Explain lru additional reference bits algorithm, Operating System

Assignment Help:

Additional Reference bits algorithm

Here we keep an 8-bit byte for every page in memory. At standard intervals the reference bit is shifted by the OS. If a shift register contains 00000000 then the page hasn't been used for the last 8 time periods. A page with a history 11000000 is more recently used than 01000000. The no of bits are able to be varied accordingly to the needs of the OS.

Related Discussions:- Explain lru additional reference bits algorithm

DOS, Ask question #Minimum 500 words accepted#

Ask question #Minimum 500 words accepted#

Differences between foreground and background, Describe the differences bet...

Describe the differences between foreground and background processing. What advantage does background processing provide? 1. Background processes typically run with little or no

What is a file, Question 1 What is a file? Write down the operations on fi...

Question 1 What is a file? Write down the operations on files Question 2 What do you mean virtual machine? Write down the application of virtual machine Question 3 What

Deadlock-avoidance algorithm, Regard as a computer system that runs 5000 jo...

Regard as a computer system that runs 5000 jobs per month with no deadlock-prevention or deadlock-avoidance scheme. Deadlocks take place about twice per month and the operator must

Procedures, problems of procedure

problems of procedure

Conservative garbage collection, Conservative GC can be used for languages ...

Conservative GC can be used for languages such as C and C++, which were not explicitly designed for garbage collection. This is a non-copying technique. A conservative garbage coll

Define the dosexecpgm function used in the os/2, Define the DosExecPgm Func...

Define the DosExecPgm Functions used in the OS/2 DosExecPgm (objBuffer, objLen, flags, cmdLine, env, &resultCode, execName) DosExecPgm function is designed to load an execut

Linux, write a linux command to display lines from 25 - 45 of directory "/e...

write a linux command to display lines from 25 - 45 of directory "/edc/password" write a linux command to display directory in /edc

Advanced synchronization in operating system, Recall that condition variabl...

Recall that condition variables are synchronization primitives that enable threads to wait until a particular condition occurs. Generalizing, the combination of locks and condit

Explain the demand paging system, Question : (a) In the demand paging ...

Question : (a) In the demand paging system, when a process tries to access a page that was not brought into memory, a page fault occurs that involves a series of actions. The

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages