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- Page release : user process automatically says - this page not needed (from its
working set)
- Size Matters !! : Size of page frames and pages : Small size
lots of diversity within store, as can store many different pages simultaneously, however, too many requests to disk if need to load small units
Large size
not all of the contents of a page may be used
- Should pages be the same as disk blocks ? 512 K to 1024 K on Unix (or maybe multiples
of them) ?
- Possible that not all of a page is used : leads to fragmentation - so small the page size
lesser the fragmentation
Remember : Programs spend 90 a heuristic to design your OS).
Omer F Rana
Thu Feb 13 12:31:55 GMT 1997