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
http://www.guru99.com/performance-testing.html
http://www.agileload.com/learning-center/test-scenario-creation/getting-started/introduction
nem li: http://puretest.blogspot.com.br/2009/11/performance-testing-1.html
http://en.wikipedia.org/wiki/Software_performance_testing
http://www.slideshare.net/g3_nittala/profiling-and-optimization-14511764
http://sschwarzer.com/download/optimization_europython2006.pdf
http://lanyrd.com/2011/djangocon-us/shbqy/