[jdk17u-dev] Integrated: 8317960: [17u] Excessive CPU usage on AbstractQueuedSynchronized.isEnqueued

Wed Nov 29 17:41:20 UTC 2023

On Fri, 13 Oct 2023 11:44:22 GMT, David Alvarez <duke at openjdk.org> wrote:

> This patch brings the AbstractQueuedSynchronizer related changes from [JDK-8277090](https://bugs.openjdk.org/browse/JDK-8277090) to fix a performance issue that can happen in JDK17 too.
> 
> The rest of JDK-8277090 are done mostly in preparation of virtual threads and are covered under CSR [JDK-8285450](https://bugs.openjdk.org/browse/JDK-8285450). There is no plan at the moment to backport the rest of the changes to 17.

This pull request has now been integrated.

Changeset: 14e68123
Author:    David Alvarez <alvdavi at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
URL:       https://git.openjdk.org/jdk17u-dev/commit/14e681234d4557170937fe7d2f4306cfd59b8242
Stats:     6 lines in 2 files changed: 4 ins; 0 del; 2 mod

8317960: [17u] Excessive CPU usage on AbstractQueuedSynchronized.isEnqueued

Reviewed-by: phh

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PR: https://git.openjdk.org/jdk17u-dev/pull/1875