linux-kernel - Re: [PATCH] mm/memory_hotplug: Cache auto_movable stats to optimize online check

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Message-ID: <20251218064159.7230-1-swarajgaikwad1925@gmail.com>
Date: Thu, 18 Dec 2025 12:11:53 +0530
From: Swaraj Gaikwad <swarajgaikwad1925@...il.com>
To: swarajgaikwad1925@...il.com
Cc: akpm@...ux-foundation.org,
	david.hunter.linux@...il.com,
	david@...nel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	osalvador@...e.de,
	skhan@...uxfoundation.org
Subject: Re: [PATCH] mm/memory_hotplug: Cache auto_movable stats to optimize online check

Hi David,

I’m just checking in on this patch to see if you’ve had a chance to review
the benchmark results I shared last week. To recap, the caching reduced the
execution time for the NUMA_NO_NODE case from ~2402 ns to ~453 ns in my test
environment.

Please let me know if the performance gain justifies the change in your view,or
if you would prefer I send a v2 that simply updates the TODO comment as you suggested.

Thanks,
Swaraj