[issue16389] re._compiled_typed's lru_cache causes significant degradation of the mako_v2 bench
Serhiy Storchaka
report at bugs.python.org
Tue Nov 6 17:46:02 CET 2012
Serhiy Storchaka added the comment:
> I think the lru_cache should be kept if possible (i.e. I'm -0.5 on your patch).
This patch is only to show the upper level to which should be sought. I tried to optimize lru_cache(), but got only 15%. I'm afraid that serious optimization is impossible
without rewriting lru_cache() on C.
> 2) avoid using it for regular expressions compiled with re.compile;
I do not see how it can significantly affect performance.
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