Re: [patch] CFS scheduler, -v18

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From: Vegard Nossum

Subject: Re: [patch] CFS scheduler, -v18

Date: Tuesday, July 3, 2007 - 2:11 am

On 7/3/07, Ingo Molnar <mingo@elte.hu> wrote:
quoted text> does it still get more CPU time than you'd expect it to get? A reniced
> or SCHED_IDLE task will 'fill in' any idle time that it senses, so in
> itself it's not an anomaly if a task gets 50% and FEH fills in the
> remaining 50%. Does it still get CPU time if you start two CPU hogs:
>
>    for (( N=0; N < 2; N++ )); do ( while :; do :; done ) & done
>
> ? If yes, that would be an anomaly.

No, with this test, it gets the expected amount of CPU. Thanks for
clearing it up!

Vegard
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Messages in current thread:

[patch] CFS scheduler, -v18, Ingo Molnar, (Fri Jun 22, 3:02 pm)

Re: [patch] CFS scheduler, -v18, S.Çağlar, (Fri Jun 22, 3:09 pm)

Re: [patch] CFS scheduler, -v18, S.Çağlar, (Fri Jun 22, 3:16 pm)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Fri Jun 22, 3:20 pm)

Re: [patch] CFS scheduler, -v18, Gene Heskett, (Fri Jun 22, 4:08 pm)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Sat Jun 23, 12:11 am)

Re: [patch] CFS scheduler, -v18, Gene Heskett, (Sat Jun 23, 2:55 am)

Re: [patch] CFS scheduler, -v18, Antonino Ingargiola, (Sat Jun 23, 3:22 am)

Re: [patch] CFS scheduler, -v18, Willy Tarreau, (Sat Jun 23, 6:24 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Sat Jun 23, 10:25 am)

Re: [patch] CFS scheduler, -v18, Antonino Ingargiola, (Sun Jun 24, 3:02 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Sun Jun 24, 4:07 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Sun Jun 24, 8:52 am)

Re: [patch] CFS scheduler, -v18, Willy Tarreau, (Sun Jun 24, 10:08 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Sun Jun 24, 1:31 pm)

Re: [patch] CFS scheduler, -v18, Antonino Ingargiola, (Mon Jun 25, 12:27 am)

Re: [patch] CFS scheduler, -v18, Andrew Morton, (Mon Jun 25, 8:02 pm)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Tue Jun 26, 1:38 am)

Re: [patch] CFS scheduler, -v18, Andrew Morton, (Tue Jun 26, 2:00 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Tue Jun 26, 2:38 am)

RE: [patch] CFS scheduler, -v18, Fortier,Vincent [Mon ..., (Tue Jun 26, 1:17 pm)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Wed Jun 27, 3:51 am)

Re: [patch] CFS scheduler, -v18, Willy Tarreau, (Sat Jun 30, 2:06 pm)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Sun Jul 1, 1:31 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Sun Jul 1, 1:45 am)

Re: [patch] CFS scheduler, -v18, Willy Tarreau, (Sun Jul 1, 2:00 am)

Re: [patch] CFS scheduler, -v18, Vegard Nossum, (Mon Jul 2, 4:44 am)

Re: [patch] CFS scheduler, -v18, Dmitry Adamushko, (Mon Jul 2, 6:01 am)

Re: [patch] CFS scheduler, -v18, Vegard Nossum, (Mon Jul 2, 6:43 am)

Re: [patch] CFS scheduler, -v18, Bill Davidsen, (Mon Jul 2, 7:13 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Mon Jul 2, 8:50 am)

Re: [patch] CFS scheduler, -v18, Vegard Nossum, (Mon Jul 2, 9:40 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Mon Jul 2, 11:13 am)

Re: [patch] CFS scheduler, -v18, Vegard Nossum, (Tue Jul 3, 12:01 am)

Re: [patch] CFS scheduler, -v18, Mike Galbraith, (Tue Jul 3, 12:12 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Tue Jul 3, 12:15 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Tue Jul 3, 12:22 am)

Re: [patch] CFS scheduler, -v18, Keith Packard, (Tue Jul 3, 1:08 am)

Re: [patch] CFS scheduler, -v18, Ingo Molnar, (Tue Jul 3, 1:31 am)

Re: [patch] CFS scheduler, -v18, Vegard Nossum, (Tue Jul 3, 2:11 am)

Re: [patch] CFS scheduler, -v18, Andi Kleen, (Wed Jul 4, 5:11 am)


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