RFR: 8358621: Reduce busy waiting in worse case at the synchronization point returning from native in CPU Time Profiler [v2]

[Aleksey Shipilev]

On Tue, 15 Jul 2025 12:09:07 GMT, Johannes Bechberger <jbechberger at openjdk.org> wrote:

>> Simple optimization to reduce busy waiting in safepoint handlers.
>
> Johannes Bechberger has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Use SpinYield

Looks OK to me, as long as JFR folks are happy with this solution.

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Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/26314#pullrequestreview-3019998648