[Bloat] Fw: video about QFQ+ and DRR

[MUSCARIELLO Luca OLNC/OLN]

Hi,

nice demo.

While I am not surprised about the good performance of QFQ+,
I do not understand why DRR (I guess linux SFQ, i.e. per-flow DRR+SQdrop)
works so bad.

If the two schedulers are serving the same kind of flow (IP 5-tuple) the 
level
of protection to low rate (< fair rate) flows should be the same (approx).

Maybe Paolo said that in the talk and I might have missed something.
Is QFQ+ working on a different definition of flow than DRR?, and is DRR 
Linux SFQ?


Luca



On 08/08/2013 06:09 PM, Luigi Rizzo wrote:
> very nice and convincing demo.
>
> good job paolo!
>
> luigi
>
> On Thu, Aug 8, 2013 at 5:49 PM, Stephen Hemminger 
> <stephen at networkplumber.org <mailto:stephen at networkplumber.org>> wrote:
>
>     Thought this might be interesting to this list.
>     ---
>     From: Paolo Valente
>
>     Hi,
>     I just uploaded the following 7-minute video showing the QoS and
>     the execution time of QFQ+, compared to those of DRR:
>     http://youtu.be/bG2ACt4na7A
>
>     I would like to advertise this video. If I may ask for your help,
>     do you think that linux-kernel, linux-net or linux-netdev may be
>     appropriate?
>     Any other suggestion is more than welcome.
>
>     Thanks,
>     Paolo
>
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>
> -- 
> -----------------------------------------+-------------------------------
>  Prof. Luigi RIZZO, rizzo at iet.unipi.it <mailto:rizzo at iet.unipi.it>  . 
> Dip. di Ing. dell'Informazione
> http://www.iet.unipi.it/~luigi/ <http://www.iet.unipi.it/%7Eluigi/>   
>      . Universita` di Pisa
>  TEL      +39-050-2211611               . via Diotisalvi 2
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