Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752574AbbKYTKN (ORCPT ); Wed, 25 Nov 2015 14:10:13 -0500 Received: from g2t4619.austin.hp.com ([15.73.212.82]:36314 "EHLO g2t4619.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751738AbbKYTKJ (ORCPT ); Wed, 25 Nov 2015 14:10:09 -0500 From: Waiman Long To: Ingo Molnar , Peter Zijlstra Cc: linux-kernel@vger.kernel.org, Scott J Norton , Douglas Hatch , Waiman Long Subject: [PATCH 0/3] sched/fair: Reduce contention on tg's load_avg Date: Wed, 25 Nov 2015 14:09:37 -0500 Message-Id: <1448478580-26467-1-git-send-email-Waiman.Long@hpe.com> X-Mailer: git-send-email 1.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 853 Lines: 20 This patch series tries to reduce contention on task_group's load_avg to improve system performance. It also tries to optimize the use of idle_cpu() call in update_sg_lb_stats(). Waiman Long (3): sched/fair: Avoid redundant idle_cpu() call in update_sg_lb_stats() sched/fair: Move hot load_avg into its own cacheline sched/fair: Use different cachelines for readers and writers of load_avg kernel/sched/core.c | 9 +++++++++ kernel/sched/fair.c | 40 +++++++++++++++++++++++++++++++++++----- kernel/sched/sched.h | 15 ++++++++++++++- 3 files changed, 58 insertions(+), 6 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/