Re: [PATCH v2] mm, memcg: skip killing processes under memcg protection at first scan

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To: Yafang Shao <laoar.shao@xxxxxxxxx>
Subject: Re: [PATCH v2] mm, memcg: skip killing processes under memcg protection at first scan
From: Michal Hocko <mhocko@xxxxxxxx>
Date: Wed, 21 Aug 2019 08:44:52 +0200
Cc: Roman Gushchin <guro@xxxxxx>, "akpm@xxxxxxxxxxxxxxxxxxxx" <akpm@xxxxxxxxxxxxxxxxxxxx>, "linux-mm@xxxxxxxxx" <linux-mm@xxxxxxxxx>, Randy Dunlap <rdunlap@xxxxxxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, Vladimir Davydov <vdavydov.dev@xxxxxxxxx>, Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>, Souptick Joarder <jrdr.linux@xxxxxxxxx>, Yafang Shao <shaoyafang@xxxxxxxxxxxxxx>
In-reply-to: <CALOAHbBSUPkw-XZBGooGZ9o7HcD5fbavG0bPDFCnYAFqqX8MGA@mail.gmail.com>
References: <1566177486-2649-1-git-send-email-laoar.shao@gmail.com> <20190820213905.GB12897@tower.DHCP.thefacebook.com> <CALOAHbBSUPkw-XZBGooGZ9o7HcD5fbavG0bPDFCnYAFqqX8MGA@mail.gmail.com>
User-agent: Mutt/1.10.1 (2018-07-13)

On Wed 21-08-19 09:00:39, Yafang Shao wrote:
[...]
> More possible OOMs is also a strong side effect (and it prevent us
> from using it).

So why don't you use low limit if the guarantee side of min limit is too
strong for you?
-- 
Michal Hocko
SUSE Labs

Follow-Ups:
- Re: [PATCH v2] mm, memcg: skip killing processes under memcg protection at first scan
  - From: Yafang Shao

References:
- [PATCH v2] mm, memcg: skip killing processes under memcg protection at first scan
  - From: Yafang Shao
- Re: [PATCH v2] mm, memcg: skip killing processes under memcg protection at first scan
  - From: Roman Gushchin
- Re: [PATCH v2] mm, memcg: skip killing processes under memcg protection at first scan
  - From: Yafang Shao

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