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SubjectRe: Linux and real time process control (Can't sleep less than 20ms)
On Sat, 10 Jul 1999, Dale Amon wrote:

:
: Since I happened to be chatting with Richard Gooch
: about an area related to timers offline, although
: in a different context, I'll toss my ideas into the
: fray.
:
: First, I spent nearly 10 years doing
: real time process control type things.
: We never used Unix because it lacked the ability
: to accurately control time-based events where
: you simply could NOT get things out of sequence or
: have two events execute at other than a correct
: time +/- some delta. Mostly I was not dealing
: with life and death... mostly.

Did you try RT-Linux, especially RTAI ? In my turn I can say that only
Unix (Linux) I will use in realtime development, because of it reliabilty
an predictable behavour.

:
: Unix has improved in this, more due to processor
: speed and finer time slicing, but I'd still be
: leary of controlling seriously critical stuff
: with it (go ahead, convince me :-)
:

The processor speed doesn't matter. You can do hard realtime on 486
machines.

:
:

Rus


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