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[195.135.220.15]) by mx.google.com with ESMTPS id r9si10355895edd.173.2019.07.15.05.10.30 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 Jul 2019 05:10:30 -0700 (PDT) Received-SPF: pass (google.com: domain of mkoutny@suse.com designates 195.135.220.15 as permitted sender) client-ip=195.135.220.15; Authentication-Results: mx.google.com; spf=pass (google.com: domain of mkoutny@suse.com designates 195.135.220.15 as permitted sender) smtp.mailfrom=mkoutny@suse.com X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 1D765AF0B; Mon, 15 Jul 2019 12:10:30 +0000 (UTC) Date: Mon, 15 Jul 2019 14:10:25 +0200 From: Michal =?iso-8859-1?Q?Koutn=FD?= To: =?utf-8?B?546L6LSH?= Cc: Peter Zijlstra , keescook@chromium.org, hannes@cmpxchg.org, vdavydov.dev@gmail.com, mcgrof@kernel.org, mhocko@kernel.org, linux-mm@kvack.org, Ingo Molnar , riel@surriel.com, Mel Gorman , cgroups@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/4] numa: introduce per-cgroup numa balancing locality, statistic Message-ID: <20190715121025.GN9035@blackbody.suse.cz> References: <209d247e-c1b2-3235-2722-dd7c1f896483@linux.alibaba.com> <60b59306-5e36-e587-9145-e90657daec41@linux.alibaba.com> <3ac9b43a-cc80-01be-0079-df008a71ce4b@linux.alibaba.com> <20190711134754.GD3402@hirez.programming.kicks-ass.net> <20190712075815.GN3402@hirez.programming.kicks-ass.net> <37474414-1a54-8e3a-60df-eb7e5e1cc1ed@linux.alibaba.com> <20190712094214.GR3402@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) 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: Hello Yun. On Fri, Jul 12, 2019 at 06:10:24PM +0800, 王贇 wrote: > Forgive me but I have no idea on how to combined this > with memory cgroup's locality hierarchical update... > parent memory cgroup do not have influence on mems_allowed > to it's children, correct? I'd recommend to look at the v2 of the cpuset controller that implements the hierarchical behavior among configured memory node sets. (My comment would better fit to [PATCH 3/4] numa: introduce numa group per task group IIUC, you could use cpuset controller to constraint memory nodes.) For the second part (accessing numa statistics, i.e. this patch), I wonder wheter this information wouldn't be better presented under the cpuset controller too. HTH, Michal