From: esr@thyrsus.com
To: Michael Elizabeth Chastain <chastain@cygnus.com>
Cc: davej@suse.de, hch@caldera.de, esr@snark.thyrsus.com,
kbuild-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: [kbuild-devel] Re: CML2 1.0.0 release announcement
Date: Wed, 11 Apr 2001 17:46:09 -0400 [thread overview]
Message-ID: <20010411174609.A8410@thyrsus.com> (raw)
In-Reply-To: <200104112056.NAA20872@bosch.cygnus.com>
In-Reply-To: <200104112056.NAA20872@bosch.cygnus.com>; from chastain@cygnus.com on Wed, Apr 11, 2001 at 01:56:19PM -0700
Michael Elizabeth Chastain <chastain@cygnus.com>:
> I like mconfig, but I like CML2 better.
Reminder for the rest of you: Michael *wrote* mconfig.
> My primary reason is that ESR has more time to work on CML2 than I do
> on mconfig. And speed problems are often the easiest problems to solve.
>
> Eric did some performance analysis. If I recall correctly, all but 1
> or 2 seconds of CML2's runtime is in the parser. He has rewritten the
> parser once. Maybe someone needs to rewrite it again, maybe propagate
> some changes into the language spec to make it easier to parse, maybe
> rewrite from Python to C.
The *language compiler's* runtime got cut in half when I hand-rolled a
parser for it. The speed problem now is in the configurator itself.
One of my post-1.0.0 challenges is to profile and tune the configurator
code to within an inch of its life.
--
<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>
'Faith' means not _wanting_ to know what is true.
-- Nietzsche, Der Antichrist
next prev parent reply other threads:[~2001-04-11 21:45 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-11 20:56 [kbuild-devel] Re: CML2 1.0.0 release announcement Michael Elizabeth Chastain
2001-04-11 21:46 ` esr [this message]
2001-04-12 1:01 ` Aaron Lehmann
2001-04-12 1:53 ` esr
2001-04-12 12:07 ` Dave Jones
2001-04-12 12:00 ` Steven Cole
2001-04-12 13:12 ` Dave Jones
2001-04-12 16:51 ` Horst von Brand
2001-04-12 16:12 ` Steven Cole
2001-04-12 17:59 ` Jochen Striepe
2001-04-11 22:25 ` Alan Cox
2001-04-12 0:40 ` esr
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