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@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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