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From "Nelson, Tracy M." <>
Subject RE: How do I increase performance on Tomcat?
Date Mon, 29 Jan 2007 16:42:37 GMT
| From: Gaurav Kushwaha []
| 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...

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