Re: [PATCH RFC v2 net-next 0/5] net: Qdisc backpressure infrastructure

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On Mon, 29 Aug 2022 09:53:17 -0700 Cong Wang wrote:
> > Similarly to Eric's comments on v1 I'm not seeing the clear motivation
> > here. Modern high speed UDP users will have a CC in user space, back
> > off and set transmission time on the packets. Could you describe your
> > _actual_ use case / application in more detail?  
> 
> Not everyone implements QUIC or CC, it is really hard to implement CC
> from scratch. This backpressure mechnism is much simpler than CC (TCP or
> QUIC), as clearly it does not deal with any remote congestions.
> 
> And, although this patchset only implements UDP backpressure, it can be
> applied to any other protocol easily, it is protocol-independent.

No disagreement on any of your points. But I don't feel like 
you answered my question about the details of the use case.



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