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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Dominik Brodowski <devel@brodo.de>,
	cpufreq@www.linux.org.uk, linux-kernel@vger.kernel.org
Subject: Re: [PATCH][2.5.32] CPU frequency and voltage scaling (0/4)
Date: 29 Aug 2002 00:30:06 +0100	[thread overview]
Message-ID: <1030577406.7190.89.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.33.0208281406190.16824-100000@penguin.transmeta.com>

On Wed, 2002-08-28 at 22:08, Linus Torvalds wrote:
> 
> On Wed, 28 Aug 2002, Dominik Brodowski wrote:
> > 
> > "policy input" --> "frequency input" --> cpufreq core --> cpufreq driver
> >   user-space    |                 k e r n e l  -  s p a c e
> 
> No.
> 
> The "policy input" has to filter down ALL THE WAY. If you turn it into a 
> frequency-only input at _any_ time, you've lost information that the 
> lowest levels need. 

So what you are saying is that you want to be sure that something like
"please run at a low speed to save battery" is translated by smarter
cpus into "please save battery" and on spudstop the CPU would go "umm
duh ok 300MHz"

Ok now I think I understand your gripe.





  parent reply	other threads:[~2002-08-28 23:23 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-28 11:46 Dominik Brodowski
2002-08-28 18:47 ` Linus Torvalds
2002-08-28 18:48   ` Cort Dougan
2002-08-28 19:25     ` Alan Cox
2002-08-28 19:32       ` Cort Dougan
2002-08-29 10:26         ` Zwane Mwaikambo
2002-08-28 19:41       ` Peter Riocreux
2002-08-28 19:58       ` Linus Torvalds
2002-08-29  9:51         ` Padraig Brady
2002-08-29 10:23     ` Zwane Mwaikambo
2002-08-28 19:21   ` Alan Cox
2002-08-28 19:49     ` Linus Torvalds
2002-08-28 20:25       ` Alan Cox
2002-08-28 20:29         ` Linus Torvalds
2002-08-28 23:26           ` Alan Cox
2002-08-28 23:49             ` Linus Torvalds
2002-08-30  0:39               ` jw schultz
2002-08-29  7:01             ` Dominik Brodowski
2002-08-28 20:39         ` Dominik Brodowski
2002-08-28 21:05           ` Linus Torvalds
2002-09-06 11:31             ` Pavel Machek
2002-08-28 20:27       ` Dominik Brodowski
2002-08-28 20:19   ` Dominik Brodowski
2002-08-28 20:43     ` Linus Torvalds
2002-08-28 20:53       ` Dominik Brodowski
2002-08-28 21:08         ` Linus Torvalds
2002-08-28 23:00           ` george anzinger
2002-08-28 23:30           ` Alan Cox [this message]
2002-08-29  0:08             ` Linus Torvalds
2002-08-29  7:07               ` Dominik Brodowski
2002-08-29 10:02               ` Padraig Brady
2002-08-29 10:53               ` Alan Cox
2002-08-29 13:38                 ` Dave Jones
2002-08-29 18:47                 ` Linus Torvalds
2002-08-29 19:24                   ` Alan Cox
2002-08-29 21:22                   ` george anzinger
2002-08-30  6:46                     ` David Gibson
2002-08-30  7:54                     ` Helge Hafting
2002-08-30  3:21                 ` David Lang
2002-08-28 20:25 Grover, Andrew
2002-08-28 20:46 ` Linus Torvalds
2002-08-29 15:07 Pering, Trevor
2002-08-30  8:04 ` Helge Hafting
2002-08-30 11:53   ` Dave Jones
2002-08-30 12:36     ` Helge Hafting
2002-08-30 22:43       ` george anzinger

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