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SubjectRe: [PATCH 1/4] numa: introduce per-cgroup numa balancing locality, statistic
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On 2019/7/12 下午5:42, Peter Zijlstra wrote:
> On Fri, Jul 12, 2019 at 05:11:25PM +0800, 王贇 wrote:
>>
>>
>> On 2019/7/12 下午3:58, Peter Zijlstra wrote:
>> [snip]
>>>>>
>>>>> Then our task t1 should be accounted to B (as you do), but also to A and
>>>>> R.
>>>>
>>>> I get the point but not quite sure about this...
>>>>
>>>> Not like pages there are no hierarchical limitation on locality, also tasks
>>>
>>> You can use cpusets to affect that.
>>
>> Could you please give more detail on this?
>
> Documentation/cgroup-v1/cpusets.txt
>
> Look for mems_allowed.

This is the attribute belong to cpuset cgroup isn't it?

Forgive me but I have no idea on how to combined this
with memory cgroup's locality hierarchical update...
parent memory cgroup do not have influence on mems_allowed
to it's children, correct?

What about we just account the locality status of child
memory group into it's ancestors?

Regards,
Michael Wang

>

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