Re: [PATCH] memcg: Add a new sysctl parameter for automatically setting memory.high

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To: Waiman Long <longman@xxxxxxxxxx>
Subject: Re: [PATCH] memcg: Add a new sysctl parameter for automatically setting memory.high
From: Michal Hocko <mhocko@xxxxxxxx>
Date: Mon, 24 Jun 2024 18:46:42 +0200
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, Muchun Song <muchun.song@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Shakeel Butt <shakeel.butt@xxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, cgroups@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, Alex Kalenyuk <akalenyu@xxxxxxxxxx>, Peter Hunt <pehunt@xxxxxxxxxx>, linux-doc@xxxxxxxxxxxxxxx
In-reply-to: <d97e2e8f-0abc-49a7-bead-0501c1226040@redhat.com>
References: <20240623204514.1032662-1-longman@redhat.com> <77d4299e-e1ee-4471-9b53-90957daa984d@redhat.com> <ZnmO8izZPwYfiaRz@castle.lan> <d97e2e8f-0abc-49a7-bead-0501c1226040@redhat.com>

On Mon 24-06-24 12:33:27, Waiman Long wrote:
> I also trace back the OOM problem to commit 14aa8b2d5c2e ("mm/mglru: don't
> sync disk for each aging cycle") in the MGLRU code. So setting memory.high
> automatically is one way to avoid premature OOM. That is the motivation
> behind this patch.

Please report this.
-- 
Michal Hocko
SUSE Labs

Follow-Ups:
- Re: [PATCH] memcg: Add a new sysctl parameter for automatically setting memory.high
  - From: Waiman Long

References:
- [PATCH] memcg: Add a new sysctl parameter for automatically setting memory.high
  - From: Waiman Long
- Re: [PATCH] memcg: Add a new sysctl parameter for automatically setting memory.high
  - From: Waiman Long
- Re: [PATCH] memcg: Add a new sysctl parameter for automatically setting memory.high
  - From: Roman Gushchin
- Re: [PATCH] memcg: Add a new sysctl parameter for automatically setting memory.high
  - From: Waiman Long

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