Thanks for the quick response. As of my disk IO. It's on a development machine but I don't feel particular slow because I also use it for JMS queue persist. And I don't see much delay for the JMS Queue processing when I sended persistent msg. I will update to 1.4 (current is 1.3) and try BDBJE cache loader and let you know. Regards. -Bruce View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3957864#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...