From: Thomas Gleixner <tglx@linutronix.de>
To: Kasper Sandberg <lkml@metanurb.dk>
Cc: Willy Tarreau <w@1wt.eu>, Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Gene Heskett <gene.heskett@gmail.com>,
linux-kernel@vger.kernel.org, Con Kolivas <kernel@kolivas.org>,
Nick Piggin <npiggin@suse.de>, Mike Galbraith <efault@gmx.de>,
Arjan van de Ven <arjan@infradead.org>,
Peter Williams <pwil3058@bigpond.net.au>,
caglar@pardus.org.tr, Mark Lord <lkml@rtr.ca>,
Zach Carter <linux@zachcarter.com>,
buddabrod <buddabrod@gmail.com>
Subject: Re: [patch] CFS scheduler, -v6
Date: Sun, 29 Apr 2007 14:13:30 +0200 [thread overview]
Message-ID: <1177848810.5791.104.camel@localhost.localdomain> (raw)
In-Reply-To: <1177848054.9756.30.camel@localhost>
On Sun, 2007-04-29 at 14:00 +0200, Kasper Sandberg wrote:
> On Sun, 2007-04-29 at 13:11 +0200, Willy Tarreau wrote:
> > On Sun, Apr 29, 2007 at 12:30:54PM +0200, Thomas Gleixner wrote:
> <snip>
> > Contrarily to most people, I don't see them as competitors. I see SD as
> > a first step with a low risk of regression, and CFS as an ultimate
> > solution relying on a more solid framework.
> >
> See this is the part i dont understand, what makes CFS the ultimate
> solution compared to SD?
SD is a one to one replacement of the existing scheduler guts - with a
different behaviour.
CFS is a huge step into a modular and hierarchical scheduler design,
which allows more than just implementing a clever scheduler for a single
purpose. In a hierarchical scheduler you can implement resource
management and other fancy things, in the monolitic design of the
current scheduler (and it's proposed replacement SD) you can't. But SD
can be made one of the modular variants.
tglx
next prev parent reply other threads:[~2007-04-29 12:11 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-25 21:47 [patch] CFS scheduler, -v6 Ingo Molnar
2007-04-26 2:14 ` Gene Heskett
2007-04-26 3:29 ` Nick Piggin
2007-04-26 3:49 ` Andrew Morton
2007-04-26 4:16 ` William Lee Irwin III
2007-04-26 8:27 ` Ingo Molnar
2007-04-26 9:18 ` Ingo Molnar
2007-04-26 14:06 ` Redeeman
2007-04-26 14:41 ` Gene Heskett
2007-04-26 20:09 ` Kasper Sandberg
2007-04-26 21:21 ` Gene Heskett
2007-04-27 4:02 ` Mike Galbraith
2007-04-27 6:01 ` Mike Galbraith
2007-04-27 11:53 ` Ingo Molnar
2007-04-27 11:55 ` Ingo Molnar
2007-04-27 13:39 ` Thomas Gleixner
2007-04-27 13:41 ` Ingo Molnar
2007-04-27 13:44 ` Thomas Gleixner
2007-04-28 15:35 ` Kasper Sandberg
2007-04-28 20:45 ` Lee Revell
2007-04-29 1:18 ` Kasper Sandberg
2007-04-29 5:30 ` Willy Tarreau
2007-04-29 6:45 ` Mike Galbraith
2007-04-29 6:59 ` Ingo Molnar
2007-04-29 7:16 ` Willy Tarreau
2007-04-29 7:30 ` Ingo Molnar
2007-04-29 7:38 ` Willy Tarreau
2007-04-29 8:00 ` Ingo Molnar
2007-04-29 8:02 ` Willy Tarreau
2007-04-29 9:52 ` Con Kolivas
2007-04-29 10:19 ` Mike Galbraith
2007-04-29 7:54 ` William Lee Irwin III
2007-04-29 8:03 ` Ingo Molnar
2007-04-29 8:16 ` William Lee Irwin III
2007-04-29 8:13 ` Willy Tarreau
2007-04-29 8:58 ` William Lee Irwin III
2007-04-29 8:11 ` Mike Galbraith
2007-04-29 10:30 ` Thomas Gleixner
2007-04-29 10:33 ` William Lee Irwin III
2007-04-29 10:48 ` Kasper Sandberg
2007-04-29 11:25 ` Thomas Gleixner
2007-04-29 10:53 ` Con Kolivas
2007-04-29 11:11 ` Bill Huey
2007-04-29 11:50 ` Thomas Gleixner
2007-04-29 11:11 ` Willy Tarreau
2007-04-29 11:46 ` Con Kolivas
2007-04-29 12:09 ` Paolo Ciarrocchi
2007-04-29 15:39 ` Gene Heskett
2007-04-29 11:59 ` Thomas Gleixner
2007-04-29 12:25 ` Willy Tarreau
2007-04-29 12:00 ` Kasper Sandberg
2007-04-29 12:13 ` Thomas Gleixner [this message]
2007-04-29 12:21 ` Kasper Sandberg
2007-04-29 12:55 ` William Lee Irwin III
2007-04-29 13:37 ` Thomas Gleixner
2007-05-01 7:55 ` Nick Piggin
2007-05-01 13:00 ` William Lee Irwin III
2007-04-29 20:30 ` Mark Lord
2007-04-29 15:28 ` Gene Heskett
2007-04-29 7:59 ` Kasper Sandberg
2007-04-29 8:05 ` Ingo Molnar
2007-04-29 15:42 ` Ray Lee
2007-04-29 17:09 ` Kasper Sandberg
2007-04-29 6:47 ` Ingo Molnar
[not found] ` <20070429170908.GA31417@elte.hu>
[not found] ` <20070429173902.GA4349@elte.hu>
2007-04-30 17:45 ` 3d smoothness (was: Re: [patch] CFS scheduler, -v6) Kasper Sandberg
2007-04-30 20:17 ` Ingo Molnar
2007-04-30 20:44 ` Kasper Sandberg
2007-04-27 12:52 ` [patch] CFS scheduler, -v6 William Lee Irwin III
2007-04-27 13:02 ` Ingo Molnar
2007-04-27 21:16 ` Lee Revell
2007-04-26 22:48 ` Con Kolivas
2007-04-27 0:39 ` Gene Heskett
2007-04-27 0:57 ` Con Kolivas
2007-04-27 1:03 ` Gene Heskett
2007-04-27 20:54 ` Bill Davidsen
2007-04-26 16:05 ` Mike Galbraith
2007-04-26 19:27 ` Thomas Gleixner
2007-04-26 19:35 ` Ingo Molnar
2007-04-26 19:42 ` Thomas Gleixner
2007-04-26 20:11 ` Ingo Molnar
2007-04-27 13:19 ` Mark Lord
2007-04-27 13:22 ` Mark Lord
2007-04-27 13:45 ` Ingo Molnar
2007-04-28 12:45 ` Srivatsa Vaddagiri
2007-04-28 13:53 ` Ingo Molnar
2007-04-28 15:23 ` Srivatsa Vaddagiri
2007-04-28 15:22 ` Ingo Molnar
2007-04-28 15:28 ` Srivatsa Vaddagiri
-- strict thread matches above, loose matches on Subject: below --
2007-04-27 21:59 Art Haas
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