[Python-Dev] Benchmarks why we need PEP 576/579/580

INADA Naoki songofacandy at gmail.com
Sat Jul 21 13:07:32 EDT 2018


On Sun, Jul 22, 2018 at 1:28 AM Jeroen Demeyer <J.Demeyer at ugent.be> wrote:
>
> Hello,
>
> I finally managed to get some real-life benchmarks for why we need a
> faster C calling protocol (see PEPs 576, 579, 580).

Good job.  But I already +1 for adding support for extension callable type.
Do you think this benchmark can be optimized more in future optimization
which is possible by PEP 580, but not 576?

>
> I should mention that this was done on Python 2.7.15 (SageMath is not
> yet ported to Python 3) but I see no reason why the conclusions
> shouldn't be valid for newer Python versions. I used SageMath 8.3.rc1
> and Cython 0.28.4.

Do you mean you backport LOAD_METHOD and fastcall to Python 2.7
for benchmarking?
Reproducing it seems hard job to me...

-- 
INADA Naoki  <songofacandy at gmail.com>


More information about the Python-Dev mailing list