From: Ingo Molnar <mingo@elte.hu>
To: Peter Williams <pwil3058@bigpond.net.au>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
Con Kolivas <kernel@kolivas.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] CPU scheduler: Simplified interactive bonus mechanism
Date: Thu, 29 Dec 2005 09:02:06 +0100 [thread overview]
Message-ID: <20051229080206.GA22814@elte.hu> (raw)
In-Reply-To: <43B35D43.40902@bigpond.net.au>
* Peter Williams <pwil3058@bigpond.net.au> wrote:
> > So, as Con seems to imply, it is JASW (just another scheduler
> > rewrite).
>
> Not a rewrite just some major surgery to one small part (at least when
> compared to nicksched, staircase and the SPA schedulers). This
> doesn't effect the run queue structure or the load balancing
> mechanisms. Or, for that matter, even the bonus mechanism itself
> other than the calculation of the bonus as the way the bonus is
> applied once calculated is unchanged.
given the experience, i'm quite reluctant to do that. We should rather
concentrate on trying to fix the rare odd case that gets misjudged, than
trying to invent totally new mechanism that happen to get _that_ case
right. (and most likely get alot of other cases wrong.)
Ingo
next prev parent reply other threads:[~2005-12-29 8:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-28 6:24 [RFC] CPU scheduler: Simplified interactive bonus mechanism Peter Williams
2005-12-28 6:35 ` Con Kolivas
2005-12-28 7:47 ` Nick Piggin
2005-12-29 3:51 ` Peter Williams
2005-12-29 8:02 ` Ingo Molnar [this message]
2005-12-29 8:22 ` Nick Piggin
2005-12-28 8:00 ` Ingo Molnar
2005-12-28 8:36 ` Ingo Molnar
2005-12-28 13:16 ` Peter Williams
2006-01-03 0:55 ` Peter Williams
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