tra-analysis/website/functions/node_modules/@protobufjs/float/bench/suite.js

47 lines
1.4 KiB
JavaScript
Raw Normal View History

2019-01-06 19:14:45 +00:00
"use strict";
module.exports = newSuite;
var benchmark = require("benchmark"),
chalk = require("chalk");
var padSize = 27;
function newSuite(name) {
var benches = [];
return new benchmark.Suite(name)
.on("add", function(event) {
benches.push(event.target);
})
.on("start", function() {
process.stdout.write("benchmarking " + name + " performance ...\n\n");
})
.on("cycle", function(event) {
process.stdout.write(String(event.target) + "\n");
})
.on("complete", function() {
if (benches.length > 1) {
var fastest = this.filter("fastest"), // eslint-disable-line no-invalid-this
fastestHz = getHz(fastest[0]);
process.stdout.write("\n" + chalk.white(pad(fastest[0].name, padSize)) + " was " + chalk.green("fastest") + "\n");
benches.forEach(function(bench) {
if (fastest.indexOf(bench) === 0)
return;
var hz = hz = getHz(bench);
var percent = (1 - hz / fastestHz) * 100;
process.stdout.write(chalk.white(pad(bench.name, padSize)) + " was " + chalk.red(percent.toFixed(1) + "% slower") + "\n");
});
}
process.stdout.write("\n");
});
}
function getHz(bench) {
return 1 / (bench.stats.mean + bench.stats.moe);
}
function pad(str, len, l) {
while (str.length < len)
str = l ? str + " " : " " + str;
return str;
}