From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031168Ab2CUOAs (ORCPT ); Wed, 21 Mar 2012 10:00:48 -0400 Received: from mail-we0-f174.google.com ([74.125.82.174]:42977 "EHLO mail-we0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031146Ab2CUOAd (ORCPT ); Wed, 21 Mar 2012 10:00:33 -0400 From: Frederic Weisbecker To: LKML , linaro-sched-sig@lists.linaro.org Cc: Frederic Weisbecker , Alessio Igor Bogani , Andrew Morton , Avi Kivity , Chris Metcalf , Christoph Lameter , Daniel Lezcano , Geoff Levand , Gilad Ben Yossef , Ingo Molnar , Max Krasnyansky , "Paul E. McKenney" , Peter Zijlstra , Stephen Hemminger , Steven Rostedt , Sven-Thorsten Dietrich , Thomas Gleixner , Zen Lin Subject: [PATCH 32/32] nohz/cpuset: Disable under some configs Date: Wed, 21 Mar 2012 14:58:38 +0100 Message-Id: <1332338318-5958-34-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1332338318-5958-1-git-send-email-fweisbec@gmail.com> References: <1332338318-5958-1-git-send-email-fweisbec@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This shows the various things that are not yet handled by the nohz cpusets: perf events, irq work, irq time accounting. But there are further things that have yet to be handled: sched clock tick, runqueue clock, sched_class::task_tick(), rq clock, cpu load, complete handling of cputimes, ... Signed-off-by: Frederic Weisbecker Cc: Alessio Igor Bogani Cc: Andrew Morton Cc: Avi Kivity Cc: Chris Metcalf Cc: Christoph Lameter Cc: Daniel Lezcano Cc: Geoff Levand Cc: Gilad Ben Yossef Cc: Ingo Molnar Cc: Max Krasnyansky Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Stephen Hemminger Cc: Steven Rostedt Cc: Sven-Thorsten Dietrich Cc: Thomas Gleixner Cc: Zen Lin --- init/Kconfig | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index 7cdb8be..3080b16 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -640,7 +640,7 @@ config PROC_PID_CPUSET config CPUSETS_NO_HZ bool "Tickless cpusets" - depends on CPUSETS && HAVE_CPUSETS_NO_HZ && NO_HZ && HIGH_RES_TIMERS + depends on CPUSETS && HAVE_CPUSETS_NO_HZ && NO_HZ && HIGH_RES_TIMERS && !IRQ_TIME_ACCOUNTING help This options let you apply a nohz property to a cpuset such that the periodic timer tick tries to be avoided when possible on -- 1.7.5.4