Message 183552 - Python tracker

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Author	neologix
Recipients	alex, benjamin.peterson, brett.cannon, christian.heimes, neologix, pitrou, rhettinger, serhiy.storchaka
Date	2013-03-05.19:58:04
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<[email protected]>
In-reply-to

Content
> Here is an experimental patch. The speedup is ... measurable. It's likely to be more useful for dict and set, to avoid/limit rehashs. Also, the allocation overhead depends on the implementation, I suspect the gain would be more important with PyPy. FWIW, Java proposes this for lists and maps, but I'm not convinced exposing such tunables really makes sense for Python.

> Here is an experimental patch. The speedup is ... measurable.

It's likely to be more useful for dict and set, to avoid/limit rehashs.
Also, the allocation overhead depends on the implementation, I suspect the gain would be more important with PyPy.

FWIW, Java proposes this for lists and maps, but I'm not convinced exposing such tunables really makes sense for Python.

History
Date	User	Action	Args
2013-03-05 19:58:04	neologix	set	recipients: + neologix, brett.cannon, rhettinger, pitrou, christian.heimes, benjamin.peterson, alex, serhiy.storchaka
2013-03-05 19:58:04	neologix	set	messageid: <[email protected]>
2013-03-05 19:58:04	neologix	link	issue17338 messages
2013-03-05 19:58:04	neologix	create