% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 42.16    0.004936           2      2080      1024 chdir
 29.05    0.003402         283        12         4 wait4
 24.14    0.002827          33        85         3 futex
  2.19    0.000257           6        40           clone
  1.46    0.000171           5        32           munmap
  0.99    0.000116           0       184           rt_sigprocmask
  0.00    0.000000           0         9           set_tid_address
  0.00    0.000000           0         2           brk
  0.00    0.000000           0         1           execve
  0.00    0.000000           0        33           mmap
  0.00    0.000000           0        34           mprotect
  0.00    0.000000           0         8           membarrier
------ ----------- ----------- --------- --------- ----------------
100.00    0.011709           4      2520      1031 total
