[OLPC-devel] Re: wireless networking, in the "real" world.
jg at laptop.org
Tue Mar 14 20:53:06 EST 2006
On Wed, 2006-03-15 at 01:32 +0000, Mike Hearn wrote:
> On Tue, 2006-03-14 at 20:10 -0500, Jim Gettys wrote:
> > There is another aspect I think people are missing: you are all
> > presuming 802.11g running at tens of megabits.
> OK, actually I had assumed wireless was too fancy for most places and
> good old wires would be used. I don't think it's that CPU expensive for
> a good network card to shovel bits off the wire and into memory, but
> never checked exact figures.
Wires are expensive. Go check the cost of a USB cable, or an ethernet
cable. Wireless is cheap. Costs a few bucks, and no wires to
> I have no clue how much CPU time a wireless connection takes, I hardly
> ever use wireless. So yes, probably you're right.
It's not the CPU time actually driving the wireless at all; it is the
time the CPU is sitting around waiting for the bits to move, at low
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