RFR: 8352251: Implement JEP 518: JFR Cooperative Sampling [v34]

Thu May 22 11:21:55 UTC 2025

On Thu, 22 May 2025 11:02:08 GMT, Markus Grönlund <mgronlun at openjdk.org> wrote:

>> Reading is only done when the thread is suspended. However, I need to know that the critical section is set before the poll.
>
> The suspension mechanism should serialize all memory so that it appears to be set when read upon suspension.

Barriers now removed.

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PR Review Comment: https://git.openjdk.org/jdk/pull/24296#discussion_r2102306975