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CONFIG_X86_AMD_FREQ_SENSITIVITY: AMD frequency sensitivity feedback powersave bias

General informations

The Linux kernel configuration item CONFIG_X86_AMD_FREQ_SENSITIVITY:

Help text

This adds AMD-specific powersave bias function to the ondemand governor, which allows it to make more power-conscious frequency change decisions based on feedback from hardware (available on AMD Family 16h and above).

Hardware feedback tells software how "sensitive" to frequency changes the CPUs' workloads are. CPU-bound workloads will be more sensitive -- they will perform better as frequency increases. Memory/IO-bound workloads will be less sensitive -- they will not necessarily perform better as frequency increases.

If in doubt, say N.

Hardware

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