From owner-freebsd-current Tue Mar 6 18:18:59 2001 Delivered-To: freebsd-current@freebsd.org Received: from draco.over-yonder.net (draco.over-yonder.net [198.78.58.61]) by hub.freebsd.org (Postfix) with ESMTP id 3048037B719 for ; Tue, 6 Mar 2001 18:18:54 -0800 (PST) (envelope-from gh@over-yonder.net) Received: by draco.over-yonder.net (Postfix, from userid 1012) id 9386D62D06; Tue, 6 Mar 2001 20:18:53 -0600 (CST) Date: Tue, 6 Mar 2001 20:18:53 -0600 From: GH To: "oldfart@gtonet" Cc: current@FreeBSD.ORG Subject: Re: faster worlds... Message-ID: <20010306201853.D14771@over-yonder.net> References: <20010306202333.A54846@cokane.yi.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from oldfart@gtonet.net on Tue, Mar 06, 2001 at 06:03:57PM -0800 X-OS: FreeBSD Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, Mar 06, 2001 at 06:03:57PM -0800, some SMTP stream spewed forth: > I read something (somewhere) about speeding up buildworlds with a ramdisk > mounted to /usr/obj *IF* you have a lot of RAM but I cant seem to find it > anymore. Any help? What are you guys doing to speed up your worlds? Are I suppose you could do so. I have no experience with that, though. Ram just recently became relatively cheap. ;-) `du -d0 -c /usr/obj` 316617 /usr/obj 316617 total > people still passing -j# option to make or is that old school now? > Passing -j4 to my dual p3-500 didn't speed up buildworld at all but it speed > up the kernel build/install plenty. Unfortunately it broke the installworld > so I just did the installworld without the -j4 and it was fine. C'mon guys, > spit out the tips-n-tricks :) I still pass the -j option, usually a -j4 for a single-proc Athlon 700 with 256MB ram. I have not actually checked to see if it sped stuff up. ;-) Parallelizing installworld's is probably not going to work (as you have seen), and I think that it is even suggested *not* to. Heck, I even ran a -j64 once: 1229962.595u 3178499.752s 7:19:05.10 16733.5% 0+0k 52750+382894io 3616pf+477w That slowed things down a whole bunch, seven hours. I run a make -j4 buildworld/installword of -current on what has become a daily basis. It is probably not a good idea to do so blindly without tracking the lists. dan > OF > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message