83 lines
2 KiB
JavaScript
83 lines
2 KiB
JavaScript
'use strict';
|
|
|
|
// Benchmark comparing performance of event emit for many listeners
|
|
// To run it, do following in memoizee package path:
|
|
//
|
|
// $ npm install eventemitter2 signals
|
|
// $ node benchmark/many-on.js
|
|
|
|
var forEach = require('es5-ext/object/for-each')
|
|
, pad = require('es5-ext/string/#/pad')
|
|
|
|
, now = Date.now
|
|
|
|
, time, count = 1000000, i, data = {}
|
|
, ee, native, ee2, signals, a = {}, b = {};
|
|
|
|
ee = (function () {
|
|
var ee = require('../')();
|
|
ee.on('test', function () { return arguments; });
|
|
ee.on('test', function () { return arguments; });
|
|
return ee.on('test', function () { return arguments; });
|
|
}());
|
|
|
|
native = (function () {
|
|
var ee = require('events');
|
|
ee = new ee.EventEmitter();
|
|
ee.on('test', function () { return arguments; });
|
|
ee.on('test', function () { return arguments; });
|
|
return ee.on('test', function () { return arguments; });
|
|
}());
|
|
|
|
ee2 = (function () {
|
|
var ee = require('eventemitter2');
|
|
ee = new ee.EventEmitter2();
|
|
ee.on('test', function () { return arguments; });
|
|
ee.on('test', function () { return arguments; });
|
|
return ee.on('test', function () { return arguments; });
|
|
}());
|
|
|
|
signals = (function () {
|
|
var Signal = require('signals')
|
|
, ee = { test: new Signal() };
|
|
ee.test.add(function () { return arguments; });
|
|
ee.test.add(function () { return arguments; });
|
|
ee.test.add(function () { return arguments; });
|
|
return ee;
|
|
}());
|
|
|
|
console.log("Emit for 3 listeners", "x" + count + ":\n");
|
|
|
|
i = count;
|
|
time = now();
|
|
while (i--) {
|
|
ee.emit('test', a, b);
|
|
}
|
|
data["event-emitter (this implementation)"] = now() - time;
|
|
|
|
i = count;
|
|
time = now();
|
|
while (i--) {
|
|
native.emit('test', a, b);
|
|
}
|
|
data["EventEmitter (Node.js native)"] = now() - time;
|
|
|
|
i = count;
|
|
time = now();
|
|
while (i--) {
|
|
ee2.emit('test', a, b);
|
|
}
|
|
data.EventEmitter2 = now() - time;
|
|
|
|
i = count;
|
|
time = now();
|
|
while (i--) {
|
|
signals.test.dispatch(a, b);
|
|
}
|
|
data.Signals = now() - time;
|
|
|
|
forEach(data, function (value, name, obj, index) {
|
|
console.log(index + 1 + ":", pad.call(value, " ", 5), name);
|
|
}, null, function (a, b) {
|
|
return this[a] - this[b];
|
|
});
|