Granularity in rust

granularity.rs

// Coarse: one connection handles everything sequentially
fn handle_all(requests: Vec<Request>) {
    for req in requests {
        process(req);  // Other threads sit idle
    }
}

// Fine: each request is a separate task
for req in requests {
    tokio::spawn(async move {
        process(req).await;
    });
}
// Overhead: task creation, scheduling, memory per task