[coyotos-dev] sleep capability

[Jonathan S. Shapiro]

On Tue, 2007-01-23 at 15:57 +0100, Pierre THIERRY wrote:
> Scribit Jonathan S. Shapiro dies 23/01/2007 hora 09:21:
> > 	uint64_t counter;	// on a shared page
> > 	for(;;)
> > 		counter++;
> > 
> > Other thread reads counter. Every bit as good as rdtsc.
> 
> Won't that be made inaccurate by the priority of the process, if it is
> too low, and many other processes with higher priority run in parallel?

Remember that the scenario assumes two CPUs, and that CPUs are idle most
of the time.
> 
> Astonishingly,
> Pierre
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Jonathan S. Shapiro, Ph.D.
Managing Director
The EROS Group, LLC
+1 443 927 1719 x5100