From: Mark Nelson <mark.nelson@inktank.com>
To: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
Cc: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: stable 10GBE under 3.4.2 or 3.5.0-rc2
Date: Mon, 18 Jun 2012 08:56:36 -0500 [thread overview]
Message-ID: <4FDF3394.3000107@inktank.com> (raw)
In-Reply-To: <4FDEDB7F.4070600@profihost.ag>
On 6/18/12 2:40 AM, Stefan Priebe - Profihost AG wrote:
> Hi list,
>
> i've still problems with stable network speed under recent kernels. With
> 3.0.32 i get stable 9.90 Gbit/s in both directions. With 3.4.2 or
> 3.5.0-rc2 it drops sometimes down to around 1 Gbit/s. Sadly i've no idea
> when this happen? It works sometimes for minutes at 9.9Gbit/s and then
> suddently only with 3-4Gbit/s or even 1Gbit/s using recent kernels.
>
> I'm using various tunings recommanded by intel (Improving Performance)
> => http://downloadmirror.intel.com/5874/eng/README.txt
>
Hi Stefan,
Did you ever get a chance to talk to Jason Wang about the commit that
was causing the problems? It might be a good idea to report all of this
upstream and see what they have to say.
Mark
next prev parent reply other threads:[~2012-06-18 13:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-18 7:40 stable 10GBE under 3.4.2 or 3.5.0-rc2 Stefan Priebe - Profihost AG
2012-06-18 8:11 ` Alexandre DERUMIER
2012-06-18 9:11 ` Stefan Priebe - Profihost AG
2012-06-18 9:21 ` Alexandre DERUMIER
2012-06-18 9:25 ` Stefan Priebe - Profihost AG
2012-06-18 9:27 ` Alexandre DERUMIER
2012-06-18 13:56 ` Mark Nelson [this message]
2012-06-18 14:03 ` Stefan Priebe - Profihost AG
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