Integrated: 8292591: Experimentally add back barrier-less Java thread transitions

Tue Sep 13 08:35:19 UTC 2022

On Thu, 1 Sep 2022 16:47:58 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

> Please consider, only implemented on x64/aarch64 linux/windows. (@TheRealMDoerr have now contributed PPC64)
> 
> On my box calling clock_gettime via JNI goes from 35ns to 28ns when enabled.
> 
> Passes t1-7 with option forced on, also passes t1-4 as is in this PR.

This pull request has now been integrated.

Changeset: 1e1db5de
Author:    Robbin Ehn <rehn at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/1e1db5debd5e37650d7d7345544104a9050f418c
Stats:     405 lines in 20 files changed: 377 ins; 1 del; 27 mod

8292591: Experimentally add back barrier-less Java thread transitions

Reviewed-by: mdoerr, eosterlund, pchilanomate, dcubed

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PR: https://git.openjdk.org/jdk/pull/10123