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  • JAVA_OPTS

    对于JVM设置,可以查考如下配置example:

    # Memory configuration

    JAVA_OPTS="-server" JAVA_OPTS="$JAVA_OPTS -Xms1280m"

    JAVA_OPTS="$JAVA_OPTS -Xmx1280m"

    JAVA_OPTS="$JAVA_OPTS -XX:NewSize=640m"

    JAVA_OPTS="$JAVA_OPTS -XX:MaxNewSize=640m"

    JAVA_OPTS="$JAVA_OPTS -XX:SurvivorRatio=5"

    JAVA_OPTS="$JAVA_OPTS -XX:TargetSurvivorRatio=90"

    JAVA_OPTS="$JAVA_OPTS -XX:MaxTenuringThreshold=12"

    JAVA_OPTS="$JAVA_OPTS -XX:+UseConcMarkSweepGC"

    JAVA_OPTS="$JAVA_OPTS -XX:+CMSIncrementalMode"

    JAVA_OPTS="$JAVA_OPTS -XX:+CMSIncrementalPacing"

    JAVA_OPTS="$JAVA_OPTS -XX:+CMSParallelRemarkEnabled"

    JAVA_OPTS="$JAVA_OPTS -XX:+UseParNewGC"

    JAVA_OPTS="$JAVA_OPTS -XX:PermSize=64m"

    JAVA_OPTS="$JAVA_OPTS -XX:MaxPermSize=64m"

    JAVA_OPTS="$JAVA_OPTS -XX:+UseTLAB"


    # Enable class unloading (needed with ConcMarkSweepGC

    JAVA_OPTS="$JAVA_OPTS -XX:+CMSClassUnloadingEnabled"

    JAVA_OPTS="$JAVA_OPTS -XX:+CMSPermGenSweepingEnabled"


    # debug and memory tweaks to avoid Hotspot Compiler Failure

    JAVA_OPTS="$JAVA_OPTS -XX:+PrintCompilation"

    JAVA_OPTS="$JAVA_OPTS -XX:CodeCacheMinimumFreeSpace=2M"

    JAVA_OPTS="$JAVA_OPTS -XX:ReservedCodeCacheSize=64M"

    JAVA_OPTS="$JAVA_OPTS -XX:CompileCommandFile=/my/portal/bin/hotspot_compiler"


    # Enable JMX Remote Monitoring

    JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote"

    JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.port=9000" JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.ssl=false"

    JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.password.file=/my/portal/bin/jmxremote.password"

    JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote.access.file=/my/portal/bin/jmxremote.access"

     
    # turn on some debug for GC only print the distribution when doing tuning

    JAVA_OPTS="$JAVA_OPTS -verbose:gc"

    JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCTimeStamps"

    JAVA_OPTS="$JAVA_OPTS -XX:+PrintGCDetails"

     #JAVA_OPTS="$JAVA_OPTS -XX:+PrintTenuringDistribution"

    JAVA_OPTS="$JAVA_OPTS -Xloggc:/my/portal/logs/portal/gc.log"


    # Enable remote debugging port

    JAVA_OPTS="$JAVA_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n"

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  • 原文地址:https://www.cnblogs.com/michelleAnn2011/p/2318287.html
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