How do I change the Java heapsize?
I have an installation with JTS, RTC, RRC, and RQM + RSA/DM, running in a VMWare image for demo purposes. I want to increase the Java heapsize to improve performance. How do I do that?
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Accepted answer
Instead of touching the catalina.bat, you should rather edit <install dir>/server/server.startup.bat (or shell script)
Look for these lines, and edit them to meet your needs: set JAVA_OPTS=%JAVA_OPTS% -Xmx4G set JAVA_OPTS=%JAVA_OPTS% -Xms4G set JAVA_OPTS=%JAVA_OPTS% -Xmn512M Try to keep max (-Xmx) heap == min (-Xms) heap, and nursery size (-Xmn) to 1/8 of max heap. Sandra Bernspang selected this answer as the correct answer
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3 other answers
Hi Sandra,
If you want increase Java heap size on websphere follow these steps below.
Tks Anderson |
You can use this topic for reference http://pic.dhe.ibm.com/infocenter/clmhelp/v4r0/topic/com.ibm.jazz.install.doc/topics/t_run_rqm64_win_service.html
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Your answer
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