Benchmark Python super() function

benchmark_super.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import timeit
import sys

class A(object):
    """Original"""
    def x(self):
        return 2

class B(A):
    """A.x(self)"""
    def x(self):
        return A.x(self)

class C(A):
    """super(self, B).x()"""
    def x(self):
        return super(C, self).x()

class D(A):
    """Py3k super().x()"""
    def x(self):
        return super().x()

NUMBER = 10000
def bench_func(obj):
    for i in range(1000):
        obj.x()


objects = [A(), B(), C()]
if sys.version_info[0] == 3:
    objects.append(D())

for obj in objects:
    print('%-20s %s' % (obj.__doc__, timeit.timeit(lambda : bench_func(obj),
                                                   number=NUMBER)))

results.txt

Python 2.7
----------

Original             1.58733854225
A.x(self)            5.68280225777
super(self, B).x()   6.59171414585


Python 3.2
----------

Original             1.7320700459696752
A.x(self)            3.103703411448495
super(self, B).x()   6.925158743071903
Py3k super().x()     5.659430906174519


PyPy
----

Original             0.0320502838277
A.x(self)            0.252451937144
super(self, B).x()   0.671578687892