From: Martin Steigerwald <Martin@lichtvoll.de>
To: linux-btrfs@vger.kernel.org
Cc: Chris Samuel <chris@csamuel.org>
Subject: Re: speeding up slow btrfs filesystem
Date: Sat, 17 Dec 2011 13:00:29 +0100 [thread overview]
Message-ID: <201112171300.29833.Martin@lichtvoll.de> (raw)
In-Reply-To: <201112172211.25456.chris@csamuel.org>
Am Samstag, 17. Dezember 2011 schrieb Chris Samuel:
> On Sat, 17 Dec 2011 04:51:51 AM Martin Steigerwald wrote:
> > Currently I have:
> >
> > deepdance:~> cat /proc/version
> > Linux version 3.0.0-2-686-pae (Debian 3.0.0-6)
>
> You are using a fairly old kernel btrfs-wise, I believe there's been
> work done in the 3.2 rc's to improve performance so I'd suggest it's
> well worth testing with 3.2-rc6 to see whether that helps.
I am now using 3.2-rc4 from Debian package already. Currently I do not
build own kernels.
I have the subjective impression that after the initial rebuild of the
inode cache it became faster.
I have the following mount options:
deepdance:~> grep btrfs /proc/mounts
/dev/mapper/deepdance-debian / btrfs rw,relatime,space_cache,inode_cache 0
0
/dev/mapper/deepdance-home /home btrfs rw,relatime,space_cache,inode_cache
0 0
Might be good to use noatime for harddisks as well.
BTW on my ThinkPad T520 I do not perceive performance issues for BTRFS as
/. But then thats located on an Intel SSD 320 where seeks should not
matter much.
Thanks,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
next prev parent reply other threads:[~2011-12-17 12:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-16 17:51 speeding up slow btrfs filesystem Martin Steigerwald
2011-12-16 17:54 ` Martin Steigerwald
2011-12-16 18:38 ` Goffredo Baroncelli
2011-12-16 19:53 ` Martin Steigerwald
2011-12-16 20:58 ` Martin Steigerwald
2011-12-17 7:03 ` Sergei Trofimovich
2011-12-17 11:09 ` Martin Steigerwald
2011-12-17 11:26 ` Hugo Mills
2011-12-17 11:38 ` Martin Steigerwald
2011-12-17 11:45 ` Hugo Mills
2011-12-17 11:57 ` Martin Steigerwald
2011-12-17 16:35 ` Martin Steigerwald
2011-12-17 17:27 ` Hugo Mills
2011-12-17 11:39 ` Goffredo Baroncelli
2011-12-18 18:41 ` Andrea Gelmini
2011-12-20 19:46 ` Goffredo Baroncelli
2011-12-17 11:11 ` Chris Samuel
2011-12-17 12:00 ` Martin Steigerwald [this message]
2011-12-17 12:42 ` David McBride
2011-12-17 16:14 ` Martin Steigerwald
-- strict thread matches above, loose matches on Subject: below --
2011-12-17 11:54 Martin Steigerwald
2011-12-17 12:02 ` Martin Steigerwald
2011-12-17 12:50 ` Goffredo Baroncelli
2011-12-17 16:10 ` Martin Steigerwald
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