Message 160663 - Python tracker

Message160663

Author	loewis
Recipients	alanmcintyre, eric.araujo, loewis, mark.dickinson, meador.inge, pleed, serhiy.storchaka, terry.reedy, ubershmekel
Date	2012-05-14.20:36:35
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<4FB16CD2.80706@v.loewis.de>
In-reply-to	<1337016833.3422.28.camel@raxxla>

Content
> This is definitely a padding issue. All uncompressed files are located > so that the data starts with a 4-byte boundary (1190+30+15+1=1236, 27486 > +30+17+3=27536, etc). This is, probably, allows the use of mmap for the > resources. That can't possibly be the reason. mmap requires 4k (4096) alignment (on x86; more than that on SPARC). Perhaps there is a reason for 4-alignment - but it can't be mmap-

Content

> This is definitely a padding issue. All uncompressed files are located
> so that the data starts with a 4-byte boundary (1190+30+15+1=1236, 27486
> +30+17+3=27536, etc). This is, probably, allows the use of mmap for the
> resources.

That can't possibly be the reason. mmap requires 4k (4096) alignment (on 
x86; more than that on SPARC).

Perhaps there is a reason for 4-alignment - but it can't be mmap-

History
Date	User	Action	Args
2012-05-14 20:36:36	loewis	set	recipients: + loewis, terry.reedy, mark.dickinson, alanmcintyre, eric.araujo, ubershmekel, meador.inge, serhiy.storchaka, pleed
2012-05-14 20:36:35	loewis	link	issue14315 messages
2012-05-14 20:36:35	loewis	create