From mboxrd@z Thu Jan 1 00:00:00 1970 From: Howard Chu Subject: Re: TCP 2MSL on loopback Date: Tue, 06 Mar 2007 15:22:37 -0800 Message-ID: <45EDF7BD.9060402@symas.com> References: <45EDD17F.5000203@cosmosbay.com> <45EDD791.4040908@symas.com> <45EDDC4F.7010201@hp.com> <20070306.133516.104036428.davem@davemloft.net> <45EDE60D.1030706@symas.com> <20070306145403.6be2c437@freekitty> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Cc: David Miller , rick.jones2@hp.com, dada1@cosmosbay.com, netdev@vger.kernel.org To: Stephen Hemminger Return-path: Received: from highlandsun.propagation.net ([66.221.212.168]:2521 "EHLO highlandsun.propagation.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030685AbXCFX22 (ORCPT ); Tue, 6 Mar 2007 18:28:28 -0500 In-Reply-To: <20070306145403.6be2c437@freekitty> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Stephen Hemminger wrote: > TCP can not assume anything about the path that a packet may take. > We have declared a moratorium on loopback benchmark foolishness. > Go optimize the idle loop instead ;-) Sure - A delay loop with fewer instructions is a worthwhile optimization because it has less impact on a CPU's instruction cache... -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc Chief Architect, OpenLDAP http://www.openldap.org/project/