JVMConfiguration - cws-khuntly/WebSphere GitHub Wiki

date: 2025-05-08 14:40:02 created: 2025-05-08 14:38:28 categories:

JVM Configuration

Navigate to Servers -> Server Types -> WebSphere Application Servers

For each Portal server, perform the following steps:

Select "Process Definition" under "Java and Process Management"

Select "Java Virtual Machine"

- Uncheck "Verbose class loading"

- Check "Verbose garbage collection"

- Uncheck "Verbose JNI"

- Initial heap space: 4096

- Maximum heap space: 4096

- NOTE: The above heap sizes are base values and should be adjusted to suit the environment

- Check "Run HProf"

- HProf arguments: cpu=samples,interval=20,format=a,file=${SERVER_LOG_ROOT}/java.hprof.txt,force=n,thread=y,lineno=y

- Uncheck "Debug mode"

- Leave "Debug arguments" populated with the default values

- Enter the following in the "Generic JVM arguments" textbox: [Generic JVM Arguments for Portal Servers](onenote:#Generic JVM Arguments for Portal Servers&section-id={5A2B23FD-459E-41BA-8047-B07D4BBF2CB9}&page-id={38EE069B-80A6-48AB-BBA7-AA0D35C5D527}&end&base-path=https://d.docs.live.net/695f42c59c29bbc9/Documents/WebSphere/Documentation/WebSphere/WebSphere/Portal%20Server%20Build.one)

- Click "OK"

Select "Process Execution"

- Run as user: The desired service account ID

- Run as group: The primary group for the "Run as user" account

- Click "OK"

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