On Wed, 2002-05-15 at 10:52, Sridhar Dhanapalan wrote: > I don't have any URLs; I'm just heard/read anecdotes about this. It just may be > that USB devices do more than their PS/2 and serial versions. For instance, I > read a review on the USB optical Intellimouse a few months ago. The reviewer > said that the mouse was far more accurate and responsive in USB mode, but when > he tried to use it in Quake 3 it slowed his machine so that he couldn't play it > properly. He switched to PS/2 mode using the supplied adaptor, and the mouse > became less responsive but also less-taxing on the CPU.
This isn't a bandwidth problem, there's no way it could be. Therefore it must be one of three other things: driver bugs (immaturity), peripheral device bugs, or USB chipset bugs. Usually I've seen chipset bugs worked around with driver fixes, many times before in the past; I suspect the trend will continue successfully. > > also need some performance numbers in regard to the chipset platform > > that is giving you the USB functionality. Quite naturally, this is > > going to be giving different performance results depending on which > > chipset platform you choose; i.e., Intel or Via. "Performance" in this > > context meaning both CPU utilization and USB bus throughput. > > I'd love to see a performance comparison of the different buses. Does anyone on > the list know of any? I did'nt see this note until now; I posted another reply to one of your posts including a URL I located after you raised the topic of USB CPU utilization last night; check it out. :) Plus I posted some more mainboard bits. LX -- 같같같같같같같같같같같같같같같같같같같같같같같같같� Kernel 2.4.8-26mdk Mandrake Linux 8.1 Enlightenment 0.16.5 Evolution 1.02 Registered Linux User #268899 http://counter.li.org/ 같같같같같같같같같같같같같같같같같같같같같같같같같�
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