I had a single broker, which uses the default configuration. Then I had a Producer sending messages to a queue and a Consumer reading from the queue. At this time, the CPU usage on the broker is about 60%-70%. Because the broker is on a box with 2 Xeon processes each @ 1.86GHz, each processor has more than 50% idle. Then I added another Producer and Consumer to the queue, it drove the combined CPU usage over 100% and each processor only had 30% idle. I think mostly Producer is taking CPU resource, adding more Consumer doesn't seem to put much CPU load.
Finally the message rate for one producer is about 4K message/second. While the rate when having three producers simultaneously only is 1.5K message/second each. The question is that whether it's expected from Activemq or something I did wrong. Also does it imply that adding more producer does not increase throughput, if not decrease it? Thank you very much. -- View this message in context: http://www.nabble.com/Why-producer-to-a-queue-or-durable-topic-consumes-a-lot-of-CPU--tp17524607s2354p17524607.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
