Re: [RFC PATCH v2 0/6] SCHED_DEADLINE server infrastructure

[Juri Lelli]

Hi Pavel,

On 09/09/20 00:22, Pavel Machek wrote:
> Hi!
> 
> > This is RFC v2 of Peter's SCHED_DEADLINE server infrastructure
> > implementation [1].
> > 
> > SCHED_DEADLINE servers can help fixing starvation issues of low priority tasks (e.g., 
> > SCHED_OTHER) when higher priority tasks monopolize CPU cycles. Today we have RT 
> > Throttling; DEADLINE servers should be able to replace and improve that.
> 
> It would be worth noting what "server" is in this context.

It comes from Constant Bandwidth Server (CBS), that SCHED_DEADLINE is
implementing [1].

> 
> It is not white box with CPU inside, it is not even an userland process, afaict.
> 
> Subject is quite confusing.

Best,
Juri

1 - https://elixir.bootlin.com/linux/latest/source/Documentation/scheduler/sched-deadline.rst#L42