Hi Mike, Thank you very much for your input. In my case we do have SSD. After some reading and fumbling, I am able to get the about 2000 sending/receiving operations per second, with one message per transaction. The specific adjustments I have done to achieve the above were:
1. using <journal-type>MAPPED</journal-type> -- instead of <journal-type>NIO</journal-type> 2. setting <journal-datasync>false</journal-datasync> -- instead of default true 3. setting <journal-buffer-timeout>0</journal-buffer-timeout> -- instead of the default 7060000 With these adjustment, performance is more than adequate for our usage case. Cheers Youyu -- Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html
