// Copyright (C) 2013 Massachusetts Institute of Technology // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License version 2, // as published by the Free Software Foundation. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. /* * Timer for the interpeter and performance testing * Tim Mickel, July 2011 */ var Timer = function() { var trials = []; var last_trial = 0; var start_time = 0; }; Timer.prototype.time = function() { return Date.now(); }; Timer.prototype.start = function() { start_time = this.time(); }; Timer.prototype.stop = function() { end = this.time(); last_trial = end - start_time; trials.push(last_trial); }; Timer.prototype.count = function() { return trials.length; }; Timer.prototype.average = function() { sum = 0; for (i = 0; i < this.count(); i++) { sum += trials[i]; } return sum / this.count(); }; Timer.prototype.print = function(element) { text = "Trial: " + last_trial + "ms" + "
\nTrials: " + this.count() + ", Avg: " + this.average() + "ms"; if (element) { $(element).html(text); } else { console.log(text); } };