From: Christopher Lameter <cl-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>
To: Roman Gushchin <guro-b10kYP2dOMg@public.gmane.org>
Cc: David Rientjes <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
nzimmer-sJ/iWh9BUns@public.gmane.org,
holt-sJ/iWh9BUns@public.gmane.org,
Michal Hocko <mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
Vladimir Davydov
<vdavydov.dev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>,
Tetsuo Handa
<penguin-kernel-1yMVhJb1mP/7nzcFbJAaVXf5DAMn2ifp@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@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,
sivanich-sJ/iWh9BUns@public.gmane.org
Subject: Re: [v7 5/5] mm, oom: cgroup v2 mount option to disable cgroup-aware OOM killer
Date: Thu, 7 Sep 2017 10:03:24 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.20.1709071001580.19736@nuc-kabylake> (raw)
In-Reply-To: <20170907145239.GA19022-B3w7+ongkCiLfgCeKHXN1g2O0Ztt9esIQQ4Iyu8u01E@public.gmane.org>
On Thu, 7 Sep 2017, Roman Gushchin wrote:
> > Really? From what I know and worked on way back when: The reason was to be
> > able to contain the affected application in a cpuset. Multiple apps may
> > have been running in multiple cpusets on a large NUMA machine and the OOM
> > condition in one cpuset should not affect the other. It also helped to
> > isolate the application behavior causing the oom in numerous cases.
> >
> > Doesnt this requirement transfer to cgroups in the same way?
>
> We have per-node memory stats and plan to use them during the OOM victim
> selection. Hopefully it can help.
One of the OOM causes could be that memory was restricted to a certain
node set. Killing the allocating task is (was?) default behavior in that
case so that the task that has the restrictions is killed. Not any task
that may not have the restrictions and woiuld not experience OOM.
next prev parent reply other threads:[~2017-09-07 15:03 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-04 14:21 [v7 0/5] " Roman Gushchin
2017-09-04 14:21 ` [v7 1/5] mm, oom: refactor the oom_kill_process() function Roman Gushchin
2017-09-05 13:34 ` Michal Hocko
2017-09-04 14:21 ` [v7 2/5] mm, oom: cgroup-aware OOM killer Roman Gushchin
2017-09-05 14:57 ` Michal Hocko
2017-09-05 20:23 ` Roman Gushchin
2017-09-06 8:31 ` Michal Hocko
2017-09-06 12:57 ` Roman Gushchin
2017-09-06 13:22 ` Michal Hocko
2017-09-06 13:41 ` Roman Gushchin
2017-09-06 14:10 ` Michal Hocko
2017-09-06 8:34 ` Michal Hocko
2017-09-06 12:33 ` Roman Gushchin
[not found] ` <20170904142108.7165-3-guro-b10kYP2dOMg@public.gmane.org>
2017-09-07 16:18 ` Christopher Lameter
2017-09-11 8:49 ` Michal Hocko
2017-09-04 14:21 ` [v7 3/5] mm, oom: introduce oom_priority for memory cgroups Roman Gushchin
2017-09-04 14:21 ` [v7 4/5] mm, oom, docs: describe the cgroup-aware OOM killer Roman Gushchin
2017-09-04 14:21 ` [v7 5/5] mm, oom: cgroup v2 mount option to disable " Roman Gushchin
2017-09-04 17:32 ` Shakeel Butt
2017-09-04 17:51 ` Roman Gushchin
2017-09-05 13:44 ` Michal Hocko
2017-09-05 14:30 ` Roman Gushchin
2017-09-05 15:12 ` Michal Hocko
2017-09-05 19:16 ` Roman Gushchin
2017-09-06 8:42 ` Michal Hocko
2017-09-06 17:40 ` Roman Gushchin
2017-09-06 17:59 ` Michal Hocko
2017-09-06 20:59 ` David Rientjes
2017-09-07 14:43 ` Christopher Lameter
2017-09-07 14:52 ` Roman Gushchin
[not found] ` <20170907145239.GA19022-B3w7+ongkCiLfgCeKHXN1g2O0Ztt9esIQQ4Iyu8u01E@public.gmane.org>
2017-09-07 15:03 ` Christopher Lameter [this message]
2017-09-07 16:42 ` Roman Gushchin
2017-09-07 17:03 ` Christopher Lameter
2017-09-07 21:55 ` David Rientjes
[not found] ` <20170905151251.luh4wogjd3msfqgf-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2017-09-07 16:21 ` Christopher Lameter
2017-09-05 21:53 ` Johannes Weiner
2017-09-06 8:28 ` Michal Hocko
2017-09-07 16:14 ` Johannes Weiner
2017-09-11 9:05 ` Michal Hocko
2017-09-11 12:50 ` Roman Gushchin
2017-09-07 16:27 ` Christopher Lameter
2017-09-07 22:03 ` David Rientjes
2017-09-08 21:07 ` Christopher Lameter
2017-09-09 8:45 ` David Rientjes
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