Thanks for Your reply. I know Your's post, it is really impresive :) jBPM is realllly fast. But - In Your's test - there was only one running process instance in one moment. (or I'm blind and stupid ;) ). I was thinking about test with a lot of running instances in one moment. Thanks for Your reply and Regards jakub naruszewicz View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4164487#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...