Date: Fri, 31 Jul 2009 14:46:19 +0200 From: Roland Smith <rsmith@xs4all.nl> To: David Southwell <david@vizion2000.net> Cc: amd64@freebsd.org Subject: Re: Taking full advantage of Intel Quad Core with Freebsd 7.2p2 Message-ID: <20090731124619.GB65912@slackbox.xs4all.nl> In-Reply-To: <200907311333.53815.david@vizion2000.net> References: <200907310919.57775.david@vizion2000.net> <0C3FFA484EC8423AB26C13C6737C8533@multiplay.co.uk> <200907311333.53815.david@vizion2000.net>
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--Pd0ReVV5GZGQvF3a Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 31, 2009 at 01:33:53PM +0100, David Southwell wrote: >=20 > > > > > 7.2-RELEASE-p2 FreeBSD 7.2-RELEASE-p2 #0: Wed Jun 24 00:14:35 UTC 2009 > > > root@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. > > >=20 > > Look at the -j XX option to make is the key things really. > > > > Regards > > Steve > > > > ----- Original Message ----- > > From: "David Southwell" <david@vizion2000.net> >=20 > Thanks Steve >=20 > 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 --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --Pd0ReVV5GZGQvF3a Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iEYEARECAAYFAkpy55sACgkQEnfvsMMhpyWpwwCgnRak4k/zTYG1agqrAP6co5M7 GVMAn0LwGuF3LuyGFrirvGkfhE56BJC+ =BBVm -----END PGP SIGNATURE----- --Pd0ReVV5GZGQvF3a--
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