IronPython vs CPython: faster in 1.6 times?

Istvan Albert istvan.albert at
Tue Feb 5 21:01:23 CET 2008

On Feb 5, 12:31 pm, dmitrey <dmitrey.kros... at> wrote:
> Hi all,
> the url
> (blog of a game developers)
> says IronPython is faster than CPython in 1.6 times.
> Is it really true?

This is a second time around that IronPython piqued my interest
sufficiently to create a toy program to benchmark it and I must say
the results are not encouraging:

$ python
Elapsed time: 1.10 s

$ ipy
Elapsed time:65.01 s

and here is the benchmark program:

import time
start = time.time()

def foo(a):
    return a * a

data = {}
for i in xrange( 10**6 ):
    data[i] = foo(i)

print 'Elapsed time:%5.2f s' % ( time.time() - start)

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