Benchmark Run Result for: async for vs promise all (setTimeout version)

async for vs promise all (setTimeout version)

Inspired by: https://www.measurethat.net/Benchmarks/Show/13019/0/async-for-vs-promiseall

Date tested: 3 years ago

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Safari/537.36 OPR/79.0.4143.50

Test name	Executions per second
asyncFor	296886.7 Ops/sec
asyncPromiseAll	35007.5 Ops/sec

Benchmark definition (click to collapse):

Script Preparation code:

function emptyTimeout(ms) {
    return new Promise((resolve, reject) =>
        setTimeout(() => resolve(), ms));
}

async function asyncFor() {
  for (let i = 50; i < 500; i += 50) {
    await emptyTimeout(i);
  }
}

async function asyncPromiseAll() {
  const promises = [];
  for (let i = 50; i < 500; i += 50) {
    promises.push(emptyTimeout(i));
  }
  await Promise.all(promises);
}

Tests:

asyncFor
asyncFor()
asyncPromiseAll
asyncPromiseAll()

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