From: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
To: Michal Hocko <mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Roman Gushchin <guro-b10kYP2dOMg@public.gmane.org>,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
David Rientjes <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Vladimir Davydov
<vdavydov.dev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Tetsuo Handa
<penguin-kernel-1yMVhJb1mP/7nzcFbJAaVXf5DAMn2ifp@public.gmane.org>,
kernel-team-b10kYP2dOMg@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org
Subject: Re: [patch -mm v2 2/3] mm, memcg: replace cgroup aware oom killer mount option with tunable
Date: Tue, 30 Jan 2018 12:30:17 -0500 [thread overview]
Message-ID: <20180130173017.GA24827@cmpxchg.org> (raw)
In-Reply-To: <20180130122011.GB21609-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
On Tue, Jan 30, 2018 at 01:20:11PM +0100, Michal Hocko wrote:
> From 361275a05ad7026b8f721f8aa756a4975a2c42b1 Mon Sep 17 00:00:00 2001
> From: Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>
> Date: Tue, 30 Jan 2018 09:54:15 +0100
> Subject: [PATCH] oom, memcg: clarify root memcg oom accounting
>
> David Rientjes has pointed out that the current way how the root memcg
> is accounted for the cgroup aware OOM killer is undocumented. Unlike
> regular cgroups there is no accounting going on in the root memcg
> (mostly for performance reasons). Therefore we are suming up oom_badness
> of its tasks. This might result in an over accounting because of the
> oom_score_adj setting. Document this for now.
>
> Acked-by: Roman Gushchin <guro-b10kYP2dOMg@public.gmane.org>
> Signed-off-by: Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>
Acked-by: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
next prev parent reply other threads:[~2018-01-30 17:30 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-17 2:14 [patch -mm 0/4] mm, memcg: introduce oom policies David Rientjes
2018-01-17 2:15 ` [patch -mm 1/4] mm, memcg: introduce per-memcg oom policy tunable David Rientjes
2018-01-17 2:15 ` [patch -mm 2/4] mm, memcg: replace cgroup aware oom killer mount option with tunable David Rientjes
[not found] ` <alpine.DEB.2.10.1801161812550.28198-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2018-01-17 2:15 ` [patch -mm 3/4] mm, memcg: replace memory.oom_group with policy tunable David Rientjes
2018-01-17 15:41 ` Tejun Heo
2018-01-17 16:00 ` Michal Hocko
2018-01-17 22:18 ` David Rientjes
2018-01-23 15:13 ` Michal Hocko
2018-01-17 22:14 ` David Rientjes
2018-01-19 20:53 ` David Rientjes
[not found] ` <alpine.DEB.2.10.1801191251080.177541-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2018-01-20 12:32 ` Tejun Heo
2018-01-22 22:34 ` David Rientjes
2018-01-23 15:53 ` Michal Hocko
2018-01-23 22:22 ` David Rientjes
2018-01-24 8:20 ` Michal Hocko
2018-01-24 21:44 ` David Rientjes
[not found] ` <alpine.DEB.2.10.1801241340310.24330-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2018-01-24 22:08 ` Andrew Morton
2018-01-24 22:18 ` Tejun Heo
[not found] ` <20180124140805.b4eb437c6fe9dadb67a32e8a-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2018-01-25 8:11 ` Michal Hocko
2018-01-25 8:05 ` Michal Hocko
2018-01-25 23:27 ` David Rientjes
2018-01-26 10:07 ` Michal Hocko
2018-01-26 22:33 ` David Rientjes
2018-01-17 2:15 ` [patch -mm 4/4] mm, memcg: add hierarchical usage oom policy David Rientjes
2018-01-17 11:46 ` [patch -mm 0/4] mm, memcg: introduce oom policies Roman Gushchin
2018-01-17 22:31 ` David Rientjes
2018-01-25 23:53 ` [patch -mm v2 0/3] " David Rientjes
2018-01-25 23:53 ` [patch -mm v2 1/3] mm, memcg: introduce per-memcg oom policy tunable David Rientjes
2018-01-26 17:15 ` Michal Hocko
2018-01-29 22:38 ` David Rientjes
[not found] ` <alpine.DEB.2.10.1801291418150.29670-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2018-01-30 8:50 ` Michal Hocko
2018-01-30 22:38 ` David Rientjes
2018-01-31 9:47 ` Michal Hocko
2018-02-01 10:11 ` David Rientjes
2018-01-25 23:53 ` [patch -mm v2 2/3] mm, memcg: replace cgroup aware oom killer mount option with tunable David Rientjes
2018-01-26 0:00 ` Andrew Morton
2018-01-26 22:20 ` David Rientjes
2018-01-26 22:39 ` Andrew Morton
2018-01-26 22:52 ` David Rientjes
2018-01-27 0:17 ` Andrew Morton
2018-01-29 10:46 ` Michal Hocko
[not found] ` <20180129104657.GC21609-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2018-01-29 19:11 ` Tejun Heo
2018-01-30 8:54 ` Michal Hocko
[not found] ` <20180130085445.GQ21609-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2018-01-30 11:58 ` Roman Gushchin
[not found] ` <20180130115846.GA4720-B3w7+ongkCiLfgCeKHXN1g2O0Ztt9esIQQ4Iyu8u01E@public.gmane.org>
2018-01-30 12:08 ` Michal Hocko
2018-01-30 12:13 ` Roman Gushchin
[not found] ` <20180130121315.GA5888-B3w7+ongkCiLfgCeKHXN1g2O0Ztt9esIQQ4Iyu8u01E@public.gmane.org>
2018-01-30 12:20 ` Michal Hocko
2018-01-30 15:15 ` Tejun Heo
[not found] ` <20180130122011.GB21609-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2018-01-30 17:30 ` Johannes Weiner [this message]
2018-01-30 19:39 ` Andrew Morton
2018-01-29 22:16 ` David Rientjes
2018-01-25 23:53 ` [patch -mm v2 3/3] mm, memcg: add hierarchical usage oom policy David Rientjes
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180130173017.GA24827@cmpxchg.org \
--to=hannes-druugvl0lcnafugrpc6u6w@public.gmane.org \
--cc=akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org \
--cc=cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=guro-b10kYP2dOMg@public.gmane.org \
--cc=kernel-team-b10kYP2dOMg@public.gmane.org \
--cc=linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org \
--cc=mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=penguin-kernel-1yMVhJb1mP/7nzcFbJAaVXf5DAMn2ifp@public.gmane.org \
--cc=rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
--cc=tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=vdavydov.dev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox