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6490395: G1: Tidy up command line flags
Change G1 flag names to be more consistent and disable some in 'product' mode. Reviewed-by: tonyp, iveresov
This commit is contained in:
John Cuthbertson
parent
907a41e100
commit
55750920b4
11 changed files with 87 additions and 163 deletions
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@ -28,46 +28,34 @@
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#define G1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, manageable, product_rw) \
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\
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product(intx, ParallelGCG1AllocBufferSize, 8*K, \
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product(intx, G1ParallelGCAllocBufferSize, 8*K, \
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"Size of parallel G1 allocation buffers in to-space.") \
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\
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product(intx, G1TimeSliceMS, 500, \
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"Time slice for MMU specification") \
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\
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product(intx, G1MaxPauseTimeMS, 200, \
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"Max GC time per MMU time slice") \
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\
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product(intx, G1ConfidencePerc, 50, \
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product(intx, G1ConfidencePercent, 50, \
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"Confidence level for MMU/pause predictions") \
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\
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product(intx, G1MarkingOverheadPerc, 0, \
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develop(intx, G1MarkingOverheadPercent, 0, \
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"Overhead of concurrent marking") \
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\
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product(bool, G1AccountConcurrentOverhead, false, \
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develop(bool, G1AccountConcurrentOverhead, false, \
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"Whether soft real-time compliance in G1 will take into account" \
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"concurrent overhead") \
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\
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product(intx, G1YoungGenSize, 0, \
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"Size of the G1 young generation, 0 is the adaptive policy") \
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\
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product(bool, G1Gen, true, \
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develop(bool, G1Gen, true, \
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"If true, it will enable the generational G1") \
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\
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develop(intx, G1GCPct, 10, \
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develop(intx, G1GCPercent, 10, \
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"The desired percent time spent on GC") \
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\
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product(intx, G1PolicyVerbose, 0, \
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develop(intx, G1PolicyVerbose, 0, \
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"The verbosity level on G1 policy decisions") \
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\
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develop(bool, G1UseHRIntoRS, true, \
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"Determines whether the 'advanced' HR Into rem set is used.") \
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\
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product(bool, G1VerifyRemSet, false, \
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"If true, verify the rem set functioning at each GC") \
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\
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product(bool, G1VerifyConcMark, false, \
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"If true, verify the conc marking code at full GC time") \
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\
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develop(intx, G1MarkingVerboseLevel, 0, \
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"Level (0-4) of verboseness of the marking code") \
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\
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@ -77,38 +65,28 @@
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develop(bool, G1TraceMarkStackOverflow, false, \
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"If true, extra debugging code for CM restart for ovflw.") \
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\
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product(bool, G1VerifyMarkingInEvac, false, \
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"If true, verify marking info during evacuation") \
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\
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develop(intx, G1PausesBtwnConcMark, -1, \
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"If positive, fixed number of pauses between conc markings") \
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\
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product(intx, G1EfficiencyPctCausesMark, 80, \
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"The cum gc efficiency since mark fall-off that causes " \
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"new marking") \
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\
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product(bool, TraceConcurrentMark, false, \
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"Trace concurrent mark") \
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\
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product(bool, SummarizeG1ConcMark, false, \
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diagnostic(bool, G1SummarizeConcurrentMark, false, \
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"Summarize concurrent mark info") \
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\
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product(bool, SummarizeG1RSStats, false, \
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diagnostic(bool, G1SummarizeRSetStats, false, \
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"Summarize remembered set processing info") \
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\
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product(bool, SummarizeG1ZFStats, false, \
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diagnostic(bool, G1SummarizeZFStats, false, \
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"Summarize zero-filling info") \
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\
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product(bool, TraceG1Refine, false, \
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develop(bool, G1TraceConcurrentRefinement, false, \
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"Trace G1 concurrent refinement") \
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\
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develop(bool, G1ConcMark, true, \
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"If true, run concurrent marking for G1") \
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\
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product(intx, G1CMStackSize, 2 * 1024 * 1024, \
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product(intx, G1MarkStackSize, 2 * 1024 * 1024, \
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"Size of the mark stack for concurrent marking.") \
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\
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product(intx, G1CMRegionStackSize, 1024 * 1024, \
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product(intx, G1MarkRegionStackSize, 1024 * 1024, \
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"Size of the region stack for concurrent marking.") \
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\
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develop(bool, G1ConcRefine, true, \
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@ -121,7 +99,7 @@
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"Number of heap regions of alloc ahead of starting collection " \
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"pause to start concurrent refinement (initially)") \
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\
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product(bool, G1SmoothConcRefine, true, \
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develop(bool, G1SmoothConcRefine, true, \
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"Attempts to smooth out the overhead of concurrent refinement") \
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\
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develop(bool, G1ConcZeroFill, true, \
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@ -157,7 +135,7 @@
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develop(bool, G1SATBPrintStubs, false, \
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"If true, print generated stubs for the SATB barrier") \
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\
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product(intx, G1ExpandByPctOfAvail, 20, \
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product(intx, G1ExpandByPercentOfAvailable, 20, \
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"When expanding, % of uncommitted space to claim.") \
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\
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develop(bool, G1RSBarrierRegionFilter, true, \
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@ -179,18 +157,9 @@
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"If true, verify that no dirty cards remain after RS log " \
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"processing.") \
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\
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product(intx, G1MinPausesBetweenMarks, 2, \
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"Number of inefficient pauses necessary to trigger marking.") \
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\
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product(intx, G1InefficientPausePct, 80, \
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"Threshold of an 'inefficient' pauses (as % of cum efficiency.") \
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\
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develop(bool, G1RSCountHisto, false, \
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"If true, print a histogram of RS occupancies after each pause") \
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\
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product(bool, G1TraceFileOverwrite, false, \
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"Allow the trace file to be overwritten") \
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\
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develop(intx, G1PrintRegionLivenessInfo, 0, \
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"When > 0, print the occupancies of the <n> best and worst" \
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"regions.") \
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@ -198,9 +167,6 @@
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develop(bool, G1PrintParCleanupStats, false, \
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"When true, print extra stats about parallel cleanup.") \
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\
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product(bool, G1DoAgeCohortChecks, false, \
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"When true, check well-formedness of age cohort structures.") \
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\
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develop(bool, G1DisablePreBarrier, false, \
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"Disable generation of pre-barrier (i.e., marking barrier) ") \
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\
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@ -214,17 +180,17 @@
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develop(intx, G1ConcRSLogCacheSize, 10, \
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"Log base 2 of the length of conc RS hot-card cache.") \
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\
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product(bool, G1ConcRSCountTraversals, false, \
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develop(bool, G1ConcRSCountTraversals, false, \
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"If true, gather data about the number of times CR traverses " \
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"cards ") \
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\
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product(intx, G1ConcRSHotCardLimit, 4, \
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develop(intx, G1ConcRSHotCardLimit, 4, \
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"The threshold that defines (>=) a hot card.") \
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\
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develop(bool, G1PrintOopAppls, false, \
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"When true, print applications of closures to external locs.") \
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\
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product(intx, G1LogRSRegionEntries, 7, \
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develop(intx, G1LogRSRegionEntries, 7, \
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"Log_2 of max number of regions for which we keep bitmaps.") \
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\
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develop(bool, G1RecordHRRSOops, false, \
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@ -254,11 +220,11 @@
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"It determines whether the system will calculate an optimum " \
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"scan-only set.") \
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\
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product(intx, G1MinReservePerc, 10, \
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product(intx, G1MinReservePercent, 10, \
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"It determines the minimum reserve we should have in the heap " \
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"to minimize the probability of promotion failure.") \
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\
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product(bool, G1TraceRegions, false, \
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diagnostic(bool, G1PrintRegions, false, \
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"If set G1 will print information on which regions are being " \
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"allocated and which are reclaimed.") \
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\
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@ -268,24 +234,24 @@
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develop(bool, G1HRRSFlushLogBuffersOnVerify, false, \
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"Forces flushing of log buffers before verification.") \
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\
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product(bool, G1UseSurvivorSpace, true, \
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product(bool, G1UseSurvivorSpaces, true, \
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"When true, use survivor space.") \
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\
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product(bool, G1FixedTenuringThreshold, false, \
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develop(bool, G1FixedTenuringThreshold, false, \
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"When set, G1 will not adjust the tenuring threshold") \
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\
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product(bool, G1FixedEdenSize, false, \
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develop(bool, G1FixedEdenSize, false, \
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"When set, G1 will not allocate unused survivor space regions") \
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\
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product(uintx, G1FixedSurvivorSpaceSize, 0, \
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develop(uintx, G1FixedSurvivorSpaceSize, 0, \
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"If non-0 is the size of the G1 survivor space, " \
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"otherwise SurvivorRatio is used to determine the size") \
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\
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experimental(bool, G1EnableParallelRSetUpdating, false, \
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experimental(bool, G1ParallelRSetUpdatingEnabled, false, \
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"Enables the parallelization of remembered set updating " \
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"during evacuation pauses") \
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\
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experimental(bool, G1EnableParallelRSetScanning, false, \
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experimental(bool, G1ParallelRSetScanningEnabled, false, \
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"Enables the parallelization of remembered set scanning " \
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"during evacuation pauses")
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