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Date:      Mon, 04 Oct 2021 09:20:41 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 258777] System freezing for minutes when deleting a large file
Message-ID:  <bug-258777-227-XVFt4LsYh1@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-258777-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-258777-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258777

Gian-Simon Purkert <gspurki@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |gspurki@gmail.com

--- Comment #3 from Gian-Simon Purkert <gspurki@gmail.com> ---
Continuous trim (on zfs and ufs) comes sometimes with a large, and
unpredictable performance impact (same on linux with xfs[1]).

However trim on freebsd is extremely slow compared to..well everything else
(1.5 h for my 250GB SSD)

A cronjob (outside busy-hours) with something like "fstrim -v /" worked bet=
ter
for me.

[1] https://xfs.org/index.php/FITRIM/discard

>There can be a severe performance penalty for enabling realtime discard.

--=20
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