How Does Async/Await Impact Task Scheduling in Fire-and-Forget Scenarios?

Exploring Async/Await's Influence on Fire-and-Forget Task Scheduling

This analysis examines the intricacies of async/await, particularly within fire-and-forget scenarios. The accompanying code (not shown here) illustrates how diverse approaches impact task scheduling and execution.

Fire-and-Forget: Simple Neglect

The first example (#1) showcases a basic fire-and-forget operation. The Callee method executes asynchronously without the caller waiting for its conclusion.

Waiting for Completion

Conversely, the second example (#2) demonstrates the conventional approach of awaiting Callee's result. The caller pauses execution until the asynchronous operation finishes.

Task.Run vs. Async Invocation: A Comparison

Examples #3 and #5 compare directly invoking Callee via Task.Run with using an async lambda within a delegate. While syntactically different, both launch Callee on a thread pool thread, operating in a fire-and-forget manner.

Async Lambdas and Thread Pool Threads

Examples #4 and #6 utilize Task.Run with an async lambda. The lambda runs concurrently on a thread pool thread. However, the caller awaits the lambda's completion, ensuring subsequent operations don't start until Callee completes.

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