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?
>
>> running in a particular group have no influence to others, not to mention the
>> extra overhead, does it really meaningful to account the stuff
>> hierarchically?
>
> AFAIU it's a requirement of cgroups to be hierarchical. All our other
> cgroup accounting is like that.
Ok, should respect the convention :-)
Regards,
Michael Wang
>
