 Summary of events:

 mysqld (1843), 88213 events, 42.1%

   syscall            calls  errors  total (msec)  min (msec)  avg (msec)  max (msec)  stddev (%)
   futex              12043     820      8421.113       0.001       0.699     102.334       3.21
   read                8802       0       412.556       0.002       0.047       8.114       1.02
   write               6120       0       288.019       0.003       0.047       5.220       0.98
   epoll_wait          4021       0     31002.884       0.010       7.710     512.009      11.40
   nanosleep           1980       0       990.114       0.100       0.500       1.220       0.45
   fsync                 812       0      1204.882       0.200       1.484      42.006       6.71
