From owner-freebsd-current Wed Jul 30 03:50:16 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id DAA23891 for current-outgoing; Wed, 30 Jul 1997 03:50:16 -0700 (PDT) Received: from smoke.marlboro.vt.us (smoke.marlboro.vt.us [198.206.215.91]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id DAA23883 for ; Wed, 30 Jul 1997 03:50:11 -0700 (PDT) Received: (from cgull@localhost) by smoke.marlboro.vt.us (8.8.5/8.8.5/cgull) id GAA03660; Wed, 30 Jul 1997 06:49:54 -0400 (EDT) Date: Wed, 30 Jul 1997 06:49:54 -0400 (EDT) Message-Id: <199707301049.GAA03660@smoke.marlboro.vt.us> From: john hood MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: Jason Young Cc: john hood , Søren Schmidt , freebsd-current@FreeBSD.ORG Subject: Re: code talks: announcing EIDE bus master patches In-Reply-To: References: <199707290424.AAA23424@smoke.marlboro.vt.us> X-Mailer: VM 6.31 under Emacs 19.34.2 Sender: owner-freebsd-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Jason Young writes: > I'm not sure what this driver did to my 1GB Seagate, but all I have to say > is buy this man a beer. :) The machine: AMD 5x86-133, 1GB seagate and > 1.2GB WD EIDE drives, 32MB RAM. I ran these stats several times on an > idle system without appreciable changes each time I ran them. well, i won't pass up a free beer, but my code didn't do it. :) you have a 486-class machine that doesn't have busmastering IDE. it's not even a PCI bus machine. you just happened to turn on the already-existing multi-block and 32-bit PIO flags in your latest kernel upgrade. folks: performance with the default flags on the wd driver is *terrible*, and the flags should always be configured for your machine. see LINT for details. --jh -- John Hood cgull@smoke.marlboro.vt.us Predictably, they all eventually wandered away, rubbing their bruises and brushing mud out of their hair. Some went off to work for the ESA, launching much smaller rockets into low orbits, while others elected to sit on their front porches drinking Jim Beam from the bottle and launching bottle rockets from the empties. [Jordan Hubbard]