Martin Burnicki wrote:
> 
> Hm, the process CPU affinity is not restricted to a single CPU. Ntpd has 4
> active threads, and only the CPU affinity of the clock interpolation thread
> is restricted to the first CPU since this is the only thread which calls
> QueryPerformanceCounter() and thus potentially reads the TSC of the CPU it
> is running on. The other threads may still run on either CPU.
> 
> I'm not aware of a tool which displays the CPU affinity of a single thread,
> so I don't know right now how you can verify this, except by looking at the
> source code.
> 

I have a vague recollection of seeing one, but I don't remember where.
I'll try and see what I can dig up.

Danny
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