[issue17787] Optimize pickling function dispatch in hot loops.

[Alexandre Vassalotti]

Alexandre Vassalotti added the comment:

In addition, we could bring back the switch dispatch based on the first letter of the type name. It does seem to speed up things as well but as much as the type cache optimization.

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nosy: +pitrou, serhiy.storchaka
title: Optimize pickling function lookups in hot loops. -> Optimize pickling function dispatch in hot loops.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17787>
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