2 PERF_COUNT_HW_CPU_CYCLES 0
3 PERF_COUNT_HW_INSTRUCTIONS 1
4 PERF_COUNT_HW_CACHE_REFERENCES 2
5 PERF_COUNT_HW_CACHE_MISSES 3
6 PERF_COUNT_HW_BRANCH_INSTRUCTIONS 4
7 PERF_COUNT_HW_BRANCH_MISSES 5
8 PERF_COUNT_HW_BUS_CYCLES 6
9 PERF_COUNT_HW_STALLED_CYCLES_FRONTEND 7
10 PERF_COUNT_HW_STALLED_CYCLES_BACKEND 8
11 PERF_COUNT_HW_REF_CPU_CYCLES 9