Date: Mon, 29 Jun 1998 19:24:28 -0500 (CDT) From: Jim Bryant <jbryant@unix.tfs.net> To: jamie@itribe.net (Jamie Bowden) Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: I2O Message-ID: <199806300024.TAA01679@unix.tfs.net> In-Reply-To: <Pine.SGI.3.96.980629151541.1819F-100000@animaniacs.itribe.net> from Jamie Bowden at "Jun 29, 98 03:18:17 pm"
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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
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