Fig. 11.1.7 Queue time can become a factor.There are two primary ways that queue time can build inside a computer—either a single
program takes a long time to execute or the rate at which transactions arrive at the queue
exceeds the average execution time.
In any case in many computers, it is queue time that significantly causes slowdowns in
processing.
Another way of looking at the phenomenon of performance is in terms of the number of
I/Os being done by a transaction.
Fig. 11.1.8 shows two different kinds of transactions.
Chapter 11.1: Operational Analytics: Response Time