4. A system holds memory as shown in the figure below. (units in bytes) H P2 P3 150 50 100 P4 200 75 H P7 so 100 PI P5 P8 100 400 125 375 500 125 Consider the following sequence of process arrival: P9(174B) comes PI0(101B) comes P3 leaves P11(51B) comes P12(526B) comes i) ii) iii) iv) v) a. Show memory representation using first fit and worst fit algorithm for the above sequence of process. b. Also calculate the external fragmentation for each of the algorithm after storing each of the above process.

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
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4. A system holds memory as shown in the figure below. (units in bytes)
H P4
200 75
H P7
50 100
PI
P2 P3
P3
P5
P8
100 150 50 100
400
125
375
500
125
Consider the following sequence of process arrival:
P9(174B) comes
P10(101B) comes
P3 leaves
P11(51B) comes
i)
ii)
iii)
iv)
v)
P12(526B) comes
a. Show memory representation using first fit and worst fit algorithm for the above
sequence of process.
b. Also calculate the external fragmentation for each of the algorithm after storing
each of the above process.
Transcribed Image Text:4. A system holds memory as shown in the figure below. (units in bytes) H P4 200 75 H P7 50 100 PI P2 P3 P3 P5 P8 100 150 50 100 400 125 375 500 125 Consider the following sequence of process arrival: P9(174B) comes P10(101B) comes P3 leaves P11(51B) comes i) ii) iii) iv) v) P12(526B) comes a. Show memory representation using first fit and worst fit algorithm for the above sequence of process. b. Also calculate the external fragmentation for each of the algorithm after storing each of the above process.
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