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Date:   Thu, 7 Sep 2017 19:47:45 +0100
From:   Roman Gushchin <>
To:     Shakeel Butt <>
CC:     Johannes Weiner <>,
        Linux MM <>,
        Michal Hocko <>,
        Vladimir Davydov <>,
        <>, <>,
        LKML <>
Subject: Re: [PATCH] mm: memcontrol: use per-cpu stocks for socket memory

On Thu, Sep 07, 2017 at 11:44:12AM -0700, Shakeel Butt wrote:
> >> As far as other types of pages go: page cache and anon are already
> >> batched pretty well, but I think kmem might benefit from this
> >> too. Have you considered using the stock in memcg_kmem_uncharge()?
> >
> > Good idea!
> > I'll try to find an appropriate testcase and check if it really
> > brings any benefits. If so, I'll master a patch.
> >
> Hi Roman, did you get the chance to try this on memcg_kmem_uncharge()?

Hi Shakeel!

Not yet, I'll try to it asap.
Do you have an example when it's costly?


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