From mboxrd@z Thu Jan  1 00:00:00 1970
From: eric.dumazet@gmail.com (Eric Dumazet)
Date: Wed, 20 Nov 2013 09:40:22 -0800
Subject: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s
In-Reply-To: <20131120173436.GK8581@1wt.eu>
References: <slrnl83jr5.49f.xiyou.wangcong@linux-6brj.site>
 <87y54u59zq.fsf@natisbad.org> <20131112083633.GB10318@1wt.eu>
 <87a9hagex1.fsf@natisbad.org> <20131112100126.GB23981@1wt.eu>
 <87vbzxd473.fsf@natisbad.org> <20131113072257.GB10591@1wt.eu>
 <20131117141940.GA18569@1wt.eu>
 <1384710098.8604.58.camel@edumazet-glaptop2.roam.corp.google.com>
 <20131120171227.GG8581@1wt.eu> <20131120173436.GK8581@1wt.eu>
Message-ID: <1384969222.10637.20.camel@edumazet-glaptop2.roam.corp.google.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Wed, 2013-11-20 at 18:34 +0100, Willy Tarreau wrote:

> One important point, I was looking for the other patch you pointed
> in this long thread and finally found it :
> 
> > So
> > http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=98e09386c0ef4dfd48af7ba60ff908f0d525cdee
> > 
> > restored this minimal amount of buffering, and let the bigger amount for
> > 40Gb NICs ;)
> 
> This one definitely restores original performance, so it's a much better
> bet in my opinion :-)

I don't understand. I thought you were using this patch.

I guess we are spending time on a already solved problem.