GC 相关详细参数

C:Program FilesJavajdk1.8.0_121in>java -XX:+PrintFlagsFinal -version | findstr "GC"
    uintx AdaptiveSizeMajorGCDecayTimeScale         = 10                                  {product}
    uintx AutoGCSelectPauseMillis                   = 5000                                {product}
     bool BindGCTaskThreadsToCPUs                   = false                               {product}
    uintx CMSFullGCsBeforeCompaction                = 0                                   {product}
    uintx ConcGCThreads                             = 0                                   {product}
     bool DisableExplicitGC                         = false                               {product}
     bool ExplicitGCInvokesConcurrent               = false                               {product}
     bool ExplicitGCInvokesConcurrentAndUnloadsClasses  = false                               {product}
    uintx G1MixedGCCountTarget                      = 8                                   {product}
    uintx GCDrainStackTargetSize                    = 64                                  {product}
    uintx GCHeapFreeLimit                           = 2                                   {product}
    uintx GCLockerEdenExpansionPercent              = 5                                   {product}
     bool GCLockerInvokesConcurrent                 = false                               {product}
    uintx GCLogFileSize                             = 8192                                {product}
    uintx GCPauseIntervalMillis                     = 0                                   {product}
    uintx GCTaskTimeStampEntries                    = 200                                 {product}
    uintx GCTimeLimit                               = 98                                  {product}
    uintx GCTimeRatio                               = 99                                  {product}
     bool HeapDumpAfterFullGC                       = false                               {manageable}
     bool HeapDumpBeforeFullGC                      = false                               {manageable}
    uintx HeapSizePerGCThread                       = 87241520                            {product}
    uintx MaxGCMinorPauseMillis                     = 4294967295                          {product}
    uintx MaxGCPauseMillis                          = 4294967295                          {product}
    uintx NumberOfGCLogFiles                        = 0                                   {product}
     intx ParGCArrayScanChunk                       = 50                                  {product}
    uintx ParGCDesiredObjsFromOverflowList          = 20                                  {product}
     bool ParGCTrimOverflow                         = true                                {product}
     bool ParGCUseLocalOverflow                     = false                               {product}
    uintx ParallelGCBufferWastePct                  = 10                                  {product}
    uintx ParallelGCThreads                         = 13                                  {product}
     bool ParallelGCVerbose                         = false                               {product}
     bool PrintClassHistogramAfterFullGC            = false                               {manageable}
     bool PrintClassHistogramBeforeFullGC           = false                               {manageable}
     bool PrintGC                                   = false                               {manageable}
     bool PrintGCApplicationConcurrentTime          = false                               {product}
     bool PrintGCApplicationStoppedTime             = false                               {product}
     bool PrintGCCause                              = true                                {product}
     bool PrintGCDateStamps                         = false                               {manageable}
     bool PrintGCDetails                            = false                               {manageable}
     bool PrintGCID                                 = false                               {manageable}
     bool PrintGCTaskTimeStamps                     = false                               {product}
     bool PrintGCTimeStamps                         = false                               {manageable}
     bool PrintHeapAtGC                             = false                               {product rw}
     bool PrintHeapAtGCExtended                     = false                               {product rw}
     bool PrintJNIGCStalls                          = false                               {product}
     bool PrintParallelOldGCPhaseTimes              = false                               {product}
     bool PrintReferenceGC                          = false                               {product}
     bool ScavengeBeforeFullGC                      = true                                {product}
     bool TraceDynamicGCThreads                     = false                               {product}
     bool TraceParallelOldGCTasks                   = false                               {product}
     bool UseAdaptiveGCBoundary                     = false                               {product}
     bool UseAdaptiveSizeDecayMajorGCCost           = true                                {product}
     bool UseAdaptiveSizePolicyWithSystemGC         = false                               {product}
     bool UseAutoGCSelectPolicy                     = false                               {product}
     bool UseConcMarkSweepGC                        = false                               {product}
     bool UseDynamicNumberOfGCThreads               = false                               {product}
     bool UseG1GC                                   = false                               {product}
     bool UseGCLogFileRotation                      = false                               {product}
     bool UseGCOverheadLimit                        = true                                {product}
     bool UseGCTaskAffinity                         = false                               {product}
     bool UseMaximumCompactionOnSystemGC            = true                                {product}
     bool UseParNewGC                               = false                               {product}
     bool UseParallelGC                            := true                                {product}
     bool UseParallelOldGC                          = true                                {product}
     bool UseSerialGC                               = false                               {product}
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)