Date: Sun, 24 Sep 2023 21:47:01 GMT From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: ba4d4882ce72 - releng/14.0 - vfs: count how many times vnlru got woken up due to vnode shortage Message-ID: <202309242147.38OLl14O030945@gitrepo.freebsd.org>
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The branch releng/14.0 has been updated by mjg: URL: https://cgit.FreeBSD.org/src/commit/?id=ba4d4882ce72d60b82e09c6060edf054917eec39 commit ba4d4882ce72d60b82e09c6060edf054917eec39 Author: Mateusz Guzik <mjg@FreeBSD.org> AuthorDate: 2023-09-16 17:26:39 +0000 Commit: Mateusz Guzik <mjg@FreeBSD.org> CommitDate: 2023-09-24 21:46:21 +0000 vfs: count how many times vnlru got woken up due to vnode shortage Approved by: re (gjb) (cherry picked from commit 9080190b970c7026695571f90b95fdcf7056ec67) (cherry picked from commit e5114cc203a6bef23b072d9f98f6b8501e4ce6d9) --- sys/kern/vfs_subr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c index 11cdea5a7dc1..0251525a50c7 100644 --- a/sys/kern/vfs_subr.c +++ b/sys/kern/vfs_subr.c @@ -1477,6 +1477,10 @@ vnlru_recalc(void) */ static struct proc *vnlruproc; static int vnlruproc_sig; +static u_long vnlruproc_kicks; + +SYSCTL_ULONG(_vfs_vnode_vnlru, OID_AUTO, kicks, CTLFLAG_RD, &vnlruproc_kicks, 0, + "Number of times vnlru got woken up due to vnode shortage"); /* * The main freevnodes counter is only updated when a counter local to CPU @@ -1571,6 +1575,7 @@ vnlru_kick_locked(void) mtx_assert(&vnode_list_mtx, MA_OWNED); if (vnlruproc_sig == 0) { vnlruproc_sig = 1; + vnlruproc_kicks++; wakeup(vnlruproc); } }
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