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Wed, 17 Dec 2025 22:42:07 -0800 (PST) From: Swaraj Gaikwad To: swarajgaikwad1925@gmail.com Cc: akpm@linux-foundation.org, david.hunter.linux@gmail.com, david@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, osalvador@suse.de, skhan@linuxfoundation.org Subject: Re: [PATCH] mm/memory_hotplug: Cache auto_movable stats to optimize online check Date: Thu, 18 Dec 2025 12:11:53 +0530 Message-ID: <20251218064159.7230-1-swarajgaikwad1925@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251207231056.71294-1-swarajgaikwad1925@gmail.com> References: <20251207231056.71294-1-swarajgaikwad1925@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: E28C440002 X-Stat-Signature: 1zde3fb1td35in6kt1k6r5bajb87pfw7 X-Rspam-User: X-HE-Tag: 1766040128-87044 X-HE-Meta: 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 6M1UUUji 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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