Subject: Re: WANTED: kernel projects for CS students
From: Xavier Bestel <xavier.bestel@free.fr>
To: Philippe Elie <phil.el@wanadoo.fr>
Cc: Sam Ravnborg <sam@ravnborg.org>, Rik van Riel <riel@surriel.com>,
       linux-kernel@vger.kernel.org
In-Reply-To: <20071015163655.GB2884@zaniah>
References: <20071014190128.6e3cdb44@bree.surriel.com>
	 <20071015142352.GA21259@uranus.ravnborg.org> <20071015163154.GA2884@zaniah>
	 <20071015163655.GB2884@zaniah>
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Date: Mon, 15 Oct 2007 18:53:57 +0200
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On Mon, 2007-10-15 at 18:36 +0200, Philippe Elie wrote:
> > > Increase speed for a build with no updates
> > > ==========================================
> > > On a resonably fast machine with a decent config it takes
> > > roughly 10 seconds to do a make where nothing is updated.
> > > Generating one single Makefile is assumed to speed up things
> > > and will in addition allow a simpler syntax as what is used today
> > > for some of the uglier constructs.
> > > 
> > > Contact: Sam Ravnborg <sam@ravnborg.org>
> > > Difficulty: 5
> > > Language: Perl or C
> > 
> > Isn't make -j 2 or more implemented by running multiple make in sub-dirs ?
> > Parallel make is more and more used even on cheap hardware.
> 
> Errm, I misread what you said, it can be a single Makefile in each sub-dirs

make -j works fine with an unique Makefile, if that's the question.

	Xav


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