From: Ian Kumlien <pomac@vapor.com>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: Con Kolivas <kernel@kolivas.org>,
Daniel Phillips <phillips@arcor.de>,
linux-kernel@vger.kernel.org, Robert Love <rml@tech9.net>
Subject: Re: [SHED] Questions.
Date: Tue, 02 Sep 2003 19:22:54 +0200 [thread overview]
Message-ID: <1062523374.5171.321.camel@big.pomac.com> (raw)
In-Reply-To: <3F547A4B.7060309@cyberone.com.au>
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On Tue, 2003-09-02 at 13:08, Nick Piggin wrote:
> Ian Kumlien wrote:
> >You could say that the problem the current scheduler has is that it's
> >not allowed to starve anything, thats why we add stuff to give
> >interactive bonus. But if it *was* allowed to starve but gave bonus to
> >the starved processes that would make most of the interactive detection
> >useless (yes, we still need the "didn't use their timeslice" bit and
> >with a timeslice that gets smaller the higher the pri we'd automagically
> >balance most processes).
> >
> >(As usual my assumptions might be really wrong...)
>
> First off, no general purpose scheduler should allow starvation depending
> on your definition. The interactivity stuff, and even dynamic priorities
> allow short term unfairness.
When you reach a certain load you *have to* allow starvation. Ie, you
can't work around it... All i say is that if we have a more relaxed
method we might benefit from it.
> Hmm... what else? The "didn't use their timeslice" thing is not
> applicable: a new timeslice doesn't get handed out until the previous one
> is used. The priorities thing is done based on how much sleeping the
> process does.
And not the amount of cpu consumed by the app / go?
> Its funny, everyone seems to have very similar ideas that they are
> expressing by describing different implementations they have in mind.
Yes =), I'm mailing Con directly now as well, to save some unwanted
traffic here =). I just hope that we'll reach a agreement somewhere
about whats sane or not...
Mail me if you're interested as well.
--
Ian Kumlien <pomac@vapor.com>
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next prev parent reply other threads:[~2003-09-02 18:00 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-31 10:07 [SHED] Questions Ian Kumlien
2003-08-31 10:17 ` Nick Piggin
2003-08-31 10:24 ` Ian Kumlien
2003-08-31 10:41 ` Nick Piggin
2003-08-31 10:46 ` Nick Piggin
[not found] ` <1062326980.9959.65.camel@big.pomac.com>
[not found] ` <3F51D4A4.4090501@cyberone.com.au>
2003-08-31 11:08 ` Ian Kumlien
2003-08-31 11:31 ` Nick Piggin
2003-08-31 11:43 ` Ian Kumlien
2003-08-31 18:53 ` Robert Love
2003-08-31 19:31 ` Ian Kumlien
2003-08-31 19:51 ` Robert Love
2003-08-31 22:41 ` Ian Kumlien
2003-08-31 23:41 ` Robert Love
2003-09-01 0:00 ` Ian Kumlien
2003-09-01 2:50 ` Con Kolivas
2003-09-01 15:58 ` Antonio Vargas
2003-09-01 22:19 ` Ian Kumlien
2003-09-01 4:03 ` Robert Love
2003-09-01 5:07 ` Con Kolivas
2003-09-01 5:55 ` Robert Love
2003-09-01 22:24 ` Ian Kumlien
2003-09-01 14:21 ` Antonio Vargas
2003-09-01 19:36 ` Geert Uytterhoeven
2003-09-01 22:49 ` Ian Kumlien
2003-09-01 15:07 ` Daniel Phillips
2003-09-01 14:16 ` Antonio Vargas
2003-09-01 23:03 ` Ian Kumlien
2003-09-02 0:04 ` Nick Piggin
2003-09-02 0:23 ` Con Kolivas
2003-09-02 10:25 ` Ian Kumlien
2003-09-02 11:08 ` Nick Piggin
2003-09-02 17:22 ` Ian Kumlien [this message]
2003-09-02 23:49 ` Nick Piggin
2003-09-03 23:02 ` Ian Kumlien
2003-09-04 1:39 ` Mike Fedyk
2003-09-02 10:44 ` Wes Janzen
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