Paging supervisor - computer architecture, Computer Engineering

Assignment Help:

Paging supervisor:

This part of the operating system built and manages the page tables. If the  due to dynamic address translation hardware a page fault occurs exception then the paging supervisor searches the page space on secondary storage for the page containing the needed virtual address, reads it into real physical memory and updates the page tables to reflect the new location of the virtual address and lastly tells the dynamic address translation mechanism to begin the search again. typically all of the real physical memory is already in use and the paging supervisor have to first save an area of real physical memory to disk and update the page table to say that the connected virtual addresses are no longer in real physical memory but saved on disk. Paging supervisors usually save and overwrite areas of real physical memory which have been least recently used, because these are probably the areas which are used least frequently. So each time the dynamic address translation hardware matches a virtual address with a real physical memory address, it has to put a time-stamp in the page table entry for that virtual address.

 

 


Related Discussions:- Paging supervisor - computer architecture

Era of first generation computers, Q. Era of first generation computers? ...

Q. Era of first generation computers? The trends that were encountered at the time of the era of first generation computers were: Centralized control in a single CPU (al

Difference among activity and sequence diagram, a. Activity diagram: Activi...

a. Activity diagram: Activity diagram is used for functional modelling. Captures the process flow. b.  Sequence diagram :  Sequence diagram is  used for dynamic modeling.

Minimax algorithm - artificial intelligence, Minimax algorithm - artificial...

Minimax algorithm - artificial intelligence: The minimax algorithm is so called because it assumes that you and your opponent are going to act rationally, so that if you will

What is a manifest, What is a Manifest?  An assembly manifest contains...

What is a Manifest?  An assembly manifest contains all the metadata required to specify the assembly's version requirements and security identity, and all metadata required to

The maximum number of dimensions an array can have in c, The maximum number...

The maximum number of dimensions an array can have in C is C permits arrays of three or more dimensions. The exact limit is examined by the compiler.

How i-o interface communicate with processor, Q. How I-O interface communic...

Q. How I-O interface communicate with processor? The above illustration clearly specifies need communication between processor and I/O interface. This communication includes su

Analog-to-digital conversion process, A stationary random displacement sign...

A stationary random displacement signal was digitised at 64 samples a second and analysed to obtain an auto-spectral density.  The signal was calibrated in mm units.  The frame siz

Define buffering, Define buffering.  A buffer is a memory area that kee...

Define buffering.  A buffer is a memory area that keeps data while they are transferred among two devices or among a device and an application. Buffering is done for three reas

Define variants of turing machine, Define variants of Turing Machine?  ...

Define variants of Turing Machine?  Variants are  Non deterministic turing machine.  Mutlitape turing  machine.  Enumerators

What is random access memory, Q. What is Random Access Memory? We will ...

Q. What is Random Access Memory? We will discuss RAM as an example of sequential circuit. A memory unit is a collection of storage cells or flip flops along with associated cir

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd