RFR: 8342818: Implement JEP 509: JFR CPU-Time Profiling [v35]

[Markus Grönlund]

On Tue, 3 Jun 2025 12:31:53 GMT, Johannes Bechberger <jbechberger at openjdk.org> wrote:

>> tl->is_excluded() is volatile and can change during runtime, so it's better to add a timer unconditionally there.
>
> why not just `is_excluded`?

because tl->is_excluded() can get included and excluded many times during runtime. Its not a static property.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25302#discussion_r2124366551