Power Consumption & Efficiency Of The Linux Kernel For The Last Three Years
The power use when running FIO disk tests across the span of the last 19 major kernel series.
The past few kernels were a bit rough on the performance-per-Watt but with Linux 4.9 it's back near the top.
With sequential writes, the power efficiency is lower on the newer kernels than Linux 3.11~3.14.