Message 234683 - Python tracker

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Author	serhiy.storchaka
Recipients	josh.r, pitrou, rhettinger, serhiy.storchaka
Date	2015-01-25.19:55:50
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1422215750.5.0.784205166946.issue23282@psf.upfronthosting.co.za>
In-reply-to

Content
What about just removing the dummy test inside the hash test? The benefit is smaller but statistically sygnificant and always positive. $ ./python -m timeit -s "a = list(range(10**6)); s1 = set(a); s2 = set(a)" -- "s1 <= s2" Unpatched: 10 loops, best of 3: 39.3 msec per loop Patched: 10 loops, best of 3: 38.7 msec per loop

What about just removing the dummy test inside the hash test? The benefit is smaller but statistically sygnificant and always positive.

$ ./python -m timeit -s "a = list(range(10**6)); s1 = set(a); s2 = set(a)" -- "s1 <= s2"

Unpatched: 10 loops, best of 3: 39.3 msec per loop
Patched: 10 loops, best of 3: 38.7 msec per loop

History
Date	User	Action	Args
2015-01-25 19:55:50	serhiy.storchaka	set	recipients: + serhiy.storchaka, rhettinger, pitrou, josh.r
2015-01-25 19:55:50	serhiy.storchaka	set	messageid: <1422215750.5.0.784205166946.issue23282@psf.upfronthosting.co.za>
2015-01-25 19:55:50	serhiy.storchaka	link	issue23282 messages
2015-01-25 19:55:50	serhiy.storchaka	create