7. Five jobs arrive nearly simultaneously for processing and their estimated CPU cycles are,respectively: Job A = 20, Job B = 5, Job C = 5, Job D = 7, and Job E = 4 ms. Using SJN, andassuming the difference in arrival time is negligible, in what order would they be processed?What is the total time required to process all five jobs? What is the average turnaround time forall five jobs? What is the average waiting time for all five jobs? If Job A arrival at 0, Job B arrivalat 2, Job C arrival at 5, Job D arrival at 10, Job E arrival at 11, average turnaround? Averagewaiting time?

We are given two cases : in the first case we will assume all jobs arrives at time 0 and then we…

Answered: Five jobs arrive nearly simultaneously…

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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Sherman Company employs 400 production, maintenance,and janitorial workers in eight separatedepartments. In addition to supervising operations,the supervisors of the departments are responsiblefor recruiting, hiring, and firing workers withintheir areas of responsibility. The organizationattracts casual labor and experiences a 20 to 30 percentturnover rate in employees per year.Employees clock on and off the job each day torecord their attendance on time cards. Each departmenthas its own clock machine located in an unattendedroom away from the main production area. Eachweek, the supervisors gather the time cards, reviewthem for accuracy, and sign and submit them to the payrolldepartment for processing. In addition, the supervisorssubmit personnel action forms to reflect newlyhired and terminated employees. From these documents,the payroll clerk prepares payroll checks andupdates the employee records. The supervisor of thepayroll department signs the paychecks, which aredrawn on the…
Assume for convenience that demand is constant, the stock keeping unit (SKU) has been stored in k locations of identical size, and all picks are from a single active pick location until that location is exhausted. Then the inventory cycle may be imagined as consisting of k periods, each devoted to a particular pick location. The space utilization in period i is k-(i-1)-12/1 k-i+ k-(i-1) Thus, the average of the space utilization (ASU) of all k periods is asu= (1) The space utilization (SU) of the whole k periods is su = k = k i=1 2 k-i +1 i=1 k-i+ k-i +1 Σk-i+ i=1 k Σ(k-i+1) Use MATLAB® to write the functions to calculate "asu" and "su" of input "K". Employing these functions, program the script to draw the curves that show how both "asu" and "su" increase with additional storage locations, but at a diminishing rate.
Given the following jobs/processes, job lengths, and arrival times, compute the completion time,turnaround time, and waiting time for each job in a table. Draw the Gantt chart and suggest anapplication for each job. (Consider 5 as a highest priority and 0 as a lowest priority).a. First Come First Serve (FCFS)b. Shortest Job First Scheduling (SJF) algorithm.c. Shortest Remaining time (SRT) algorithm.BN104 Operating System 4Prepared by: Archana Banepali Moderated by: Dr Rajan Kadel T1, 2023Question 4d. Non-preemptive priority scheduling algorithme. Pre-emptive priority Scheduling algorithmf. Round-Robin Scheduling algorithm (consider time slice is 4ms).Process Burst Time ArrivalTimePriorityP1 11 2 3P2 28 1 1P3 2 3 4P4 10 4 2P5 16 5 5Table: Processes with Arrival Time, Burst Time and Priority

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