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src/hotspot/share/gc/g1/g1_globals.hpp

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 228           "Percentage (0-100) of the heap size to use as default "          \
 229           "minimum young gen size.")                                        \
 230           range(0, 100)                                                     \
 231           constraint(G1NewSizePercentConstraintFunc,AfterErgo)              \
 232                                                                             \
 233   experimental(uintx, G1MixedGCLiveThresholdPercent, 85,                    \
 234           "Threshold for regions to be considered for inclusion in the "    \
 235           "collection set of mixed GCs. "                                   \
 236           "Regions with live bytes exceeding this will not be collected.")  \
 237           range(0, 100)                                                     \
 238                                                                             \
 239   product(uintx, G1HeapWastePercent, 5,                                     \
 240           "Amount of space, expressed as a percentage of the heap size, "   \
 241           "that G1 is willing not to collect to avoid expensive GCs.")      \
 242           range(0, 100)                                                     \
 243                                                                             \
 244   product(uintx, G1MixedGCCountTarget, 8,                                   \
 245           "The target number of mixed GCs after a marking cycle.")          \
 246           range(0, max_uintx)                                               \
 247                                                                             \
 248   experimental(bool, G1PretouchAuxiliaryMemory, false,                      \
 249           "Pre-touch large auxiliary data structures used by the GC.")      \
 250                                                                             \
 251   experimental(bool, G1EagerReclaimHumongousObjects, true,                  \
 252           "Try to reclaim dead large objects at every young GC.")           \
 253                                                                             \
 254   experimental(bool, G1EagerReclaimHumongousObjectsWithStaleRefs, true,     \
 255           "Try to reclaim dead large objects that have a few stale "        \
 256           "references at every young GC.")                                  \
 257                                                                             \
 258   experimental(size_t, G1RebuildRemSetChunkSize, 256 * K,                   \
 259           "Chunk size used for rebuilding the remembered set.")             \
 260           range(4 * K, 32 * M)                                              \
 261                                                                             \
 262   experimental(uintx, G1OldCSetRegionThresholdPercent, 10,                  \
 263           "An upper bound for the number of old CSet regions expressed "    \
 264           "as a percentage of the heap size.")                              \
 265           range(0, 100)                                                     \
 266                                                                             \
 267   notproduct(bool, G1EvacuationFailureALot, false,                          \
 268           "Force use of evacuation failure handling during certain "        \
 269           "evacuation pauses")                                              \
 270                                                                             \




 228           "Percentage (0-100) of the heap size to use as default "          \
 229           "minimum young gen size.")                                        \
 230           range(0, 100)                                                     \
 231           constraint(G1NewSizePercentConstraintFunc,AfterErgo)              \
 232                                                                             \
 233   experimental(uintx, G1MixedGCLiveThresholdPercent, 85,                    \
 234           "Threshold for regions to be considered for inclusion in the "    \
 235           "collection set of mixed GCs. "                                   \
 236           "Regions with live bytes exceeding this will not be collected.")  \
 237           range(0, 100)                                                     \
 238                                                                             \
 239   product(uintx, G1HeapWastePercent, 5,                                     \
 240           "Amount of space, expressed as a percentage of the heap size, "   \
 241           "that G1 is willing not to collect to avoid expensive GCs.")      \
 242           range(0, 100)                                                     \
 243                                                                             \
 244   product(uintx, G1MixedGCCountTarget, 8,                                   \
 245           "The target number of mixed GCs after a marking cycle.")          \
 246           range(0, max_uintx)                                               \
 247                                                                             \



 248   experimental(bool, G1EagerReclaimHumongousObjects, true,                  \
 249           "Try to reclaim dead large objects at every young GC.")           \
 250                                                                             \
 251   experimental(bool, G1EagerReclaimHumongousObjectsWithStaleRefs, true,     \
 252           "Try to reclaim dead large objects that have a few stale "        \
 253           "references at every young GC.")                                  \
 254                                                                             \
 255   experimental(size_t, G1RebuildRemSetChunkSize, 256 * K,                   \
 256           "Chunk size used for rebuilding the remembered set.")             \
 257           range(4 * K, 32 * M)                                              \
 258                                                                             \
 259   experimental(uintx, G1OldCSetRegionThresholdPercent, 10,                  \
 260           "An upper bound for the number of old CSet regions expressed "    \
 261           "as a percentage of the heap size.")                              \
 262           range(0, 100)                                                     \
 263                                                                             \
 264   notproduct(bool, G1EvacuationFailureALot, false,                          \
 265           "Force use of evacuation failure handling during certain "        \
 266           "evacuation pauses")                                              \
 267                                                                             \


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