linux-kernel - Re: [RFC PATCH 0/4] mm/damon: Add DAMOS action to interleave data across nodes

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Message-ID: <CAMvvPS4OAHAdUJtuinCgo+oTQ8akSk8138LikLx_38pr8rtqeA@mail.gmail.com>
Date: Mon, 16 Jun 2025 10:01:57 -0500
From: Bijan Tabatabai <bijan311@...il.com>
To: Byungchul Park <byungchul@...com>
Cc: SeongJae Park <sj@...nel.org>, linux-mm@...ck.org, linux-doc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, corbet@....net, 
	david@...hat.com, ziy@...dia.com, matthew.brost@...el.com, 
	joshua.hahnjy@...il.com, rakie.kim@...com, gourry@...rry.net, 
	ying.huang@...ux.alibaba.com, apopple@...dia.com, bijantabatab@...ron.com, 
	venkataravis@...ron.com, emirakhur@...ron.com, ajayjoshi@...ron.com, 
	vtavarespetr@...ron.com, damon@...ts.linux.dev, kernel_team@...ynix.com
Subject: Re: [RFC PATCH 0/4] mm/damon: Add DAMOS action to interleave data
 across nodes

On Mon, Jun 16, 2025 at 2:42 AM Byungchul Park <byungchul@...com> wrote:
[...]

Hi Byungchul,

> Your approach sounds interesting.
>
> IIUC, the approach can be intergrated with the existing numa hinting
> mechanism as well, so as to perform weighted interleaving migration for
> promotion, which may result in suppressing the migration anyway tho, in
> MPOL_WEIGHTED_INTERLEAVE set.
>
> Do you have plan for the that too?

I do not currently have plans to support that, but this approach could
be used there as well.

> Plus, it'd be the best if you share the improvement result rather than
> the placement data.

Sure, I could add some performance data in the cover letter of the
next revision.

>         Byungchul
>
[...]

Thanks,
Bijan