JRE Memory Configuration

Submitted by ckelley on Tue, 06/17/2008 - 16:29

Memory settings for standalone Eclipse RCP app

Settings for the Java jvm memory are set in zCoreProject/app/executableName.ini. Here are typical settings:

-vmargs
-Xms256m
-Xmx768m
-XX:PermSize=128m
-XX:MaxPermSize=256M

The ini file must be the same name as the executable used to launch the application. If the application is called IRS.exe, name the file IRS.ini.

Don't try to set these values in jvm.cfg - it won't work.

See Eclipse and memory settings thread at http://blog.xam.dk/?p=58 - the comments are very useful.

Memory settings for Tomcat

You can craft the Tomcat memory settings in zCoreProject/bin/setenv.bat. Here are the typical settings:

set CATALINA_OPTS=-XX:PermSize=128m -XX:MaxPermSize=256M -Xms256M -Xmx512m

Add -Dlog4j.debug=true to debug log4j settings.