unswitch for loop (http://jsbench.github.io/#65b03a6ddd3157f98e5a444dbce62874) #jsbench #jsperf
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"/> | |
<title>unswitch for loop</title> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script> | |
<script src="./suite.js"></script> | |
</head> | |
<body> | |
<h1>Open the console to view the results</h1> | |
<h2><code>cmd + alt + j</code> or <code>ctrl + alt + j</code></h2> | |
</body> | |
</html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
"use strict"; | |
(function (factory) { | |
if (typeof Benchmark !== "undefined") { | |
factory(Benchmark); | |
} else { | |
factory(require("benchmark")); | |
} | |
})(function (Benchmark) { | |
var suite = new Benchmark.Suite; | |
Benchmark.prototype.setup = function () { | |
const input_list = Array.from({length: 10000}) | |
.map(_ => Array.from({length: (Math.random()*10)|0}).map((_, idx) => idx*10)) | |
}; | |
suite.add("unswitch yes", function () { | |
// unswitch yes | |
let c = 0; | |
const cond = (Math.random()*3)|0; | |
if (cond == 3) { | |
for (let i = 0; i < input_list.length; i++) { | |
c += 1; | |
c += 2; | |
c += 3; | |
} | |
} | |
else | |
if (cond == 2) { | |
for (let i = 0; i < input_list.length; i++) { | |
c += 1; | |
c += 2; | |
} | |
} | |
else | |
if (cond == 1) { | |
for (let i = 0; i < input_list.length; i++) { | |
c += 1; | |
} | |
} | |
}); | |
suite.add("unswitch no", function () { | |
// unswitch no | |
let c = 0; | |
const cond = (Math.random()*3)|0; | |
for (let i = 0; i < input_list.length; i++) { | |
if (cond == 3) { | |
c += 1; | |
c += 2; | |
c += 3; | |
} | |
else | |
if (cond == 2) { | |
c += 1; | |
c += 2; | |
} | |
else | |
if (cond == 1) { | |
c += 1; | |
} | |
} | |
}); | |
suite.add("unswitch via function", function () { | |
// unswitch via function | |
// unswitch no | |
let c = 0; | |
const cond = (Math.random()*3)|0; | |
function f(cond){ | |
if (cond == 3) { | |
c += 1; | |
c += 2; | |
c += 3; | |
} | |
else | |
if (cond == 2) { | |
c += 1; | |
c += 2; | |
} | |
else | |
if (cond == 1) { | |
c += 1; | |
} | |
} | |
for (let i = 0; i < input_list.length; i++) { | |
f(cond); | |
} | |
}); | |
suite.on("cycle", function (evt) { | |
console.log(" - " + evt.target); | |
}); | |
suite.on("complete", function (evt) { | |
console.log(new Array(30).join("-")); | |
var results = evt.currentTarget.sort(function (a, b) { | |
return b.hz - a.hz; | |
}); | |
results.forEach(function (item) { | |
console.log((idx + 1) + ". " + item); | |
}); | |
}); | |
console.log("unswitch for loop"); | |
console.log(new Array(30).join("-")); | |
suite.run(); | |
}); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment