From owner-freebsd-arch@FreeBSD.ORG Tue Feb 3 16:23:16 2009 Return-Path: Delivered-To: arch@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7DFB41065980 for ; Tue, 3 Feb 2009 16:23:16 +0000 (UTC) (envelope-from obrien@NUXI.org) Received: from dragon.nuxi.org (trang.nuxi.org [74.95.12.85]) by mx1.freebsd.org (Postfix) with ESMTP id 5F69A8FC16 for ; Tue, 3 Feb 2009 16:23:16 +0000 (UTC) (envelope-from obrien@NUXI.org) Received: from dragon.nuxi.org (obrien@localhost [127.0.0.1]) by dragon.nuxi.org (8.14.2/8.14.2) with ESMTP id n13GN9uU036709; Tue, 3 Feb 2009 08:23:10 -0800 (PST) (envelope-from obrien@dragon.nuxi.org) Received: (from obrien@localhost) by dragon.nuxi.org (8.14.2/8.14.2/Submit) id n13GN9Br036708; Tue, 3 Feb 2009 08:23:09 -0800 (PST) (envelope-from obrien) Date: Tue, 3 Feb 2009 08:23:09 -0800 From: "David O'Brien" To: "M. Warner Losh" Message-ID: <20090203162309.GD33520@dragon.NUXI.org> Mail-Followup-To: obrien@freebsd.org, "M. Warner Losh" , arch@FreeBSD.org References: <20090202220628.GA76833@dragon.NUXI.org> <9061.1233646810@critter.freebsd.dk> <20090203154013.GA33520@dragon.NUXI.org> <20090203.085631.-2006820702.imp@bsdimp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090203.085631.-2006820702.imp@bsdimp.com> X-Operating-System: FreeBSD 8.0-CURRENT User-Agent: Mutt/1.5.16 (2007-06-09) Cc: arch@FreeBSD.org Subject: Re: svn commit: r187132 - head/usr.bin/make X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: obrien@FreeBSD.org List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Feb 2009 16:23:17 -0000 On Tue, Feb 03, 2009 at 08:56:31AM -0700, M. Warner Losh wrote: > In message: <20090203154013.GA33520@dragon.NUXI.org> > "David O'Brien" writes: > : Warner made a baseless 10% performance claim and used it as the > : bases for a commit. > > The claim was not baseless. It merely reflects results that were > old. Where were the runtime numbers? The standard deviation? Ministat output? Details of the machine run on? Information on the storage. You finally mentioned this was on FreeBSD 4.x, 5.2, and 6.0 build machines. A lot has changed since November 2005. And you were timing non-j build's - yet your change was all about parallel builds, it only affected 'make -j'. -- -- David (obrien@FreeBSD.org)