JRockit

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JRockit is an Oracle's tuned JVM based on latest JDK 1.6 version. It has introduced some new memory management features that are proven to add to Tomcat stability.

We have tested JRockit JVM on high traffic websites running Tomcat, and while speed doesn't seem to be improved by much, stability of the JVM certainly is.

Features available to JRockit only

-XgcPrio
Specifies what to prioritize: even pause times or maximum throughput

-XpauseTarget
Specifies a suitable pause time for the application

Migration

It is recommended that you run series of tests running your application on Jrockit. Some memory options that you pass via JAVA_OPTS variable have different name, and they need to be changed. You also need to change JAVA_HOME variable to new JVM root.

After that, restart your Java application and if everything is running well, you might give it a few days to measure the performance.

It looks promising!

Our engineers have lots of experience with JRockit, so you will be freely migrated to JRockit at your will. Our java hosting platforms fully support Jrockit.