From: bugzilla-daemon@kernel.org
To: linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [Bug 216050] f2fs_gc occupies 100% cpu
Date: Sun, 20 Aug 2023 10:18:41 +0000 [thread overview]
Message-ID: <bug-216050-202145-m2ciJ1IMlx@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-216050-202145@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=216050
--- Comment #180 from kelak (aleks_@gmx.net) ---
(In reply to Guido from comment #179)
> (In reply to kelak from comment #178)
> > >Jaegeuk has proposed a workaround solution as below, it aims to enable
> from
> > >6.6-rc1, could you please have a try with it?
> > >
> >
> >
> >https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=5a47ad28e6061c8fddf5c82d49fdc3280a80b2c4
> >
> >
> > I'll try to build and test a 6.4.x kernel next week which has that
> > workaround-patch included.
>
> Did it work?
I have rebuilt the arch linux kernel 6.4.6 with the mentioned patch last
weekend.
I have an uptime of one week now, and the issue has not occurred yet. So it's
too short to say anything definite.
However, before I started the patched kernel I played around with the
garbage-collect-script. I observed that After some iterations the
f2fs_gc-thread took ~25-30% CPU and the number of dirty-segments stayed
constant at around 10000. I stopped the garbage-collect-script, but
f2fs-gc-thread CPU usage stayed at ~20-30%. I rebooted after ~15 minutes.
I observed this for both kernels, the patched one and the unpatched one.
I'll leave the patched kernel running for some more weeks.
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next prev parent reply other threads:[~2023-08-20 10:18 UTC|newest]
Thread overview: 182+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-30 11:28 [f2fs-dev] [Bug 216050] New: fsfs_gc occupies 100% cpu bugzilla-daemon
2022-05-30 11:52 ` [f2fs-dev] [Bug 216050] " bugzilla-daemon
2022-05-30 23:47 ` bugzilla-daemon
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2022-05-31 18:15 ` [f2fs-dev] [Bug 216050] f2fs_gc " bugzilla-daemon
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