% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 45.22    0.027897          13      2080      1024 chdir
 28.20    0.017401        1740        10         2 wait4
 22.90    0.014130         157        90         8 futex
  1.68    0.001035           5       184           rt_sigprocmask
  0.86    0.000532          16        32           clone
  0.56    0.000344          10        32           munmap
  0.34    0.000208           6        34           mprotect
  0.21    0.000130           3        33           mmap2
  0.03    0.000021           2         8           membarrier
  0.00    0.000000           0         1           execve
  0.00    0.000000           0         2           brk
  0.00    0.000000           0         8           fork
  0.00    0.000000           0         1           set_thread_area
  0.00    0.000000           0         9           set_tid_address
------ ----------- ----------- --------- --------- ----------------
100.00    0.061698          24      2524      1034 total
