Re: [Bloat] [Make-wifi-fast] Van Jacobson's slides on timing wheels at netdevconf

[Luca Muscariello <luca.muscariello@gmail.com>]

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and C) you can implement any packet scheduler using a timing wheel using
virtual times.

On Fri, Jul 20, 2018 at 4:09 PM Dave Taht <dave.taht@gmail.com> wrote:

>
> https://www.files.netdevconf.org/d/46def75c2ef345809bbe/files/?p=/Evolving%20from%20AFAP%20%E2%80%93%20Teaching%20NICs%20about%20time.pdf
>
> Talking about replacing queues with timing wheels.
>
> I will refrain from commenting other than noting A) I like it. We
> essentially have limits in the OS on packet scheduling that make it
> harder and harder to have sub 2ms, much less sub 10usec, queues with
> the existing qdiscs and pacing systems B) that NIC support seems
> needed. I can think of a lot of things I'd like to have in a NIC
> (which certainly include default timestamping on rx and multiple kinds
> of X-tuple hash) - but hadn't thought about replacing queues entirely!
>
> I haven't read up on carousel yet either.
>
> Look forward to seeing the video when it comes out.
>
> --
>
> Dave Täht
> CEO, TekLibre, LLC
> http://www.teklibre.com
> Tel: 1-669-226-2619
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