From owner-freebsd-questions Mon Apr 12 23:34:58 1999 Delivered-To: freebsd-questions@freebsd.org Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (Postfix) with ESMTP id 7EE0714D3B for ; Mon, 12 Apr 1999 23:34:52 -0700 (PDT) (envelope-from grog@freebie.lemis.com) Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by allegro.lemis.com (8.9.1/8.9.0) with ESMTP id QAA14359; Tue, 13 Apr 1999 16:02:25 +0930 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.9.3/8.9.0) id QAA77059; Tue, 13 Apr 1999 16:02:20 +0930 (CST) Message-ID: <19990413160219.K74226@lemis.com> Date: Tue, 13 Apr 1999 16:02:19 +0930 From: Greg Lehey To: Adam Dace Cc: rick hamell , freebsd-questions@FreeBSD.ORG Subject: Re: Supported Socket 7 Motherboard UDMA Chipsets ? References: <19990413121808.A74226@lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i In-Reply-To: ; from Adam Dace on Tue, Apr 13, 1999 at 01:24:29AM -0500 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tuesday, 13 April 1999 at 1:24:29 -0500, Adam Dace wrote: > On Tue, 13 Apr 1999, Greg Lehey wrote: > >> On Monday, 12 April 1999 at 10:39:32 -0700, rick hamell wrote: > >> "*at least*"? I don't know any SCSI drives which will sustain 30 >> MB/s. > > Interesting to note that our big RAID 0+1 array at work only can sustain > approx 11MB/sec. Looks to me like UDMA is catching up. :) Real-world UDMA transfer rates currently do peak at about 15 MB/s. It looks like they're catching up. But not all RAID arrays are designed for blinding speed. >> The chip sets for which FreeBSD has specific support are listed in the >> function ide_pci_probe, in /sys/pci/ide_pci.c. The following is the >> listing from 4.0-CURRENT; you'll probably find that one or the other >> is missing in earlier versions. > > I didn't even realize 4.0 was under development. -CURRENT has been called 4.0 for about 3 months. Greg -- When replying to this message, please copy the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message