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Author gregory.p.smith
Recipients gregory.p.smith, neologix, pitrou, python-dev, sbt, serhiy.storchaka, vstinner
Date 2013-12-08.19:05:41
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Message-id <1386529542.24.0.534353452244.issue19929@psf.upfronthosting.co.za>
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Content 
I saw a small regression over 4k when using a 64k buffer on one of my machines (dual core amd64 linux).  With 32k everything (amd64 linux, armv7l 32-bit linux, 64-bit os x 10.6) showed a dramatic improvement on the microbenchmark.  approaching 50% less cpu use in many cases.

i doubt applications will notice as much as they're likely to be dominated by their own application code rather than the subprocess internals.

re: 3.3 or not, true, but since it doesn't change any APIs and is minor I did it anyways.  If you think it doesn't belong there, leave it to the release manager to back out.  This and the #19506 change should be invisible to users.
History
Date User Action Args
2013-12-08 19:05:42gregory.p.smithsetrecipients: + gregory.p.smith, pitrou, vstinner, neologix, python-dev, sbt, serhiy.storchaka
2013-12-08 19:05:42gregory.p.smithsetmessageid: <1386529542.24.0.534353452244.issue19929@psf.upfronthosting.co.za>
2013-12-08 19:05:42gregory.p.smithlinkissue19929 messages
2013-12-08 19:05:41gregory.p.smithcreate