From: george anzinger <george@mvista.com>
To: Roger Larsson <roger.larsson@skelleftea.mail.telia.com>
Cc: mingo@elte.hu, "Dieter Nützel" <Dieter.Nuetzel@hamburg.de>,
"Linux Kernel List" <linux-kernel@vger.kernel.org>
Subject: Re: [announce] [patch] ultra-scalable O(1) SMP and UP scheduler
Date: Fri, 04 Jan 2002 23:53:54 -0800 [thread overview]
Message-ID: <3C36B112.5A533652@mvista.com> (raw)
In-Reply-To: <Pine.LNX.4.33.0201041238350.2247-100000@localhost.localdomain> <200201050031.g050V7217956@mailf.telia.com>
Roger Larsson wrote:
>
> On Fridayen den 4 January 2002 12.42, Ingo Molnar wrote:
> > On Fri, 4 Jan 2002, Dieter [iso-8859-15] Nützel wrote:
> > > What next? Maybe a combination of O(1) and preempt?
> >
> > yes, fast preemption of kernel-mode tasks and the scheduler code are
> > almost orthogonal. So i agree that to get the best interactive performance
> > we need both.
> >
> > Ingo
> >
> > ps. i'm working on fixing the crashes you saw.
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
>
> Ingo,
>
> The preemtion kernel adds protection to per process data...
> And it is not (yet) updated to handle the O(1) scheduler!
The two patches will are not compatable. When the time comes we will
have to work out how to make them compatable as they both modify key
parts of sched.c.
George
>
> /RogerL
>
> --
> Roger Larsson
> Skellefteå
> Sweden
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
George george@mvista.com
High-res-timers: http://sourceforge.net/projects/high-res-timers/
Real time sched: http://sourceforge.net/projects/rtsched/
next prev parent reply other threads:[~2002-01-05 7:54 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20020104074239.94E016DAA6@mail.elte.hu>
2002-01-04 11:42 ` [announce] [patch] ultra-scalable O(1) SMP and UP scheduler Ingo Molnar
2002-01-04 22:44 ` [patch] O(1) scheduler, 2.4.17-A1, 2.5.2-pre7-A1 Dieter Nützel
2002-01-05 17:12 ` Adrian Bunk
2002-01-05 0:28 ` [announce] [patch] ultra-scalable O(1) SMP and UP scheduler Roger Larsson
2002-01-05 7:53 ` george anzinger [this message]
2002-01-05 16:54 ` Robert Love
2002-01-05 12:42 ` Ingo Molnar
[not found] <20020107.191742.730580837.rene.rebe@gmx.net>
[not found] ` <Pine.LNX.4.33.0201072124380.14212-100000@localhost.localdomain>
2002-01-07 19:53 ` Rene Rebe
2002-01-07 17:34 Rene Rebe
-- strict thread matches above, loose matches on Subject: below --
2002-01-04 11:16 rwhron
2002-01-04 13:20 ` Ingo Molnar
2002-01-04 7:42 Dieter Nützel
2002-01-04 8:02 ` David Lang
2002-01-04 11:44 ` Ingo Molnar
2002-01-04 11:33 ` David Lang
2002-01-04 13:39 ` Andrea Arcangeli
2002-01-04 14:04 ` Ingo Molnar
2002-01-04 13:36 ` Andrea Arcangeli
2002-01-04 15:44 ` Ingo Molnar
2002-01-04 14:45 ` Andrea Arcangeli
2002-01-04 3:56 Ed Tomlinson
2002-01-04 2:19 Ingo Molnar
2002-01-04 4:27 ` Oliver Xymoron
2002-01-04 5:34 ` Ian Morgan
2002-01-04 10:30 ` Anton Blanchard
2002-01-04 12:53 ` Ingo Molnar
2002-01-04 14:18 ` Thomas Cataldo
2002-01-04 14:46 ` dan kelley
2002-01-04 17:07 ` Ingo Molnar
2002-01-04 15:22 ` Nikita Danilov
2002-01-05 4:33 ` Davide Libenzi
2002-01-05 20:24 ` Ingo Molnar
2002-01-05 19:49 ` Mika Liljeberg
2002-01-05 22:00 ` Ingo Molnar
2002-01-05 21:04 ` Mika Liljeberg
2002-01-05 23:04 ` Davide Libenzi
2002-01-05 23:41 ` Alan Cox
2002-01-05 23:46 ` Davide Libenzi
2002-01-06 0:47 ` Linus Torvalds
2002-01-06 2:57 ` Ingo Molnar
2002-01-06 1:27 ` Linus Torvalds
2002-01-06 1:45 ` Davide Libenzi
2002-01-06 3:55 ` Ingo Molnar
2002-01-06 2:16 ` Davide Libenzi
2002-01-06 3:41 ` Ingo Molnar
2002-01-06 2:02 ` Davide Libenzi
2002-01-06 2:13 ` Alan Cox
2002-01-06 2:12 ` Davide Libenzi
2002-01-06 2:20 ` Alan Cox
2002-01-06 2:17 ` Davide Libenzi
2002-01-06 4:07 ` Ingo Molnar
2002-01-06 2:23 ` Davide Libenzi
2002-01-06 2:30 ` Alan Cox
2002-01-06 4:19 ` Ingo Molnar
2002-01-07 3:08 ` Richard Henderson
2002-01-07 3:16 ` Linus Torvalds
2002-01-07 3:31 ` Davide Libenzi
2002-01-07 3:34 ` Linus Torvalds
2002-01-07 3:49 ` Davide Libenzi
2002-01-06 4:01 ` Ingo Molnar
2002-01-06 4:08 ` Ingo Molnar
2002-01-06 4:16 ` Ingo Molnar
2002-01-06 3:55 ` Luc Van Oostenryck
2002-01-07 8:00 ` Jens Axboe
2002-01-06 2:49 ` Ingo Molnar
2002-01-07 2:58 ` Rusty Russell
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