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From Andrew Bruno <andrew.br...@gmail.com>
Subject Re: Perfomance analysis
Date Tue, 15 Jun 2010 09:53:56 GMT
Is jmeter on same box as app?

On 15/06/2010, at 7:05 PM, Michael Oullion <theazyfa@hotmail.com> wrote:

> hello,
>
> I'm doing some benchmark on Web service's Call and I have some  
> strange results.
>
> First of all,
> My web service is on a Axis2 1.5.1  framework,
> I use a Apache Tomcat 6.0.20 / JRE (server mode) 1.6.0_20-b02.
> I use JMeter 2.3.4 to do my benchmark.
>
> When I analyze my result, I have some nice (and stable ) things but  
> some times I observe a huge decrease of Hit/second and a huge  
> increase of response time.
> For example, normal response time is (avg) 300 ms and it increase to  
> 1.000 ms and more, at the same time the hit/second decrease from 90  
> to 40.
>
> I watch the CPU activity to see if the bottleneck is here and I  
> observe that I have the same thing.
> When the response time increase, the CPU activity fall down from 40%  
> to 10%.
> I watch disk time access too and I don't observe a link between this  
> activity and the fall of performance.
>
> I try to attach my graph to this mail but I don't know if it's okay  
> on the mailing list.
> I don't understand why some time the performance fall down.
> So, if you are some ideas...
>
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