linux-kernel - Re: [PATCH] oom: choose a more suitable process to kill while all processes are not killable

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Message-ID: <20191220071334.GB20332@dhcp22.suse.cz>
Date:   Fri, 20 Dec 2019 08:13:34 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     zgpeng.linux@...il.com
Cc:     akpm@...ux-foundation.org, hannes@...xchg.org,
        vdavydov.dev@...il.com, shakeelb@...gle.com, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        zgpeng <zgpeng@...cent.com>
Subject: Re: [PATCH] oom: choose a more suitable process to kill while all
 processes are not killable

On Fri 20-12-19 14:26:12, zgpeng.linux@...il.com wrote:
> From: zgpeng <zgpeng@...cent.com>
> 
> It has been found in multiple business scenarios that when a oom occurs
> in a cgroup, the process that consumes the most memory in the cgroup is 
> not killed first. Analysis of the reasons found that each process in the
> cgroup oom_score_adj is set to -998, oom_badness in the calculation of 
> points, if points is negative, uniformly set it to 1.

Can you provide an example of the oom report?
-- 
Michal Hocko
SUSE Labs