Direction: Draw a Gantt chart showing the execution of CPU for the following processes implementing Round robin (RR) as indicated below. A the turnaround times (TAT) and waiting times (WT) of all processes using this scheduling algorithm. The quantum time (QT) is set to 6. Question 1 Write your answers on the spaces provided. Process Burst Time (BT) Arrival time (AT) RR TAT RR WT P1 15 P2 10 P3 9 P4 3 10 P5 20

Direction: Draw a Gantt chart showing the execution of CPU for the following processes implementing Round robin (RR) as indicated below. A the turnaround times (TAT) and waiting times (WT) of all processes using this scheduling algorithm. The quantum time (QT) is set to 6. Question 1 Write your answers on the spaces provided. Process Burst Time (BT) Arrival time (AT) RR TAT RR WT P1 15 P2 10 P3 9 P4 3 10 P5 20

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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111.Here is a periodic task-set shown in the table. Schedule the tasks using Earliest Deadline First (EDF) scheduling. In case of equal deadlines, a task with lower index has higher priority. Do all tasks meet their deadlines?
In this project you are to design a process queue that is responsible for handling the process requests coming from different users. You have to take into consideration that users have different levels of privileges and priorities. Each user has an identification number and a password, in addition to process priorities. One good idea is to design the queue using an array or pointers while preserving the first-in first-out concept of the queue. For every process request received, the program should check the privileges of that request and whether it can be moved forward in the queue to be served by the operating system prior to serving the other requests. Using the programming language of your choice (preferably C+), write the process queue that would handle the user request. The program must allow for requests coming from different users or from one user.
Assume that there are the following processes in the deadline scheduler queue: Process Arrival Runtime Period Deadline 1 0 2 12 10 2 2 4 20 16 3 4 3 15 14 Complete the following schedule so each of the processes adheres to the deadline policy by replacing a dot with a process number (as necessary): TIME: 01234567890123456789012345678901234567890123456789 PROCESS: 112222333.......................................
Race condition is the scenario that the same problem can finish at different time when running at processors with different speeds or rates. O True O False When the total utilization of a given periodic task set is lower than 0.5, all tasks can meet their deadlines. O True O False There are in general two methods for interprocess communication: shared variable and The cyclic scheduling scheme is much simpler, more flexible, and adaptive than the round-robin scheduling scheme. O True O False Real time systems can be largely classified as soft real time systems and firm real time systems. O True he O False
You are required to make changes in the above programs and introduce the use of compaction where required. Write code to simulate Worst-Fit Algorithm TASK2: DESCRIPTION One of the simplest methods for memory allocation is to divide memory into several fixed-sized partitions. Each partition may contain exactly one process. In this multiple-partition method, when a partition is free, a process is selected from the input queue and is loaded into the free partition. When the process terminates, the partition becomes available for another process. The operating system keeps a table indicating which parts of memory are available and which are occupied. Finally, when a process arrives and needs memory, a memory section large enough for this process is provided. When it is time to load or swap a process into main memory, and if there is more than one free block of memory of sufficient size, then the operating system must decide which free block to allocate. Best-fit strategy chooses the block…
You are required to make changes in the above programs and introduce the use of compaction where required. Write code to simulate Worst-Fit Algorithm TASK2: DESCRIPTION One of the simplest methods for memory allocation is to divide memory into several fixed-sized partitions. Each partition may contain exactly one process. In this multiple-partition method, when a partition is free, a process is selected from the input queue and is loaded into the free partition. When the process terminates, the partition becomes available for another process. The operating system keeps a table indicating which parts of memory are available and which are occupied. Finally, when a process arrives and needs memory, a memory section large enough for this process is provided. When it is time to load or swap a process into main memory, and if there is more than one free block of memory of sufficient size, then the operating system must decide which free block to allocate. Best-fit strategy chooses the block…
Project Objectives: This programming project is to simulate a few CPU scheduling policies discussed in the class. You will writeC++ program to implement a simulator with different scheduling algorithms. The simulator selects a task to run from ready queue based on the scheduling algorithm. Since the project intends to simulate a CPU scheduler, so it does not require any actual process creation or execution. When a task is scheduled, the simulator will simply print out what task is selected to run at a time. It outputs the way similar to Gantt chart style. Project Descriptions and Requirements: The selected scheduling algorithms to implement in this project are 1) First Come First Serve (FCFS), 2) Shortest Job First (SJF) and Shortest Remaining Time First (SRTF) OR , Priority and Preemptive Priority , and 3) Round Robin (RR). The detailed algorithms will be discussed in class. The task information will be entered from the keyboard. The format is process_id arrival_time, and burst_time.…
Do the Round Robin:Quantom=3 scheduling algorithm to the list of processes. The process should provide : a. A detailed gantt chart b. finish time, turnaround time, waiting time c. The average turnaround time d. The average waiting time
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