From owner-freebsd-fs Sun Oct 4 03:33:32 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id DAA15518 for freebsd-fs-outgoing; Sun, 4 Oct 1998 03:33:32 -0700 (PDT) (envelope-from owner-freebsd-fs@FreeBSD.ORG) Received: from post.mail.demon.net (post-11.mail.demon.net [194.217.242.40]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id DAA15457; Sun, 4 Oct 1998 03:32:45 -0700 (PDT) (envelope-from dmlb@ragnet.demon.co.uk) Received: from [158.152.46.40] (helo=ragnet.demon.co.uk) by post.mail.demon.net with smtp (Exim 2.03 #1) id 0zPlSe-0003Yz-00; Sun, 4 Oct 1998 10:32:20 +0000 Received: from dmlb by ragnet.demon.co.uk with local (Exim 1.82 #1) id 0zPlSW-0006jk-00; Sun, 4 Oct 1998 11:32:12 +0100 Message-ID: X-Mailer: XFMail 1.3 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <199810040616.QAA26536@godzilla.zeta.org.au> Date: Sun, 04 Oct 1998 11:32:12 +0100 (BST) From: Duncan Barclay To: Bruce Evans Subject: Re: filesystem safety and SCSI disk write caching Cc: tlambert@primenet.com, gibbs@plutotech.com, freebsd-scsi@FreeBSD.ORG, freebsd-fs@FreeBSD.ORG, Don.Lewis@tsc.tdk.com, mike@smith.net.au Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On 04-Oct-98 Bruce Evans wrote: >>> Yes, the default configuration may be much slower than mine. >> >>I can definitely back your basic point ('make world' is CPU bound) up. >>On a 4-way Xeon system with slow disks we were still able to get down >>around 40 minutes. > > Er, that shows that it is i/o bound on systems with so much CPU. I > got it down to 75 minutes on 1-way K6-233 with 1 IDE disk before it > was bloated by perl5 and transition to elf. > > Bruce I would agree, my AMD K6-233 did a make -j 4 in jst over an hour with src on IDE mounted async and obj on SCSI mounted async (this was upgrading from 2.2.6). I haven't tried it under -3.0 and softupdates yet. Duncan --- ________________________________________________________________________ Duncan Barclay | God smiles upon the little children, dmlb@ragnet.demon.co.uk | the alcoholics, and the permanently stoned. ________________________________________________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message