From patchwork Fri May 30 06:36:03 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuyang Du X-Patchwork-Id: 4271331 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 40BFFBEEA7 for ; Fri, 30 May 2014 14:43:55 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8846220397 for ; Fri, 30 May 2014 14:43:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B179B20384 for ; Fri, 30 May 2014 14:43:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933515AbaE3OlS (ORCPT ); Fri, 30 May 2014 10:41:18 -0400 Received: from mga02.intel.com ([134.134.136.20]:55059 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933513AbaE3OlR (ORCPT ); Fri, 30 May 2014 10:41:17 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 30 May 2014 07:41:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.98,941,1392192000"; d="scan'208";a="548947003" Received: from dalvikqa005-desktop.bj.intel.com ([10.238.151.105]) by orsmga002.jf.intel.com with ESMTP; 30 May 2014 07:41:10 -0700 From: Yuyang Du To: mingo@redhat.com, peterz@infradead.org, rafael.j.wysocki@intel.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: arjan.van.de.ven@intel.com, len.brown@intel.com, alan.cox@intel.com, mark.gross@intel.com, pjt@google.com, bsegall@google.com, morten.rasmussen@arm.com, vincent.guittot@linaro.org, rajeev.d.muralidhar@intel.com, vishwesh.m.rudramuni@intel.com, nicole.chalhoub@intel.com, ajaya.durg@intel.com, harinarayanan.seshadri@intel.com, jacob.jun.pan@linux.intel.com, fengguang.wu@intel.com, yuyang.du@intel.com Subject: [RFC PATCH 07/16 v3] Init Workload Consolidation flags in sched_domain Date: Fri, 30 May 2014 14:36:03 +0800 Message-Id: <1401431772-14320-8-git-send-email-yuyang.du@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1401431772-14320-1-git-send-email-yuyang.du@intel.com> References: <1401431772-14320-1-git-send-email-yuyang.du@intel.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-6.0 required=5.0 tests=BAYES_00, DATE_IN_PAST_06_12, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Workload Consolidation can be enabled/disabled on the fly. This patchset enables MC and CPU domain WC by default. To enable CPU WC (SD_WORKLOAD_CONSOLIDATION=0x8000): sysctl -w kernel.sched_domain.cpuX.domainY.flags += 0x8000 To disable CPU WC: sysctl -w kernel.sched_domain.cpuX.domainY.flags -= 0x8000 Signed-off-by: Yuyang Du --- include/linux/topology.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/topology.h b/include/linux/topology.h index 7062330..ebc339c3 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -102,12 +102,14 @@ int arch_update_cpu_topology(void); | 0*SD_SERIALIZE \ | 0*SD_PREFER_SIBLING \ | arch_sd_sibling_asym_packing() \ + | 0*SD_WORKLOAD_CONSOLIDATION \ , \ .last_balance = jiffies, \ .balance_interval = 1, \ .smt_gain = 1178, /* 15% */ \ .max_newidle_lb_cost = 0, \ .next_decay_max_lb_cost = jiffies, \ + .consolidating_coeff = 0, \ } #endif #endif /* CONFIG_SCHED_SMT */ @@ -134,11 +136,13 @@ int arch_update_cpu_topology(void); | 0*SD_SHARE_CPUPOWER \ | 1*SD_SHARE_PKG_RESOURCES \ | 0*SD_SERIALIZE \ + | 1*SD_WORKLOAD_CONSOLIDATION \ , \ .last_balance = jiffies, \ .balance_interval = 1, \ .max_newidle_lb_cost = 0, \ .next_decay_max_lb_cost = jiffies, \ + .consolidating_coeff = 180, \ } #endif #endif /* CONFIG_SCHED_MC */ @@ -167,11 +171,13 @@ int arch_update_cpu_topology(void); | 0*SD_SHARE_PKG_RESOURCES \ | 0*SD_SERIALIZE \ | 1*SD_PREFER_SIBLING \ + | 1*SD_WORKLOAD_CONSOLIDATION \ , \ .last_balance = jiffies, \ .balance_interval = 1, \ .max_newidle_lb_cost = 0, \ .next_decay_max_lb_cost = jiffies, \ + .consolidating_coeff = 180, \ } #endif