AMD frequency sensitivity feedback powersave bias
modulename: amd_freq_sensitivity.ko
configname: CONFIG_X86_AMD_FREQ_SENSITIVITY
Linux Kernel Configuration
└─>Power management and ACPI options
└─>CPU Frequency scaling
└─>AMD frequency sensitivity feedback powersave bias
In linux kernel since version 3.1 (release Date: 2011-10-24)
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.
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.