Re: [PATCH] mm: memcontrol: use per-cpu stocks for socket memory uncharging

Roman Gushchin
2017-09-07T18:47:45Z

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?

Thanks!