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From: Vineeth Remanan Pillai <vpillai@digitalocean.com>
To: Joel Fernandes <joel@joelfernandes.org>
Cc: "Peter Zijlstra" <peterz@infradead.org>,
	"Nishanth Aravamudan" <naravamudan@digitalocean.com>,
	"Julien Desfossez" <jdesfossez@digitalocean.com>,
	"Tim Chen" <tim.c.chen@linux.intel.com>,
	"Ingo Molnar" <mingo@kernel.org>,
	"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>,
	"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>,
	"Aubrey Li" <aubrey.intel@gmail.com>,
	"Li, Aubrey" <aubrey.li@linux.intel.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: [PATCH RFC] sched: Add a per-thread core scheduling interface
Date: Thu, 21 May 2020 16:20:10 -0400	[thread overview]
Message-ID: <CANaguZCy018R=XPETT4GRBjuUYx-xbxncnYG9Z5LfGmBYHG2=w@mail.gmail.com> (raw)
In-Reply-To: <20200521134705.GA140701@google.com>

On Thu, May 21, 2020 at 9:47 AM Joel Fernandes <joel@joelfernandes.org> wrote:
>
> > It doens't allow tasks for form their own groups (by for example setting
> > the key to that of another task).
>
> So for this, I was thinking of making the prctl pass in an integer. And 0
> would mean untagged. Does that sound good to you?
>
On a similar note, me and Joel were discussing about prctl and it came up
that, there is no mechanism to set cookie from outside a process using
prctl(2). So, another option we could consider is to use sched_setattr(2)
and expand sched_attr to accomodate a u64 cookie. User could pass in a
cookie to explicitly set it and also use the same cookie for grouping.

Haven't prototyped it yet. Will need to dig deeper and see how it would
really look like.

Thanks,
Vineeth

  reply	other threads:[~2020-05-21 20:20 UTC|newest]

Thread overview: 110+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-04 16:59 [RFC PATCH 00/13] Core scheduling v5 vpillai
2020-03-04 16:59 ` [RFC PATCH 01/13] sched: Wrap rq::lock access vpillai
2020-03-04 16:59 ` [RFC PATCH 02/13] sched: Introduce sched_class::pick_task() vpillai
2020-03-04 16:59 ` [RFC PATCH 03/13] sched: Core-wide rq->lock vpillai
2020-04-01 11:42   ` [PATCH] sched/arm64: store cpu topology before notify_cpu_starting Cheng Jian
2020-04-01 13:23     ` Valentin Schneider
2020-04-06  8:00       ` chengjian (D)
2020-04-09  9:59       ` Sudeep Holla
2020-04-09 10:32         ` Valentin Schneider
2020-04-09 11:08           ` Sudeep Holla
2020-04-09 17:54     ` Joel Fernandes
2020-04-10 13:49       ` chengjian (D)
2020-04-14 11:36   ` [RFC PATCH 03/13] sched: Core-wide rq->lock Peter Zijlstra
2020-04-14 21:35     ` Vineeth Remanan Pillai
2020-04-15 10:55       ` Peter Zijlstra
2020-04-14 14:32   ` Peter Zijlstra
2020-03-04 16:59 ` [RFC PATCH 04/13] sched/fair: Add a few assertions vpillai
2020-03-04 16:59 ` [RFC PATCH 05/13] sched: Basic tracking of matching tasks vpillai
2020-03-04 16:59 ` [RFC PATCH 06/13] sched: Update core scheduler queue when taking cpu online/offline vpillai
2020-03-04 16:59 ` [RFC PATCH 07/13] sched: Add core wide task selection and scheduling vpillai
2020-04-14 13:35   ` Peter Zijlstra
2020-04-16 23:32     ` Tim Chen
2020-04-17 10:57       ` Peter Zijlstra
2020-04-16  3:39   ` Chen Yu
2020-04-16 19:59     ` Vineeth Remanan Pillai
2020-04-17 11:18     ` Peter Zijlstra
2020-04-19 15:31       ` Chen Yu
2020-05-21 23:14   ` Joel Fernandes
2020-05-21 23:16     ` Joel Fernandes
2020-05-22  2:35     ` Joel Fernandes
2020-05-22  3:44       ` Aaron Lu
2020-05-22 20:13         ` Joel Fernandes
2020-03-04 16:59 ` [RFC PATCH 08/13] sched/fair: wrapper for cfs_rq->min_vruntime vpillai
2020-03-04 16:59 ` [RFC PATCH 09/13] sched/fair: core wide vruntime comparison vpillai
2020-04-14 13:56   ` Peter Zijlstra
2020-04-15  3:34     ` Aaron Lu
2020-04-15  4:07       ` Aaron Lu
2020-04-15 21:24         ` Vineeth Remanan Pillai
2020-04-17  9:40           ` Aaron Lu
2020-04-20  8:07             ` [PATCH updated] sched/fair: core wide cfs task priority comparison Aaron Lu
2020-04-20 22:26               ` Vineeth Remanan Pillai
2020-04-21  2:51                 ` Aaron Lu
2020-04-24 14:24                   ` [PATCH updated v2] " Aaron Lu
2020-05-06 14:35                     ` Peter Zijlstra
2020-05-08  8:44                       ` Aaron Lu
2020-05-08  9:09                         ` Peter Zijlstra
2020-05-08 12:34                           ` Aaron Lu
2020-05-14 13:02                             ` Peter Zijlstra
2020-05-14 22:51                               ` Vineeth Remanan Pillai
2020-05-15 10:38                                 ` Peter Zijlstra
2020-05-15 10:43                                   ` Peter Zijlstra
2020-05-15 14:24                                   ` Vineeth Remanan Pillai
2020-05-16  3:42                               ` Aaron Lu
2020-05-22  9:40                                 ` Aaron Lu
2020-06-08  1:41                               ` Ning, Hongyu
2020-03-04 17:00 ` [RFC PATCH 10/13] sched: Trivial forced-newidle balancer vpillai
2020-03-04 17:00 ` [RFC PATCH 11/13] sched: migration changes for core scheduling vpillai
2020-06-12 13:21   ` Joel Fernandes
2020-06-12 21:32     ` Vineeth Remanan Pillai
2020-06-13  2:25       ` Joel Fernandes
2020-06-13 18:59         ` Vineeth Remanan Pillai
2020-06-15  2:05           ` Li, Aubrey
2020-03-04 17:00 ` [RFC PATCH 12/13] sched: cgroup tagging interface " vpillai
2020-06-26 15:06   ` Vineeth Remanan Pillai
2020-03-04 17:00 ` [RFC PATCH 13/13] sched: Debug bits vpillai
2020-03-04 17:36 ` [RFC PATCH 00/13] Core scheduling v5 Tim Chen
2020-03-04 17:42   ` Vineeth Remanan Pillai
2020-04-14 14:21 ` Peter Zijlstra
2020-04-15 16:32   ` Joel Fernandes
2020-04-17 11:12     ` Peter Zijlstra
2020-04-17 12:35       ` Alexander Graf
2020-04-17 13:08         ` Peter Zijlstra
2020-04-18  2:25       ` Joel Fernandes
2020-05-09 14:35   ` Dario Faggioli
     [not found] ` <38805656-2e2f-222a-c083-692f4b113313@linux.intel.com>
2020-05-09  3:39   ` Ning, Hongyu
2020-05-14 20:51     ` FW: " Gruza, Agata
2020-05-10 23:46 ` [PATCH RFC] Add support for core-wide protection of IRQ and softirq Joel Fernandes (Google)
2020-05-11 13:49   ` Peter Zijlstra
2020-05-11 14:54     ` Joel Fernandes
2020-05-20 22:26 ` [PATCH RFC] sched: Add a per-thread core scheduling interface Joel Fernandes (Google)
2020-05-21  4:09   ` [PATCH RFC] sched: Add a per-thread core scheduling interface(Internet mail) benbjiang(蒋彪)
2020-05-21 13:49     ` Joel Fernandes
2020-05-21  8:51   ` [PATCH RFC] sched: Add a per-thread core scheduling interface Peter Zijlstra
2020-05-21 13:47     ` Joel Fernandes
2020-05-21 20:20       ` Vineeth Remanan Pillai [this message]
2020-05-22 12:59       ` Peter Zijlstra
2020-05-22 21:35         ` Joel Fernandes
2020-05-24 14:00           ` Phil Auld
2020-05-28 14:51             ` Joel Fernandes
2020-05-28 17:01             ` Peter Zijlstra
2020-05-28 18:17               ` Phil Auld
2020-05-28 18:34                 ` Phil Auld
2020-05-28 18:23               ` Joel Fernandes
2020-05-21 18:31   ` Linus Torvalds
2020-05-21 20:40     ` Joel Fernandes
2020-05-21 21:58       ` Jesse Barnes
2020-05-22 16:33         ` Linus Torvalds
2020-05-20 22:37 ` [PATCH RFC v2] Add support for core-wide protection of IRQ and softirq Joel Fernandes (Google)
2020-05-20 22:48 ` [PATCH RFC] sched: Use sched-RCU in core-scheduling balancing logic Joel Fernandes (Google)
2020-05-21 22:52   ` Paul E. McKenney
2020-05-22  1:26     ` Joel Fernandes
2020-06-25 20:12 ` [RFC PATCH 00/13] Core scheduling v5 Vineeth Remanan Pillai
2020-06-26  1:47   ` Joel Fernandes
2020-06-26 14:36     ` Vineeth Remanan Pillai
2020-06-26 15:10       ` Joel Fernandes
2020-06-26 15:12         ` Joel Fernandes
2020-06-27 16:21         ` Joel Fernandes
2020-06-30 14:11         ` Phil Auld
2020-06-29 12:33   ` Li, Aubrey
2020-06-29 19:41     ` Vineeth Remanan Pillai

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