From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757352Ab3BFS3P (ORCPT ); Wed, 6 Feb 2013 13:29:15 -0500 Received: from mail-wi0-f169.google.com ([209.85.212.169]:37731 "EHLO mail-wi0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754059Ab3BFS3O (ORCPT ); Wed, 6 Feb 2013 13:29:14 -0500 From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Alessio Igor Bogani , Andrew Morton , Chris Metcalf , Christoph Lameter , Geoff Levand , Gilad Ben Yossef , Hakan Akkan , Ingo Molnar , Li Zhong , Namhyung Kim , "Paul E. McKenney" , Paul Gortmaker , Peter Zijlstra , Steven Rostedt , Thomas Gleixner Subject: [ANNOUNCE] 3.8-rc6-nohz4 Date: Wed, 6 Feb 2013 19:28:58 +0100 Message-Id: <1360175338-6735-1-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.7.5.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, The support for printk and cputime accounting to work on full dynticks CPUs have been merged in -tip tree and is likely deemed for the 3.9 merge window. So this new release is a rebase against the relevant branches in -tip and v3.8-rc6. The remaining amount of patches has thus quite schrinked. You can pull this branch from: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git 3.8-rc6-nohz4 Remember it doesn't yet support everything the tick does, namely it lacks full support for: - Posix CPU timers - Perf events - sched_class::task_tick() - various other scheduler details - ... So use it with caution! Thanks. PS: next upstream focus will probably be on posix cpu timers. May be we can try to make it work using timer_list or hrtimers, I don't know yet. I need to experiment. --- Changes since 3.8-rc4-nohz3 (including those of cputime): * Rebase against v3.8-rc6 and latest tip:/sched/core and tip:/irq/core * Fix cputime build error with kvm modules (Thanks Sedat Dilek and Wu Fenguang) * Fix cputime mistyped header inclusion in ia64 * Fix more missing symbols for kvm * Removal of profiling's timer hook also applied in -tip --- Frederic Weisbecker (26): nohz: Basic full dynticks interface nohz: Assign timekeeping duty to a non-full-nohz CPU nohz: Trace timekeeping update nohz: Wake up full dynticks CPUs when a timer gets enqueued rcu: Restart the tick on non-responding full dynticks CPUs sched: Comment on rq->clock correctness in ttwu_do_wakeup() in nohz sched: Update rq clock on nohz CPU before migrating tasks sched: Update rq clock on nohz CPU before setting fair group shares sched: Update rq clock on tickless CPUs before calling check_preempt_curr() sched: Update rq clock earlier in unthrottle_cfs_rq sched: Update clock of nohz busiest rq before balancing sched: Update rq clock before idle balancing sched: Update nohz rq clock before searching busiest group on load balancing nohz: Move nohz load balancer selection into idle logic nohz: Full dynticks mode nohz: Only stop the tick on RCU nocb CPUs nohz: Don't turn off the tick if rcu needs it nohz: Don't stop the tick if posix cpu timers are running nohz: Add some tracing rcu: Don't keep the tick for RCU while in userspace timer: Don't run non-pinned timer to full dynticks CPUs sched: Use an accessor to read rq clock sched: Debug nohz rq clock sched: Remove broken check for skip clock update sched: Update rq clock before rt sched average scale sched: Disable lb_bias feature for full dynticks include/linux/posix-timers.h | 1 + include/linux/rcupdate.h | 8 +++ include/linux/sched.h | 10 +++- include/linux/tick.h | 9 +++ kernel/hrtimer.c | 3 +- kernel/posix-cpu-timers.c | 11 ++++ kernel/rcutree.c | 19 +++++-- kernel/rcutree.h | 1 - kernel/rcutree_plugin.h | 13 +--- kernel/sched/core.c | 104 ++++++++++++++++++++++++++++++--- kernel/sched/fair.c | 96 ++++++++++++++++++++++-------- kernel/sched/features.h | 3 + kernel/sched/rt.c | 8 +- kernel/sched/sched.h | 50 ++++++++++++++++ kernel/sched/stats.h | 8 +- kernel/sched/stop_task.c | 8 +- kernel/softirq.c | 5 +- kernel/time/Kconfig | 9 +++ kernel/time/tick-broadcast.c | 3 +- kernel/time/tick-common.c | 5 +- kernel/time/tick-sched.c | 132 +++++++++++++++++++++++++++++++++++++---- kernel/timer.c | 5 +- 22 files changed, 427 insertions(+), 84 deletions(-) -- 1.7.5.4