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.
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Special methods______ ,________ and ______ customize attribute access through the dot access operator.
Fill in the blank(s) with the appropriate word(s).
The terms member access operator and dot operator are used synonymously.
Answer the following statement true (T) or false (F)
In what situation(s) should you use anidselector? What is the syntax of anidselector.
What will be an ideal response?
In a data flow diagram (DFD), a black hole is a process that has _____.
A. no input B. at least one output and one input, but the output obviously is insufficient to generate the input shown C. no output D. at least one input and one output, but the input obviously is insufficient to generate the output shown