linux-kernel - Re: [PATCH 3/4] mm: Centralize & improve oom reporting in show

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Date:   Wed, 20 Apr 2022 08:58:36 +0200
From:   Michal Hocko <mhocko@...e.com>
To:     Kent Overstreet <kent.overstreet@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org, roman.gushchin@...ux.dev,
        hannes@...xchg.org
Subject: Re: [PATCH 3/4] mm: Centralize & improve oom reporting in show_mem.c

On Tue 19-04-22 16:32:01, Kent Overstreet wrote:
> This patch:
>  - Moves lib/show_mem.c to mm/show_mem.c

Sure, why not. Should be a separate patch.

>  - Changes show_mem() to always report on slab usage
>  - Instead of reporting on all slabs, we only report on top 10 slabs,
>    and in sorted order
>  - Also reports on shrinkers, with the new shrinkers_to_text().

Why do we need/want this? It would be also great to provide an example
of why the new output is better (in which cases) than the existing one.
-- 
Michal Hocko
SUSE Labs