Re: [RESEND PATCH v3 0/7] Improve scheduler scalability for fast path

[Peter Zijlstra]

On Mon, Jul 01, 2019 at 02:55:52PM +0100, Patrick Bellasi wrote:
> On 01-Jul 11:02, Peter Zijlstra wrote:

> > Hmmm?
> 
> Just one more requirement I think it's worth to consider since the
> beginning: CGroups support
> 
> That would be very welcome interface. Just because is so much more
> convenient (and safe) to set these bias on a group of tasks depending
> on their role in the system.
> 
> Do you have any idea on how we can expose such a "lantency-nice"
> property via CGroups? It's very similar to cpu.shares but it does not
> represent a resource which can be partitioned.

If the latency_nice idea lives; exactly like the normal nice? That is;
IIRC cgroupv2 has a nice value interface (see cpu_weight_nice_*()).

But yes, this isn't a resource per se; just a shared attribute like
thing.