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From Michael Oullion <theaz...@hotmail.com>
Subject RE: Perfomance analysis
Date Tue, 15 Jun 2010 10:34:51 GMT

Oh sorry, I forgot to explain my architecture.

No, I have one dedicated server which host the tomcat and I use JMeter on a second server
( not dedicated ).
 
> From: andrew.bruno@gmail.com
> To: users@tomcat.apache.org
> Subject: Re: Perfomance analysis
> Date: Tue, 15 Jun 2010 19:53:56 +1000
> CC: users@tomcat.apache.org
> 
> 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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