Message 174563 - Python tracker

Message174563

Author	brett.cannon
Recipients	brett.cannon, ezio.melotti, ncoghlan, pitrou, pjenvey, rhettinger, zzzeek
Date	2012-11-02.20:03:28
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1351886608.6.0.601380985485.issue16389@psf.upfronthosting.co.za>
In-reply-to

Content
Would be interesting to know what speed difference would occur if the statistics gathering was optional and turned off. As for _make_key(), I wonder if ``(args, tuple(sorted(kwd.items())))`` as a key would be any faster as a tuple's hash is derived from its contents and not the tuple itself (if I remember correctly). You could even special case when len(kwds) == 0 to skip the sorted(kwd.items()) overhead if it is worth it performance-wise.

Content

Would be interesting to know what speed difference would occur if the statistics gathering was optional and turned off.

As for _make_key(), I wonder if ``(args, tuple(sorted(kwd.items())))`` as a key would be any faster as a tuple's hash is derived from its contents and not the tuple itself (if I remember correctly). You could even special case when len(kwds) == 0 to skip the sorted(kwd.items()) overhead if it is worth it performance-wise.

History
Date	User	Action	Args
2012-11-02 20:03:28	brett.cannon	set	recipients: + brett.cannon, rhettinger, ncoghlan, pitrou, pjenvey, ezio.melotti, zzzeek
2012-11-02 20:03:28	brett.cannon	set	messageid: <1351886608.6.0.601380985485.issue16389@psf.upfronthosting.co.za>
2012-11-02 20:03:28	brett.cannon	link	issue16389 messages
2012-11-02 20:03:28	brett.cannon	create