strace -c /usr/local/freeswitch/bin/freeswitch

% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 99.95   40.717579        1515     26883           select
  0.03    0.011394           9      1274           read
  0.02    0.010000        1000        10           nanosleep
  0.00    0.000325           5        65           fstat64
  0.00    0.000061           0       318           gettimeofday
  0.00    0.000045           0       191       128 open
  0.00    0.000010           0       112           mmap2
  0.00    0.000005           0        64           close
  0.00    0.000005           0        58           fcntl64
  0.00    0.000004           0       350         1 futex
  0.00    0.000001           0         6           unlink
  0.00    0.000001           1         1           execve
  0.00    0.000001           0         8         8 access
  0.00    0.000001           0         4           brk
  0.00    0.000000           0       122           write
  0.00    0.000000           0        35           munmap
  0.00    0.000000           0        24           fsync
  0.00    0.000000           0         7           clone
  0.00    0.000000           0         1           uname
  0.00    0.000000           0        12           mprotect
  0.00    0.000000           0        86           _llseek
  0.00    0.000000           0         1           _sysctl
  0.00    0.000000           0         5           rt_sigaction
  0.00    0.000000           0         1           rt_sigprocmask
  0.00    0.000000           0         1           getrlimit
  0.00    0.000000           0       606           stat64
  0.00    0.000000           0         2           madvise
  0.00    0.000000           0         1           set_thread_area
  0.00    0.000000           0         1           set_tid_address
  0.00    0.000000           0         2         1 shutdown
------ ----------- ----------- --------- --------- ----------------
100.00   40.739432                 30251       138 total