"averri" wrote : I would like to improve the MDB performance, that is actually very bad on JBoss. | | I'm using JBoss v4.2.3, with integrated JBossMQ. | | Please help! | Ah, you are using JBoss AS-4.2.x. The docs that i refered you to are for JBoss AS-5.x. You will have to do similar configurations even in AS 4.x and you can follow this documentation for AS-4.x http://www.jboss.org/ejb3/docs/reference/build/reference/en/html/ View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4258743#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...