Re: [PATCH 3/3] sched: Implement interface for cgroup unified hierarchy

From: Tejun Heo
Date: Mon Aug 24 2015 - 17:40:11 EST


On Mon, Aug 24, 2015 at 02:19:29PM -0700, Paul Turner wrote:
> > Would it be possible for you to give realistic and concrete examples?
> > I'm not trying to play down the use cases but concrete examples are
> > usually helpful at putting things in perspective.
>
> I don't think there's anything that's not realistic or concrete about
> the example above. The "suppose" parts were only for qualifying the
> pool sizes for vcpu and non-vcpu threads above since discussion of
> implementation using nice is dependent on knowing these counts.

Hmm... I was hoping for an actual configurations and usage scenarios.
Preferably something people can set up and play with. I take that the
CPU intensive helper threads are usually IO workers? Is the scenario
where the VM is set up with a lot of IO devices and different ones may
consume large amount of CPU cycles at any given point?

Thanks.

--
tejun
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