Message 105823 - Python tracker (original) (raw)

Message105823

Author	pitrou
Recipients	belopolsky, pitrou, rhettinger, spiv
Date	2010-05-15.20:53:36
SpamBayes Score	0.0064337254
Marked as misclassified	No
Message-id	1273956818.32.0.786833508331.issue8685@psf.upfronthosting.co.za
In-reply-to

Content
The current patch gives much smaller benefits than the originally posted benchmarks, although they are still substantial: $ ./python -m timeit -s "a = set(range(100000)); sd = a.difference; b = set(range(1000))" "sd(b)" - before: 5.56 msec per loop - after: 3.18 msec per loop $ ./python -m timeit -s "a = set(range(1000000)); sd = a.difference; b = set(range(10))" "sd(b)" - before: 67.9 msec per loop - after: 41.8 msec per loop

Content

The current patch gives much smaller benefits than the originally posted benchmarks, although they are still substantial: $ ./python -m timeit -s "a = set(range(100000)); sd = a.difference; b = set(range(1000))" "sd(b)" - before: 5.56 msec per loop - after: 3.18 msec per loop $ ./python -m timeit -s "a = set(range(1000000)); sd = a.difference; b = set(range(10))" "sd(b)" - before: 67.9 msec per loop - after: 41.8 msec per loop

History
Date	User	Action	Args
2010-05-15 20:53:38	pitrou	set	recipients: + pitrou, rhettinger, spiv, belopolsky
2010-05-15 20:53:38	pitrou	set	messageid: 1273956818.32.0.786833508331.issue8685@psf.upfronthosting.co.za
2010-05-15 20:53:36	pitrou	link	issue8685 messages
2010-05-15 20:53:36	pitrou	create