Re: [PATCH v11 7/9] cpuset: Expose cpus.effective and mems.effective on cgroup v2 root

From: Waiman Long
Date: Fri Jul 27 2018 - 17:21:44 EST


On 07/20/2018 01:09 PM, Waiman Long wrote:
> On 07/20/2018 12:37 PM, Peter Zijlstra wrote:
>> On Fri, Jul 20, 2018 at 12:19:29PM -0400, Waiman Long wrote:
>>> I am not against the idea of making it hierarchical eventually. I am
>>> just hoping to get thing going by merging the patchset in its current
>>> form and then we can make it hierarchical in a followup patch.
>> Where's the rush? Why can't we do this right in one go?
> For me, the rush comes from RHEL8 as it is a goal to have a fully
> functioning cgroup v2 in that release.
>
> I also believe that most of the use cases of partition can be satisfied
> with partitions at the first level children. Getting hierarchical
> partition right may drag on for half a year, maybe, giving our history
> with cpu v2 controller. No matter what we do to enable hierarchical
> partition in the future, the current model of using a partition flag is
> intuitive enough that it won't be changed at least for the first level
> children.

Peter, are you OK that or do you still want to have hierarchical
partition done before submission?

Thanks,
Longman