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CMS-Initial-Mark GC Pause is increasing

user1039
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user1039 Published in June 20, 2018, 11:03 pm

We have recently migrated an application from Jrockit 1.6 to JVM 1.7. here we are observing that average pause duration as well as max pause duration for CMS-Initial Mark is steadily increasing.

VM Param we are using are as below

JAVA_OPTS="-d64 -server -Xms8g -Xmx10g -XX:NewSize=2g -XX:MaxNewSize=3g -XX:PermSize=512m -XX:MaxPermSize=512m -verbose:gc -verbose:memory -Dsun.rmi.dgc.client.gcInterval=86400000 -Dsun.rmi.dgc.server.gcInterval=86400000 -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=60 -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError -Xloggc:verbose-hotspot-server.date +%Y%m%d%H%M%S.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -verbose:gc -XX:+PrintGCApplicationStoppedTime -XX:+UseGCLogFileRotation -XX:GCLogFileSize=50M -Djava.util.Arrays.useLegacyMergeSort=true -XX:+PrintGCCause"

Thanks in Advance for any kind of help

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