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  1. JDK
  2. JDK-8252842 Extend JMap to support parallel heap dump
  3. JDK-8261943

add new attach API command dumpheapext for passing more options to jvm

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: P4
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: tools
    • Labels:
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      Description

      The current implement of jcmd - jmap command could only pass less than 4 arguments to jvm.
      With the introduction of "parallel=[N]" option, the "jmap -dump" option could have 4 arguments: "file=" , "-live", "gz=" and "parallel=".
      To avoid the compatibility issue between old/new jmap and old/new jvm, a new attach API command "dumpheapext" needs to be added for passing extra arguments.

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              Assignee:
              lzang Lin Zang
              Reporter:
              lzang Lin Zang
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                Updated:
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