Trying to determine how many cycles are spent on the transition from turbo boost frequency to nominal frequency (event FREQ_TRANS_CYCLES http://www.intel.com/content/dam/www/public/us/en/documents/design-guide... page 85).
In turbostat I can see that the frequency is changing, but then I read the value of FREQ_TRANS_CYCLES does not change when frequeny change.
Is this normal?
How I can determine the overhead for changing the frequency?
CPU - 2680. Set and read FREQ_TRANS_CYCLES event through msr-tool.
Thank for you time