google microbenchmarking cpu scaling warning

Question

When I run the google benchmark I get a WARNING saying that cpu scaling is enabled. Is that a feature that I can toggle at build via flags or at runtime via arguments or is it a system setting?

Answer 1

As stated in google benchmark documentation, to disable CPU scaling use cpupower tool.

sudo cpupower frequency-set --governor performance
./mybench
sudo cpupower frequency-set --governor powersave