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Posted

i agree. optical mice still skip, and usb has a shitty refresh or buffering or something, playing halflife with a usb mouse is painful

 

a mate of mine uses two mice, a usb cordless optical thing for general windows because it's comfy, but still a trusty old wired ps2 ball mouse for gaming

Posted
USB seems to be software controlled like win-modems. When your processor activity goes up, the priority for software devices goes down and your mouse stops moving in small stuttered movements.

ahh. mine would lag real bad, but kinda slow down the movement i gave it and lock on one direction until it recovered again. that's what you get for trying to play halflife on a celeron 333 running windows 2000 :)

Posted
USB seems to be software controlled like win-modems. When your processor activity goes up, the priority for software devices goes down and your mouse stops moving in small stuttered movements.

That's correct. USB is host driven architecture. Xfers actually need CPU, and the more devices you have, the less each individual device gets. From memory, I'm not sure if USB supports priority for devices, but I'd guess mice would get rather low bandwidth.

 

Now, Firewire, on the other hand, is driven by hardware... and you're supposed to get more consistent throughput as well, even thought the size of the pipe is slightly narrower than USB2.

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