questions about DVFS in saving energy
Tomas L. Byrnes
tomb at byrneit.net
Wed May 13 14:31:24 CDT 2009
From: Kai Chen [mailto:kch670 at eecs.northwestern.edu]
Sent: Wednesday, May 13, 2009 12:25 PM
To: nanog at merit.edu
Subject: questions about DVFS in saving energy
Hi, could anyone here have some idea of the following questions about
Dynamic Voltage/Frequency Scaling techniques used for energy efficiency,
or please give a pointer that I can trace,
1) how many servers in the market support this technique?
2) how many voltages/frequencies can the servers support?
3) What's the transition time and cost (power) between these
My experience with the AMD HE CPUs has been that the scaling breaks
Win2K3, and any virtualized environments.
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