netdev - Re: unstable 10GBE performance with recent kernels (> 3.0.X)

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Date:	Mon, 18 Jun 2012 12:25:43 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Stefan Priebe - Profihost AG <s.priebe@...fihost.ag>
Cc:	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: unstable 10GBE performance with recent kernels (> 3.0.X)

On Mon, 2012-06-18 at 12:05 +0200, Stefan Priebe - Profihost AG wrote:
> Am 18.06.2012 11:45, schrieb Eric Dumazet:
> > On Mon, 2012-06-18 at 11:22 +0200, Stefan Priebe - Profihost AG wrote:
> >> Hello list,
> >>
> >> i've discovered very unstable 10GBE performance using recent kernels.
> >> I'm using some optimized settings mentioned by intel here
> >> (part:Improving Performance):
> >> http://downloadmirror.intel.com/5874/eng/README.txt
> >>
> > like what settings ?
> 
> Sorry these ones:
> http://pastebin.com/raw.php?i=J2XRFAjD
> 

I would remove all this (pretty old and obsolete) stuff and use standard
params.

Only thing you could do is :

ethtool -K eth2 ntuple on

on both machines


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