Question

A system has five processes P1 through P5 and four resource types R1 through R4. There...

A system has five processes P1 through P5 and four resource types R1 through R4. There are 2 units of each resource type. Given that: P1 holds 1 unit of R1 and requests 1 unit of R4 P2 holds 1 unit of R3 and requests 1 unit of R2 P3 holds one unit of R2 and requests 1 unit of R3 P4 requests 1 unit of R4 P5 holds one unit of R3 and 1 unit of R2, and requests 1 unit of R3 Show the resource graph for this state of the system. Is the system in deadlock, and if so, which processes are involved?

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A system has five processes P1 through P5 and four resource types R1 through R4. There...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Please give an explanation for the answers as well. 1. A system has three processes (P1,...

    Please give an explanation for the answers as well. 1. A system has three processes (P1, P2, and P3) and three resources (R1, R2, and R3). There is one instance of RI, two instances of R2, and three instances of R3. PI holds RI and one instance of R3 and is requesting one instance from R2. P2 holds one instance of R3 and is requesting RI and one instance from R2. P3 holds two instances of R2 and one instance...

  • In a computer system five processes are attempting to proceed with three resource types. The total...

    In a computer system five processes are attempting to proceed with three resource types. The total units of system resources are: (8,9,7). The maximum demands for every process are: P1(3,1,1), P2(3,3,2), P3(5,3,2), P4(5,1,2), P5(8,4,3). The current allocation is: P1 (0,1,1), P2 (2,1,1), P3 (3,1,2), P4 (1,1,1), and P5 (2,3,2). Is this state a safe state? Explain

  • a. A system has two processes and three identical resources. Each process needs a maximum of...

    a. A system has two processes and three identical resources. Each process needs a maximum of two resources. Is deadlock possible? Explain your answer. b. A system has 4 processes, P1 through P4, and 5 types of resources, R1 through R5. Existing resource vector E = (3, 2, 1, 2, 2) Current allocation matrix C = R1 R2 R3 R4 R5 P1 1 1 0 0 0 P2 0 0 1 0 0 P2 1 0 0 20 P4 0...

  • Given the table, suppose we have avoided circular-wait by ordering the resources in the order R1...

    Given the table, suppose we have avoided circular-wait by ordering the resources in the order R1 -> R2 -> R3 -> R4 and enforcing that each process must request resources in the ascending order. Show one allocation possibility of R1-R4 to P1-P4 and the corresponding wait-for graph. If there is a deadlock, please explain why or why not? Resource No. of instances Requested Allocated R1 2 P1, P2 ? R2 1 P1, P3 ? R3 1 P3, P4 ? R4...

  • In a system consisting of four processes and five resource types, the current allocation and maximum...

    In a system consisting of four processes and five resource types, the current allocation and maximum needs are as follows Process PO P1 P2 P3 Allocation 10211 20110 11010 Maximum 11213 22210 21310 11221 Available 00x12 What is the smallest value of 'x' that can keep the system in a safe state? Once you find the 'x value, find a safe execution order using the Safety Algorithm we discussed in the lecture. Include a step-by-step walk-through of the Safety Algorithm

  • (1) Having the following sets: [2 marks] P: P1, P2, P3 R: R1, R2, R3 E:...

    (1) Having the following sets: [2 marks] P: P1, P2, P3 R: R1, R2, R3 E: P1→R2, P2→R1 R1→P1, R2→P2, R3→P3 Draw the resource allocation graph of the previous system? Examine if the system deadlocked or not and list all the cycles?

  • 5. Provide the Need table for the following Processes Process Allocated Maximum R1 R2 R3 R4...

    5. Provide the Need table for the following Processes Process Allocated Maximum R1 R2 R3 R4 R1 R2 R3 R42 РОe 02122212 552527 P12 120 121 2 324344-12 P2 1212222222222232 P3 1 2022 252 42 325 P44 12010026825272 Process Available. R14 R2 R3 R4 POH 2 2012 () Using the Banker's algorithm, determine if the system is in a safe state, and if so, state the safe sequence.

  • In order to prevent deadlocks, let a system adopt the policy of forcing processes to request...

    In order to prevent deadlocks, let a system adopt the policy of forcing processes to request resources in ascending order of request type rank. In particular, when a process is requesting a resource of a certain type, the process cannot be holding other higher ranked resources. Consider four resource types with the following profile in this system: Resource Type Rank Number of Instances RT1 4 2 RT2 7 4 RT3 8 3 RT4 10 2 Let the following sequence of...

  • Assume in a system, there are: - 3 processes P1 to P3; - 3 resource types:...

    Assume in a system, there are: - 3 processes P1 to P3; - 3 resource types: A(9 instances), B(5 instances), and C(5 instances). Below is a snapshot at time T: 1) Show that the system is in a safe state at time T. 2) Can request for (A: 2, B: 0, C: 0) by P1 be granted? Explain your answer. Thank you so much, and it would be much better if it is well written and explained. Allocation Max Pl...

  • There are FIVE processesing station in a prodcution system: P1, P2, P3, P4 and P5. The...

    There are FIVE processesing station in a prodcution system: P1, P2, P3, P4 and P5. The times taken at each process are as follows 2 minutes, 6 minutes, 4 minutes, 8.6 and 15 minutes. Job request inflow rate is 16 per hour and jobs requests are accepted for six hours only. The systems closes after all accepted jobs have been completed, that is at the closing there are no unfinished jobs in the system. The system capacity = /hour The...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT