% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
  -nan    0.000000           0        10           read
  -nan    0.000000           0        11           open
  -nan    0.000000           0        15           close
  -nan    0.000000           0        11           fstat
  -nan    0.000000           0         1           poll
  -nan    0.000000           0        42           mmap
  -nan    0.000000           0        15           mprotect
  -nan    0.000000           0        16           munmap
  -nan    0.000000           0        10           brk
  -nan    0.000000           0         2           rt_sigaction
  -nan    0.000000           0         1           rt_sigprocmask
  -nan    0.000000           0        10        10 access
  -nan    0.000000           0         5           socket
  -nan    0.000000           0         5         2 connect
  -nan    0.000000           0         4           sendto
  -nan    0.000000           0         5           recvfrom
  -nan    0.000000           0         1           sendmsg
  -nan    0.000000           0         7           recvmsg
  -nan    0.000000           0         2           bind
  -nan    0.000000           0         3           getsockname
  -nan    0.000000           0         1           getpeername
  -nan    0.000000           0         1           socketpair
  -nan    0.000000           0         1           execve
  -nan    0.000000           0        14           fcntl
  -nan    0.000000           0         1           getrlimit
  -nan    0.000000           0         3           getuid
  -nan    0.000000           0         3           getgid
  -nan    0.000000           0         3           geteuid
  -nan    0.000000           0         3           getegid
  -nan    0.000000           0         1           arch_prctl
  -nan    0.000000           0         2           time
  -nan    0.000000           0         1         1 futex
  -nan    0.000000           0         1           epoll_create
  -nan    0.000000           0         1           set_tid_address
  -nan    0.000000           0         4           epoll_wait
  -nan    0.000000           0        10           epoll_ctl
  -nan    0.000000           0         1           set_robust_list
------ ----------- ----------- --------- --------- ----------------
100.00    0.000000                   227        13 total