Re: [RFC PATCH v2 5/7] mm, oom: introduce oom_score_adj for memory cgroups

From: Vladimir Davydov
Date: Sun Jun 04 2017 - 15:40:14 EST


On Thu, Jun 01, 2017 at 07:35:13PM +0100, Roman Gushchin wrote:
> Introduce a per-memory-cgroup oom_score_adj setting.
> A read-write single value file which exits on non-root
> cgroups. The default is "0".
>
> It will have a similar meaning to a per-process value,
> available via /proc/<pid>/oom_score_adj.
> Should be in a range [-1000, 1000].

IMHO OOM scoring (not only the user API, but the logic as well) should
be introduced by a separate patch following the main one (#6) in the
series. Rationale: we might want to commit the main patch right away,
while postponing OOM scoring for later, because some people might find
the API controversial and needing a further, deeper discussion.