count[i] += count[i - 1];
It does not aim to provide virtualization.
，这一点在同城约会中也有详细论述
Овечкин продлил безголевую серию в составе Вашингтона09:40
Not all streaming workloads involve I/O. When your source is in-memory and your transforms are pure functions, async machinery adds overhead without benefit. You're paying for coordination of "waiting" that adds no benefit.