SHORT  Cycles per instruction

EVENTSET
PMC0  UOPS_RETIRED
PMC1  CPU_CLK_UNHALTED

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

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