Re: [RFC PATCH v5 00/10] mm: Hot page tracking and promotion infrastructure

[Gregory Price]

On Wed, Feb 11, 2026 at 09:00:26PM +0530, Bharata B Rao wrote:
> - pghot-default mode doesn't show benefit even when achieving similar page promotion
>   numbers. This mode doesn't track accessing NID and by default promotes to NID=0
>   which probably isn't all that beneficial as processes are running on both Node 0
>   and Node 1.
>

Lacking access-nid data, maybe it's better to select a random (or
round-robin) node in the upper tier?  That would at least approach 1/N
accuracy in promotion for most access patterns.

~Gregory