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profiler for JSF application under tomcat

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I have an app with a dynamically generated form of up to and over 600 input boxes/checkboxes and when I submit it tomcat uses all of the memory allocated to it (768MB) and dies. Sometimes I run out of heap space, or a more generic 'error occurred while performing action method' sort of message. The problem is I'm not even getting to my action method code.

Can anyone recommend a good, easy to use profiler that will help me find where all of my memory is going? I have to have this app ready for 20+ users in a maximum of 1.5GB mem!
[ July 11, 2006: Message edited by: Jamie Williams ]
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You can try Auptyma's Java Application Monitor. It will take a snapshot of the heap and tell you where the memory is being used and how it is reachable. You can download a trial version from If you want to run it on Windows or some other platform, drop me an email at first and I'll be happy to help you.


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