Subject: Re: knob to disable locally-originating qdisc optimisation?

From: Stephen Hemminger <[email-masked]>
Date: Tue, 16 May 2023 20:02:51 -0700

On Wed, 17 May 2023 01:47:10 +0200 (CEST)
Thorsten Glaser <[email-masked]> wrote:

> On Tue, 16 May 2023, Stephen Hemminger wrote:
> 
> >Sounds like it could be extension or part of existing netem.  
> 
> No, it does so much more… very extensive reporting to userspace
> using debugfs/relayfs, for example, and very specific extra
> behaviour. We did look at netem, but it caused trouble.
> 
> bye,
> //mirabilos

The bottom line is the upstream kernel is very unlikely to accept
an knob that is only useful with a non upstream kernel component.