From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752592AbeBHR76 (ORCPT ); Thu, 8 Feb 2018 12:59:58 -0500 Received: from mail.kernel.org ([198.145.29.99]:50986 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752389AbeBHR74 (ORCPT ); Thu, 8 Feb 2018 12:59:56 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3FC021796 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=frederic@kernel.org From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Peter Zijlstra , Chris Metcalf , Thomas Gleixner , Luiz Capitulino , Christoph Lameter , "Paul E . McKenney" , Ingo Molnar , Wanpeng Li , Mike Galbraith , Rik van Riel Subject: [PATCH 0/6] isolation: 1Hz residual tick offloading v5 Date: Thu, 8 Feb 2018 18:59:33 +0100 Message-Id: <1518112779-30196-1-git-send-email-frederic@kernel.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series should address most reviews from Peterz in v4: * Check that the remote tick doesn't come way too late. For that we track the last time we called update_curr() with checking tsk->se.exec_start which doesn't only account for ticks but also queue and dequeue events. * Add comment to explain why we use HZ as a delay * Feed changelog with explanation about correctness assumptions on calling rq::task_tick() remotely. The last element is to enforce unbound workqueues to queue a work on a CPU of the same node when the enqueuer is outside the unbound mask. This will be sorted out seperately. git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git sched/0hz-v5 HEAD: 62711eb7856882d443615f0ef0ba9518977b7abd Thanks, Frederic --- Frederic Weisbecker (6): sched: Rename init_rq_hrtick to hrtick_rq_init nohz: Allow to check if remote CPU tick is stopped sched/isolation: Isolate workqueues when "nohz_full=" is set sched/isolation: Residual 1Hz scheduler tick offload sched/nohz: Remove the 1 Hz tick code sched/isolation: Tick offload documentation Documentation/admin-guide/kernel-parameters.txt | 6 +- include/linux/sched/isolation.h | 1 + include/linux/sched/nohz.h | 4 - include/linux/tick.h | 2 + kernel/sched/core.c | 116 ++++++++++++++++++------ kernel/sched/idle_task.c | 1 - kernel/sched/isolation.c | 8 +- kernel/sched/sched.h | 13 +-- kernel/time/tick-sched.c | 13 +-- kernel/workqueue.c | 3 +- 10 files changed, 115 insertions(+), 52 deletions(-)