RFR: 8352738: Implement JEP 520: JFR Method Timing and Tracing

Mon May 19 15:42:59 UTC 2025

Could I have a review of this enhancement that will add tracing capabilities to JFR? There are opportunities for performance improvements in the implementation, but I would rather add them later and separately.

Testing: tier 1-3, test/jdk/jdk/jfr

Thanks
Erik

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Commit messages:
 - Initial

Changes: https://git.openjdk.org/jdk/pull/25306/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25306&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8352738
  Stats: 7100 lines in 109 files changed: 6640 ins; 363 del; 97 mod
  Patch: https://git.openjdk.org/jdk/pull/25306.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25306/head:pull/25306

PR: https://git.openjdk.org/jdk/pull/25306