rshoaib@caduceus5:~/tests$ time ./make_dirs 

real	7m38.294s
user	2m36.604s
sys	5m29.904s
rshoaib@caduceus5:~/tests$ time rm -rf test_dirs

real	0m12.775s
user	0m0.160s
sys	0m12.456s


rshoaib@caduceus5:~/tests$ time ./make_dirs 

real	7m42.420s
user	2m35.036s
sys	5m33.021s
rshoaib@caduceus5:~/tests$ time  rm -rf test_dirs

real	0m12.577s
user	0m0.187s
sys	0m12.094s

rshoaib@caduceus5:~/tests$  time ./make_dirs 

real	7m38.993s
user	2m35.155s
sys	5m32.322s
rshoaib@caduceus5:~/tests$ time  rm -rf test_dirs

real	0m12.666s
user	0m0.133s
sys	0m12.430s
rshoaib@caduceus5:~/tests$ time ./make_dirs 

real	7m40.101s
user	2m36.006s
sys	5m32.914s
rshoaib@caduceus5:~/tests$ time  rm -rf test_dirs

real	0m12.554s
user	0m0.225s
sys	0m12.016s
