How do C++ async libraries compare in terms of performance?

How do C++ async libraries compare in terms of performance?

C++ async libraries like Boost.Asio, C++11's std::async, and others have different performance characteristics. Boost.Asio is known for its high performance in network programming, while std::async is simpler but may introduce overhead due to thread management.

What factors affect the performance of these libraries?

Key factors include the underlying implementation, the nature of the tasks (CPU-bound vs I/O-bound), and how well the library manages threads and resources.

Can you give examples of when to use each library?

Sure! Use Boost.Asio for high-performance network applications, std::async for simpler parallel tasks, and other libraries like libuv for cross-platform asynchronous I/O.

Are there any benchmarks available for these libraries?

Yes, there are several benchmarks available online that compare the performance of these libraries under various conditions. It's best to check recent studies or GitHub repositories for the latest results.