> Interesting. Perhaps you have a newer version of Process Explorer? Or
> maybe there's some setting somewhere to configure this that I haven't
> noticed...

v16.05 here, can't see any relevant setting.

If I tell POV to render with 6 threads I only get 50% usage, but with 12 
threads I get 100% usage.

However the elapsed times for the benchmark are:
6 threads  : 192s
12 threads : 136s

So 50% CPU is actually more like 70% CPU, but I guess it depends on the 
exact algorithm (how nicely it can hyperthread).

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