From: Bill Davidsen <davidsen@tmr.com>
To: Sherif Fadel <fahmy@vt.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: scheduling co-processors
Date: Mon, 03 Aug 2009 15:52:29 -0400 [thread overview]
Message-ID: <4A773FFD.4050709@tmr.com> (raw)
In-Reply-To: <1249312084.5762.17.camel@sherif-laptop>
Sherif Fadel wrote:
> Hi,
>
> I have a dual-core system on which I would like to treat one processor
> as a scheduling co-processor. I have already implemented some custom
> scheduling policies and tested them with SMP disabled, I would not like
> to see if it is possible to have the scheduling algorithm running on one
> core and the scheduled tasks running on another.
>
> I do not know if I can somehow use cpus_allowed to restrict the kernel
> to one core and the running tasks to another. Is this possible? If so,
> could you please inform me how one would go about this?
>
You can look at cpu affinity and see if it does some of what you want.
> In case you are wondering why I would need this, I am writing a bunch of
> high-overhead distributed scheduling algorithms and I want to mitigate
> their overhead in this way.
>
> Thanks.
>
--
Bill Davidsen <davidsen@tmr.com>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
next prev parent reply other threads:[~2009-08-03 19:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-03 15:08 scheduling co-processors Sherif Fadel
2009-08-03 15:59 ` Peter Zijlstra
2009-08-03 19:52 ` Bill Davidsen [this message]
2009-08-03 20:28 ` Casey Dahlin
2009-08-04 10:28 ` Sherif F. Fahmy
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