[jdk25] RFR: 8358621: Reduce busy waiting in worse case at the synchronization point returning from native in CPU Time Profiler

Tue Jul 15 14:44:19 UTC 2025

Hi all,

This pull request contains a backport of commit [d2082c58](https://github.com/openjdk/jdk/commit/d2082c58ff086eb37c6211a8d1b813cdfedc2259) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Johannes Bechberger on 15 Jul 2025 and was reviewed by Aleksey Shipilev, Jaroslav Bachorik and Erik Gahlin.

Thanks!

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Commit messages:
 - Backport d2082c58ff086eb37c6211a8d1b813cdfedc2259

Changes: https://git.openjdk.org/jdk/pull/26320/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26320&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358621
  Stats: 5 lines in 1 file changed: 4 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/26320.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26320/head:pull/26320

PR: https://git.openjdk.org/jdk/pull/26320