mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Ingo Oeser <ingo.oeser@informatik.tu-chemnitz.de>
To: Pavel Machek <pavel@ucw.cz>
Cc: Robert Love <rml@tech9.net>,
	Helge Hafting <helgehaf@aitel.hist.no>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] scheduler hints
Date: Wed, 12 Jun 2002 20:37:03 +0200	[thread overview]
Message-ID: <20020612203703.F22429@nightmaster.csn.tu-chemnitz.de> (raw)
In-Reply-To: <1023206034.912.89.camel@sinai> <3CFDC796.C05FC7E2@aitel.hist.no> <1023293838.917.283.camel@sinai> <20020607113231.GA133@elf.ucw.cz>

On Fri, Jun 07, 2002 at 01:32:31PM +0200, Pavel Machek wrote:
> > Boosting its priority will assure there is no priority inversion and
> > that, eventually, the task will run - but it does nothing to avoid the
> > nasty "grab resource, be preempted, reschedule a bunch, finally find
> > yourself running again since everyone else blocked" issue.
> > 
> > And I don't think only root should be able to do this.  If we later
> > punish the task (take back the timeslice we gave it) then this is
> > fair.
> 
> Another possibility might be to allow it to *steal* time from another
> processes... Of course only processes of same UID ;-).
> 									Pavel

Good idea! 

And I would say SID instead of UID and give up, if no task in the
same SID is runnable. 

One could provide different policies here, which the user can
choose/combine.

That way we aren't at least unfair to other users on our remote
machine.

Regards

Ingo Oeser
-- 
Science is what we can tell a computer. Art is everything else. --- D.E.Knuth

  reply	other threads:[~2002-06-12 19:25 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-06-04 15:53 Robert Love
2002-06-04 17:38 ` Simon Trimmer
2002-06-04 18:07   ` Robert Love
2002-06-05  8:11 ` Helge Hafting
2002-06-05 10:23   ` Dave Jones
2002-06-05 16:17   ` Robert Love
2002-06-07 11:32     ` Pavel Machek
2002-06-12 18:37       ` Ingo Oeser [this message]
2002-06-12 19:39         ` Robert Love
     [not found] <no.id>
2002-06-06  0:46 ` Rick Bressler
2002-06-06  0:53   ` Robert Love
2002-06-06  1:14     ` Rick Bressler
2002-06-06  1:05   ` Gerrit Huizenga
2002-06-06  1:11     ` Robert Love
2002-06-06  1:19       ` Gerrit Huizenga
2002-06-10 21:05   ` Bill Davidsen
2002-06-10 22:27     ` Gerrit Huizenga

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=20020612203703.F22429@nightmaster.csn.tu-chemnitz.de \
    --to=ingo.oeser@informatik.tu-chemnitz.de \
    --cc=helgehaf@aitel.hist.no \
    --cc=linux-kernel@vger.kernel.org \
    --cc=pavel@ucw.cz \
    --cc=rml@tech9.net \
    /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

all inboxes | Powered by JetHome®