RFR: 8342818: Implement JEP 509: JFR CPU-Time Profiling [v58]
Markus Grönlund
mgronlun at openjdk.org
Wed Jun 4 19:08:40 UTC 2025
On Wed, 4 Jun 2025 17:54:50 GMT, Johannes Bechberger <jbechberger at openjdk.org> wrote:
>> This is the code for the [JEP 509: CPU Time based profiling for JFR](https://openjdk.org/jeps/509).
>>
>> Currently tested using [this test suite](https://github.com/parttimenerd/basic-profiler-tests). This runs profiles the [Renaissance](https://renaissance.dev/) benchmark with
>> - ... different heap sizes
>> - ... different GCs
>> - ... different samplers (the standard JFR and the new CPU Time Sampler and both)
>> - ... different JFR recording durations
>> - ... different chunk-sizes
>
> Johannes Bechberger has updated the pull request incrementally with one additional commit since the last revision:
>
> Improve disenroll
src/hotspot/share/jfr/periodic/sampling/jfrThreadSampling.cpp line 396:
> 394: }
> 395:
> 396: class SampleMonitor : public StackObj {
This is a merge error. SampleMonitor is no longer used and can be deleted.
-------------
PR Review Comment: https://git.openjdk.org/jdk/pull/25302#discussion_r2127252688
More information about the serviceability-dev
mailing list