Re: [PATCH v8 0/8] mm: Hot page tracking and promotion infrastructure

[Gregory Price]

On Tue, Jul 28, 2026 at 09:20:32PM +0200, David Hildenbrand (Arm) wrote:
> 
> The diffstat is scary, to say the least. And the x86 stuff certainly needs x86
> maintainer acks.
> 
> So far there is no real review -- we're in v8 without a single tag.
> 
> So this is far away from being mergeable.
> 
> I'm afraid this will need a lot more discussions, and likely RFC would have been
> still appropriate at this point.
> 

No disagreement here, my lament of not being able to get fleet-scale
data is more of a personal one, not a cry to merge. We're working on it.

> It's a shame this work was going on for quite a while without feedback (blame me
> if you want :) but there are only so many hours in a day), but the main problem
> is that this work in particular was not perceived to be high or even medium
> priority so far.
> 

Should note that we hold a bi-weekly working group on this to discuss
the design and micro-benchmarks - so it hasn't been developed in a
complete vacuum. We (I) owe that group some explicit on-list reviews
and testing data - that's my fault (life has been busy).

~Gregory