[Python-Dev] PEP 580 (C call protocol) draft implementation

[INADA Naoki]

Thanks, Jeroen.

I haven't review your code yet, but benchmark shows no significant
slowdown.  It's good start!

$ ./python -m perf compare_to master.json pep580.json -G --min-speed=5
Slower (6):
- scimark_fft: 398 ms +- 20 ms -> 442 ms +- 42 ms: 1.11x slower (+11%)
- xml_etree_process: 99.6 ms +- 5.2 ms -> 109 ms +- 16 ms: 1.10x slower
(+10%)
- crypto_pyaes: 138 ms +- 1 ms -> 149 ms +- 13 ms: 1.09x slower (+9%)
- pathlib: 24.8 ms +- 1.8 ms -> 27.0 ms +- 3.8 ms: 1.09x slower (+9%)
- spectral_norm: 155 ms +- 8 ms -> 165 ms +- 17 ms: 1.06x slower (+6%)
- django_template: 151 ms +- 5 ms -> 160 ms +- 8 ms: 1.06x slower (+6%)

Faster (6):
- pickle_list: 5.37 us +- 0.74 us -> 4.80 us +- 0.34 us: 1.12x faster (-11%)
- regex_v8: 29.5 ms +- 3.3 ms -> 27.1 ms +- 0.1 ms: 1.09x faster (-8%)
- telco: 8.08 ms +- 1.19 ms -> 7.45 ms +- 0.16 ms: 1.09x faster (-8%)
- regex_effbot: 3.84 ms +- 0.36 ms -> 3.56 ms +- 0.05 ms: 1.08x faster (-7%)
- sqlite_synth: 3.98 us +- 0.53 us -> 3.72 us +- 0.07 us: 1.07x faster (-6%)
- richards: 89.3 ms +- 9.9 ms -> 84.6 ms +- 5.7 ms: 1.06x faster (-5%)

Benchmark hidden because not significant (48)

Regards,

On Sat, Jun 23, 2018 at 12:32 AM Jeroen Demeyer <J.Demeyer at ugent.be> wrote:

> Hello all,
>
> I have a first draft implementation of PEP 580 (introducing the C call
> protocol):
>
> https://github.com/jdemeyer/cpython/tree/pep580
>
> Almost all tests pass, only test_gdb and test_pydoc fail for me. I still
> have to fix those.
>
>
> Jeroen.
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-- 
INADA Naoki  <songofacandy at gmail.com>
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