Date: Sun, 9 Feb 2014 19:49:06 +0100
From: Borislav Petkov <bp@alien8.de>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Daniel Exner <dex@dragonslave.de>, linux-kernel@vger.kernel.org,
        netdev@vger.kernel.org
Subject: Re: Poor network performance x86_64.. also with 3.13
Message-ID: <20140209184906.GC8487@pd.tnic>
References: <52DAD66F.7080306@dragonslave.de>
 <20140118195026.GA15543@pd.tnic>
 <52DB0439.2060905@dragonslave.de>
 <52DDA2CD.9040001@dragonslave.de>
 <20140120223752.GA3057@pd.tnic>
 <20140209160511.2f67866f@Mycroft>
 <20140209153107.GA8614@pd.tnic>
 <1391969674.10160.134.camel@edumazet-glaptop2.roam.corp.google.com>
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Sender: linux-kernel-owner@vger.kernel.org

On Sun, Feb 09, 2014 at 10:14:34AM -0800, Eric Dumazet wrote:
> tcp_rmem[2] = 16777
> 
> Come on, the 640KB barrier was broken a long time ago ;)
> 
> Feel free to investigate, I wont ;)

Me too - it's not like I don't have anything else to do. :-)

I was just wondering why 3.10 was fine even with these settings and 3.12
wasn't. Here's the original report:

"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."

Link: http://lkml.kernel.org/r/52DAD66F.7080306@dragonslave.de

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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