From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265108AbUGTCWX (ORCPT ); Mon, 19 Jul 2004 22:22:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265141AbUGTCWX (ORCPT ); Mon, 19 Jul 2004 22:22:23 -0400 Received: from mx1.redhat.com ([66.187.233.31]:21451 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S265108AbUGTCWW (ORCPT ); Mon, 19 Jul 2004 22:22:22 -0400 Date: Mon, 19 Jul 2004 19:18:50 -0700 From: "David S. Miller" To: Maciej Soltysiak Cc: linux-kernel@vger.kernel.org Subject: Re: Re[3]: tcp_window_scaling degrades performance Message-Id: <20040719191850.75256ebe.davem@redhat.com> In-Reply-To: <1408328554.20040716160157@dns.toxicfilms.tv> References: <2igbK-82L-13@gated-at.bofh.it> <505216170.20040716122132@dns.toxicfilms.tv> <1408328554.20040716160157@dns.toxicfilms.tv> X-Mailer: Sylpheed version 0.9.12 (GTK+ 1.2.10; sparc-unknown-linux-gnu) X-Face: "_;p5u5aPsO,_Vsx"^v-pEq09'CU4&Dc1$fQExov$62l60cgCc%FnIwD=.UF^a>?5'9Kn[;433QFVV9M..2eN.@4ZWPGbdi<=?[:T>y?SD(R*-3It"Vj:)"dP Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 16 Jul 2004 16:01:57 +0200 Maciej Soltysiak wrote: > I seem to have isolated the changeset that causes my machines to have > very slow throughput, even as low as 2kB/s when tcp_window_scaling is > enabled. The change is valid, firewalls are just corrupting the connection when window scaling is in use which is a valid RFC standard TCP feature. Please, get the firewall fixed.