From: Shakeel Butt <shakeelb@google.com>
To: Minchan Kim <minchan@kernel.org>, Paolo Bonzini <pbonzini@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>, Mike Rapoport <rppt@kernel.org>,
Muchun Song <songmuchun@bytedance.com>,
Eric Dumazet <eric.dumazet@gmail.com>,
Eric Dumazet <edumazet@google.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
Greg KH <gregkh@linuxfoundation.org>,
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Jason Wang <jasowang@redhat.com>,
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Alexey Dobriyan <adobriyan@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
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Michael Kerrisk <mtk.manpages@gmail.com>
Subject: Re: [External] Re: [PATCH] mm: proc: add Sock to /proc/meminfo
Date: Mon, 19 Oct 2020 10:23:26 -0700 [thread overview]
Message-ID: <CALvZod78tJDZauFvYfWmMyd+Z3Ci7Lsruyd_-nU00WL0EjN6vQ@mail.gmail.com> (raw)
In-Reply-To: <20201016205336.GE1976566@google.com>
CCed: Paolo Bonzini
On Fri, Oct 16, 2020 at 1:53 PM Minchan Kim <minchan@kernel.org> wrote:
[snip]
> > And there might be others, and adding everything to /proc/meminfo is not
> > feasible. I have once proposed adding a counter called "Unaccounted:" which
> > would at least tell the user easily if a significant portion is occupied by
> > memory not explained by the other meminfo counters, and look for trends
> > (increase = potential memory leak?). For specific prominent consumers not
> > covered by meminfo but that have some kind of internal counters, we could
> > document where to look, such as /proc/net/sockstat or maybe create some
> > /proc/ or /sys directory with file per consumer so that it's still easy to
> > check, but without the overhead of global counters and bloated
> > /proc/meminfo?
>
> What have in my mind is to support simple general sysfs infra from MM for
> driver/subysstems rather than creating each own memory stat. The API
> could support flexible accounting like just global memory consumption and/or
> consmption by key(e.g,. pid or each own special) for the detail.
>
> So, they are all shown under /sys/kernel/mm/misc/ with detail as well as
> /proc/meminfo with simple line for global.
This reminds me of statsfs [1]. I am wondering if this can be another
useful use-case for statsfs.
[1] https://lkml.org/lkml/2020/5/26/332
next prev parent reply other threads:[~2020-10-19 17:23 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-10 10:38 [PATCH] mm: proc: add Sock to /proc/meminfo Muchun Song
2020-10-10 16:36 ` Randy Dunlap
2020-10-11 4:42 ` [External] " Muchun Song
2020-10-11 13:52 ` Mike Rapoport
2020-10-11 16:00 ` [External] " Muchun Song
2020-10-11 18:39 ` Cong Wang
2020-10-12 4:22 ` [External] " Muchun Song
2020-10-12 7:42 ` Eric Dumazet
2020-10-12 8:39 ` Muchun Song
2020-10-12 9:24 ` Eric Dumazet
2020-10-12 9:53 ` Muchun Song
2020-10-12 22:12 ` Cong Wang
2020-10-13 3:52 ` Muchun Song
2020-10-13 6:55 ` Eric Dumazet
2020-10-13 8:09 ` Mike Rapoport
2020-10-13 14:43 ` Randy Dunlap
2020-10-13 15:12 ` Mike Rapoport
2020-10-13 15:21 ` Randy Dunlap
2020-10-14 5:34 ` Mike Rapoport
2020-10-13 15:28 ` Muchun Song
2020-10-16 15:38 ` Vlastimil Babka
2020-10-16 20:53 ` Minchan Kim
2020-10-19 17:23 ` Shakeel Butt [this message]
2020-10-12 21:46 ` Cong Wang
2020-10-13 3:29 ` Muchun Song
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