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Sender: Tejun Heo <htejun@gmail.com>
Date:   Thu, 20 Jul 2023 09:57:09 -1000
From:   Tejun Heo <tj@kernel.org>
To:     Johannes Weiner <hannes@cmpxchg.org>
Cc:     Yosry Ahmed <yosryahmed@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michal Hocko <mhocko@kernel.org>,
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        Greg Thelen <gthelen@google.com>, linux-kernel@vger.kernel.org,
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Subject: Re: [RFC PATCH 0/8] memory recharging for offline memcgs
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 <20230720153515.GA1003248@cmpxchg.org>
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On Thu, Jul 20, 2023 at 11:35:15AM -0400, Johannes Weiner wrote:
> It could also be argued that if you don't want to lose control over a
> set of resources, then maybe don't delete their control domain while
> they are still alive and in use. For example, when restarting a
> workload, and the new instance is expected to have largely the same
> workingset, consider reusing the cgroup instead of making a new one.

Or just create a nesting layer so that there's a cgroup which represents the
persistent resources and a nested cgroup instance inside representing the
current instance.

Thanks.

-- 
tejun