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What else can I help you with?
What type of fragmentation is there in paging and why?
external fragmentation use in paging
What are the disadvantages of paging and segmentation?
Paging can lead to internal fragmentation, where allocated memory may not be fully utilized, as pages are fixed-size blocks. Segmentation, while allowing for variable-sized blocks, can suffer from external fragmentation as segments grow and shrink, potentially wasting memory space. Additionally, both methods can introduce overhead in managing the page table or segment table, impacting performance. Lastly, the combination of both techniques can complicate memory management further.
When could fragmentation of the paging file occur?
If a paging file resides on a partition that contains other data, it may experience fragmentation as it expands to satisfy the extra virtual memory that is required.
Which one produces better solution for fragmentation segmentation or paging?
Paging generally produces better solutions for fragmentation compared to segmentation. This is because paging eliminates external fragmentation by dividing memory into fixed-size pages, allowing processes to be loaded into any available memory frame. In contrast, segmentation can lead to external fragmentation as segments can vary in size, potentially leaving unusable gaps in memory. Therefore, while both methods manage memory allocation, paging is often more efficient in handling fragmentation issues.
Compare the memory organization schemes of contiguous memory allocation, pure segmentation, and pure paging with respect to the following issues External fragmentation?
Contiguous memory allocation scheme suffers from external fragmentation as address spaces are allocated contiguously and holes develop as old processes die and new processes are initiated. It also does not allow processes to share code, since a process's virtual memory segment is not broken into non-contiguous fine-grained segments. Pure segmentation also suffers from external fragmentation as a segment of a process is laid out contiguously in physical memory and fragmentation would occur as segments of dead processes are replaced by segments of new processes. Segmentation, however, enables processes to share code; for instance, two different processes could share a code segment but have distinct date segments. Pure paging does not suffer from external fragmentation, but instead suffers from internal fragmentations. Processes are allocated in page granularity and if a page is not completely utilized, it results in internal fragmentation and a corresponding wastage of space. Paging also enables processes to share code at the granularity of pages.
Can paging solve the problems of internal fragmention and external fragmentation?
By paging I am assuming you mean the page file which cannot be defragmented whilst you are running windows. therefore you need a defragmenter that perfomes an offline defrag. I assume too that is what you meant by external fragmentation. Companies like RAXCO, offer an offline defragmenter which does solve your problem assuming I have understood it correctly.
When does fragmentation of the paging file occur?
Because sharks get their teeth cleamed by fish in the sea weed
What performance-degrading issue is that the paging file subject to if it moved to a partition containing data?
Fragmentation
Give one reason you should make the paging file maximum size the same as the paging file initial size?
In order to prevent page file fragmentation.
What are the advantages AND disadvantages of paging and segmentation?
Paging Paging works by dividing memory into small pieces of memory (frames) and then logically divides the program into same-size pieces (pages). Paging Advantages Easy to allocated from free list of frames -Physical memory is allocated from free list of frames -External Fragmentation is not a problem Easy to "page out" chunks of programs -All Chunks are the same size (page size) -Use valid bit to detect references to "paged-out" pages Paging Disadvantages Can Still have internal fragmentation -process may not use memory in exact multiples of pages Memory reference overhead -2 references per address lookup Memory required to hold page tables can be large
Explain internal external fragmentation give the best suted solution to the fragmentation?
explain fragmentation?
Is relocatable Dynamic Memory external or internal fragmentation?
external fragmentation
