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From: Frederic Weisbecker <frederic@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Luiz Capitulino <lcapitulino@redhat.com>,
	Christoph Lameter <cl@linux.com>,
	"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
	Ingo Molnar <mingo@kernel.org>, Wanpeng Li <kernellwp@gmail.com>,
	Mike Galbraith <efault@gmx.de>, Rik van Riel <riel@redhat.com>
Subject: [PATCH 0/6] isolation: 1Hz residual tick offloading v5
Date: Thu,  8 Feb 2018 18:59:33 +0100	[thread overview]
Message-ID: <1518112779-30196-1-git-send-email-frederic@kernel.org> (raw)

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(-)

             reply	other threads:[~2018-02-08 17:59 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-08 17:59 Frederic Weisbecker [this message]
2018-02-08 17:59 ` [PATCH 1/6] sched: Rename init_rq_hrtick to hrtick_rq_init Frederic Weisbecker
2018-02-09  6:53   ` Ingo Molnar
2018-02-08 17:59 ` [PATCH 2/6] nohz: Allow to check if remote CPU tick is stopped Frederic Weisbecker
2018-02-08 17:59 ` [PATCH 3/6] sched/isolation: Isolate workqueues when "nohz_full=" is set Frederic Weisbecker
2018-02-09  6:55   ` Ingo Molnar
2018-02-10 10:22     ` Frederic Weisbecker
2018-02-08 17:59 ` [PATCH 4/6] sched/isolation: Residual 1Hz scheduler tick offload Frederic Weisbecker
2018-02-09  7:16   ` Ingo Molnar
2018-02-10 10:29     ` Frederic Weisbecker
2018-02-08 17:59 ` [PATCH 5/6] sched/nohz: Remove the 1 Hz tick code Frederic Weisbecker
2018-02-08 17:59 ` [PATCH 6/6] sched/isolation: Tick offload documentation Frederic Weisbecker
2018-02-09  7:06   ` Ingo Molnar
2018-02-14 14:52     ` Frederic Weisbecker
2018-02-09  7:00 ` [PATCH 0/6] isolation: 1Hz residual tick offloading v5 Ingo Molnar
2018-02-10 10:24   ` Frederic Weisbecker

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