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Date:   Thu, 13 Jan 2022 10:52:41 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     =?utf-8?B?546L6LSH?= <yun.wang@linux.alibaba.com>
Cc:     Ingo Molnar <mingo@redhat.com>, Juri Lelli <juri.lelli@redhat.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
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        Cruz Zhao <cruzzhao@linux.alibaba.com>,
        Tianchen Ding <dtcccc@linux.alibaba.com>,
        linux-kernel@vger.kernel.org, Waiman Long <longman@redhat.com>
Subject: Re: [RFC PATCH] sched: introduce group balancer
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On Thu, Jan 13, 2022 at 03:18:01PM +0800, 王贇 wrote:

> > > How To Use:
> > > 
> > > To create partition, for example run:
> > >    echo disable > /proc/gb_ctrl
> > >    echo "0-15;16-31;32-47;48-63;" > /proc/gb_ctrl
> > >    echo enable > /proc/gb_ctrl
> > 
> > That's just never going to happen; please look at the cpuset partition
> > stuff.
> 
> Could you please give more details in here?
> 
> We actually looking forward a way to config several cpuset partition
> together, like here 4 cpuset partitions 0-15, 16-31, 32-47 and 48-63,
> but can't find any existing approach...

You could extend the partitions support:

 https://lkml.kernel.org/r/20211205183220.818872-1-longman@redhat.com

And have a parent partition type that soft balances between child
partitions or something.