Louie Lu added the comment:
I can now only test on Python3.6, providing much meaningful sentence,
still trying to use perf on cpython master branch.
---------------------------------------------------
$ python -m perf timeit -s 's="一件乒乓事事亏, 不乏串連产業, 万丈一争今为举, 其乎哀哉"*1000' --
's.find("乎")'
Median +- std dev: 228 ns +- 7 ns
$ python -m perf timeit -s 's="一件乒乓事事亏, 不乏串連产業, 万丈一争今为举, 其乎哀哉"*1000' --
's.find("乏")'
Median +- std dev: 143 ns +- 3 ns
---------------------------------------------------
$ python -m perf timeit -s 's="一件乒乓事事亏, 不乏串連产業, 万丈一争今为举, 其哀哉"*1000' --
's.find("乎")'
^^
(missing "乎")
Median +- std dev: 100 us +- 3 us
$ python -m perf timeit -s 's="一件乒乓事事亏, 不串連产業, 万丈一争今为举, 其乎哀哉"*1000' --
's.find("乏")'
^^ (missing "乏")
Median +- std dev: 1.67 us +- 0.05 us
----------
nosy: +louielu
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<http://bugs.python.org/issue24821>
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