Enabling Linux HugePages can improve the performance of the Oracle JRockit JVM and have several advantages over the default page size of 4 KB in Linux.
In this recipe, the HugePages will be enabled on all machines in the
PROD_DOMAIN domain. A new JVM parameter will be added to the Managed Servers so the JVM makes use of the HugePages.
prod01 hosts the PROD_Server01 and PROD_Server02 Managed Servers. Since each instance is configured with a heap size of 2 GB, reserving 4 GB for HugePages in prod01 should be enough.
Before configuring the Linux HugePages, shut down all WebLogic Servers in the domain. Also stop the Administration Console instance and the Node Manager.
To enable the Linux HugePages, ...