Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 23 Oct 2002 09:29:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 23 Oct 2002 09:29:16 -0400 Received: from 213-187-164-2.dd.nextgentel.com ([213.187.164.2]:62358 "EHLO mail.pronto.tv") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Wed, 23 Oct 2002 09:29:15 -0400 Content-Type: text/plain; charset=US-ASCII From: Roy Sigurd Karlsbakk Organization: ProntoTV AS To: "David S. Miller" , bert hubert Subject: Re: [RESEND] tuning linux for high network performance? Date: Wed, 23 Oct 2002 15:42:48 +0200 User-Agent: KMail/1.4.1 Cc: netdev@oss.sgi.com, Kernel mailing list References: <200210231218.18733.roy@karlsbakk.net> <20021023130101.GA646@outpost.ds9a.nl> <1035379308.5950.3.camel@rth.ninka.net> In-Reply-To: <1035379308.5950.3.camel@rth.ninka.net> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <200210231542.48673.roy@karlsbakk.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 768 Lines: 25 > The e1000 can very well do hardware checksumming on transmit. > > The missing piece of the puzzle is that his application is not > using sendfile(), without which no transmit checksum offload > can take place. As far as I've understood, sendfile() won't do much good with large files. Is this right? We're talking of 3-6GB files here ... roy -- Roy Sigurd Karlsbakk, Datavaktmester ProntoTV AS - http://www.pronto.tv/ Tel: +47 9801 3356 Computers are like air conditioners. They stop working when you open Windows. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/