[Bug 270785] Performance and power efficiency regression due to pthread_cond_timedwait() changes

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From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 21 Nov 2023 16:26:52 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270785

bllcha013@myuct.ac.za changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|Open                        |Closed
         Resolution|---                         |FIXED

--- Comment #20 from bllcha013@myuct.ac.za ---
FreeBSD 14.0-RELEASE includes the LIBPTHREAD_UMTX_MIN_TIMEOUT per-process
tunable, and setting it like LIBPTHREAD_UMTX_MIN_TIMEOUT=10000000 before the
java command to start a Minecraft server for example, greatly improves power
efficiency. It is working great now.

Thank you for this, and thank you to everyone working on FreeBSD.

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