Integrated: 8341630: G1: Adopt PartialArrayState to consolidate marking stack in concurrent marking

Thu Jan 22 05:41:47 UTC 2026

On Thu, 15 Jan 2026 10:23:40 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

> Hi,
> 
> Please review this change which adopts the `PartialArrayState` mechanism for G1 concurrent marking.
> 
> The `PartialArrayState` mechanism can push multiple continuations to the task queues, so it also solves the single-continuation limitation issue in [JDK-8167480](https://bugs.openjdk.org/browse/JDK-8167480).
> 
> Testing: Mach5 Tier 1-3.

This pull request has now been integrated.

Changeset: 38a8309b
Author:    Ivan Walulya <iwalulya at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/38a8309b3f2544fa13448f5217e4227f0e2fe171
Stats:     386 lines in 7 files changed: 133 ins; 219 del; 34 mod

8341630: G1: Adopt PartialArrayState to consolidate marking stack in concurrent marking

Co-authored-by: Stefan Johansson <sjohanss at openjdk.org>
Reviewed-by: tschatzl, sjohanss

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PR: https://git.openjdk.org/jdk/pull/29249