Libraries vs Win API

[qWord]

I am a physicist and the first thing that I taught in University is that we must do too many measurements and to take the average.

no doubts on that.
I thought of a method that wait x milliseconds between the calls (in a loop) in the hope that at the cache is cleared for the corresponding memory region. With such a method we can not get million measurement values, but I'm confidently that several hundred are also sufficient. For the recorded results, we kick the outlier and than take the average as usually.