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From Rob Davies <rajdav...@gmail.com>
Subject Re: Does AMQ Message Store downgrade the performance?
Date Tue, 13 May 2008 17:34:46 GMT

On 13 May 2008, at 18:12, janylj wrote:

>
> Hello,
>
> I am using the AMQ Message Store for the persistence. The  
> configuration is:
>
> <persistenceAdapter>
>  <amqPersistenceAdapter syncOnWrite="false"
> directory="${activemq.base}/data" maxFileLength="20 mb"/>
> </persistenceAdapter>
>
> It seems to me that the AMQ message store affects the performance a  
> lot. I
> am using Maven2 performance test
> (http://activemq.apache.org/activemq-performance-module-users-manual.html 
> ).
> 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
> broker.
>
> 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.
> -- 
> View this message in context: http://www.nabble.com/Does-AMQ-Message-Store-downgrade-the-performance--tp17213691s2354p17213691.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>

Which platform you working on ?



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