linux-kernel - Re: [PATCH v2] mm: memcontrol: protect the memory in cgroup from being oom killed

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Date:   Fri, 9 Dec 2022 13:27:15 +0100
From:   Michal Hocko <mhocko@...e.com>
To:     程垲涛 Chengkaitao Cheng 
        <chengkaitao@...iglobal.com>
Cc:     chengkaitao <pilgrimtao@...il.com>,
        "tj@...nel.org" <tj@...nel.org>,
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        "roman.gushchin@...ux.dev" <roman.gushchin@...ux.dev>,
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Subject: Re: [PATCH v2] mm: memcontrol: protect the memory in cgroup from
 being oom killed

On Fri 09-12-22 09:25:38, Michal Hocko wrote:
> On Fri 09-12-22 05:07:15, 程垲涛 Chengkaitao Cheng wrote:
[...]
> > Here is a simple example. In a docker container, users can divide all processes 
> > into two categories (important and normal), and put them in different cgroups. 
> > One cgroup's oom.protect is set to "max", the other is set to "0". In this way, 
> > important processes in the container can be protected.
> 
> That is effectivelly oom_score_adj = OOM_SCORE_ADJ_MIN - 1 to all

Sorry that should have been OOM_SCORE_ADJ_MIN + 1

-- 
Michal Hocko
SUSE Labs