Here are two simple programs testing the performance of my rpio library against popular alternatives which use the /sys interface (with the number of npm stars indicated for a rough idea of popularity).
This test is based on an example on the rpi-gpio page.
As modules which uses /sys depend upon asynchronous behaviour they require callbacks to ensure that the next operation starts only when the previous one has completed.
| //refactor code | |
| var findWhere = ['a.ewEdit', 'a.ewView']; | |
| var isBinded = false; | |
| var findIndex = 0; | |
| while(!isBinded && findIndex < findWhere.length){ | |
| findIndex++; | |
| /* | |
| * Copyright (C) 2006 The Android Open Source Project | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the "License"); | |
| * you may not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software |
| var map = new google.maps.Map(document.getElementById('map'), { | |
| zoom: 10, | |
| center: new google.maps.LatLng(-33.92, 151.25), | |
| mapTypeId: google.maps.MapTypeId.ROADMAP | |
| }); | |
| var template = [ | |
| '<?xml version="1.0"?>', | |
| '<svg width="26px" height="26px" viewBox="0 0 100 100" version="1.1" xmlns="http://www.w3.org/2000/svg">', | |
| '<circle stroke="#222" fill="{{ color }}" cx="50" cy="50" r="35"/>', |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>save scroll state</title> | |
| <style type="text/css" media="screen"> | |
| .single-post{ | |
| padding: 20px; | |
| margin: 20px 0; | |
| width: 300px; | |
| height: 400px; |
| var storage = {"name":"hoang-anh", "rong":"10m", "dai":"20m"}; | |
| if(typeof Object.create != 'function'){ | |
| Object.create = function(object){ | |
| var f = function(){}; | |
| f.prototype = object; | |
| return new f(); | |
| }; | |
| } | |
| var storage_1 = Object.create(storage); |
| function print_r(theObj, div){ | |
| div = typeof div == 'undefined'? $('body') : div; | |
| if(theObj.constructor == Array || theObj.constructor == Object){ | |
| div.append("<ul>") | |
| for(var p in theObj){ | |
| if(theObj[p].constructor == Array || theObj[p].constructor == Object){ | |
| div.append("<li>["+p+"] => "+typeof(theObj)+"</li>"); | |
| div.append("<ul>") | |
| print_r(theObj[p]); | |
| div.append("</ul>") |