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Wed, 02 Apr 2025 06:24:46 -0700 (PDT) Date: Wed, 2 Apr 2025 15:24:44 +0200 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: Chen Yu 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> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="4tucdzeycj4q3iyr" Content-Disposition: inline In-Reply-To: <20250402010611.3204674-1-yu.c.chen@intel.com> X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 942B8A000B X-Stat-Signature: 3t69kkwdn4ikx6r5gtkazjiarc7myd1m X-HE-Tag: 1743600288-189232 X-HE-Meta: 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 pBFixLw9 pOIUcrgI1mToK7X/YunpdVsN80/wDBhPT0g+EHv3Dys9MJ2ciZqM3vQ11YfaHAk5EX0RU8dLeTXTEmIEOLr6MeSnh59L/n7Vy8AwDOdV1wIb4S4UiZnSfVJrEcDrkY8OJP3PQf3v2dRSqLz1J+SDQcP0DlATQQwhQXyiCrSrr8MntPPxiLQAeFNRYeM5vRZjPKIIIIJn+X13kq0XOREt64zZt7eO8PPHxxUSyPk/IbBnSxkS8iHLUt7nsLahMxluVEAwwwp75Zqj9IhTZDIiJagWhp/4f5whaEv8ysOmZHiXu0H23ax83L9jbthZif06S23y3mze8YR6LoWL2iDXseOoTc8qejJLdPmuVCQL0bzKvQJ5MUPqVnkiiEaE3oLp0MuruOP9TevFOvwEk5uR/Dfgasb+x3nCgl6M/CXahYgmbroEWoQs4zSQJ6LweyYNEJAwoVna/srUFuHA= 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: --4tucdzeycj4q3iyr Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH] sched/numa: Add statistics of numa balance task migration and swap MIME-Version: 1.0 Hello Chen. On Wed, Apr 02, 2025 at 09:06:11AM +0800, Chen Yu wro= te: > On system with NUMA balancing enabled, it is found that tracking > the task activities due to NUMA balancing is helpful. =2E.. > The following two new fields: >=20 > numa_task_migrated > numa_task_swapped >=20 > will be displayed in both > /sys/fs/cgroup/{GROUP}/memory.stat and /proc/{PID}/sched Why is the field /proc/$pid/sched not enough? Also, you may want to update Documentation/admin-guide/cgroup-v2.rst too. Thanks, Michal --4tucdzeycj4q3iyr Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTd6mfF2PbEZnpdoAkt3Wney77BSQUCZ+06mgAKCRAt3Wney77B SW8CAQCXwIcQIqtvT1iWJCuoc6huUPtKvhF+cl6qPbYfLvIufwEAltSTP9q9VKKA ptKpUW0AUPlg9fYltaInQYPUopxCJgk= =/Gj8 -----END PGP SIGNATURE----- --4tucdzeycj4q3iyr--