[jboss-user] [Performance Tuning] - Re: Cpu 100% and GC is running

sreenivas arumilli do-not-reply at jboss.com
Fri Jan 6 04:23:05 EST 2012


sreenivas arumilli [http://community.jboss.org/people/arumilli] created the discussion

"Re: Cpu 100% and GC is running"

To view the discussion, visit: http://community.jboss.org/message/644983#644983

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Thanks for your quick response..

I done the modification to JVM parameters and still threads getting incresing with GC.

-Dprogram.name=run.sh -Dprogram.name=run.sh -server -Xms3872m -Xmx3872m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -XX:NewSize=1278m -XX:MaxNewSize=1278m -Djava.net.preferIPv4Stack=true -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -Djavax.net.ssl.trustStore=/opt/properties/.keystore -Djavax.net.ssl.trustStorePassword=changeit -Dcom.sun.management.jmxremote.port=8888 -Djava.rmi.server.hostname=192.168.100.39 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote -XX:+PrintGCDetails -Xloggc:/opt/gc.log -XX:+UseTLAB -XX:+UseParNewGC -XX:ParallelGCThreads=4 -Xss256k -Djava.net.preferIPv4Stack=true


Do i need to add survivor ratio ,if also how I can decide the ratio value.
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