What is faster and in which tasks? Coroutines, RxJava, Executor?

The post compares the performance of coroutines, RxJava, and Executor in various multithreading scenarios using Android tools. It evaluates different test cases, including single threads, CPU-bound tasks, and I/O-bound tasks. The results show that for simple tasks, direct invocation is the most efficient, while Executors and RxJava perform better for more complex operations. The author concludes that for I/O operations, the choice between frameworks based on performance is less critical, and emphasizes ease of use and other factors instead. They recommend using direct invocation for simple tasks and coroutines with Dispatchers.IO for more complex operations.