[Bug 268532] [libthr] pthread_mutex_destroy/pshared_gc slow when destroying many process shared locks

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268532

--- Comment #5 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=4472a048cf95c9c1593a8b04655a59096b44b0c9

commit 4472a048cf95c9c1593a8b04655a59096b44b0c9
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2026-09-27 22:16:33 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-09-27 22:30:00 +0000

    libthr: GC pshared locks not more than each 25msecs by default

    Provide a tunable env variable to request immediate GC on destroy
    to allow to return to the previous behavior.

    Based on the report and patch by Atle Solbakken <atle.solbakken@gmail.com>.
    PR:     268532
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week

 lib/libthr/thread/thr_init.c    |  3 +++
 lib/libthr/thread/thr_private.h |  1 +
 lib/libthr/thread/thr_pshared.c | 25 ++++++++++++++++++++++---
 3 files changed, 26 insertions(+), 3 deletions(-)

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