Pete, thanks for the response. I don't have the profiler results any more, but I believe the page time was around 3-4 seconds. This was a bit of an expensive page due to the amount of data being output in a table form, and that probably also explains why the event notification was becoming noticeable in this situation. I imagine in most cases it wouldn't be a problem. I'll enter a JIRA issue shortly. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4108227#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...