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Date:      Sat, 22 May 2021 21:13:52 +0200
From:      Michael Gmelin <freebsd@grem.de>
To:        tech-lists <tech-lists@zyxst.net>
Cc:        freebsd-current@freebsd.org
Subject:   Re: tuning a zfs-mounted /var
Message-ID:  <B961A8FE-CE78-4490-8E6D-1EBD771629D1@grem.de>
In-Reply-To: <YKlNQG%2BAk0gsjebb@ceres.zyxst.net>
References:  <YKlNQG%2BAk0gsjebb@ceres.zyxst.net>

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> On 22. May 2021, at 20:32, tech-lists <tech-lists@zyxst.net> wrote:
>=20
> =EF=BB=BFHi,
>=20
> What options could one pass to zfs to speed it up to characteristics
> favourable to what's usually in /var ? Like lots of fast writes, lots of
> files smaller than what's on /usr, lots of file creation and deletion
> but also quite a few files that might become large, like what's in
> /var/log, things like that.
>=20

Make sure your pool (or at least the /var file system) has compression=3Dlz4=
 and that atime is off, beyond that I wouldn=E2=80=99t bother to try to opti=
mize manually there, unless you run a database like MySQL in /var/db/=E2=80=A6=
, in which case setting a fixed record size might make sense.

Best
Michael


> thanks,
> --=20
> J.




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