Q1 ) (Degree of Multiprogramming) A computer system has enough room to hold five programs in its main memory In the below table, you are given these processes, their computation (CPU) and I O times Assume that at one point in time all processes are being executed, and assume that processes are independent Answer the following questions Process ID CPU Use I O Use P1 50 50 P2 25 75 P3 25 75 P4 75 25 P5 50 50 a) Assuming all processes are independent what is the CPU utilization on a single CPU system (Hint CPU is utilized if one of the programs is being executed and not waiting I O) b) Assuming all processes are independent what is the CPU utilization on a two CPU system (Hint A fully CPU utilized system should have two processes executing in the two CPUs at any time, if a single CPU is idle, the system has 50 CPU utilization)

Question: Q1 ) (Degree of Multiprogramming) A computer system has enough room to hold five programs in its main memory. In the below table, you are

Q1 ) (Degree of Multiprogramming) A computer system has enough room to hold five programs in its main memory. In the below table, you are given these processes, their computation (CPU) and I/O times. Assume that at one point in time all processes are being executed, and assume that processes are independent. Answer the following questions.

Process ID	CPU Use	I/O Use
P1	50	50
P2	25	75
P3	25	75
P4	75	25
P5	50	50

a) Assuming all processes are independent what is the CPU utilization on a single CPU system? (Hint: CPU is utilized if one of the programs is being executed and not waiting I/O)

b) Assuming all processes are independent what is the CPU utilization on a two-CPU system? (Hint: A fully CPU-utilized system should have two processes executing in the two CPUs at any time, if a single CPU is idle, the system has 50% CPU utilization)

Step by Step Solution

★★★★★

3.50 Rating (153 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

To calculate CPU utilization we need to determine how much time the CPU is busy executing processes compared to the total time taken by all the processes Given the data Process ID CPU Use IO Use P1 CP... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Operating System Questions!

a) A computer system has enough room to hold five programs in its main memory. These programs are idle waiting for I/O half the time. What fraction of the CPU time is wasted. b) A real-time system...

A computer system has a 128 byte cache. It uses four-way set-associative mapping with 8 bytes in each block. The physical address size is 32 bits, and the smallest addressable unit is 1 byte. a) Draw...

Suppose Alissa has $50,000 in her savings account. She transfer $10,000 to her checking account. She also withdraws $5,000 from her savings to keep in a black leather suitcase next to the cactus that...

Hi guys, I am trying to properly answer an accounting question concerning shares, bonds, and stock. I was given two annual reports, and am asked to make a decision on one of the companies depending...

Hi there! One more question for you. Similar to my last one. I have to have it done by tonight. Let me know if you cannot do it. Here it is: Scenario 3 May I Propose To... You are a partner in a...

You are a partner in a prestigious accounting firm, and you just received requests for proposal from two companies; Advanced Micro Devices, and Facebook. The deadline for the proposals is, as is...

HOW DO SOFTWARE 1 Data Structures and Algorithms A certain program has to maintain an array, count, of N counters which are all initialised to zero. The value of counter i can be incremented by one...

ttth Suppose that the sequence of bags {Bn | n N} is recursively enumerated by the computable function e(n, x) = fn(x), [7 marks] Hence prove that the set of all recursive bags cannot be recursively...

Portray in words what transforms you would have to make to your execution to some degree (a) to accomplish this and remark on the benefits and detriments of this thought.You are approached to compose...

io (a) Give the general formula for estimating transition probabilities from training data. Provide the full transition matrix A for this HMM based on the training data shown. [6 marks] (b) Give the...

Consider the following simplified financial statements for the Wims Corporation ( assuming no income taxes ) : Income Statement Balance Sheet Sales $ 3 3 , 2 0 0 Assets $ 2 2 , 1 5 0 Debt $ 6 , 6 5 0...

During May, 6,000 pounds of raw materials were purchased at an actual cost of $2.60 per pound. If there was a favorable materials price variance of $1,200 for December, the standard cost per pound...

It is essential that performance initiatives are measured in order to determine their success or failure. Outline two performance metrics that an HR manager might use to measure or monitor a...

Tom Hruise was an entertainment executive who had a fatal accident on a film set. Tom's will directed his executor to distribute his cash and stock to his spouse, Kaffie, and the real estate to a...

All questions are about NAFTA: 4-5+ sentences per question Are you able to describe the social environment impact on business NAFTA created? Based on your opinion, do you see a need for changes in...

You are a senior leader in a school or business and have been asked to conduct an internal audit of the organization's HR functions. If you were to write a memo to supervisors in your organization...

Allocating Joint Costs Using the Weighted Average Method Sunny Lane, Inc., purchases peaches from local orchards and sorts them into four categories. Grade A are large blemish-free peaches that can...

1. What are some current issues facing Saudi Arabia? What is the climate for doing business in Saudi Arabia today? 2. Is it legal for Auger's firm to make a payment of $100,000 to help ensure this...

A market research firm hires operators to conduct telephone surveys. The computer randomly dials a telephone number, and the operator asks the respondent whether or not he has time to answer some...

In Exercise 11.43 (and data set EX1143), we compared the regular prices at four different grocery stores for eight items purchased on the same day. The prices are listed in the table. a. Does the...

A student government states that 80% of all students favor an increase in student fees to subsidize a new recreational area. A random sample of n = 25 students produced 15 in favor of increased fees....

The analysis of the Texaco-Pennzoil example shows that the EMV of counter offering with $5 billion far exceeds $2 billion. Why might Liedtke want to accept the $2 billion anyway? If you were Liedtke,...

Add ideas of your own to the list in Figure 6.12 concerning methods for reducing risk and adding value.

The consequence variable used in the House-Hunting example was Net Annual Cost, but as we mentioned, houses are also purchased as investments, suggesting that it might be useful to include equity and...