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From Rob Davies <rajdav...@gmail.com>
Subject Re: activemq 5.3 slower than 4.1.2?
Date Tue, 09 Feb 2010 06:14:03 GMT
It might be worth turning off producer flow control - see http://cwiki.apache.org/ACTIVEMQ/producer-flow-control.html

On 9 Feb 2010, at 02:04, hwl wrote:

>
> Found a thread in the forum on similar issue that links to
> http://cwiki.apache.org/ACTIVEMQ/my-producer-blocks.html.
>
> We tried, and do not observe the blocking issue so far. However, the
> performance dropped, with the average response time now at about  
> 600ms. We
> set the usageManager limit to 128MB and tried 512MB as well. Are  
> there some
> other configs that we can tune further?
>
> Thanks!
>
>
>
> hwl wrote:
>>
>> Our application previously ran on activemq 4.1.2 and was able to  
>> achieve <
>> 500ms response time in average. However, some locking issue was  
>> observed
>> (WAITING on  
>> edu.emory.mathcs.backport.java.util.concurrent.locks.CondVar)
>> and we upgraded the activemq component to 5.3.0. The locking issue  
>> does
>> not occur so far, but the performance drops to >2 second on average
>> response time which breaches the performance critieria.
>>
>> Any idea what could introduce such significant overhead and any way  
>> to
>> tune it?
>>
>> Our messaging service is non-persistent and activemq has been  
>> configured
>> accordingly.
>>
>> thanks!
>>
>> - Wanling
>>
>
> -- 
> View this message in context: http://old.nabble.com/activemq-5.3-slower-than-4.1.2--tp27486527p27509403.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>

Rob Davies
http://twitter.com/rajdavies
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