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RE: AW: [Xen-devel] How to use Px/Cx for power saving?

To: "Carsten Schiers" <carsten@xxxxxxxxxx>, "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "Akio Takebe" <takebe_akio@xxxxxxxxxxxxxx>
From: "Langsdorf, Mark" <mark.langsdorf@xxxxxxx>
Date: Thu, 15 Jan 2009 11:20:13 -0600
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Yu, Ke" <ke.yu@xxxxxxxxx>
Delivery-date: Thu, 15 Jan 2009 09:20:48 -0800
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Thread-index: Acl2/5co41WnxEmhTsyZJeN2JfAL6QANc2Wg
Thread-topic: AW: [Xen-devel] How to use Px/Cx for power saving?

> Also, is acpi_cpufreq an alternative to e.g. powernow-k8 or 
> speedstep-centrino? 

It is for Intel parts, but AMD power management does not
quite follow the ACPI specification and acpi-cpufreq does
not support it.

For AMD parts, use powernow-k8.

-Mark Langsdorf
Operating System Research Center
AMD


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References:
- AW: AW: [Xen-devel] How to use Px/Cx for power saving?
  - From: Carsten Schiers

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