[pypy-dev] ctypes - PyPy 1.8 slower than Python 2.6.5

[Sébastien Volle]

Hello,

I ran stock pypy 1.8 and latest version of ctypes from mercurial and here
are the results with a capture file with around 110,000 ARP packets:

Stock pypy 1.8:
-----------------------------------------------
elapsed time  : 2419.07ms
Total packets : 110450
packets/s     : 45658.02


pypy 1.8 binary and latest ctypes:
-----------------------------------------------
elapsed time  : 1410.92ms
Total packets : 110450
packets/s     : 78282.04


CPython 2.6.5:
------------------------------------------------
elapsed time  : 964.23ms
Total packets : 110450
packets/s     : 114547.49

As you can see, in this situation the performance increase is rather
significant. CPython still holds the advantage with a fair margin though.

Regards,
Sébastien


Le 20 février 2012 06:38, Antonio Cuni <anto.cuni at gmail.com> a écrit :

> On 02/20/2012 12:59 PM, Sébastien Volle wrote:
>
>> Hello Antonio,
>>
>> Thank you for the update. I'll try and run a long running capture. Several
>> days worth of ARP packets should be enough to maximize JIT effect I
>> suppose.
>> I'll keep you updated.
>>
>
> to amortize the JIT warmup cost, it's probably enough to have a benchmark
> which runs for few seconds. No clue how many days of ARP packets are needed
> for that, though :-).
>
> ciao,
> Anto
>
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