Message 177436 - Python tracker

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Author	serhiy.storchaka
Recipients	mark.dickinson, rhettinger, serhiy.storchaka
Date	2012-12-13.20:54:35
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1355432076.17.0.54183868892.issue16674@psf.upfronthosting.co.za>
In-reply-to

Content
The proposed patch adds a fast patch for generating small integers (the most common use case). Microbenchmark: $ ./python -m timeit -s "import random; r=random.getrandbits; n=30" "r(n);r(n);r(n);r(n);r(n);r(n);r(n);r(n);r(n);r(n)" Non patched: 4.27 usec per loop Patched: 2.97 usec per loop

The proposed patch adds a fast patch for generating small integers (the most common use case).

Microbenchmark:
$ ./python -m timeit -s "import random; r=random.getrandbits; n=30"  "r(n);r(n);r(n);r(n);r(n);r(n);r(n);r(n);r(n);r(n)"

Non patched: 4.27 usec per loop
Patched: 2.97 usec per loop

History
Date	User	Action	Args
2012-12-13 20:54:36	serhiy.storchaka	set	recipients: + serhiy.storchaka, rhettinger, mark.dickinson
2012-12-13 20:54:36	serhiy.storchaka	set	messageid: <1355432076.17.0.54183868892.issue16674@psf.upfronthosting.co.za>
2012-12-13 20:54:35	serhiy.storchaka	link	issue16674 messages
2012-12-13 20:54:35	serhiy.storchaka	create