From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96D1EC433B4 for ; Tue, 13 Apr 2021 19:00:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 70A7F613CC for ; Tue, 13 Apr 2021 19:00:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240161AbhDMTBF (ORCPT ); Tue, 13 Apr 2021 15:01:05 -0400 Received: from mga05.intel.com ([192.55.52.43]:34357 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230397AbhDMTBE (ORCPT ); Tue, 13 Apr 2021 15:01:04 -0400 IronPort-SDR: S4Oy7l2ID2WDCBasHKZHaUkg3XwYVfIUGih/wbF16bgGrRpuJ+7m+i+HAoj76KknRwGbIYxrMW zOwTeaprXisw== X-IronPort-AV: E=McAfee;i="6200,9189,9953"; a="279791308" X-IronPort-AV: E=Sophos;i="5.82,220,1613462400"; d="scan'208";a="279791308" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2021 12:00:35 -0700 IronPort-SDR: YEYZ9PrUFNIeD52/0lbNqFpdYVSE/a+PNNIjh2WVNCHXLUZfot91z4rJjSy1FXquDjx8EX3LFd RrTQi7kdgTyg== X-IronPort-AV: E=Sophos;i="5.82,220,1613462400"; d="scan'208";a="443533651" Received: from schen9-mobl.amr.corp.intel.com ([10.209.18.184]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2021 12:00:34 -0700 Subject: Re: [RFC PATCH v3 0/2] scheduler: expose the topology of clusters and add cluster scheduler To: "Song Bao Hua (Barry Song)" , Dietmar Eggemann , Morten Rasmussen Cc: "valentin.schneider@arm.com" , "catalin.marinas@arm.com" , "will@kernel.org" , "rjw@rjwysocki.net" , "vincent.guittot@linaro.org" , "lenb@kernel.org" , "gregkh@linuxfoundation.org" , Jonathan Cameron , "mingo@redhat.com" , "peterz@infradead.org" , "juri.lelli@redhat.com" , "rostedt@goodmis.org" , "bsegall@google.com" , "mgorman@suse.de" , "mark.rutland@arm.com" , "sudeep.holla@arm.com" , "aubrey.li@linux.intel.com" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "linux-acpi@vger.kernel.org" , "linuxarm@openeuler.org" , "xuwei (O)" , "Zengtao (B)" , "tiantao (H)" , Guodong Xu , yangyicong References: <20210106083026.40444-1-song.bao.hua@hisilicon.com> <737932c9-846a-0a6b-08b8-e2d2d95b67ce@linux.intel.com> <20210108151241.GA47324@e123083-lin> <99c07bdf-02d1-153a-bd1e-2f4200cc67c5@linux.intel.com> <20210111092811.GB47324@e123083-lin> <4fdc781e-7385-2ae6-d9c9-3ec165f473c4@arm.com> <9201b56a29dd4dacb7d9fcbf307ca5ff@hisilicon.com> From: Tim Chen Message-ID: <6e067798-5585-5169-38fc-77e173831af5@linux.intel.com> Date: Tue, 13 Apr 2021 12:00:27 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <9201b56a29dd4dacb7d9fcbf307ca5ff@hisilicon.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On 4/13/21 3:45 AM, Song Bao Hua (Barry Song) wrote: > > > > Right now in the main cases of using wake_affine to achieve > better performance, processes are actually bound within one > numa which is also a LLC in kunpeng920. > > Probably LLC=NUMA is also true for X86 Jacobsville, Tim? In general for x86, LLC is partitioned at the sub-numa cluster level. LLC could be divided between sub-numa cluster within a NUMA node. That said, for Jacobsville, we don't have sub-numa clusters so LLC=NUMA is true for that platform. Tim