Processor Power Usage
Two microbenchmarks
- busy wait for 5 seconds
- 300 iterations of add loop
-
Power consumption
- processor, 42% to 50%
- memory, RTC, ...
-
Addition loop running at 59 MHz
- 3.5x longer, 0.35x power
- 20% more energy
- must measure energy too!
busy wait
add loop
speed (MHz)
watts