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comparison src/share/vm/gc_implementation/g1/g1_globals.hpp @ 751:20c6f43950b5

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6490395: G1: Tidy up command line flags. Summary: Change G1 flag names to be more consistent and disable some in 'product' mode. Reviewed-by: tonyp, iveresov
author johnc
date Thu, 30 Apr 2009 15:07:53 -0700
parents 2b6c55e36143
children 315a5d70b295
comparison
equal deleted inserted replaced
748:51285b431bb2 751:20c6f43950b5
26 // Defines all globals flags used by the garbage-first compiler. 26 // Defines all globals flags used by the garbage-first compiler.
27 // 27 //
28 28
29 #define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw) \ 29 #define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw) \
30 \ 30 \
31 product(intx, ParallelGCG1AllocBufferSize, 8*K, \ 31 product(intx, G1ParallelGCAllocBufferSize, 8*K, \
32 "Size of parallel G1 allocation buffers in to-space.") \ 32 "Size of parallel G1 allocation buffers in to-space.") \
33 \ 33 \
34 product(intx, G1TimeSliceMS, 500, \ 34 product(intx, G1ConfidencePercent, 50, \
35 "Time slice for MMU specification") \
36 \
37 product(intx, G1MaxPauseTimeMS, 200, \
38 "Max GC time per MMU time slice") \
39 \
40 product(intx, G1ConfidencePerc, 50, \
41 "Confidence level for MMU/pause predictions") \ 35 "Confidence level for MMU/pause predictions") \
42 \ 36 \
43 product(intx, G1MarkingOverheadPerc, 0, \ 37 develop(intx, G1MarkingOverheadPercent, 0, \
44 "Overhead of concurrent marking") \ 38 "Overhead of concurrent marking") \
45 \ 39 \
46 product(bool, G1AccountConcurrentOverhead, false, \ 40 develop(bool, G1AccountConcurrentOverhead, false, \
47 "Whether soft real-time compliance in G1 will take into account" \ 41 "Whether soft real-time compliance in G1 will take into account" \
48 "concurrent overhead") \ 42 "concurrent overhead") \
49 \ 43 \
50 product(intx, G1YoungGenSize, 0, \ 44 product(intx, G1YoungGenSize, 0, \
51 "Size of the G1 young generation, 0 is the adaptive policy") \ 45 "Size of the G1 young generation, 0 is the adaptive policy") \
52 \ 46 \
53 product(bool, G1Gen, true, \ 47 develop(bool, G1Gen, true, \
54 "If true, it will enable the generational G1") \ 48 "If true, it will enable the generational G1") \
55 \ 49 \
56 develop(intx, G1GCPct, 10, \ 50 develop(intx, G1GCPercent, 10, \
57 "The desired percent time spent on GC") \ 51 "The desired percent time spent on GC") \
58 \ 52 \
59 product(intx, G1PolicyVerbose, 0, \ 53 develop(intx, G1PolicyVerbose, 0, \
60 "The verbosity level on G1 policy decisions") \ 54 "The verbosity level on G1 policy decisions") \
61 \ 55 \
62 develop(bool, G1UseHRIntoRS, true, \ 56 develop(bool, G1UseHRIntoRS, true, \
63 "Determines whether the 'advanced' HR Into rem set is used.") \ 57 "Determines whether the 'advanced' HR Into rem set is used.") \
64 \ 58 \
65 product(bool, G1VerifyRemSet, false, \
66 "If true, verify the rem set functioning at each GC") \
67 \
68 product(bool, G1VerifyConcMark, false, \
69 "If true, verify the conc marking code at full GC time") \
70 \
71 develop(intx, G1MarkingVerboseLevel, 0, \ 59 develop(intx, G1MarkingVerboseLevel, 0, \
72 "Level (0-4) of verboseness of the marking code") \ 60 "Level (0-4) of verboseness of the marking code") \
73 \ 61 \
74 develop(bool, G1VerifyConcMarkPrintReachable, false, \ 62 develop(bool, G1VerifyConcMarkPrintReachable, false, \
75 "If conc mark verification fails, print reachable objects") \ 63 "If conc mark verification fails, print reachable objects") \
76 \ 64 \
77 develop(bool, G1TraceMarkStackOverflow, false, \ 65 develop(bool, G1TraceMarkStackOverflow, false, \
78 "If true, extra debugging code for CM restart for ovflw.") \ 66 "If true, extra debugging code for CM restart for ovflw.") \
79 \ 67 \
80 product(bool, G1VerifyMarkingInEvac, false, \
81 "If true, verify marking info during evacuation") \
82 \
83 develop(intx, G1PausesBtwnConcMark, -1, \ 68 develop(intx, G1PausesBtwnConcMark, -1, \
84 "If positive, fixed number of pauses between conc markings") \ 69 "If positive, fixed number of pauses between conc markings") \
85 \ 70 \
86 product(intx, G1EfficiencyPctCausesMark, 80, \ 71 diagnostic(bool, G1SummarizeConcurrentMark, false, \
87 "The cum gc efficiency since mark fall-off that causes " \
88 "new marking") \
89 \
90 product(bool, TraceConcurrentMark, false, \
91 "Trace concurrent mark") \
92 \
93 product(bool, SummarizeG1ConcMark, false, \
94 "Summarize concurrent mark info") \ 72 "Summarize concurrent mark info") \
95 \ 73 \
96 product(bool, SummarizeG1RSStats, false, \ 74 diagnostic(bool, G1SummarizeRSetStats, false, \
97 "Summarize remembered set processing info") \ 75 "Summarize remembered set processing info") \
98 \ 76 \
99 product(bool, SummarizeG1ZFStats, false, \ 77 diagnostic(bool, G1SummarizeZFStats, false, \
100 "Summarize zero-filling info") \ 78 "Summarize zero-filling info") \
101 \ 79 \
102 product(bool, TraceG1Refine, false, \ 80 develop(bool, G1TraceConcurrentRefinement, false, \
103 "Trace G1 concurrent refinement") \ 81 "Trace G1 concurrent refinement") \
104 \ 82 \
105 develop(bool, G1ConcMark, true, \ 83 develop(bool, G1ConcMark, true, \
106 "If true, run concurrent marking for G1") \ 84 "If true, run concurrent marking for G1") \
107 \ 85 \
108 product(intx, G1CMStackSize, 2 * 1024 * 1024, \ 86 product(intx, G1MarkStackSize, 2 * 1024 * 1024, \
109 "Size of the mark stack for concurrent marking.") \ 87 "Size of the mark stack for concurrent marking.") \
110 \ 88 \
111 product(intx, G1CMRegionStackSize, 1024 * 1024, \ 89 product(intx, G1MarkRegionStackSize, 1024 * 1024, \
112 "Size of the region stack for concurrent marking.") \ 90 "Size of the region stack for concurrent marking.") \
113 \ 91 \
114 develop(bool, G1ConcRefine, true, \ 92 develop(bool, G1ConcRefine, true, \
115 "If true, run concurrent rem set refinement for G1") \ 93 "If true, run concurrent rem set refinement for G1") \
116 \ 94 \
119 \ 97 \
120 develop(intx, G1ConcRefineInitialDelta, 4, \ 98 develop(intx, G1ConcRefineInitialDelta, 4, \
121 "Number of heap regions of alloc ahead of starting collection " \ 99 "Number of heap regions of alloc ahead of starting collection " \
122 "pause to start concurrent refinement (initially)") \ 100 "pause to start concurrent refinement (initially)") \
123 \ 101 \
124 product(bool, G1SmoothConcRefine, true, \ 102 develop(bool, G1SmoothConcRefine, true, \
125 "Attempts to smooth out the overhead of concurrent refinement") \ 103 "Attempts to smooth out the overhead of concurrent refinement") \
126 \ 104 \
127 develop(bool, G1ConcZeroFill, true, \ 105 develop(bool, G1ConcZeroFill, true, \
128 "If true, run concurrent zero-filling thread") \ 106 "If true, run concurrent zero-filling thread") \
129 \ 107 \
155 "Expected Survival Rate for newly allocated bytes") \ 133 "Expected Survival Rate for newly allocated bytes") \
156 \ 134 \
157 develop(bool, G1SATBPrintStubs, false, \ 135 develop(bool, G1SATBPrintStubs, false, \
158 "If true, print generated stubs for the SATB barrier") \ 136 "If true, print generated stubs for the SATB barrier") \
159 \ 137 \
160 product(intx, G1ExpandByPctOfAvail, 20, \ 138 product(intx, G1ExpandByPercentOfAvailable, 20, \
161 "When expanding, % of uncommitted space to claim.") \ 139 "When expanding, % of uncommitted space to claim.") \
162 \ 140 \
163 develop(bool, G1RSBarrierRegionFilter, true, \ 141 develop(bool, G1RSBarrierRegionFilter, true, \
164 "If true, generate region filtering code in RS barrier") \ 142 "If true, generate region filtering code in RS barrier") \
165 \ 143 \
177 \ 155 \
178 develop(bool, G1RSLogCheckCardTable, false, \ 156 develop(bool, G1RSLogCheckCardTable, false, \
179 "If true, verify that no dirty cards remain after RS log " \ 157 "If true, verify that no dirty cards remain after RS log " \
180 "processing.") \ 158 "processing.") \
181 \ 159 \
182 product(intx, G1MinPausesBetweenMarks, 2, \
183 "Number of inefficient pauses necessary to trigger marking.") \
184 \
185 product(intx, G1InefficientPausePct, 80, \
186 "Threshold of an 'inefficient' pauses (as % of cum efficiency.") \
187 \
188 develop(bool, G1RSCountHisto, false, \ 160 develop(bool, G1RSCountHisto, false, \
189 "If true, print a histogram of RS occupancies after each pause") \ 161 "If true, print a histogram of RS occupancies after each pause") \
190 \
191 product(bool, G1TraceFileOverwrite, false, \
192 "Allow the trace file to be overwritten") \
193 \ 162 \
194 develop(intx, G1PrintRegionLivenessInfo, 0, \ 163 develop(intx, G1PrintRegionLivenessInfo, 0, \
195 "When > 0, print the occupancies of the <n> best and worst" \ 164 "When > 0, print the occupancies of the <n> best and worst" \
196 "regions.") \ 165 "regions.") \
197 \ 166 \
198 develop(bool, G1PrintParCleanupStats, false, \ 167 develop(bool, G1PrintParCleanupStats, false, \
199 "When true, print extra stats about parallel cleanup.") \ 168 "When true, print extra stats about parallel cleanup.") \
200 \ 169 \
201 product(bool, G1DoAgeCohortChecks, false, \
202 "When true, check well-formedness of age cohort structures.") \
203 \
204 develop(bool, G1DisablePreBarrier, false, \ 170 develop(bool, G1DisablePreBarrier, false, \
205 "Disable generation of pre-barrier (i.e., marking barrier) ") \ 171 "Disable generation of pre-barrier (i.e., marking barrier) ") \
206 \ 172 \
207 develop(bool, G1DisablePostBarrier, false, \ 173 develop(bool, G1DisablePostBarrier, false, \
208 "Disable generation of post-barrier (i.e., RS barrier) ") \ 174 "Disable generation of post-barrier (i.e., RS barrier) ") \
212 "start processing them.") \ 178 "start processing them.") \
213 \ 179 \
214 develop(intx, G1ConcRSLogCacheSize, 10, \ 180 develop(intx, G1ConcRSLogCacheSize, 10, \
215 "Log base 2 of the length of conc RS hot-card cache.") \ 181 "Log base 2 of the length of conc RS hot-card cache.") \
216 \ 182 \
217 product(bool, G1ConcRSCountTraversals, false, \ 183 develop(bool, G1ConcRSCountTraversals, false, \
218 "If true, gather data about the number of times CR traverses " \ 184 "If true, gather data about the number of times CR traverses " \
219 "cards ") \ 185 "cards ") \
220 \ 186 \
221 product(intx, G1ConcRSHotCardLimit, 4, \ 187 develop(intx, G1ConcRSHotCardLimit, 4, \
222 "The threshold that defines (>=) a hot card.") \ 188 "The threshold that defines (>=) a hot card.") \
223 \ 189 \
224 develop(bool, G1PrintOopAppls, false, \ 190 develop(bool, G1PrintOopAppls, false, \
225 "When true, print applications of closures to external locs.") \ 191 "When true, print applications of closures to external locs.") \
226 \ 192 \
227 product(intx, G1LogRSRegionEntries, 7, \ 193 develop(intx, G1LogRSRegionEntries, 7, \
228 "Log_2 of max number of regions for which we keep bitmaps.") \ 194 "Log_2 of max number of regions for which we keep bitmaps.") \
229 \ 195 \
230 develop(bool, G1RecordHRRSOops, false, \ 196 develop(bool, G1RecordHRRSOops, false, \
231 "When true, record recent calls to rem set operations.") \ 197 "When true, record recent calls to rem set operations.") \
232 \ 198 \
252 \ 218 \
253 product(bool, G1UseScanOnlyPrefix, false, \ 219 product(bool, G1UseScanOnlyPrefix, false, \
254 "It determines whether the system will calculate an optimum " \ 220 "It determines whether the system will calculate an optimum " \
255 "scan-only set.") \ 221 "scan-only set.") \
256 \ 222 \
257 product(intx, G1MinReservePerc, 10, \ 223 product(intx, G1MinReservePercent, 10, \
258 "It determines the minimum reserve we should have in the heap " \ 224 "It determines the minimum reserve we should have in the heap " \
259 "to minimize the probability of promotion failure.") \ 225 "to minimize the probability of promotion failure.") \
260 \ 226 \
261 product(bool, G1TraceRegions, false, \ 227 diagnostic(bool, G1PrintRegions, false, \
262 "If set G1 will print information on which regions are being " \ 228 "If set G1 will print information on which regions are being " \
263 "allocated and which are reclaimed.") \ 229 "allocated and which are reclaimed.") \
264 \ 230 \
265 develop(bool, G1HRRSUseSparseTable, true, \ 231 develop(bool, G1HRRSUseSparseTable, true, \
266 "When true, use sparse table to save space.") \ 232 "When true, use sparse table to save space.") \
267 \ 233 \
268 develop(bool, G1HRRSFlushLogBuffersOnVerify, false, \ 234 develop(bool, G1HRRSFlushLogBuffersOnVerify, false, \
269 "Forces flushing of log buffers before verification.") \ 235 "Forces flushing of log buffers before verification.") \
270 \ 236 \
271 product(bool, G1UseSurvivorSpace, true, \ 237 product(bool, G1UseSurvivorSpaces, true, \
272 "When true, use survivor space.") \ 238 "When true, use survivor space.") \
273 \ 239 \
274 product(bool, G1FixedTenuringThreshold, false, \ 240 develop(bool, G1FixedTenuringThreshold, false, \
275 "When set, G1 will not adjust the tenuring threshold") \ 241 "When set, G1 will not adjust the tenuring threshold") \
276 \ 242 \
277 product(bool, G1FixedEdenSize, false, \ 243 develop(bool, G1FixedEdenSize, false, \
278 "When set, G1 will not allocate unused survivor space regions") \ 244 "When set, G1 will not allocate unused survivor space regions") \
279 \ 245 \
280 product(uintx, G1FixedSurvivorSpaceSize, 0, \ 246 develop(uintx, G1FixedSurvivorSpaceSize, 0, \
281 "If non-0 is the size of the G1 survivor space, " \ 247 "If non-0 is the size of the G1 survivor space, " \
282 "otherwise SurvivorRatio is used to determine the size") \ 248 "otherwise SurvivorRatio is used to determine the size") \
283 \ 249 \
284 experimental(bool, G1EnableParallelRSetUpdating, false, \ 250 experimental(bool, G1ParallelRSetUpdatingEnabled, false, \
285 "Enables the parallelization of remembered set updating " \ 251 "Enables the parallelization of remembered set updating " \
286 "during evacuation pauses") \ 252 "during evacuation pauses") \
287 \ 253 \
288 experimental(bool, G1EnableParallelRSetScanning, false, \ 254 experimental(bool, G1ParallelRSetScanningEnabled, false, \
289 "Enables the parallelization of remembered set scanning " \ 255 "Enables the parallelization of remembered set scanning " \
290 "during evacuation pauses") 256 "during evacuation pauses")
291 257
292 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) 258 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)