jvm 参数大全

需要打印指定的参数 可以

java -XX:+PrintFlagsFinal -version|grep 参数名称

1 标准参数
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; 
通过命令 java即可查看 

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用法: java [-options] class [args...]
           (执行类)
   或  java [-options] -jar jarfile [args...]
           (执行 jar 文件)
其中选项包括:
    -d32      使用 32 位数据模型 (如果可用)
    -d64      使用 64 位数据模型 (如果可用)
    -server      选择 "server" VM
                  默认 VM 是 server,
                  因为您是在服务器类计算机上运行。


    -cp <目录和 zip/jar 文件的类搜索路径>
    -classpath <目录和 zip/jar 文件的类搜索路径>
                  用 : 分隔的目录, JAR 档案
                  和 ZIP 档案列表, 用于搜索类文件。
    -D<名称>=<值>
                  设置系统属性
    -verbose:[class|gc|jni]
                  启用详细输出
    -version      输出产品版本并退出
    -version:<值>
                  警告: 此功能已过时, 将在
                  未来发行版中删除。
                  需要指定的版本才能运行
    -showversion  输出产品版本并继续
    -jre-restrict-search | -no-jre-restrict-search
                  警告: 此功能已过时, 将在
                  未来发行版中删除。
                  在版本搜索中包括/排除用户专用 JRE
    -? -help      输出此帮助消息
    -X            输出非标准选项的帮助
    -ea[:<packagename>...|:<classname>]
    -enableassertions[:<packagename>...|:<classname>]
                  按指定的粒度启用断言
    -da[:<packagename>...|:<classname>]
    -disableassertions[:<packagename>...|:<classname>]
                  禁用具有指定粒度的断言
    -esa | -enablesystemassertions
                  启用系统断言
    -dsa | -disablesystemassertions
                  禁用系统断言
    -agentlib:<libname>[=<选项>]
                  加载本机代理库 <libname>, 例如 -agentlib:hprof
                  另请参阅 -agentlib:jdwp=help 和 -agentlib:hprof=help
    -agentpath:<pathname>[=<选项>]
                  按完整路径名加载本机代理库
    -javaagent:<jarpath>[=<选项>]
                  加载 Java 编程语言代理, 请参阅 java.lang.instrument
    -splash:<imagepath>
                  使用指定的图像显示启动屏幕
有关详细信息, 请参阅 http://www.oracle.com/technetwork/java/javase/documentation/index.html。
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2 非标准参数(-X)
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; 
通过命令 java -X,如下

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-Xmixed           混合模式执行 (默认)
    -Xint             仅解释模式执行
    -Xbootclasspath:<用 : 分隔的目录和 zip/jar 文件>
                      设置搜索路径以引导类和资源
    -Xbootclasspath/a:<用 : 分隔的目录和 zip/jar 文件>
                      附加在引导类路径末尾
    -Xbootclasspath/p:<用 : 分隔的目录和 zip/jar 文件>
                      置于引导类路径之前
    -Xdiag            显示附加诊断消息
    -Xnoclassgc       禁用类垃圾收集
    -Xincgc           启用增量垃圾收集
    -Xloggc:<file>    将 GC 状态记录在文件中 (带时间戳)
    -Xbatch           禁用后台编译
    -Xms<size>        设置初始 Java 堆大小
    -Xmx<size>        设置最大 Java 堆大小
    -Xss<size>        设置 Java 线程堆栈大小
    -Xprof            输出 cpu 配置文件数据
    -Xfuture          启用最严格的检查, 预期将来的默认值
    -Xrs              减少 Java/VM 对操作系统信号的使用 (请参阅文档)
    -Xcheck:jni       对 JNI 函数执行其他检查
    -Xshare:off       不尝试使用共享类数据
    -Xshare:auto      在可能的情况下使用共享类数据 (默认)
    -Xshare:on        要求使用共享类数据, 否则将失败。
    -XshowSettings    显示所有设置并继续
    -XshowSettings:all
                      显示所有设置并继续
    -XshowSettings:vm 显示所有与 vm 相关的设置并继续
    -XshowSettings:properties
                      显示所有属性设置并继续
    -XshowSettings:locale
                      显示所有与区域设置相关的设置并继续

-X 选项是非标准选项, 如有更改, 恕不另行通知。
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3 非Stable参数(-XX)
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(但是,这些参数往往是非常有用的). 通过命令java -XX:+PrintFlagsFinal





本章节主要用于补齐之前GC篇章以及JVM运行时数据区的一些JVM参数,更多的作用也可以看作是JVM的参数列表大全。对于开发者而言,能够控制JVM的部分也就只有启动参数了,同时,对于JVM的性能调优而言,JVM的参数也是基础。

“本篇主要用于记录一些常用的JVM参数,方便之后使用时快速查找”。
在JVM的所有参数中,总体会被分为几种类型:标准参数(Standard)、非标准参数(Non-Standard)、高级运行时选项以及不建议使用(可能会被遗弃的)四大类,其中:

标准参数:开头直接为参数名,例如:-server、-client等。
非标准参数: -X开头,例如: -Xdebug、-XBatch等。
高级选项:-XX:开头,例如:-XX:+UseG1GC、-XX:-UseG1GC等,其中+号代表开启,-号代表关闭。
上述简单介绍清楚JVM参数中,不同开头的参数代表的含义后,接下来开始罗列JVM中的参数列表。

当然,也可以根据其他维度定义为行为参数、性能调优参数、调试参数这类的。
PS:本章是将一些常用的JVM、Linux参数写成个参数表,以便于使用时方便查阅。
一、JVM运行时数据区参数列表
虚拟机的运行时数据区中,堆空间无疑是最重要的,除堆空间之外,虚拟机栈/本地方法栈(HotSpot中二合一)、元数据空间、本地内存等区域也有对应的参数,接下来依次列出。

1.1、通用参数
-client:以客户端模式启动JVM。
-server:以服务器模式启动JVM。
-agentlib:装载本地lib库。
-agentpath: 按全路径装载本地库。
-classpath:声明jvm搜索目录名、jar、zip文档名,之间用分号;分隔。
-D property=value:设置系统[属性名/值]对。
应用程序运行时可通过System.getProperty("property")获取。


-enableassertions:设置JVM是否启动断言机制,默认关闭(1.4开始支持的)。
后续跟-esa代表开启,跟-dsa代表关闭。
-jar:指定以jar包的形式执行一个应用程序。
-javaagent:jarpath:指定JVM启动时装入java语言设备代理。
-verbose:这个参数比较有趣,可以用于输出JVM一些信息,如下:
结尾跟:class:输出JVM类加载相关信息,JVM找不到类时可以用于排查。
结尾跟:gc:输出每次GC相关的简略信息。
结尾跟:jni:输出native方法调用的相关状况,可以用于诊断jni调用错误。


-version:输出当前机器Java环境版本信息。
-version:release:指定当前机器以某个特定的版本执行。
-version:"1.5.0_04 1.5*&1.5.1_02+":以1.5或比1.5更高的版本执行。
-help:输出Java所有标准参数及其描述。
-X: 输出非标准的参数列表及其描述。
-Xint:设置JVM以纯解释器模式执行。
-Xcomp:完全采用即时编译器模式执行程序。
-Xmixed:采用解释器+JIT即时编译器的混合模式共同执行。
-Xbatch:禁止JVM后台编译,将编译过程放到前台任务执行。
-Xbootclasspath:让Bootstrap从指定目录下加载库、jar、zip包。
结尾跟/a:path:将指定路径的全部文件追加到默认bootstrap路径中。
结尾跟/p:path:让JVM优先于bootstrap默认路径加载指定路径的文件。


-Xcheck:jni: 对JNI函数进行附加检查,校验传递给JNI函数参数的合法性。
-Xfuture:让JVM对类文件执行严格模式检查(默认不使用)。
-Xnoclassgc:关闭针对class的gc(开启后类不会被卸载/会导致OOM)。
-Xincgc: 开启增量gc,会减少停顿,但会导致吞吐量下降。
-Xprof:跟踪正运行的程序,适合于开发环境调试。
-Xrs:减小JVM对操做系统信号(signals)的使用。
-XX:DisableExplicitGC:禁止程序内部调用System.gc()触发GC。
-XX:MaxFDLimit:文件描述符的最大数量限制。
-XX:UseThreadPriorities:启用本地线程优先级。
-XX:UnlockExperimentalVMOptions:开启未知参数识别机制。
-XX:PrintFlagsInitial:输出当前程序的参数默认值。
1.2、堆空间常用参数
-Xms:JVM启动时堆空间大小。
-Xmx:堆空间的最大大小。
-XX:NewSize=n/-Xmn:分配年轻代的空间大小。
-XX:NewRatio=n:设置年轻代和年老代的比值。
-XX:SurvivorRatio:设置新生代中Eden区和Survivor区的大小比值。
- XX:TargetsurvivorRatio:设置Survivor区的目标使用率,默认为50%。
-XX:MaxTenuringThreshold:设置年老代对象的晋升年龄。
-XX:PretenureSizeThreshold:指定直接进入年老代大对象的阈值。
-XX:MaxHeapFreeRatio:GC后允许堆中空闲内存占的最大比例。
-XX:MinHeapFreeRatio:GC后允许堆中空闲内存占的最小比例。
-XX:MaxNewSize:新生代单个对象允许存在的最大值。
-XX:MaxPermSize:年老代单个对象允许存在的最大值。
-XX:UseLargePages:开启大页面内存技术(大内存下使用)。
-XX:LargePageSizeInBytes:设置Java堆空间的大页面尺寸。
-XX:HandlePromotionFailire:是否开启空间分代担保机制。
-XX:HeapDumpOnOutOfMemoryError:堆空间首次发生OOM时输出dump日志。
-XX:HeapDumpPath:和上面的参数配套使用,指定输出的位置。
-XX:HeapDumpBeforeFullGC:在FullGC前dump。
-XX:HeapDumpAfterFullGC:在FullGC后dump。
-XX:OnOutOfMemoryError:当JVM首次发生OOM时,可以执行制定脚本。
-XX:+UseGCOverheadLimit:在抛出OOM前限制JVM耗费在GC上的时间比例。
-XX:UseAdaptiveSizePolicy:是否开启自适应堆比例调整机制(并行GC器)。
-XX:MaxGCPauseMillis:设置每次新生代垃圾回收的期望最大停顿时间。
-XX:UseCompressedOops:是否开启对象指针压缩机制。
-XX:CompressedClassSpaceSize:是否开启类指针压缩机制。
-XX:UseTLAB:是否开启TLAB分配机制。
-XX:TLABWasteTargetPercent:指定TLAB与整个Eden区的占比。
-XX:TLABSize:显示指定TLAB区域的大小。
-XX:ResizeTLAB:是否开启JVM自适应的TLAB大小自调整机制。
-XX:BiasedLockingStartupDelay:设置sync匿名偏向锁的延迟启动时间。
-XX:PreBlockSpin:指定Sync自旋锁次数(1.6被弃用,引入自适应自旋)。
-XX:PermSize:设置非堆空间初始大小(1.7后被弃用,改为元空间)。
-XX:MaxPermSize:设置非堆空间最大大小(1.7后被弃用,改为元空间)。
-XX:AlwaysPreTouch:是否开启物理内存分配替换虚拟内存分配。
1.3、Java栈参数


-Xss:设置虚拟机栈的默认大小。
-XX:ThreadStackSize:设置线程栈默认大小。
-XX:+DoEscapeAnalysis:是否开启逃逸分析机制。
-XX:PrintEscapeAnaysis:输出逃逸分析信息。
-XX:EliminateAllocations:是否开启标量替换机制。
-XX:EliminateLocks:是否开启同步消除机制。
-XX:PrintEliminateAllocations:输出标量替换信息。
1.4、元数据空间参数
-XX:MetaspaceSize:指定元数据空间的初始大小。
-XX:MaxMetaspaceSize:指定元数据空间的最大大小。
-XX:MinMetaspaceFreeRatio:FullGC后,允许元空间空闲内存的最小比例。
-XX:MaxMetaspaceFreeRatio:FullGC后,允许元空间空闲内存的最大比例。
-XX:MinMetaspaceExpansion:设置元空间中允许存在的单个数据的最小大小。
-XX:MaxMetaspaceExpansion:设置元空间中允许存在的单个数据的最大大小。
-XX:CompileThreshold:方法调用计数器编译触发阈值设置。
-XX:ReservedCodeCacheSize:热点代码缓存区的最大大小。
-XX:InitialCodeCacheSize:设置热点代码缓存区的初始大小。
-XX:+UseCodeCacheFlushing:热点代码空间已满时,取消部分冷代码的编译。
-XX:UseCounterDecay:是否开启热度衰减机制。
-XX:CounterHalfLifeTime:调整半衰周期的时间,单位为秒。
-XX:PrintCompilation:当方法被编译时输出相关信息。
XX:BackgroundCompilation:禁止JVM后台编译,将编译任务在前台执行。
-XX:CITime:JVM关闭时,输出各种编译的统计信息。
-XX:TraceClassLoading:跟踪类加载信息。
-XX:TraceClassLoadingPreorder:跟踪所有被使用的类加载信息。
-XX:TraceClassUnloading:跟踪类卸载信息。
-XX:TraceLoaderConstraints:跟踪类加载器相关信息。
-XX:TraceClassResolution:跟踪常量池信息。
1.5、直接内存参数
-XX:DirectMemorySize:设置直接内存的初始空间值(不设置默认与Xmx参数值相同)。
-XX:MaxDirectMemorySize:设置直接内存的最大空间值。
1.6、调试通用参数
-XX:+PrintVMOptions:输出当前运行程序的显式启动参数。
-XX:+PrintCommandLineFlags:输出传递给虚拟机的显式和隐式参数。
-XX:+PrintFlagsInitial:查看所有的参数的默认初始值。
-XX:+PrintFlagsFinal:输出所有的系统参数的最终值。
-XX:PrintTLAB:输出TLAB分配相关的信息
-XX:CITime:输出JIT即时编译的耗时。
-XX:ErrorFile:保存错误日志或者数据到文件中。
-XX:OnError=”;”:出现致命错误时执行自定义的指定脚本。
1.7、GC调试通用参数
-XX:+PrintGC/-verbose:gc:输出GC的简略日志。
-XX:+PrintGCDetails:输出GC发生时的详细日志。
-XX:+PrintGCTimeStamps:输出GC发生的时间。
-XX:+PrintGCApplicationConcurrentTime:输出应用程序的执行时间。
-XX:+PrintGCApplicationStoppedTime:输出应用由于GC而产生的停顿时间。
-Xloggc:将输出的GC日志转储到指定目录中。
-XX:+PrintReferenceGC:跟踪并输出软/弱/虚引用和Finallize队列信息。
-XX:+PrintHeapAtGC:每次GC前后打印堆信息。
-XX:PrintGCCause:输出导致本次GC触发的原因。
二、新生代垃圾收集器参数列表
上述阶段中,将一些JVM通用参数、JVM运行时数据区参数以及部分调试参数进行了简单整理,接下来看看GC相关的一些参数。

2.1、Serial收集器参数
-XX:UseSerialGC:是否启用Serial作为新生代收集器。
2.2、ParNew收集器参数
-XX:UseParNewGC:是否启用ParNew作为新生代收集器。
2.3、ParallelScavenge收集器参数
-XX:UseParallelGC:是否启用ParallelScavenge作为新生代收集器。
-XX:MaxGCPauseMillis:设置GC发生时允许的最大停顿时间。
-XX:GCTimeRatio:精准控制GC发生时的吞吐量占比。
-XX:UseAdaptiveSizePolicy:是否开启JVM自适应的GC调节策略。
-XX:ParallelGCThreads:指定GC工作时的并行线程数(默认为CPU核数)。
三、年老代垃圾收集器参数列表
3.1、SerialOld收集器参数
-XX:UseSerialGC:是否启用SerialOld作为年老代收集器。
3.2、ParallelOld收集器参数
-XX:UseParallelOldGC:是否启用ParallelOld作为年老代收集器。
3.3、CMS收集器参数

-XX:UseConcMarkSweepGC:是否启用CMS作为年老代收集器。

-XX:UseCMSInitiatingoccupancyonlyn:指定触发CMS回收的阈值。
-XX:CMSInitIatingOccupancyFaction:指定空间占用达到多少比例时触发MSC工作。
-XX:+UseCMSInitiatingOccupancyOnly:强制设定的回收阈值,达到即触发GC。
-XX:UseCMSCompactAtFullCollection:内存碎片化严重时是否开启MSC工作。
-XX:CMSFullGCsBeforeCompaction:设置间隔多少次FullGC触发一次MSC工作,默认0。
-XX:ParallelCMSThreads:指定CMS执行GC工作时的并发线程数。
-XX:CMSClassUnloadingEnabled:是否开启类元数据卸载(回收)机制。
-XX:CMSInitiatingPermOccupancyFraction:指定元空间GC的触发比例。
-XX:GCTimeRatio:指定GC停顿时间与用户线程工作时间的占比。
-XX:MaxGCPauseMillis:指定一次GC允许发生的最大停顿时间。
-XX:CMSIncrementalMode:是否启用增量回收模式(1.8中被废弃,1.9中移除)。
-XX:CMSScavengeBeforeRemark:是否在重新标记阶段前触发一次新生代GC。
-XX:CMSMaxAbortablePrecleanTime:默认为5s,表示AbortablePreclean阶段的最大时间。
-XX:CMSScheduleRemarkEdenPenetration:指定Eden区使用比例超过N%时,就结束预清理阶段进入remark阶段。
-XX:CMSParallellnitialMarkEnabled:在初始阶段是否采用多线程执行。
-XX:CMSParallelRemarkEnabled:在重新标记阶段是否采用多线程执行。
-XX:CMSClassUnloadingEnabled:在正常GC阶段中清除过期的class数据,不等到FullGC时再清除。
四、整堆分区垃圾收集器参数列表
4.1、G1收集器参数


-XX:+UseG1GC:让JVM使用G1收集器。
-XX:ConcGCThreads:指定并发GC工作阶段的并发线程数量。
-XX:ParallelGCThreads:指定STW阶段,GC工作的并行线程数。
-XX:MaxGCPauseMillis:期望的目标停顿时间(默认200ms)。
-XX:GCPauseIntervalMillis:GC的间隔时间。
-XX:G1HeapRegionSize:指定单个分区大小(1~32MB,且必须是2的N次幂)。
-XX:G1NewSizePercent:新生代初始空间占比(默认整堆的5%)。
-XX:G1MaxNewSizePercent:新生代最大空间占比。
GCTimeRatio:GC停顿的时间占比(G1会根据此值调整堆空间)。
-XX:TargetSurvivorRatio:G1中空间分配担保的触发比例。
当Survivor空间达到填充容量阈值时(默认50%),将对象转入年老代。


-XX:MaxTenuringThreshold:新生代空间对象的晋升年龄阈值(默认15)。
-XX:InitiatingHeapOccupancyPercent:年老代空间触发MixedGC的阈值。
-XX:GCPauseIntervalMillis:设置停顿间隔时间(作用于G1-回收阶段)。
-XX:ExplicitGCInvokesconcurrent:对显示调用触发的GC是否启用并发回收。
-XX:G1ReservePercent:预留年老代的空闲Region数,为分代担保做准备,默认10。
默认为整堆45%,年老代空间使用比例达到该阈值时触发混合GC。
-XX:G1MixedGCLiveThresholdPercent:单个Region触发GC的垃圾占比阈值。
默认为85%,单个分区中垃圾对象达到该阈值时才可被选作目标区域回收。


-XX:G1MixedGCCountTarget:指定回收阶段时,分为几次筛选回收。
默认8次,在G1最后的筛选回收阶段可以回收一段时间,然后暂停回收,恢复系统运行,过一会儿再回收,这样做可以让系统不至于单次停顿时间过长。
-XX:G1HeapWastePercent:GC回收停止的空闲Region阈值(默认5%)。
回收阶段是基于复制算法来完成的,回收一个分区时会将该区内的所有存活对象移入到另外一个区域,然后统一清除该分区,这样最终就会出现一个空的Region,而当空闲的Region数量达到5%时,G1会结束本次MixedGC。


-XX:G1OldCSetRegionThresholdPercent:每轮MixedGC回收分区的最大比例,默认10%。
-XX:SoftRefLRUPolicyMSPerMB:指定每兆空间中软引用的存活时间,默认为1000ms。
-XX:G1UseAdaptiveIHOP:是否开启G1-IHOP分析预测机制(默认开启)。
-XX:ParallelRefProcEnabled:是否启用并发引用处理机制(默认关闭)。
-XX:G1RSetUpdatingPauseTimePercent:降低处理Rset记忆集时的停顿时间。
-XX:G1RSetRegionEntries:降低RSet粗化的程度。
-XX:G1SummarizeRSetStatsPeriod:诊断参数,可以查看Rset的周期频率报告。
4.2、ZGC收集器参数
-XX:UnlockExperimentalVMOptions:是否解锁JVM隐藏的额外参数(实验参数)。
-XX:UseZGC:是否启用ZGC作为JVM整堆的垃圾收集器。
-XX:ZCollectionInterval:定期触发一次GC(默认不开启,单位:秒)。
-XX:ZProactive:设置ZGC主动触发GC的阈值(默认开启)。
4.3、ShenandoahGC收集器参数
-XX:UseShenandoahGC:是否启用ShenandoahGC作为JVM整堆的垃圾收集器。
其实整堆收集器中,除开G1之外,其他两款整堆收集器,因为没有做分代实现,所以能够暴露给外部操作的JVM参数其实也并不会太多,大概也只能调调线程数、内存大小、GC触发条件、GC频率这类的了。因为这些整堆收集器本身就能够很好的驾驭已分配的堆空间。




复制代码
[Global flags]
     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                  = 256                                 {product}
     intx AllocatePrefetchInstr                     = 3                                   {product}
     intx AllocatePrefetchLines                     = 3                                   {product}
     intx AllocatePrefetchStepSize                  = 64                                  {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                         = 100000                              {pd product}
     bool BackgroundCompilation                     = true                                {pd product}
    uintx BaseFootPrintEstimate                     = 268435456                           {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                          := 12                                  {product}
     bool CICompilerCountPerCPU                     = true                                {product}
     bool CITime                                    = false                               {product}
     bool CMSAbortSemantics                         = false                               {product}
    uintx CMSAbortablePrecleanMinWorkPerIteration   = 100                                 {product}
     intx CMSAbortablePrecleanWaitMillis            = 100                                 {manageable}
    uintx CMSBitMapYieldQuantum                     = 10485760                            {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                = 0.950000                            {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        = 2097152                             {product}
    uintx CMSScheduleRemarkSamplingRatio            = 5                                   {product}
   double CMSSmallCoalSurplusPercent                = 1.050000                            {product}
   double CMSSmallSplitSurplusPercent               = 1.100000                            {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                      = 67108864                            {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                 = 512000                              {product}
     bool CollectGen0First                          = false                               {product}
     bool CompactFields                             = true                                {product}
     intx CompilationPolicyChoice                   = 3                                   {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                  = 1073741824                          {product}
    uintx ConcGCThreads                             = 0                                   {product}
     intx ConditionalMoveLimit                      = 3                                   {C2 pd product}
     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          = 0.990000                            {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                        = 2147483648                          {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                       = 87241520                            {product}
     bool IgnoreEmptyClassPaths                     = false                               {product}
     bool IgnoreUnrecognizedVMOptions               = false                               {product}
    uintx IncreaseFirstTierCompileThresholdAt       = 50                                  {product}
     bool IncrementalInline                         = true                                {C2 product}
    uintx InitialBootClassLoaderMetaspaceSize       = 4194304                             {product}
    uintx InitialCodeCacheSize                      = 2555904                             {pd product}
    uintx InitialHeapSize                          := 526385152                           {product}
    uintx InitialRAMFraction                        = 64                                  {product}
   double InitialRAMPercentage                      = 1.562500                            {product}
    uintx InitialSurvivorRatio                      = 8                                   {product}
    uintx InitialTenuringThreshold                  = 7                                   {product}
    uintx InitiatingHeapOccupancyPercent            = 45                                  {product}
     bool Inline                                    = true                                {product}
    ccstr InlineDataFile                            =                                     {product}
     intx InlineSmallCode                           = 2000                                {pd product}
     bool InlineSynchronizedMethods                 = true                                {C1 product}
     bool InsertMemBarAfterArraycopy                = true                                {C2 product}
     intx InteriorEntryAlignment                    = 16                                  {C2 pd product}
     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 product}
    uintx LargePageHeapSizeThreshold                = 134217728                           {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 product}
     intx LoopUnrollMin                             = 4                                   {C2 product}
     bool LoopUnswitching                           = true                                {C2 product}
     bool ManagementServer                          = false                               {product}
    uintx MarkStackSize                             = 4194304                             {product}
    uintx MarkStackSizeMax                          = 536870912                           {product}
    uintx MarkSweepAlwaysCompactCount               = 4                                   {product}
    uintx MarkSweepDeadRatio                        = 1                                   {product}
     intx MaxBCEAEstimateLevel                      = 5                                   {product}
     intx MaxBCEAEstimateSize                       = 150                                 {product}
    uintx MaxDirectMemorySize                       = 0                                   {product}
     bool MaxFDLimit                                = true                                {product}
    uintx MaxGCMinorPauseMillis                     = 18446744073709551615                    {product}
    uintx MaxGCPauseMillis                          = 18446744073709551615                    {product}
    uintx MaxHeapFreeRatio                          = 100                                 {manageable}
    uintx MaxHeapSize                              := 8417968128                          {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                                = 11                                  {C2 product}
    uintx MaxMetaspaceExpansion                     = 5451776                             {product}
    uintx MaxMetaspaceFreeRatio                     = 70                                  {product}
    uintx MaxMetaspaceSize                          = 18446744073709547520                    {product}
    uintx MaxNewSize                               := 2805989376                          {product}
     intx MaxNodeLimit                              = 75000                               {C2 product}
 uint64_t MaxRAM                                    = 137438953472                        {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                             = 21807104                            {pd product}
     bool MethodFlushing                            = true                                {product}
    uintx MinHeapDeltaBytes                        := 524288                              {product}
    uintx MinHeapFreeRatio                          = 0                                   {manageable}
     intx MinInliningThreshold                      = 250                                 {product}
     intx MinJumpTableSize                          = 10                                  {C2 pd product}
    uintx MinMetaspaceExpansion                     = 339968                              {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                 = 2097152                             {product}
    uintx NUMAPageScanRate                          = 256                                 {product}
    uintx NUMASpaceResizeRate                       = 1073741824                          {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                                  := 175112192                           {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                                  := 351272960                           {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 product}
     intx OptoLoopAlignment                         = 16                                  {pd product}
     bool OptoScheduling                            = false                               {C2 pd product}
    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                         = 13                                  {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               = 576                                 {product}
     intx PrefetchFieldsAhead                       = 1                                   {product}
     intx PrefetchScanIntervalInBytes               = 576                                 {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                          := true                                {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                     = 251658240                           {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 product}
     intx SafepointSpinBeforeYield                  = 2000                                {product}
     bool SafepointTimeout                          = false                               {product}
     intx SafepointTimeoutDelay                     = 10000                               {product}
     bool ScavengeBeforeFullGC                      = true                                {product}
     intx SelfDestructTimer                         = 0                                   {product}
    uintx SharedBaseAddress                         = 34359738368                         {product}
    ccstr SharedClassListFile                       =                                     {product}
    uintx SharedMiscCodeSize                        = 122880                              {product}
    uintx SharedMiscDataSize                        = 4194304                             {product}
    uintx SharedReadOnlySize                        = 16777216                            {product}
    uintx SharedReadWriteSize                       = 16777216                            {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                        = 52428800                            {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 product}
     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                                    = true                                {product}
     bool UseAESIntrinsics                          = true                                {product}
     intx UseAVX                                    = 2                                   {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                             = true                                {ARCH product}
     bool UseAltSigs                                = false                               {product}
     bool UseAutoGCSelectPolicy                     = false                               {product}
     bool UseBMI1Instructions                       = true                                {ARCH product}
     bool UseBMI2Instructions                       = true                                {ARCH product}
     bool UseBiasedLocking                          = true                                {product}
     bool UseBimorphicInlining                      = true                                {C2 product}
     bool UseBoundThreads                           = true                                {product}
     bool UseCLMUL                                  = true                                {ARCH product}
     bool UseCMSBestFit                             = true                                {product}
     bool UseCMSCollectionPassing                   = true                                {product}
     bool UseCMSCompactAtFullCollection             = true                                {product}
     bool UseCMSInitiatingOccupancyOnly             = false                               {product}
     bool UseCRC32Intrinsics                        = true                                {product}
     bool UseCodeCacheFlushing                      = true                                {product}
     bool UseCompiler                               = true                                {product}
     bool UseCompilerSafepoints                     = true                                {product}
     bool UseCompressedClassPointers               := true                                {lp64_product}
     bool UseCompressedOops                        := true                                {lp64_product}
     bool UseConcMarkSweepGC                        = false                               {product}
     bool UseCondCardMark                           = false                               {C2 product}
     bool UseContainerSupport                       = true                                {product}
     bool UseCountLeadingZerosInstruction           = true                                {ARCH product}
     bool UseCountTrailingZerosInstruction          = true                                {ARCH product}
     bool UseCountedLoopSafepoints                  = false                               {C2 product}
     bool UseCounterDecay                           = true                                {product}
     bool UseDivMod                                 = true                                {C2 product}
     bool UseDynamicNumberOfGCThreads               = false                               {product}
     bool UseFPUForSpilling                         = true                                {C2 product}
     bool UseFastAccessorMethods                    = false                               {product}
     bool UseFastEmptyMethods                       = false                               {product}
     bool UseFastJNIAccessors                       = true                                {product}
     bool UseFastStosb                              = true                                {ARCH product}
     bool UseG1GC                                   = false                               {product}
     bool UseGCLogFileRotation                      = false                               {product}
     bool UseGCOverheadLimit                        = true                                {product}
     bool UseGCTaskAffinity                         = 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            = true                                {C2 product}
     bool UseMontgomerySquareIntrinsic              = true                                {C2 product}
     bool UseMulAddIntrinsic                        = true                                {C2 product}
     bool UseMultiplyToLenIntrinsic                 = true                                {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                            := true                                {product}
     bool UseParallelOldGC                          = true                                {product}
     bool UsePerfData                               = true                                {product}
     bool UsePopCountInstruction                    = true                                {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                                    = 4                                   {product}
     bool UseSSE42Intrinsics                        = true                                {product}
     bool UseSerialGC                               = false                               {product}
     bool UseSharedSpaces                           = false                               {product}
     bool UseSignalChaining                         = true                                {product}
     bool UseSquareToLenIntrinsic                   = true                                {C2 product}
     bool UseStoreImmI16                            = false                               {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                        = true                                {product}
     bool UseXmmI2D                                 = false                               {ARCH product}
     bool UseXmmI2F                                 = false                               {ARCH product}
     bool UseXmmLoadAndClearUpper                   = true                                {ARCH product}
     bool UseXmmRegToRegMoveAll                     = true                                {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}
posted @ 2022-10-11 17:16  方东信  阅读(144)  评论(0编辑  收藏  举报