From: Mike Galbraith <efault@gmx.de>
To: Andrew Morton <akpm@osdl.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
sam@vilain.net, vatsa@in.ibm.com, dev@openvz.org, mingo@elte.hu,
pwil3058@bigpond.net.au, sekharan@us.ibm.com, balbir@in.ibm.com,
linux-kernel@vger.kernel.org, maeda.naoaki@jp.fujitsu.com,
kurosawa@valinux.co.jp
Subject: Re: [RFC] CPU controllers?
Date: Sun, 18 Jun 2006 09:36:16 +0200 [thread overview]
Message-ID: <1150616176.7985.50.camel@Homer.TheSimpsons.net> (raw)
In-Reply-To: <20060617234259.dc34a20c.akpm@osdl.org>
On Sat, 2006-06-17 at 23:42 -0700, Andrew Morton wrote:
> On Sun, 18 Jun 2006 16:11:18 +1000
> Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> > Again, I don't care about the solutions at this stage. I want to know
> > what the problem is. Please?
>
> Isolation. To prevent one group of processes from damaging the performance
> of other groups, by providing manageability of the resource consumption of
> each group. There are plenty of applications of this, not just
> server-consolidation-via-server-virtualisation.
Scheduling contexts do sound useful. They're easily defeated though, as
evolution mail demonstrates to me every time it's GUI hangs and I see
that a nice 19 find is running, eating very little CPU, but effectively
DoSing evolution nonetheless (journal). I wonder how often people who
tried to distribute CPU would likewise be stymied by other resources.
-Mike
next prev parent reply other threads:[~2006-06-18 7:33 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-15 13:46 Srivatsa Vaddagiri
2006-06-15 21:52 ` Sam Vilain
2006-06-15 23:30 ` Peter Williams
2006-06-16 0:42 ` Matt Helsley
2006-06-17 8:48 ` Nick Piggin
2006-06-17 15:55 ` Balbir Singh
2006-06-17 16:48 ` Srivatsa Vaddagiri
2006-06-18 5:06 ` Nick Piggin
2006-06-18 5:53 ` Sam Vilain
2006-06-18 6:11 ` Nick Piggin
2006-06-18 6:40 ` Sam Vilain
2006-06-18 7:17 ` Nick Piggin
2006-06-18 6:42 ` Andrew Morton
2006-06-18 7:28 ` Nick Piggin
2006-06-19 19:03 ` Resource Management Requirements (was "[RFC] CPU controllers?") Chandra Seetharaman
2006-06-20 5:40 ` Srivatsa Vaddagiri
2006-06-18 7:36 ` Mike Galbraith [this message]
2006-06-18 7:49 ` [RFC] CPU controllers? Nick Piggin
2006-06-18 7:49 ` Nick Piggin
2006-06-18 9:09 ` Andrew Morton
2006-06-18 9:49 ` Mike Galbraith
2006-06-19 6:28 ` Mike Galbraith
2006-06-19 6:35 ` Andrew Morton
2006-06-19 6:46 ` Mike Galbraith
2006-06-19 18:21 ` Chris Friesen
2006-06-20 6:20 ` Mike Galbraith
2006-06-18 7:18 ` Srivatsa Vaddagiri
2006-06-19 2:07 ` Sam Vilain
2006-06-19 7:04 ` MAEDA Naoaki
2006-06-19 8:19 ` Sam Vilain
2006-06-19 8:41 ` MAEDA Naoaki
2006-06-19 8:53 ` Sam Vilain
2006-06-19 21:44 ` MAEDA Naoaki
2006-06-19 18:14 ` Chris Friesen
2006-06-19 19:11 ` Chandra Seetharaman
2006-06-19 20:28 ` Chris Friesen
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