Re: [tsvwg] [aqm] [Bloat] how much of a problem is buffer bloat today?

[Mirja Kuehlewind <[e-mail]>]

Hi,

+1. Would be nice to have such statictics available for the user in every OS!

Mirja


On Friday 22 March 2013 05:27:31 Mikael Abrahamsson wrote:
> On Thu, 21 Mar 2013, Jim Gettys wrote:
> > Every more modern TCP can easily fill any sized buffer given time with a
> > single TCP connection.
>
> I agree with this, I made this discovery myself back in 2004 or so, and
> had to implement Fairqueue and WRED on my home connection to make it
> bearable to use any interactive application while transferring files.
>
> In IETF75 in Stockholm in 2009, I made proposals in both TCP and at open
> mic in one of the sessions, that I would like to see statistics and
> performance numbers on packet loss, delay variation etc from actual
> traffic. The IP stack has great insight in what the network conditions are
> (especially with TCP Timestamping), but as far as I know it's not really
> exported in any usable format to the user. My idea was to have some kind
> of dashboard for the user to show if currently the network was the
> limiting factor, if the tcp window was maxed out etc. Would also be nice
> if there was output that could be cut/pasted and attached to a fault
> report in case the customer talks to customer support. It would be good if
> this was actually a standard so all OSes did the same.
>
> I am not aware of any such work going on, so I'd like to know if anyone
> else is aware of work in this area?



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Dipl.-Ing. Mirja Kühlewind
Institute of Communication Networks and Computer Engineering (IKR)
University of Stuttgart, Germany
Pfaffenwaldring 47, D-70569 Stuttgart

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