From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758712Ab2CBM2U (ORCPT ); Fri, 2 Mar 2012 07:28:20 -0500 Received: from mail-pz0-f46.google.com ([209.85.210.46]:64785 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754352Ab2CBM2S (ORCPT ); Fri, 2 Mar 2012 07:28:18 -0500 Authentication-Results: mr.google.com; spf=pass (google.com: domain of eric.dumazet@gmail.com designates 10.68.130.72 as permitted sender) smtp.mail=eric.dumazet@gmail.com; dkim=pass header.i=eric.dumazet@gmail.com Message-ID: <1330691295.2469.1.camel@edumazet-laptop> Subject: Re: TCP_STREAM performance regression on commit b3613118 From: Eric Dumazet To: Alex Shi Cc: David Miller , feng.tang@intel.com, linux-kernel@vger.kernel.org, tim.c.chen@intel.com, ying.huang@intel.com, netdev@vger.kernel.org Date: Fri, 02 Mar 2012 04:28:15 -0800 In-Reply-To: <1330670277.21053.1448.camel@debian> References: <1329472239.2861.3.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <20120217.133327.1178765872497293871.davem@davemloft.net> <1330656317.21053.1411.camel@debian> <20120301.220743.2174015405223036036.davem@davemloft.net> <1330670277.21053.1448.camel@debian> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.2- Content-Transfer-Encoding: 8bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le vendredi 02 mars 2012 à 14:37 +0800, Alex Shi a écrit : > On Thu, 2012-03-01 at 22:07 -0500, David Miller wrote: > > From: Alex Shi > > Date: Fri, 02 Mar 2012 10:45:17 +0800 > > > > > Add CC to tang feng, He is working on this issue. > > > > Is he? I'm pretty sure this is due to the TCP receive window growing > > issue Eric Dumazet, Neal Cardwell and I are discussing in the thread > > starting at: > > > > http://marc.info/?l=linux-netdev&m=132916352815286&w=2 > > That's great! > May my language make you confusing. Actually, Feng is doing > investigation on this issue. Since you fund out the reason, it saved his > work. :) > Actually it would be great if you or Feng could post the exact tests done and numbers so that we can make sure this is the tracked issue. Thanks