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From: Afzal Mohammed <afzal.mohd.ma@gmail.com>
To: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>,
	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 [v2]
Date: Fri, 25 Nov 2016 18:22:46 +0530	[thread overview]
Message-ID: <20161125125246.GA7600@afzalpc> (raw)
In-Reply-To: <c5a9acd3-6b60-192c-312e-2777f2d537c2@gmail.com>

Hi,

On Thu, Nov 24, 2016 at 10:41:29PM +0100, Michael Kerrisk (man-pages) wrote:

>        Suppose  that  there  are two autogroups competing for the same
>        CPU.  The first group contains ten CPU-bound processes  from  a
>        kernel build started with make -j10.  The other contains a sin‐
>        gle CPU-bound process: a video player.   The  effect  of  auto‐
>        grouping  is  that the two groups will each receive half of the
>        CPU cycles.  That is, the video player will receive 50% of  the
>        CPU  cycles,  rather  just 9% of the cycles, which would likely
                            ^^^^
                            than ?

Regards
afzal

>        lead to degraded video playback.  Or to put things another way:
>        an  autogroup  that  contains  a large number of CPU-bound pro‐
>        cesses does not end up overwhelming the CPU at the  expense  of
>        the other jobs on the system.

  reply	other threads:[~2016-11-25 12:52 UTC|newest]

Thread overview: 38+ 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)
     [not found]       ` <d21cf0b2-5c62-5a49-8758-58793c454cc2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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
2016-11-24  6:24     ` [tip:sched/urgent] sched/autogroup: Fix 64-bit kernel nice level adjustment 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)
     [not found]       ` <327586fa-4672-d070-0ded-850654586273-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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 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 [this message]
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 15:04                       ` 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 16:04                           ` Peter Zijlstra
     [not found]                             ` <20161125160456.GP3092-ndre7Fmf5hadTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2016-11-25 16:13                               ` Peter Zijlstra
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 15:51                         ` Mike Galbraith
     [not found]                           ` <1480089063.4075.80.camel-Mmb7MZpHnFY@public.gmane.org>
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
     [not found]                                   ` <20161125161810.GR3092-ndre7Fmf5hadTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
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)
     [not found]                                           ` <af075c46-152a-0392-d33f-c7956d3c8a0b-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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)
     [not found]                                                   ` <755aba1b-9bf4-0277-0628-b27e725ee2f9-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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)
2016-11-23 16:05             ` RFC: documentation of the autogroup feature Michael Kerrisk (man-pages)
     [not found]               ` <fc3ae5c6-5a50-e991-71fd-b544096bbe5c-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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)
2016-11-27 21:13             ` Michael Kerrisk (man-pages)
     [not found]               ` <8614679c-b1d3-3b35-193d-2ab6eac45aff-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-11-28  1:46                 ` Mike Galbraith
     [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)
     [not found]                         ` <CAKgNAkiLafr7KJNAo+_kwKQB7ueO-oontNL_FQrGtqitmJpEDg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-11-29 13:46                           ` Mike Galbraith

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