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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: milliseconds and delay until
Date: Thu, 12 Jun 2003 08:20:43 +0200
Organization: At home
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Date: 2003-06-12T08:20:43+02:00
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Simon Wright wrote:

> NB!! on most desktop machines you'll get a minimum actual delay of 10
> ms (a tick) or even 2 ticks; what happens, I think, is that many of
> the "delay until"s turn out to be delaying until a time that has
> already passed, so the program spins until it catches up.

It is a complicated issue which depends on great variety of factors [OS, 
whether Ada RT uses native threads etc.]

But usually I would expect a better performance. [Even under Windows NT, 
where the time slicing quant is 10ms, one can force it to 1ms. Under 2k/XP 
it is already 1ms.]

-- 
Regards,
Dmitry A. Kazakov
www.dmitry-kazakov.de