If there are large blank spaces in each page of the program then internal fragmentation can occur. Smaller pages can remedy this, but the overall amount of pages will then increase, causing slowed execution.
Yes, it does. When more memory is allocated to a block than required, internal fragmentation starts.
external fragmentation use in paging
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.
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.
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.
Fragmentation
Because sharks get their teeth cleamed by fish in the sea weed
internal fragmentation
In order to prevent page file fragmentation.
explain fragmentation?
external fragmentation
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
segmentation