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 Process scheduling
Process scheduling consists of the subsequent sub-functions:
1. Scheduling : Selects the process to be implement next on the CPU
2. Dispatching: Sets up implementation of the selected process on the CPU
3. Context save: Saves the status of the running process when its implementation is to be suspended
The scheduling function utilizes information from the PCB's and selects a process based on the scheduling policy in force. Dispatching engrosses the setting up of the execution environment of the selected process and loading information from the PSR and register fields of the PSB into the CPU. The context save function carries out housekeeping when a process releases the CPU or is pre-empted. It engrosses saving the PSR and registers in the appropriate fields of the PCB and changing the process state. In practice this function is performed through the interrupt processing module
The same as shown in the following fig, appearance of an event invokes the context save function. The kernel at this instant processes the event which has occurred. This processing may escort to a change of state for some process. The scheduling function is now appeal to select a process for execution on the CPU. The dispatching function arranges the implementation of the selected function on the CPU.
List five services provided by an operating system. Explain how each provides convenience to the users. Explain also in which cases it would be impossible for user-level programs t
Question: (a) Write down short notes on the different versions of Windows server 2003 mentioned below: 1. Windows Server 2003, Web Edition 2. Windows Server 2003, Stand
In fixed portioning scheme, what are the advantages of using unequal- size partitions? With unequal-size partitions there are two probable ways to assign process to partitions.
diffenciet between least recently used and not recently used
Q. What is the occupation of the object manager? Answer: Substance present a generic set of kernel mode interfaces to user mode programs. Objects are influenced by the execut
Present your own fully documented and tested programming example illustrating the prevention of a data race in a parallelised program. This is an example where total number of p
Question 1: (a) Discuss about the evolution of operating systems from mainframe batch systems to mainframe time sharing systems. (b) Explain your understanding of the "sus
Describe swapping technique in UNIX systems. Swapping is used to control memory contention among processes. If there is excessively much memory contention, processes are swappe
Q. A Burroughs B7000/B6000 MCP file is able to be tagged as sensitive data. When such a file is removed its storage area is overwritten by some random bits. For what reason would
Q. Presume that you have a page-reference string for a process with m frames (initially all empty). The page-reference string has length p along with n distinct page numbers
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