From owner-freebsd-questions Thu Mar 28 22:24:34 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id WAA18509 for questions-outgoing; Thu, 28 Mar 1996 22:24:34 -0800 (PST) Received: from localhost (dyson.iquest.net [198.70.144.127]) by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id WAA18503 for ; Thu, 28 Mar 1996 22:24:29 -0800 (PST) Received: (from root@localhost) by localhost (8.6.11/8.6.9) id BAA10516; Fri, 29 Mar 1996 01:24:22 -0500 From: "John S. Dyson" Message-Id: <199603290624.BAA10516@localhost> Subject: Re: Triton EIDE interface support To: ejs@bfd.com (Eric J. Schwertfeger) Date: Fri, 29 Mar 1996 01:23:52 -0500 (EST) Cc: questions@freebsd.org Reply-To: dyson@freebsd.org In-Reply-To: from "Eric J. Schwertfeger" at Mar 28, 96 08:50:22 am X-Mailer: ELM [version 2.4 PL24 ME8] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > I'm currently running 2.1R on a triton based motherboard. I'm in the > process of converting over from Linux on this machine, and I was > curious. In linux, using hdparm, I can enable multi-sector transfers and > 32 bit transfers on my primary hard drive, which considerably increases > the drives performance (I'm not running the 1.3.X tree yet, so I don't > know what effect the triton DMA interface would have on the feel of the > system). > On FreeBSD, you need to enable multi-sector transfers as referred to in the config file. I am NOT running the DMA interface (FreeBSD doesn't support it yet), however with a WD Caviar WDC3600, I have typically gotten 5MBytes/sec (plus or minus) on the faster tracks on the drive. This is an excerpt from a posting that I made a week or so ago: Machine: ASUS P5-166 motherboard, triton, 40MBytes, 512K Pipeline Burst. FASTEST PART OF THE DISK: File './Bonnie.212', size: 104857600 Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done... -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 100 3837 70.6 5260 24.7 1782 9.6 4600 68.1 5482 17.4 92.7 3.8 John dyson@freebsd.org