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The Linux kernel configuration item CONFIG_X86_AMD_FREQ_SENSITIVITY
:
CONFIG_CPU_FREQ_GOV_ONDEMAND && CONFIG_X86_ACPI_CPUFREQ && CONFIG_CPU_SUP_AMD
amd_freq_sensitivity
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.
Raw data from LKDDb:
lkddb module amd_freq_sensitivity CONFIG_X86_AMD_FREQ_SENSITIVITY : drivers/cpufreq/Kconfig.x86 : "AMD frequency sensitivity feedback powersave bias" # in 3.10–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.13
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Automatically generated (in year 2025). See also LKDDb sources on GitLab