Setting java heap size

Apr 06

adminJava No Comments

Tomcat
Stop Tomcat server, set environment variable CATALINA_OPTS, and then restart Tomcat.  For example,

set CATALINA_OPTS=-Xms512m -Xmx512m  (Windows, no "" around the value)


JBoss


Stop JBoss server, edit $JBOSS_HOME/bin/run.conf, and then restart JBoss server.


JAVA_OPTS="-server -Xms128m -Xmx128m"




Eclipse

You have 2 options:

1. Edit eclipse-home/eclipse.ini to be something like the following and restart Eclipse.


-vmargs-Xms64m-Xmx256m


2. Run eclipse command with additional options at the very end. Anything after -vmargs will be treated as JVM options and passed directly to the JVM. JVM options specified in the command line this way will always override those in eclipse.ini.


eclipse -vmargs -Xms64m -Xmx256m