Date: Thu, 8 Feb 2007 18:05:05 -0500 From: Bill Moran <wmoran@collaborativefusion.com> To: josh.carroll@psualum.com Cc: freebsd-questions@freebsd.org, Daniel Tourde <daniel.tourde@spray.se> Subject: Re: Intel Core Duo. SMP kernel but still only 50% load while using make on ports... Message-ID: <20070208180505.ba9b98b5.wmoran@collaborativefusion.com> In-Reply-To: <8cb6106e0702081456r6bba1523rf00e3bd90d86989@mail.gmail.com> References: <197003711018545@lycos-europe.com> <8cb6106e0702081456r6bba1523rf00e3bd90d86989@mail.gmail.com>
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In response to "Josh Carroll" <josh.carroll@gmail.com>:
> > > > I noticed something strange: When I compile using ma in the ports
> > > > tree, I only have 50% load. CPU1 is used at CPU0 is idle...
>
> As was already pointed out, ports do not compile with make -j X by
> default. You can do so for ports that will build cleanly (not all of
> them will), by adding something similar to the following to your
> make.conf:
>
> .if ${.CURDIR:M*/ImageMagick*}
> MAKE_ARGS+=-j4
> .endif
>
> A while back I found which ports I had installed that would play nice
> with make -j, so I updated make.conf with a bunch of similar entries
> to the above. Works fairly well, and there are actually quite a few
> ports that will compile with make -j. If you're interested, let me
> know and I'll throw my make.conf up somewhere.
You know, it'd be cool if there were a knob in the ports framework that
allowed port maintainers to specify this, something like PARALLEL_MAKE=yes
in the Makefile ...
Or is that a dumb idea for some reason I don't understand?
--
Bill Moran
Collaborative Fusion Inc.
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