Peter, What do you think about the following JAVa arguments?: JAVA_OPTS=" -Xms1024M -Xmx1024M -server -XX:+AggressiveOpts -XX:PermSize=64m -XX:MaxPermSize=128m -XX:NewSize=256m -XX:MaxNewSize=256m -XX:SurvivorRatio=8 -XX:+UseParallelGC -verbose:memory -XX:+PrintGCDetails -Djava.security.policy=$JAVA_HOME/lib/security/java.policy " I have started jboss with this configuration on test environment right now. The apps seem to work a little faster, but i will have my QA team do load testing next week and try killing jboss and check performance. I am new to JVM tuning, so I am experimenting right now and trying to find the optimum between performance and stability. thank you in advance! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4186150#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...