## Resource Allocation Diagram AnalysisIn the provided resource allocation diagram, we have three processes labeled P1, P2, and P3 corresponding to three resources: Processor, I/O, and Main Memory. The diagram uses solid and dashed lines to indicate the allocation and waiting states of resources by processes.**Key:**- **Solid Line:** The resource has been allocated to the process.- **Dashed Line:** The process is waiting for the resource.### Diagram Explanation:- **P1:** - Has a solid line connecting it to the Processor, indicating that the Processor is currently allocated to P1. - A solid line connects P1 to I/O, showing that P1 is also allocated the I/O resource. - **P2:** - Displays a solid line to the I/O resource, indicating it is allocated the I/O resource. - Has a dashed line pointing towards the Processor, signifying P2 is waiting for the Processor. - Also has a dashed line toward Main Memory, meaning P2 is waiting for it as well. - **P3:** - Shows a solid line leading to Main Memory, indicating that Main Memory is allocated to P3. - Dashed lines connect P3 to the I/O and Processor, indicating P3 is waiting for both these resources.### Analysis of Process States:- **P1** is in a running state since it has both the Processor and I/O resources needed for its operation.- **P2** is in a waiting state because it lacks both the Processor and Main Memory.- **P3** is also in a waiting state because it requires the Processor and I/O resources to proceed.This diagram illustrates a typical allocation scenario in operating systems, helping visualize how resource allocation and process scheduling might work, which is critical for avoiding deadlocks and optimizing performance within a system.

The Algorithmic Flow of the process running is as follows.Step.1) In the queue for executionStep.2)…

Derive the states of the three processes P1, P2 and P3 from below resource allocation diagram and explain why. (A solid line. indicates that the resource has been allocated to the process; a dashed line means that the process is waiting for the resource)

Derive the states of the three processes P1, P2 and P3 from below resource allocation diagram and explain why. (A solid line. indicates that the resource has been allocated to the process; a dashed line means that the process is waiting for the resource)

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

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Table 1. 4 processes arriving shown in Operating System Scheduling PDF for Shortest Job Next, non- preemptive Process Arrival Times Execution Times Service Times sequence Wait Times calculations PO 0 12 P1 21 9 P2 41 6 P3 6 3 Total wait time = ? Here the 4 processes of the PDF are repeated in Table 1, with arrival times changed to 0, 2, 4, and 6 respectively. Also, the execution times are changed to 12, 9, 6, and 3. You will be asked to fill table 1 with the numbers like the service times (when is each process serviced), the sequence of executions of these 4 processes in part (a) and part (b) below. Also, you will compute the total wait time. Note for FCFS, it is 1, 2, 3, 4 for P0, P1, P2, and P3; • for the SJN or Shortest Job Next with non-preemptive, PO is #1, P1 may not be #2; for SRT, or shortest remaining time, the preemptive version of SJN, PO is #1, but after 2 time units when P1 comes, P1 kicks out PO since its execution time is 4 < 9- 2 = 7; and P1 may be preempted by P2 later…
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