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  • CMS jvm flags详解

     -XX:+PrintGCDetails

    -XX:+PrintGCTimeStamps

    -XX:+PrintGCApplicationConcurrentTime

    -XX:+PrintGCApplicationStoppedTime

    -Xloggc:/home/appSes/ses/oper/gc.log

    -XX:+DoEscapeAnalysis

    -XX:CMSFullGCsBeforeCompaction=2

    -XX:GCTimeRatio=19

    -XX:+UseCMSInitiatingOccupancyOnly

    -XX:CMSInitiatingOccupancyFraction=65

    -XX:+CMSScavengeBeforeRemark

    -XX:ParallelCMSThreads=12

    -XX:CMSAbortablePrecleanWaitMillis=50

    -XX:+CMSClassUnloadingEnabled

    -XX:+CMSConcurrentMTEnabled

    -XX:CMSMarkStackSize=2M

    -XX:CMSMarkStackSizeMax=8M

    -XX:+ParallelRefProcEnabled

    -Xms20g -Xmx20g -Xmn512m

    -XX:ParallelGCThreads=14

    -XX:MaxPermSize=96m

    -Dsun.rmi.dgc.client.gcInterval=7200000

    -Dsun.rmi.dgc.server.gcInterval=7200000

    -XX:+UseFastAccessorMethods

    -XX:-UseFastEmptyMethods

    -XX:+UseFastJNIAccessors

    -XX:+UseConcMarkSweepGC

    -XX:+UseParNewGC

    -Xnoclassgc

    -XX:+DisableExplicitGC

    -XX:+UseCMSCompactAtFullCollection

    -XX:+CMSParallelRemarkEnabled 

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  • 原文地址:https://www.cnblogs.com/lzmrex/p/13754215.html
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