Message 163350 - Python tracker

Message163350

Author	loewis
Recipients	brian.curtin, loewis, neologix, pitrou, tim.golden
Date	2012-06-21.17:10:37
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1340298639.97.0.336922882398.issue13483@psf.upfronthosting.co.za>
In-reply-to

Content
Here is a benchmark. Based on my assumption that this patch may reduce allocation overheads due to minimizing padding+fragmentation, it allocates a lot of memory, and then waits 20s so you can check in the process explorer what the "Commit Size" of the process is. For the current 3.3 tree, in 32-bit mode, on a 64-bit Windows 7 installation, I get 464,756K for the unpatched version, and 450,436K for the patched version. This is a 3% saving, which seems good enough for me.

Content

Here is a benchmark. Based on my assumption that this patch may reduce allocation overheads due to minimizing padding+fragmentation, it allocates a lot of memory, and then waits 20s so you can check in the process explorer what the "Commit Size" of the process is.

For the current 3.3 tree, in 32-bit mode, on a 64-bit Windows 7 installation, I get 464,756K for the unpatched version, and 450,436K for the patched version.

This is a 3% saving, which seems good enough for me.

History
Date	User	Action	Args
2012-06-21 17:10:40	loewis	set	recipients: + loewis, pitrou, tim.golden, brian.curtin, neologix
2012-06-21 17:10:39	loewis	set	messageid: <1340298639.97.0.336922882398.issue13483@psf.upfronthosting.co.za>
2012-06-21 17:10:39	loewis	link	issue13483 messages
2012-06-21 17:10:37	loewis	create