Message 259615 - Python tracker

Message259615

Author	yselivanov
Recipients	pitrou, serhiy.storchaka, vstinner, yselivanov
Date	2016-02-05.01:54:59
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1454637300.25.0.0795862049025.issue26288@psf.upfronthosting.co.za>
In-reply-to

Content
The attached patch drastically speeds up PyLong_AsDouble for single digit longs: -m timeit -s "x=2" "x2.2 + 2 + x2.5 + 1.0 - x / 2.0 + (x+0.1)/(x-0.1)2 + (x+10)(x-30)" with patch: 0.414 without: 0.612 spectral_norm: 1.05x faster. The results are even better when paired with patch from issue #21955.

Content

The attached patch drastically speeds up PyLong_AsDouble for single digit longs:


-m timeit -s "x=2" "x*2.2 + 2 + x*2.5 + 1.0 - x / 2.0 + (x+0.1)/(x-0.1)*2 + (x+10)*(x-30)"

with patch: 0.414
without: 0.612

spectral_norm: 1.05x faster.    The results are even better when paired with patch from issue #21955.

History
Date	User	Action	Args
2016-02-05 01:55:00	yselivanov	set	recipients: + yselivanov, pitrou, vstinner, serhiy.storchaka
2016-02-05 01:55:00	yselivanov	set	messageid: <1454637300.25.0.0795862049025.issue26288@psf.upfronthosting.co.za>
2016-02-05 01:54:59	yselivanov	link	issue26288 messages
2016-02-05 01:54:59	yselivanov	create