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From janylj <>
Subject Does AMQ Message Store downgrade the performance?
Date Tue, 13 May 2008 17:12:22 GMT


I am using the AMQ Message Store for the persistence. The configuration is:

  <amqPersistenceAdapter syncOnWrite="false"
directory="${activemq.base}/data" maxFileLength="20 mb"/>

It seems to me that the AMQ message store affects the performance a lot. I
am using Maven2 performance test
For the case of 1 producer and 1 durable subscriber, I got avg of 702
messages/second for the producer and only 58 messages/s for the durable
subscriber. However, after I deleted the ${activemq.base}/data folder and
ran the very same test. I got 1451 messages/s for the producer and 1450
messages/s for the durable subscriber. Note before my first test case, I ran
some other tests which publishes many messages to topics and queues on the

I am using activemq 5.1.0 stable release. Anyone has inputs on why AMQ
message store's data folder matters performance? It performs best when
having a fresh data center. Thank you very much.
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