RFR: 8342818: Implement JEP 509: JFR CPU-Time Profiling [v26]
Johannes Bechberger
jbechberger at openjdk.org
Mon Jun 2 08:57:04 UTC 2025
On Sun, 1 Jun 2025 13:41:44 GMT, Johannes Bechberger <jbechberger at openjdk.org> wrote:
>> src/hotspot/share/jfr/periodic/sampling/jfrCPUTimeThreadSampler.cpp line 558:
>>
>>> 556: jt->is_JfrRecorder_thread()) {
>>> 557: queue.increment_lost_samples();
>>> 558: tl->set_do_async_processing_of_cpu_time_jfr_requests(false);
>>
>> Why is this restored here?
>
> Because I shouldn't sample if the thread isn't in native state anymore. The thread is probably sampled anyway on the outgoing safepoint.
But you might be right, I removed it.
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PR Review Comment: https://git.openjdk.org/jdk/pull/25302#discussion_r2120481274
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