Documentation/hwmon/fam15h_power.rst

16   - BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors
17   - BIOS and Kernel Developer's Guide (BKDG) For AMD Family 16h Processors
18   - AMD64 Architecture Programmer's Manual Volume 2: System Programming
23 -----------
25 1) Processor TDP (Thermal design power)
27 Given a fixed frequency and voltage, the power consumption of a
28 processor varies based on the workload being executed. Derated power
29 is the power consumed when running a specific application. Thermal
30 design power (TDP) is an example of derated power.
32 This driver permits reading of registers providing power information
35 For AMD Family 15h and 16h processors the following power values can
40     Specifies in watts the maximum amount of power
44     Specifies in watts the maximum amount of power
47     Specifies in watts the current amount of power being
55 On multi-node processors the calculated value is for the entire
57 attributes only for internal node0 of a multi-node processor.
59 2) Accumulated Power Mechanism
62 calculate the average power consumed by a processor during a
63 measurement interval Tm. The feature of accumulated power mechanism is
67 	compute unit power accumulator sample period
76 	the ratio of compute unit power accumulator sample period to the
80 	max compute unit accumulated power which is indicated by
84 	compute unit accumulated power which is indicated by
91 	CPU average power
110 v. Calculate the average power consumption for a compute unit over
111    time period (y-x). Unit of result is uWatt::
114 		Jdelta = (Jy + Jmax) - Jx
116 		Jdelta = Jy - Jx
117 	PwrCPUave = N * Jdelta * 1000 / (Ty - Tx)
128 chip `fam15h_power-*`
131 Then save it with "sensors -s".