From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932445AbWFSORO (ORCPT ); Mon, 19 Jun 2006 10:17:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932395AbWFSORO (ORCPT ); Mon, 19 Jun 2006 10:17:14 -0400 Received: from wr-out-0506.google.com ([64.233.184.236]:2518 "EHLO wr-out-0506.google.com") by vger.kernel.org with ESMTP id S932445AbWFSORN (ORCPT ); Mon, 19 Jun 2006 10:17:13 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=A6mw5bhykqwpNtLjRWv1Lm22s/5IcDO1GT97x8EcSG5OHNm0aX6MC4kAjVLyg+43XCoe0b5LpN9vWwqd4NGEpzuA80yC3VwE02BpOrEazKHOxXUiinXG6S6/2HUgBB1RyqukVKOm3x//V7dIy8HtHcjcDPj2k3w/H/IpwhBVZsw= Message-ID: <65258a580606190717t2cc5b28eg10fb4d64fe5ec1f3@mail.gmail.com> Date: Mon, 19 Jun 2006 16:17:12 +0200 From: "Vincent Vanackere" To: "Brice Figureau" Subject: Re: 2.6.17: slow (as hell) tcp inbound transfers Cc: linux-kernel@vger.kernel.org In-Reply-To: <1150725598.4985.27.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1150725598.4985.27.camel@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 6/19/06, Brice Figureau wrote: > Hi, > > First: please CC: me as I'm not subscribed to the list. > > Now to the problem: I just finished the installation of a brand new > 2.6.17 on a Dell PowerEdge 2850 which was running 2.6.16.19 really fine, > and I'm encountering a strange issue. > > It seems that TCP inbound transfers (using either curl, or scp) are > really slow except when issued on our gigabit LAN. Could you try the following to see if it cures your problem ? echo 0 > /proc/sys/net/ipv4/tcp_window_scaling Vincent