From: Mike Kravetz <kravetz@us.ibm.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linus Torvalds <torvalds@transmeta.com>, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] 2.5.0 Multi-Queue Scheduler
Date: Sun, 9 Dec 2001 14:53:52 -0800 [thread overview]
Message-ID: <20011209145352.C1087@w-mikek2.sequent.com> (raw)
In-Reply-To: <20011209143152.A1087@w-mikek2.sequent.com> <E16DDj6-0008H8-00@the-village.bc.nu>
In-Reply-To: <E16DDj6-0008H8-00@the-village.bc.nu>; from alan@lxorguk.ukuu.org.uk on Sun, Dec 09, 2001 at 11:51:20PM +0000
On Sun, Dec 09, 2001 at 11:51:20PM +0000, Alan Cox wrote:
> Tasks with roughly the same priority will not neccessarily run in strict
> priority order but they will get appropriate extra time and run before
> anything measurably different in priority.
That makes it much easier. When we tried this, we were going for
strict priority. Therefore, you either had a really large number
of queues, or you had to scan all tasks on individual queues. Again,
we were trying to maintain existing behavior. In hind sight, this
doesn't look like a smart design constraint. :)
--
Mike
next prev parent reply other threads:[~2001-12-09 23:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-07 22:34 [RFC][PATCH] 2.5.0 Multi-Queue Scheduler Mike Kravetz
2001-12-08 11:58 ` Alan Cox
2001-12-08 23:42 ` Davide Libenzi
2001-12-09 22:31 ` Mike Kravetz
2001-12-09 23:51 ` Alan Cox
2001-12-09 22:53 ` Mike Kravetz [this message]
2001-12-10 0:10 ` Alan Cox
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