The command ltrace enables you to trace the library calls of a process. This command is used in a similar fashion to strace. The parameter -c outputs the number and duration of the library calls that have occurred:
$ strace -c find /usr/share/doc
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
86.27 1.071814 30 35327 write
10.15 0.126092 38 3297 getdents64
2.33 0.028931 3 10208 lstat64
0.55 0.006861 2 3122 1 chdir
0.39 0.004890 3 1567 2 open
[...]
0.00 0.000003 3 1 uname
0.00 0.000001 1 1 time
------ ----------- ----------- --------- --------- ----------------
100.00 1.242403 58269 3 total