From patchwork Mon Sep 28 12:52:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 11803755 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 28BD56CA for ; Mon, 28 Sep 2020 12:57:40 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EF9D5206D9 for ; Mon, 28 Sep 2020 12:57:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ahos724S" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EF9D5206D9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8RLmq44/qa3ctiGzalmqOQMZ/dpsuUSksuzxa1OwSXg=; b=ahos724SbhbTaO/JAB0hqmGYY 1r8OFEHo3KQfPK38jKumwoLFetYKqzz0M9M73jTlc67VhOBGo9cpgrH9E/pP1tWakNJRxVSy2UcRw 3KDMOpfAmv87sAaS10AHb83chloNfHLN8VkNSB8HKscCxCBXEYF9Wdd/rvaO9T9BemibmYMbnlHra xM+mt7A3ZvBM4sIZBlXWdi5D3qKulsaffwpvqepfOlUf9n0IgB8iaFGEp9Fu4pyWw4HsWSzjQMkp4 GmmlkM19sEpm6GjhFmz1eDTZtRgiIBHV/4EOrgcl8auTMnLXGd9CXQ2lL5otsG7BYogS9sw5HMMkc TLEOND9NA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kMsif-0000VX-8X; Mon, 28 Sep 2020 12:57:29 +0000 Received: from szxga05-in.huawei.com ([45.249.212.191] helo=huawei.com) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kMsiY-0000PS-Rk for linux-arm-kernel@lists.infradead.org; Mon, 28 Sep 2020 12:57:25 +0000 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id A282C398555205D45582; Mon, 28 Sep 2020 20:57:12 +0800 (CST) Received: from lhrphicprd00229.huawei.com (10.123.41.22) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Mon, 28 Sep 2020 20:57:06 +0800 From: Jonathan Cameron To: , , , , Lorenzo Pieralisi , , Ingo Molnar Subject: [PATCH v11 6/6] docs: mm: numaperf.rst Add brief description for access class 1. Date: Mon, 28 Sep 2020 20:52:35 +0800 Message-ID: <20200928125235.446188-7-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20200928125235.446188-1-Jonathan.Cameron@huawei.com> References: <20200928125235.446188-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.123.41.22] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200928_085724_310537_938EE48D X-CRM114-Status: UNSURE ( 9.54 ) X-CRM114-Notice: Please train this message. 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Signed-off-by: Jonathan Cameron --- v11: No change. 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 4d69ef1de830..b89bb85eac75 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 NICs. 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 1, takes the same form, but only includes values for CPU to +memory activity. + ========== NUMA Cache ==========