https://pypi.python.org/pypi/meliae
http://valgrind.org/
http://www.vrplumber.com/programming/runsnakerun/
http://docs.python.org/2/library/timeit.html#module-timeit
http://docs.python.org/2/library/profile.html
http://stackoverflow.com/questions/582336/how-can-you-profile-a-python-script
http://wiki.python.org/moin/PythonSpeed/PerformanceTips#Profiling_Code