[issue18594] C accelerator for collections.Counter is slow

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Are there any cases where the counter class with the C accelerator is faster than the pure Python version? Here is a benchmarking script (modification of Roy Smith's script [1]) and looks as the pure Python version is faster even for data that has not many unique entries.

[1] http://permalink.gmane.org/gmane.comp.python.general/738820

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Added file: http://bugs.python.org/file31085/counterbench.py

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