[issue37587] JSON loads performance improvement for long strings

[Marco Paolini]

Marco Paolini <markopaolini at gmail.com> added the comment:

ops sorry here's the right commands

python -m pyperf timeit -s 'import json;' -s  'c = "a"; s = json.dumps(c * (2**10 // (len(json.dumps(c)) - 2)))' 'json.loads(s)' -o ascii2k.json
python -m pyperf timeit -s 'import json;' -s  'c = "€"; s = json.dumps(c * (2**10 // (len(json.dumps(c)) - 2)))' 'json.loads(s)' -o nonascii2k.json

Mean +- std dev: [ascii2k] 3.69 us +- 0.05 us -> [nonascii2k] 12.4 us +- 0.1 us: 3.35x slower (+235%)

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<https://bugs.python.org/issue37587>
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