gistfile1.txt

$ strace -c -f -p 460
Process 460 attached
% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 57.08    0.001468           0     95742           writev
 16.91    0.000435           0    287239     95739 read
 11.51    0.000296           0     95743           open
  7.66    0.000197           0     95754           close
  5.56    0.000143           0     95744           fstat
  1.28    0.000033           0      9599         1 epoll_wait
  0.00    0.000000           0         1           lseek
  0.00    0.000000           0         1           mmap
  0.00    0.000000           0         1           munmap
  0.00    0.000000           0         3           brk
  0.00    0.000000           0        11           setsockopt
  0.00    0.000000           0        11           fcntl
  0.00    0.000000           0        11           epoll_ctl
  0.00    0.000000           0        13         2 accept4
------ ----------- ----------- --------- --------- ----------------
100.00    0.002572                679873     95742 total