perf_motor

perf_motor.cpp

#include <iostream>
#include <chrono>

#include "ev3dev.h"

int main() {
    typedef std::chrono::high_resolution_clock clock;

    const int n = 1000;

    ev3dev::motor m("outA");
    std::cout << m.driver_name() << ", " << m.port_name() << std::endl;

    long sum = 0;
    auto tic = clock::now();
    for(int i = 0; i < n; ++i) sum += m.position();
    auto toc = clock::now();

    std::cout
        << n << " readings in "
        << std::chrono::duration_cast<std::chrono::microseconds>(toc - tic).count()
        << " us" << std::endl;
}

perf_motor.py

#!/usr/bin/python

from time import time
from ev3dev import *

m = motor('outA')

print("%s, %s" % (m.driver_name, m.port_name))

n = 1000
sum = 0

tic = time()
for i in xrange(n): sum += m.position
toc = time()

print("%d readings in %f seconds" % (n, toc - tic))

perf_motor_pp.py

#!/usr/bin/python

from time import time
from ev3dev_pp import * # ev3dev_pp is pure python ev3dev bindings

m = Motor('outA')

print("%s, %s" % (m.driver_name, m.port_name))

n = 1000
sum = 0

tic = time()
for i in xrange(n): sum += m.position
toc = time()

print("%d readings in %f seconds" % (n, toc - tic))