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.