% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 45.79    0.016710           8      2080      1024 chdir
 27.94    0.010197        1019        10         2 wait4
 23.70    0.008649          99        87         6 futex
  1.13    0.000412           2       184           rt_sigprocmask
  0.79    0.000289           9        32           munmap
  0.54    0.000197           6        32           clone
  0.06    0.000021           0        34           mprotect
  0.05    0.000018           0        33           mmap
  0.00    0.000000           0         2           brk
  0.00    0.000000           0         8           fork
  0.00    0.000000           0         1           execve
  0.00    0.000000           0         1           arch_prctl
  0.00    0.000000           0         9           set_tid_address
  0.00    0.000000           0         8           membarrier
------ ----------- ----------- --------- --------- ----------------
100.00    0.036493          14      2521      1032 total
