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From hwl <wlhu...@ncs.com.sg>
Subject Re: activemq 5.3 slower than 4.1.2?
Date Tue, 09 Feb 2010 02:04:07 GMT

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
> 

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