Re: [PATCH v4] mm/mempolicy: track user-defined mempolicy allocations
From: Andrew Morton
Date: Mon Apr 27 2026 - 17:11:32 EST
On Mon, 27 Apr 2026 08:15:20 -0700 "JP Kobryn (Meta)" <jp.kobryn@xxxxxxxxx> wrote:
> When investigating pressure on a NUMA node, there is no straightforward way
> to determine which user-defined policies are driving allocations to it.
>
> Add NUMA mempolicy allocation counters as new node stat items. These
> counters track allocations to nodes and also whether the allocations were
> intentional or fallbacks.
AI review:
https://sashiko.dev/#/patchset/20260427151520.137341-1-jp.kobryn@xxxxxxxxx