Demand Paging is a memory management technique where pages of a process are loaded into physical memory only when they are needed, rather than loading the entire process at once. Implementation Steps: Maintain Page Table: Keep a page table that tracks which pages are in physical memory and their locations. Handle Page Faults: Implement a mechanism to detect page faults and fetch pages from disk when needed. Use Page Replacement Algorithms: Apply algorithms (like FIFO or LRU) to manage memory when replacing pages. Update and Access: Ensure that once a page is loaded, the process can access it using updated page table entries.
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Why the page table doesn't have all data from logical memory?
What is demand paging and how it is implemented?
Demand Paging is a memory management technique where pages of a process are loaded into physical memory only when they are needed, rather than loading the entire process at once.
Implementation Steps:
Maintain Page Table: Keep a page table that tracks which pages are in physical memory and their locations.
Handle Page Faults: Implement a mechanism to detect page faults and fetch pages from disk when needed.
Use Page Replacement Algorithms: Apply algorithms (like FIFO or LRU) to manage memory when replacing pages.
Update and Access: Ensure that once a page is loaded, the process can access it using updated page table entries.
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