Question 8: A certain high-performance computing system uses the windows size of A for its working set model. The administrator is contemplating two options for upgrading the system: A. buy a faster CPU B. buy a faster paging device (disk) What is going to happen to A after the upgrades? neither upgrade is going to affect A A is going to increase after A and decrease after B A is going to decrease after A and increase after B a. b. C. d. e. A is going to decrease after either upgrade A is going to increase after either upgrade

Question 8: A certain high-performance computing system uses the windows size of A for its working set model. The administrator is contemplating two options for upgrading the system: A. buy a faster CPU B. buy a faster paging device (disk) What is going to happen to A after the upgrades? neither upgrade is going to affect A A is going to increase after A and decrease after B A is going to decrease after A and increase after B a. b. C. d. e. A is going to decrease after either upgrade A is going to increase after either upgrade

Operations Research : Applications and Algorithms

4th Edition

ISBN:9780534380588

Author:Wayne L. Winston

Publisher:Wayne L. Winston

Chapter20: Queuing Theory

Section20.10: Exponential Queues In Series And Open Queuing Networks

Problem 11P

See similar textbooks

Similar questions

In your view, which of Linux and Windows has an easier technique for running and controlling its virtual memory, and why?
A company is using Windows 7 and Windows XP as its operating systems and it has about 5000 computers so basically, they would like to upgrade their PCs but the problem is that the computers have different storages, harddisk, and hard drives so these are the stats of the computers: o 2500 Desktop PC’s (1GHZ CPU, 2GB RAM, 16GB HDD) o 1500 Desktop PC’s (1.4GHZ CPU, 4GB RAM, 1TB HDD) o 1000 Desktop PC’s (2.4GHZ CPU, 8 GB RAM, 128GB HDD) Advise the company on which operating system that they can upgrade to that is cost-efficient yet user friendly, distinguish why you have chosen this operating system as compared to other operating systems. Advise on additional hardware that is required to support your chosen operating system and explain how it may or may not be possible to re-use some of the existing hardware for the next 10 years. Provide creative answers
Consider a system with 13 dedicated devices of the same type and all jobs currently running on this system require a maximum of three devices to complete their execution but they each run for long periods of time with just two devices and request the remaining one only at the very end of the run. Assume that the job stream is endless and that your operating system’s device allocation policy is a very conservative one: No job will be started unless all the required drives have been allocated to it for the entire duration of its run. a. What is the maximum number of jobs that can be in progress at once? Explain your answer.b. Explain what are the minimum and maximum numbers of devices that may be idle as a result of this policy.c. Under what circumstances an additional job would be started?
Consider a system with 13 dedicated devices of the same type and all jobs currently running on this system require a maximum of three devices to complete their execution but they each run for long periods of time with just two devices and request the remaining one only at the very end of the run. Assume that the job stream is endless and that your operating system’s device allocation policy is a very conservative one: No job will be started unless all the required drives have been allocated to it for the entire duration of its run. a. What is the maximum number of jobs that can be in progress at once? Explain your answer. b.Explain what are the minimum and maximum numbers of devices that may be idle as a result of this policy. c. Under what circumstances an additional job would be started?
Perform virtual memory management, using terminal commands via Ubuntu Linux, including the following points: Use of commands cd /, cd proc, cd sys, cd vm, cd etc.Using the ls commandUsing the sudo cat /proc/sys/vm/swappiness commandUsing the sudo sysctl/ -w vm command.swappiness=30Using the sudo command gedit / proc / sys / vm / swappinessUsing the sudo gedit sysctl command.confUsing the sudo reboot command
Consider a system with 13 dedicated devices of the same type and all jobs currentlyrunning on this system require a maximum of three devices to complete theirexecution but they each run for long periods of time with just two devices andrequest the remaining one only at the very end of the run. Assume that the jobstream is endless and that your operating system’s device allocation policy is a veryconservative one: No job will be started unless all the required drives have beenallocated to it for the entire duration of its run. What is the maximum number of jobs that can be in progress at once? Explainyour answer
Consider a system with 13 dedicated devices of the same type and all jobs currentlyrunning on this system require a maximum of three devices to complete theirexecution but they each run for long periods of time with just two devices andrequest the remaining one only at the very end of the run. Assume that the jobstream is endless and that your operating system’s device allocation policy is a veryconservative one: No job will be started unless all the required drives have beenallocated to it for the entire duration of its run. Under what circumstances an additional job would be started?
Suppose that you are an operating system designer and have been approached by the system administrator to help solve a problem. After investigation, you realise that nonsharable files are allocated to jobs that eventually require other nonsharable and nonpreemptive resources and this is creating a recurring deadlock problem in your installation’s spooling system. 4.1 Why is the deadlock issue considered a big issue in a computer system? 4.2 Can you explain to your system administrator why this recurring deadlock cannot be solved by the system itself when it happens? 4.3 What features might you incorporate into the operating system so that deadlocks in the spooling system can be resolved without losing the work (the system processing) that was underway or already performed by the deadlocked processes? 4.4 What measures can you take to prevent deadlock in the future?
Is there a direct relationship between the quantity of data that is written to disk by a process during an I/O operation and the number of threads that are used to do the writing? Is there a RAID configuration that the Windows I/O manager is capable of supporting? Please elaborate on the reasoning for your response. Which of the following new Windows kernel components work closely with the Windows I/O manager? Expand upon your prior answer. Which part of the Windows I/O architecture is the most crucial, and what factors contribute to its significance in this regard? Kindly check to see that all sources have been referenced appropriately.
Can you please explain how the boot process overcome ONE of the following obstacles? in a short answer? a. Where to find the OS installed on the storage b. How control flow is transferred from firmware to software c. Missing drivers d. Real mode limit to access memory e. Large root file system
Protection is critical in the smooth operation of Operating System. However, to allow flexibility, we need to place minimal constraints upon user. Follows a list of operations which are usually protected. Select the minimal set of instructions which must be protected? Give reason. Change to user mode. Change to kernel mode. Read from kernel memory. Write into kernel memory. Instruction fetch from kernel memory. Turn on timer interrupt. Turn off timer interrupt.
Suppose we run a process several times on the same computer, with the same OS running, and find that it takes different amounts of time to complete in the different runs. Let us think about what factors could influence this. For each part below, please provide essential details. Minimize unnecessary information. (a) Can i/o devices affect this? (In this part assume that this process does not have any i/o) (b) Can the Memory Management System affect this?