[jdk21u-dev] Integrated: 8318986: Improve GenericWaitBarrier performance

[Aleksey Shipilev]

On Tue, 19 Dec 2023 13:09:39 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to drastically improve safepoint performance under heavy load, fixing regression between JDK 11 and JDK 17.
> 
> Additional testing:
>  - [x] Ad-hoc performance runs, expected improvements
>  - [x] MacOS AArch64 server fastdebug, `all` tests

This pull request has now been integrated.

Changeset: 6c5500bb
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk21u-dev/commit/6c5500bba68d62040004b3157b128ae645eb60c8
Stats:     286 lines in 2 files changed: 225 ins; 12 del; 49 mod

8318986: Improve GenericWaitBarrier performance

Backport-of: 30462f9da40d3a7ec18fcf46e2154fabb5fd4753

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PR: https://git.openjdk.org/jdk21u-dev/pull/70