➜  sudo perf stat -r 10 -d ./cache2

 Performance counter stats for './cache2' (10 runs):

        277.245502      task-clock (msec)         #    0.999 CPUs utilized            ( +-  0.43% )
                 2      context-switches          #    0.008 K/sec                    ( +- 74.26% )
                 0      cpu-migrations            #    0.000 K/sec
            48,872      page-faults               #    0.176 M/sec                    ( +-  0.00% )
     1,064,426,393      cycles                    #    3.839 GHz                      ( +-  1.01% )  (49.00%)
       646,882,247      instructions              #    0.61  insn per cycle           ( +-  0.92% )  (61.91%)
        41,950,485      branches                  #  151.312 M/sec                    ( +-  1.22% )  (62.42%)
            86,894      branch-misses             #    0.21% of all branches          ( +-  2.74% )  (63.68%)
       203,643,185      L1-dcache-loads           #  734.523 M/sec                    ( +-  0.52% )  (60.98%)
        43,216,444      L1-dcache-load-misses     #   21.22% of all L1-dcache hits    ( +-  0.23% )  (25.31%)
        32,213,531      LLC-loads                 #  116.191 M/sec                    ( +-  0.43% )  (24.28%)
         1,593,178      LLC-load-misses           #    4.95% of all LL-cache hits     ( +-  3.33% )  (36.53%)

       0.277515107 seconds time elapsed                                          ( +-  0.44% )

➜  sudo perf stat -r 10 -d ./cache1

 Performance counter stats for './cache1' (10 runs):

         98.945293      task-clock (msec)         #    0.998 CPUs utilized            ( +-  0.30% )
                 0      context-switches          #    0.005 K/sec                    ( +-100.00% )
                 0      cpu-migrations            #    0.000 K/sec
            48,872      page-faults               #    0.494 M/sec                    ( +-  0.00% )
       383,080,791      cycles                    #    3.872 GHz                      ( +-  0.20% )  (51.21%)
       652,866,309      instructions              #    1.70  insn per cycle           ( +-  0.23% )  (63.64%)
        42,986,792      branches                  #  434.450 M/sec                    ( +-  0.30% )  (63.64%)
            81,917      branch-misses             #    0.19% of all branches          ( +-  1.15% )  (63.63%)
       202,487,105      L1-dcache-loads           # 2046.455 M/sec                    ( +-  0.35% )  (52.87%)
         1,820,074      L1-dcache-load-misses     #    0.90% of all L1-dcache hits    ( +-  0.31% )  (24.63%)
            44,857      LLC-loads                 #    0.453 M/sec                    ( +-  3.92% )  (26.48%)
            41,886      LLC-load-misses           #   93.38% of all LL-cache hits     ( +- 18.52% )  (38.05%)

       0.099134577 seconds time elapsed                                          ( +-  0.29% )