All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jussi Laako <jussi@sonarnerd.net>
To: Peter Zijlstra <peterz@infradead.org>
Cc: James Courtier-Dutton <James@superbug.co.uk>,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	d.faggioli@sssup.it
Subject: Re: [RFC][PATCH] Multimedia scheduling class, take 2
Date: Tue, 12 May 2009 12:53:11 +0300	[thread overview]
Message-ID: <4A094707.5040307@sonarnerd.net> (raw)
In-Reply-To: <1242107859.11251.301.camel@twins>

Peter Zijlstra wrote:
> As to the patch, I still think its an exceedingly bad idea to create
> such a horridly ill defined scheduler class. There's nothing that keeps
> people from stuffing everything in there and either generating DoS
> issues or still generating bad interactivity.

Lite patch practically exports nice levels as scheduling priorities in
order to make it possible to assign different levels to different
threads of the same process.

> I certainly don't think the current situation is bad enough to warrant
> things like that, media on my machines works peachy (*cheer* for XV on
> R600).

Naturally pretty much anything works when CPU load is under 25%. When
the load on low power embedded system is around 95-100% things get
hairier...

"Buy faster CPU" is not always an option...


	- Jussi

  reply	other threads:[~2009-05-12  9:53 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
2009-05-12  5:57                 ` Peter Zijlstra
2009-05-12  9:53                   ` Jussi Laako [this message]
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4A094707.5040307@sonarnerd.net \
    --to=jussi@sonarnerd.net \
    --cc=James@superbug.co.uk \
    --cc=d.faggioli@sssup.it \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    --cc=peterz@infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.