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From "Leon Rosenberg" <rosenberg.l...@googlemail.com>
Subject Re: How do I increase performance on Tomcat?
Date Mon, 29 Jan 2007 16:46:27 GMT
On 1/29/07, Nelson, Tracy M. <Tracy.Nelson@nelnet.net> wrote:
> | From: Gaurav Kushwaha [mailto:gaurav.kushwaha@gmail.com]
> | Sent: Monday, 29 January, 2007 06:11
> |
> |     I have an application that has been working fine for last half an year
> | or so. Recently the load has started increasing and the time it takes to
> | serve a request is going up significantly. When I look at the resource
> | utilization(memory and CPU), it hardly shows an increase. Garbage
> | collection
> | is also not the culprit. What might be causing this performance hit ?
>
> The first step is to measure the different components of your app to see
> where the degradation is.  Is it an external resource (database, message
> server, etc.)?  Is it internal?  Where is the app spending all its time?
>
> If you can, get a performance analysis tool like JProbe.  Otherwise, maybe
> you could instrument your code with simple timestamping of method entry/exit
> points.  The first step to solving performance problems is always finding
> out where the performance is going...

JProbe is hardely useable for production servers. Try to use something
lightweightier.

regards
Leon

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