Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp3372905yba; Tue, 23 Apr 2019 02:38:51 -0700 (PDT) X-Google-Smtp-Source: APXvYqzMnMvFwNYswJSpKpvbu1XW/aLtBgntIYoRFHNhDFH2F/CtkEnSCQRx/bCkrI50J0A9NhH7 X-Received: by 2002:aa7:9089:: with SMTP id i9mr25646711pfa.115.1556012331901; Tue, 23 Apr 2019 02:38:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1556012331; cv=none; d=google.com; s=arc-20160816; b=UyMa6boepoIWd4z01EzCAJVuRK8pcGS3i2x0HXGMtqzquGVuSaL/CBynR6oiADdh03 P//+unOarNc4OIygvzBy3tfwFadfGn+yWikHBJlP1aOqTwISWNJVAPVoa1xQT5ecovvU 7kEEWMvrW8ZXRI/+500pKroQdaZ3zB0hb7zWKGtaaljZD+wwxOKY2hgCzZvYopoIVnG5 /UlMJuMaghzlxjunQ9bzWp1Wt5/ZSuW4R9tGo0DKu/2+YCmIfs2Mhw9r3TpW0eLQprTx m/FTaSt9sJkDu5n5mXS6v+JiqxLROnmmaeSB7lYwZOhP0cw2bVFhzE5eZKapYWsPx/1V QipQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=wvJjD0kmOc+9xsN987BUq3kXI+cR8pOakXt5jDPPYbA=; b=FuEMFYOBT7KDRzU+CIjwvKXZBlmyva80fmDDgURBB04maGogW9Fl8hdzdUzMgy2cRr P2yavIznbaxYvTKDN+gJrQL1OELJ3FSigoaL0FwNHmLcsekX7leHBWzQ8TcX/STzxqWU y5fijowUPYES5Ch/wxIEIvowDvCZ/u912Bu/5UEs3qlkKID/yMNrTnqiSSCBaSZa+nCC N54+iOd1UItcTU+MefMZaQ/L2mtDE/8dGDDqXMkLGNHfJy9m/BNYhKs8wg8PLT6f0VKg oMBCGqtRZwIRQ/5rv/k+1EbRqoUxvgpjbojzj0TDDka3oDfz7viR5LWpA9E96E+T11kq SSFQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f3si15915936plr.136.2019.04.23.02.38.37; Tue, 23 Apr 2019 02:38:51 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727180AbfDWJg3 (ORCPT + 99 others); Tue, 23 Apr 2019 05:36:29 -0400 Received: from out30-45.freemail.mail.aliyun.com ([115.124.30.45]:47987 "EHLO out30-45.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726150AbfDWJg3 (ORCPT ); Tue, 23 Apr 2019 05:36:29 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R151e4;CH=green;DM=||false|;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04407;MF=yun.wang@linux.alibaba.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---0TQ1gYRd_1556012185; Received: from testdeMacBook-Pro.local(mailfrom:yun.wang@linux.alibaba.com fp:SMTPD_---0TQ1gYRd_1556012185) by smtp.aliyun-inc.com(127.0.0.1); Tue, 23 Apr 2019 17:36:26 +0800 Subject: Re: [RFC PATCH 2/5] numa: append per-node execution info in memory.numa_stat 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> <7be82809-79d3-f6a1-dfe8-dd14d2b35219@linux.alibaba.com> <20190423085248.GE11158@hirez.programming.kicks-ass.net> From: =?UTF-8?B?546L6LSH?= Message-ID: <8c3ad96d-7f3d-d966-6acc-8327023ae3f9@linux.alibaba.com> Date: Tue, 23 Apr 2019 17:36:25 +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: <20190423085248.GE11158@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2019/4/23 δΈ‹εˆ4:52, Peter Zijlstra wrote: > On Mon, Apr 22, 2019 at 10:12:20AM +0800, ηŽ‹θ΄‡ wrote: >> This patch introduced numa execution information, to imply the numa >> efficiency. >> >> By doing 'cat /sys/fs/cgroup/memory/CGROUP_PATH/memory.numa_stat', we >> see new output line heading with 'exectime', like: >> >> exectime 24399843 27865444 >> >> which means the tasks of this cgroup executed 24399843 ticks on node 0, >> and 27865444 ticks on node 1. > > I think we stopped reporting time in HZ to userspace a long long time > ago. Please don't do that. Ah I see, let's make it us maybe? Regards, Michael Wang >