Re: [PATCH 1/1] sched/deadline: Fix fair_server runtime calculation formula

[Juri Lelli]

On 17/06/25 16:14, Peter Zijlstra wrote:
> On Tue, Jun 17, 2025 at 02:33:15PM +0200, Juri Lelli wrote:

...

> > To me it looks like we want this (no scaling) for fair_server (and
> > possibly scx_server?) as for them we are only looking into a 'fixed
> > time' type of isolation. Full fledged servers (hierarchical scheduling)
> > maybe have it configurable, or enabled by default as a start (as we have
> > it today).
> 
> Right. Then we should write the above like:
> 
> 	scaled_delta_exec = delta_exec;
> 	if (!dl_se->dl_server)
> 		scaled_delta_exec = dl_scaled_delta_exec(rq, dl_se, delta_exec);
> 
> and let any later server users add bits on if they want more options.

Works for me. Looks cleaner also.

Kuyo, can you please update your patch then?

Thanks,
Juri