6866591: G1: print update buffer processing stats more often
tonyp
parents:
883
diff
changeset
|
67 "update buffer processing info " \ |
83b687ce3090
6866591: G1: print update buffer processing stats more often
tonyp
parents:
883
diff
changeset
|
68 "(0 means do not periodically generate this info); " \ |
83b687ce3090
6866591: G1: print update buffer processing stats more often
tonyp
parents:
883
diff
changeset
|
69 "it also requires -XX:+G1SummarizeRSetStats") \ |
83b687ce3090
6866591: G1: print update buffer processing stats more often
tonyp
parents:
883
diff
changeset
|
70 \ |
1282 | 71 diagnostic(bool, G1TraceConcRefinement, false, \ |
342 | 72 "Trace G1 concurrent refinement") \ |
73 \ | |
14303
893ce66f7473
8027476: Improve performance of Stringtable unlink
tschatzl
parents:
12080
diff
changeset
|
74 experimental(bool, G1TraceStringSymbolTableScrubbing, false, \ |
893ce66f7473
8027476: Improve performance of Stringtable unlink
tschatzl
parents:
12080
diff
changeset
|
75 "Trace information string and symbol table scrubbing.") \ |
893ce66f7473
8027476: Improve performance of Stringtable unlink
tschatzl
parents:
12080
diff
changeset
|
76 \ |
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2152
diff
changeset
|
77 product(double, G1ConcMarkStepDurationMillis, 10.0, \ |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2152
diff
changeset
|
78 "Target duration of individual concurrent marking steps " \ |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2152
diff
changeset
|
79 "in milliseconds.") \ |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2152
diff
changeset
|
80 \ |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2152
diff
changeset
|
81 product(intx, G1RefProcDrainInterval, 10, \ |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2152
diff
changeset
|
82 "The number of discovered reference objects to process before " \ |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2152
diff
changeset
|
83 "draining concurrent marking work queues.") \ |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2152
diff
changeset
|
84 \ |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2436
diff
changeset
|
85 experimental(bool, G1UseConcMarkReferenceProcessing, true, \ |
2436 | 86 "If true, enable reference discovery during concurrent " \ |
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2436
diff
changeset
|
87 "marking and reference processing at the end of remark.") \ |
342 | 88 \ |
1282 | 89 product(intx, G1SATBBufferSize, 1*K, \ |
342 | 90 "Number of entries in an SATB log buffer.") \ |
91 \ | |
1282 | 92 develop(intx, G1SATBProcessCompletedThreshold, 20, \ |
342 | 93 "Number of completed buffers that triggers log processing.") \ |
94 \ | |
2149 | 95 product(uintx, G1SATBBufferEnqueueingThresholdPercent, 60, \ |
96 "Before enqueueing them, each mutator thread tries to do some " \ | |
97 "filtering on the SATB buffers it generates. If post-filtering " \ | |
98 "the percentage of retained entries is over this threshold " \ | |
99 "the buffer will be enqueued for processing. A value of 0 " \ | |
100 "specifies that mutator threads should not do such filtering.") \ | |
101 \ | |
342 | 102 develop(bool, G1SATBPrintStubs, false, \ |
103 "If true, print generated stubs for the SATB barrier") \ | |
104 \ | |
1282 | 105 experimental(intx, G1ExpandByPercentOfAvailable, 20, \ |
342 | 106 "When expanding, % of uncommitted space to claim.") \ |
107 \ | |
108 develop(bool, G1RSBarrierRegionFilter, true, \ | |
109 "If true, generate region filtering code in RS barrier") \ | |
110 \ | |
111 develop(bool, G1RSLogCheckCardTable, false, \ | |
112 "If true, verify that no dirty cards remain after RS log " \ | |
113 "processing.") \ | |
114 \ | |
3921
3bddbf0f57d6
7087717: G1: make the G1PrintRegionLivenessInfo parameter diagnostic
tonyp
parents:
3919
diff
changeset
|
115 diagnostic(bool, G1PrintRegionLivenessInfo, false, \ |
3bddbf0f57d6
7087717: G1: make the G1PrintRegionLivenessInfo parameter diagnostic
tonyp
parents:
3919
diff
changeset
|
116 "Prints the liveness information for all regions in the heap " \ |
3bddbf0f57d6
7087717: G1: make the G1PrintRegionLivenessInfo parameter diagnostic
tonyp
parents:
3919
diff
changeset
|
117 "at the end of a marking cycle.") \ |
342 | 118 \ |
883
27f6a9b9c311
6864886: G1: rename -XX parameters related to update buffers
tonyp
parents:
845
diff
changeset
|
119 product(intx, G1UpdateBufferSize, 256, \ |
27f6a9b9c311
6864886: G1: rename -XX parameters related to update buffers
tonyp
parents:
845
diff
changeset
|
120 "Size of an update buffer") \ |
27f6a9b9c311
6864886: G1: rename -XX parameters related to update buffers
tonyp
parents:
845
diff
changeset
|
121 \ |
1282 | 122 product(intx, G1ConcRefinementYellowZone, 0, \ |
883
27f6a9b9c311
6864886: G1: rename -XX parameters related to update buffers
tonyp
parents:
845
diff
changeset
|
123 "Number of enqueued update buffers that will " \ |
1111 | 124 "trigger concurrent processing. Will be selected ergonomically " \ |
125 "by default.") \ | |
126 \ | |
1282 | 127 product(intx, G1ConcRefinementRedZone, 0, \ |
1111 | 128 "Maximum number of enqueued update buffers before mutator " \ |
129 "threads start processing new ones instead of enqueueing them. " \ | |
130 "Will be selected ergonomically by default. Zero will disable " \ | |
131 "concurrent processing.") \ | |
132 \ | |
1282 | 133 product(intx, G1ConcRefinementGreenZone, 0, \ |
1111 | 134 "The number of update buffers that are left in the queue by the " \ |
135 "concurrent processing threads. Will be selected ergonomically " \ | |
136 "by default.") \ | |
883
27f6a9b9c311
6864886: G1: rename -XX parameters related to update buffers
tonyp
parents:
845
diff
changeset
|
137 \ |
1282 | 138 product(intx, G1ConcRefinementServiceIntervalMillis, 300, \ |
1111 | 139 "The last concurrent refinement thread wakes up every " \ |
140 "specified number of milliseconds to do miscellaneous work.") \ | |
141 \ | |
1282 | 142 product(intx, G1ConcRefinementThresholdStep, 0, \ |
1111 | 143 "Each time the rset update queue increases by this amount " \ |
144 "activate the next refinement thread if available. " \ | |
145 "Will be selected ergonomically by default.") \ | |
146 \ | |
1282 | 147 product(intx, G1RSetUpdatingPauseTimePercent, 10, \ |
1111 | 148 "A target percentage of time that is allowed to be spend on " \ |
149 "process RS update buffers during the collection pause.") \ | |
150 \ | |
1282 | 151 product(bool, G1UseAdaptiveConcRefinement, true, \ |
1111 | 152 "Select green, yellow and red zones adaptively to meet the " \ |
153 "the pause requirements.") \ | |
342 | 154 \ |
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
8094
diff
changeset
|
155 product(uintx, G1ConcRSLogCacheSize, 10, \ |
342 | 156 "Log base 2 of the length of conc RS hot-card cache.") \ |
157 \ | |
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
8094
diff
changeset
|
158 product(uintx, G1ConcRSHotCardLimit, 4, \ |
342 | 159 "The threshold that defines (>=) a hot card.") \ |
160 \ | |
1261
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
161 develop(intx, G1RSetRegionEntriesBase, 256, \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
162 "Max number of regions in a fine-grain table per MB.") \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
163 \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
164 product(intx, G1RSetRegionEntries, 0, \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
165 "Max number of regions for which we keep bitmaps." \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
166 "Will be set ergonomically by default") \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
167 \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
168 develop(intx, G1RSetSparseRegionEntriesBase, 4, \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
169 "Max number of entries per region in a sparse table " \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
170 "per MB.") \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
171 \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
172 product(intx, G1RSetSparseRegionEntries, 0, \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
173 "Max number of entries per region in a sparse table." \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
174 "Will be set ergonomically by default.") \ |
342 | 175 \ |
176 develop(bool, G1RecordHRRSOops, false, \ | |
177 "When true, record recent calls to rem set operations.") \ | |
178 \ | |
179 develop(bool, G1RecordHRRSEvents, false, \ | |
180 "When true, record recent calls to rem set operations.") \ | |
181 \ | |
182 develop(intx, G1MaxVerifyFailures, -1, \ | |
183 "The maximum number of verification failrues to print. " \ | |
184 "-1 means print all.") \ | |
185 \ | |
186 develop(bool, G1ScrubRemSets, true, \ | |
187 "When true, do RS scrubbing after cleanup.") \ | |
188 \ | |
189 develop(bool, G1RSScrubVerbose, false, \ | |
190 "When true, do RS scrubbing with verbose output.") \ | |
191 \ | |
192 develop(bool, G1YoungSurvRateVerbose, false, \ | |
193 "print out the survival rate of young regions according to age.") \ | |
194 \ | |
195 develop(intx, G1YoungSurvRateNumRegionsSummary, 0, \ | |
196 "the number of regions for which we'll print a surv rate " \ | |
197 "summary.") \ | |
198 \ | |
3919
4f41766176cf
7084509: G1: fix inconsistencies and mistakes in the young list target length calculations
tonyp
parents:
3888
diff
changeset
|
199 product(uintx, G1ReservePercent, 10, \ |
342 | 200 "It determines the minimum reserve we should have in the heap " \ |
201 "to minimize the probability of promotion failure.") \ | |
202 \ | |
1282 | 203 diagnostic(bool, G1PrintHeapRegions, false, \ |
342 | 204 "If set G1 will print information on which regions are being " \ |
205 "allocated and which are reclaimed.") \ | |
206 \ | |
207 develop(bool, G1HRRSUseSparseTable, true, \ | |
208 "When true, use sparse table to save space.") \ | |
209 \ | |
210 develop(bool, G1HRRSFlushLogBuffersOnVerify, false, \ | |
211 "Forces flushing of log buffers before verification.") \ | |
212 \ | |
1087
23b9a8d315fc
6902701: G1: protect debugging code related to 6898948 with a debug flag
ysr
parents:
1044
diff
changeset
|
213 develop(bool, G1FailOnFPError, false, \ |
23b9a8d315fc
6902701: G1: protect debugging code related to 6898948 with a debug flag
ysr
parents:
1044
diff
changeset
|
214 "When set, G1 will fail when it encounters an FP 'error', " \ |
23b9a8d315fc
6902701: G1: protect debugging code related to 6898948 with a debug flag
ysr
parents:
1044
diff
changeset
|
215 "so as to allow debugging") \ |
23b9a8d315fc
6902701: G1: protect debugging code related to 6898948 with a debug flag
ysr
parents:
1044
diff
changeset
|
216 \ |
942
2c79770d1f6e
6819085: G1: use larger and/or user settable region size
tonyp
parents:
940
diff
changeset
|
217 product(uintx, G1HeapRegionSize, 0, \ |
2c79770d1f6e
6819085: G1: use larger and/or user settable region size
tonyp
parents:
940
diff
changeset
|
218 "Size of the G1 regions.") \ |
2c79770d1f6e
6819085: G1: use larger and/or user settable region size
tonyp
parents:
940
diff
changeset
|
219 \ |
1357
781e29eb8e08
6677708: G1: re-enable parallel RSet updating and scanning
tonyp
parents:
1356
diff
changeset
|
220 experimental(bool, G1UseParallelRSetUpdating, true, \ |
638
2a5da27ccae9
6816154: G1: introduce flags to enable/disable RSet updating and scanning
tonyp
parents:
616
diff
changeset
|
221 "Enables the parallelization of remembered set updating " \ |
2a5da27ccae9
6816154: G1: introduce flags to enable/disable RSet updating and scanning
tonyp
parents:
616
diff
changeset
|
222 "during evacuation pauses") \ |
2a5da27ccae9
6816154: G1: introduce flags to enable/disable RSet updating and scanning
tonyp
parents:
616
diff
changeset
|
223 \ |
1357
781e29eb8e08
6677708: G1: re-enable parallel RSet updating and scanning
tonyp
parents:
1356
diff
changeset
|
224 experimental(bool, G1UseParallelRSetScanning, true, \ |
638
2a5da27ccae9
6816154: G1: introduce flags to enable/disable RSet updating and scanning
tonyp
parents:
616
diff
changeset
|
225 "Enables the parallelization of remembered set scanning " \ |
794 | 226 "during evacuation pauses") \ |
227 \ | |
1282 | 228 product(uintx, G1ConcRefinementThreads, 0, \ |
794 | 229 "If non-0 is the number of parallel rem set update threads, " \ |
890
6cb8e9df7174
6819077: G1: first GC thread coming late into the GC.
johnc
parents:
884
diff
changeset
|
230 "otherwise the value is determined ergonomically.") \ |
6cb8e9df7174
6819077: G1: first GC thread coming late into the GC.
johnc
parents:
884
diff
changeset
|
231 \ |
940
8624da129f0b
6841313: G1: dirty cards of survivor regions in parallel
apetrusenko
parents:
936
diff
changeset
|
232 develop(bool, G1VerifyCTCleanup, false, \ |
1194
34fb2662f6c2
6920090: G1: Disable ReduceInitialCardMarks at least until 6920109 is fixed
ysr
parents:
1111
diff
changeset
|
233 "Verify card table cleanup.") \ |
34fb2662f6c2
6920090: G1: Disable ReduceInitialCardMarks at least until 6920109 is fixed
ysr
parents:
1111
diff
changeset
|
234 \ |
1261
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
235 product(uintx, G1RSetScanBlockSize, 64, \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
236 "Size of a work unit of cards claimed by a worker thread" \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
237 "during RSet scanning.") \ |
0414c1049f15
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
1194
diff
changeset
|
238 \ |
2152 | 239 develop(uintx, G1SecondaryFreeListAppendLength, 5, \ |
240 "The number of regions we will add to the secondary free list " \ | |
241 "at every append operation") \ | |
242 \ | |
243 develop(bool, G1ConcRegionFreeingVerbose, false, \ | |
244 "Enables verboseness during concurrent region freeing") \ | |
245 \ | |
246 develop(bool, G1StressConcRegionFreeing, false, \ | |
247 "It stresses the concurrent region freeing operation") \ | |
248 \ | |
249 develop(uintx, G1StressConcRegionFreeingDelayMillis, 0, \ | |
250 "Artificial delay during concurrent region freeing") \ | |
251 \ | |
3285
49a67202bc67
7011855: G1: non-product flag to artificially grow the heap
tonyp
parents:
3249
diff
changeset
|
252 develop(uintx, G1DummyRegionsPerGC, 0, \ |
49a67202bc67
7011855: G1: non-product flag to artificially grow the heap
tonyp
parents:
3249
diff
changeset
|
253 "The number of dummy regions G1 will allocate at the end of " \ |
49a67202bc67
7011855: G1: non-product flag to artificially grow the heap
tonyp
parents:
3249
diff
changeset
|
254 "each evacuation pause in order to artificially fill up the " \ |
49a67202bc67
7011855: G1: non-product flag to artificially grow the heap
tonyp
parents:
3249
diff
changeset
|
255 "heap and stress the marking implementation.") \ |
49a67202bc67
7011855: G1: non-product flag to artificially grow the heap
tonyp
parents:
3249
diff
changeset
|
256 \ |
2188
c33825b68624
6923430: G1: assert(res != 0,"This should have worked.")
johnc
parents:
2174
diff
changeset
|
257 develop(bool, G1ExitOnExpansionFailure, false, \ |
c33825b68624
6923430: G1: assert(res != 0,"This should have worked.")
johnc
parents:
2174
diff
changeset
|
258 "Raise a fatal VM exit out of memory failure in the event " \ |
3316
cd8e33b2a8ad
7034139: G1: assert(Thread::current()->is_ConcurrentGC_thread()) failed: only a conc GC thread can call this.
tonyp
parents:
3285
diff
changeset
|
259 " that heap expansion fails due to running out of swap.") \ |
cd8e33b2a8ad
7034139: G1: assert(Thread::current()->is_ConcurrentGC_thread()) failed: only a conc GC thread can call this.
tonyp
parents:
3285
diff
changeset
|
260 \ |
cd8e33b2a8ad
7034139: G1: assert(Thread::current()->is_ConcurrentGC_thread()) failed: only a conc GC thread can call this.
tonyp
parents:
3285
diff
changeset
|
261 develop(uintx, G1ConcMarkForceOverflow, 0, \ |
cd8e33b2a8ad
7034139: G1: assert(Thread::current()->is_ConcurrentGC_thread()) failed: only a conc GC thread can call this.
tonyp
parents:
3285
diff
changeset
|
262 "The number of times we'll force an overflow during " \ |
4729
1cbe7978b021
7113021: G1: automatically enable young gen size auto-tuning when -Xms==-Xmx
brutisso
parents:
4090
diff
changeset
|
263 "concurrent marking") \ |
1cbe7978b021
7113021: G1: automatically enable young gen size auto-tuning when -Xms==-Xmx
brutisso
parents:
4090
diff
changeset
|
264 \ |
7612
4967eb4f67a9
8001425: G1: Change the default values for certain G1 specific flags
johnc
parents:
7449
diff
changeset
|
265 experimental(uintx, G1NewSizePercent, 5, \ |
7449 | 266 "Percentage (0-100) of the heap size to use as default " \ |
267 "minimum young gen size.") \ | |
4729
1cbe7978b021
7113021: G1: automatically enable young gen size auto-tuning when -Xms==-Xmx
brutisso
parents:
4090
diff
changeset
|
268 \ |
7612
4967eb4f67a9
8001425: G1: Change the default values for certain G1 specific flags
johnc
parents:
7449
diff
changeset
|
269 experimental(uintx, G1MaxNewSizePercent, 60, \ |
7449 | 270 "Percentage (0-100) of the heap size to use as default " \ |
271 " maximum young gen size.") \ | |
4912
a9647476d1a4
7132029: G1: mixed GC phase lasts for longer than it should
tonyp
parents:
4786
diff
changeset
|
272 \ |
20544
fa14838b03c4
8059452: G1: Change the default values for G1HeapWastePercent and G1MixedGCLiveThresholdPercent
brutisso
parents:
20504
diff
changeset
|
273 experimental(uintx, G1MixedGCLiveThresholdPercent, 85, \ |
7449 | 274 "Threshold for regions to be considered for inclusion in the " \ |
275 "collection set of mixed GCs. " \ | |
276 "Regions with live bytes exceeding this will not be collected.") \ | |
4912
a9647476d1a4
7132029: G1: mixed GC phase lasts for longer than it should
tonyp
parents:
4786
diff
changeset
|
277 \ |
20544
fa14838b03c4
8059452: G1: Change the default values for G1HeapWastePercent and G1MixedGCLiveThresholdPercent
brutisso
parents:
20504
diff
changeset
|
278 product(uintx, G1HeapWastePercent, 5, \ |
5964
21595f05bc93
7146246: G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs
tonyp
parents:
4912
diff
changeset
|
279 "Amount of space, expressed as a percentage of the heap size, " \ |
21595f05bc93
7146246: G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs
tonyp
parents:
4912
diff
changeset
|
280 "that G1 is willing not to collect to avoid expensive GCs.") \ |
4912
a9647476d1a4
7132029: G1: mixed GC phase lasts for longer than it should
tonyp
parents:
4786
diff
changeset
|
281 \ |
7612
4967eb4f67a9
8001425: G1: Change the default values for certain G1 specific flags
johnc
parents:
7449
diff
changeset
|
282 product(uintx, G1MixedGCCountTarget, 8, \ |
5964
21595f05bc93
7146246: G1: expose some of the -XX flags that drive which old regions to collect during mixed GCs
tonyp
parents:
4912
diff
changeset
|
283 "The target number of mixed GCs after a marking cycle.") \ |
4912
a9647476d1a4
7132029: G1: mixed GC phase lasts for longer than it should
tonyp
parents:
4786
diff
changeset
|
284 \ |
20305
755930f931e3
8027959: Early reclamation of large objects in G1
tschatzl
parents:
17753
diff
changeset
|
285 experimental(bool, G1ReclaimDeadHumongousObjectsAtYoungGC, true, \ |
755930f931e3
8027959: Early reclamation of large objects in G1
tschatzl
parents:
17753
diff
changeset
|
286 "Try to reclaim dead large objects at every young GC.") \ |
755930f931e3
8027959: Early reclamation of large objects in G1
tschatzl
parents:
17753
diff
changeset
|
287 \ |
755930f931e3
8027959: Early reclamation of large objects in G1
tschatzl
parents:
17753
diff
changeset
|
288 experimental(bool, G1TraceReclaimDeadHumongousObjectsAtYoungGC, false, \ |
755930f931e3
8027959: Early reclamation of large objects in G1
tschatzl
parents:
17753
diff
changeset
|
289 "Print some information about large object liveness " \ |
755930f931e3
8027959: Early reclamation of large objects in G1
tschatzl
parents:
17753
diff
changeset
|
290 "at every young GC.") \ |
755930f931e3
8027959: Early reclamation of large objects in G1
tschatzl
parents:
17753
diff
changeset
|
291 \ |
6612
3650da95d2ee
7193157: G1: Make some develpflags available in product builds
brutisso
parents:
6188
diff
changeset
|
292 experimental(uintx, G1OldCSetRegionThresholdPercent, 10, \ |
4912
a9647476d1a4
7132029: G1: mixed GC phase lasts for longer than it should
tonyp
parents:
4786
diff
changeset
|
293 "An upper bound for the number of old CSet regions expressed " \ |
6007
5c86f8211d1e
7160728: Introduce an extra logging level for G1 logging
brutisso
parents:
5988
diff
changeset
|
294 "as a percentage of the heap size.") \ |
5c86f8211d1e
7160728: Introduce an extra logging level for G1 logging
brutisso
parents:
5988
diff
changeset
|
295 \ |
5c86f8211d1e
7160728: Introduce an extra logging level for G1 logging
brutisso
parents:
5988
diff
changeset
|
296 experimental(ccstr, G1LogLevel, NULL, \ |
6629
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
297 "Log level for G1 logging: fine, finer, finest") \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
298 \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
299 notproduct(bool, G1EvacuationFailureALot, false, \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
300 "Force use of evacuation failure handling during certain " \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
301 "evacuation pauses") \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
302 \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
303 develop(uintx, G1EvacuationFailureALotCount, 1000, \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
304 "Number of successful evacuations between evacuation failures " \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
305 "occurring at object copying") \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
306 \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
307 develop(uintx, G1EvacuationFailureALotInterval, 5, \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
308 "Total collections between forced triggering of evacuation " \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
309 "failures") \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
310 \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
311 develop(bool, G1EvacuationFailureALotDuringConcMark, true, \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
312 "Force use of evacuation failure handling during evacuation " \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
313 "pauses when marking is in progress") \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
314 \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
315 develop(bool, G1EvacuationFailureALotDuringInitialMark, true, \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
316 "Force use of evacuation failure handling during initial mark " \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
317 "evacuation pauses") \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
318 \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
319 develop(bool, G1EvacuationFailureALotDuringYoungGC, true, \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
320 "Force use of evacuation failure handling during young " \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
321 "evacuation pauses") \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
322 \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
323 develop(bool, G1EvacuationFailureALotDuringMixedGC, true, \ |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
6612
diff
changeset
|
324 "Force use of evacuation failure handling during mixed " \ |
10373
3a4805ad0005
8015244: G1: Verification after a full GC is incorrectly placed.
johnc
parents:
10246
diff
changeset
|
325 "evacuation pauses") \ |
3a4805ad0005
8015244: G1: Verification after a full GC is incorrectly placed.
johnc
parents:
10246
diff
changeset
|
326 \ |
3a4805ad0005
8015244: G1: Verification after a full GC is incorrectly placed.
johnc
parents:
10246
diff
changeset
|
327 diagnostic(bool, G1VerifyRSetsDuringFullGC, false, \ |
20291
e0954897238a
7132678: G1: verify that the marking bitmaps have no marks for objects over TAMS
brutisso
parents:
17753
diff
changeset
|
328 "If true, perform verification of each heap region's " \ |
e0954897238a
7132678: G1: verify that the marking bitmaps have no marks for objects over TAMS
brutisso
parents:
17753
diff
changeset
|
329 "remembered set when verifying the heap during a full GC.") \ |
12080 | 330 \ |
331 diagnostic(bool, G1VerifyHeapRegionCodeRoots, false, \ | |
20291
e0954897238a
7132678: G1: verify that the marking bitmaps have no marks for objects over TAMS
brutisso
parents:
17753
diff
changeset
|
332 "Verify the code root lists attached to each heap region.") \ |
e0954897238a
7132678: G1: verify that the marking bitmaps have no marks for objects over TAMS
brutisso
parents:
17753
diff
changeset
|
333 \ |
e0954897238a
7132678: G1: verify that the marking bitmaps have no marks for objects over TAMS
brutisso
parents:
17753
diff
changeset
|
334 develop(bool, G1VerifyBitmaps, false, \ |
e0954897238a
7132678: G1: verify that the marking bitmaps have no marks for objects over TAMS
brutisso
parents:
17753
diff
changeset
|
335 "Verifies the consistency of the marking bitmaps") |
342 | 336 |
350
d28aa69f0959
6618726: Introduce -XX:+UnlockExperimentalVMOptions flag
ysr
parents:
342
diff
changeset
|
337 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 | 338 |
339 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_GLOBALS_HPP |