linux-kernel - Re: [PATCH] alloc_tag: add per-NUMA node stats

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Message-ID: <7a9fc525-7ed5-367c-6504-5ce9ab4520b7@gentwo.org>
Date: Tue, 8 Jul 2025 15:38:24 -0700 (PDT)
From: "Christoph Lameter (Ampere)" <cl@...two.org>
To: David Rientjes <rientjes@...gle.com>
cc: Kent Overstreet <kent.overstreet@...ux.dev>, 
    Casey Chen <cachen@...estorage.com>, 
    Andrew Morton <akpm@...ux-foundation.org>, surenb@...gle.com, 
    corbet@....net, dennis@...nel.org, tj@...nel.org, 
    Vlastimil Babka <vbabka@...e.cz>, mhocko@...e.com, jackmanb@...gle.com, 
    hannes@...xchg.org, ziy@...dia.com, roman.gushchin@...ux.dev, 
    harry.yoo@...cle.com, linux-mm@...ck.org, linux-kernel@...r.kernel.org, 
    linux-doc@...r.kernel.org, yzhong@...estorage.com, 
    Sourav Panda <souravpanda@...gle.com>
Subject: Re: [PATCH] alloc_tag: add per-NUMA node stats

On Tue, 8 Jul 2025, David Rientjes wrote:

> Right, per-node memory attribution, or per zone, is very useful.

I thought that was already possible using cgroups? That way you have the
numbers for an application which may be much more useful.