From: Mike Galbraith <efault-Mmb7MZpHnFY@public.gmane.org>
To: "Michael Kerrisk (man-pages)"
<mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Peter Zijlstra
<a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>,
Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-man <linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
lkml <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
Subject: Re: RFC: documentation of the autogroup feature
Date: Mon, 28 Nov 2016 02:46:14 +0100 [thread overview]
Message-ID: <1480297574.9163.76.camel@gmx.de> (raw)
In-Reply-To: <8614679c-b1d3-3b35-193d-2ab6eac45aff-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
On Sun, 2016-11-27 at 22:13 +0100, Michael Kerrisk (man-pages) wrote:
> Here's my attempt to define the root task group:
>
> * If autogrouping is disabled, then all processes in the root CPU
> cgroup form a scheduling group (sometimes called the "root task
> group").
>
> Can you improve on this?
A task group is a set of percpu runqueues. The root task group is the
top level set in a hierarchy of such sets when group scheduling is
enabled, or the only set when group scheduling is not enabled. The
autogroup hierarchy has a depth of one, ie all autogroups are peers
who's common parent is the root task group.
-Mike
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WARNING: multiple messages have this Message-ID (diff)
From: Mike Galbraith <efault@gmx.de>
To: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@kernel.org>,
linux-man <linux-man@vger.kernel.org>,
lkml <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: RFC: documentation of the autogroup feature
Date: Mon, 28 Nov 2016 02:46:14 +0100 [thread overview]
Message-ID: <1480297574.9163.76.camel@gmx.de> (raw)
In-Reply-To: <8614679c-b1d3-3b35-193d-2ab6eac45aff@gmail.com>
On Sun, 2016-11-27 at 22:13 +0100, Michael Kerrisk (man-pages) wrote:
> Here's my attempt to define the root task group:
>
> * If autogrouping is disabled, then all processes in the root CPU
> cgroup form a scheduling group (sometimes called the "root task
> group").
>
> Can you improve on this?
A task group is a set of percpu runqueues. The root task group is the
top level set in a hierarchy of such sets when group scheduling is
enabled, or the only set when group scheduling is not enabled. The
autogroup hierarchy has a depth of one, ie all autogroups are peers
who's common parent is the root task group.
-Mike
next prev parent reply other threads:[~2016-11-28 1:46 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-22 15:59 RFC: documentation of the autogroup feature Michael Kerrisk (man-pages)
2016-11-23 10:33 ` [patch] sched/autogroup: Fix 64bit kernel nice adjustment Mike Galbraith
[not found] ` <1479897217.4306.6.camel-Mmb7MZpHnFY@public.gmane.org>
2016-11-23 13:47 ` Michael Kerrisk (man-pages)
2016-11-23 13:47 ` Michael Kerrisk (man-pages)
[not found] ` <d21cf0b2-5c62-5a49-8758-58793c454cc2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-23 14:12 ` Mike Galbraith
2016-11-23 14:12 ` Mike Galbraith
2016-11-23 14:20 ` Michael Kerrisk (man-pages)
[not found] ` <34cea28b-c8c7-31e3-e920-90f113d22abe-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-23 15:55 ` Mike Galbraith
2016-11-23 15:55 ` Mike Galbraith
2016-11-24 6:24 ` [tip:sched/urgent] sched/autogroup: Fix 64-bit kernel nice level adjustment tip-bot for Mike Galbraith
2016-11-24 6:24 ` tip-bot for Mike Galbraith
2016-11-23 11:39 ` RFC: documentation of the autogroup feature Mike Galbraith
[not found] ` <1479901185.4306.38.camel-Mmb7MZpHnFY@public.gmane.org>
2016-11-23 13:54 ` Michael Kerrisk (man-pages)
2016-11-23 13:54 ` Michael Kerrisk (man-pages)
[not found] ` <327586fa-4672-d070-0ded-850654586273-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-23 15:33 ` Mike Galbraith
2016-11-23 15:33 ` Mike Galbraith
[not found] ` <1479915229.4306.106.camel-Mmb7MZpHnFY@public.gmane.org>
2016-11-23 16:04 ` Michael Kerrisk (man-pages)
2016-11-23 16:04 ` Michael Kerrisk (man-pages)
2016-11-23 17:11 ` Mike Galbraith
2016-11-24 21:41 ` RFC: documentation of the autogroup feature [v2] Michael Kerrisk (man-pages)
2016-11-25 12:52 ` Afzal Mohammed
2016-11-25 13:04 ` Michael Kerrisk (man-pages)
2016-11-25 13:04 ` Michael Kerrisk (man-pages)
[not found] ` <c5a9acd3-6b60-192c-312e-2777f2d537c2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-25 13:02 ` Mike Galbraith
2016-11-25 13:02 ` Mike Galbraith
2016-11-25 15:04 ` Michael Kerrisk (man-pages)
2016-11-25 15:51 ` Mike Galbraith
[not found] ` <1480089063.4075.80.camel-Mmb7MZpHnFY@public.gmane.org>
2016-11-25 16:08 ` Michael Kerrisk (man-pages)
2016-11-25 16:08 ` Michael Kerrisk (man-pages)
[not found] ` <d3d491d3-0770-d017-4f3c-43d88346835c-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-25 16:18 ` Peter Zijlstra
2016-11-25 16:18 ` Peter Zijlstra
[not found] ` <20161125161810.GR3092-ndre7Fmf5hadTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2016-11-25 16:34 ` Michael Kerrisk (man-pages)
2016-11-25 16:34 ` Michael Kerrisk (man-pages)
[not found] ` <2cc53b76-668b-edf1-6aa7-e6cb5a9801e1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-25 20:54 ` Michael Kerrisk (man-pages)
2016-11-25 20:54 ` Michael Kerrisk (man-pages)
[not found] ` <af075c46-152a-0392-d33f-c7956d3c8a0b-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-25 21:49 ` Peter Zijlstra
2016-11-25 21:49 ` Peter Zijlstra
[not found] ` <20161125214936.GB3045-IIpfhp3q70z/8w/KjCw3T+5/BudmfyzbbVWyRVo5IupeoWH0uzbU5w@public.gmane.org>
2016-11-29 7:43 ` Michael Kerrisk (man-pages)
2016-11-29 7:43 ` Michael Kerrisk (man-pages)
[not found] ` <755aba1b-9bf4-0277-0628-b27e725ee2f9-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-29 11:46 ` Peter Zijlstra
2016-11-29 11:46 ` Peter Zijlstra
[not found] ` <20161129114629.GG3092-ndre7Fmf5hadTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2016-11-29 13:44 ` Michael Kerrisk (man-pages)
2016-11-29 13:44 ` Michael Kerrisk (man-pages)
[not found] ` <ca16c155-22be-df06-4f2d-4337b72381de-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-25 15:48 ` Michael Kerrisk (man-pages)
2016-11-25 15:48 ` Michael Kerrisk (man-pages)
2016-11-25 16:04 ` Peter Zijlstra
2016-11-25 16:04 ` Peter Zijlstra
[not found] ` <20161125160456.GP3092-ndre7Fmf5hadTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2016-11-25 16:13 ` Peter Zijlstra
2016-11-25 16:13 ` Peter Zijlstra
2016-11-25 16:33 ` Michael Kerrisk (man-pages)
2016-11-25 16:33 ` Michael Kerrisk (man-pages)
[not found] ` <c0f61369-9601-0c90-8b85-61e75e4f4e82-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-25 22:48 ` Peter Zijlstra
2016-11-25 22:48 ` Peter Zijlstra
2016-11-23 16:05 ` RFC: documentation of the autogroup feature Michael Kerrisk (man-pages)
2016-11-23 16:05 ` Michael Kerrisk (man-pages)
[not found] ` <fc3ae5c6-5a50-e991-71fd-b544096bbe5c-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-23 17:19 ` Mike Galbraith
2016-11-23 17:19 ` Mike Galbraith
[not found] ` <1479921544.4306.157.camel-Mmb7MZpHnFY@public.gmane.org>
2016-11-23 22:12 ` Michael Kerrisk (man-pages)
2016-11-23 22:12 ` Michael Kerrisk (man-pages)
2016-11-27 21:13 ` Michael Kerrisk (man-pages)
2016-11-27 21:13 ` Michael Kerrisk (man-pages)
[not found] ` <8614679c-b1d3-3b35-193d-2ab6eac45aff-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-28 1:46 ` Mike Galbraith [this message]
2016-11-28 1:46 ` Mike Galbraith
[not found] ` <1127218a-dd9b-71a8-845d-3a83969632fc@gmail.com>
[not found] ` <1127218a-dd9b-71a8-845d-3a83969632fc-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-29 9:10 ` Michael Kerrisk (man-pages)
2016-11-29 9:10 ` Michael Kerrisk (man-pages)
[not found] ` <CAKgNAkiLafr7KJNAo+_kwKQB7ueO-oontNL_FQrGtqitmJpEDg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-11-29 13:46 ` Mike Galbraith
2016-11-29 13:46 ` Mike Galbraith
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