ippSetCpuFeatures IPP8.2 Update 1

i want to make some performance measurement, but ippSetCpuFeatures seems not to work on my machine

i get always a ippStsFeatureNotSupported

even if i use

IppGetCpuFeatures

to request the feature mask and pass the unmodified mask to

ippSetCpuFeatures

PX_FM (3)  is the only value which works for ippSetCpuFeatures

Any ideas?

Ralf