Date: Tue, 05 Mar 2024 09:06:34 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 275594] High CPU usage by arc_prune; analysis and fix Message-ID: <bug-275594-3630-YtUsqmKiMO@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-275594-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-275594-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D275594 --- Comment #70 from Seigo Tanimura <seigo.tanimura@gmail.com> --- (In reply to Seigo Tanimura from comment #69) A quick note that the nullfs fix has been updated as per kib's review on https://reviews.freebsd.org/D44177. The nullfs fix is now implemented by a sysctl toggle (vfs.nullfs.cache_node= s) that controls the nullfs vnode caching, which is enabled by default. Set t= his to false to disable the nullfs vnode caching so that its lower vnodes can be recycled smoothly. * Github Sources All of the sources are under https://github.com/altimeter-130ft/freebsd-freebsd-src. - Branches and Git Commit Hashes | | Git Commit Hash | Fix Branch | Base Branch | Fix + Counter Branch | Base =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D main | topic-openzfs-arc_prune-regulation-fix | 57ddfad884 | topic-openzfs-arc_prune-regulation-counters |=20 ------------+---------------------------------------------------------+----= ------------- stable/14 | stable/14-topic-openzfs-arc_prune-regulation-fix | 20a6f4779a | stable/14-topic-openzfs-arc_prune-regulation-counters |=20 ------------+---------------------------------------------------------+----= ------------- releng/14.0 | releng/14.0-topic-openzfs-arc_prune-regulation-fix | 4edf3b8073 | releng/14.0-topic-openzfs-arc_prune-regulation-counters |=20 ------------+---------------------------------------------------------+----= ------------- stable/13 | stable/13-topic-openzfs-arc_prune-regulation-fix | 9d2f548bbe | stable/13-topic-openzfs-arc_prune-regulation-counters |=20 ------------+---------------------------------------------------------+----= ------------- releng/13.3 | releng/13.3-topic-openzfs-arc_prune-regulation-fix | 24eb518714 | releng/13.3-topic-openzfs-arc_prune-regulation-counters |=20 ------------+---------------------------------------------------------+----= ------------- releng/13.2 | releng/13.2-topic-openzfs-arc_prune-regulation-fix | c78c31d2ef | releng/13.2-topic-openzfs-arc_prune-regulation-counters |=20 | Git Commit Hash | | Per-filesystem | |=20= =20=20=20=20=20=20=20=20=20 | FreeBSD-EN-23:18.openzfs | Vnode Counters | ZFS & VFS | Null= fs Base Branch | Backport | (VFS part) | Fix | Fix =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D main | N/A | ee039d8ac5 | 79221e0ef1 | 15e81087f5 ------------+--------------------------+----------------+------------+-----= ------- stable/14 | N/A | 2e4eb52fd9 | 7b7bf0eeda | 37404c6e9e ------------+--------------------------+----------------+------------+-----= ------- releng/14.0 | N/A | 5de24ff9b4 | de37505406 | 0a2e6025ce ------------+--------------------------+----------------+------------+-----= ------- stable/13 | 5c62c48b7a | d68540aa6e | 17ca0ab252 | ae550ed68a ------------+--------------------------+----------------+------------+-----= ------- releng/13.3 | 0d279f56c3 | fb47a19236 | 4af563a184 | 767b47b774 ------------+--------------------------+----------------+------------+-----= ------- releng/13.2 | b784851090 | 7ef6cf8f72 | 5e979de6ca | 93cefa9124 | Git Commit Hash | Counters Base Branch | (Not for merging) =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D main | 4d5ae0f6aa ------------+------------------- stable/14 | bf4b2e420d ------------+------------------- releng/14.0 | 9de8754bcf ------------+------------------- stable/13 | 8b9a9ad167 ------------+------------------- releng/13.3 | d0389390ce ------------+------------------- releng/13.2 | 5301e244af --=20 You are receiving this mail because: You are the assignee for the bug.=
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