[pypy-dev] Playing with PyPy and Django

[Maciej Fijalkowski]

PyPy 3 is definitely slower than PyPy 2 btw, just so you know

On Sat, Feb 7, 2015 at 8:56 AM, Omer Katz <omer.drow at gmail.com> wrote:
> You need to warm up the JIT first.
> Run the benchmark a 10,000 times on PyPy before measuring and you'll see the
> real performance improvement.
> Nevertheless, it does sound like you're hitting a performance bug(s)
> somewhere. It's worth investigating.
>
> 2015-02-07 1:12 GMT+02:00 Tin Tvrtković <tinchester at gmail.com>:
>>
>> Hello, PyPy folks!
>>
>> While trying to speed up one of my Django sites, I noticed a new version
>> of PyPy
>> had just been released. So I grabbed a fresh download of PyPy 3 (since
>> this is
>> a Python 3 codebase) and tried taking it out for a spin.
>>
>> However, as far as I can see, whatever I try PyPy is consistently slower
>> than
>> CPython for this.
>>
>> Since this is a proprietary site, I've basically ripped out all the code
>> except
>> my settings.py and my requirements; and am benchmarking the Django admin
>> index.
>> The results are about the same.
>>
>> I've set up a small repo that can be used to reproduce the environment:
>> https://github.com/Tinche/PyPy-Django-Playground. There's additional info
>> in
>> the README there.
>>
>> These tests have been carried out on Ubuntu Trusty, 64-bit. CPython 3 is
>> the
>> system Python, 3.4. PyPy has been downloaded from the official site and
>> unzipped.
>>
>> So what I basically do is set up an admin session, and use the Django main
>> admin
>> page. 200 warmup requests, then 100 benchmarked requests, look at the mean
>> request time.
>>
>> Some results:
>>
>> Django's runserver, DEBUG mode:
>>
>> PyPy3            485.389 [ms]
>> CPython 3.4      105.777 [ms]
>>
>> Django's runserver, no debug:
>>
>> PyPy3             44.661 [ms]
>> CPython 3.4       18.697 [ms]
>>
>> Gunicorn, 1 worker, no debug:
>>
>> PyPy3             28.615 [ms]
>> CPython 3.4       13.532 [ms]
>>
>> I don't exactly claim to be an expert on benchmarking, but assuming my
>> site
>> is similar to the Django admin, CPython's gonna be giving me better
>> performance.
>> Also the debug runserver performance is kinda worrying. Nobody's going to
>> be
>> running this in production, but it makes development a little slower and
>> more
>> annoying than it should be.
>>
>> Is there anything to make PyPy more competitive in these kinds of
>> scenarios?
>>
>> Kind regards,
>> Tin
>> _______________________________________________
>> pypy-dev mailing list
>> pypy-dev at python.org
>> https://mail.python.org/mailman/listinfo/pypy-dev
>
>
>
> _______________________________________________
> pypy-dev mailing list
> pypy-dev at python.org
> https://mail.python.org/mailman/listinfo/pypy-dev
>