From owner-freebsd-questions Sat Apr 17 20:39:17 1999 Delivered-To: freebsd-questions@freebsd.org Received: from augustine.gci.net (augustine.gci.net [208.138.130.19]) by hub.freebsd.org (Postfix) with ESMTP id 60DB914D98 for ; Sat, 17 Apr 1999 20:39:15 -0700 (PDT) (envelope-from zeus@quakeclan.net) Received: from www.quakeclan.net ([24.237.0.24]) by augustine.gci.net (Netscape Messaging Server 3.6) with SMTP id AAA35A2 for ; Sat, 17 Apr 1999 19:36:13 -0800 Received: from shaun (unverified [139.134.147.47]) by www.quakeclan.net (EMWAC SMTPRS 0.83) with SMTP id ; Sat, 17 Apr 1999 19:53:41 -0800 Message-ID: <018f01be894c$a0952000$1701a8c0@shaun.ctnet.org.au> Reply-To: "Shaun Dwyer" From: "Shaun Dwyer" To: "FreeBSD questions" Subject: Poor SCSI disk performance Date: Sun, 18 Apr 1999 11:36:16 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi, after upgrading from 2.2.5 to 3.1-RELEASE the performance of my boot drive (Seagate Hawk ST31230N) has been quite poor. After testing with IO zone (all my iozone tests were with an 80MB file size and 8K block size) i initally recieved .98MB per sec write and 2.95MB per sec read. After fiddling with tunefs i managed to get 1.51MB per sec write and 4.33MB per sec read. This was done after a fresh install with the default newfs settings. From memory, with the previous version I was running, I got around 2.5-3MB per sec write and around 5MB per sec read. I get 2.91MB per sec writing, and 3.57MB per sec reading from my Quantum Lightening 730S! my Current hardware is: Asus P55T2P4 motherboard P133 Bus O/C to 75Mhz (150Mhz clock) 4MB S3 Virge WD8013EP 16Bit NIC Adaptec 2940AU SCSI controller da0: SEAGATE HAWK ST31230N ( 1GB) da1: QUANTUM LIGHTNING 730S (700MB) da2: SEAGATE ST4767 (640MB) I am really at a loss as to why my Hawk performs like a dog. Any help would be appriciated. As I am not subscribed to the mailing list please e-mail me directly. Thanks in advance Shaun To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message