Exercise 6.12 Metrics for I/O performance may vary dramatically from application to application.

Where the number of transactions processed dominates performance in some situations, data throughput dominates in others. Explore I/O performance evaluation by answering the questions for the following applications.

a. Web Browsing

b. Sound Editing 6.12.1 [10] <6.7> For each application in the table, does I/O performance dominate system performance?
6.12.2 [10] <6.7> For each application in the table, is I/O performance best measured using raw data throughput?
6.12.3 [5] <6.7> For each application in the table, is I/O performance best measured using the number of transactions processed?
6.12.4 [5] <6.7> Is there a relationship between the performance measures from the previous two problems and choosing whether to use polling or interrupt-driven communication? What about the choice of using memory-mapped or commanddriven I/O?