Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261568AbVBHRFk (ORCPT ); Tue, 8 Feb 2005 12:05:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261574AbVBHRFk (ORCPT ); Tue, 8 Feb 2005 12:05:40 -0500 Received: from mail.autoweb.net ([198.172.237.26]:260 "EHLO mail.autoweb.net") by vger.kernel.org with ESMTP id S261568AbVBHRFb (ORCPT ); Tue, 8 Feb 2005 12:05:31 -0500 Date: Tue, 8 Feb 2005 12:04:01 -0500 From: Ryan Anderson To: Matthew Wilcox Cc: Roman Zippel , Sam Ravnborg , Kai Germaschewski , linux-kernel@vger.kernel.org, dholland@eecs.harvard.edu Subject: Re: [PATCH] Makefiles are not built using a Fortran compiler Message-ID: <20050208170401.GB7828@mythryan2.michonline.com> Mail-Followup-To: Matthew Wilcox , Roman Zippel , Sam Ravnborg , Kai Germaschewski , linux-kernel@vger.kernel.org, dholland@eecs.harvard.edu References: <20050208030228.GE20386@parcelfarce.linux.theplanet.co.uk> <20050208154417.GH20386@parcelfarce.linux.theplanet.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050208154417.GH20386@parcelfarce.linux.theplanet.co.uk> User-Agent: Mutt/1.5.6+20040907i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1707 Lines: 42 On Tue, Feb 08, 2005 at 03:44:17PM +0000, Matthew Wilcox wrote: > On Tue, Feb 08, 2005 at 01:23:48PM +0100, Roman Zippel wrote: > > Enabling the following in the Makefile should have the same effect: > > > > # For maximum performance (+ possibly random breakage, uncomment > > # the following) > > > > #MAKEFLAGS += -rR > > This reduces the debug output even further (and size of debug output is > strongly correlated with time taken to do a null build): > > -rw-r--r-- 1 willy willy 65582214 2005-02-07 21:13 vanilla.debug > -rw-r--r-- 1 willy willy 51413770 2005-02-07 22:17 nosuffixes.debug > -rw-r--r-- 1 willy willy 37245484 2005-02-08 09:56 maxperf.debug > > Seems like it gets rid of the RCS and SCCS rules -- certainly a big > improvement, and I'm not sure anyone really uses those rules. Can we > perhaps uncomment this line at the beginning of 2.6.12 and see if anyone > complains? This should reduce make overhead by 30-40% which is really > worth doing. The BitKeeper users sometimes make use of the SCCS rules. BK installs itself in such a way as to provide the SCCS commands, and Make will update things if you forget to do a bk -r get -Sq after a pull. >From a totally clean tree, this doesn't work (I forget why, offhand, but I think it's something to do with the *config targets), but it is helpful at times from partially clean trees to automatically "get" from the SCCS copy of the file. -- Ryan Anderson sometimes Pug Majere - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/