Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain with an example the need of Shift Alteration in critical section problem?
Consider processes Pi and Pj and consider the algorithm for Pi and Pj.
For Pi
do
{
while(turn!=i)
critical section
turn=j
remainder section
}whie(1);
while(turn!=j)
turn=i
In the above code variable 'turn' is shared among the two processes. If turn=i after that process Pi is allowed to get into the critical section. This make sure that only one process at a time can be in its critical section. It doesn't satisfy the progress requirement and as a result we can do strict alteration with this code. That is if turn=0 and P1 is ready to get into the critical section, P1 can't enter into the critical section even though P0 may be in its remainder section. therefore a new algorithm which stores the state of the process is implemented. The code is:
flag[i]=true
while(flag[j])
flag[i]=false
}whiel(1)
Here Pi is setting its flag as true. Then it confirms whether Pj is present in the critical section. If so after that it waits until the process Pj comes out of the critical section. If state of Pj is set as false after that Pi directly enters into the critical section.
Q. Give an instance of an application in which data in a file should be accessed in the following order: a. Sequentially b. Randomly Answer: a. Print the content of
Explain Components of conflict phase of dispatch latency The conflict phase of dispatch latency has two components 1. Preemption of any process running in the kernel. 2.
Introduction of linux
Ask using a laballed diagram explaining the architecture of windows operating ststem
A scheduler that selects processes from secondary storage device is known as Medium term scheduler is a scheduler that selects processes from secondary stor
cpu protection in linux
Define a state which is not a fundamental process state Answer: Blocked state is not a fundamental process state
What is critical section problem? Consider a system consists of 'n' processes. Every process has segment of code called a critical section, in which the process might be changi
College life is tough. Eating pizza for every meal is hitting you hard. You are looking at working out to stay healthy. You found a web site that tells you how many calories eac
What is sector sparing is proper definition
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd