[Bloat] the observed sack oddity

[David Täht]

Of course, it would help if I posted a link to the screenshots!

http://www.teklibre.com/~d/sackoddity/

On 10/11/2011 03:09 PM, David Täht wrote:
> I have put up screenshots of tcptrace -G and xplot.org's analysis of my
> most recent capture of an ipv6 connection over freebox (wired) from a
> debloat-testing kernel here in france (pre 3.1 by a lot) to a 2.6.16
> kernel (the aformentioned netsonar box) in redwood city, ca, both
> running tcp cubic, over ipv6.
>
> at first glance, it looked a lot like a classic bufferbloat trace, with
> complete with periodic collapses and cubic increasing the window.
>
> Then I noticed the sacks.
>
> I also have a trace taken between the debloat-testing box and a cerowrt
> box (running linux 3.04), both running westwood, which shows
> considerably less undesirable behavior, and I will repeat that test with
> cubic this evening and post additional data tomorrow morning.
>


-- 
Dave Täht

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