Re: [RFC v3 0/3] vmpressure_fd: Linux VM pressure notifications

[Pekka Enberg]

On Wed, Nov 7, 2012 at 1:21 PM, Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> wrote:
>> While the new API is very simple, it is still extensible (i.e. versioned).
>
> Sorry, I didn't follow previous discussion on this, but could you
> explain what's wrong with memory notifications from memcg?
> As I can see you can get pretty similar functionality using memory
> thresholds on the root cgroup. What's the point?

Why should you be required to use cgroups to get VM pressure events to
userspace?
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