Re: [RFC v2] percpu: Add a separate function to merge free areas

From: Konstantin Khlebnikov
Date: Fri Dec 05 2014 - 01:25:17 EST


On Fri, Dec 5, 2014 at 12:20 AM, Christoph Lameter <cl@xxxxxxxxx> wrote:
> On Thu, 4 Dec 2014, Tejun Heo wrote:
>
>> Docker usage is pretty wide-spread now, making what used to be
>> siberia-cold paths hot enough to cause actual scalability issues.
>> Besides, we're now using percpu_ref for things like aio and cgroup
>> control structures which can be created and destroyed quite
>> frequently. I don't think we can say these are "weird" use cases
>> anymore.
>
> Well then lets write a scalable percpu allocator.

percpu allocator maybe be overkill but I think it's worth to make
kmem_cache-like thing with pool of objects.

>
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