Message 174993 - Python tracker

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Author	serhiy.storchaka
Recipients	barry, brett.cannon, ezio.melotti, jcea, ncoghlan, pitrou, pjenvey, rhettinger, serhiy.storchaka, zzzeek
Date	2012-11-06.16:46:01
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<201211061845.45038.storchaka@gmail.com>
In-reply-to	<1352140205.63.0.169596192108.issue16389@psf.upfronthosting.co.za>

Content
> 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.

> 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.

History
Date	User	Action	Args
2012-11-06 16:46:02	serhiy.storchaka	set	recipients: + serhiy.storchaka, barry, brett.cannon, rhettinger, jcea, ncoghlan, pitrou, pjenvey, ezio.melotti, zzzeek
2012-11-06 16:46:02	serhiy.storchaka	link	issue16389 messages
2012-11-06 16:46:01	serhiy.storchaka	create