[PATCH] 8214535: Extend JMap to support parallel and incremental heap scanning

[臧琳]

Hi All,

    I am preparing the patch for https://bugs.openjdk.java.net/browse/JDK-8214535, and want to get your suggestions.


    To make the patch easier to review. I plan to make 3 patches as following:

    1. one patch for enabling file dump of "jmap -histo".(http://cr.openjdk.java.net/~xiaofeya/JDK-8214535/file_dump/webrev.00/webrev/)

    2. one patch for incremental dump intermediate data to file of "jmap -histo".(http://cr.openjdk.java.net/~xiaofeya/JDK-8214535/incremental/webrev.00/)

    3. one patch for parallel iterating heap of "jmap -histo". (WIP)


    And the patches for item 1 & 2 are ready. patch for 3 is WIP.

    May I ask your help to review these patches?

    Thanks.


BRs,

Lin
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