Message 217331 - Python tracker

➜

This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author	pitrou
Recipients	josh.r, jtaylor, neologix, njs, pitrou, skrah, vstinner
Date	2014-04-27.23:35:23
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1398641724.09.0.972408836585.issue21233@psf.upfronthosting.co.za>
In-reply-to

Content
> Ok, now the real use case where it becomes faster: I implemented the > same optimization for bytearray. The real use case I envision is with huge powers of two. If I write: x = 2 ** 1000000 then all of x's bytes except the highest one will be zeros. If we map those to /dev/zero, it will be a massive saving for programs using huge powers of two.

> Ok, now the real use case where it becomes faster: I implemented the
> same optimization for bytearray.

The real use case I envision is with huge powers of two. If I write:

  x = 2 ** 1000000

then all of x's bytes except the highest one will be zeros. If we map those to /dev/zero, it will be a massive saving for programs using huge powers of two.

History
Date	User	Action	Args
2014-04-27 23:35:24	pitrou	set	recipients: + pitrou, vstinner, njs, skrah, neologix, jtaylor, josh.r
2014-04-27 23:35:24	pitrou	set	messageid: <1398641724.09.0.972408836585.issue21233@psf.upfronthosting.co.za>
2014-04-27 23:35:24	pitrou	link	issue21233 messages
2014-04-27 23:35:23	pitrou	create