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From: Aubrey Li <aubrey.intel@gmail.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: "Julien Desfossez" <jdesfossez@digitalocean.com>,
	"Vineeth Remanan Pillai" <vpillai@digitalocean.com>,
	"Nishanth Aravamudan" <naravamudan@digitalocean.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Tim Chen" <tim.c.chen@linux.intel.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Paul Turner" <pjt@google.com>,
	"Linus Torvalds" <torvalds@linux-foundation.org>,
	"Linux List Kernel Mailing" <linux-kernel@vger.kernel.org>,
	"Subhra Mazumdar" <subhra.mazumdar@oracle.com>,
	"Frédéric Weisbecker" <fweisbec@gmail.com>,
	"Kees Cook" <keescook@chromium.org>,
	"Greg Kerr" <kerrnel@google.com>, "Phil Auld" <pauld@redhat.com>,
	"Aaron Lu" <aaron.lwe@gmail.com>,
	"Valentin Schneider" <valentin.schneider@arm.com>,
	"Mel Gorman" <mgorman@techsingularity.net>,
	"Pawan Gupta" <pawan.kumar.gupta@linux.intel.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>
Subject: Re: [RFC PATCH v2 00/17] Core scheduling v2
Date: Sat, 27 Apr 2019 23:54:24 +0800	[thread overview]
Message-ID: <CAERHkrtaU=Y-Lxypu_7uBbe-mJtG-3friz=ZLhV53X4FXHcEyA@mail.gmail.com> (raw)
In-Reply-To: <20190427142137.GA72051@gmail.com>

On Sat, Apr 27, 2019 at 10:21 PM Ingo Molnar <mingo@kernel.org> wrote:
>
> * Aubrey Li <aubrey.intel@gmail.com> wrote:
>
> > On Sat, Apr 27, 2019 at 5:17 PM Ingo Molnar <mingo@kernel.org> wrote:
> > >
> > >
> > > * Aubrey Li <aubrey.intel@gmail.com> wrote:
> > >
> > > > I have the same environment setup above, for nosmt cases, I used
> > > > /sys interface Thomas mentioned, below is the result:
> > > >
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 1/1      1.987( 1.97%)   2.043( 1.76%) -2.84% 1.985( 1.70%)  0.12%
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 2/2      2.074( 1.16%)   2.057( 2.09%)  0.81% 2.072( 0.77%)  0.10%
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 4/4      2.140( 0.00%)   2.138( 0.49%)  0.09% 2.137( 0.89%)  0.12%
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 8/8      2.140( 0.00%)   2.144( 0.53%) -0.17% 2.140( 0.00%)  0.00%
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 16/16    2.361( 2.99%)   2.369( 2.65%) -0.30% 2.406( 2.53%) -1.87%
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 32/32    5.032( 8.68%)   3.485( 0.49%) 30.76% 6.002(27.21%) -19.27%
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 64/64    7.577(34.35%)   3.972(23.18%) 47.57% 18.235(14.14%) -140.68%
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 128/128 24.639(14.28%)  27.440( 8.24%) -11.37% 34.746( 6.92%) -41.02%
> > > > NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
> > > > 256/256 38.797( 8.59%)  44.067(16.20%) -13.58% 42.536( 7.57%) -9.64%
> > >
> > > What do these numbers mean? Are these latencies, i.e. lower is better?
> >
> > Yeah, like above setup, I run sysbench(Non-AVX task, NA) and gemmbench
> > (AVX512 task, AVX) in different level utilizatoin. The machine has 104 CPUs, so
> > nosmt has 52 CPUs.  These numbers are 95th percentile latency of sysbench,
> > lower is better.
>
> But what we are really interested in are throughput numbers under these
> three kernel variants, right?
>

These are sysbench events per second number, higher is better.

NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
1/1       508.5( 0.2%)    504.7( 1.1%) -0.8%     509.0( 0.2%)  0.1%
NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
2/2      1000.2( 1.4%)   1004.1( 1.6%)  0.4%     997.6( 1.2%) -0.3%
NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
4/4      1912.1( 1.0%)   1904.2( 1.1%) -0.4%    1914.9( 1.3%)  0.1%
NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
8/8      3753.5( 0.3%)   3748.2( 0.3%) -0.1%    3751.3( 0.4%) -0.1%
NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
16/16    7139.3( 2.4%)   7137.9( 1.8%) -0.0%    7049.2( 2.4%) -1.3%
NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
32/32   10899.0( 4.2%)  10780.3( 4.4%) -1.1%    10339.2( 9.6%) -5.1%
NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
64/64   15086.1(11.5%)  14262.0( 8.2%) -5.5%    11168.7(22.2%) -26.0%
NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
128/128 15371.9(22.0%)  14675.8(14.4%) -4.5%    10963.9(18.5%) -28.7%
NA/AVX  baseline(std%)  coresched(std%) +/-     nosmt(std%) +/-
256/256 15990.8(22.0%)  12227.9(10.3%) -23.5%   10469.9(19.6%) -34.5%

  reply	other threads:[~2019-04-27 15:54 UTC|newest]

Thread overview: 109+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-23 16:18 [RFC PATCH v2 00/17] Core scheduling v2 Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 01/17] stop_machine: Fix stop_cpus_in_progress ordering Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 02/17] sched: Fix kerneldoc comment for ia64_set_curr_task Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 03/17] sched: Wrap rq::lock access Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 04/17] sched/{rt,deadline}: Fix set_next_task vs pick_next_task Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 05/17] sched: Add task_struct pointer to sched_class::set_curr_task Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 06/17] sched/fair: Export newidle_balance() Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 07/17] sched: Allow put_prev_task() to drop rq->lock Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 08/17] sched: Rework pick_next_task() slow-path Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 09/17] sched: Introduce sched_class::pick_task() Vineeth Remanan Pillai
2019-04-26 14:02   ` Peter Zijlstra
2019-04-26 16:10     ` Vineeth Remanan Pillai
2019-04-29  5:38   ` Aaron Lu
2019-04-23 16:18 ` [RFC PATCH v2 10/17] sched: Core-wide rq->lock Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 11/17] sched: Basic tracking of matching tasks Vineeth Remanan Pillai
2019-04-24  0:08   ` Tim Chen
2019-04-24 20:43     ` Vineeth Remanan Pillai
2019-04-24 22:12       ` Tim Chen
2019-04-25 14:35       ` Phil Auld
2019-05-22 19:52         ` Vineeth Remanan Pillai
2019-04-24  0:17   ` Tim Chen
2019-04-24 20:43     ` Vineeth Remanan Pillai
2019-04-29  3:36   ` Aaron Lu
2019-05-10 13:06     ` Peter Zijlstra
2019-04-29  6:15   ` Aaron Lu
2019-05-01 23:27     ` Tim Chen
2019-05-03  0:06       ` Tim Chen
2019-05-08 15:49         ` Aubrey Li
2019-05-08 18:19           ` Subhra Mazumdar
2019-05-08 18:37             ` Subhra Mazumdar
2019-05-09  0:01               ` Aubrey Li
2019-05-09  0:25                 ` Subhra Mazumdar
2019-05-09  1:38                   ` Aubrey Li
2019-05-09  2:14                     ` Subhra Mazumdar
2019-05-09 15:10                       ` Aubrey Li
2019-05-09 17:50                         ` Subhra Mazumdar
2019-05-10  0:09                           ` Tim Chen
2019-04-23 16:18 ` [RFC PATCH v2 12/17] sched: A quick and dirty cgroup tagging interface Vineeth Remanan Pillai
2019-04-25 14:26   ` Phil Auld
2019-04-26 14:13     ` Peter Zijlstra
2019-04-26 14:19       ` Phil Auld
2019-05-10 15:12   ` Julien Desfossez
2019-04-23 16:18 ` [RFC PATCH v2 13/17] sched: Add core wide task selection and scheduling Vineeth Remanan Pillai
2019-04-29  7:13   ` Aaron Lu
2019-05-18 15:37   ` Aubrey Li
2019-05-20 13:04     ` Phil Auld
2019-05-20 14:04       ` Vineeth Pillai
2019-05-21  8:19         ` Aubrey Li
2019-05-21 13:24           ` Vineeth Pillai
2019-04-23 16:18 ` [RFC PATCH v2 14/17] sched/fair: Add a few assertions Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 15/17] sched: Trivial forced-newidle balancer Vineeth Remanan Pillai
2019-04-23 23:46   ` Aubrey Li
2019-04-24 14:03     ` Vineeth Remanan Pillai
2019-04-24 14:05     ` Vineeth Remanan Pillai
2019-04-23 16:18 ` [RFC PATCH v2 16/17] sched: Wake up sibling if it has something to run Vineeth Remanan Pillai
2019-04-26 15:03   ` Peter Zijlstra
2019-04-29 12:36     ` Julien Desfossez
2019-04-23 16:18 ` [RFC PATCH v2 17/17] sched: Debug bits Vineeth Remanan Pillai
2019-05-17 17:18   ` Aubrey Li
2019-04-23 18:02 ` [RFC PATCH v2 00/17] Core scheduling v2 Phil Auld
2019-04-23 18:45   ` Vineeth Remanan Pillai
2019-04-29  3:53     ` Aaron Lu
2019-05-06 19:39       ` Julien Desfossez
2019-05-08  2:30         ` Aaron Lu
2019-05-08 17:49           ` Julien Desfossez
2019-05-09  2:11             ` Aaron Lu
2019-05-15 21:36               ` Vineeth Remanan Pillai
2019-04-23 23:25 ` Aubrey Li
2019-04-24 11:19   ` Vineeth Remanan Pillai
2019-05-15 21:39     ` Vineeth Remanan Pillai
2019-04-24 13:13 ` Aubrey Li
2019-04-24 14:00   ` Julien Desfossez
2019-04-25  3:15     ` Aubrey Li
2019-04-25  9:55       ` Ingo Molnar
2019-04-25 14:46         ` Mel Gorman
2019-04-25 18:53           ` Ingo Molnar
2019-04-25 18:59             ` Thomas Gleixner
2019-04-25 19:34               ` Ingo Molnar
2019-04-25 21:31             ` Mel Gorman
2019-04-26  8:42               ` Ingo Molnar
2019-04-26 10:43                 ` Mel Gorman
2019-04-26 18:37                   ` Subhra Mazumdar
2019-04-26 19:49                     ` Mel Gorman
2019-04-26  9:45               ` Ingo Molnar
2019-04-26 10:19                 ` Mel Gorman
2019-04-27  9:06                   ` Ingo Molnar
2019-04-26  9:51               ` Ingo Molnar
2019-04-26 14:15             ` Phil Auld
2019-04-26  2:18         ` Aubrey Li
2019-04-26  9:51           ` Ingo Molnar
2019-04-27  3:51         ` Aubrey Li
2019-04-27  9:17           ` Ingo Molnar
2019-04-27 14:04             ` Aubrey Li
2019-04-27 14:21               ` Ingo Molnar
2019-04-27 15:54                 ` Aubrey Li [this message]
2019-04-28  9:33                   ` Ingo Molnar
2019-04-28 10:29                     ` Aubrey Li
2019-04-28 12:17                       ` Ingo Molnar
2019-04-29  2:17                         ` Li, Aubrey
2019-04-29  6:14                           ` Ingo Molnar
2019-04-29 13:25                             ` Li, Aubrey
2019-04-29 15:39                               ` Phil Auld
2019-04-30  1:24                                 ` Aubrey Li
2019-04-29 16:00                               ` Ingo Molnar
2019-04-30  1:34                                 ` Aubrey Li
2019-04-30  4:42                                   ` Ingo Molnar
2019-05-18  0:58                                     ` Li, Aubrey
2019-05-18  1:08                                       ` Li, Aubrey
2019-04-25 14:36 ` Julien Desfossez

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