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JVM Native memory

Posted on 2011-09-19
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Last Modified: 2012-05-12
Hi experts,
Its kind of generic question. Can somebody explain if its possible to reduce native memory used by JVM. I have couple of environments where the native memory used is quite a bit.. around 500Mb or more. Any tool that I could use to find out native memory leak? Thanks
I am using WebSphere 7
AIX 6.1
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Question by:Sai1319
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Expert Comment

by:HonorGod
ID: 36563951
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Author Comment

by:Sai1319
ID: 36571660
Thanks HonorGod, I guess, we can look into thread dumps to see how much native memory is being used. That is much easier then analyzing the heap.

Does anybody know if the native memory footprints can be reduced? if yes, please explain. Thanks
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HonorGod earned 1000 total points
ID: 36573074
Q: Can native memory footprints can be reduced?
A: Yes... but...

From here: http://www.IBM.com/support/docview.wss?rs=180&uid=swg21373312

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Finding the users of native memory can be a lengthy process, as there is no way of knowing which code allocated the native memory. There are no comparable heapdumps for native memory, so we have to use trial and error, going through each of the potential native memory users until we find the one that is causing the problem.
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LVL 41

Expert Comment

by:HonorGod
ID: 36904660
Thanks for the grade & points.

Good luck & have a great day.
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