Re: [Question] Do we need remote charging for cpu and cpuacct subsys?

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Hello,

On Fri, Jul 02, 2021 at 08:26:27AM -0000, Hao Lee wrote:
> memcg currently has a remote charging mechanism that can charge usage to other
> memcg instead of the one the task belongs to.
> 
> In our environment, we need to account the cpu usage consumed by some kworkers
> to a specific cgroup. Thus, we want to introduce a remote-charging mechanism to
> cpu and cpuacct subsys in our kernel.
> 
> I want to know if the community has a plan to do this?
> What will the community approach look like?

Yeah, we need sth like this to account for cpu cycles spent in commont path
but caused by specific cgroups - e.g. memory reclaim, net packet rx and so
on. There were some mentions of needing somthing like that but haven't been
any patchsets or concrete efforts that I know of.

Thanks.

-- 
tejun



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