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From: Dominik Brodowski <linux@dominikbrodowski.net>
To: st3@riseup.net
Cc: Dave Jones <davej@redhat.com>,
	cpufreq@lists.linux.org.uk, linux-kernel@vger.kernel.org
Subject: Re: enhanced intel speedstep feature was Re: speedstep-centrino on dothan
Date: Thu, 7 Jul 2005 23:29:50 +0200	[thread overview]
Message-ID: <20050707212950.GA25411@isilmar.linta.de> (raw)
In-Reply-To: <20050707232238.077c7c1c@horst.morte.male>

On Thu, Jul 07, 2005 at 11:22:38PM +0200, st3@riseup.net wrote:
> On Thu, 7 Jul 2005 23:10:33 +0200
> Dominik Brodowski <linux@dominikbrodowski.net> wrote:
> 
> > Do you use ACPI-based idling? If so, in which state is the CPU in (cat
> > /proc/acpi/processor/*/power ? I suspect that you do not use ACPI (else 
> > you wouldn't need the table-based approach) or that the ACPI-based idling is
> > broken on your notebook; as then the Linux idle handler  only makes use of 
> > "hlt" (IIRC), that is ACPI C1, while throttling "forces" ACPI C2 (again
> >  IIRC).
> 
> For idling, I didn't mean 'real idling', but instead just 'doing nothing'
> in ACPI C1 state, that's simply a CPU usage < 1%.
> 
> Sorry for being so lame =)

That's exactly the "idling" I meant. So if it is only ACPI C1, then
throttling makes some sense. It makes more sense, though, to get ACPI C2, C3
and possibly C4 to work :)

	Dominik

  reply	other threads:[~2005-07-07 21:33 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-07-06  9:22 st3
2005-07-06 14:06 ` Dominik Brodowski
2005-07-06 19:45   ` st3
2005-07-06 16:30 ` Pedro Ramalhais
2005-07-06 19:58 ` Bill Davidsen
2005-07-06 21:11   ` Dave Jones
2005-07-06 21:55     ` st3
2005-07-07 20:00       ` enhanced intel speedstep feature was " st3
2005-07-07 20:06         ` Dave Jones
2005-07-07 20:22           ` st3
2005-07-07 20:40             ` Dave Jones
2005-07-07 20:51             ` Joseph Pingenot
2005-07-07 21:08               ` Dominik Brodowski
2005-07-07 21:34                 ` Joseph Pingenot
2005-07-07 21:51                   ` Dominik Brodowski
2005-07-07 21:10             ` Dominik Brodowski
2005-07-07 21:22               ` st3
2005-07-07 21:29                 ` Dominik Brodowski [this message]
2005-07-07 21:59   ` st3
2005-07-08  5:10     ` Dominik Brodowski
2005-07-08  8:58       ` st3
2005-07-08 10:59     ` Nikolay Pelov

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