SHORT  Cycles per instruction

EVENTSET
FIXC1 ACTUAL_CPU_CLOCK
FIXC2 MAX_CPU_CLOCK
PMC0  RETIRED_INSTRUCTIONS
PMC1  CPU_CLOCKS_UNHALTED
PMC2  RETIRED_UOPS

METRICS
Runtime (RDTSC) [s] time
Runtime unhalted [s]   PMC1*inverseClock
Clock [MHz]  1.E-06*(FIXC1/FIXC2)/inverseClock
CPI PMC1/PMC0
CPI (based on uops)   PMC1/PMC2
IPC PMC0/PMC1


LONG
Formulas:
CPI = CPU_CLOCKS_UNHALTED/RETIRED_INSTRUCTIONS
CPI (based on uops) = CPU_CLOCKS_UNHALTED/RETIRED_UOPS
IPC = RETIRED_INSTRUCTIONS/CPU_CLOCKS_UNHALTED
-
This group measures how efficient the processor works with
regard to instruction throughput. Also important as a standalone
metric is RETIRED_INSTRUCTIONS as it tells you how many instruction
you need to execute for a task. An optimization might show very
low CPI values but execute many more instruction for it.