git: openjdk/jdk11u-dev: 8215624: Add parallel heap iteration for jmap –histo

[Christoph Langer]

Changeset: 085dbe32
Author:    Bin Liao <buddyliao at tencent.com>
Committer: Christoph Langer <clanger at openjdk.org>
Date:      2021-09-08 05:12:19 +0000
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/085dbe326db0684bee22719094ff7e719f9aacb0

8215624: Add parallel heap iteration for jmap –histo
8253763: ParallelObjectIterator should have virtual destructor

Chunk and parallelize the heap scan

Reviewed-by: clanger
Backport-of: 3498a10a2b4cfcdf219b4433124a2358eb6100c9

! src/hotspot/share/gc/cms/cmsHeap.hpp
! src/hotspot/share/gc/epsilon/epsilonHeap.hpp
! src/hotspot/share/gc/g1/g1CollectedHeap.cpp
! src/hotspot/share/gc/g1/g1CollectedHeap.hpp
! src/hotspot/share/gc/parallel/parallelScavengeHeap.cpp
! src/hotspot/share/gc/parallel/parallelScavengeHeap.hpp
! src/hotspot/share/gc/serial/serialHeap.hpp
! src/hotspot/share/gc/shared/collectedHeap.hpp
! src/hotspot/share/gc/shared/vmGCOperations.cpp
! src/hotspot/share/gc/shared/vmGCOperations.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
! src/hotspot/share/gc/z/zCollectedHeap.hpp
! src/hotspot/share/memory/heapInspection.cpp
! src/hotspot/share/memory/heapInspection.hpp
! src/hotspot/share/runtime/arguments.hpp
! src/hotspot/share/services/attachListener.cpp
! src/jdk.jcmd/share/classes/sun/tools/jmap/JMap.java
! test/jdk/sun/tools/jmap/BasicJMapTest.java