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

From: Christoph Lameter
Date: Thu Dec 04 2014 - 16:20:47 EST

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.

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