[Rpm] the de-evolution of rpm

Christoph Paasch cpaasch at apple.com
Fri Apr 14 16:15:19 EDT 2023


Hello Dave,

> On Apr 13, 2023, at 3:13 PM, Dave Taht via Rpm <rpm at lists.bufferbloat.net> wrote:
> 
> I have not been paying a lot of attention here of late. I objected to
> the enormous number of flows goresponsiveness was doing, and strongly
> suggested it run to time of first loss or mark.
> I find 4 flows enough
> to stress out a network.

4 flows should often be enough to utilize a network at its full capacity. However, are 4 flows going to provide you stable working conditions in such a way that the bottleneck’s buffers are entirely full over an extended period without fluctuations due to the congestion-response of the individual flows? Also, what is the convergence time to reach stable working conditions and full buffer utilization at 4 flows?

Now, that being said. I don’t think that the exact number of flows is that important. They just need to be enough to fill the buffers in a stable way. All nit-picking on the number of flows just distracts us from actually solving problems on the Internet.

> Anyway, is the structure of networkQuality
> changing any in ippm?

Yes, the IETF-draft is continuously evolving. You can read the latest version at https://datatracker.ietf.org/doc/html/draft-ietf-ippm-responsiveness.

Discussions around the methodology and the development of the tools as well as addressing issues we find in open-source networking stacks is all happening at the “Network-quality community”, at https://github.com/network-quality/community/wiki. We have a slack-channel and a weekly meeting. Everyone who is actively working on development is invited to join our slack-channel and attend the weekly meetings. (The "active development" is a strong requirement )


Cheers,
Christoph

> Some context here:
> 
> https://www.reddit.com/r/amazoneero/comments/12ksu9d/sqm_optimizing_for_videoconferencing_and_gaming/jg4zsq2/?context=8&depth=9
> 
> 
> -- 
> AMA March 31: https://www.broadband.io/c/broadband-grant-events/dave-taht
> Dave Täht CEO, TekLibre, LLC
> _______________________________________________
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> Rpm at lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/rpm

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