目录
- Java启动参数分类
- 一、JVM标准参数(-)
- 二、JVM非标准参数(-X)
- 三、JVM非Stable参数（-XX）
- JDK8-XX参数整理
Java启动参数分类
- 类别1: 其一是标准参数（-），所有的JVM实现都必须实现这些参数的功能，而且向后兼容；
- 类别2: 其二是非标准参数（-X），默认jvm实现这些参数的功能，但是并不保证所有jvm实现都满足，且不保证向后兼容；
- 类别3: 其三是非Stable参数（-XX），此类参数各个jvm实现会有所不同，将来可能会随时取消，需要慎重使用；
一、JVM标准参数(-)
获取方法: java -help
JVM的标准参数都是以”-“开头，通过输入”java -help”或者”java -?”，可以查看JVM标准参数列表。如
以下是JVM标准参数的详细介绍(加粗标记的参数请着重注意):
-client
设置jvm使用client模式，特点是启动速度比较快，但运行时性能和内存管理效率不高，通常用于客户端应用程序或者PC应用开发和调试。
-server
设置jvm使server模式，特点是启动速度比较慢，但运行时性能和内存管理效率很高，适用于生产环境。在具有64位能力的jdk环境下将默认启用该模式，而忽略-client参数。
-agentlib:libname[=options]
用于装载本地lib包；
其中libname为本地代理库文件名，默认搜索路径为环境变量PATH中的路径，options为传给本地库启动时的参数，多个参数之间用逗号分隔。在Windows平台上jvm搜索本地库名为libname.dll的文件，在linux上jvm搜索本地库名为libname.so的文件，搜索路径环境变量在不同系统上有所不同，比如Solaries上就默认搜索LD_LIBRARY_PATH。
比如：-agentlib:hprof
用来获取jvm的运行情况，包括CPU、内存、线程等的运行数据，并可输出到指定文件中；windows中搜索路径为JRE_HOME/bin/hprof.dll。
-agentpath:pathname[=options]
按全路径装载本地库，不再搜索PATH中的路径；其他功能和agentlib相同；更多的信息待续，在后续的JVMTI部分会详述。
-classpath classpath
-cp classpath
告知jvm搜索目录名、jar文档名、zip文档名，之间用分号;分隔；使用-classpath后jvm将不再使用CLASSPATH中的类搜索路径，如果-classpath和CLASSPATH都没有设置，则jvm使用当前路径(.)作为类搜索路径。
jvm搜索类的方式和顺序为：Bootstrap，Extension，User。
Bootstrap中的路径是jvm自带的jar或zip文件，jvm首先搜索这些包文件，用System.getProperty(“sun.boot.class.path”)可得到搜索路径。
Extension是位于JRE_HOME/lib/ext目录下的jar文件，jvm在搜索完Bootstrap后就搜索该目录下的jar文件，用System.getProperty(“java.ext.dirs”)可得到搜索路径。
User搜索顺序为当前路径.、CLASSPATH、-classpath，jvm最后搜索这些目录，用System.getProperty(“java.class.path”)可得到搜索路径。
-Dproperty=value
设置系统属性名/值对，运行在此jvm之上的应用程序可用System.getProperty(“property”)得到value的值。
如果value中有空格，则需要用双引号将该值括起来，如-Dname=”space string”。
该参数通常用于设置系统级全局变量值，如配置文件路径，以便该属性在程序中任何地方都可访问。
-enableassertions[:”…” | : ]
-ea[:”…” | : ]
上述参数就用来设置jvm是否启动断言机制（从JDK 1.4开始支持），缺省时jvm关闭断言机制。
用-ea 可打开断言机制，不加和classname时运行所有包和类中的断言，如果希望只运行某些包或类中的断言，可将包名或类名加到-ea之后。例如要启动包com.wombat.fruitbat中的断言，可用命令java -ea:com.wombat.fruitbat…。
-disableassertions[:”…” | :
二、JVM非标准参数(-X)
获取方法: java -X
通过”java -X”可以输出非标准参数列表，如下所示：
非标准参数又称为扩展参数，其列表如下：
-Xint
设置jvm以解释模式运行，所有的字节码将被直接执行，而不会编译成本地码。
-Xbatch
关闭后台代码编译，强制在前台编译，编译完成之后才能进行代码执行；
默认情况下，jvm在后台进行编译，若没有编译完成，则前台运行代码时以解释模式运行。
-Xbootclasspath:bootclasspath
让jvm从指定路径（可以是分号分隔的目录、jar、或者zip）中加载bootclass，用来替换jdk的rt.jar；若非必要，一般不会用到；
-Xbootclasspath/a:path
将指定路径的所有文件追加到默认bootstrap路径中；
-Xbootclasspath/p:path
让jvm优先于bootstrap默认路径加载指定路径的所有文件；
-Xcheck:jni
对JNI函数进行附加check；此时jvm将校验传递给JNI函数参数的合法性，在本地代码中遇到非法数据时，jmv将报一个致命错误而终止；使用该参数后将造成性能下降，请慎用。
-Xfuture
让jvm对类文件执行严格的格式检查（默认jvm不进行严格格式检查），以符合类文件格式规范，推荐开发人员使用该参数。
-Xnoclassgc
关闭针对class的gc功能；因为其阻止内存回收，所以可能会导致OutOfMemoryError错误，慎用；
-Xincgc
开启增量gc（默认为关闭）；这有助于减少长时间GC时应用程序出现的停顿；但由于可能和应用程序并发执行，所以会降低CPU对应用的处理能力。
-Xloggc:file
与-verbose:gc功能类似，只是将每次GC事件的相关情况记录到一个文件中，文件的位置最好在本地，以避免网络的潜在问题。
若与verbose命令同时出现在命令行中，则以-Xloggc为准。
-Xms
指定jvm堆的初始大小，默认为物理内存的1/64，最小为1M；可以指定单位，比如k、m，若不指定，则默认为字节。
-Xmx
指定jvm堆的最大值，默认为物理内存的1/4或者1G，最小为2M；单位与-Xms一致。
-Xss
设置单个线程栈的大小，一般默认为512k。
-Xprof
输出 cpu 配置文件数据
-Xrs
减少jvm对操作系统信号（signals）的使用，该参数从1.3.1开始有效；
从jdk1.3.0开始，jvm允许程序在关闭之前还可以执行一些代码（比如关闭数据库的连接池），即使jvm被突然终止；
jvm关闭工具通过监控控制台的相关事件而满足以上的功能；更确切的说，通知在关闭工具执行之前，先注册控制台的控制handler，然后对CTRL_C_EVENT, CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, and CTRL_SHUTDOWN_EVENT这几类事件直接返回true。
但如果jvm以服务的形式在后台运行（比如servlet引擎），他能接收CTRL_LOGOFF_EVENT事件，但此时并不需要初始化关闭程序；为了避免类似冲突的再次出现，从jdk1.3.1开始提供-Xrs参数；当此参数被设置之后，jvm将不接收控制台的控制handler，也就是说他不监控和处理CTRL_C_EVENT, CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT, or CTRL_SHUTDOWN_EVENT事件。
上面这些参数中，比如-Xmsn、-Xmxn……都是我们性能优化中很重要的参数；
-Xprof、-Xloggc:file等都是在没有专业跟踪工具情况下排错的好手；
三、JVM非Stable参数（-XX）
获取方法: java -XX:+PrintFlagsInitial
Java 6（update 21oder 21之后）版本， HotSpot JVM 提供给了两个新的参数，在JVM启动后，在命令行中可以输出所有XX参数和值。
-XX:+PrintFlagsFinal and -XX:+PrintFlagsInitial
读者可以使用以下语句输出所有的参数和默认值
java -XX:+PrintFlagsInitial >>1.txt 或者 java -XX:+PrintFlagsInitial>>1.txt
由于非State参数非常的多，因此这里就不列出所有参数进行讲解。只介绍我们比较常用的。
Java HotSpot VM中-XX:的可配置参数列表进行描述；
这些参数可以被松散的聚合成三类：
行为参数（Behavioral Options）：用于改变jvm的一些基础行为；
性能调优（Performance Tuning）：用于jvm的性能调优；
调试参数（Debugging Options）：一般用于打开跟踪、打印、输出等jvm参数，用于显示jvm更加详细的信息；
行为参数(功能开关) -XX:-DisableExplicitGC 禁止调用System.gc()；但jvm的gc仍然有效 -XX:+MaxFDLimit 最大化文件描述符的数量限制 -XX:+ScavengeBeforeFullGC 新生代GC优先于Full GC执行 -XX:+UseGCOverheadLimit 在抛出OOM之前限制jvm耗费在GC上的时间比例 -XX:-UseConcMarkSweepGC 对老生代采用并发标记交换算法进行GC -XX:-UseParallelGC 启用并行GC -XX:-UseParallelOldGC 对Full GC启用并行，当-XX:-UseParallelGC启用时该项自动启用 -XX:-UseSerialGC 启用串行GC -XX:+UseThreadPriorities 启用本地线程优先级 性能调优 -XX:LargePageSizeInBytes=4m 设置用于Java堆的大页面尺寸 -XX:MaxHeapFreeRatio=70 GC后java堆中空闲量占的最大比例 -XX:MaxNewSize=size 新生成对象能占用内存的最大值 -XX:MaxPermSize=64m 老生代对象能占用内存的最大值 -XX:MinHeapFreeRatio=40 GC后java堆中空闲量占的最小比例 -XX:NewRatio=2 新生代内存容量与老生代内存容量的比例 -XX:NewSize=2.125m 新生代对象生成时占用内存的默认值 -XX:ReservedCodeCacheSize=32m 保留代码占用的内存容量 -XX:ThreadStackSize=512 设置线程栈大小，若为0则使用系统默认值 -XX:+UseLargePages 使用大页面内存 调试参数 -XX:-CITime 打印消耗在JIT编译的时间 -XX:ErrorFile=./hs_err_pid<pid>.log 保存错误日志或者数据到文件中 -XX:-ExtendedDTraceProbes 开启solaris特有的dtrace探针 -XX:HeapDumpPath=./java_pid<pid>.hprof 指定导出堆信息时的路径或文件名 -XX:-HeapDumpOnOutOfMemoryError 当首次遭遇OOM时导出此时堆中相关信息 -XX:OnError="<cmd args>;<cmd args>" 出现致命ERROR之后运行自定义命令 -XX:OnOutOfMemoryError="<cmd args>;<cmd args>" 当首次遭遇OOM时执行自定义命令 -XX:-PrintClassHistogram 遇到Ctrl-Break后打印类实例的柱状信息，与jmap -histo功能相同 -XX:-PrintConcurrentLocks 遇到Ctrl-Break后打印并发锁的相关信息，与jstack -l功能相同 -XX:-PrintCommandLineFlags 打印在命令行中出现过的标记 -XX:-PrintCompilation 当一个方法被编译时打印相关信息 -XX:-PrintGC 每次GC时打印相关信息 -XX:-PrintGC Details 每次GC时打印详细信息 -XX:-PrintGCTimeStamps 打印每次GC的时间戳 -XX:-TraceClassLoading 跟踪类的加载信息 -XX:-TraceClassLoadingPreorder 跟踪被引用到的所有类的加载信息 -XX:-TraceClassResolution 跟踪常量池 -XX:-TraceClassUnloading 跟踪类的卸载信息 -XX:-TraceLoaderConstraints 跟踪类加载器约束的相关信息
JDK8-XX参数整理
JDK8 获取所有-XX参数列表
java -XX:+PrintFlagsInitial >>1.txt
1.8所有-XX参数列表
| 数据类型 | 参数名 | 默认值 | 不清楚干嘛的 | 自己的总结 |
|---|---|---|---|---|
| intx | ActiveProcessorCount | -1 | {product} | |
| uintx | AdaptiveSizeDecrementScaleFactor | 4 | {product} | |
| uintx | AdaptiveSizeMajorGCDecayTimeScale | 10 | {product} | |
| uintx | AdaptiveSizePausePolicy | 0 | {product} | |
| uintx | AdaptiveSizePolicyCollectionCostMargin | 50 | {product} | |
| uintx | AdaptiveSizePolicyInitializingSteps | 20 | {product} | |
| uintx | AdaptiveSizePolicyOutputInterval | 0 | {product} | |
| uintx | AdaptiveSizePolicyWeight | 10 | {product} | |
| uintx | AdaptiveSizeThroughPutPolicy | 0 | {product} | |
| uintx | AdaptiveTimeWeight | 25 | {product} | |
| bool | AdjustConcurrency | false | {product} | |
| bool | AggressiveHeap | false | {product} | |
| bool | AggressiveOpts | false | {product} | |
| intx | AliasLevel | 3 | {C2 | product} |
| bool | AlignVector | true | {C2 | product} |
| intx | AllocateInstancePrefetchLines | 1 | {product} | |
| intx | AllocatePrefetchDistance | -1 | {product} | |
| intx | AllocatePrefetchInstr | 0 | {product} | |
| intx | AllocatePrefetchLines | 3 | {product} | |
| intx | AllocatePrefetchStepSize | 16 | {product} | |
| intx | AllocatePrefetchStyle | 1 | {product} | |
| bool | AllowJNIEnvProxy | false | {product} | |
| bool | AllowNonVirtualCalls | false | {product} | |
| bool | AllowParallelDefineClass | false | {product} | |
| bool | AllowUserSignalHandlers | false | {product} | |
| bool | AlwaysActAsServerClassMachine | false | {product} | |
| bool | AlwaysCompileLoopMethods | false | {product} | |
| bool | AlwaysLockClassLoader | false | {product} | |
| bool | AlwaysPreTouch | false | {product} | |
| bool | AlwaysRestoreFPU | false | {product} | |
| bool | AlwaysTenure | false | {product} | |
| bool | AssertOnSuspendWaitFailure | false | {product} | |
| bool | AssumeMP | false | {product} | |
| intx | AutoBoxCacheMax | 128 | {C2 | product} |
| uintx | AutoGCSelectPauseMillis | 5000 | {product} | |
| intx | BCEATraceLevel | 0 | {product} | |
| intx | BackEdgeThreshold | {pd | product} | |
| bool | BackgroundCompilation | true | {pd | product} |
| uintx | BaseFootPrintEstimate | {product} | ||
| intx | BiasedLockingBulkRebiasThreshold | 20 | {product} | |
| intx | BiasedLockingBulkRevokeThreshold | 40 | {product} | |
| intx | BiasedLockingDecayTime | 25000 | {product} | |
| intx | BiasedLockingStartupDelay | 4000 | {product} | |
| bool | BindGCTaskThreadsToCPUs | false | {product} | |
| bool | BlockLayoutByFrequency | true | {C2 | product} |
| intx | BlockLayoutMinDiamondPercentage | 20 | {C2 | product} |
| bool | BlockLayoutRotateLoops | true | {C2 | product} |
| bool | BranchOnRegister | false | {C2 | product} |
| bool | BytecodeVerificationLocal | false | {product} | |
| bool | BytecodeVerificationRemote | true | {product} | |
| bool | C1OptimizeVirtualCallProfiling | true | {C1 | product} |
| bool | C1ProfileBranches | true | {C1 | product} |
| bool | C1ProfileCalls | true | {C1 | product} |
| bool | C1ProfileCheckcasts | true | {C1 | product} |
| bool | C1ProfileInlinedCalls | true | {C1 | product} |
| bool | C1ProfileVirtualCalls | true | {C1 | product} |
| bool | C1UpdateMethodData | true | {C1 | product} |
| intx | CICompilerCount | 2 | {product} | |
| bool | CICompilerCountPerCPU | false | {product} | |
| bool | CITime | false | {product} | |
| bool | CMSAbortSemantics | false | {product} | |
| uintx | CMSAbortablePrecleanMinWorkPerIteration | 100 | {product} | |
| intx | CMSAbortablePrecleanWaitMillis | 100 | {manageable} | |
| uintx | CMSBitMapYieldQuantum | {product} | ||
| uintx | CMSBootstrapOccupancy | 50 | {product} | |
| bool | CMSClassUnloadingEnabled | true | {product} | |
| uintx | CMSClassUnloadingMaxInterval | 0 | {product} | |
| bool | CMSCleanOnEnter | true | {product} | |
| bool | CMSCompactWhenClearAllSoftRefs | true | {product} | |
| uintx | CMSConcMarkMultiple | 32 | {product} | |
| bool | CMSConcurrentMTEnabled | true | {product} | |
| uintx | CMSCoordinatorYieldSleepCount | 10 | {product} | |
| bool | CMSDumpAtPromotionFailure | false | {product} | |
| bool | CMSEdenChunksRecordAlways | true | {product} | |
| uintx | CMSExpAvgFactor | 50 | {product} | |
| bool | CMSExtrapolateSweep | false | {product} | |
| uintx | CMSFullGCsBeforeCompaction | 0 | {product} | |
| uintx | CMSIncrementalDutyCycle | 10 | {product} | |
| uintx | CMSIncrementalDutyCycleMin | 0 | {product} | |
| bool | CMSIncrementalMode | false | {product} | |
| uintx | CMSIncrementalOffset | 0 | {product} | |
| bool | CMSIncrementalPacing | true | {product} | |
| uintx | CMSIncrementalSafetyFactor | 10 | {product} | |
| uintx | CMSIndexedFreeListReplenish | 4 | {product} | |
| intx | CMSInitiatingOccupancyFraction | -1 | {product} | |
| uintx | CMSIsTooFullPercentage | 98 | {product} | |
| double | CMSLargeCoalSurplusPercent | 0. | {product} | |
| double | CMSLargeSplitSurplusPercent | 1.000000 | {product} | |
| bool | CMSLoopWarn | false | {product} | |
| uintx | CMSMaxAbortablePrecleanLoops | 0 | {product} | |
| intx | CMSMaxAbortablePrecleanTime | 5000 | {product} | |
| uintx | CMSOldPLABMax | 1024 | {product} | |
| uintx | CMSOldPLABMin | 16 | {product} | |
| uintx | CMSOldPLABNumRefills | 4 | {product} | |
| uintx | CMSOldPLABReactivityFactor | 2 | {product} | |
| bool | CMSOldPLABResizeQuicker | false | {product} | |
| uintx | CMSOldPLABToleranceFactor | 4 | {product} | |
| bool | CMSPLABRecordAlways | true | {product} | |
| uintx | CMSParPromoteBlocksToClaim | 16 | {product} | |
| bool | CMSParallelInitialMarkEnabled | true | {product} | |
| bool | CMSParallelRemarkEnabled | true | {product} | |
| bool | CMSParallelSurvivorRemarkEnabled | true | {product} | |
| uintx | CMSPrecleanDenominator | 3 | {product} | |
| uintx | CMSPrecleanIter | 3 | {product} | |
| uintx | CMSPrecleanNumerator | 2 | {product} | |
| bool | CMSPrecleanRefLists1 | true | {product} | |
| bool | CMSPrecleanRefLists2 | false | {product} | |
| bool | CMSPrecleanSurvivors1 | false | {product} | |
| bool | CMSPrecleanSurvivors2 | true | {product} | |
| uintx | CMSPrecleanThreshold | 1000 | {product} | |
| bool | CMSPrecleaningEnabled | true | {product} | |
| bool | CMSPrintChunksInDump | false | {product} | |
| bool | CMSPrintEdenSurvivorChunks | false | {product} | |
| bool | CMSPrintObjectsInDump | false | {product} | |
| uintx | CMSRemarkVerifyVariant | 1 | {product} | |
| bool | CMSReplenishIntermediate | true | {product} | |
| uintx | CMSRescanMultiple | 32 | {product} | |
| uintx | CMSSamplingGrain | 16384 | {product} | |
| bool | CMSScavengeBeforeRemark | false | {product} | |
| uintx | CMSScheduleRemarkEdenPenetration | 50 | {product} | |
| uintx | CMSScheduleRemarkEdenSizeThreshold | {product} | ||
| uintx | CMSScheduleRemarkSamplingRatio | 5 | {product} | |
| double | CMSSmallCoalSurplusPercent | 1.050000 | {product} | |
| double | CMSSmallSplitSurplusPercent | 1. | {product} | |
| bool | CMSSplitIndexedFreeListBlocks | true | {product} | |
| intx | CMSTriggerInterval | -1 | {manageable} | |
| uintx | CMSTriggerRatio | 80 | {product} | |
| intx | CMSWaitDuration | 2000 | {manageable} | |
| uintx | CMSWorkQueueDrainThreshold | 10 | {product} | |
| bool | CMSYield | true | {product} | |
| uintx | CMSYieldSleepCount | 0 | {product} | |
| uintx | CMSYoungGenPerWorker | {pd | product} | |
| uintx | CMS_FLSPadding | 1 | {product} | |
| uintx | CMS_FLSWeight | 75 | {product} | |
| uintx | CMS_SweepPadding | 1 | {product} | |
| uintx | CMS_SweepTimerThresholdMillis | 10 | {product} | |
| uintx | CMS_SweepWeight | 75 | {product} | |
| bool | CheckEndorsedAndExtDirs | false | {product} | |
| bool | CheckJNICalls | false | {product} | |
| bool | ClassUnloading | true | {product} | |
| bool | ClassUnloadingWithConcurrentMark | true | {product} | |
| intx | ClearFPUAtPark | 0 | {product} | |
| bool | ClipInlining | true | {product} | |
| uintx | CodeCacheExpansionSize | 65536 | {pd | product} |
| uintx | CodeCacheMinimumFreeSpace | {product} | ||
| bool | CollectGen0First | false | {product} | |
| bool | CompactFields | true | {product} | |
| intx | CompilationPolicyChoice | 0 | {product} | |
| ccstrlist | CompileCommand | {product} | ||
| ccstr | CompileCommandFile | {product} | ||
| ccstrlist | CompileOnly | {product} | ||
| intx | CompileThreshold | 10000 | {pd | product} |
| bool | CompilerThreadHintNoPreempt | true | {product} | |
| intx | CompilerThreadPriority | -1 | {product} | |
| intx | CompilerThreadStackSize | 0 | {pd | product} |
| uintx | CompressedClassSpaceSize | {product} | ||
| uintx | ConcGCThreads | 0 | {product} | |
| intx | ConditionalMoveLimit | 3 | {C2 | pd |
| intx | ContendedPaddingWidth | 128 | {product} | |
| bool | ConvertSleepToYield | true | {pd | product} |
| bool | ConvertYieldToSleep | false | {product} | |
| bool | CrashOnOutOfMemoryError | false | {product} | |
| bool | CreateMinidumpOnCrash | false | {product} | |
| bool | CriticalJNINatives | true | {product} | |
| bool | DTraceAllocProbes | false | {product} | |
| bool | DTraceMethodProbes | false | {product} | |
| bool | DTraceMonitorProbes | false | {product} | |
| bool | Debugging | false | {product} | |
| uintx | DefaultMaxRAMFraction | 4 | {product} | |
| intx | DefaultThreadPriority | -1 | {product} | |
| intx | DeferPollingPageLoopCount | -1 | {product} | |
| intx | DeferThrSuspendLoopCount | 4000 | {product} | |
| bool | DeoptimizeRandom | false | {product} | |
| bool | DisableAttachMechanism | false | {product} | |
| bool | DisableExplicitGC | false | {product} | |
| bool | DisplayVMOutputToStderr | false | {product} | |
| bool | DisplayVMOutputToStdout | false | {product} | |
| bool | DoEscapeAnalysis | true | {C2 | product} |
| bool | DontCompileHugeMethods | true | {product} | |
| bool | DontYieldALot | false | {pd | product} |
| ccstr | DumpLoadedClassList | {product} | ||
| bool | DumpReplayDataOnError | true | {product} | |
| bool | DumpSharedSpaces | false | {product} | |
| bool | EagerXrunInit | false | {product} | |
| intx | EliminateAllocationArraySizeLimit | 64 | {C2 | product} |
| bool | EliminateAllocations | true | {C2 | product} |
| bool | EliminateAutoBox | true | {C2 | product} |
| bool | EliminateLocks | true | {C2 | product} |
| bool | EliminateNestedLocks | true | {C2 | product} |
| intx | EmitSync | 0 | {product} | |
| bool | EnableContended | true | {product} | |
| bool | EnableResourceManagementTLABCache | true | {product} | |
| bool | EnableSharedLookupCache | true | {product} | |
| bool | EnableTracing | false | {product} | |
| uintx | ErgoHeapSizeLimit | 0 | {product} | |
| ccstr | ErrorFile | {product} | ||
| ccstr | ErrorReportServer | {product} | ||
| double | EscapeAnalysisTimeout | 20.000000 | {C2 | product} |
| bool | EstimateArgEscape | true | {product} | |
| bool | ExitOnOutOfMemoryError | false | {product} | |
| bool | ExplicitGCInvokesConcurrent | false | {product} | |
| bool | ExplicitGCInvokesConcurrentAndUnloadsClasses | false | {product} | |
| bool | ExtendedDTraceProbes | false | {product} | |
| ccstr | ExtraSharedClassListFile | {product} | ||
| bool | FLSAlwaysCoalesceLarge | false | {product} | |
| uintx | FLSCoalescePolicy | 2 | {product} | |
| double | FLSLargestBlockCoalesceProximity | 0. | {product} | |
| bool | FailOverToOldVerifier | true | {product} | |
| bool | FastTLABRefill | true | {product} | |
| intx | FenceInstruction | 0 | {ARCH | product} |
| intx | FieldsAllocationStyle | 1 | {product} | |
| bool | FilterSpuriousWakeups | true | {product} | |
| ccstr | FlightRecorderOptions | {product} | ||
| bool | ForceNUMA | false | {product} | |
| bool | ForceTimeHighResolution | false | {product} | |
| intx | FreqInlineSize | 325 | {pd | product} |
| double | G1ConcMarkStepDurationMillis | 10.000000 | {product} | |
| uintx | G1ConcRSHotCardLimit | 4 | {product} | |
| uintx | G1ConcRSLogCacheSize | 10 | {product} | |
| intx | G1ConcRefinementGreenZone | 0 | {product} | |
| intx | G1ConcRefinementRedZone | 0 | {product} | |
| intx | G1ConcRefinementServiceIntervalMillis | 300 | {product} | |
| uintx | G1ConcRefinementThreads | 0 | {product} | |
| intx | G1ConcRefinementThresholdStep | 0 | {product} | |
| intx | G1ConcRefinementYellowZone | 0 | {product} | |
| uintx | G1ConfidencePercent | 50 | {product} | |
| uintx | G1HeapRegionSize | 0 | {product} | |
| uintx | G1HeapWastePercent | 5 | {product} | |
| uintx | G1MixedGCCountTarget | 8 | {product} | |
| intx | G1RSetRegionEntries | 0 | {product} | |
| uintx | G1RSetScanBlockSize | 64 | {product} | |
| intx | G1RSetSparseRegionEntries | 0 | {product} | |
| intx | G1RSetUpdatingPauseTimePercent | 10 | {product} | |
| intx | G1RefProcDrainInterval | 10 | {product} | |
| uintx | G1ReservePercent | 10 | {product} | |
| uintx | G1SATBBufferEnqueueingThresholdPercent | 60 | {product} | |
| intx | G1SATBBufferSize | 1024 | {product} | |
| intx | G1UpdateBufferSize | 256 | {product} | |
| bool | G1UseAdaptiveConcRefinement | true | {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} | |
| uintx | HeapBaseMinAddress | {pd | product} | |
| bool | HeapDumpAfterFullGC | false | {manageable} | |
| bool | HeapDumpBeforeFullGC | false | {manageable} | |
| bool | HeapDumpOnOutOfMemoryError | false | {manageable} | |
| ccstr | HeapDumpPath | {manageable} | ||
| uintx | HeapFirstMaximumCompactionCount | 3 | {product} | |
| uintx | HeapMaximumCompactionInterval | 20 | {product} | |
| uintx | HeapSizePerGCThread | {product} | ||
| bool | IgnoreEmptyClassPaths | false | {product} | |
| bool | IgnoreUnrecognizedVMOptions | false | {product} | |
| uintx | IncreaseFirstTierCompileThresholdAt | 50 | {product} | |
| bool | IncrementalInline | true | {C2 | product} |
| uintx | InitialBootClassLoaderMetaspaceSize | {product} | ||
| uintx | InitialCodeCacheSize | {pd | product} | |
| uintx | InitialHeapSize | 0 | {product} | |
| uintx | InitialRAMFraction | 64 | {product} | |
| double | InitialRAMPercentage | 1. | {product} | |
| uintx | InitialSurvivorRatio | 8 | {product} | |
| uintx | InitialTenuringThreshold | 7 | {product} | |
| uintx | InitiatingHeapOccupancyPercent | 45 | {product} | |
| bool | Inline | true | {product} | |
| ccstr | InlineDataFile | {product} | ||
| intx | InlineSmallCode | 1000 | {pd | product} |
| bool | InlineSynchronizedMethods | true | {C1 | product} |
| bool | InsertMemBarAfterArraycopy | true | {C2 | product} |
| intx | InteriorEntryAlignment | 16 | {C2 | pd |
| intx | InterpreterProfilePercentage | 33 | {product} | |
| bool | JNIDetachReleasesMonitors | true | {product} | |
| bool | JavaMonitorsInStackTrace | true | {product} | |
| intx | JavaPriority10_To_OSPriority | -1 | {product} | |
| intx | JavaPriority1_To_OSPriority | -1 | {product} | |
| intx | JavaPriority2_To_OSPriority | -1 | {product} | |
| intx | JavaPriority3_To_OSPriority | -1 | {product} | |
| intx | JavaPriority4_To_OSPriority | -1 | {product} | |
| intx | JavaPriority5_To_OSPriority | -1 | {product} | |
| intx | JavaPriority6_To_OSPriority | -1 | {product} | |
| intx | JavaPriority7_To_OSPriority | -1 | {product} | |
| intx | JavaPriority8_To_OSPriority | -1 | {product} | |
| intx | JavaPriority9_To_OSPriority | -1 | {product} | |
| bool | LIRFillDelaySlots | false | {C1 | pd |
| uintx | LargePageHeapSizeThreshold | {product} | ||
| uintx | LargePageSizeInBytes | 0 | {product} | |
| bool | LazyBootClassLoader | true | {product} | |
| intx | LiveNodeCountInliningCutoff | 40000 | {C2 | product} |
| bool | LoadExecStackDllInVMThread | true | {product} | |
| bool | LogCommercialFeatures | false | {product} | |
| intx | LoopMaxUnroll | 16 | {C2 | product} |
| intx | LoopOptsCount | 43 | {C2 | product} |
| intx | LoopUnrollLimit | 60 | {C2 | pd |
| intx | LoopUnrollMin | 4 | {C2 | product} |
| bool | LoopUnswitching | true | {C2 | product} |
| bool | ManagementServer | false | {product} | |
| uintx | MarkStackSize | {product} | ||
| uintx | MarkStackSizeMax | {product} | ||
| uintx | MarkSweepAlwaysCompactCount | 4 | {product} | |
| uintx | MarkSweepDeadRatio | 5 | {product} | |
| intx | MaxBCEAEstimateLevel | 5 | {product} | |
| intx | MaxBCEAEstimateSize | 150 | {product} | |
| uintx | MaxDirectMemorySize | 0 | {product} | |
| bool | MaxFDLimit | true | {product} | |
| uintx | MaxGCMinorPauseMillis | {product} | ||
| uintx | MaxGCPauseMillis | {product} | ||
| uintx | MaxHeapFreeRatio | 70 | {manageable} | |
| uintx | MaxHeapSize | {product} | ||
| intx | MaxInlineLevel | 9 | {product} | |
| intx | MaxInlineSize | 35 | {product} | |
| intx | MaxJNILocalCapacity | 65536 | {product} | |
| intx | MaxJavaStackTraceDepth | 1024 | {product} | |
| intx | MaxJumpTableSize | 65000 | {C2 | product} |
| intx | MaxJumpTableSparseness | 5 | {C2 | product} |
| intx | MaxLabelRootDepth | 1100 | {C2 | product} |
| intx | MaxLoopPad | 15 | {C2 | product} |
| uintx | MaxMetaspaceExpansion | {product} | ||
| uintx | MaxMetaspaceFreeRatio | 70 | {product} | |
| uintx | MaxMetaspaceSize | {product} | ||
| uintx | MaxNewSize | {product} | ||
| intx | MaxNodeLimit | 80000 | {C2 | product} |
| uint64_t | MaxRAM | 2 | {pd | product} |
| uintx | MaxRAMFraction | 4 | {product} | |
| double | MaxRAMPercentage | 25.000000 | {product} | |
| intx | MaxRecursiveInlineLevel | 1 | {product} | |
| uintx | MaxTenuringThreshold | 15 | {product} | |
| intx | MaxTrivialSize | 6 | {product} | |
| intx | MaxVectorSize | 32 | {C2 | product} |
| uintx | MetaspaceSize | {pd | product} | |
| bool | MethodFlushing | true | {product} | |
| uintx | MinHeapDeltaBytes | {product} | ||
| uintx | MinHeapFreeRatio | 40 | {manageable} | |
| intx | MinInliningThreshold | 250 | {product} | |
| intx | MinJumpTableSize | 10 | {C2 | pd |
| uintx | MinMetaspaceExpansion | {product} | ||
| uintx | MinMetaspaceFreeRatio | 40 | {product} | |
| uintx | MinRAMFraction | 2 | {product} | |
| double | MinRAMPercentage | 50.000000 | {product} | |
| uintx | MinSurvivorRatio | 3 | {product} | |
| uintx | MinTLABSize | 2048 | {product} | |
| intx | MonitorBound | 0 | {product} | |
| bool | MonitorInUseLists | false | {product} | |
| intx | MultiArrayExpandLimit | 6 | {C2 | product} |
| bool | MustCallLoadClassInternal | false | {product} | |
| uintx | NUMAChunkResizeWeight | 20 | {product} | |
| uintx | NUMAInterleaveGranularity | {product} | ||
| uintx | NUMAPageScanRate | 256 | {product} | |
| uintx | NUMASpaceResizeRate | {product} | ||
| bool | NUMAStats | false | {product} | |
| ccstr | NativeMemoryTracking | off | {product} | |
| bool | NeedsDeoptSuspend | false | {pd | product} |
| bool | NeverActAsServerClassMachine | false | {pd | product} |
| bool | NeverTenure | false | {product} | |
| uintx | NewRatio | 2 | {product} | |
| uintx | NewSize | {product} | ||
| uintx | NewSizeThreadIncrease | 5320 | {pd | product} |
| intx | NmethodSweepActivity | 10 | {product} | |
| intx | NmethodSweepCheckInterval | 5 | {product} | |
| intx | NmethodSweepFraction | 16 | {product} | |
| intx | NodeLimitFudgeFactor | 2000 | {C2 | product} |
| uintx | NumberOfGCLogFiles | 0 | {product} | |
| intx | NumberOfLoopInstrToAlign | 4 | {C2 | product} |
| intx | ObjectAlignmentInBytes | 8 | {lp64_product} | |
| uintx | OldPLABSize | 1024 | {product} | |
| uintx | OldPLABWeight | 50 | {product} | |
| uintx | OldSize | {product} | ||
| bool | OmitStackTraceInFastThrow | true | {product} | |
| ccstrlist | OnError | {product} | ||
| ccstrlist | OnOutOfMemoryError | {product} | ||
| intx | OnStackReplacePercentage | 140 | {pd | product} |
| bool | OptimizeFill | true | {C2 | product} |
| bool | OptimizePtrCompare | true | {C2 | product} |
| bool | OptimizeStringConcat | true | {C2 | product} |
| bool | OptoBundling | false | {C2 | pd |
| intx | OptoLoopAlignment | 16 | {pd | product} |
| bool | OptoScheduling | false | {C2 | pd |
| uintx | PLABWeight | 75 | {product} | |
| bool | PSChunkLargeArrays | true | {product} | |
| intx | ParGCArrayScanChunk | 50 | {product} | |
| uintx | ParGCDesiredObjsFromOverflowList | 20 | {product} | |
| bool | ParGCTrimOverflow | true | {product} | |
| bool | ParGCUseLocalOverflow | false | {product} | |
| uintx | ParallelGCBufferWastePct | 10 | {product} | |
| uintx | ParallelGCThreads | 0 | {product} | |
| bool | ParallelGCVerbose | false | {product} | |
| uintx | ParallelOldDeadWoodLimiterMean | 50 | {product} | |
| uintx | ParallelOldDeadWoodLimiterStdDev | 80 | {product} | |
| bool | ParallelRefProcBalancingEnabled | true | {product} | |
| bool | ParallelRefProcEnabled | false | {product} | |
| bool | PartialPeelAtUnsignedTests | true | {C2 | product} |
| bool | PartialPeelLoop | true | {C2 | product} |
| intx | PartialPeelNewPhiDelta | 0 | {C2 | product} |
| uintx | PausePadding | 1 | {product} | |
| intx | PerBytecodeRecompilationCutoff | 200 | {product} | |
| intx | PerBytecodeTrapLimit | 4 | {product} | |
| intx | PerMethodRecompilationCutoff | 400 | {product} | |
| intx | PerMethodTrapLimit | 100 | {product} | |
| bool | PerfAllowAtExitRegistration | false | {product} | |
| bool | PerfBypassFileSystemCheck | false | {product} | |
| intx | PerfDataMemorySize | 32768 | {product} | |
| intx | PerfDataSamplingInterval | 50 | {product} | |
| ccstr | PerfDataSaveFile | {product} | ||
| bool | PerfDataSaveToFile | false | {product} | |
| bool | PerfDisableSharedMem | false | {product} | |
| intx | PerfMaxStringConstLength | 1024 | {product} | |
| intx | PreInflateSpin | 10 | {pd | product} |
| bool | PreferContainerQuotaForCPUCount | true | {product} | |
| bool | PreferInterpreterNativeStubs | false | {pd | product} |
| intx | PrefetchCopyIntervalInBytes | -1 | {product} | |
| intx | PrefetchFieldsAhead | -1 | {product} | |
| intx | PrefetchScanIntervalInBytes | -1 | {product} | |
| bool | PreserveAllAnnotations | false | {product} | |
| bool | PreserveFramePointer | false | {pd | product} |
| uintx | PretenureSizeThreshold | 0 | {product} | |
| bool | PrintAdaptiveSizePolicy | false | {product} | |
| bool | PrintCMSInitiationStatistics | false | {product} | |
| intx | PrintCMSStatistics | 0 | {product} | |
| bool | PrintClassHistogram | false | {manageable} | |
| bool | PrintClassHistogramAfterFullGC | false | {manageable} | |
| bool | PrintClassHistogramBeforeFullGC | false | {manageable} | |
| bool | PrintCodeCache | false | {product} | |
| bool | PrintCodeCacheOnCompilation | false | {product} | |
| bool | PrintCommandLineFlags | false | {product} | |
| bool | PrintCompilation | false | {product} | |
| bool | PrintConcurrentLocks | false | {manageable} | |
| intx | PrintFLSCensus | 0 | {product} | |
| intx | PrintFLSStatistics | 0 | {product} | |
| bool | PrintFlagsFinal | false | {product} | |
| bool | PrintFlagsInitial | false | {product} | |
| 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 | PrintHeapAtSIGBREAK | true | {product} | |
| bool | PrintJNIGCStalls | false | {product} | |
| bool | PrintJNIResolving | false | {product} | |
| bool | PrintOldPLAB | false | {product} | |
| bool | PrintOopAddress | false | {product} | |
| bool | PrintPLAB | false | {product} | |
| bool | PrintParallelOldGCPhaseTimes | false | {product} | |
| bool | PrintPromotionFailure | false | {product} | |
| bool | PrintReferenceGC | false | {product} | |
| bool | PrintSafepointStatistics | false | {product} | |
| intx | PrintSafepointStatisticsCount | 300 | {product} | |
| intx | PrintSafepointStatisticsTimeout | -1 | {product} | |
| bool | PrintSharedArchiveAndExit | false | {product} | |
| bool | PrintSharedDictionary | false | {product} | |
| bool | PrintSharedSpaces | false | {product} | |
| bool | PrintStringDeduplicationStatistics | false | {product} | |
| bool | PrintStringTableStatistics | false | {product} | |
| bool | PrintTLAB | false | {product} | |
| bool | PrintTenuringDistribution | false | {product} | |
| bool | PrintTieredEvents | false | {product} | |
| bool | PrintVMOptions | false | {product} | |
| bool | PrintVMQWaitTime | false | {product} | |
| bool | PrintWarnings | true | {product} | |
| uintx | ProcessDistributionStride | 4 | {product} | |
| bool | ProfileInterpreter | true | {pd | product} |
| bool | ProfileIntervals | false | {product} | |
| intx | ProfileIntervalsTicks | 100 | {product} | |
| intx | ProfileMaturityPercentage | 20 | {product} | |
| bool | ProfileVM | false | {product} | |
| bool | ProfilerPrintByteCodeStatistics | false | {product} | |
| bool | ProfilerRecordPC | false | {product} | |
| uintx | PromotedPadding | 3 | {product} | |
| uintx | QueuedAllocationWarningCount | 0 | {product} | |
| uintx | RTMRetryCount | 5 | {ARCH | product} |
| bool | RangeCheckElimination | true | {product} | |
| intx | ReadPrefetchInstr | 0 | {ARCH | product} |
| bool | ReassociateInvariants | true | {C2 | product} |
| bool | ReduceBulkZeroing | true | {C2 | product} |
| bool | ReduceFieldZeroing | true | {C2 | product} |
| bool | ReduceInitialCardMarks | true | {C2 | product} |
| bool | ReduceSignalUsage | false | {product} | |
| intx | RefDiscoveryPolicy | 0 | {product} | |
| bool | ReflectionWrapResolutionErrors | true | {product} | |
| bool | RegisterFinalizersAtInit | true | {product} | |
| bool | RelaxAccessControlCheck | false | {product} | |
| ccstr | ReplayDataFile | {product} | ||
| bool | RequireSharedSpaces | false | {product} | |
| uintx | ReservedCodeCacheSize | {pd | product} | |
| bool | ResizeOldPLAB | true | {product} | |
| bool | ResizePLAB | true | {product} | |
| bool | ResizeTLAB | true | {pd | product} |
| bool | RestoreMXCSROnJNICalls | false | {product} | |
| bool | RestrictContended | true | {product} | |
| bool | RewriteBytecodes | true | {pd | product} |
| bool | RewriteFrequentPairs | true | {pd | product} |
| intx | SafepointPollOffset | 256 | {C1 | pd |
| intx | SafepointSpinBeforeYield | 2000 | {product} | |
| bool | SafepointTimeout | false | {product} | |
| intx | SafepointTimeoutDelay | 10000 | {product} | |
| bool | ScavengeBeforeFullGC | true | {product} | |
| intx | SelfDestructTimer | 0 | {product} | |
| uintx | SharedBaseAddress | {product} | ||
| ccstr | SharedClassListFile | {product} | ||
| uintx | SharedMiscCodeSize | {product} | ||
| uintx | SharedMiscDataSize | {product} | ||
| uintx | SharedReadOnlySize | {product} | ||
| uintx | SharedReadWriteSize | {product} | ||
| bool | ShowMessageBoxOnError | false | {product} | |
| intx | SoftRefLRUPolicyMSPerMB | 1000 | {product} | |
| bool | SpecialEncodeISOArray | true | {C2 | product} |
| bool | SplitIfBlocks | true | {C2 | product} |
| intx | StackRedPages | 1 | {pd | product} |
| intx | StackShadowPages | 20 | {pd | product} |
| bool | StackTraceInThrowable | true | {product} | |
| intx | StackYellowPages | 2 | {pd | product} |
| bool | StartAttachListener | false | {product} | |
| intx | StarvationMonitorInterval | 200 | {product} | |
| bool | StressLdcRewrite | false | {product} | |
| uintx | StringDeduplicationAgeThreshold | 3 | {product} | |
| uintx | StringTableSize | 60013 | {product} | |
| bool | SuppressFatalErrorMessage | false | {product} | |
| uintx | SurvivorPadding | 3 | {product} | |
| uintx | SurvivorRatio | 8 | {product} | |
| intx | SuspendRetryCount | 50 | {product} | |
| intx | SuspendRetryDelay | 5 | {product} | |
| intx | SyncFlags | 0 | {product} | |
| ccstr | SyncKnobs | {product} | ||
| intx | SyncVerbose | 0 | {product} | |
| uintx | TLABAllocationWeight | 35 | {product} | |
| uintx | TLABRefillWasteFraction | 64 | {product} | |
| uintx | TLABSize | 0 | {product} | |
| bool | TLABStats | true | {product} | |
| uintx | TLABWasteIncrement | 4 | {product} | |
| uintx | TLABWasteTargetPercent | 1 | {product} | |
| uintx | TargetPLABWastePct | 10 | {product} | |
| uintx | TargetSurvivorRatio | 50 | {product} | |
| uintx | TenuredGenerationSizeIncrement | 20 | {product} | |
| uintx | TenuredGenerationSizeSupplement | 80 | {product} | |
| uintx | TenuredGenerationSizeSupplementDecay | 2 | {product} | |
| intx | ThreadPriorityPolicy | 0 | {product} | |
| bool | ThreadPriorityVerbose | false | {product} | |
| uintx | ThreadSafetyMargin | {product} | ||
| intx | ThreadStackSize | 1024 | {pd | product} |
| uintx | ThresholdTolerance | 10 | {product} | |
| intx | Tier0BackedgeNotifyFreqLog | 10 | {product} | |
| intx | Tier0InvokeNotifyFreqLog | 7 | {product} | |
| intx | Tier0ProfilingStartPercentage | 200 | {product} | |
| intx | Tier23InlineeNotifyFreqLog | 20 | {product} | |
| intx | Tier2BackEdgeThreshold | 0 | {product} | |
| intx | Tier2BackedgeNotifyFreqLog | 14 | {product} | |
| intx | Tier2CompileThreshold | 0 | {product} | |
| intx | Tier2InvokeNotifyFreqLog | 11 | {product} | |
| intx | Tier3BackEdgeThreshold | 60000 | {product} | |
| intx | Tier3BackedgeNotifyFreqLog | 13 | {product} | |
| intx | Tier3CompileThreshold | 2000 | {product} | |
| intx | Tier3DelayOff | 2 | {product} | |
| intx | Tier3DelayOn | 5 | {product} | |
| intx | Tier3InvocationThreshold | 200 | {product} | |
| intx | Tier3InvokeNotifyFreqLog | 10 | {product} | |
| intx | Tier3LoadFeedback | 5 | {product} | |
| intx | Tier3MinInvocationThreshold | 100 | {product} | |
| intx | Tier4BackEdgeThreshold | 40000 | {product} | |
| intx | Tier4CompileThreshold | 15000 | {product} | |
| intx | Tier4InvocationThreshold | 5000 | {product} | |
| intx | Tier4LoadFeedback | 3 | {product} | |
| intx | Tier4MinInvocationThreshold | 600 | {product} | |
| bool | TieredCompilation | true | {pd | product} |
| intx | TieredCompileTaskTimeout | 50 | {product} | |
| intx | TieredRateUpdateMaxTime | 25 | {product} | |
| intx | TieredRateUpdateMinTime | 1 | {product} | |
| intx | TieredStopAtLevel | 4 | {product} | |
| bool | TimeLinearScan | false | {C1 | product} |
| bool | TraceBiasedLocking | false | {product} | |
| bool | TraceClassLoading | false | {product | rw} |
| bool | TraceClassLoadingPreorder | false | {product} | |
| bool | TraceClassPaths | false | {product} | |
| bool | TraceClassResolution | false | {product} | |
| bool | TraceClassUnloading | false | {product | rw} |
| bool | TraceDynamicGCThreads | false | {product} | |
| bool | TraceGen0Time | false | {product} | |
| bool | TraceGen1Time | false | {product} | |
| ccstr | TraceJVMTI | {product} | ||
| bool | TraceLoaderConstraints | false | {product | rw} |
| bool | TraceMetadataHumongousAllocation | false | {product} | |
| bool | TraceMonitorInflation | false | {product} | |
| bool | TraceParallelOldGCTasks | false | {product} | |
| intx | TraceRedefineClasses | 0 | {product} | |
| bool | TraceSafepointCleanupTime | false | {product} | |
| bool | TraceSharedLookupCache | false | {product} | |
| bool | TraceSuspendWaitFailures | false | {product} | |
| intx | TrackedInitializationLimit | 50 | {C2 | product} |
| bool | TransmitErrorReport | false | {product} | |
| bool | TrapBasedNullChecks | false | {pd | product} |
| bool | TrapBasedRangeChecks | false | {C2 | pd |
| intx | TypeProfileArgsLimit | 2 | {product} | |
| uintx | TypeProfileLevel | 111 | {pd | product} |
| intx | TypeProfileMajorReceiverPercent | 90 | {C2 | product} |
| intx | TypeProfileParmsLimit | 2 | {product} | |
| intx | TypeProfileWidth | 2 | {product} | |
| intx | UnguardOnExecutionViolation | 0 | {product} | |
| bool | UnlinkSymbolsALot | false | {product} | |
| bool | Use486InstrsOnly | false | {ARCH | product} |
| bool | UseAES | false | {product} | |
| bool | UseAESIntrinsics | false | {product} | |
| intx | UseAVX | 99 | {ARCH | product} |
| bool | UseAdaptiveGCBoundary | false | {product} | |
| bool | UseAdaptiveGenerationSizePolicyAtMajorCollection | true | {product} | |
| bool | UseAdaptiveGenerationSizePolicyAtMinorCollection | true | {product} | |
| bool | UseAdaptiveNUMAChunkSizing | true | {product} | |
| bool | UseAdaptiveSizeDecayMajorGCCost | true | {product} | |
| bool | UseAdaptiveSizePolicy | true | {product} | |
| bool | UseAdaptiveSizePolicyFootprintGoal | true | {product} | |
| bool | UseAdaptiveSizePolicyWithSystemGC | false | {product} | |
| bool | UseAddressNop | false | {ARCH | product} |
| bool | UseAltSigs | false | {product} | |
| bool | UseAutoGCSelectPolicy | false | {product} | |
| bool | UseBMI1Instructions | false | {ARCH | product} |
| bool | UseBMI2Instructions | false | {ARCH | product} |
| bool | UseBiasedLocking | true | {product} | |
| bool | UseBimorphicInlining | true | {C2 | product} |
| bool | UseBoundThreads | true | {product} | |
| bool | UseCLMUL | false | {ARCH | product} |
| bool | UseCMSBestFit | true | {product} | |
| bool | UseCMSCollectionPassing | true | {product} | |
| bool | UseCMSCompactAtFullCollection | true | {product} | |
| bool | UseCMSInitiatingOccupancyOnly | false | {product} | |
| bool | UseCRC32Intrinsics | false | {product} | |
| bool | UseCodeCacheFlushing | true | {product} | |
| bool | UseCompiler | true | {product} | |
| bool | UseCompilerSafepoints | true | {product} | |
| bool | UseCompressedClassPointers | false | {lp64_product} | |
| bool | UseCompressedOops | false | {lp64_product} | |
| bool | UseConcMarkSweepGC | false | {product} | |
| bool | UseCondCardMark | false | {C2 | product} |
| bool | UseContainerSupport | true | {product} | |
| bool | UseCountLeadingZerosInstruction | false | {ARCH | product} |
| bool | UseCountTrailingZerosInstruction | false | {ARCH | product} |
| bool | UseCountedLoopSafepoints | false | {C2 | product} |
| bool | UseCounterDecay | true | {product} | |
| bool | UseDivMod | true | {C2 | product} |
| bool | UseDynamicNumberOfGCThreads | false | {product} | |
| bool | UseFPUForSpilling | false | {C2 | product} |
| bool | UseFastAccessorMethods | true | {product} | |
| bool | UseFastEmptyMethods | true | {product} | |
| bool | UseFastJNIAccessors | true | {product} | |
| bool | UseFastStosb | false | {ARCH | product} |
| bool | UseG1GC | false | {product} | |
| bool | UseGCLogFileRotation | false | {product} | |
| bool | UseGCOverheadLimit | true | {product} | |
| bool | UseGCTaskAffinity | false | {product} | |
| bool | UseGHASHIntrinsics | false | {product} | |
| bool | UseHeavyMonitors | false | {product} | |
| bool | UseHugeTLBFS | false | {product} | |
| bool | UseInlineCaches | true | {product} | |
| bool | UseInterpreter | true | {product} | |
| bool | UseJumpTables | true | {C2 | product} |
| bool | UseLWPSynchronization | true | {product} | |
| bool | UseLargePages | false | {pd | product} |
| bool | UseLargePagesInMetaspace | false | {product} | |
| bool | UseLargePagesIndividualAllocation | false | {pd | product} |
| bool | UseLinuxPosixThreadCPUClocks | true | {product} | |
| bool | UseLockedTracing | false | {product} | |
| bool | UseLoopCounter | true | {product} | |
| bool | UseLoopInvariantCodeMotion | true | {C1 | product} |
| bool | UseLoopPredicate | true | {C2 | product} |
| bool | UseMathExactIntrinsics | true | {C2 | product} |
| bool | UseMaximumCompactionOnSystemGC | true | {product} | |
| bool | UseMembar | false | {pd | product} |
| bool | UseMontgomeryMultiplyIntrinsic | false | {C2 | product} |
| bool | UseMontgomerySquareIntrinsic | false | {C2 | product} |
| bool | UseMulAddIntrinsic | false | {C2 | product} |
| bool | UseMultiplyToLenIntrinsic | false | {C2 | product} |
| bool | UseNUMA | false | {product} | |
| bool | UseNUMAInterleaving | false | {product} | |
| bool | UseNewLongLShift | false | {ARCH | product} |
| bool | UseOSErrorReporting | false | {pd | product} |
| bool | UseOldInlining | true | {C2 | product} |
| bool | UseOnStackReplacement | true | {pd | product} |
| bool | UseOnlyInlinedBimorphic | true | {C2 | product} |
| bool | UseOprofile | false | {product} | |
| bool | UseOptoBiasInlining | true | {C2 | product} |
| bool | UsePSAdaptiveSurvivorSizePolicy | true | {product} | |
| bool | UseParNewGC | false | {product} | |
| bool | UseParallelGC | false | {product} | |
| bool | UseParallelOldGC | false | {product} | |
| bool | UsePerfData | true | {product} | |
| bool | UsePopCountInstruction | false | {product} | |
| bool | UseRDPCForConstantTableBase | false | {C2 | product} |
| bool | UseRTMDeopt | false | {ARCH | product} |
| bool | UseRTMLocking | false | {ARCH | product} |
| bool | UseSHA | false | {product} | |
| bool | UseSHA1Intrinsics | false | {product} | |
| bool | UseSHA256Intrinsics | false | {product} | |
| bool | UseSHA512Intrinsics | false | {product} | |
| bool | UseSHM | false | {product} | |
| intx | UseSSE | 99 | {product} | |
| bool | UseSSE42Intrinsics | false | {product} | |
| bool | UseSerialGC | false | {product} | |
| bool | UseSharedSpaces | true | {product} | |
| bool | UseSignalChaining | true | {product} | |
| bool | UseSquareToLenIntrinsic | false | {C2 | product} |
| bool | UseStoreImmI16 | true | {ARCH | product} |
| bool | UseStringDeduplication | false | {product} | |
| bool | UseSuperWord | true | {C2 | product} |
| bool | UseTLAB | true | {pd | product} |
| bool | UseThreadPriorities | true | {pd | product} |
| bool | UseTransparentHugePages | false | {product} | |
| bool | UseTypeProfile | true | {product} | |
| bool | UseTypeSpeculation | true | {C2 | product} |
| bool | UseUnalignedLoadStores | false | {ARCH | product} |
| bool | UseVMInterruptibleIO | false | {product} | |
| bool | UseXMMForArrayCopy | false | {product} | |
| bool | UseXmmI2D | false | {ARCH | product} |
| bool | UseXmmI2F | false | {ARCH | product} |
| bool | UseXmmLoadAndClearUpper | true | {ARCH | product} |
| bool | UseXmmRegToRegMoveAll | false | {ARCH | product} |
| bool | VMThreadHintNoPreempt | false | {product} | |
| intx | VMThreadPriority | -1 | {product} | |
| intx | VMThreadStackSize | 1024 | {pd | product} |
| intx | ValueMapInitialSize | 11 | {C1 | product} |
| intx | ValueMapMaxLoopSize | 8 | {C1 | product} |
| intx | ValueSearchLimit | 1000 | {C2 | product} |
| bool | VerifyMergedCPBytecodes | true | {product} | |
| bool | VerifySharedSpaces | false | {product} | |
| intx | WorkAroundNPTLTimedWaitHang | 1 | {product} | |
| uintx | YoungGenerationSizeIncrement | 20 | {product} | |
| uintx | YoungGenerationSizeSupplement | 80 | {product} | |
| uintx | YoungGenerationSizeSupplementDecay | 8 | {product} | |
| uintx | YoungPLABSize | 4096 | {product} | |
| bool | ZeroTLAB | false | {product} | |
| intx | hashCode | 5 | {product} |
到此这篇关于Java启动参数(-, -X, -XX参数)的使用的文章就介绍到这了,更多相关Java启动参数 内容请搜索本网站以前的文章或继续浏览下面的相关文章希望大家以后多多支持本网站！
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