SHORT  Cycles per instruction

EVENTSET
PMC0  CPU_CYCLES
PMC1  INST_RETIRED

METRICS
Runtime (RDTSC) [s] time
CPI   PMC0/PMC1
IPC   PMC1/PMC0

LONG
Formulas:
CPI = CPU_CYCLES/INST_RETIRED
IPC = INST_RETIRED/CPU_CYCLES
-
This group measures how efficient the processor works with
regard to instruction throughput. Also important as the raw
value of INST_RETIRED as it tells you how many instruction
you need to execute for a task.

