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From janylj <jan...@gmail.com>
Subject Re: Does AMQ Message Store downgrade the performance?
Date Tue, 13 May 2008 17:41:54 GMT

The broker and the clients are both at:
Ubuntu Release 8.04
Kernel Linux 2.6.24-16-generic

Please let me know if you need more info. Thank you.


rajdavies wrote:
> 
> 
> 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 ?
> 
> 
> 
> 

-- 
View this message in context: http://www.nabble.com/Does-AMQ-Message-Store-downgrade-the-performance--tp17213691s2354p17214308.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.


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