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SubjectRe: [PATCH v1 0/3] per-process reclaim

On 6/15/2016 6:27 AM, Minchan Kim wrote:
> Yeb, I read Johannes's thread which suggests one-cgroup-per-app model.
> It does make sense to me. It is worth to try although I guess it's not
> easy to control memory usage on demand, not proactively.
> If we can do, maybe we don't need per-process reclaim policy which
> is rather coarse-grained model of reclaim POV.
> However, a concern with one-cgroup-per-app model is LRU list size
> of a cgroup is much smaller so how LRU aging works well and
> LRU churing(e.g., compaction) effect would be severe than old.
And I was thinking what would vmpressure mean and how to use it when cgroup is per task.
> I guess codeaurora tried memcg model for android.
> Could you share if you know something?
We tried, but had issues with charge migration and then Johannes suggested per task cgroup.
But that's not tried yet.


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