[issue29318] Optimize _PyFunction_FastCallDict() for **kwargs
STINNER Victor
report at bugs.python.org
Wed Feb 1 11:08:07 EST 2017
STINNER Victor added the comment:
INADA Naoki: "Since mutating kw dict shouldn't affect caller's dict, caller and callee can't share the dict."
Oh, I knew that, it's not the first time that I propose to implement this optimization and that I got this answer !? So I added a comment for myself, to remind me not to propose this optimization anymore :-D
I close this issue.
Serhiy Storchaka: "In most cases kw is empty or very small. I doubt any optimization can have significant effect."
I have no opinion on Naoki's optimization idea.
Naoki: Feel free to implement your idea to measure the speedup, but please open a new issue for that if you consider that it's worth it.
FYI Naoki and me started to list ideas to optimize CPython 3.7:
http://faster-cpython.readthedocs.io/cpython37.html
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