Below is the jvm configuration of a tomcat server used to a liferay deployment installation

Options for memory profiling

Options for memory optimization

Heap Size (Xms and Xmx is good to have the same value)


Young generation size (up to 1/3 of the whole heap)

PermSize (usually small size gives PermGen space)


Garbage Collection
-XX:+UseConcMarkSweepGC (when you have multiple CPUs)

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