From owner-freebsd-sparc64@FreeBSD.ORG Wed Aug 13 09:38:30 2003 Return-Path: Delivered-To: freebsd-sparc64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5CF1837B401 for ; Wed, 13 Aug 2003 09:38:30 -0700 (PDT) Received: from mail.gmx.net (imap.gmx.net [213.165.64.20]) by mx1.FreeBSD.org (Postfix) with SMTP id B429443F75 for ; Wed, 13 Aug 2003 09:38:28 -0700 (PDT) (envelope-from tmoestl@gmx.net) Received: (qmail 31959 invoked by uid 65534); 13 Aug 2003 16:38:27 -0000 Received: from p508E7660.dip.t-dialin.net (EHLO galatea.local) (80.142.118.96) by mail.gmx.net (mp022) with SMTP; 13 Aug 2003 18:38:27 +0200 Received: from tmm by galatea.local with local (Exim 4.20 #1) id 19mydt-000HBd-8D; Wed, 13 Aug 2003 18:38:33 +0200 Date: Wed, 13 Aug 2003 18:38:32 +0200 From: Thomas Moestl To: harti@freebsd.org Message-ID: <20030813163832.GA779@crow.dom2ip.de> Mail-Followup-To: harti@freebsd.org, Steve Ames , sparc64@freebsd.org References: <20030807062536.GA68747@dragon.nuxi.com> <20030812213355.M22214@seekingfire.com> <20030813154823.GA99828@energistic.com> <20030813155523.GB99828@energistic.com> <20030813175634.P97608@beagle.fokus.fraunhofer.de> <001501c361b4$f84e6280$2bd90c42@officescape.net> <20030813180823.W97608@beagle.fokus.fraunhofer.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030813180823.W97608@beagle.fokus.fraunhofer.de> User-Agent: Mutt/1.4.1i Sender: Thomas Moestl cc: Steve Ames cc: sparc64@freebsd.org Subject: Re: ponderous 'make world' times post GCC 3.3... X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Aug 2003 16:38:30 -0000 On Wed, 2003/08/13 at 18:12:09 +0200, Harti Brandt wrote: > On Wed, 13 Aug 2003, Steve Ames wrote: > > SA> > SA>----- Original Message ----- > SA>From: "Harti Brandt" > SA>> I have actually two machines and two kernels: one machine runs with > SA>> WITNESS and DIAGNOSTICS and the other without that. On both machines > SA>> the current kernel is three times slower than the old kernel. Of course > SA>> the debugging kernels are even slower than the non-debugging ones. But, > SA>> the three times ratio between old and new kernels is the same on both > SA>> machines. > SA> > SA>Ah. Well that blows my theory :) However... in January my system took around > SA>4 hours to do 'make world' and it still does with today's code (if I don't > SA>have > SA>debug options turned on). So I'm not sure there is a global 3x increase. > > Well, you're the 2nd one who reports that nothing has changed. Several > people however report, that they see the 3x increase. And I see it myself, > no matter how often I look at this. Today I tried to build the vinum > module: > > gcc-3.3.1 yesterday's kernel 132 + 85 + 20 > gcc-3.2.2 yesterday's kernel 131 + 85 + 22 > gcc-3.2.2 kernel from June 1st 52 + 27 + 7 > > Exactly the same config and the same world (except for gcc). > > This is an Ultra10. Perhaps it depends on the sparc model? FWIW, I'm not seeing this either on my Blade 100; with kernels from Jun 1 and Aug 11, both built with gcc 3.3.1, a complete kernel build takes the same time down to a few seconds. I'm running world builds right now. It would be very interesting if you could narrow the change down to a shorter time span by binary search. - Thomas -- Thomas Moestl http://www.tu-bs.de/~y0015675/ http://people.FreeBSD.org/~tmm/ PGP fingerprint: 1C97 A604 2BD0 E492 51D0 9C0F 1FE6 4F1D 419C 776C