Off topic I'm sorry..
OSF/1 and Hard Real Time.. I remember those days.
Indeed OSF/1 was touted as a HARD REAL TIME UNIX
( small print .. single user / no network )
I first tried it 5 years ago and got a very interesing response from
Digital to the odd but frequently missing 150mS gaps in execution.
Every now and again I get a reminder of how bad it all was before
Linux...
Phil Wilshire
>
> Albert D. Cahalan writes:
> > Digital UNIX (now Tru64, was OSF/1) uses self-modifying code to
> > create a generic kernel that can do, if I remember right:
> >
> > 1. plain
> > 2. real-time
> > 3. SMP
> > 4. real-time SMP
> > 5. lock debugging
>
> I have a Digital UNIX box on my desk and admin several Digital UNIX
> boxes in my job. It is not too horrible, but I would not hold it up as
> a shining example of a system that can do realtime work. It wasn't
> until recently that I didn't have to wait through multi-second freezeups
> on my box whenever I did large amounts of file I/O. I'm not sure they
> really fixed the problem as much as painted it over in more recent
> Digital UNIX versions.
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