linux-kernel - Poor network performance x86

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Message-ID: <52DDA2CD.9040001@dragonslave.de>
Date:	Mon, 20 Jan 2014 23:27:25 +0100
From:	Daniel Exner <dex@...gonslave.de>
To:	Borislav Petkov <bp@...en8.de>
CC:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Poor network performance x86_64.. also with 3.13

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Hi,

Am 18.01.2014 23:46, schrieb Daniel Exner:
> Hi again,
> 
> Am 18.01.2014 20:50, schrieb Borislav Petkov:
>> + netdev.
> Thx
> 
> Am 18.01.2014 20:49, schrieb Holger Hoffstätte:> [This mail was
> also posted to gmane.linux.kernel.]
> 
>> 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
> 
> Tried that. Even 10 times the value. Same effect.


I just did the same procedure with Kernel Version 3.13: same poor rates.

I think I will try to see of 3.12.6 was still ok and bisect from there.

Greetings
Daniel
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