From patchwork Mon Dec 16 15:38:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 11294425 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BCAFE112B for ; Mon, 16 Dec 2019 15:39:39 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 88D84205C9 for ; Mon, 16 Dec 2019 15:39:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 88D84205C9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B5F058E000C; Mon, 16 Dec 2019 10:39:38 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id B360D8E0005; Mon, 16 Dec 2019 10:39:38 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A73138E000C; Mon, 16 Dec 2019 10:39:38 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0183.hostedemail.com [216.40.44.183]) by kanga.kvack.org (Postfix) with ESMTP id 903DD8E0005 for ; Mon, 16 Dec 2019 10:39:38 -0500 (EST) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id 17B7A181AC553 for ; Mon, 16 Dec 2019 15:39:38 +0000 (UTC) X-FDA: 76271414436.08.force86_7122a25668920 X-Spam-Summary: 1,0,0,,d41d8cd98f00b204,jonathan.cameron@huawei.com,::linux-acpi@vger.kernel.org:linux-kernel@vger.kernel.org:linux-arm-kernel@lists.infradead.org:x86@kernel.org:keith.busch@intel.com:jglisse@redhat.com:rjw@rjwysocki.net:linuxarm@huawei.com:akpm@linux-foundation.org:dan.j.williams@intel.com:tao3.xu@intel.com:brice.goglin@gmail.com:lorenzo.pieralisi@arm.com:guohanjun@huawei.com:sudeep.holla@arm.com:jonathan.cameron@huawei.com,RULES_HIT:30054:30070,0,RBL:45.249.212.32:@huawei.com:.lbl8.mailshell.net-62.18.2.100 64.95.201.95,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:24,LUA_SUMMARY:none X-HE-Tag: force86_7122a25668920 X-Filterd-Recvd-Size: 3117 Received: from huawei.com (szxga06-in.huawei.com [45.249.212.32]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Mon, 16 Dec 2019 15:39:37 +0000 (UTC) Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id B4EE5CC4E77E0A584EE6; Mon, 16 Dec 2019 23:39:28 +0800 (CST) Received: from lhrphicprd00229.huawei.com (10.123.41.22) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.439.0; Mon, 16 Dec 2019 23:39:18 +0800 From: Jonathan Cameron To: , , , , CC: Keith Busch , , "Rafael J . Wysocki" , , Andrew Morton , Dan Williams , Tao Xu , Brice Goglin , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Jonathan Cameron Subject: [PATCH V6 7/7] docs: mm: numaperf.rst Add brief description for access class 1. Date: Mon, 16 Dec 2019 23:38:09 +0800 Message-ID: <20191216153809.105463-8-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20191216153809.105463-1-Jonathan.Cameron@huawei.com> References: <20191216153809.105463-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.123.41.22] X-CFilter-Loop: Reflected 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: Try to make minimal changes to the document which already describes access class 0 in a generic fashion (including IO initiatiors that are not CPUs). Signed-off-by: Jonathan Cameron --- Documentation/admin-guide/mm/numaperf.rst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/admin-guide/mm/numaperf.rst b/Documentation/admin-guide/mm/numaperf.rst index a80c3c37226e..327c0d72692d 100644 --- a/Documentation/admin-guide/mm/numaperf.rst +++ b/Documentation/admin-guide/mm/numaperf.rst @@ -56,6 +56,11 @@ nodes' access characteristics share the same performance relative to other linked initiator nodes. Each target within an initiator's access class, though, do not necessarily perform the same as each other. +The access class "1" is used to allow differentiation between initiators +that are CPUs and hence suitable for generic task scheduling, and +IO initiators such as GPUs and CPUs. Unlike access class 0, only +nodes containing CPUs are considered. + ================ NUMA Performance ================ @@ -88,6 +93,9 @@ The latency attributes are provided in nanoseconds. The values reported here correspond to the rated latency and bandwidth for the platform. +Access class 0, takes the same form, but only includes values for CPU to +memory activity. + ========== NUMA Cache ==========