From: "Chris Friesen" <cfriesen@nortel.com>
To: Michael Trimarchi <trimarchi@gandalf.sssup.it>
Cc: sat <takeuchi_satoru@jp.fujitsu.com>,
lkml <linux-kernel@vger.kernel.org>,
Con Kolivas <kernel@kolivas.org>, Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Raistlin <raistlin@linux.it>
Subject: Re: massive_intr on CFS, BFS, and EDF
Date: Fri, 25 Sep 2009 15:31:58 -0600 [thread overview]
Message-ID: <4ABD36CE.3080400@nortel.com> (raw)
In-Reply-To: <4ABCEABC.4050200@gandalf.sssup.it>
On 09/25/2009 10:07 AM, Michael Trimarchi wrote:
> It is important to note that
> the expected behavior of an edf scheduler is *not* a fair one. It has to
> do its best to guarantee the deadlines of the admitted tasks.
Do you allow oversubscription with EDF? It would seem so based on these
results. Would it maybe make sense to disallow oversubscription, or
make it an option?
If you have massive oversubscription with EDF, what is the design
intent? Do you try to meet the goals on as many tasks as possible,
while the oversubscribed tasks get nothing?
Chris
next prev parent reply other threads:[~2009-09-25 21:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-24 23:53 massive_intr on CFS, BFS, and EDF sat
2009-09-25 3:27 ` Satoru Takeuchi
2009-09-25 5:35 ` Raistlin
2009-09-25 5:35 ` Raistlin
2009-09-25 16:07 ` Michael Trimarchi
2009-09-25 21:31 ` Chris Friesen [this message]
2009-09-25 22:37 ` Peter Zijlstra
2009-09-25 22:46 ` Chris Friesen
2009-09-26 7:22 ` Raistlin
2009-09-26 6:56 ` Raistlin
2009-09-26 6:50 ` Raistlin
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