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[115.124.30.130]) by mx.google.com with ESMTPS id x4si15384033plr.406.2019.04.23.02.33.28 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 Apr 2019 02:33:28 -0700 (PDT) Received-SPF: pass (google.com: domain of yun.wang@linux.alibaba.com designates 115.124.30.130 as permitted sender) client-ip=115.124.30.130; Authentication-Results: mx.google.com; spf=pass (google.com: domain of yun.wang@linux.alibaba.com designates 115.124.30.130 as permitted sender) smtp.mailfrom=yun.wang@linux.alibaba.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alibaba.com X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R111e4;CH=green;DM=||false|;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01f04391;MF=yun.wang@linux.alibaba.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---0TQ1iRYv_1556012005; Received: from testdeMacBook-Pro.local(mailfrom:yun.wang@linux.alibaba.com fp:SMTPD_---0TQ1iRYv_1556012005) by smtp.aliyun-inc.com(127.0.0.1); Tue, 23 Apr 2019 17:33:26 +0800 Subject: Re: [RFC PATCH 1/5] numa: introduce per-cgroup numa balancing locality, statistic To: Peter Zijlstra Cc: hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com, Ingo Molnar , linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <209d247e-c1b2-3235-2722-dd7c1f896483@linux.alibaba.com> <20190423084722.GD11158@hirez.programming.kicks-ass.net> From: =?UTF-8?B?546L6LSH?= Message-ID: Date: Tue, 23 Apr 2019 17:33:25 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20190423084722.GD11158@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit 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: On 2019/4/23 δΈ‹εˆ4:47, Peter Zijlstra wrote: > On Mon, Apr 22, 2019 at 10:11:24AM +0800, ηŽ‹θ΄‡ wrote: >> + p->numa_faults_locality[mem_node == numa_node_id() ? 4 : 3] += pages; > > Possibly: 3 + !!(mem_node = numa_node_id()), generates better code. Sounds good~ will apply in next version. Regards, Michael Wang >