[jboss-user] [Performance Tuning] - Re: [JBoss 5.0-CR2] OutOfMemory JVM Crash during JIT

Hi Peter, Thanks for that. To be honest, I strongly doubt there is any problem on the physical server. I have been using it for a couple of months doing intensive testing on my app running on JBoss 4.2.3 with both JRE5 and JRE6 without encountering any JVM problem. Since this JVM crash on JBoss 5 I have switched back to JBoss 423 and again : no JVM problem. As far as JVM settings are concerned, I am not saying I can explain, I have just observed and reproduced all the items below : - Xms1024 Xmx1024 PermGen512 = JVM crash at JBoss startup time - Xms1024 Xmx1024 PermGen256 = JVM crashes with 5 users after 10 mins - Xms768 Xmx768 PermGen512 = System up to 20 users and then crashes I have raised the issue to Sun already, waiting for their feedback. If I have anything meaningful back from them, I'll make sure I post it here. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4185618#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...