Date: Sat, 19 Jan 2002 23:04:28 +0100 From: Wilko Bulte <wkb@freebie.xs4all.nl> To: Kent Stewart <kstewart@owt.com> Cc: Murray Stokely <murray@FreeBSD.ORG>, qa@FreeBSD.ORG Subject: Re: RELENG_4_5 Branch : January 21 ? Message-ID: <20020119230428.A39931@freebie.xs4all.nl> In-Reply-To: <3C49EA37.1090601@owt.com>; from kstewart@owt.com on Sat, Jan 19, 2002 at 01:50:47PM -0800 References: <20020119015249.GD18200@freebsdmall.com> <20020119084007.A10312@freebie.xs4all.nl> <20020119111145.GL18200@freebsdmall.com> <20020119190247.A12050@freebie.xs4all.nl> <3C49EA37.1090601@owt.com>
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On Sat, Jan 19, 2002 at 01:50:47PM -0800, Kent Stewart wrote: > Wilko Bulte wrote: > > > On Sat, Jan 19, 2002 at 03:11:45AM -0800, Murray Stokely wrote: > > > >>On Sat, Jan 19, 2002 at 08:40:07AM +0100, Wilko Bulte wrote: .. > >> I put a new 7200RPM disk into my PWS500 and got my make world time > >>down to just over 3 hours. As an exercise in patience I've just > >>started a "make release" to see how long the build will take. Is disk > >> > > > > IIRC it something like 6 hours or so on my DS10 > > > > > >>I/O this slow on all FreeBSD/Alpha machines, or is it just mine? > >>bonnie++ results are pathetic compared to any x86 box on my network. > >> > > > > IDE or SCSI disk? I have not tested/compared IOspeed to be honest. > > > > > > > I was testing some ATA-66/100 systems and I hit a limit doing > buildworlds. The build speed became much faster when I used 2 or more > HDs. It was really important to get /usr/src and /usr/obj and > different HDs. I was dropping buildworld times on a dual 866 > coppermines from something like 40 minutes to 26 minutes by doing > this. I ended up thinking about U2W but decided not to spend the > money. The 3 ATA-100 drives cost what a single 30GB lvd scsi cost. > > I log all of my builds and eventually ended up with the log and system > on one drive and /usr/src and /usr/obj on the other two. I figured > splitting things up would also benefit a scsi system because it would > take advantage of more of the bandwidth from the controller to the HDs. As far as I can see on Alpha we are maxing out the CPU instead of the disks. I have UW SCSI on my DS10, on a Qlogic 1040. Not the newest of drives though. I think the CVS operation is disk bound, my CVS repo is on NFS via 100 mbit ethernet to worsen things. -- | / o / /_ _ email: wilko@FreeBSD.org |/|/ / / /( (_) Bulte Arnhem, the Netherlands To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-qa" in the body of the message
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