Issue 2015: Possible optimisations in kwargs handling (original) (raw)

Issue2015

Created on 2008-02-06 00:45 by amaury.forgeotdarc, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (3)
msg62085 - (view) Author: Amaury Forgeot d'Arc (amaury.forgeotdarc) * (Python committer) Date: 2008-02-06 00:45
This is a reminder for the comment on top of ceval.c: /* XXX TO DO: XXX speed up searching for keywords by using a dictionary XXX document it! */ It was also suggested to disallow subclasses of str in variable names, in order to optimize comparisons. This restriction is not necessary if a dict lookup is used: comparisons are less frequent and will often succeed when comparing pointers of interned strings.
msg62267 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2008-02-11 00:40
Amaury, you may take a look at the patch in issue #1819. Also, dict lookups have a big overhead compared to raw pointer compares, I'm not sure naively converting all kwargs handling to dict lookups would make things faster.
msg98083 - (view) Author: Brian Curtin (brian.curtin) * (Python committer) Date: 2010-01-20 16:14
This was handled in r65241 as a result of #1819.
History
Date User Action Args
2022-04-11 14:56:30 admin set github: 46299
2010-01-20 16:14:22 brian.curtin set status: open -> closedsuperseder: Speed hack for function calls with named parametersnosy: + brian.curtinmessages: + resolution: fixedstage: resolved
2008-02-11 00:40:19 pitrou set nosy: + pitroumessages: +
2008-02-06 12:06:30 christian.heimes set priority: normalcomponents: + Interpreter Core
2008-02-06 00:45:14 amaury.forgeotdarc create