I didn't perform benchmark before. I am working for a enterprise application now . The system presure is mainly on the database. The application server is much flexable. I think that The main adverange of treeCache is transactionable,more functions . If you just want a simple cache with LRU policy, you may use other cache, or write it your self. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4132380#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...