X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=busy-wait.js;h=66d58967ed9e86c0cf00b61708379dc46f2e0be4;hb=05a028289a08e96f12870f3c6c7df13d78f87c99;hp=4742018a698db86fb50aadb5656d42fde29d8f56;hpb=ed2968f2ee816cb47841f537bcbfb8590aa7bbb9;p=benchmarks-js.git diff --git a/busy-wait.js b/busy-wait.js index 4742018..66d5896 100644 --- a/busy-wait.js +++ b/busy-wait.js @@ -1,41 +1,78 @@ -const Benchmark = require('benchmark') -const { LIST_FORMATTER } = require('./benchmark-utils') - -const suite = new Benchmark.Suite() +const Benchmark = require('benny') +const { sleep } = require('./benchmark-utils') const timeout = 2000 +const interval = 1000 +/** + * @param timeoutMs + */ function dummyTimeoutBusyWait (timeoutMs) { - const timeoutDateMs = Date.now() + timeoutMs - do {} while (Date.now() < timeoutDateMs) + const timeoutTimestampMs = Date.now() + timeoutMs + // eslint-disable-next-line no-empty + do {} while (Date.now() < timeoutTimestampMs) +} + +/** + * @param timeoutMs + * @param intervalMs + */ +async function sleepTimeoutBusyWait (timeoutMs, intervalMs = interval) { + const timeoutTimestampMs = Date.now() + timeoutMs + do { + await sleep(intervalMs) + } while (Date.now() < timeoutTimestampMs) +} + +/** + * @param timeoutMs + * @param intervalMs + */ +async function divideAndConquerTimeoutBusyWait ( + timeoutMs, + intervalMs = interval +) { + const tries = Math.round(timeoutMs / intervalMs) + let count = 0 + do { + count++ + await sleep(intervalMs) + } while (count <= tries) } -function setIntervalTimeoutBusyWait (timeoutMs, delayMs = 200) { - const tries = Math.round(timeoutMs / delayMs) +/** + * @param timeoutMs + * @param intervalMs + */ +async function setIntervalTimeoutBusyWait (timeoutMs, intervalMs = interval) { + const tries = Math.round(timeoutMs / intervalMs) let count = 0 const triesSetInterval = setInterval(() => { count++ if (count === tries) { clearInterval(triesSetInterval) + return Promise.resolve() } - }, delayMs) + }, intervalMs) } -suite - .add('dummyTimeoutBusyWait', function () { +Benchmark.suite( + 'Busy wait', + Benchmark.add('dummyTimeoutBusyWait', () => { dummyTimeoutBusyWait(timeout) - }) - .add('setIntervalTimeoutBusyWait', function () { - setIntervalTimeoutBusyWait(timeout) - }) - .on('cycle', function (event) { - console.log(event.target.toString()) - }) - .on('complete', function () { - console.log( - 'Fastest is ' + LIST_FORMATTER.format(this.filter('fastest').map('name')) - ) - // eslint-disable-next-line no-process-exit - process.exit() - }) - .run() + }), + Benchmark.add('sleepTimeoutBusyWait', async () => { + await sleepTimeoutBusyWait(timeout) + }), + Benchmark.add('divideAndConquerTimeoutBusyWait', async () => { + await divideAndConquerTimeoutBusyWait(timeout) + }), + Benchmark.add('setIntervalTimeoutBusyWait', async () => { + await setIntervalTimeoutBusyWait(timeout) + }), + Benchmark.cycle(), + Benchmark.complete(), + Benchmark.save({ file: 'busy-wait', format: 'json', details: true }), + Benchmark.save({ file: 'busy-wait', format: 'chart.html', details: true }), + Benchmark.save({ file: 'busy-wait', format: 'table.html', details: true }) +)