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 Busy Waiting Semaphores
Weak, Busy-wait Semaphores
a) The simplest way to implement semaphores.
b) Useful while critical sections last for a short time, or we comprise lots of CPUs.
c) S initialized to positive value (to permit someone in at the beginning).
d) S is an integer variable that, aside from initialization, can only be accessed by 2 atomic and mutually exclusive operations:
wait(s):
while (s.value != 0);
s.value--;
signal(s):
s.value++;
All happens atomically that is wrap pre and post protocols.
copy-on-write
What are the different file operations? Create : - Space for the file in the file system update directory table. Write : - file name and data to be written is
The term ‘page traffic’ explains Page traffic’ explains the movement of pages in and out of memory.
Discuss the high barriers to entry in the market for PL operating systems
Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.
operation policies
Refer a program with a linked origin of 5000. Suppose the memory area allocated to it have the start address of 70000. Determine the value to be loaded in relocation register?
Determine what the expansion of nested macro calls follows The expansion of nested macro calls follows the Last in First out (LIFO) rule.
Q. Why is rotational latency typically not considered in disk scheduling? How would you alter SSTF, SCAN and C-SCAN to comprise latency optimization? Answer: Most disks don't
Define semaphore A semaphore is a protected abstract or variable data type that constitutes the classic method for restricting access to shared resources like shared memory in
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