Consider the given snap of the system

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written 7.8 years ago by

devikaraniroy • 640

modified 3.9 years ago by

pedsangini276 • 4.8k

PROCESS	Max	Allocation	Available
---	A B	A B	A B
---	C D	C D	C D
P0	0 2	0 3	2 5
---	1 2	2 2	3 2
P1	1 1	2 7	---
---	0 2	5 2	---
P2	2 2	2 3	---
---	5 4	7 6	---
P3	0 3	1 6	---
---	1 2	4 2	---
P4	2 4	3 6	---
---	1 4	5 8	---

Answer the following questions using bankers algorithm

i)what is the content of matrix needed?

ii)is the system in safe state?

iii)if a request for p1 arrives for (1,3,2,1) can the request be granted immediately?

Subject: Operating System

Topic: PROCESS COORDINATION

Difficulty: Hard

operating systems

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1 Answer

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written 7.7 years ago by

devikaraniroy • 640

So content of need matrix is

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PROCESS	Max	Allocation	Available
---	A B	A B	A B
---	C D	C D	C D
P0	0 2	0 3	2 5
---	1 2	2 2	3 2
P1	1 1	2 7	---
---	0 2	5 2	---
P2	2 2	2 3	---
---	5 4	7 6	---
P3	0 3	1 6	---
---	1 2	4 2	---
P4	2 4	3 6	---
---	1 4	5 8	---

PROCESS	Max	Allocation	Available
---	A B	A B	A B
---	C D	C D	C D
P0	0 2	0 3	2 5
---	1 2	2 2	3 2
P1	1 1	2 7	---
---	0 2	5 2	---
P2	2 2	2 3	---
---	5 4	7 6	---
P3	0 3	1 6	---
---	1 2	4 2	---
P4	2 4	3 6	---
---	1 4	5 8	---

PROCESS	Max	Allocation	Available
---	A B	A B	A B
---	C D	C D	C D
P0	0 2	0 3	2 5
---	1 2	2 2	3 2
P1	1 1	2 7	---
---	0 2	5 2	---
P2	2 2	2 3	---
---	5 4	7 6	---
P3	0 3	1 6	---
---	1 2	4 2	---
P4	2 4	3 6	---
---	1 4	5 8	---