From owner-freebsd-hackers Mon Jun 29 17:26:58 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA12694 for freebsd-hackers-outgoing; Mon, 29 Jun 1998 17:26:58 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from unix.tfs.net (as1-p62.tfs.net [139.146.210.62]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA12636 for ; Mon, 29 Jun 1998 17:26:26 -0700 (PDT) (envelope-from jbryant@unix.tfs.net) Received: (from jbryant@localhost) by unix.tfs.net (8.8.8/8.8.5) id TAA01679; Mon, 29 Jun 1998 19:24:30 -0500 (CDT) From: Jim Bryant Message-Id: <199806300024.TAA01679@unix.tfs.net> Subject: Re: I2O In-Reply-To: from Jamie Bowden at "Jun 29, 98 03:18:17 pm" To: jamie@itribe.net (Jamie Bowden) Date: Mon, 29 Jun 1998 19:24:28 -0500 (CDT) Cc: freebsd-hackers@FreeBSD.ORG Reply-to: jbryant@unix.tfs.net X-Windows: R00LZ!@# MS-Winbl0wz DR00LZ!@# X-files: The truth is that the X-Files is fiction X-Republican: The best kind!!! X-Operating-System: FreeBSD 3.0-CURRENT #0: Sat Jun 20 11:57:05 CDT 1998 X-Mailer: ELM [version 2.4ME+ PL32 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In reply: > On Mon, 29 Jun 1998, Ron G. Minnich wrote: > > > at usenix last week the question of I2O came up. > > > > Don't worry about I2O. Look around: how many I2O motherboards do you see, > > as compared to non-I2O motherboards? > > > > Look at it this way: you think microsoft is that interested in requiring > > a second operating system (vxworks) to make NT go? > > > > I2O will be a footnote in a year or so. After that, it will be forgotten > > and in 10 years someone else will reinvent the idea and learn the hard > > way why it is a bad one (as I2O is itself a reinvention of old, bad ideas). > > Why is offloading IO a bad idea? Offloading video and 3D rendering work > well, it's what drives 3dfx and it's competitors. Or am I missing > something? My basic understanding of I2O is using a subprocessor to > handle all IO, thus freeing up the main processor from doing things like > waiting on interrupts and the like. ever hear of scsi? how about bus-mastering? jim -- All opinions expressed are mine, if you | "I will not be pushed, stamped, think otherwise, then go jump into turbid | briefed, debriefed, indexed, or radioactive waters and yell WAHOO !!! | numbered!" - #1, "The Prisoner" ------------------------------------------------------------------------------ Inet: jbryant@tfs.net AX.25: kc5vdj@wv0t.#neks.ks.usa.noam grid: EM28pw voice: KC5VDJ - 6 & 2 Meters AM/FM/SSB, 70cm FM. http://www.tfs.net/~jbryant ------------------------------------------------------------------------------ HF/6M/2M: IC-706-MkII, 2M: HTX-212, 2M: HTX-202, 70cm: HTX-404, Packet: KPC-3+ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message