Hi, Chapter 13 "Tuning ActiveMQ for Performance" of the book "ActiveMQ in Action" details a variety of techniques for speeding things up. For your setup, you should try to answer the question "where is the time being spent?". For an idea of potential speed, the published results of various SPECjms2007 runs can be found here: http://www.spec.org/jms2007/results/jms2007.html http://www.spec.org/jms2007/results/jms2007.html :
E.g. http://www.spec.org/jms2007/results/res2010q3/jms2007-20100802-00021.png http://www.spec.org/jms2007/results/res2010q3/jms2007-20100802-00021.png shows a sustained messaging rate of the order of 1,000,000 messages per second for that combination of HW/OS/SW. All the best, Mick Hayes ----- Michael Hayes B.Sc. (NUI), M.Sc. (DCU), SCSA SCNA -- View this message in context: http://activemq.2283324.n4.nabble.com/Slow-and-fast-messages-tp3660295p3661531.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.