From: Mike Galbraith <efault@gmx.de>
To: Con Kolivas <kernel@kolivas.org>
Cc: linux kernel mailing list <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>, Ingo Molnar <mingo@elte.hu>,
Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>
Subject: Re: [PATCH] O13int for interactivity
Date: Mon, 04 Aug 2003 22:11:15 +0200 [thread overview]
Message-ID: <5.2.1.1.2.20030804213330.0196e2d0@pop.gmx.net> (raw)
In-Reply-To: <200308050207.18096.kernel@kolivas.org>
At 02:07 AM 8/5/2003 +1000, Con Kolivas wrote:
>The _major_ change in this patch is that tasks on uninterruptible sleep do
>not
>earn any sleep avg during that sleep; it is not voluntary sleep so they
>should
>not get it. This has the effect of stopping cpu hogs from gaining dynamic
>priority during periods of heavy I/O. Very good for the jerks you may
>see in X or audio skips when you start a whole swag of disk intensive cpu
>hogs
>(eg make -j large number). I've simply dropped all their sleep_avg, but
>weighting it may be more appropriate. This has the side effect that pure
>disk tasks (eg cp) have relatively low priority which is why weighting may
>be better. We shall see.
IMHO, absolute cut off is a very bad idea (btdt, and it _sucked rocks_).
The last thing in the world you want to do is to remove differentiation
between tasks... try to classify them and make them all the same within
their class. For grins, take away all remaining differentiation, and run a
hefty parallel make.
-Mike
next prev parent reply other threads:[~2003-08-04 20:08 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-04 16:07 [PATCH] O13int for interactivity Con Kolivas
2003-08-04 18:24 ` Felipe Alfaro Solana
2003-08-04 19:15 ` Antonio Vargas
2003-08-04 21:32 ` Con Kolivas
2003-08-04 20:11 ` Mike Galbraith [this message]
2003-08-04 22:11 ` Con Kolivas
2003-08-05 7:10 ` Mike Galbraith
2003-08-05 2:11 ` Nick Piggin
2003-08-05 2:20 ` Con Kolivas
2003-08-05 2:21 ` Nick Piggin
2003-08-05 3:06 ` Con Kolivas
2003-08-05 3:17 ` Nick Piggin
2003-08-06 18:48 ` Interactivity improvements Timothy Miller
2003-08-06 19:01 ` Mike Fedyk
2003-08-06 20:09 ` Helge Hafting
2003-08-06 21:15 ` Con Kolivas
2003-08-05 3:18 ` [PATCH] O13int for interactivity Con Kolivas
2003-08-05 3:31 ` Nick Piggin
2003-08-05 5:04 ` Con Kolivas
2003-08-05 5:12 ` Nick Piggin
2003-08-05 5:16 ` Con Kolivas
2003-08-05 5:28 ` Nick Piggin
2003-08-05 10:22 ` Con Kolivas
2003-08-05 10:32 ` Nick Piggin
2003-08-05 10:45 ` Con Kolivas
2003-08-05 10:48 ` Nick Piggin
2003-08-05 10:56 ` Con Kolivas
2003-08-05 11:03 ` Nick Piggin
2003-08-05 11:12 ` Con Kolivas
2003-08-05 11:23 ` Nick Piggin
2003-08-05 11:34 ` Con Kolivas
2003-08-05 10:54 ` Arjan van de Ven
2003-08-05 11:10 ` Con Kolivas
2003-08-06 21:33 ` Timothy Miller
2003-08-06 21:33 ` Con Kolivas
2003-08-07 0:27 ` Timothy Miller
2003-08-07 0:27 ` Con Kolivas
2003-08-07 0:44 ` Timothy Miller
2003-08-11 6:48 ` Rob Landley
2003-08-11 15:47 ` William Lee Irwin III
2003-08-12 2:51 ` Nick Piggin
2003-08-12 6:16 ` Mike Galbraith
2003-08-12 7:07 ` Nick Piggin
2003-08-12 7:18 ` Nick Piggin
2003-08-12 9:42 ` Mike Galbraith
2003-08-12 21:11 ` Mike Fedyk
2003-08-13 6:55 ` Mike Galbraith
2003-08-12 9:22 ` Mike Galbraith
2003-08-12 9:37 ` Nick Piggin
2003-08-12 9:48 ` Mike Galbraith
2003-08-12 10:29 ` Rob Landley
2003-08-12 11:08 ` Nick Piggin
2003-08-12 11:35 ` Rob Landley
2003-08-12 11:58 ` Nick Piggin
2003-08-13 2:08 ` jw schultz
2003-08-13 3:07 ` Gene Heskett
2003-08-13 3:24 ` Nick Piggin
2003-08-13 5:24 ` Gene Heskett
2003-08-13 5:43 ` Andrew McGregor
2003-08-13 12:33 ` Gene Heskett
2003-08-14 5:03 ` Andrew McGregor
2003-08-14 10:48 ` Gene Heskett
2003-08-12 15:36 ` Timothy Miller
2003-08-05 6:03 ` Andrew Morton
2003-08-05 7:26 ` Con Kolivas
2003-08-05 8:12 ` Oliver Neukum
2003-08-05 8:20 ` Con Kolivas
2003-08-05 8:27 ` Mike Galbraith
2003-08-05 8:43 ` Con Kolivas
2003-08-05 9:09 ` Mike Galbraith
2003-08-05 9:19 ` Con Kolivas
2003-08-05 10:04 ` Nick Piggin
2003-08-11 6:57 ` Rob Landley
2003-08-11 15:58 ` William Lee Irwin III
2003-08-05 7:53 ` Mike Galbraith
[not found] <gQ4n.5oS.7@gated-at.bofh.it>
[not found] ` <jUl6.5eh.1@gated-at.bofh.it>
[not found] ` <jUuT.5kZ.15@gated-at.bofh.it>
[not found] ` <jWn1.6K1.11@gated-at.bofh.it>
2003-08-13 13:48 ` Pascal Schmidt
2003-08-13 14:50 ` Gene Heskett
-- strict thread matches above, loose matches on Subject: below --
2003-08-06 10:35 Voluspa
2003-08-04 19:12 Voluspa
2003-07-27 15:12 [PATCH] O10int " Con Kolivas
2003-07-28 18:08 ` Valdis.Kletnieks
2003-07-28 18:40 ` Andrew Morton
2003-08-04 18:51 ` [PATCH] O13int " Felipe Alfaro Solana
2003-08-04 18:58 ` Felipe Alfaro Solana
2003-08-04 21:46 ` Con Kolivas
2003-08-04 22:16 ` Felipe Alfaro Solana
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