Date: Wed, 7 Nov 2007 22:16:47 -0500 From: "Philip M. Gollucci" <philip@ridecharge.com> To: Chris Whitehouse <cwhiteh@onetel.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: compile ports and base using both cores Message-ID: <47327F9F.2060707@ridecharge.com> In-Reply-To: <47325A12.5060803@onetel.com> References: <472CB105.9020302@onetel.com> <47325A12.5060803@onetel.com>
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Chris Whitehouse wrote: > Chris Whitehouse wrote: >> Hi, >> >> Installing ports or upgrading the base system only uses around 50% cpu >> utilization (measured with the top utility) on my dual core machine. Is >> there some way I can get higher cpu usage? >> >> /usr/src/UPDATING says don't use make -j. I tried installing >> openoffice.org-2 with make -j 2 but it failed at some stage saying it >> couldn't find a directory. It works not using -j. This was just added to the ports tree as port of Google Summer of Code 2007. I don't recall if its was complete. Lots of people compile the base system with -jX The sweet spot is typically number of cores + 1 so on a dual dual core computer use -j5 If your disks are slow, they will hold your cpu back. -- ----------------------------------------------------------------- Philip M. Gollucci (philip@ridecharge.com) c:323.219.4708 o:703.749.9295x206 Senior System Admin - Riderway, Inc. http://riderway.com / http://ridecharge.com 1024D/EC88A0BF 0DE5 C55C 6BF3 B235 2DAB B89E 1324 9B4F EC88 A0BF Work like you don't need the money, love like you'll never get hurt, and dance like nobody's watching.
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