From: Lee Revell <rlrevell@joe-job.com>
To: Con Kolivas <kernel@kolivas.org>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
ck@vds.kolivas.org
Subject: Re: [PATCH] mm: yield during swap prefetching
Date: Tue, 07 Mar 2006 21:27:13 -0500 [thread overview]
Message-ID: <1141784834.767.134.camel@mindpipe> (raw)
In-Reply-To: <200603081322.02306.kernel@kolivas.org>
On Wed, 2006-03-08 at 13:22 +1100, Con Kolivas wrote:
> > How is the scheduler supposed to know to penalize a kernel compile
> > taking 100% CPU but not a game using 100% CPU?
>
> Because being a serious desktop operating system that we are (bwahahahaha)
> means the user should not have special privileges to run something as simple
> as a game. Games should not need special scheduling classes. We can always
> use 'nice' for a compile though. Real time audio is a completely different
> world to this.
Actually recent distros like the upcoming Ubuntu Dapper support the new
RLIMIT_NICE and RLIMIT_RTPRIO so this would Just Work without any
special privileges (well, not root anyway - you'd have to put the user
in the right group and add one line to /etc/security/limits.conf).
I think OSX also uses special scheduling classes for stuff with RT
constraints.
The only barrier I see is that games aren't specifically written to take
advantage of RT scheduling because historically it's only been available
to root.
Lee
next prev parent reply other threads:[~2006-03-08 2:27 UTC|newest]
Thread overview: 112+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-07 23:13 [PATCH] mm: yield during swap prefetching Con Kolivas
2006-03-07 23:26 ` Andrew Morton
2006-03-07 23:32 ` Con Kolivas
2006-03-08 0:05 ` Andrew Morton
2006-03-08 0:51 ` Con Kolivas
2006-03-08 1:11 ` Andrew Morton
2006-03-08 1:12 ` Con Kolivas
2006-03-08 1:19 ` Con Kolivas
2006-03-08 1:23 ` Andrew Morton
2006-03-08 1:28 ` Con Kolivas
2006-03-08 2:08 ` Lee Revell
2006-03-08 2:12 ` Con Kolivas
2006-03-08 2:18 ` Lee Revell
2006-03-08 2:22 ` Con Kolivas
2006-03-08 2:27 ` Lee Revell [this message]
2006-03-08 2:30 ` Con Kolivas
2006-03-08 2:52 ` [ck] " André Goddard Rosa
2006-03-08 3:03 ` Lee Revell
2006-03-08 3:05 ` Con Kolivas
2006-03-08 21:07 ` Zan Lynx
2006-03-08 23:00 ` Con Kolivas
2006-03-08 23:48 ` Zan Lynx
2006-03-09 0:07 ` Con Kolivas
2006-03-09 3:13 ` Zan Lynx
2006-03-09 4:08 ` Con Kolivas
2006-03-09 4:54 ` Lee Revell
2006-03-08 7:51 ` Jan Knutar
2006-03-08 8:39 ` Con Kolivas
2006-03-09 8:57 ` Helge Hafting
2006-03-09 9:08 ` Con Kolivas
[not found] ` <4410AFD3.7090505@bigpond.net.au>
2006-03-10 9:01 ` [ck] " Andreas Mohr
2006-03-10 9:11 ` Con Kolivas
2006-03-08 22:24 ` Pavel Machek
2006-03-09 2:22 ` Nick Piggin
2006-03-09 2:30 ` Con Kolivas
2006-03-09 2:57 ` Nick Piggin
2006-03-09 9:11 ` Con Kolivas
2006-03-08 13:36 ` [ck] " Con Kolivas
2006-03-17 9:06 ` Ingo Molnar
2006-03-17 10:46 ` interactive task starvation Mike Galbraith
2006-03-17 17:15 ` Mike Galbraith
2006-03-20 7:09 ` Mike Galbraith
2006-03-20 10:22 ` Ingo Molnar
2006-03-21 6:47 ` Willy Tarreau
2006-03-21 7:51 ` Mike Galbraith
2006-03-21 9:13 ` Willy Tarreau
2006-03-21 9:14 ` Ingo Molnar
2006-03-21 11:15 ` Willy Tarreau
2006-03-21 11:18 ` Ingo Molnar
2006-03-21 11:53 ` Con Kolivas
2006-03-21 13:10 ` Mike Galbraith
2006-03-21 13:13 ` Con Kolivas
2006-03-21 13:33 ` Mike Galbraith
2006-03-21 13:37 ` Con Kolivas
2006-03-21 13:44 ` Willy Tarreau
2006-03-21 13:45 ` Con Kolivas
2006-03-21 14:01 ` Mike Galbraith
2006-03-21 14:17 ` Con Kolivas
2006-03-21 15:20 ` Con Kolivas
2006-03-21 17:50 ` Willy Tarreau
2006-03-22 4:18 ` Mike Galbraith
2006-03-21 17:51 ` Mike Galbraith
2006-03-21 13:38 ` Willy Tarreau
2006-03-21 13:48 ` Mike Galbraith
2006-03-21 12:07 ` Mike Galbraith
2006-03-21 12:59 ` Willy Tarreau
2006-03-21 13:24 ` Mike Galbraith
2006-03-21 13:53 ` Con Kolivas
2006-03-21 14:17 ` Mike Galbraith
2006-03-21 14:19 ` Con Kolivas
2006-03-21 14:25 ` Ingo Molnar
2006-03-21 14:28 ` Con Kolivas
2006-03-21 14:30 ` Ingo Molnar
2006-03-21 14:28 ` Mike Galbraith
2006-03-21 14:30 ` Con Kolivas
2006-03-21 14:32 ` Ingo Molnar
2006-03-21 14:44 ` Willy Tarreau
2006-03-21 14:52 ` Ingo Molnar
2006-03-29 3:01 ` Lee Revell
2006-03-29 5:56 ` Ray Lee
2006-03-29 6:16 ` Lee Revell
2006-03-21 14:36 ` Mike Galbraith
2006-03-21 14:39 ` Con Kolivas
2006-03-21 14:39 ` Willy Tarreau
2006-03-21 18:39 ` Rafael J. Wysocki
2006-03-21 19:32 ` Willy Tarreau
2006-03-21 21:47 ` Rafael J. Wysocki
2006-03-21 22:51 ` Peter Williams
2006-03-22 3:49 ` Mike Galbraith
2006-03-22 3:59 ` Peter Williams
2006-03-22 12:14 ` [interbench numbers] " Mike Galbraith
2006-03-22 20:27 ` Con Kolivas
2006-03-23 3:22 ` Mike Galbraith
2006-03-23 5:43 ` Con Kolivas
2006-03-23 5:53 ` Mike Galbraith
2006-03-23 11:07 ` Mike Galbraith
2006-03-24 0:21 ` Con Kolivas
2006-03-24 5:02 ` Mike Galbraith
2006-03-24 5:04 ` Con Kolivas
2006-03-17 12:38 ` [PATCH] sched: activate SCHED BATCH expired Con Kolivas
2006-03-17 13:07 ` Ingo Molnar
2006-03-17 13:26 ` Nick Piggin
2006-03-17 13:36 ` Con Kolivas
2006-03-17 13:46 ` Nick Piggin
2006-03-17 13:51 ` Nick Piggin
2006-03-17 14:11 ` Con Kolivas
2006-03-17 14:59 ` Ingo Molnar
2006-03-17 13:47 ` [ck] " Andreas Mohr
2006-03-17 13:59 ` Con Kolivas
2006-03-17 14:06 ` Nick Piggin
2006-03-08 8:48 ` [ck] Re: [PATCH] mm: yield during swap prefetching Andreas Mohr
2006-03-08 8:52 ` Con Kolivas
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