Re: [PATCH v3 6/8] sched/fair: Add sched group latency support

[Vincent Guittot]

On Tue, 13 Sept 2022 at 00:18, Tejun Heo <tj@xxxxxxxxxx> wrote:
>
> Hello,
>
> On Fri, Sep 09, 2022 at 03:03:07PM +0200, Vincent Guittot wrote:
> > +     {
> > +             .name = "latency",
> > +             .read_s64 = cpu_latency_read_s64,
> > +             .write_s64 = cpu_latency_write_s64,
> > +     },
>
> You're still using the nice value here, right? If so, can you please use the
> filename "latency.nice" so that it's consistent with "weight.nice"?

This cpu.latency is not a nice priority but the signed offset used by
the scheduler at wakeup. On previous version you raised concern about
having a nice value for cgroup so I removed it for cgroup and directly
exposed the latency offset with cpu.latency similarly to the weight
that is exposed with cpu.shares.

Vincent
>
> Thanks.
>
> --
> tejun