gistfile1.txt

Xeon L5630:~$ for i in 1 2; do perf stat -e cycles,instructions,cache-references,cache-misses,stalled-cycles-frontend,stalled-cycles-backend,LLC-loads,LLC-load-misses ./test$i; sleep 3; done
16777216

 Performance counter stats for './test1':

       12433495368 cycles                    [49.90%]
       20189930563 instructions              #    1.62  insns per cycle
                                             #    0.35  stalled cycles per insn [62.43%]
           8512348 cache-references                                             [62.49%]
           4216625 cache-misses              #   49.535 % of all cache refs     [62.61%]
        6994470819 stalled-cycles-frontend   #   56.26% frontend cycles idle    [62.63%]
         270233891 stalled-cycles-backend    #    2.17% backend  cycles idle    [62.57%]
             88061 LLC-loads                                                    [49.98%]
             32500 LLC-load-misses           #   36.91% of all LL-cache hits    [49.90%]

       5.621416874 seconds time elapsed

16777216

 Performance counter stats for './test2':

       21166966474 cycles                    [50.02%]
       20191834077 instructions              #    0.95  insns per cycle
                                             #    0.77  stalled cycles per insn [62.53%]
         134780496 cache-references                                             [62.53%]
         121400730 cache-misses              #   90.073 % of all cache refs     [62.53%]
       15493381212 stalled-cycles-frontend   #   73.20% frontend cycles idle    [62.53%]
        6532339503 stalled-cycles-backend    #   30.86% backend  cycles idle    [62.49%]
         125100824 LLC-loads                                                    [49.97%]
         116213474 LLC-load-misses           #   92.90% of all LL-cache hits    [50.00%]

       9.511937843 seconds time elapsed

Xeon L5630:~$