On Fri, 23 Apr 1999, Pierre Cloutier wrote:
> >pointed to me by Tomasz Motyleski can be the right one: interrupt at a
> >time before the needed one, according to the max jitter you have
> >measured, keeping the interrupts disabled, and keep reading the cpu
> >clock (TSC) till the very instant you are waiting for. In that way the
> >jitter is less than 1 us. After Tomasz's suggestion I tried it under
> >RTAI, it works nicely but sucks a lot.
> >
>
> Hi Paolo:
>
> On a SMP machine, could one CPU do that while the other is running?
Look at http://isunix.it.ilstu.edu/~thockin/pset/ - in theory you should be
able to "isolate" processor and run some RT code on it. I have emailed the
author, he was not sure whether it will work with interrupts disabled, but it
should. At the moment this is for 2.2 kernels.
--
Tomek
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