[issue41310] micro-optimization: increase our float parsing speed by Nx

[Gregory P. Smith]

New submission from Gregory P. Smith <greg at krypto.org>:

See https://lemire.me/blog/2020/03/10/fast-float-parsing-in-practice/ for inspiration and a reference (possibly a library to use, but if not the techniques still apply).

Primarily usable when creating the float objects from the string data as is common in python code and particularly common in JSON serialized data.

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components: Interpreter Core
messages: 373730
nosy: gregory.p.smith
priority: normal
severity: normal
stage: needs patch
status: open
title: micro-optimization: increase our float parsing speed by Nx
type: enhancement
versions: Python 3.10

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41310>
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