Memory dump much smaller than available memory

Posted by Daniel on Stack Overflow See other posts from Stack Overflow or by Daniel
Published on 2010-05-11T05:24:22Z Indexed on 2010/05/11 5:44 UTC
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java

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hprof

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memory-leaks

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memory-dump

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dump

I have a Tomcat Application Server that is configured to create a memory dump on OOM, and it is started with -Xmx1024M, so a Gigabyte should be available to him.

Now I found one such dump and it contains only 260MB of unretained memory. How is it possible that the dump is so much smaller than the size he should have available?

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