Date: Mon, 24 Nov 97 00:42:53 -0800 From: "Studded" <Studded@dal.net> To: "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG>, "Michael Porter" <ocean@wavefront.com> Subject: Re: make -j<n> Message-ID: <199711240843.AAA08331@mail.san.rr.com>
next in thread | raw e-mail | index | archive | help
On Sun, 23 Nov 1997 19:27:19 -0600, Michael Porter wrote: >I've read a lot lately about speeding up make worlds. On my P75, >overclocked to 90, with 40 megs ram, I get just over 7 hours. I finally >manned make to look up what the "-j" did. Ok, so it sets the number of >simultaneous jobs. Two questions: > >1) What's the default number of jobs? I'd guess one. My understanding is that you are correct. >2) How should I determine what the best number is? It's bound to be >different on different systems, so does anyone have any general rules? >Rules like 486-2 586slow-3 etc, or something like that. Assuming you are building some form of 2.2, you probably won't be able to use -j anything. :-/ I used to be able to do -j 2 very reliably, and it shaved about 1/3 off my compile time. Since some time shortly before the release of 2.2.5, this hasn't worked for me. As always, YMMV. Good luck, Doug *** Proud operator, designer and maintainer of the world's largest *** Internet Relay Chat server. 4,168 clients and still growing. :-) *** Try spider.dal.net on ports 6662-4 (Powered by FreeBSD) *** Part of the DALnet IRC network ***
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199711240843.AAA08331>