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(-)
next 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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