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From: Mark Nelson <mark.nelson@inktank.com>
To: Tommi Virtanen <tv@inktank.com>
Cc: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: Ceph performance on Ubuntu Oneiric vs Ubuntu Precise
Date: Mon, 18 Jun 2012 13:17:47 -0500	[thread overview]
Message-ID: <4FDF70CB.2000903@inktank.com> (raw)
In-Reply-To: <CADvuQREzVbnw5xFSJLx5CSDPXdZOhOpHLHGr-CFYmtRWJmxZYQ@mail.gmail.com>

On 06/18/2012 01:12 PM, Tommi Virtanen wrote:
> On Mon, Jun 18, 2012 at 10:56 AM, Mark Nelson<mark.nelson@inktank.com>  wrote:
>> I've been tracking down some performance issues over the past month with our
>> internal test nodes and believe I have narrowed it down to something related
>> to Ubuntu Oneiric.  Tests done on nodes running Ubuntu Precise are
>> significantly faster.
>
> Did you use Ubuntu kernels or our own builds? Different/same across runs?

Each set of nodes is using our kernel from gitbuilder:

http://gitbuilder.ceph.com/kernel-deb-oneiric-x86_64-basic/ref/v3.4/

and

http://gitbuilder.ceph.com/kernel-deb-precise-x86_64-basic/ref/v3.4/

respectively.

I should note that this problem was also seen on kernel 3.3 from 
gitbuilder with oneiric, though I do not have comparative numbers available.

Mark

      reply	other threads:[~2012-06-18 18:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-18 17:56 Ceph performance on Ubuntu Oneiric vs Ubuntu Precise Mark Nelson
2012-06-18 18:04 ` Gregory Farnum
2012-06-18 18:07   ` Mark Nelson
2012-06-18 18:12 ` Tommi Virtanen
2012-06-18 18:17   ` Mark Nelson [this message]

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