JDK-8233697 : CHT: Iteration parallelization
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 14
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2019-11-06
  • Updated: 2022-11-15
  • Resolved: 2022-11-02
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JDK 20
20 b22Fixed
Related Reports
Relates :  
JDK-8058803 - Allow one remembered set to be used for multiple regions
Description
There is need to parallelize iteration of CHT iteration, i.e. multiple threads being allowed to work on a single (large) CHT during safepoint with no concurrent modifications of any kind.

In GC we often parallelize HT iteration on a set of buckets basis in such situations.
Comments
Changeset: 1a58cb1c Author: Ivan Walulya <iwalulya@openjdk.org> Date: 2022-11-02 11:38:45 +0000 URL: https://git.openjdk.org/jdk/commit/1a58cb1c023c876594e8a53d00703e564a922d36
02-11-2022
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/10759 Date: 2022-10-19 10:15:46 +0000
19-10-2022
Probably needed for implementation of JDK-8058803.
27-05-2021