In my installation i will have maximum of 350 clients which connect to the queue and send about 1 MB messages. In worst case scenario all of them will do it almost at the same time. I creaetd small program with 350 threads which connects to the amq with a 4 second delay between the threads. The worst time I got is 45 minutes to send one message for 160 threads. Have anybody been sending such size messages and has some performance results? Doesnt it take to long to send the message? Both computers are in the same segment of LAN. -- View this message in context: http://www.nabble.com/performance-with-1--MByte-messages-tf4600775s2354.html#a13135791 Sent from the ActiveMQ - User mailing list archive at Nabble.com.