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Re: [v5 3/4] mm, oom: introduce oom_priority for memory cgroups

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  Re: [v5 3/4] mm, oom: introduce oom_priority for memory cgroups David Rientjes <rientjes@google.com> - 2017-08-15 00:50 +0200

#1711532 — Re: [v5 3/4] mm, oom: introduce oom_priority for memory cgroups

On Mon, 14 Aug 2017, Roman Gushchin wrote:

> Introduce a per-memory-cgroup oom_priority setting: an integer number
> within the [-10000, 10000] range, which defines the order in which
> the OOM killer selects victim memory cgroups.
> 
> OOM killer prefers memory cgroups with larger priority if they are
> populated with elegible tasks.
> 
> The oom_priority value is compared within sibling cgroups.
> 
> The root cgroup has the oom_priority 0, which cannot be changed.
> 
> Signed-off-by: Roman Gushchin <guro@fb.com>
> Cc: Michal Hocko <mhocko@kernel.org>
> Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: David Rientjes <rientjes@google.com>
> Cc: Tejun Heo <tj@kernel.org>
> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
> Cc: kernel-team@fb.com
> Cc: cgroups@vger.kernel.org
> Cc: linux-doc@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-mm@kvack.org

Tested-by: David Rientjes <rientjes@google.com>

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