On Thu, Jun 01, 2017 at 07:35:14PM +0100, Roman Gushchin wrote:
> Traditionally, the OOM killer is operating on a process level.
> Under oom conditions, it finds a process with the highest oom score
> and kills it.
>
> This behavior doesn't suit well the system with many running
> containers. Ther
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//oom_score
On Thu, Jun 01, 2017 at 07:35:12PM +0100, Roman Gushchin wrote:
> This option defines whether a cgroup should be treated
> as a single entity by the OOM killer.
>
> If set, the OOM killer will compare the whole cgroup with other
> memory consumers (other cgroups and tasks in the root cgroup),
> an
On Thu, Jun 01, 2017 at 07:35:09PM +0100, Roman Gushchin wrote:
> The select_bad_process() function will be used further
> to select a process to kill in the victim cgroup.
> This cgroup doesn't necessary match oc->memcg,
> which is a cgroup, which limits were caused cgroup-wide OOM
> (or NULL in c
c: Johannes Weiner
> Cc: Tejun Heo
> Cc: Li Zefan
> Cc: Michal Hocko
> Cc: Vladimir Davydov
> Cc: cgro...@vger.kernel.org
> Cc: linux-doc@vger.kernel.org
> Cc: linux-ker...@vger.kernel.org
> Cc: linux...@kvack.org
Acked-by: Vladimir Davydov
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Hello Roman,
On Thu, May 18, 2017 at 05:28:04PM +0100, Roman Gushchin wrote:
...
> +5-2-4. Cgroup-aware OOM Killer
> +
> +Cgroup v2 memory controller implements a cgroup-aware OOM killer.
> +It means that it treats memory cgroups as memory consumers
> +rather then individual processes. Under the O
On Tue, Feb 16, 2016 at 02:58:04AM +, Nag Avadhanam (nag) wrote:
> We have a class of platforms that are essentially swap-less embedded
> systems that have limited memory resources (2GB and less).
>
> There is a need to implement early alerts (before the OOM killer kicks in)
> based on the cur
