RFR: 8305670: Performance regression in LockSupport.unpark with lots of idle threads [v9]
Daniel D. Daugherty
dcubed at openjdk.org
Sat May 13 14:34:57 UTC 2023
On Thu, 11 May 2023 04:07:31 GMT, David Holmes <dholmes at openjdk.org> wrote:
>> Daniel D. Daugherty has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 10 commits:
>>
>> - Merge branch 'JDK-8307068' into JDK-8305670
>> - dholmes CR - FastThreadsListHandle ctr should use java_lang_Thread::thread() instead of java_lang_Thread::thread_acquire(); clarify comments.
>> - Merge branch 'JDK-8307068' into JDK-8305670
>> - Merge JDK-8305670 with code review changes in JDK-8307068.
>> - Merge branch 'JDK-8307068' into JDK-8305670
>> - Merge branch 'jdk-21+20' into JDK-8305670
>> - 8305670.with-rehn-quick-mode.cr3.patch
>> - Use optimized logic in Unsafe_Unpark() instead of cv_internal_thread_to_JavaThread().
>> - dholmes CR - add more comments.
>> - 8305670.with-rehn-quick-mode.cr0.patch
>
> Thanks Dan - looks good.
@dholmes-ora - Thanks for the re-review and approval.
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PR Comment: https://git.openjdk.org/jdk/pull/13519#issuecomment-1546665952
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