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b=Hnu9QoPIsDm/qvQexRpVo4Y2RW0eOPfck2LEZ76NoCdaT5ZNilp1/YhMH2rzmAVcq d95jUYWe56OjtCCL8rWcNfoYpPxtBWzJCQzcIXLlyY81aX+IOGQWys6pm3dyexLN3V jPhHi32H4pklSJgSjZMTejYsJmCHvHQ6r/f5iP3k= Date: Tue, 27 May 2025 17:21:12 -0700 From: Andrew Morton To: Shakeel Butt Cc: Chen Yu , peterz@infradead.org, mkoutny@suse.com, mingo@redhat.com, tj@kernel.org, hannes@cmpxchg.org, corbet@lwn.net, mgorman@suse.de, mhocko@kernel.org, muchun.song@linux.dev, roman.gushchin@linux.dev, tim.c.chen@intel.com, aubrey.li@intel.com, libo.chen@oracle.com, kprateek.nayak@amd.com, vineethr@linux.ibm.com, venkat88@linux.ibm.com, ayushjai@amd.com, cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, yu.chen.surf@foxmail.com Subject: Re: [PATCH v5 0/2] sched/numa: add statistics of numa balance task migration Message-Id: <20250527172112.18612286e9a193089d42a027@linux-foundation.org> In-Reply-To: References: <20250523150635.5901dbb92b8379c9d88f88ca@linux-foundation.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 1C9211C0008 X-Stat-Signature: hknormtefjjym1fhmod13d54fzc1o35i X-Rspam-User: X-HE-Tag: 1748391674-839941 X-HE-Meta: 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 +Kt/HHWH TG37NXllaHelI/atQ020ZSccIiouPReIoRg5Vc+GYEHiKIZdktjRDuOtS2H6ZBhGFyBD8vqSBrIva5R9c0I2haXFFU7tbiqXKesMQWcFpr6bAJiHoR5zY5vvWdxy5uuywbTkbDpUopjMr8tQVAsTU7txlbML2lrNih9rL0Wd5fpfR3SPNtWR6GeGxPsj6Hast4k05jFyXK+FNFA4+j4U8VTGqxwSqri18N5PK0LgMdxM9q0lvQboPMpuCnIoU6glXLslY/EIeTUIP/N5MgJW0ZlHPuw4cBQHJBcZSY213QKThZ4E= 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: On Fri, 23 May 2025 16:52:46 -0700 Shakeel Butt wrote: > On Fri, May 23, 2025 at 03:06:35PM -0700, Andrew Morton wrote: > > On Fri, 23 May 2025 20:48:02 +0800 Chen Yu wrote: > > > > > Introducing the task migration and swap statistics in the following places: > > > /sys/fs/cgroup/{GROUP}/memory.stat > > > /proc/{PID}/sched > > > /proc/vmstat > > > > > > These statistics facilitate a rapid evaluation of the performance and resource > > > utilization of the target workload. > > > > Thanks. I added this. > > > > We're late in -rc7 but an earlier verison of this did have a run in > > linux-next. Could reviewers please take a look relatively soon, let us > > know whether they believe this looks suitable for 6.16-rc1? > > > > The stats seems valuable but I am not convinced that memcg is the right > home for these stats. So, please hold until that is resolved. No probs, I'll keep these in mm-new until something changes.