From owner-cvs-all@FreeBSD.ORG Wed Oct 20 20:39:18 2004 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2C25016A4D1 for ; Wed, 20 Oct 2004 20:39:18 +0000 (GMT) Received: from mail4.speakeasy.net (mail4.speakeasy.net [216.254.0.204]) by mx1.FreeBSD.org (Postfix) with ESMTP id BB39143D5D for ; Wed, 20 Oct 2004 20:39:17 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 11224 invoked from network); 20 Oct 2004 20:39:17 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 20 Oct 2004 20:39:17 -0000 Received: from [10.50.41.228] (gw1.twc.weather.com [216.133.140.1]) (authenticated bits=0) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id i9KKdD2Q060189; Wed, 20 Oct 2004 16:39:13 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: Pawel Jakub Dawidek Date: Wed, 20 Oct 2004 16:30:41 -0400 User-Agent: KMail/1.6.2 References: <4175B591.4090407@elischer.org> <200410201553.40823.jhb@FreeBSD.org> <20041020202004.GM73767@darkness.comp.waw.pl> In-Reply-To: <20041020202004.GM73767@darkness.comp.waw.pl> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200410201630.41500.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: Daniel Eischen cc: src-committers@FreeBSD.org cc: cvs-all@FreeBSD.org cc: Julian Elischer cc: obrien@FreeBSD.org Subject: Re: cvs commit: src/lib/libc/i386/net htonl.S ntohl.S X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Oct 2004 20:39:18 -0000 On Wednesday 20 October 2004 04:20 pm, Pawel Jakub Dawidek wrote: > On Wed, Oct 20, 2004 at 03:53:40PM -0400, John Baldwin wrote: > +> For 6.0 we are (finally!) going to just drop 80386 altogether. I've > been +> wanting to do this personally since early SMPng days, but we came > to an +> agreement back then and since we've already gone and branched > RELENG_5 and +> frozen the ABI I think we should stick to the previously > agreed-upon plan. > > So maybe it is good time to think about 486 in 6.x. > I don't know how much can we get from dropping support for 486, but maybe > it's worth it. > Before the next war will start, the good argument for me is, that > FreeBSD 5.x is still going to work on 486 and we should move on. There's not a whole lot to gain from dropping 486. 486 added cmpxchg (biggie for SMP stuff), invlpg (better TLB shootdowns), bswap, and a few other odds and ends. The changes that later processors bring are less dramatic and more specialized, so it's less of an issue. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org