From owner-freebsd-stable Mon May 22 14:11:16 2000 Delivered-To: freebsd-stable@freebsd.org Received: from moek.pir.net (moek.pir.net [209.192.237.190]) by hub.freebsd.org (Postfix) with ESMTP id 3C9C137B727 for ; Mon, 22 May 2000 14:11:01 -0700 (PDT) (envelope-from pir@pir.net) Received: from pir by moek.pir.net with local (Exim) id 12tzTK-0001dF-00 for freebsd-stable@FreeBSD.ORG; Mon, 22 May 2000 17:10:46 -0400 Date: Mon, 22 May 2000 17:10:45 -0400 From: Peter Radcliffe To: freebsd-stable@FreeBSD.ORG Subject: Re: ad0 drivers revisited Message-ID: <20000522171045.A5790@pir.net> Reply-To: freebsd-stable@freebsd.org Mail-Followup-To: freebsd-stable@FreeBSD.ORG References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: ; from kris@FreeBSD.org on Mon, May 22, 2000 at 01:37:22PM -0700 X-fish: < X-Copy-On-Listmail: Please do NOT Cc: me on list mail. Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Kris Kennaway probably said: > This was argued only to apply for a certain type of > controller/motherboard. It certainly doesn't seem to do this in the > general case, even if it's true at all. but there do seem to be far wider problems with the ata/ad driver for timeouts (both read and write). I get better performance on my laptop in PIO mode than DMA, because with PIO I don't have to wait for all the timouts to finish to actually get me some data. P. -- pir pir@pir.net pir@net.tufts.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message