JEP proposed to target JDK 25: 515: Ahead-of-Time Method Profiling

Mark Reinhold mark.reinhold at oracle.com
Thu May 22 19:08:12 UTC 2025


2025/5/15 14:21:40 -0400, mark.reinhold at oracle.com:
> The following JEP is proposed to target JDK 25:
> 
>   515: Ahead-of-Time Method Profiling
>        https://openjdk.org/jeps/515
> 
>   Summary: Improve warmup time by making method-execution profiles from
>   a previous run of an application instantly available, when the HotSpot
>   Java Virtual Machine starts.  This will enable the JIT compiler to
>   generate native code immediately upon application startup, rather than
>   having to wait for profiles to be collected.
> 
> Feedback on this proposal from JDK Project Committers and Reviewers [1]
> is more than welcome, as are reasoned objections.  If no such objections
> are raised by 19:00 UTC on Thursday, 22 May, or if they’re raised and
> then satisfactorily answered, then per the JEP 2.0 process proposal [2]
> I’ll target this JEP to JDK 25.

Hearing no objections, I’ve targeted this JEP to JDK 25.

- Mark


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