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From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: stable 10GBE under 3.4.2 or 3.5.0-rc2
Date: Mon, 18 Jun 2012 09:40:47 +0200	[thread overview]
Message-ID: <4FDEDB7F.4070600@profihost.ag> (raw)

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

Has anybody a hint for me or additional settings intel does not mention?

Stefan

             reply	other threads:[~2012-06-18  7:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-18  7:40 Stefan Priebe - Profihost AG [this message]
2012-06-18  8:11 ` stable 10GBE under 3.4.2 or 3.5.0-rc2 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
2012-06-18 14:03   ` Stefan Priebe - Profihost AG

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