% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 43.20    0.008885           4      2080      1024 chdir
 29.66    0.006101         762         8           wait4
 22.11    0.004548          48        93         1 futex
  1.83    0.000376          11        32           clone
  1.75    0.000360           1       184           rt_sigprocmask
  0.75    0.000155           4        32           munmap
  0.35    0.000073           2        33           mmap2
  0.33    0.000067           1        34           mprotect
  0.01    0.000002           0         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    0.020567           8      2525      1025 total
