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!
Describe swapping technique in UNIX systems.
Swapping is used to control memory contention among processes. If there is excessively much memory contention, processes are swapped out until sufficient memory is available. Allocation of both main memory as well as swap space is done first fit. When the size of a process main memory image increases, a new piece of memory large enough for the whole image is allocated. The memory image is copied and the old memory is freed and the appropriate tables are updated. If no single piece of memory is large sufficient the process is swapped out such as it will be swapped back in with the new size.
Decisions as regards which process to swap in or out are made by the process scheduler, as well called as the swapper. The scheduler wakes up at least every 4 seconds to check for processes to be swapped in or out. There are confirm to avoid thrashing, fundamentally by not letting a process to be swapped out, previous to it has been in the memory for a certain amount of time.
If jobs require not be swapped out, the process table is searched to find a process deserving to be brought in. If there isn't enough memory available processes are swapped out until there.
Q. Is disk scheduling except FCFS scheduling useful in a single-user environment? describe your answer. Answer: In a single-user environment the I/O queue typically is empty.
What criteria are important in choosing a file organisation?
benefits of dynamic linking
LINUX OPERATING SYSTEM 1. Write a brief explanation about the Linux distribution. 2. Explain the features that Bash shell provides? 3. Who is responsible for managing use
What is an acyclic graph? A tree that has been corrupted by links to other branches, but does not have any cyclic paths in it.
Question: a) The following questions pertain to User and Group accounts in Windows XP: i) Give four differences between a Power User and a Guest User account. ii) Explain h
Explain the general structure of a typical process? There are basically four main sections through which each of the process has to pass through.The universal algorithm is:-
KERNEL-LEVEL THREADS (KLT) In this level every thread management is done by kernel .No thread library except an API system calls to the kernel thread facility exists. The kern
Describe the differences between symmetric and asymmetric multiprocessing. What are three advantages and one disadvantage of multiprocessor systems? Symmetric multiprocessing t
Q. Segmentation is alike to paging but uses variable-sized "pages". Describe two segment-replacement algorithms based on FIFO and LRU page replacement schemes. Remember that since
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