GATE - 1997 | OS | Dirty bit for a page in a page table
Posted on 01-03-2022
GATE - 1997 [Operating System]
Question:
Dirty bit for a page in a page table
|
A |
helps avoid unnecessary writes on a paging device |
|
B |
helps maintain LRU information |
|
C |
allows only read on a page |
|
D |
None of the above |
Solution:
Option (A) is Correct.
The dirty bit allows for a performance optimization i.e., Dirty bit for a page in a page table helps to avoid unnecessary writes on a paging device.
Thank You