JDK-8252842 : Extend JMap to support parallel heap dump
  • Type: Enhancement
  • Component: core-svc
  • Sub-Component: tools
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2020-09-07
  • Updated: 2022-01-27
  • Resolved: 2021-09-23
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JDK 18
18 b17Fixed
Related Reports
CSR :  
JDK-8260424 - Extend JMap to support parallel heap dump
Duplicate :  
JDK-8252843 - Extend JMap to support parallel heap dump
Relates :  
JDK-8274196 - Crashes in VM_HeapDumper::work after JDK-8252842
Relates :  
JDK-8261482 - Adjust jmap histo command to accept noparallel option to inspect heap serially
Relates :  
JDK-8280809 - Parallel heap humping is broken for inlined objects
Sub Tasks
JDK-8261943 :  
add new attach API command dumpheapext for passing more options to jvm - Closed
Description
The JDK-8214535 added support for parallel iteration of different heap in hotspot. 
The parallel iteration mechanism can be used also for enabling parallel heap dump.
Comments
Changeset: a74c099d Author: Lin Zang <lzang@openjdk.org> Date: 2021-09-23 07:00:06 +0000 URL: https://git.openjdk.java.net/jdk/commit/a74c099d67272b2ef542405d30db62a82cbbebc6
23-09-2021