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Thu, 03 Apr 2025 11:03:03 -0700 (PDT) Received: from blackdock.suse.cz ([193.86.92.181]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-43ec169b8a3sm27842955e9.19.2025.04.03.11.03.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Apr 2025 11:03:03 -0700 (PDT) Date: Thu, 3 Apr 2025 20:03:01 +0200 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: "Chen, Yu C" Cc: Peter Zijlstra , Ingo Molnar , Juri Lelli , Vincent Guittot , Mel Gorman , Johannes Weiner , Michal Hocko , Roman Gushchin , Shakeel Butt , Muchun Song , Andrew Morton , Tim Chen , Aubrey Li , Rik van Riel , Raghavendra K T , K Prateek Nayak , Baolin Wang , Xunlei Pang , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, Chen Yu Subject: Re: [PATCH] sched/numa: Add statistics of numa balance task migration and swap Message-ID: References: <20250402010611.3204674-1-yu.c.chen@intel.com> <7cbbbd8f-a4b4-491d-bb60-97defff6007c@intel.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; 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protected-headers=v1; charset=us-ascii Content-Disposition: inline Subject: Re: [PATCH] sched/numa: Add statistics of numa balance task migration and swap MIME-Version: 1.0 On Thu, Apr 03, 2025 at 10:47:44AM +0800, "Chen, Yu C" wrote: > In the context of NUMA balancing, it would be helpful to not only monitor on > the activities of individual task/thread but also the resource usage and > task migrations at the group level - which helps us quickly evaluate the > performance and resource usage of the container - like per memcg > numa_pages_migrated, numa_pte_updates introduced in Somehow I thought that these are the useful metrics (amount of misplaced memory) and the aggregated task stats aren't interesting (they'd be more or less proportion of total number of tasks in the group and you don't know which task it was). > Got it, will do in next version. OK. Thanks, Michal --cmo6hhl6vnnkdo2y Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTd6mfF2PbEZnpdoAkt3Wney77BSQUCZ+7NUwAKCRAt3Wney77B SXyAAP9zRNbWyXvRY68kwReBWQwU+IWj9P0H4vV7txVVj+beHQD/Vl708/8cL+7h OSXoRbmFYGoPx1rHTLM6MtQrJS4noAA= =Vpoo -----END PGP SIGNATURE----- --cmo6hhl6vnnkdo2y--