From owner-freebsd-current Sun Jul 4 15:53:38 1999 Delivered-To: freebsd-current@freebsd.org Received: from stevenson.cogsci.ed.ac.uk (stevenson144.cogsci.ed.ac.uk [129.215.144.1]) by hub.freebsd.org (Postfix) with ESMTP id ED7CF14D72 for ; Sun, 4 Jul 1999 15:53:29 -0700 (PDT) (envelope-from richard@cogsci.ed.ac.uk) Received: from doyle.cogsci.ed.ac.uk (richard@doyle [129.215.110.29]) by stevenson.cogsci.ed.ac.uk (8.8.7/8.8.7) with SMTP id XAA05419; Sun, 4 Jul 1999 23:53:26 +0100 (BST) Date: Sun, 4 Jul 1999 23:53:24 +0100 Message-Id: <4909.199907042253@doyle.cogsci.ed.ac.uk> From: Richard Tobin Subject: Re: IBM-DJNA drives on FreeBSD To: Dag-Erling Smorgrav , Richard Tobin In-Reply-To: Dag-Erling Smorgrav's message of 04 Jul 1999 20:54:52 +0200 Organization: just say no Cc: freebsd-current@FreeBSD.ORG Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > Depends on your motherboard. Try to just disable UDMA66 first. Thanks, that's what I did. It works fine (I'm using a SOYO 5EHM motherboard with an AMD K6-2/200). Performance is excellent; bonnie gives: -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU svax32if 100 10336 95.5 14246 57.3 5733 35.9 11372 95.4 17128 57.0 147.9 3.3 that's 17MB/s for block reads (this varies quite a bit depending on the physical position on the disk). Not bad for a disk costing £165 for 13.5GB. On the other hand the system really grinds to a halt while the benchmark is running. Incidentally, I tried bonnie on an MSDOS partition (just because it's at the outside of the disk) and the result was: svax32im 100 8940 89.2 12984 76.1 473 2.8 9108 92.1 15584 86.4 76.3 48.8 Note the abysmal rewrite speed! -- Richard To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message