Re: Can Debian do multi-core "MY WAY"?
On Saturday 14 May 2016 13:42:51 John Hasler wrote:
> Richard Owlett writes:
> > Anyone remember era when 8085 was "state of the art" ;/
>
> I remember when the 8080 was "state of the art".
>
> > I envision
> > core A using memory range X
> > core B using memory range Z
> >
> > My individual tasks could be handled by a 2MHz Z80
> >
> > Can Debian do it on GHz machine?
>
> That's low-level kernel hacking.
And you can download a pre-hacked version based on wheezy that can run
machinery with sub-micron accuracy, far better than the average machine
can do, as its subject to thermals etc that limit it to perhaps a
thousandth of an inch in everyday use. From linuxcnc.org today and
everyday. Free every day. I have 4 copies of it running here. On the
right board and cpu, this software can send a step pulse to a stepper
motor driver every 25 microseconds. Thats 40 kilohertz, not the stepper
motors top speed, so if you really want to move fast, a 90 dollar card
can take you to the limits of the opto-isolaters in those drivers at
somewhere above 200 kilohertz. Using that card allows one to be a whole
lot less picky about the board and cpu.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
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