Java生产环境中应该配置的一些jvm参数

java 应用程序部署在服务器上，应该具备一些基本的参数。下面分jdk1.8之前，以及 1.8之后分别列出来。以供以后参考

-server
    -Xms[g|m|k] -Xmx[g|m|k]
    -XX:PermSize=[g|m|k] -XX:MaxPermSize=[g|m|k]
    -Xmn[g|m|k]
    -XX:SurvivorRatio=-XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled
    -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=-XX:+ScavengeBeforeFullGC -XX:+CMSScavengeBeforeRemark
    -XX:+PrintGCDateStamps -verbose:gc -XX:+PrintGCDetails -Xloggc:""
    -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M
    -Dsun.net.inetaddr.ttl=-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=`date`.hprof
    -Djava.rmi.server.hostname=-Dcom.sun.management.jmxremote.port=-Dcom.sun.management.jmxremote.authenticate=false 
    -Dcom.sun.management.jmxremote.ssl=false

jdk 1.8 之后的参数:

-server
    -Xms[g|m|k] -Xmx[g|m|k]
    -XX:MaxMetaspaceSize=[g|m|k]
    -Xmn[g|m|k]
    -XX:SurvivorRatio=-XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled
    -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=-XX:+ScavengeBeforeFullGC -XX:+CMSScavengeBeforeRemark
    -XX:+PrintGCDateStamps -verbose:gc -XX:+PrintGCDetails -Xloggc:""
    -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M
    -Dsun.net.inetaddr.ttl=-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=`date`.hprof
    -Djava.rmi.server.hostname=-Dcom.sun.management.jmxremote.port=-Dcom.sun.management.jmxremote.authenticate=false 
    -Dcom.sun.management.jmxremote.ssl=false

里面最为特殊的，就是让JMX也可以工作，因为方便以后visualVM等远程连接操作。

From：一号门