> strace -c env
...
Time % Usecs      Calls   Usecs/call Syscall
------ ---------- ------- ---------- --------------------
 28.57        774      65         11 _kern_read_stat
 25.43        689      39         17 _kern_write
  7.31        198      13         15 _kern_map_file
  6.20        168      16         10 _kern_read
  3.99        108       9         12 _kern_set_area_protection
  3.88        105      10         10 _kern_close
  3.54         96       8         12 _kern_open
  3.54         96       7         13 _kern_image_relocated
  3.29         89       8         11 _kern_create_area
  2.99         81       7         11 _kern_resize_area
  2.69         73       6         12 _kern_normalize_path
  2.69         73       7         10 _kern_reserve_address_range
  2.29         62       6         10 _kern_register_image
  1.92         52       5         10 _kern_read_link
  0.85         23       2         11 _kern_get_system_info
  0.41         11       1         11 _kern_ioctl
  0.41         11       1         11 _kern_exit_team