[Bug 275594] High CPU usage by arc_prune; analysis and fix
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Date: Fri, 16 Feb 2024 15:47:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275594
--- Comment #56 from Seigo Tanimura <seigo.tanimura@gmail.com> ---
(In reply to Seigo Tanimura from comment #55)
One small update:
* Update(s)
- Split the VFS part of the per-filesystem vnode counts into a separate commit.
- This commit adds a new field to struct mount. __FreeBSD_version may hence
have to be bumped.
- No functional changes in the fixes.
- *-fix and all branches depending on it are not changed except for the
commit hashes due to rebasing.
* 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
============+=========================================================+=================
main | topic-openzfs-arc_prune-regulation-fix |
57ddfad884
| topic-openzfs-arc_prune-regulation-counters |
------------+---------------------------------------------------------+-----------------
stable/14 | stable/14-topic-openzfs-arc_prune-regulation-fix |
20a6f4779a
| stable/14-topic-openzfs-arc_prune-regulation-counters |
------------+---------------------------------------------------------+-----------------
releng/14.0 | releng/14.0-topic-openzfs-arc_prune-regulation-fix |
4edf3b8073
| releng/14.0-topic-openzfs-arc_prune-regulation-counters |
------------+---------------------------------------------------------+-----------------
stable/13 | stable/13-topic-openzfs-arc_prune-regulation-fix |
9d2f548bbe
| stable/13-topic-openzfs-arc_prune-regulation-counters |
------------+---------------------------------------------------------+-----------------
releng/13.3 | releng/13.3-topic-openzfs-arc_prune-regulation-fix |
24eb518714
| releng/13.3-topic-openzfs-arc_prune-regulation-counters |
------------+---------------------------------------------------------+-----------------
releng/13.2 | releng/13.2-topic-openzfs-arc_prune-regulation-fix |
c78c31d2ef
| releng/13.2-topic-openzfs-arc_prune-regulation-counters |
| Git Commit Hash
| | Per-filesystem | |
|
| FreeBSD-EN-23:18.openzfs | Vnode Counters | ZFS & VFS | Nullfs
| Counters
Base Branch | Backport | (VFS part) | Fix | Fix
| (Not for merging)
============+==========================+================+============+============+===================
main | N/A | ee039d8ac5 | 79221e0ef1 |
207bd6942b | 319570b6b8
------------+--------------------------+----------------+------------+------------+-------------------
stable/14 | N/A | 2e4eb52fd9 | 7b7bf0eeda |
38baf54058 | 9ba27996f6
------------+--------------------------+----------------+------------+------------+-------------------
releng/14.0 | N/A | 5de24ff9b4 | de37505406 |
33ba6525ef | 3d2e1a59c9
------------+--------------------------+----------------+------------+------------+-------------------
stable/13 | 5c62c48b7a | d68540aa6e | 17ca0ab252 |
f004098adf | 58053d6f59
------------+--------------------------+----------------+------------+------------+-------------------
releng/13.3 | 0d279f56c3 | fb47a19236 | 4af563a184 |
5d309ad92f | 5814ad74f5
------------+--------------------------+----------------+------------+------------+-------------------
releng/13.2 | b784851090 | 7ef6cf8f72 | 5e979de6ca |
14702db1b8 | 185077cf44
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