From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Adrian Bunk <bunk@kernel.org>
Cc: Arjan van de Ven <arjan@infradead.org>,
S K <nospamnoham@gmail.com>, Zhao Yakui <yakui.zhao@intel.com>,
Thomas Renninger <trenn@suse.de>,
Alan Jenkins <alan-jenkins@tuffmail.co.uk>,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org
Subject: Re: cpufreq doesn't seem to work in Intel Q9300
Date: Mon, 11 Aug 2008 15:07:34 +0100 [thread overview]
Message-ID: <20080811140734.GA27959@srcf.ucam.org> (raw)
In-Reply-To: <20080811140206.GB3338@cs181140183.pp.htv.fi>
On Mon, Aug 11, 2008 at 05:02:06PM +0300, Adrian Bunk wrote:
> This statement is only true for HPC environments and when you measure
> Watts per work done.
>
> But if you have some desktop or server with a load that is determined by
> when it gets used, then p4-clockmod can actually save energy when the
> computer is not under high load or even idle.
>
> Or do I miss anything?
On modern hardware, the C states will win you more than downclocking the
processor would.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2008-08-11 14:07 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-03 10:00 cpufreq doesn't seem to work in Intel Q9300 S K
2008-08-03 10:31 ` none
2008-08-04 5:06 ` S K
2008-08-07 9:35 ` S K
2008-08-07 19:24 ` Alan Jenkins
2008-08-08 1:32 ` Zhao Yakui
2008-08-08 4:53 ` S K
2008-08-08 8:41 ` Alan Jenkins
2008-08-08 10:10 ` S K
2008-08-08 10:43 ` S K
2008-08-08 12:30 ` Thomas Renninger
2008-08-08 18:23 ` S K
2008-08-09 18:59 ` Thomas Renninger
2008-08-09 18:59 ` Thomas Renninger
2008-08-09 19:30 ` Thomas Renninger
2008-08-09 19:30 ` Thomas Renninger
2008-08-10 8:28 ` S K
2008-08-11 1:33 ` Zhao Yakui
2008-08-11 4:44 ` S K
2008-08-11 5:24 ` Zhao Yakui
2008-08-11 5:24 ` S K
2008-08-11 7:00 ` Alan Cox
2008-08-11 10:55 ` Andi Kleen
2008-08-11 13:15 ` S K
2008-08-11 13:23 ` Andi Kleen
2008-08-12 5:43 ` S K
2008-08-11 11:22 ` Arjan van de Ven
2008-08-11 11:38 ` Alexey Dobriyan
2008-08-11 11:53 ` Matthew Garrett
2008-08-11 14:02 ` Adrian Bunk
2008-08-11 14:07 ` Matthew Garrett [this message]
2008-08-11 14:12 ` Arjan van de Ven
2008-08-11 14:11 ` Arjan van de Ven
2008-08-11 16:03 ` Adrian Bunk
2008-08-11 16:20 ` Arjan van de Ven
2008-08-11 16:28 ` Adrian Bunk
2008-08-11 16:44 ` Arjan van de Ven
2008-08-12 19:27 ` Adrian Bunk
2008-08-11 19:33 ` Dominik Brodowski
2008-08-11 23:58 ` Arjan van de Ven
2008-08-12 19:03 ` Dominik Brodowski
2008-08-12 19:59 ` Arjan van de Ven
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