How do I increase WebLogic Server memory?

Increase the allocation of Java heap memory for WebLogic Server. (Set the minimum and the maximum to the same size.) Start WebLogic Server with the -ms32m option to increase the allocation, as in this example:

$ java ... -ms32m -mx32m ...

This allocates 32 megabytes of Java heap memory to WebLogic Server, which improves performance and allows WebLogic Server to handle more simultaneous connections. You can increase this value if necessary.

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This can be modified in setDomainEnv.sh file, or server start tab in admin console.

<$WEBLOGIC_HOME>\user_projects\domains\\bin\setDomainEnv.sh


https://blogs.oracle.com/imc/entry/weblogic_server_performance_and_tuning

http://docs.oracle.com/cd/E10391_01/doc.910/e10361/tuningforappserver.htm