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How do I monitor PermGen (-XX:MaxPermSize) bytes in use/total, etc in a WebLogic environment?


Article ID: 35371


Updated On:


CA Application Performance Management Agent (APM / Wily / Introscope) INTROSCOPE



    We are using Introscope to monitor our WebLogic environment. With this, we are currently capturing the JVM heap size (Bytes in use/total, and heap used). 

    Does Introscope provide the ability to monitor/capture the PermGen (-XX:MaxPermSize) bytes in use/total, etc. as well?



   Yes. Enable GCMonitor by ensuring that GCMonitor.jar file is available in agent's core/ext directory and introscope.agent.gcmonitor.enable is set to true in its        I      IntroscopeAgent.profile file. 

   Once successfully executed, you should see the following metrics under the Agent's "GC Monitor|Memory Pools" tree in the Investigator:

   PS Eden Space

   PS Old Gen

   PS Perm Gen

   PS Survivor Space


   Additional Information: -- Configuring Java Agent Manual --APM Agent Documentation -- JVM Garbage Collection: Troubleshooting with CA APM -- Part 2


Release: CEMUGD00200-9.7-Introscope to CA Application-Performance Management-Upgrade Main