Re: Re: Re: Re: Re: Re: [PATCH v1] sched/numa: add per-process numa_balancing

[Gang Li]

On 11/10/21 12:26 AM, Mel Gorman wrote:
> Of those two, I agree with the second one, it would be tricky to implement
> but the first one is less clear. This is based on an assumption. If prctl
> exists to enable/disable NUMA baalancing, it's possible that someone
> else would want to control NUMA balancing on a cgroup basis instead of
> globally which would run into the same type of concerns -- different
> semantics depending on the global tunable.

Hi!

You talk about the "semantics" of NUMA balancing between global, cgroup 
and process. While I read the kernel doc "NUMA Memory Policy", it occur 
to me that we may have a "NUMA Balancing Policy".

Since you are the reviewer of CONFIG_NUMA_BALANCING. I would like to 
discuss the need for introducing "NUMA Balancing Policy" with you. Is 
this worth doing?