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From: Vincent Guittot <vincent.guittot@linaro.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Joel Fernandes <joel@joelfernandes.org>,
	"Hyser,Chris" <chris.hyser@oracle.com>,
	Josh Don <joshdon@google.com>, Ingo Molnar <mingo@kernel.org>,
	Valentin Schneider <valentin.schneider@arm.com>,
	Mel Gorman <mgorman@suse.de>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 00/19] sched: Core Scheduling
Date: Tue, 11 May 2021 09:00:12 +0200
Message-ID: <CAKfTPtBLr9bk68q7cuFOhYfKYvigGaB+TEeGzU_p4egQXq2gLA@mail.gmail.com> (raw)
In-Reply-To: <CAKfTPtAtRYTVaqWtWEMYt82SwU54-Nj19WYvOyjZJv9jXVVJRA@mail.gmail.com>

On Mon, 10 May 2021 at 18:16, Vincent Guittot
<vincent.guittot@linaro.org> wrote:
>
> Hi Peter,
>
> On Thu, 22 Apr 2021 at 14:36, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > Hai,
> >
> > This is an agressive fold of all the core-scheduling work so far. I've stripped
> > a whole bunch of tags along the way (hopefully not too many, please yell if you
> > feel I made a mistake), including tested-by. Please retest.
> >
> > Changes since the last partial post is dropping all the cgroup stuff and
> > PR_SCHED_CORE_CLEAR as well as that exec() behaviour in order to later resolve
> > the cgroup issue.
> >
> > Since we're really rather late for the coming merge window, my plan was to
> > merge the lot right after the merge window.
> >
> > Again, please test.
>
> I have run various tests with your sched/core-sched branch on my arm64
> machine: 2 numa * 28 cores * SMT4
>
> List of tests:
> perf sched pipe
> hackbench process and threads with 1,4,16,32,64,128,256 groups
> tbench with 1,4,16,32,64,128,256 groups
> Unixbench shell and exec
> reaim
>
> core-sched was compiled but not used: CONFIG_SCHED_CORE=y
>
> I haven't seen any regressions or problems; it's a mix of +/- 1-2%. I
> have only seen one significant improvement for hackbench -g 1 (+4.92%)
> that I don't really explain. Will dig a bit one this later
>
> So Tested-by: Vincent Guittot <vincent.guitto@linaro.org>

Tested-by: Vincent Guittot <vincent.guittot@linaro.org>

With the correct email address

>
>
>
> >
> > These patches should shortly be available in my queue.git.
> >
> > ---
> >  b/kernel/sched/core_sched.c                     |  229 ++++++
> >  b/tools/testing/selftests/sched/.gitignore      |    1
> >  b/tools/testing/selftests/sched/Makefile        |   14
> >  b/tools/testing/selftests/sched/config          |    1
> >  b/tools/testing/selftests/sched/cs_prctl_test.c |  338 +++++++++
> >  include/linux/sched.h                           |   19
> >  include/uapi/linux/prctl.h                      |    8
> >  kernel/Kconfig.preempt                          |    6
> >  kernel/fork.c                                   |    4
> >  kernel/sched/Makefile                           |    1
> >  kernel/sched/core.c                             |  858 ++++++++++++++++++++++--
> >  kernel/sched/cpuacct.c                          |   12
> >  kernel/sched/deadline.c                         |   38 -
> >  kernel/sched/debug.c                            |    4
> >  kernel/sched/fair.c                             |  276 +++++--
> >  kernel/sched/idle.c                             |   13
> >  kernel/sched/pelt.h                             |    2
> >  kernel/sched/rt.c                               |   31
> >  kernel/sched/sched.h                            |  393 ++++++++--
> >  kernel/sched/stop_task.c                        |   14
> >  kernel/sched/topology.c                         |    4
> >  kernel/sys.c                                    |    5
> >  tools/include/uapi/linux/prctl.h                |    8
> >  23 files changed, 2057 insertions(+), 222 deletions(-)
> >

      reply index

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-22 12:04 Peter Zijlstra
2021-04-22 12:05 ` [PATCH 01/19] sched/fair: Add a few assertions Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-05-13  8:56     ` Ning, Hongyu
2021-04-22 12:05 ` [PATCH 02/19] sched: Provide raw_spin_rq_*lock*() helpers Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 03/19] sched: Wrap rq::lock access Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 04/19] sched: Prepare for Core-wide rq->lock Peter Zijlstra
2021-04-24  1:22   ` Josh Don
2021-04-26  8:31     ` Peter Zijlstra
2021-04-26 22:21       ` Josh Don
2021-04-27 17:10         ` Don Hiatt
2021-04-27 23:35           ` Josh Don
2021-04-28  1:03             ` Aubrey Li
2021-04-28  6:05               ` Aubrey Li
2021-04-28 10:57                 ` Aubrey Li
2021-04-28 16:41                   ` Don Hiatt
2021-04-29 20:48                     ` Josh Don
2021-04-29 21:09                       ` Don Hiatt
2021-04-29 23:22                         ` Josh Don
2021-04-30 16:18                           ` Don Hiatt
2021-04-30  8:26                         ` Aubrey Li
2021-04-28 16:04             ` Don Hiatt
2021-04-27 23:30         ` Josh Don
2021-04-28  9:13           ` Peter Zijlstra
2021-04-28 10:35             ` Aubrey Li
2021-04-28 11:03               ` Peter Zijlstra
2021-04-28 14:18                 ` Paul E. McKenney
2021-04-29 20:11             ` Josh Don
2021-05-03 19:17               ` Peter Zijlstra
2021-04-28  7:13         ` Peter Zijlstra
2021-04-28  6:02   ` Aubrey Li
2021-04-29  8:03   ` Aubrey Li
2021-04-29 20:39     ` Josh Don
2021-04-30  8:20       ` Aubrey Li
2021-04-30  8:48         ` Josh Don
2021-04-30 14:15           ` Aubrey Li
2021-05-04  7:38       ` Peter Zijlstra
2021-05-05 16:20         ` Don Hiatt
2021-05-06 10:25           ` Peter Zijlstra
2021-05-07  9:50   ` [PATCH v2 " Peter Zijlstra
2021-05-08  8:07     ` Aubrey Li
2021-05-12  9:07       ` Peter Zijlstra
2021-04-22 12:05 ` [PATCH 05/19] sched: " Peter Zijlstra
2021-05-07  9:50   ` [PATCH v2 " Peter Zijlstra
2021-05-12 10:28     ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 06/19] sched: Optimize rq_lockp() usage Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 07/19] sched: Allow sched_core_put() from atomic context Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 08/19] sched: Introduce sched_class::pick_task() Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 09/19] sched: Basic tracking of matching tasks Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 10/19] sched: Add core wide task selection and scheduling Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 11/19] sched/fair: Fix forced idle sibling starvation corner case Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Vineeth Pillai
2021-04-22 12:05 ` [PATCH 12/19] sched: Fix priority inversion of cookied task with sibling Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Joel Fernandes (Google)
2021-04-22 12:05 ` [PATCH 13/19] sched/fair: Snapshot the min_vruntime of CPUs on force idle Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Joel Fernandes (Google)
2021-04-22 12:05 ` [PATCH 14/19] sched: Trivial forced-newidle balancer Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 15/19] sched: Migration changes for core scheduling Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Aubrey Li
2021-04-22 12:05 ` [PATCH 16/19] sched: Trivial core scheduling cookie management Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 17/19] sched: Inherit task cookie on fork() Peter Zijlstra
2021-05-10 16:06   ` Joel Fernandes
2021-05-10 16:22     ` Chris Hyser
2021-05-10 20:47       ` Joel Fernandes
2021-05-10 21:38         ` Chris Hyser
2021-05-12  9:05           ` Peter Zijlstra
2021-05-12 20:20             ` Josh Don
2021-05-12 21:07               ` Don Hiatt
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-04-22 12:05 ` [PATCH 18/19] sched: prctl() core-scheduling interface Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Chris Hyser
2021-06-14 23:36   ` [PATCH 18/19] " Josh Don
2021-06-15 11:31     ` Joel Fernandes
2021-04-22 12:05 ` [PATCH 19/19] kselftest: Add test for core sched prctl interface Peter Zijlstra
2021-05-12 10:28   ` [tip: sched/core] " tip-bot2 for Chris Hyser
2021-04-22 16:43 ` [PATCH 00/19] sched: Core Scheduling Don Hiatt
2021-04-22 17:29   ` Peter Zijlstra
2021-04-30  6:47 ` Ning, Hongyu
2021-05-06 10:29   ` Peter Zijlstra
2021-05-06 12:53     ` Ning, Hongyu
2021-05-07 18:02 ` Joel Fernandes
2021-05-10 16:16 ` Vincent Guittot
2021-05-11  7:00   ` Vincent Guittot [this message]

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