[Python-Dev] Speeding up CPython 5-10% (original) (raw)

Yury Selivanov yselivanov.ml at gmail.com
Wed Jan 27 17:40:26 EST 2016

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BTW, this optimization also makes some old optimization tricks obsolete.

1. No need to write 'def func(len=len)'. Globals lookups will be fast.

2. No need to save bound methods:

obj = [] obj_append = obj.append for _ in range(10**6): obj_append(something)

This hand-optimized code would only be marginally faster, because of LOAD_METHOD and how it's cached.

Yury

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