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Re: Autocross Timing/Scoring Software

To: autox mailing list <autox@autox.team.net>
Subject: Re: Autocross Timing/Scoring Software
From: "Mark J. Andy" <marka@telerama.com>
Date: Wed, 6 Oct 1999 08:19:04 -0400 (EDT)
Howdy,

On Tue, 5 Oct 1999, GPSoftware wrote:
> This is a great description. I don't know enough (yet) to make any claims
> but I believe that a properly written VxD would enable the same job to be
> done under Windoze. There would be a lot of advanges to having a Windows
> based program if you could get the timing part down.

Like you (I think, anyway), I don't have direct experience doing realtime
stuff under windows, but I don't share your optimism that a VxD will cure
the ills...  There's simply too much other stuff happening in the OS that
assumes its not a realtime environment.  I dunno if you could get a VxD
high enough in the interrupt food chain to ensure that it wasn't waiting
to process a keyclick or something.

I do know that NT supplies some real time stuff, but I havn't looked at it
closely enough to know if you can get down to 0.001 accuracy.

Mark
(and to whoever was posting that us actually measuring to 0.001 is silly,
I agree.  There's quite simply _way_ too much that can go wrong for us to
just blindly accept that car A really went 0.001 faster than car B, just
because the timer said it did.)


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