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From zaoliu <>
Subject Confusing results for my performance testing
Date Thu, 21 Feb 2008 23:03:35 GMT

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/s

To my understanding, increasing the consumer numbers should improve the
throughput of brokers, but the result is opposite to my expectation. 

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