CFQ I/O Scheduler

The CFQ (Completely Fair Queuing) I/O scheduler manages how a computer's storage system handles multiple read and write requests. It aims to distribute access fairly among all processes, preventing any one program from dominating the disk, which helps improve overall performance and responsiveness. CFQ organizes requests into queues and processes them in a balanced way, ensuring that each program gets timely access to the storage device without unnecessary delays. It’s like a well-structured traffic controller for data requests, keeping disk activity efficient and equitable.