[root@www ~]# strace -c -p 7845
Process 7845 attached - interrupt to quit
Process 7845 detached
% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 98.91    0.000996         498         2           poll
  0.60    0.000006           6         1           close
  0.30    0.000003           3         1           shutdown
  0.20    0.000002           1         2         1 read
------ ----------- ----------- --------- --------- ----------------
100.00    0.001007                     6         1 total