ELI5: Explain Like I'm 5

Thread pool pattern

Have you ever had to do a lot of tasks all at once, but didn't have enough hands to do them all? That's where a thread pool comes in!

Think of a thread pool like a group of helpers who are all ready to do tasks whenever you need them. In this case, the helpers are called "threads". They are like little workers that can each work on a separate task at the same time.

When you give the thread pool a task to do, it assigns one of the threads to work on it. If there are more tasks than threads available, the extra tasks have to wait until a thread becomes available again.

This is very helpful because it saves time and makes sure that all tasks get completed. If you tried to do all the tasks by yourself, it would take a very long time and you might not have enough energy to do them all. But with a thread pool, the work gets divided up and finished quicker.

So, a thread pool is really just a group of threads that can work together to complete tasks more efficiently.