linux-kernel - Re: [PATCH 1/4] numa: introduce per-cgroup numa balancing locality, statistic

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Message-ID: <20190712094214.GR3402@hirez.programming.kicks-ass.net>
Date:   Fri, 12 Jul 2019 11:42:14 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     王贇 <yun.wang@...ux.alibaba.com>
Cc:     hannes@...xchg.org, mhocko@...nel.org, vdavydov.dev@...il.com,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, mcgrof@...nel.org, keescook@...omium.org,
        linux-fsdevel@...r.kernel.org, cgroups@...r.kernel.org,
        Mel Gorman <mgorman@...e.de>, riel@...riel.com
Subject: Re: [PATCH 1/4] numa: introduce per-cgroup numa balancing locality,
 statistic

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.