Page MenuHomeFreeBSD
Differential D44175

kern/openzfs: Regulate the ZFS ARC pruning process precisely. (stable/13)
Needs ReviewPublic
Actions

Authored by seigo.tanimura_gmail.com on Mar 1 2024, 5:36 PM.
Tags
None
Referenced Files
Unknown Object (File)
Dec 15 2024, 2:56 AM
Unknown Object (File)
Nov 25 2024, 12:29 PM
Unknown Object (File)
Nov 25 2024, 12:28 PM
Unknown Object (File)
Nov 25 2024, 4:05 AM
Unknown Object (File)
Nov 23 2024, 7:50 PM
Unknown Object (File)
Nov 21 2024, 11:56 AM
Unknown Object (File)
Nov 21 2024, 9:57 AM
Unknown Object (File)
Nov 20 2024, 8:59 AM
View All 69 Files
Subscribers
delphij
emaste
imp
olce
zirias

Details

Reviewers
olce
Summary

This fix essentially eliminates the high CPU usage caused by the ARC pruning
thread, acknowledged by FreeBSD-EN-23:18.openzfs.

  • Key Features
  • Accounting of the ZFS vnodes in use. (v_usecount > 0)
  • Recycling of the ZFS vnodes with the precise target.
  • Acceleration of the ZFS vnode recycling by the ARC eviction waiters.

PR: 275594
Reported By: Thomas Mueller <thmu7@freenet.de>
Security: FreeBSD-EN-23:18.openzfs
Signed-off-by: Seigo Tanimura <seigo.tanimura@gmail.com>

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 56979
Build 53867: arc lint + arc unit

Event Timeline

seigo.tanimura_gmail.com created this revision.Mar 1 2024, 5:36 PM
Herald added subscribers: olce, delphij, imp. · View Herald TranscriptMar 1 2024, 5:36 PM
seigo.tanimura_gmail.com requested review of this revision.Mar 1 2024, 5:36 PM
Harbormaster completed remote builds in B56374: Diff 135276.Mar 1 2024, 5:36 PM
seigo.tanimura_gmail.com added a comment.Mar 1 2024, 5:37 PM

Target branches: stable/13, releng/13.3
Backport of: https://reviews.freebsd.org/D44173

seigo.tanimura_gmail.com added a parent revision: D44172: kern/vfs: Add the per-filesystem vnode counter to struct mount. (stable/13).Mar 1 2024, 5:37 PM
seigo.tanimura_gmail.com added a child revision: D44178: kern/nullfs: Implement the recycling on the nullfs nodes. (stable/13).Mar 1 2024, 5:44 PM
seigo.tanimura_gmail.com retitled this revision from kern/openzfs: Regulate the ZFS ARC pruning process precisely. to kern/openzfs: Regulate the ZFS ARC pruning process precisely. (stable/13).Mar 1 2024, 5:58 PM
zirias added a subscriber: zirias.Mar 22 2024, 1:35 PM
seigo.tanimura_gmail.com updated this revision to Diff 136762.Apr 9 2024, 9:56 AM

Follow style(9).

Harbormaster completed remote builds in B56979: Diff 136762.Apr 9 2024, 9:56 AM
olce added a reviewer: olce.Apr 11 2024, 9:54 PM
emaste added a subscriber: emaste.May 6 2024, 4:59 PM

Revision Contents
Changeset List

PathSize
sys/
contrib/
openzfs/
include/
os/
freebsd/
zfs/
sys/
6 lines
sys/
1 line
module/
os/
freebsd/
zfs/
144 lines
70 lines
5 lines
44 lines
2 lines
9 lines
zfs/
12 lines
kern/
193 lines

Diff 136762

View Options

sys/contrib/openzfs/include/os/freebsd/zfs/sys/zfs_vfsops_os.h

Loading...
View Options

sys/contrib/openzfs/include/sys/arc.h

Loading...
View Options

sys/contrib/openzfs/module/os/freebsd/zfs/arc_os.c

Loading...
View Options

sys/contrib/openzfs/module/os/freebsd/zfs/sysctl_os.c

Loading...
View Options

sys/contrib/openzfs/module/os/freebsd/zfs/zfs_ctldir.c

Loading...
View Options

sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vfsops.c

Loading...
View Options

sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vnops_os.c

Loading...
View Options

sys/contrib/openzfs/module/os/freebsd/zfs/zfs_znode.c

Loading...
View Options

sys/contrib/openzfs/module/zfs/arc.c

Loading...
View Options

sys/kern/vfs_subr.c

Loading...