zaoliu schrieb:
An issue when testing performance s when I increase the number of consumers for testing non-persistent messages, the throughput get down very fast. I can't find the reason for it. Each consumer thread is a separate connection to the broker. Below is my result for testing (all using one producer to send messages in a separate JVM): 1 consumer: 12683/s 2 consumers: 11289/s 3 consumers: 9956/s 4 consumers: 8638/s 10 consumers: 5820/sTo my understanding, increasing the consumer numbers should improve the throughput of brokers, but the result is opposite to my expectation.
To my understanding, increasing the number of consumers should not change the *overall* throughput. In fact, I'd expect a slightly worse throughput because the broker has to do more management work than with just one consumer. However, you point out a serious problem here. See also <https://issues.apache.org/activemq/browse/AMQ-1586>.
Mit freundlichen Grüßen / Best regards
Rainer Klute Architect IT Services Europe Deutsche Post IT Services GmbH Konrad-Adenauer-Platz 1 40210 Düsseldorf Germany Phone: +49 (0)211 163 1156 Mobile: +49 (0)172 2324824 http://www.dhl.com/ [EMAIL PROTECTED] OpenPGP fingerprint: 10F3E02A46E48B5BE7F1B70263F50FB920B926C2
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