What is the difference between thread pools and threads in C++?

What is the difference between thread pools and threads in C++?

In C++, a thread is a single sequence of execution, while a thread pool is a collection of pre-initialized threads that can be reused for executing tasks. This helps manage resources more efficiently.

Why would I use a thread pool instead of creating new threads?

Using a thread pool reduces the overhead of thread creation and destruction, leading to better performance, especially in applications with many short-lived tasks.

Can you give me an example of how to implement a thread pool in C++?

Sure! You can use the C++11 <thread> library along with a queue to manage tasks. You create a fixed number of threads that wait for tasks to be added to the queue and execute them.

What are the potential downsides of using a thread pool?

Some downsides include complexity in implementation, potential for thread contention, and the risk of underutilization if the pool size is not well-tuned.