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

[Matthew Wilcox]

On Tue, Jul 28, 2026 at 11:14:01AM -0700, Andrew Morton wrote:
> On Tue, 28 Jul 2026 11:13:48 +0530 Bharata B Rao <bharata@xxxxxxx> wrote:
> 
> > This patchset introduces pghot, a subsystem for hot page tracking and
> > promotion.
> 
> Can DAMON be used to do this sort of thing adequately?
> 
> Thanks, I'll await review input on this.

I don't think we should do this.  I don't think it's a use-case that
customers actually want; I think it's something CPU vendors think their
customers want.  I've said this repeatedly over the months this patchset
has been in development.  I say no.