Suppose we're using the First Come First Served scheduling algorithm. Observethe following table describing processes coming in to our scheduler:Estimated Burst Time (ms)Arrival Time (ms) Process10P11P2P3P43When will each process execute along the timeline? Include the point at whichit stops. Answer only with numbers; Do not include spaces, punctuation, or"ms".As a quick gimme, we can clearly see P1 will execute from 0 to 5, which meansthe next process would start at 5.P1 will execute fromP2 will execute from52897P3 will execute fromP4 will execute fromtotototo

First Come First Serve (FCFS) Algorithm First Come First Serve (FCFS) is a non-preemptive…

Suppose we're using the First Come First Served scheduling algorithm. Observe the following table describing processes coming in to our scheduler: Estimated Burst Time (ms) Arrival Time (ms) Process 0 P1 1 P2 12 P3 P4 When will each process execute along the timeline? Include the point which it stops. Answer only with numbers; Do not include spaces, punctuation, or "ms". As a quick gimme, we can clearly see P1 will execute from 0 to 5, which means the next process would start at 5. P1 will execute from P2 will execute from 5 28 9 7 P3 will execute from P4 will execute from to to to to

Suppose we're using the First Come First Served scheduling algorithm. Observe the following table describing processes coming in to our scheduler: Estimated Burst Time (ms) Arrival Time (ms) Process 0 P1 1 P2 12 P3 P4 When will each process execute along the timeline? Include the point which it stops. Answer only with numbers; Do not include spaces, punctuation, or "ms". As a quick gimme, we can clearly see P1 will execute from 0 to 5, which means the next process would start at 5. P1 will execute from P2 will execute from 5 28 9 7 P3 will execute from P4 will execute from to to to to

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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Consider the following set of processes (a smaller priority number implies a higher priority). The processes are assumed to have arrived in the order P1, P2, P3, P4, P5 all at time 0. Process Priority Burst Time P1 1 20 P2 3 25 P3 4 25 P4 2 15 P5 5 30 What is the waiting time of each process for each of the scheduling algorithms FCFS, SJF (if two jobs have the same burst time, schedule them following priority), non-preemptive priority? Process FCFS SJF Priority P1 P2 P3 P4 P5
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Consider the following set of six processes, with the arrival times, CPU burst time (in milliseconds), and priority. process arrival time burst time priority P1 22 10 3 P2 8 4 2 P3 28 12 6 P4 10 8 1 P5 35 6 5 P6 8 20 4 (a) Draw four Gantt charts that illustrate the execution of these processes using the following scheduling algorithms: FCFS, SJF, preemptive priority (a smaller priority number implies a higher priority), and RR (quantum= 8).(b) Compute the average wait time in each of the scheduling algorithms in part (a)?
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Consider the FCFS, SJF, and RR (quantum = 8 milliseconds) scheduling algorithms for this set of processes. Process Burst Time P1 8 P2 25 P3 3 P4 7 P5 11 The processes are assumed to have arrived in the order P1, P2, P3, P4, P5, all at time 0. a) Draw Gantt charts that illustrate the execution of these processes using the following scheduling algorithms: FCFS, SJF, and RR. b) What is the waiting time of each process for each of these scheduling algorithms? c) Which of the algorithms results in the minimum average waiting time (overall processes)? d) Derive the Need (max-Alloc) matrix. It should be presented like the Allocation or Maximum matrices above. e) If the request from process P1 arrives for (0,1,2,0), can the request be granted? Why?
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A buddy system allocates memory from a fixed-size segment consisting of physically contiguous pages using a power-of-2 allocator. Consider a computer system that has 256M memory available. By using diagram, show the results of each memory request/release via memory layout at each stage according to the followings orders: requests 25M requests 110M requests 52M Release A Release C requests 75M Page Time Loaded Last Reference R bit M bit 2 117 212 1 1 0 130 264 0 0 3 58 240 1 0 1 86 203 1 1 In your own words, explain what happened to the memory block prior to the last request allocation. Calculate the total of internal fragmentation (in M unit) after memory allocation to request C is fulfilled.