Arduino Benchmark

Benchmark of internal time precision

Model	range of 60 sec delay() call	avg. duration of 60 sec delay() call
Arduino 101	59998-59999	59998,5625
Arduino Mega 2560 (clone)	59989-59994	59991,75

Benchmark of digital sensor read

Benchmark of analog sensor read

Benchmark of pi calculation

Model	size of double	duration (internal time used)	pi value
Arduino 101	8	3879 ms.	3.1415936536
Arduino Mega 2560 (clone)

Test programs: Python program for measuring response time

import time
import serial
def millis():
    return int(round(time.time() * 1000))
ser = serial.Serial('/dev/ttyACM0', 9600)
while True:
	start = millis()
	data= "recv: "+ser.readline()	
	end = millis()
	print (end-start)
	print data

Time precision benchmark

void setup() {
  Serial.begin(9600);
}

void loop() { 

  while (true) {
    unsigned long start = millis();
    delay(60000);
    unsigned elap = millis() - start;
    Serial.println(elap);
  }
}