From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 45AAC1367; Wed, 28 May 2025 00:21:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748391674; cv=none; b=Npzl4eyOv1EERibZ8wOlCe2Or3Y6fOTnU/EKjaz+4sji1L3VW251J6DcmLSGrG5Md+tCTnRwiGt+UDpUssM5+sqDTg9axDpuXf6beSFrbvAhmdMEWOdDDBj/QJDkZFcn06vgp0XrBALQVpuGMfim+0xO5Sv+bwHHoGjuCgV/3bg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748391674; c=relaxed/simple; bh=MiplJaSXo9+qkAJjfFdFOEBgp25rtyEwQyCkvimB9gQ=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=rJF8q2qGyGa+YQdT7cd6sm53Ow3plF767cwAgfnsdwKoiw9tLofeUwYWApfLVF59eI6lHrXh9wP3X3yl31ZDBn3Hrbq3Uxh0ANeh8bC3EGWPUPQqtqRrCZJkNtJexJvU+Fw0vor99o3mXHLali9HmXiH5WBGrhI82UbCg/sndd8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=Hnu9QoPI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Hnu9QoPI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3D46FC4CEE9; Wed, 28 May 2025 00:21:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1748391674; bh=MiplJaSXo9+qkAJjfFdFOEBgp25rtyEwQyCkvimB9gQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; 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) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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.