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.
What does it mean for something to be thread-safe? By saying that X is thread-safe, we mean that if multiple threads use X at the same time, we don't have to worry about concurrenc
Forking is an important phase of Unix, critical to the support of its design strategies, which encourages the implementation of filters. In Unix, a filter is a process that reads i
Define Virtual memory Virtual memory is employed in all major commercial operating systems
1. On every access, mark the page with a timestamp. Whenever we need to evict a page, we search through memory for the oldest page, the least-recently used page. But we need memory
Internal file structure All disk I/O is performed in units of single block, and all blocks are the similar size. It is unlikely that the physical record size will exactly match
When you turn in an assignment to be graded in this class, you are making the claim that you neither gave nor received assistance on the work you turned in (except, of course, assi
using the transformation process model and system thinking concepts explain the key operation of TGL works.
with the aid of diagrams describe the following OS structure monolithic,layered and client server.
Define logical address and physical address. An address formed by the CPU is referred as logical address. An address seen by the memory unit that is the single loaded into the
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