From: Johan Vromans <jvromans-2pNSKKP3PSKEVqv0pETR8A@public.gmane.org>
To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Centrino speedstep
Date: Sat, 01 Jan 2005 11:50:59 +0100 [thread overview]
Message-ID: <m2652hh17w.fsf@phoenix.squirrel.nl> (raw)
In-Reply-To: <20041231082524.GA8312-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org> (Dominik Brodowski's message of "Fri, 31 Dec 2004 09:25:24 +0100")
Dominik Brodowski <linux-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org> writes:
> On Fri, Dec 31, 2004 at 01:25:51AM +0000, Pedro Venda wrote:
>> also, how exactly can I use ACPI throttling? because with the speestep
>> driver, I can't go below 600MHz, but 12% of maximum frequency is 180MHz
>> which I can reach using ACPI throttling.
>
> but throttling doesn't save you anything.
Do you have any idea of the actual power savings in relation to
frequency scaling and sleep states? E.g., stepping down from 1.6Ghz to
800Mhz will save a lot (50%?), but how much is saved by using C3
state. More interesting, how much savings are lost by not being able
to use C3 state?
-- Johan
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next prev parent reply other threads:[~2005-01-01 10:50 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-28 20:32 Centrino speedstep Johan Vromans
[not found] ` <m2zmzyw4e7.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-28 21:26 ` Dominik Brodowski
[not found] ` <20041228212653.GA8436-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-29 18:18 ` Bruno Ducrot
[not found] ` <20041229181834.GA19199-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>
2004-12-29 20:05 ` Johan Vromans
[not found] ` <m21xd83m6b.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-30 10:57 ` Bruno Ducrot
2004-12-29 21:00 ` Dominik Brodowski
[not found] ` <20041229210020.GB12181-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-30 10:28 ` Bruno Ducrot
2004-12-30 16:36 ` Pedro Venda
[not found] ` <41D42E88.5080800-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org>
2004-12-30 17:08 ` Johan Vromans
[not found] ` <m2llbfk931.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-30 17:25 ` Bruno Ducrot
[not found] ` <20041230172508.GI19199-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>
2004-12-30 17:29 ` Pedro Venda
2004-12-30 17:27 ` Pedro Venda
[not found] ` <16852.15668.315630.700537@phoenix.squirrel.nl>
[not found] ` <16852.15668.315630.700537-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-31 1:25 ` Pedro Venda
[not found] ` <41D4AA9F.7080200-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org>
2004-12-31 8:25 ` Dominik Brodowski
[not found] ` <20041231082524.GA8312-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2005-01-01 10:50 ` Johan Vromans [this message]
[not found] ` <m2652hh17w.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2005-01-02 11:08 ` Dominik Brodowski
[not found] ` <20050102110826.GA14862-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2005-01-02 13:46 ` Karol Kozimor
[not found] ` <20050102134626.GA25417-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org>
2005-01-02 14:23 ` Dominik Brodowski
2005-01-06 10:37 ` Fred Labrosse
[not found] ` <16861.5376.560582.314813-4CLdheC3Iye1Qrn1Bg8BZw@public.gmane.org>
2005-01-06 16:14 ` Dominik Brodowski
[not found] ` <20050106161440.GD10011-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2005-01-07 10:20 ` Fred Labrosse
[not found] ` <16862.25182.567350.575532-4CLdheC3Iye1Qrn1Bg8BZw@public.gmane.org>
2005-01-07 10:50 ` Dominik Brodowski
[not found] ` <20050107105045.GA17839-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2005-01-07 11:05 ` Fred Labrosse
[not found] ` <16862.27881.864389.196313-4CLdheC3Iye1Qrn1Bg8BZw@public.gmane.org>
2005-01-07 13:30 ` Bruno Ducrot
[not found] ` <20050107133022.GM19199-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>
2005-01-08 1:05 ` Karol Kozimor
[not found] ` <20050108010509.GA12131-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org>
2005-01-10 13:26 ` Bruno Ducrot
[not found] ` <20050110132603.GN19199-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>
2005-01-10 16:19 ` Karol Kozimor
2005-01-07 23:49 ` Nate Lawson
2004-12-31 9:31 ` Johan Vromans
2004-12-31 9:41 ` Johan Vromans
2004-12-31 10:43 ` Johan Vromans
[not found] ` <16853.11589.510743.384997-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-31 14:12 ` Pedro Venda
2004-12-31 14:15 ` Johan Vromans
2004-12-31 12:40 ` Johan Vromans
[not found] ` <16853.18628.255436.926578-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-31 14:11 ` Pedro Venda
2004-12-29 18:49 ` Johan Vromans
[not found] ` <m2vfalc53k.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-29 19:40 ` Ultrakorne
[not found] ` <41D30842.4040204-XtQPfPCVGG7srOwW+9ziJQ@public.gmane.org>
2004-12-29 20:59 ` Dominik Brodowski
[not found] ` <20041229205905.GA12181-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-29 21:33 ` Johan Vromans
[not found] ` <m2sm5o23ix.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-29 21:46 ` Dominik Brodowski
[not found] ` <20041229214629.GA21054-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-29 23:26 ` Johan Vromans
[not found] ` <m24qi48z4q.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-30 7:42 ` Dominik Brodowski
[not found] ` <20041230074241.GB8464-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-30 9:32 ` Johan Vromans
[not found] ` <m2is6kuo63.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-30 10:30 ` Dominik Brodowski
[not found] ` <20041230103003.GA8206-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-30 10:51 ` Johan Vromans
[not found] ` <m2oegcdpo2.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2004-12-30 13:17 ` Dominik Brodowski
2004-12-30 11:07 ` Bruno Ducrot
[not found] ` <20041230110723.GD19199-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>
2004-12-30 13:19 ` Dominik Brodowski
2005-01-02 17:59 ` ultrakorne
[not found] ` <41D8366F.1040305-XtQPfPCVGG7srOwW+9ziJQ@public.gmane.org>
2005-01-02 19:26 ` Johan Vromans
2005-01-09 22:04 ` Johan Vromans
[not found] ` <m21xcumf8m.fsf-KjnUIgV0B0bak1Ioo/c9IoRWq/SkRNHw@public.gmane.org>
2005-01-09 22:52 ` Dominik Brodowski
2005-01-04 2:28 ` ultrakorne
2004-12-29 10:59 ` Bruno Ducrot
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