Async Bench: perf

$ perf stat -a -- python PythonAsyncBench_Queue.py
 Performance counter stats for 'system wide':

      37211.171951      cpu-clock (msec)          #    2.000 CPUs utilized
            25,429      context-switches          #    0.683 K/sec
               137      cpu-migrations            #    0.004 K/sec
            29,248      page-faults               #    0.786 K/sec

      18.605707180 seconds time elapsed


$ perf stat -a -- python PythonAsyncBench_Coroutines.py
 Performance counter stats for 'system wide':

      33932.088605      cpu-clock (msec)          #    2.000 CPUs utilized
            27,452      context-switches          #    0.809 K/sec
               104      cpu-migrations            #    0.003 K/sec
           168,840      page-faults               #    0.005 M/sec

      16.966185958 seconds time elapsed