Köitmisjaotuse

Köitmisjaotuse, also known as "paging" in English, is a memory management technique used in operating systems to manage the physical memory and the storage of data. It involves dividing the virtual memory space into fixed-size blocks called pages, which are then mapped to physical memory frames. This process allows the operating system to efficiently manage memory by loading only the necessary pages into physical memory, while keeping the rest on disk.

The primary advantage of köitmisjaotuse is its ability to provide a larger virtual address space than the available physical memory. This is achieved by using a page table, which keeps track of the mapping between virtual pages and physical frames. When a process accesses a page that is not currently in physical memory, a page fault occurs, and the operating system loads the required page from disk into memory.

Another benefit of köitmisjaotuse is its support for memory protection and sharing. Each process has its own page table, allowing the operating system to enforce memory protection by preventing processes from accessing each other's memory. Additionally, multiple processes can share the same physical pages, reducing memory usage and improving performance.

However, köitmisjaotuse also has some drawbacks. The process of loading pages from disk into memory can introduce latency, as the operating system must wait for the disk to read the required data. Furthermore, the page table itself can consume a significant amount of memory, especially for systems with large virtual address spaces.

In summary, köitmisjaotuse is a crucial memory management technique that enables operating systems to efficiently manage physical memory and provide a larger virtual address space. While it offers advantages such as memory protection and sharing, it also has limitations related to latency and memory consumption.