From owner-aic7xxx Wed Jan 6 15:53:01 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA24618 for aic7xxx-outgoing; Wed, 6 Jan 1999 15:53:01 -0800 (PST) (envelope-from owner-aic7xxx@FreeBSD.ORG) Received: from narnia.plutotech.com (narnia.plutotech.com [206.168.67.130]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id PAA24612 for ; Wed, 6 Jan 1999 15:52:57 -0800 (PST) (envelope-from gibbs@narnia.plutotech.com) Received: (from gibbs@localhost) by narnia.plutotech.com (8.9.1/8.7.3) id QAA14530; Wed, 6 Jan 1999 16:44:21 -0700 (MST) Date: Wed, 6 Jan 1999 16:44:21 -0700 (MST) From: "Justin T. Gibbs" Message-Id: <199901062344.QAA14530@narnia.plutotech.com> To: "Jon Burchmore" cc: aic7xxx@FreeBSD.ORG Subject: Re: aic performance (Was Re: SCSI speed with IBM DGVS09U (8 GB) hard drive, Linux) X-Newsgroups: pluto.freebsd.aic7xxx In-Reply-To: <007401be39cc$3b96c200$1638a8c0@gobook2.htmlscript.com> User-Agent: tin/pre-1.4-980818 ("Laura") (UNIX) (FreeBSD/3.0-CURRENT (i386)) Sender: owner-aic7xxx@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org In article <007401be39cc$3b96c200$1638a8c0@gobook2.htmlscript.com> you wrote: > I haven't really been following this thread, but I'll assume that those > numbers were obtained on a P2/U2W system. I'm getting the following numbers > out of my Dual Pentium 200MHz system w/2940UW and a WD Enterprise 4.2GB UW >drive (Linux 2.1.131-ac11): You chose poorly. The WD Enterprise gets abysmal performance if you use tagged queuing. If you disable tags, you may see your performance as much as double. In the future, stick with IBM or Seagate drives. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message