All of lore.kernel.org
 help / color / mirror / Atom feed
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1518112779-30196-1-git-send-email-frederic@kernel.org \
    --to=frederic@kernel.org \
    --cc=cl@linux.com \
    --cc=cmetcalf@mellanox.com \
    --cc=efault@gmx.de \
    --cc=kernellwp@gmail.com \
    --cc=lcapitulino@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=paulmck@linux.vnet.ibm.com \
    --cc=peterz@infradead.org \
    --cc=riel@redhat.com \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.