My heap graph with JVM Parameters : 1. When set JAVA_OPTS=%JAVA_OPTS% -Xms1024m -Xmx1024m Graph is http://img260.imageshack.us/img260/2228/withoutyoungsize.jpg [img]http://img260.imageshack.us/img260/2228/withoutyoungsize.jpg[/img] 2. When set JAVA_OPTS=%JAVA_OPTS% -Xms1024m -Xmx1024m -XX:NewSize=300M -XX:MaxNewSize=300M -XX:SurvivorRatio=32 -XX:+UseTLAB -XX:TLABSize=64K Graph is [url]http://img260.imageshack.us/img260/1281/withyoungsize.jpg [/url] [img]http://img260.imageshack.us/img260/1281/withyoungsize.jpg [/img] View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4258538#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...