What is the name of the area responsible for managing resource usage in the system?

The area responsible for managing resource usage in the system is called the Resource Manager.

In the context of operating systems and DevOps, this can be:

• Memory Manager — manages the allocation and freeing of memory.
• Process Manager — controls the execution of processes and their resources.
• Container or orchestration manager (e.g., Kubernetes) — manages resources in a cluster.

More generally, it is a subsystem responsible for efficient distribution, monitoring, and freeing of resources (CPU, memory, disk space, network) to ensure the stable operation of the system.