linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Ingo Molnar <mingo@elte.hu>
To: Mike Galbraith <efault@gmx.de>
Cc: Con Kolivas <kernel@kolivas.org>,
	Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [patch] sched-2.6.0-test1-G6, interactivity changes
Date: Mon, 28 Jul 2003 09:44:37 +0200 (CEST)	[thread overview]
Message-ID: <Pine.LNX.4.44.0307280935300.4596-100000@localhost.localdomain> (raw)
In-Reply-To: <5.2.1.1.2.20030728093215.01be8f68@pop.gmx.net>


On Mon, 28 Jul 2003, Mike Galbraith wrote:

> >Yes I can reproduce it, but we need the Kirk approach and cheat. Some
> >workaround for tasks that have fallen onto the expired array but shouldn't be
> >there needs to be created. But first we need to think of one before we can
> >create one...
> 
> Oh good, it's not my poor little box.  My experimental tree already has
> a "Kirk" ;-)

could you give -G7 a try:

	redhat.com/~mingo/O(1)-scheduler/sched-2.6.0-test1-G7

Mr. Kirk was busy fixing the IDE code (a subsystem he loves to contribute
to) but i managed to get some code from Mr. Spock: it introduces
ON_RUNQUEUE_WEIGHT, set to 30% currently. Wakeups that come from IRQ
contexts get a 100% sleep average - most hw interrupts are of interactive
nature.

this method should result in process-context wakeups giving a limited but
load-proportional boost - which boost is enough to prevent such tasks from
getting max CPU hogs, but not enough to make them permanently interactive.

	Ingo


  reply	other threads:[~2003-07-28  7:34 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-27 13:40 [patch] sched-2.6.0-test1-G6, interactivity changes Ingo Molnar
2003-07-27 14:03 ` Con Kolivas
2003-07-28  7:24   ` Ingo Molnar
2003-07-28  8:50     ` Con Kolivas
2003-07-28 21:38     ` Bill Davidsen
2003-07-28 22:00       ` Con Kolivas
2003-07-30  2:49         ` Bill Davidsen
2003-08-08 19:41         ` Rob Landley
2003-07-27 19:18 ` Felipe Alfaro Solana
2003-07-28  6:04   ` Mike Galbraith
2003-07-28  6:45     ` Andre Hedrick
2003-07-28  7:05     ` Con Kolivas
2003-07-28  7:33       ` Mike Galbraith
2003-07-28  7:44         ` Ingo Molnar [this message]
2003-07-30 14:24           ` Szonyi Calin
     [not found]         ` <Pine.LNX.4.44.0307280935300.4596-100000@localhost.localdom ain>
2003-07-28  8:15           ` Mike Galbraith
2003-07-28  8:42             ` Con Kolivas
2003-07-28  8:49               ` Mike Galbraith
     [not found]     ` <Pine.LNX.4.10.10307272338160.30891-100000@master.linux-ide .org>
2003-07-28  7:27       ` Mike Galbraith
2003-07-28 17:33         ` Andre Hedrick
     [not found]         ` <Pine.LNX.4.10.10307281030180.30891-100000@master.linux-ide .org>
2003-07-29  7:44           ` Mike Galbraith
2003-07-28 17:17 ` Jose Luis Domingo Lopez

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=Pine.LNX.4.44.0307280935300.4596-100000@localhost.localdomain \
    --to=mingo@elte.hu \
    --cc=efault@gmx.de \
    --cc=felipe_alfaro@linuxmail.org \
    --cc=kernel@kolivas.org \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).