SHORT Perf counters

EVENTSET
FIXC0 INSTR_RETIRED_ANY
FIXC1 CPU_CLK_UNHALTED_CORE
FIXC2 CPU_CLK_UNHALTED_REF
MPERF MPERF
APERF APERF
PPERF PPERF


METRICS
Runtime (RDTSC) [s] time
Runtime unhalted [s] FIXC1*inverseClock
Clock [MHz]  1.E-06*(FIXC1/FIXC2)/inverseClock
CPI  FIXC1/FIXC0
Aperf/Mperf [%] APERF/MPERF*100
Pperf/Aperf [%] PPERF/APERF*100

LONG
Formulas:
Aperf/Mperf = APERF/MPERF*100
Pperf/Aperf = PPERF/APERF*100
-
Skylake implements the perf counters interface. This interface enables to
monitor the aperf/mperf & pperf/aperf

