What is Pools?

In computer science, particularly in operating systems and concurrent programming, a "pool" refers to a collection of resources that are pre-allocated and ready for use. This pattern is used to avoid the overhead of repeatedly allocating and deallocating resources, which can be computationally expensive. Common examples include thread pools (a collection of pre-created threads ready to execute tasks) and connection pools (a collection of database connections ready to be used). Pools improve performance by reducing latency and resource allocation overhead. They can also aid in resource management by limiting the number of resources that can be used concurrently.