Arrival timeJ1J22J33J410J512J615☐burst time1083414Compute the turnaround time and total waiting time for each job using each of the following CPUschedulers:FCFS schedulinga.b.SJF schedulingb.C.Preemptive SJF schedulingMLFQ scheduling with three queues as follows:•Queue 1: 3 time slices•Queue 2: 6 time slices•Queue 3: FCFS (First-Come, First-Served)

1. First Come First Served Scheduling First Come First ServeExplanation:There are jobs that have…

Answered: Arrival time J1 J2 2 J3 3 J4 10 J5 12…

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter11: Operating Systems

Section: Chapter Questions

Problem 8RQ

See similar textbooks

Similar questions

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
Process Scheduling: Select all statements below that are true Dynamic Priority Round Robin (DPRR) makes use of a preliminary stage containing prioritized queues. When Multilevel feedback (MLF) scheduling is applied, processes at lower priority levels can take more processor time than processes at higher levels. Multilevel Priority (ML) scheduling is based on priority queues and uses a fixed set of priorities. When Multilevel Feedback (MLF) scheduling is applied, processes do not remain at the same priority level, but gradually migrate to lower levels each time they use up their allotted time threshold. Priority Inversion means that low-priority processes can be delayed or blocked by higher-priority processes.
Programming Project: Scheduling Algorithms This project involves implementing several different process scheduling algorithms. The scheduler will be assigned a predefined set of tasks and will schedule the tasks based on the selected scheduling algorithm. Each task is assigned a priority and CPU burst. The following scheduling algorithms will be implemented: First-come, first-served (FCFS), which schedules tasks in the order inwhich they request the CPU. Shortest-job-first (SJF), which schedules tasks in order of the length of the tasks’ next CPU burst. Priority scheduling, which schedules tasks based on priority. Round-robin (RR) scheduling, where each task is run for a time quantum (or for the remainder of its CPU burst). Priority with round-robin, which schedules tasks in order of priority and uses round-robin scheduling for tasks with equal priority. Priorities range from 1 to 10, where a higher numeric value indicates a higher relative priority. For round-robin scheduling, the…
2. a) Your colleague has invented a new scheduling algorithm using the multilevel queue approach. This list of processes showing CPU burst times is below. There are three queues used in the application. The processes all start on the first queue and receive upto 10ms of burst time. Once the process has received the 10ms on the first queue, if the process still requires burst time it is passed to the second queue where it receives upto 20ms. Once the process has received the 20ms on the second queue, if the process still requires burst time it is passed to the third queue where it receives CPU time until it is completed. The operating system will only start allocating CPU time to processes on the second queue when queue 1 is empty. The operating system will only start allocating CPU time to processes on the third queue when queue 2 is empty. Process Number P1 P2 P3 P4 Burst time (ms) 21 8 35 50 i) Does this algorithm give higher priority to any queue over the others and any processes…
2. a) Your colleague has invented a new scheduling algorithm using the multilevel queue approach. This list of processes showing CPU burst times is below. There are three queues used in the application. The processes all start on the first queue and receive upto 10ms of burst time. Once the process has received the 10ms on the first queue, if the process still requires burst time it is passed to the second queue where it receives upto 20ms. Once the process has received the 20ms on the second queue, if the process still requires burst time it is passed to the third queue where it receives CPU time until it is completed. The operating system will only start allocating CPU time to processes on the second queue when queue 1 is empty. The operating system will only start allocating CPU time to processes on the third queue when queue 2 is empty. Process Number P1 P2 P3 P4 Burst time (ms) 21 8 35 50 ii) Is it likely that any processes will suffer starvation?
2. FIFO scheduling is a) Fair-share scheduling b) Deadline scheduling c) Non-preemptive scheduling d) Preemptive scheduling
Note: Write a C Language program:
TASK: 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 that is closest in size to the request. First-fit chooses the first available block that is large enough. Worst-fit chooses the largest available…
Modiflow y the beprogram given to include response time program;FCFS CPU SCHEDULING ALGORITHM #include<stdio.h>#include<conio.h>main(){int bt[20], wt[20], tat[20], i, n; float wtavg, tatavg;clrscr();printf("\nEnter the number of processes -- "); scanf("%d", &n);for(i=0;i<n;i++){printf("\nEnter Burst Time for Process %d -- ", i); scanf("%d", &bt[i]);}wt[0] = wtavg = 0; tat[0] = tatavg = bt[0];for(i=1;i<n;i++){wt[i] = wt[i-1] +bt[i-1];tat[i] = tat[i-1] +bt[i]; wtavg = wtavg + wt[i]; tatavg = tatavg + tat[i];}printf("\t PROCESS \tBURST TIME \t WAITING TIME\t TURNAROUND TIME\n");for(i=0;i<n;i++){printf("\n\t P%d \t\t %d \t\t %d \t\t %d", i, bt[i], wt[i], tat[i]);}printf("\nAverage Waiting Time -- %f", wtavg/n);printf("\nAverage Turnaround Time -- %f", tatavg/n); getch();}
Process Scheduling: Select all statements below that are true The time quantum T for RR should be larger than the average CPU demand between two I/O operations (CPU burst) of 80% of the processes. Round Robin (RR) imposes a fixed time quantum (time slice) on the amount of continuous CPU time that can be used by a process. Shortest Job First (SJF) is a preemptive scheduling method. Waiting time refers to the time a processor spends in the ready state waiting for the processor. First-In / First-Out (FIFO) scheduling assigns higher priorities to processes that arrive earlier. Shortest Remaining Time (SRJ) is a nonpreemptive version of SJF.
Multi-tasking can not be achieved with a single processor machine. True False 2. Async/Await is best for network bound operations while multi-threading and parallel programming is best for CPU-bound operations. True False 3. The following is a characteristic of an async method:The name of an async method, by convention, ends with an "Async" suffix. True False 4. Using asynchronous code for network bound operations can speed up the time needed to contact the server and get the data back. True False 5. Asynchronous programming has been there for a long time but has tremendously been improved by the simplified approach of async programming in C# 5 through the introduction of: The Task class True False
In this assignment, you will implement a simple OS scheduler using C/C++. The scheduler's task is to receive a set of processes and their details, and then decide the order of executing these processes based on the chosen algorithm. Finally, the scheduler will output the order of process execution, in addition to some stats about each of the processes. The scheduling algorithm chosen for this assignment will be SJF (Shortest Job First). The input will start with an integer N, representing the number of processes, followed by N lines (one for each process). For each line i, the line will start with a strings, representing the process name, followed by 2 numbers representing the arrival time and processing time for the ith process, respectively. Your program should print a line indicating the order of executing the processes. Then, for each process, the program should print a line showing the process's name, response time, turnaround time, and delay. See the sample output below for…

SEE MORE QUESTIONS

Recommended textbooks for you

Systems Architecture

Computer Science

ISBN:

9781305080195

Author:

Stephen D. Burd

Publisher:

Cengage Learning

Systems Architecture

Computer Science

ISBN:

9781305080195

Author:

Stephen D. Burd

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS