Message 183599 - Python tracker

Message183599

Author	neologix
Recipients	eric.araujo, giampaolo.rodola, neologix, pitrou, rosslagerwall
Date	2013-03-06.16:13:55
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1362586435.65.0.968516842883.issue13564@psf.upfronthosting.co.za>
In-reply-to

Content
Here's the result of a benchmark sending a 1GB file over a Gb/s ethernet network: vanilla: real 0m9.446s user 0m0.493s sys 0m1.425s sendfile: real 0m9.143s user 0m0.055s sys 0m0.986s The total time doesn't vary much (the reduction above is just jitter). But it reduces user+sys time by almost a factor of 2. Note that is changed Giampaolo's patch to call sendfile on the whole file, not by block.

Content

Here's the result of a benchmark sending a 1GB file over a Gb/s ethernet network:
vanilla:
real    0m9.446s
user    0m0.493s
sys     0m1.425s

sendfile:
real    0m9.143s
user    0m0.055s
sys     0m0.986s

The total time doesn't vary much (the reduction above is just jitter).
But it reduces user+sys time by almost a factor of 2.

Note that is changed Giampaolo's patch to call sendfile on the whole file, not by block.

History
Date	User	Action	Args
2013-03-06 16:13:55	neologix	set	recipients: + neologix, pitrou, giampaolo.rodola, eric.araujo, rosslagerwall
2013-03-06 16:13:55	neologix	set	messageid: <1362586435.65.0.968516842883.issue13564@psf.upfronthosting.co.za>
2013-03-06 16:13:55	neologix	link	issue13564 messages
2013-03-06 16:13:55	neologix	create