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From: Holger =?iso-8859-1?q?Hoffst=E4tte?= 
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Subject: Re: 3.12.8 poor network performance x86_64
Date: Sat, 18 Jan 2014 19:49:38 +0000 (UTC)
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On Sat, 18 Jan 2014 20:30:55 +0100, Daniel Exner wrote:

> I recently upgraded the Kernel from version 3.10 to latest stable
> 3.12.8, did the usual "make oldconfig" (resulting config attached).
> 
> But now I noticed some _really_ low network performance.

Try: sysctl net.ipv4.tcp_limit_output_bytes=262144

Holger