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From: Arjan van de Ven <arjan@infradead.org>
To: Andi Kleen <ak@muc.de>
Cc: vatsa@in.ibm.com, schwidefsky@de.ibm.com, jdike@addtoit.com,
	Andrew Morton <akpm@osdl.org>, Ingo Molnar <mingo@elte.hu>,
	Nick Piggin <nickpiggin@yahoo.com.au>,
	rmk+lkml@arm.linux.org.uk, linux-kernel@vger.kernel.org,
	user-mode-linux-devel@lists.sourceforge.net
Subject: [uml-devel] Re: [RFC] (How to) Let idle CPUs sleep
Date: Sun, 08 May 2005 15:44:14 +0200	[thread overview]
Message-ID: <1115559855.5998.26.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <m1oeblvo3x.fsf@muc.de>


> But it has to be *really* lightweight because these transistion can
> happen a lot (consider a CPU that very often goes to sleep for a short time)

lightweight is good of course. But even if it's medium weight.. it just
means you need to be REALLY idle (eg for longer time) for it to trigger.
I guess we need some sort of per arch "idleness threshhold" for this.




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  reply	other threads:[~2005-05-08 13:44 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-07 18:27 [uml-devel] [RFC] (How to) Let idle CPUs sleep Srivatsa Vaddagiri
2005-05-08  3:50 ` [uml-devel] " Rusty Russell
2005-05-08  4:14   ` Nick Piggin
2005-05-08 12:19     ` Srivatsa Vaddagiri
2005-05-09  6:27       ` Nick Piggin
2005-05-11 18:03     ` Tony Lindgren
2005-05-08 10:13   ` Arjan van de Ven
2005-05-08 13:33     ` Andi Kleen
2005-05-08 13:44       ` Arjan van de Ven [this message]
2005-05-08 14:53         ` Andi Kleen
2005-05-08 13:31 ` Andi Kleen
2005-05-08 15:26   ` Srivatsa Vaddagiri

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