Date: Thu, 08 Apr 1999 13:29:50 -0400 From: Gary Schrock <root@eyelab.psy.msu.edu> To: freebsd-questions@freebsd.org Subject: question about make -jn on single cpu Message-ID: <4.2.0.32.19990408131421.00a9b240@eyelab.msu.edu>
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Is there any advantage to doing a build with make -jn on a single cpu machine? I did some experimenting with the -current sources over the last few days (the sources are a couple weeks old, before the egcs stuff), and I'm finding that it's faster to do it without the -j option than with it: make -DNOAOUT buildworld: 58m make -j2 -DNOAOUT buildworld: 1h 12m make -j4 -DNOAOUT buildworld: 1h 8m Obviously from those results it definitely doesn't appear that there's an advantage at all. This machine is a p2-350, 64M ram, 7200 rpm ide drive, dma not enabled (I've had problems with dma, so I don't have it enabled right now). Gary Schrock root@eyelab.msu.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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