| 1 | const Benchmark = require('benchmark') |
| 2 | const { LIST_FORMATTER } = require('./benchmark-utils') |
| 3 | |
| 4 | const suite = new Benchmark.Suite() |
| 5 | |
| 6 | const timeout = 2000 |
| 7 | |
| 8 | /** |
| 9 | * @param timeoutMs |
| 10 | */ |
| 11 | function dummyTimeoutBusyWait (timeoutMs) { |
| 12 | const timeoutDateMs = Date.now() + timeoutMs |
| 13 | do {} while (Date.now() < timeoutDateMs) |
| 14 | } |
| 15 | |
| 16 | /** |
| 17 | * @param timeoutMs |
| 18 | * @param delayMs |
| 19 | */ |
| 20 | function setIntervalTimeoutBusyWait (timeoutMs, delayMs = 200) { |
| 21 | const tries = Math.round(timeoutMs / delayMs) |
| 22 | let count = 0 |
| 23 | const triesSetInterval = setInterval(() => { |
| 24 | count++ |
| 25 | if (count === tries) { |
| 26 | clearInterval(triesSetInterval) |
| 27 | } |
| 28 | }, delayMs) |
| 29 | } |
| 30 | |
| 31 | suite |
| 32 | .add('dummyTimeoutBusyWait', function () { |
| 33 | dummyTimeoutBusyWait(timeout) |
| 34 | }) |
| 35 | .add('setIntervalTimeoutBusyWait', function () { |
| 36 | setIntervalTimeoutBusyWait(timeout) |
| 37 | }) |
| 38 | .on('cycle', function (event) { |
| 39 | console.log(event.target.toString()) |
| 40 | }) |
| 41 | .on('complete', function () { |
| 42 | console.log( |
| 43 | 'Fastest is ' + LIST_FORMATTER.format(this.filter('fastest').map('name')) |
| 44 | ) |
| 45 | // eslint-disable-next-line no-process-exit |
| 46 | process.exit() |
| 47 | }) |
| 48 | .run() |