From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161077AbWFVLbt (ORCPT ); Thu, 22 Jun 2006 07:31:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161080AbWFVLbt (ORCPT ); Thu, 22 Jun 2006 07:31:49 -0400 Received: from web33304.mail.mud.yahoo.com ([68.142.206.119]:6511 "HELO web33304.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S1161077AbWFVLbs (ORCPT ); Thu, 22 Jun 2006 07:31:48 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=os+5WKM0BXxfj5C/0Bz3vi51Aqasx6ufWtQWuEjuDv6SMcYgHybFVdF779Q5qjuTi0JtAmm51FQt3yF2pwPBpCJ5ccVfDOPlSFTq/7gx0iDoZV3PkdZhMtrxo+BqgzKUgK4LL8M60LUHxJ15u3t8ojtJNYbE4XSooAxCNdNL/UE= ; Message-ID: <20060622113147.3496.qmail@web33304.mail.mud.yahoo.com> Date: Thu, 22 Jun 2006 04:31:47 -0700 (PDT) From: Danial Thom Reply-To: danial_thom@yahoo.com Subject: Dropping Packets in 2.6.17 To: linux-kernel@vger.kernel.org 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 I'm trying to make a case for using linux as a network appliance, but I can't find any combination of settings that will keep it from dropping packets at an unacceptably high rate. The test system is a 1.8Ghz Opteron with intel gigE cards running 2.6.17. I'm passing about 70K pps through the box, which is a light load, but userland activities (such as building a kernel) cause it to lose packets, even with backlog set to 20000. I had the same problem with 2.6.12 and abandoned the effort. Has anything been done since to give priority to networking? You can't have a network appliance drop packets when some application is gathering stats or a user is looking at a graph. What tunings are available? DT __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com