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Digital Voltage Scaling (PowerTune)

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Digital Voltage Scaling (PowerTune)

Subject: Digital Voltage Scaling (PowerTune)
From: Drew Varner <email@hidden>
Date: Thu, 30 Dec 2004 19:06:34 -0500

Hey Folks,

I am interested in exploiting the PowerTune capabilities of the new G5 in Xserve, iMacs, etc.

Linux provides access to these capabilities via a kernel module (cpufreq).

I have Googled the topic and I haven't found any Digital Voltage Scaling (DVS) implementations for Darwin/OS X.

I'd like to know if anyone is interested in working on it. My research group (http://scape.cse.sc.edu) has done work work with the Linux implementations of DVS.

I don't know if this is something that belongs in the kernel as a driver or as a command line utility of some sort. I'd really like to see a Darwin implementation that parallels the cpufreq implementation (they use sysfs for a userspace interface) for cross-platform compatibility.

Thanks,
Drew

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