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From: Shakeel Butt To: Andrew Morton 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: References: <20250523150635.5901dbb92b8379c9d88f88ca@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250523150635.5901dbb92b8379c9d88f88ca@linux-foundation.org> X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: BD324140003 X-Stat-Signature: oo8fwcpeu1if8dmzg3xsookcpmjk7qt9 X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1748044397-208729 X-HE-Meta: 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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: 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.