Date: Sat, 7 Oct 2000 10:17:32 +0200 From: Wilko Bulte <wkb@freebie.demon.nl> To: Ken Bolingbroke <freebsd@bolingbroke.com> Cc: FreeBSD Stable <stable@freebsd.org> Subject: Re: `time make buildworld' Message-ID: <20001007101732.A91198@freebie.demon.nl> In-Reply-To: <Pine.BSF.4.21.0010070011530.84656-100000@fremont.bolingbroke.com>; from freebsd@bolingbroke.com on Sat, Oct 07, 2000 at 12:14:48AM -0700 References: <39DECC00.71E81EF1@urx.com> <Pine.BSF.4.21.0010070011530.84656-100000@fremont.bolingbroke.com>
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On Sat, Oct 07, 2000 at 12:14:48AM -0700, Ken Bolingbroke wrote: > > > On Sat, 7 Oct 2000, Kent Stewart wrote: > > > Ken Bolingbroke wrote: > > > > > > I previously mentioned my adventures upgrading a Pentium 133 from 2.2.5 to > > > 4.1.1, but I'm noting some odd behavior with the length of time it takes > > > to buildworld: > > >... > > > -Running 3.2-S, buildworld to 3.5-S, ~12 hours > > >... > > > -Running 4.1.1-S, buildworld 4.1.1-S, 74 hours, 53 minutes. > > >... > > > So what's happening here? Softupdates slow down buildworld? 4.1.1 does > > > buildworld slower than 3.5 and earlier? Or 4.1.1 buildworld takes a lot > > > longer than earlier versions? Or my system is just weird? > > > > I'm assuming weird up front. I find a 4.1.1 BW takes 36xxu and 1:23 of > > clock time on my P-II 400 with 256MB of memory and UDMA33 HD's. You > > p133 should be about 6x or more slower as a guess. I think your > > differences, based on really minimal information, are probably due to > > the kind of HD's you have and how much memory. > > Someone else just made me think--perhaps 4.1.1 is more sensitive to low > RAM? This machine only has 8meg RAM, with 200 megs of swap evenly split > across two IDE disks. There were no hardware changes between the various > builds. Ah. In 8 meg it thrashes like h*ll, so all bets are off as far as a reasonable build time. FWIW: on an Alpha I ran the experiment to build a GENERIC kernel on 16Mb RAM. After 26 hours I gave up.. -- Wilko Bulte wilko@freebsd.org Arnhem, the Netherlands To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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