Visualizing Async Rust: Concurrency vs. Parallelism

This article uses visualization to delve into the concurrency and parallelism features of Rust's async runtime, Tokio. The author cleverly uses sine wave plots to intuitively demonstrate the execution order and CPU usage of different asynchronous tasks. Experiments show that CPU-bound tasks block other asynchronous operations, while Tokio's `tokio::spawn` and `tokio::task::spawn_blocking` effectively utilize multi-core resources to improve performance. The article concludes by summarizing Tokio's task scheduling strategy and methods for handling CPU-bound tasks, making it an excellent, clear, and visually rich tutorial.