[Python-Dev] Benchmarks why we need PEP 576/579/580 (original) (raw)

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>

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