Java GC: top object classes promoted (by size)?

Posted by Java Geek on Stack Overflow See other posts from Stack Overflow or by Java Geek
Published on 2010-02-25T16:50:14Z Indexed on 2010/03/11 17:54 UTC
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java

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garbage

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collection

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promotions

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composition

Hello!

Please let me know what is the best way to determine composition of young generation memory promoted to old generation, after each young GC event?

Ideally I would like to know class names which are responsible say, for 80% of heap in each "young gen -> old gen" promotion chunk;

Example: I have 600M young gen, each tenure promotes 6M; I want to know which objects compose this 6M.

Thank you.

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