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

Shakeel Butt
2017-09-07T19:43:35Z

On Thu, Sep 7, 2017 at 11:47 AM, Roman Gushchin <guro@fb.com> wrote:
> 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?
>

Nah, I was also curious of such examples.

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