Answered: et the processes P1, P2, P3, P4, and P5…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Concept explainers

Question

Let the processes P1, P2, P3, P4, and P5 be given. They arrive in the system at the same time in this order. The processes have the attached file as service times (in time units) and priorities. For each of the scheduling methods (First Come, first served (FIFO), Shortest Job First, Round Robin, and Priority Scheduling), specify the execution order of the processes and the average execution time (average turnaround time) for all processes. First, determine and state the execution times of the individual processes and then calculate the average value. Note: • For Shortest Job First, If the required service time (CPU time) is the same for two or more processes, use First Come, first served to resolve the conflict. • For Round Robin, the time quantum q = one time unit. • For Priority Scheduling, low integer priority values signify high priorities, with O being the highest possible priority. If multiple processes have the same priority, use First Come, first served to resolve the conflict. Also, remember that RR is pre-emptive. • You do not have to draw Gantt charts.

### Process Scheduling Data

The table below displays information on the service time (CPU burst) and priority for different processes in a computing system.

| Process | P1 | P2 | P3 | P4 | P5 |
|-----------|----|----|----|----|----|
| **Service time (CPU burst)** | 10 | 1 | 3 | 1 | 2 |
| **Priority** | 3 | 1 | 3 | 4 | 2 |

#### Explanation:

- **Processes (P1, P2, P3, P4, P5):** These represent different tasks or jobs that are being scheduled for execution.

- **Service time (CPU burst):** Indicates the amount of CPU time each process requires to complete its execution. For example, process P1 needs 10 units of time, while process P2 only requires 1 unit.

- **Priority:** Reflects the importance of the processes, with a lower number indicating a higher priority. Thus, P2 with a priority of 1 is the highest priority process in this table.

This data is commonly used in concepts of CPU scheduling algorithms to understand how various processes are prioritized and allocated CPU time.

Expert Solution

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions