linux-kernel - Re: [PATCH rfc 0/5] mm: introduce shrinker sysfs interface

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Message-Id: <20220419112549.a42f1d86b025112d3a3aaf8c@linux-foundation.org>
Date:   Tue, 19 Apr 2022 11:25:49 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Roman Gushchin <roman.gushchin@...ux.dev>
Cc:     linux-mm@...ck.org, Dave Chinner <dchinner@...hat.com>,
        linux-kernel@...r.kernel.org, Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Yang Shi <shy828301@...il.com>
Subject: Re: [PATCH rfc 0/5] mm: introduce shrinker sysfs interface

On Tue, 19 Apr 2022 10:52:44 -0700 Roman Gushchin <roman.gushchin@...ux.dev> wrote:

> > Unclear.  At the end of what output?
> 
> This is how it looks like when the output is too long:
> 
> [root@...50-1 sb-btrfs-24]# cat count_memcg
> 1 226
> 20 96
> 53 811
> 2429 2
> 218 13
> 581 29
> 911 124
> 1010 3
> 1043 1
> 1076 1
> 1241 60
> 1274 7
> 1307 39
> 1340 3
> 1406 14
> 1439 63
> 1472 54
> 1505 8
> 1538 1
> 1571 6
> 1604 39
> 1637 9
> 1670 8
> 1703 4
> 1736 1094
> 1802 2
> 1868 2
> 1901 52
> 1934 592
> 1967 32
> 			< CUT >
> 18797 1
> 18830 1

We do that in-kernel?  Why?  That just makes parsers harder to write?
If someone has issues then direct them at /usr/bin/less?