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[2001:8b0:10b:1231::1]) by mx.google.com with ESMTPS id p21si11340224iod.30.2019.07.12.02.42.24 for (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Fri, 12 Jul 2019 02:42:24 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of peterz@infradead.org designates 2001:8b0:10b:1231::1 as permitted sender) client-ip=2001:8b0:10b:1231::1; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=merlin.20170209 header.b=mSrNEGpr; spf=pass (google.com: best guess record for domain of peterz@infradead.org designates 2001:8b0:10b:1231::1 as permitted sender) smtp.mailfrom=peterz@infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Transfer-Encoding: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Sender:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=8/S1+jX16TzxOOIxU/bRAzwTmHAX9u5kySICahCztRc=; b=mSrNEGprNQlxAb5b94YQqMyPMz kO0qgKwAjdYbQbt4ZLUYljy7WNvo98DtdOjLMkwQcC+18PUw+zCus/8lHAlhzfenlvKk3/Z2vY4/9 poGaxdm1lKQXL+ObIt2v7JWeRaLtiqVQcLZdQ1GMpReUW8AmwLtxny/yVm2355jnSfECJcJqkElr0 efFJMK0rpeOmHiLR4LtJhRb00cGecEEyJHgZct4gLmv1Qhuko/MvaUi4iuh7hx96d+cEh7LTSKMrR vq7hEteI36agAuTFdorAWUAocaMJg+9QtIMY2HCGkgtIpARgexlahUx3JF76qIbmqIXKBArIUAa4D 0F/wsyBQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hls4F-0004Df-KT; Fri, 12 Jul 2019 09:42:15 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 4236020120CB1; Fri, 12 Jul 2019 11:42:14 +0200 (CEST) Date: Fri, 12 Jul 2019 11:42:14 +0200 From: Peter Zijlstra To: =?utf-8?B?546L6LSH?= Cc: hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com, Ingo Molnar , linux-kernel@vger.kernel.org, linux-mm@kvack.org, mcgrof@kernel.org, keescook@chromium.org, linux-fsdevel@vger.kernel.org, cgroups@vger.kernel.org, Mel Gorman , riel@surriel.com Subject: Re: [PATCH 1/4] numa: introduce per-cgroup numa balancing locality, statistic Message-ID: <20190712094214.GR3402@hirez.programming.kicks-ass.net> 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> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <37474414-1a54-8e3a-60df-eb7e5e1cc1ed@linux.alibaba.com> 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: On Fri, Jul 12, 2019 at 05:11:25PM +0800, ηŽ‹θ΄‡ wrote: > > > On 2019/7/12 δΈ‹εˆ3:58, Peter Zijlstra wrote: > [snip] > >>> > >>> Then our task t1 should be accounted to B (as you do), but also to A and > >>> R. > >> > >> I get the point but not quite sure about this... > >> > >> Not like pages there are no hierarchical limitation on locality, also tasks > > > > You can use cpusets to affect that. > > Could you please give more detail on this? Documentation/cgroup-v1/cpusets.txt Look for mems_allowed.