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
next prev parent 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
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