4 ms·Edit: see comment below, misunderstood the specific case.by spullara 6y agoEdit: see comment below, misunderstood the specific case.bastawhiz 6y agoThis doesn't compare async to sync: in fact, `readFileSync` is also benchmarked here, and is slower than every async alternative. This compares `readFile` (async) with `promises.readFile` (also async).spullara 6y agoEven in that case, you are doing more work but 40% is excessive.