[Bloat] bufferbloat paper

[David Lang]

On Tue, 8 Jan 2013, Hal Murray wrote:

>> Aside from their dataset having absolutely no reflection on the reality of
>> the 99.999% of home users running at speeds two or three or *more* orders of
>> magnitude below that speed, it seems like a nice paper.
>
> Did any of their 90 homes contained laptops connected over WiFi?

Almost certinly, but if the connection from the laptop to the AP is 54M and the 
connection from the AP to the Internet is 1G, you are not going to have a lot of 
buffering taking place. You will have no buffering on the uplink side, and while 
you will have some buffering on the downlink side, 54M is your slowest 
connection and it takes a significantly large amount of data in flight to fill 
that for seconds.

If your 54M wireless link is connected to a 768K DSL uplink (a much more typical 
connection), then it's very easy for the uplink side to generate many seconds 
worth of queueing delays, both from the high disparity in speeds and from the 
fact that the uplink is so slow.

David Lang