From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 25 Feb 2002 22:19:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 25 Feb 2002 22:19:31 -0500 Received: from zero.tech9.net ([209.61.188.187]:46855 "EHLO zero.tech9.net") by vger.kernel.org with ESMTP id ; Mon, 25 Feb 2002 22:19:18 -0500 Subject: Re: Submissions for 2.4.19-pre [x86 Syscall Optimizations (Alexander Khripin)] From: Robert Love To: Michael Cohen Cc: Alan Cox , linux-kernel@vger.kernel.org, marcelo@conectiva.com.br In-Reply-To: <20020225213255.2b403560.me@ohdarn.net> In-Reply-To: <20020225210721.2ffa8fb1.me@ohdarn.net> <20020225213255.2b403560.me@ohdarn.net> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Evolution/1.0.2 Date: 25 Feb 2002 22:19:17 -0500 Message-Id: <1014693559.883.5.camel@phantasy> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2002-02-25 at 21:32, Michael Cohen wrote: > > Alan Cox wrote: > > > Credit for the originator and an explanation would be helpful > > See Subject ^^ Alexander Khripin. Looks to me like it improves latency > quite a bit during syscalls. I'm unable to find the exact mail but I > believe I was referred to this particular patch by someone on lkml. Eh? The patch doesn't do anything but move movl ops around. I suspect the intention may to eliminate datapath stalls, which may be a fine micro-optimization, but I think we need some numbers first ... Robert Love