If the value of time quantum is too short then the large number of context switching (hold the process after given time quantum is finish) will happen & hence:
1. It will increase the average waiting time
2.It will increase the turnaround time
3.It will lower the Throughout.
The time span between when a process is submitted and when it is finished is known as turnaround time (TAT). It can also be viewed as the total of the times spent waiting to execute on the CPU, waiting to enter memory, or waiting in the ready queue. Turnaround time is a crucial metric for assessing an operating system's scheduling algorithms.
Lead time and cycle time are similar ideas, while turnaround time is an opposite idea. Units of time are used to express turnaround time for various system states and occasionally for particular algorithms. Different applications and programming languages require different amounts of time to complete.
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