Taking full advantage of Intel Quad Core with Freebsd 7.2p2

[Roland Smith]

On Fri, Jul 31, 2009 at 01:33:53PM +0100, David Southwell wrote:
> 
> >
> > > 7.2-RELEASE-p2 FreeBSD 7.2-RELEASE-p2 #0: Wed Jun 24 00:14:35 UTC 2009
> > > root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64
> > >
> > > This system uses an intel quad core processor.on an Asus p5QL-E Mobo.
> > >
> > > Can someone please advise me on the best settings to take maximum
> > > advantage of the quad cores especially for compiling.
> >
> 
> > Look at the -j XX option to make is the key things really.
> >
> >     Regards
> >     Steve
> >
> > ----- Original Message -----
> > From: "David Southwell" <david at vizion2000.net>
> 
> Thanks Steve
> 
> I have two further questions:
> 1. What is a reasonable setting for a quad core

For a quad core you can use up to '-j 8'.

> 2. Whatever the setting for xx is would it be appropriate to use:
> portupgrade -a -m --j xx

The ports system automatically does parallel builds on an SMP system,
unless the port in question is marked unsuitable with
MAKE_JOBS_UNSAFE. For a quad core '-j 4' will be used. See
/usr/ports/Mk/bsd.port.mk

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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