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Re: RFC: documentation of the autogroup feature [v2]

From "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
Newsgroups linux.kernel
Subject Re: RFC: documentation of the autogroup feature [v2]
Date 2016-11-25 14:10 +0100
Message-ID <sHoqm-YR-61@gated-at.bofh.it> (permalink)
References (3 earlier) <sGHOq-6Ev-33@gated-at.bofh.it> <sGIhs-71P-35@gated-at.bofh.it> <sGJnb-7Id-17@gated-at.bofh.it> <sHa41-8qT-7@gated-at.bofh.it> <sHogG-FW-21@gated-at.bofh.it>
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On 11/25/2016 01:52 PM, Afzal Mohammed wrote:
> 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

Thanks, Afzal. Fixed!

Cheers,

Michael

> 
>>        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.
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/

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RFC: documentation of the autogroup feature "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-22 17:20 +0100
  [patch] sched/autogroup: Fix 64bit kernel nice adjustment Mike Galbraith <efault@gmx.de> - 2016-11-23 11:40 +0100
    Re: [patch] sched/autogroup: Fix 64bit kernel nice adjustment "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-23 14:50 +0100
      Re: [patch] sched/autogroup: Fix 64bit kernel nice adjustment Mike Galbraith <efault@gmx.de> - 2016-11-23 15:20 +0100
        Re: [patch] sched/autogroup: Fix 64bit kernel nice adjustment "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-23 15:30 +0100
          Re: [patch] sched/autogroup: Fix 64bit kernel nice adjustment Mike Galbraith <efault@gmx.de> - 2016-11-23 17:00 +0100
    [tip:sched/urgent] sched/autogroup: Fix 64-bit kernel nice level  adjustment tip-bot for Mike Galbraith <tipbot@zytor.com> - 2016-11-24 07:30 +0100
  Re: RFC: documentation of the autogroup feature Mike Galbraith <efault@gmx.de> - 2016-11-23 12:50 +0100
    Re: RFC: documentation of the autogroup feature "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-23 15:00 +0100
      Re: RFC: documentation of the autogroup feature Mike Galbraith <efault@gmx.de> - 2016-11-23 16:40 +0100
        Re: RFC: documentation of the autogroup feature "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-23 17:10 +0100
          Re: RFC: documentation of the autogroup feature Mike Galbraith <efault@gmx.de> - 2016-11-23 18:20 +0100
            Re: RFC: documentation of the autogroup feature "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-23 23:50 +0100
        Re: RFC: documentation of the autogroup feature "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-23 17:10 +0100
          Re: RFC: documentation of the autogroup feature Mike Galbraith <efault@gmx.de> - 2016-11-23 18:20 +0100
            RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-24 22:50 +0100
              Re: RFC: documentation of the autogroup feature [v2] Afzal Mohammed <afzal.mohd.ma@gmail.com> - 2016-11-25 14:00 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-25 14:10 +0100
              Re: RFC: documentation of the autogroup feature [v2] Mike Galbraith <efault@gmx.de> - 2016-11-25 14:30 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-25 16:30 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-25 16:50 +0100
                Re: RFC: documentation of the autogroup feature [v2] Mike Galbraith <efault@gmx.de> - 2016-11-25 17:00 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-25 17:20 +0100
                Re: RFC: documentation of the autogroup feature [v2] Peter Zijlstra <peterz@infradead.org> - 2016-11-25 17:20 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-25 17:40 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-25 22:00 +0100
                Re: RFC: documentation of the autogroup feature [v2] Peter Zijlstra <peterz@infradead.org> - 2016-11-25 22:50 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-29 08:50 +0100
                Re: RFC: documentation of the autogroup feature [v2] Peter Zijlstra <peterz@infradead.org> - 2016-11-29 12:50 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-29 14:50 +0100
                Re: RFC: documentation of the autogroup feature [v2] Peter Zijlstra <peterz@infradead.org> - 2016-11-25 17:10 +0100
                Re: RFC: documentation of the autogroup feature [v2] Peter Zijlstra <peterz@infradead.org> - 2016-11-25 17:20 +0100
                Re: RFC: documentation of the autogroup feature [v2] "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-25 17:40 +0100
                Re: RFC: documentation of the autogroup feature [v2] Peter Zijlstra <peterz@infradead.org> - 2016-11-25 23:50 +0100
        Re: RFC: documentation of the autogroup feature "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-27 22:20 +0100
          Re: RFC: documentation of the autogroup feature Mike Galbraith <efault@gmx.de> - 2016-11-28 02:50 +0100
            Re: RFC: documentation of the autogroup feature "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-11-29 10:20 +0100
              Re: RFC: documentation of the autogroup feature Mike Galbraith <efault@gmx.de> - 2016-11-29 14:50 +0100

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