From: Con Kolivas <kernel@kolivas.org>
To: William Lee Irwin III <wli@holomorphy.com>,
Timothy Miller <miller@techsource.com>
Cc: rob@landley.net, Charlie Baylis <cb-lkml@fish.zetnet.co.uk>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] O12.2int for interactivity
Date: Thu, 14 Aug 2003 16:59:33 +1000 [thread overview]
Message-ID: <200308141659.33447.kernel@kolivas.org> (raw)
In-Reply-To: <20030814060959.GK32488@holomorphy.com>
On Thu, 14 Aug 2003 16:09, William Lee Irwin III wrote:
> William Lee Irwin III wrote:
> "scale" on which scheduling events should happen, and as tasks become
> more cpu-bound, they have longer timeslices, so that two cpu-bound
> tasks of identical priority will RR very slowly and have reduced
> context switch overhead, but are near infinitely preemptible by more
> interactive or short-running tasks.
Actually the timeslice handed out is purely dependent on the static priority,
not the priority it is elevated or demoted to by the interactivity estimator.
However lower priority tasks (cpu bound ones if the estimator has worked
correctly) will always be preempted by higher priority tasks (interactive
ones) whenever they wake up.
Con
next prev parent reply other threads:[~2003-08-14 6:53 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-04 19:50 [PATCH] O12.2int for interactivity Charlie Baylis
2003-08-05 2:10 ` Con Kolivas
2003-08-05 22:49 ` Timothy Miller
2003-08-06 0:12 ` charlie.baylis
2003-08-06 1:23 ` Con Kolivas
2003-08-06 22:24 ` Timothy Miller
2003-08-11 8:14 ` Rob Landley
2003-08-11 23:49 ` Timothy Miller
2003-08-12 0:17 ` William Lee Irwin III
2003-08-12 15:04 ` Timothy Miller
2003-08-12 23:32 ` William Lee Irwin III
2003-08-13 15:46 ` Timothy Miller
2003-08-14 6:09 ` William Lee Irwin III
2003-08-14 6:59 ` Con Kolivas [this message]
2003-08-14 7:01 ` William Lee Irwin III
2003-08-14 7:46 ` Con Kolivas
2003-08-14 20:03 ` Timothy Miller
2003-08-15 16:40 ` Con Kolivas
2003-08-14 20:00 ` Timothy Miller
2003-08-15 16:38 ` Con Kolivas
2003-08-15 18:12 ` Timothy Miller
2003-08-17 2:19 ` William Lee Irwin III
2003-08-17 18:00 ` Mike Fedyk
2003-08-14 19:57 ` Timothy Miller
2003-08-15 16:35 ` Con Kolivas
2003-08-15 18:17 ` Timothy Miller
2003-08-16 2:29 ` Con Kolivas
2003-08-14 19:54 ` Timothy Miller
-- strict thread matches above, loose matches on Subject: below --
2003-08-03 21:19 Voluspa
2003-08-04 2:34 ` Con Kolivas
2003-08-03 10:14 Con Kolivas
2003-08-03 11:25 ` Ingo Molnar
2003-08-03 11:36 ` Con Kolivas
2003-08-04 3:06 ` Con Kolivas
2003-08-03 11:37 ` Felipe Alfaro Solana
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