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From: Artem Bityutskiy <dedekind@yandex.ru>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jussi Laako <jussi@sonarnerd.net>,
	Peter Zijlstra <peterz@infradead.org>,
	James Courtier-Dutton <James@superbug.co.uk>,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] Multimedia scheduling class, take 2
Date: Tue, 12 May 2009 08:38:26 +0300	[thread overview]
Message-ID: <4A090B52.7040301@yandex.ru> (raw)
In-Reply-To: <4A07E044.8040807@sonarnerd.net>

Jussi Laako wrote:
> Peter Zijlstra wrote:
>> Right, and I think the solution to this problem is twofold, 1)
>> application writers should start writing (soft) realtime applications if
>> they want (soft) realtime behaviour -- there's just no way around that.
> 
> Just to avoid need for reviewing and reworking ~800 klocs of user space
> code in just gstreamer, here's a second take on patches. This time
> splitting things into smaller pieces. Attached patch exposes 40
> priorities ~ nice values as something accessible through
> sched_()/pthreads API in order to control priorities of individual
> threads. Current Linux implementation of SCHED_OTHER is broken in a way,
> that it exposes only one single priority level - 0. Thus no possibility
> to properly control priorities of threads through pthread API. This is
> patch is against 2.6.29.2 and not tested, but builds. I can also send
> rest of the changes as separate small feature patches as needed.
> However, before doing any more work I would like to hear opinions on
> this and especially what is wrong with the code or idea...

Ingo,

would it be possible to comment on this?

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)

  reply	other threads:[~2009-05-12  5:39 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-29 18:40 [RFC][PATCH] Multimedia scheduling class Jussi Laako
2008-12-30  7:42 ` Peter Zijlstra
2008-12-30  8:39   ` Jussi Laako
2009-01-12  9:55     ` Jussi Laako
2009-01-12 10:28     ` Peter Zijlstra
2009-01-13  9:44       ` Jussi Laako
2009-01-17 12:49         ` James Courtier-Dutton
2009-01-25 23:09           ` Jussi Laako
2009-01-26  7:25             ` Peter Zijlstra
2009-05-11  8:22               ` [RFC][PATCH] Multimedia scheduling class, take 2 Jussi Laako
2009-05-12  5:38                 ` Artem Bityutskiy [this message]
2009-05-12  5:57                 ` Peter Zijlstra
2009-05-12  9:53                   ` Jussi Laako
2009-05-12 15:32                     ` Chris Friesen
2009-05-12 16:34                       ` Jussi Laako
2009-05-12 16:45                         ` Raistlin
2009-05-12 17:38                           ` Jussi Laako
2009-05-12 17:55                           ` Jussi Laako
2009-05-12 17:00                         ` Chris Friesen
2009-05-12 17:53                           ` Jussi Laako
2009-05-12 23:04                             ` Chris Friesen
2009-05-13  6:36                               ` Jussi Laako
2009-05-12 10:07                   ` Jussi Laako
2009-05-12 11:19                     ` Peter Zijlstra
2009-05-12 12:12                       ` Jussi Laako
2009-05-12  9:40                 ` Henrik Austad

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