Version: 0.0.10.0.20.0.30.0.40.0.50.1.00.1.10.1.20.1.30.1.40.1.50.1.6
var now = Date.now();
console.log('[child] child process start!');
setInterval(function () {
var interval = Date.now() - now;
console.log('[child] Timer finished, time consuming: ' + interval);
}, 50);