SHORT Clock of cores

EVENTSET
FIXC0 INSTR_RETIRED_ANY
FIXC1 CPU_CLK_UNHALTED_CORE
FIXC2 CPU_CLK_UNHALTED_REF

METRICS
Clock [MHz]  1.E-06*(FIXC1/FIXC2)/inverseClock

LONG
Formulas:
Clock [MHz]  1.E-06*(CPU_CLK_UNHALTED_CORE/CPU_CLK_UNHALTED_REF)/inverseClock
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This group gives you the actual core frequency in the measured time period. This is 
important because due to Speedstep and Turbo mode the frequency can vary significantly.


