the simplest perfomance benchmark (python)

import sys

##from time import clock

if sys.version_info.major == 2:
    from time import clock
else:
    from time import monotonic as clock


def profiler(func):
    def wrapper(*args, **kwargs):
        t = clock()
        r = func(*args, **kwargs)
        print('{} iterations completed for {} milliseconds'.format(args[0], round(clock() - t, 4) * 1000))
        return r

    return wrapper

@profiler
def main(s):
    c = 0
    for i in range(s):
        c+=1
    return c

if __name__ == '__main__':
    for i in range(5):
        main(10**6)

# => around 70ms