One criterion that influences the desirability of implementing disk scheduling is the disk scheduling mechanism’s runtime overhead.What factors contribute to this overhead?

What will be an ideal response?

For any scheduling method to be worthwhile, the overhead of scheduling must be outweighed
by the improvement in performance. Scheduling mechanisms require a certain
amount of memory to implement data structures that store disk requests. The mechanisms
require a certain amount of execution overhead to decide the next request to be serviced.
However, as processors become much faster than disk drives, computational delay tends to
have little impact on I/Operformance.