[Python-Dev] PEP 393 Summer of Code Project

[Scott Dial]

On 8/24/2011 4:11 AM, Victor Stinner wrote:
> Le 24/08/2011 06:59, Scott Dial a écrit :
>> On 8/23/2011 6:38 PM, Victor Stinner wrote:
>>> Le mardi 23 août 2011 00:14:40, Antoine Pitrou a écrit :
>>>> - You could try to run stringbench, which can be found at
>>>>    http://svn.python.org/projects/sandbox/trunk/stringbench (*)
>>>>    and there's iobench (the text mode benchmarks) in the Tools/iobench
>>>>    directory.
>>>
>>> Some raw numbers.
>>>
>>> stringbench:
>>> "147.07 203.07 72.4 TOTAL" for the PEP 393
>>> "146.81 140.39 104.6 TOTAL" for default
>>> =>  PEP is 45% slower
>>
>> I ran the same benchmark and couldn't make a distinction in performance
>> between them:
> 
> Hum, are you sure that you used the PEP 383? Make sure that you are
> using the pep-383 branch! I also started my benchmark on the wrong
> branch :-)

You are right. I used the "Get Source" link on bitbucket to save pulling
the whole clone, but the "Get Source" link seems to be whatever branch
has the lastest revision (maybe?) even if you switch branches on the
webpage. To correct my previous post:

cpython.txt
183.26  177.97  103.0   TOTAL
cpython-wide-unicode.txt
181.27  195.58  92.7    TOTAL
pep-393.txt
181.40  270.34  67.1    TOTAL

And,

cpython.txt
real    0m32.493s
cpython-wide-unicode.txt
real    0m33.489s
pep-393.txt
real    0m36.206s

-- 
Scott Dial
scott at scottdial.com