1.1 --- a/src/share/vm/runtime/globals.hpp Wed Dec 23 03:12:16 2009 -0800
1.2 +++ b/src/share/vm/runtime/globals.hpp Mon Jan 04 07:58:42 2010 -0800
1.3 @@ -1355,10 +1355,46 @@
1.4 product(uintx, ParGCDesiredObjsFromOverflowList, 20, \
1.5 "The desired number of objects to claim from the overflow list") \
1.6 \
1.7 - product(uintx, CMSParPromoteBlocksToClaim, 50, \
1.8 + product(uintx, CMSParPromoteBlocksToClaim, 16, \
1.9 "Number of blocks to attempt to claim when refilling CMS LAB for "\
1.10 "parallel GC.") \
1.11 \
1.12 + product(uintx, OldPLABWeight, 50, \
1.13 + "Percentage (0-100) used to weight the current sample when" \
1.14 + "computing exponentially decaying average for resizing CMSParPromoteBlocksToClaim.") \
1.15 + \
1.16 + product(bool, ResizeOldPLAB, true, \
1.17 + "Dynamically resize (old gen) promotion labs") \
1.18 + \
1.19 + product(bool, PrintOldPLAB, false, \
1.20 + "Print (old gen) promotion labs sizing decisions") \
1.21 + \
1.22 + product(uintx, CMSOldPLABMin, 16, \
1.23 + "Min size of CMS gen promotion lab caches per worker per blksize")\
1.24 + \
1.25 + product(uintx, CMSOldPLABMax, 1024, \
1.26 + "Max size of CMS gen promotion lab caches per worker per blksize")\
1.27 + \
1.28 + product(uintx, CMSOldPLABNumRefills, 4, \
1.29 + "Nominal number of refills of CMS gen promotion lab cache" \
1.30 + " per worker per block size") \
1.31 + \
1.32 + product(bool, CMSOldPLABResizeQuicker, false, \
1.33 + "Whether to react on-the-fly during a scavenge to a sudden" \
1.34 + " change in block demand rate") \
1.35 + \
1.36 + product(uintx, CMSOldPLABToleranceFactor, 4, \
1.37 + "The tolerance of the phase-change detector for on-the-fly" \
1.38 + " PLAB resizing during a scavenge") \
1.39 + \
1.40 + product(uintx, CMSOldPLABReactivityFactor, 2, \
1.41 + "The gain in the feedback loop for on-the-fly PLAB resizing" \
1.42 + " during a scavenge") \
1.43 + \
1.44 + product(uintx, CMSOldPLABReactivityCeiling, 10, \
1.45 + "The clamping of the gain in the feedback loop for on-the-fly" \
1.46 + " PLAB resizing during a scavenge") \
1.47 + \
1.48 product(bool, AlwaysPreTouch, false, \
1.49 "It forces all freshly committed pages to be pre-touched.") \
1.50 \
1.51 @@ -1400,27 +1436,54 @@
1.52 "Percentage (0-100) by which the CMS incremental mode duty cycle" \
1.53 " is shifted to the right within the period between young GCs") \
1.54 \
1.55 - product(uintx, CMSExpAvgFactor, 25, \
1.56 - "Percentage (0-100) used to weight the current sample when " \
1.57 - "computing exponential averages for CMS statistics") \
1.58 - \
1.59 - product(uintx, CMS_FLSWeight, 50, \
1.60 - "Percentage (0-100) used to weight the current sample when " \
1.61 - "computing exponentially decating averages for CMS FLS statistics") \
1.62 - \
1.63 - product(uintx, CMS_FLSPadding, 2, \
1.64 - "The multiple of deviation from mean to use for buffering " \
1.65 + product(uintx, CMSExpAvgFactor, 50, \
1.66 + "Percentage (0-100) used to weight the current sample when" \
1.67 + "computing exponential averages for CMS statistics.") \
1.68 + \
1.69 + product(uintx, CMS_FLSWeight, 75, \
1.70 + "Percentage (0-100) used to weight the current sample when" \
1.71 + "computing exponentially decating averages for CMS FLS statistics.") \
1.72 + \
1.73 + product(uintx, CMS_FLSPadding, 1, \
1.74 + "The multiple of deviation from mean to use for buffering" \
1.75 "against volatility in free list demand.") \
1.76 \
1.77 product(uintx, FLSCoalescePolicy, 2, \
1.78 "CMS: Aggression level for coalescing, increasing from 0 to 4") \
1.79 \
1.80 - product(uintx, CMS_SweepWeight, 50, \
1.81 + product(bool, FLSAlwaysCoalesceLarge, false, \
1.82 + "CMS: Larger free blocks are always available for coalescing") \
1.83 + \
1.84 + product(double, FLSLargestBlockCoalesceProximity, 0.99, \
1.85 + "CMS: the smaller the percentage the greater the coalition force")\
1.86 + \
1.87 + product(double, CMSSmallCoalSurplusPercent, 1.05, \
1.88 + "CMS: the factor by which to inflate estimated demand of small" \
1.89 + " block sizes to prevent coalescing with an adjoining block") \
1.90 + \
1.91 + product(double, CMSLargeCoalSurplusPercent, 0.95, \
1.92 + "CMS: the factor by which to inflate estimated demand of large" \
1.93 + " block sizes to prevent coalescing with an adjoining block") \
1.94 + \
1.95 + product(double, CMSSmallSplitSurplusPercent, 1.10, \
1.96 + "CMS: the factor by which to inflate estimated demand of small" \
1.97 + " block sizes to prevent splitting to supply demand for smaller" \
1.98 + " blocks") \
1.99 + \
1.100 + product(double, CMSLargeSplitSurplusPercent, 1.00, \
1.101 + "CMS: the factor by which to inflate estimated demand of large" \
1.102 + " block sizes to prevent splitting to supply demand for smaller" \
1.103 + " blocks") \
1.104 + \
1.105 + product(bool, CMSExtrapolateSweep, false, \
1.106 + "CMS: cushion for block demand during sweep") \
1.107 + \
1.108 + product(uintx, CMS_SweepWeight, 75, \
1.109 "Percentage (0-100) used to weight the current sample when " \
1.110 "computing exponentially decaying average for inter-sweep " \
1.111 "duration") \
1.112 \
1.113 - product(uintx, CMS_SweepPadding, 2, \
1.114 + product(uintx, CMS_SweepPadding, 1, \
1.115 "The multiple of deviation from mean to use for buffering " \
1.116 "against volatility in inter-sweep duration.") \
1.117 \
1.118 @@ -1459,6 +1522,13 @@
1.119 product(uintx, CMSIndexedFreeListReplenish, 4, \
1.120 "Replenish and indexed free list with this number of chunks") \
1.121 \
1.122 + product(bool, CMSReplenishIntermediate, true, \
1.123 + "Replenish all intermediate free-list caches") \
1.124 + \
1.125 + product(bool, CMSSplitIndexedFreeListBlocks, true, \
1.126 + "When satisfying batched demand, splot blocks from the " \
1.127 + "IndexedFreeList whose size is a multiple of requested size") \
1.128 + \
1.129 product(bool, CMSLoopWarn, false, \
1.130 "Warn in case of excessive CMS looping") \
1.131 \
1.132 @@ -1593,6 +1663,18 @@
1.133 "Bitmap operations should process at most this many bits" \
1.134 "between yields") \
1.135 \
1.136 + product(bool, CMSDumpAtPromotionFailure, false, \
1.137 + "Dump useful information about the state of the CMS old " \
1.138 + " generation upon a promotion failure.") \
1.139 + \
1.140 + product(bool, CMSPrintChunksInDump, false, \
1.141 + "In a dump enabled by CMSDumpAtPromotionFailure, include " \
1.142 + " more detailed information about the free chunks.") \
1.143 + \
1.144 + product(bool, CMSPrintObjectsInDump, false, \
1.145 + "In a dump enabled by CMSDumpAtPromotionFailure, include " \
1.146 + " more detailed information about the allocated objects.") \
1.147 + \
1.148 diagnostic(bool, FLSVerifyAllHeapReferences, false, \
1.149 "Verify that all refs across the FLS boundary " \
1.150 " are to valid objects") \
1.151 @@ -1677,6 +1759,10 @@
1.152 "The youngest generation collection does not require " \
1.153 "a guarantee of full promotion of all live objects.") \
1.154 \
1.155 + product(bool, PrintPromotionFailure, false, \
1.156 + "Print additional diagnostic information following " \
1.157 + " promotion failure") \
1.158 + \
1.159 notproduct(bool, PromotionFailureALot, false, \
1.160 "Use promotion failure handling on every youngest generation " \
1.161 "collection") \
