MLFQ
Multi-Level Feedback Queue (MLFQ) is a CPU scheduling strategy used by computer operating systems to balance responsiveness for interactive tasks with overall system throughput. It organizes the ready jobs into multiple queues with different priorities and dynamically adjusts a process’s position based on its observed behavior.
Processes begin at the highest-priority queue. The scheduler always selects a job from the highest nonempty
To prevent starvation, aging increases the priority of waiting processes after some time, gradually moving them
Variants differ in the number of levels, quantum lengths, and promotion/demotion rules. The core idea is to
Usage and evaluation: MLFQ has been widely discussed in operating system literature and is used in some