% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 43.79    0.017431           8      2080      1024 chdir
 28.48    0.011335        1133        10         2 wait4
 23.12    0.009202         108        85         1 futex
  1.77    0.000705           3       184           rt_sigprocmask
  0.83    0.000329          10        32           munmap
  0.81    0.000321          10        32           clone
  0.75    0.000297          37         8           fork
  0.24    0.000097           2        33           mmap2
  0.22    0.000086           2        34           mprotect
  0.00    0.000000           0         1           execve
  0.00    0.000000           0         2           brk
  0.00    0.000000           0         1           set_thread_area
  0.00    0.000000           0         9           set_tid_address
  0.00    0.000000           0         8           membarrier
------ ----------- ----------- --------- --------- ----------------
100.00    0.039803          15      2519      1027 total
