time.clock() going backwards??
Fredrik Lundh
fredrik at pythonware.com
Mon Aug 28 11:52:43 EDT 2006
Claudio Grondi wrote:
> If it were so, than why can't the delta of time between the processors
> be set to exact zero?
someone just wrote:
>>>> This was a change from previous systems. On NT4 and Win2000, the
>>>> operating actually rewrote the cycle counters on the second (and
>>>> beyond) processors to align them to the first processor, so the delta
>>>> was usually only a dozen or two cycles. XP does not appear to do
>>>> that. I think that is a huge mistake, since it renders
>>>> QueryPerformanceCounter non-monotonic.
so if you really want to know, you may have to ask microsoft.
</F>
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