http://www.jboss.org/community/wiki/jBPM4ExecutionModes Not sure how to configure those if it is possible at all in the initial 4.0 release. Might be that some other modes will become available in 4.0.x or 4.1 And yes, multiple threads is indeed an option. In the performance tuning article the jbpm 'client' (your application) can start multiple parallel request e.g. via webpages. If you need some kind of batch processing, use e.g. jms to do parallel things with one simple mdb on a queue that starts one process if something is put in the queue and have x mdb's then The reason the article talks about increasing the threads is because async jbpm functionality in the background. If you start many processes, but only have one thread executing jobs (e.g. timers) a huge bottleneck is introduced there. hth View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4237249#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...