RFR: 8355003: Implement JEP 515: Ahead-of-Time Method Profiling [v20]

Igor Veresov iveresov at openjdk.org
Tue May 13 23:46:42 UTC 2025


> Improve warm-up time by making profile data from a previous run of an application instantly available, when the HotSpot Java Virtual Machine starts. Specifically, enhance the [AOT cache](https://openjdk.org/jeps/483) to store method execution profiles from training runs, reducing profiling delays in subsequent production runs.
> 
> More details in the JEP: https://bugs.openjdk.org/browse/JDK-8325147

Igor Veresov has updated the pull request incrementally with one additional commit since the last revision:

  Address Ioi's comments

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/24886/files
  - new: https://git.openjdk.org/jdk/pull/24886/files/1669f900..fd26cfe4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24886&range=19
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24886&range=18-19

  Stats: 12 lines in 1 file changed: 2 ins; 0 del; 10 mod
  Patch: https://git.openjdk.org/jdk/pull/24886.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24886/head:pull/24886

PR: https://git.openjdk.org/jdk/pull/24886


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