Thanks for the thorough article!
One area you haven't explored yet is how the EPP (Energy Performance Profile) of the Intel CPUs can affect the power consumption.
Here's how you can set the desired value:
Code:
sudo cpupower set --perf-bias X
With AMD finally adding similar functionality with the upcoming 'amd-pstate-epp' driver, exploring this area of the Linux kernel becomes ever more interesting.
Couple that with the rising energy costs, and I'm pretty sure quite a few companies would be interested in the results you publish...
(Personally, I've already switched to running all of my CPUs with the maximum energy efficiency setting applied, and running "sudo cpupower monitor" shows me that my chips are hitting the deepest sleep-states more often & for a longer period of time, even with the performance governor.)
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