Using the Oracle JRockit JVM

JRockit is a JVM specifically designed for high performance application servers, and can often deliver better performance than HotSpot. This recipe explains how to switch to the JRockit JVM if you are not already using it.

Getting ready

This recipe assumes that you are starting WebLogic using the startWebLogic or startManagedWebLogic scripts, and if you are using the node manager or some other mechanism, you will need to specify the new JVM home location through the console or another mechanism.

How to do it…

To use the Oracle JRockit JVM, perform the following steps:

1. Navigate to the domain bin directory, as shown in the following command line:

   cd %MIDDLEWARE_HOME%/user_projects/soa_domain/bin

2. Edit the file setDomainEnv.cmd or setDomainEnv.sh, add the line set JAVA_VENDOR=Oracle or set JAVA_VENDOR=Oracle, depending on whether you are on Microsoft Windows or Linux.

   

3. Save the file.

4. Start WebLogic by running startWebLogic.sh or startWebLogic.cmd.

5. Check that the output lists...