From: "Ning, Hongyu" <hongyu.ning@linux.intel.com>
To: Joel Fernandes <joel@joelfernandes.org>,
Nishanth Aravamudan <naravamudan@digitalocean.com>,
Julien Desfossez <jdesfossez@digitalocean.com>,
Peter Zijlstra <peterz@infradead.org>,
Tim Chen <tim.c.chen@linux.intel.com>,
Vineeth Pillai <viremana@linux.microsoft.com>,
Aaron Lu <aaron.lwe@gmail.com>,
Aubrey Li <aubrey.intel@gmail.com>,
tglx@linutronix.de, linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, torvalds@linux-foundation.org,
fweisbec@gmail.com, keescook@chromium.org, kerrnel@google.com,
Phil Auld <pauld@redhat.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>,
vineeth@bitbyteword.org, Chen Yu <yu.c.chen@intel.com>,
Christian Brauner <christian.brauner@ubuntu.com>,
Agata Gruza <agata.gruza@intel.com>,
Antonio Gomez Iglesias <antonio.gomez.iglesias@intel.com>,
graf@amazon.com, konrad.wilk@oracle.com, dfaggioli@suse.com,
pjt@google.com, rostedt@goodmis.org, derkling@google.com,
benbjiang@tencent.com,
Alexandre Chartre <alexandre.chartre@oracle.com>,
James.Bottomley@hansenpartnership.com, OWeisse@umich.edu,
Dhaval Giani <dhaval.giani@oracle.com>,
Junaid Shahid <junaids@google.com>,
jsbarnes@google.com, chris.hyser@oracle.com,
Aubrey Li <aubrey.li@linux.intel.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Tim Chen <tim.c.chen@intel.com>
Subject: Re: [RFT for v9] (Was Re: [PATCH v8 -tip 00/26] Core scheduling)
Date: Fri, 13 Nov 2020 18:01:39 +0800 [thread overview]
Message-ID: <04463650-fa84-7e6e-d3f6-5ec34eb44433@linux.intel.com> (raw)
In-Reply-To: <60912adc-81e8-8dc9-98cb-2aefed4e36e6@linux.intel.com>
On 2020/11/13 17:22, Ning, Hongyu wrote:
> On 2020/11/7 4:55, Joel Fernandes wrote:
>> All,
>>
>> I am getting ready to send the next v9 series based on tip/master
>> branch. Could you please give the below tree a try and report any results in
>> your testing?
>> git tree:
>> https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git (branch coresched)
>> git log:
>> https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git/log/?h=coresched
>>
>> The major changes in this series are the improvements:
>> (1)
>> "sched: Make snapshotting of min_vruntime more CGroup-friendly"
>> https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git/commit/?h=coresched-v9-for-test&id=9a20a6652b3c50fd51faa829f7947004239a04eb
>>
>> (2)
>> "sched: Simplify the core pick loop for optimized case"
>> https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git/commit/?h=coresched-v9-for-test&id=0370117b4fd418cdaaa6b1489bfc14f305691152
>>
>> And a bug fix:
>> (1)
>> "sched: Enqueue task into core queue only after vruntime is updated"
>> https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git/commit/?h=coresched-v9-for-test&id=401dad5536e7e05d1299d0864e6fc5072029f492
>>
>> There are also 2 more bug fixes that I squashed-in related to kernel
>> protection and a crash seen on the tip/master branch.
>>
>> Hoping to send the series next week out to the list.
>>
>> Have a great weekend, and Thanks!
>>
>> - Joel
>>
>>
>> On Mon, Oct 19, 2020 at 09:43:10PM -0400, Joel Fernandes (Google) wrote:
>
> Adding 4 workloads test results for core scheduling v9 candidate:
>
> - kernel under test:
> -- coresched community v9 candidate from https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git (branch coresched)
> -- latest commit: 2e8591a330ff (HEAD -> coresched, origin/coresched) NEW: sched: Add a coresched command line option
> -- coresched=on kernel parameter applied
> - workloads:
> -- A. sysbench cpu (192 threads) + sysbench cpu (192 threads)
> -- B. sysbench cpu (192 threads) + sysbench mysql (192 threads, mysqld forced into the same cgroup)
> -- C. uperf netperf.xml (192 threads over TCP or UDP protocol separately)
> -- D. will-it-scale context_switch via pipe (192 threads)
> - test machine setup:
> CPU(s): 192
> On-line CPU(s) list: 0-191
> Thread(s) per core: 2
> Core(s) per socket: 48
> Socket(s): 2
> NUMA node(s): 4
> - test results, no obvious performance drop compared to community v8 build:
> -- workload A:
> +----------------------+------+----------------------+------------------------+
> | | ** | sysbench cpu * 192 | sysbench cpu * 192 |
> +======================+======+======================+========================+
> | cgroup | ** | cg_sysbench_cpu_0 | cg_sysbench_cpu_1 |
> +----------------------+------+----------------------+------------------------+
> | record_item | ** | Tput_avg (events/s) | Tput_avg (events/s) |
> +----------------------+------+----------------------+------------------------+
> | coresched_normalized | ** | 0.98 | 1.01 |
> +----------------------+------+----------------------+------------------------+
> | default_normalized | ** | 1 | 1 |
> +----------------------+------+----------------------+------------------------+
> | smtoff_normalized | ** | 0.59 | 0.6 |
> +----------------------+------+----------------------+------------------------+
>
> -- workload B:
> +----------------------+------+----------------------+------------------------+
> | | ** | sysbench cpu * 192 | sysbench mysql * 192 |
> +======================+======+======================+========================+
> | cgroup | ** | cg_sysbench_cpu_0 | cg_sysbench_mysql_0 |
> +----------------------+------+----------------------+------------------------+
> | record_item | ** | Tput_avg (events/s) | Tput_avg (events/s) |
> +----------------------+------+----------------------+------------------------+
> | coresched_normalized | ** | 1.02 | 0.78 |
> +----------------------+------+----------------------+------------------------+
> | default_normalized | ** | 1 | 1 |
> +----------------------+------+----------------------+------------------------+
> | smtoff_normalized | ** | 0.59 | 0.75 |
> +----------------------+------+----------------------+------------------------+
>
> -- workload C:
> +----------------------+------+---------------------------+---------------------------+
> | | ** | uperf netperf TCP * 192 | uperf netperf UDP * 192 |
> +======================+======+===========================+===========================+
> | cgroup | ** | cg_uperf | cg_uperf |
> +----------------------+------+---------------------------+---------------------------+
> | record_item | ** | Tput_avg (Gb/s) | Tput_avg (Gb/s) |
> +----------------------+------+---------------------------+---------------------------+
> | coresched_normalized | ** | 0.65 | 0.67 |
> +----------------------+------+---------------------------+---------------------------+
> | default_normalized | ** | 1 | 1 |
> +----------------------+------+---------------------------+---------------------------+
> | smtoff_normalized | ** | 0.83 | 0.91 |
> +----------------------+------+---------------------------+---------------------------+
>
> -- workload D:
> +----------------------+------+-------------------------------+
> | | ** | will-it-scale * 192 |
> | | | (pipe based context_switch) |
> +======================+======+===============================+
> | cgroup | ** | cg_will-it-scale |
> +----------------------+------+-------------------------------+
> | record_item | ** | threads_avg |
> +----------------------+------+-------------------------------+
> | coresched_normalized | ** | 0.29 |
> +----------------------+------+-------------------------------+
> | default_normalized | ** | 1.00 |
> +----------------------+------+-------------------------------+
> | smtoff_normalized | ** | 0.87 |
> +----------------------+------+-------------------------------+
>
> - notes on test results record_item:
> * coresched_normalized: smton, cs enabled, test result normalized by default value
> * default_normalized: smton, cs disabled, test result normalized by default value
> * smtoff_normalized: smtoff, test result normalized by default value
>
>
> Hongyu
>
Add 2 more negative test case:
- continuously toggle cpu.core_tag, during workload running with cs_on
- continuously toggle smt setting via /sys/devices/system/cpu/smt/control, during workload running with cs_on
no kernel panic or platform hang observed.
prev parent reply other threads:[~2020-11-13 10:01 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-20 1:43 [PATCH v8 -tip 00/26] Core scheduling Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 01/26] sched: Wrap rq::lock access Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 02/26] sched: Introduce sched_class::pick_task() Joel Fernandes (Google)
2020-10-22 7:59 ` Li, Aubrey
2020-10-22 15:25 ` Joel Fernandes
2020-10-23 5:25 ` Li, Aubrey
2020-10-23 21:47 ` Joel Fernandes
2020-10-24 2:48 ` Li, Aubrey
2020-10-24 11:10 ` Vineeth Pillai
2020-10-24 12:27 ` Vineeth Pillai
2020-10-24 23:48 ` Li, Aubrey
2020-10-26 9:01 ` Peter Zijlstra
2020-10-27 3:17 ` Li, Aubrey
2020-10-27 14:19 ` Joel Fernandes
2020-10-27 15:23 ` Joel Fernandes
2020-10-27 14:14 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 03/26] sched: Core-wide rq->lock Joel Fernandes (Google)
2020-10-26 11:59 ` Peter Zijlstra
2020-10-27 16:27 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 04/26] sched/fair: Add a few assertions Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 05/26] sched: Basic tracking of matching tasks Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 06/26] sched: Add core wide task selection and scheduling Joel Fernandes (Google)
2020-10-23 13:51 ` Peter Zijlstra
2020-10-23 13:54 ` Peter Zijlstra
2020-10-23 17:57 ` Joel Fernandes
2020-10-23 19:26 ` Peter Zijlstra
2020-10-23 21:31 ` Joel Fernandes
2020-10-26 8:28 ` Peter Zijlstra
2020-10-27 16:58 ` Joel Fernandes
2020-10-26 9:31 ` Peter Zijlstra
2020-11-05 18:50 ` Joel Fernandes
2020-11-05 22:07 ` Joel Fernandes
2020-10-23 15:05 ` Peter Zijlstra
2020-10-23 17:59 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 07/26] sched/fair: Fix forced idle sibling starvation corner case Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 08/26] sched/fair: Snapshot the min_vruntime of CPUs on force idle Joel Fernandes (Google)
2020-10-26 12:47 ` Peter Zijlstra
2020-10-28 15:29 ` Joel Fernandes
2020-10-28 18:39 ` Joel Fernandes
2020-10-29 16:59 ` Joel Fernandes
2020-10-29 18:24 ` Joel Fernandes
2020-10-29 18:59 ` Peter Zijlstra
2020-10-30 2:36 ` Joel Fernandes
2020-10-30 2:42 ` Joel Fernandes
2020-10-30 8:41 ` Peter Zijlstra
2020-10-31 21:41 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 09/26] sched: Trivial forced-newidle balancer Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 10/26] sched: migration changes for core scheduling Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 11/26] irq_work: Cleanup Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 12/26] arch/x86: Add a new TIF flag for untrusted tasks Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 13/26] kernel/entry: Add support for core-wide protection of kernel-mode Joel Fernandes (Google)
2020-10-20 3:41 ` Randy Dunlap
2020-11-03 0:20 ` Joel Fernandes
2020-10-22 5:48 ` Li, Aubrey
2020-11-03 0:50 ` Joel Fernandes
2020-10-30 10:29 ` Alexandre Chartre
2020-11-03 1:20 ` Joel Fernandes
2020-11-06 16:57 ` Alexandre Chartre
2020-11-06 17:43 ` Joel Fernandes
2020-11-06 18:07 ` Alexandre Chartre
2020-11-10 9:35 ` Alexandre Chartre
2020-11-10 22:42 ` Joel Fernandes
2020-11-16 10:08 ` Alexandre Chartre
2020-11-16 14:50 ` Joel Fernandes
2020-11-16 15:43 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 14/26] entry/idle: Enter and exit kernel protection during idle entry and exit Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 15/26] entry/kvm: Protect the kernel when entering from guest Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 16/26] sched: cgroup tagging interface for core scheduling Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 17/26] sched: Split the cookie and setup per-task cookie on fork Joel Fernandes (Google)
2020-11-04 22:30 ` chris hyser
2020-11-05 14:49 ` Joel Fernandes
2020-11-09 23:30 ` chris hyser
2020-10-20 1:43 ` [PATCH v8 -tip 18/26] sched: Add a per-thread core scheduling interface Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 19/26] sched: Add a second-level tag for nested CGroup usecase Joel Fernandes (Google)
2020-10-31 0:42 ` Josh Don
2020-11-03 2:54 ` Joel Fernandes
[not found] ` <6c07e70d-52f2-69ff-e1fa-690cd2c97f3d@linux.intel.com>
2020-11-05 15:52 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 20/26] sched: Release references to the per-task cookie on exit Joel Fernandes (Google)
2020-11-04 21:50 ` chris hyser
2020-11-05 15:46 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 21/26] sched: Handle task addition to CGroup Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 22/26] sched/debug: Add CGroup node for printing group cookie if SCHED_DEBUG Joel Fernandes (Google)
2020-10-20 1:43 ` [PATCH v8 -tip 23/26] kselftest: Add tests for core-sched interface Joel Fernandes (Google)
2020-10-30 22:20 ` [PATCH] sched: Change all 4 space tabs to actual tabs John B. Wyatt IV
2020-10-20 1:43 ` [PATCH v8 -tip 24/26] sched: Move core-scheduler interfacing code to a new file Joel Fernandes (Google)
2020-10-26 1:05 ` Li, Aubrey
2020-11-03 2:58 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 25/26] Documentation: Add core scheduling documentation Joel Fernandes (Google)
2020-10-20 3:36 ` Randy Dunlap
2020-11-12 16:11 ` Joel Fernandes
2020-10-20 1:43 ` [PATCH v8 -tip 26/26] sched: Debug bits Joel Fernandes (Google)
2020-10-30 13:26 ` [PATCH v8 -tip 00/26] Core scheduling Ning, Hongyu
2020-11-06 2:58 ` Li, Aubrey
2020-11-06 17:54 ` Joel Fernandes
2020-11-09 6:04 ` Li, Aubrey
2020-11-06 20:55 ` [RFT for v9] (Was Re: [PATCH v8 -tip 00/26] Core scheduling) Joel Fernandes
2020-11-13 9:22 ` Ning, Hongyu
2020-11-13 10:01 ` Ning, Hongyu [this message]
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