hwmon: (fam15h_power) Introduce a cpu accumulated power reporting algorithm
This patch introduces an algorithm that computes the average power by
reading a delta value of “core power accumulator” register during
measurement interval, and then dividing delta value by the length of
the time interval.
User is able to use power1_average entry to measure the processor power
consumption and power1_average_interval entry to set the interval.
A simple example:
ray@hr-ub:~/tip$ sensors
fam15h_power-pci-00c4
Adapter: PCI adapter
power1: 19.58 mW (avg = 2.55 mW, interval = 0.01 s)
(crit = 15.00 W)
...
The result is current average processor power consumption in 10
millisecond. The unit of the result is uWatt.
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
1 file changed