ISRO CSE 2020 | Question: 28

Question

Dispatch latency is defined as

• A. the speed of dispatching a process from running to the ready state
• B. the time of dispatching a process from running to ready state and keeping the CPU idle
• C. the time to stop one process and start running another one
• D. none of these

Comments

option c is correct becouse its context switching which is done by Dispatch

 

Answer 1

$\underline{\textbf{Answer}:}\Rightarrow\;\mathbf{c.}$

$\underline{\textbf{Explanation}:}\Rightarrow$

It is defined as the amount of time needed for a system to acknowledge a request for a process to begin operation.

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https://docs.oracle.com/cd/E19455-01/806-4750/chap7rt-21297/index.html

Answer 2

The correct answer is:

The time to stop one process and start running another one

Dispatch can done by dispatcher So the time taken by dispatcher is known as dispatch latency. The dispatcher do context switching. 

Dispatch latency refers to the time taken by the operating system to switch from one process to another. It includes the time to save the state of the old process, load the state of the new process, and perform other necessary bookkeeping.