From: Tomasz Torcz <tomek@pipebreaker.pl>
To: linux-btrfs@vger.kernel.org
Subject: Re: yum upgrade on btrfs very slow
Date: Tue, 29 Sep 2009 08:18:22 +0200 [thread overview]
Message-ID: <20090929061822.GB15930@mother.pipebreaker.pl> (raw)
In-Reply-To: <20090928133543.GB6405@think>
On Mon, Sep 28, 2009 at 09:35:43AM -0400, Chris Mason wrote:
> On Mon, Sep 28, 2009 at 02:18:27PM +0200, Tomasz Torcz wrote:
> >
> > Hi,
> >
> > I'm using btrfs as rootfs on my Fedora 12 (rawhide) test system.
> > Every yum activity is very slow, like 15 minutes for installation of 11
> > packages 25MB in size. Kernel is 2.6.31.1-48.fc12.x86_64, btrfs-progs-0.19-7.fc12.x86_64.
> > Hardware is pentium 4 3.0 GHz (Hyperthreading, 64 bit), with single IDE disk
> > on Intel ICH controller.
>
> You're doing quite a lot of reads, and some writes. Could you please
> capture the output of sysrq-w at 5s intervals during the upgrade?
It got quite big (over 100 KiB, over 1 MiB after unpacking), so I
put it at http://pipebreaker.pl/dump/sysrq-w_every_5_sec.txt.bz2
--
Tomasz Torcz Only gods can safely risk perfection,
xmpp: zdzichubg@chrome.pl it's a dangerous thing for a man. -- Alia
next prev parent reply other threads:[~2009-09-29 6:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-28 12:18 yum upgrade on btrfs very slow Tomasz Torcz
2009-09-28 13:35 ` Chris Mason
2009-09-29 6:18 ` Tomasz Torcz [this message]
2009-09-29 13:25 ` Chris Mason
2009-09-30 19:43 ` Tomasz Torcz
2009-10-01 9:01 ` Tomasz Torcz
2009-10-21 9:27 ` Tomasz Torcz
2009-10-26 8:55 ` Chris Mason
2009-10-26 13:35 ` Tomasz Torcz
2009-10-01 9:04 ` Jens Axboe
2009-10-05 12:09 ` Ric Wheeler
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