From: Chris Mason <chris.mason@oracle.com>
To: Martin Mailand <martin@tuxadero.com>
Cc: Josef Bacik <josef@redhat.com>, Christian Brunner <chb@muc.de>,
linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org
Subject: Re: Btrfs slowdown with ceph (how to reproduce)
Date: Tue, 24 Jan 2012 14:40:44 -0500 [thread overview]
Message-ID: <20120124194044.GI4387@shiny> (raw)
In-Reply-To: <4F1F036E.9030801@tuxadero.com>
On Tue, Jan 24, 2012 at 08:15:58PM +0100, Martin Mailand wrote:
> Hi
> I tried the branch on one of my ceph osd, and there is a big
> difference in the performance.
> The average request size stayed high, but after around a hour the
> kernel crashed.
>
> IOstat
> http://pastebin.com/xjuriJ6J
>
> Kernel trace
> http://pastebin.com/SYE95GgH
Aha, this I know how to fix. Thanks for trying it out.
-chris
next prev parent reply other threads:[~2012-01-24 19:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-20 12:13 Btrfs slowdown with ceph (how to reproduce) Christian Brunner
2012-01-23 18:19 ` Josef Bacik
2012-01-23 18:50 ` Chris Mason
2012-01-23 20:53 ` Christian Brunner
2012-01-23 20:53 ` Christian Brunner
2012-01-24 19:15 ` Martin Mailand
2012-01-24 19:40 ` Chris Mason [this message]
2012-01-24 20:55 ` Martin Mailand
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120124194044.GI4387@shiny \
--to=chris.mason@oracle.com \
--cc=ceph-devel@vger.kernel.org \
--cc=chb@muc.de \
--cc=josef@redhat.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=martin@tuxadero.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.