Thread Pools vs Async in C++11

What are the main differences between thread pools and async in C++11?

Thread pools manage a collection of threads for executing tasks, while async creates a new thread for each task.

When should I use thread pools instead of async?

Use thread pools for managing multiple tasks efficiently, especially when tasks are short-lived and frequent.

Can you give an example of using thread pools in C++11?

Sure! You can use std::async for async tasks, but for thread pools, consider using a library like Boost or implement your own.

What are the performance implications of each approach?

Thread pools can reduce overhead by reusing threads, while async may incur more overhead due to thread creation.