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Re: Building cvs emacs on a dual-core machine

From: Kim F. Storm
Subject: Re: Building cvs emacs on a dual-core machine
Date: Wed, 20 Dec 2006 15:40:22 +0100
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.92 (gnu/linux)

Eric Lilja <address@hidden> writes:

> However, when I tried that with emacs it started compiling, very fast
> with both cores busy, but the build craps out (sorry, no log) after a
> little while.

Only a fractional part of the build is about compiling C files.

Most of the time is spent inside emacs byte-compiling Lisp files,
and when that is done, it starts loading and undumping.

So most of the time, you have just one process running.

> Maybe because it tries to build something that depends
> on something else that has not been quite finished yet because when
> multiple jobs are specified things doesn't happen in serial anymore? I
> don't know, but I know it works if I exclude --jobs=2. But then emacs
> is built and the total cpu utilization is only 50 percent. :-( Is
> there a way I can utilise both cores when building emacs? 

Maybe you can build a GTK and a non-GTK version at the same time :-)

Kim F. Storm <address@hidden> http://www.cua.dk

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