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The
working-set model
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Allocation
of page frames
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Paging
daemons
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A
background process that periodically inspects
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memory
looking for pages to evict based on the page
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replacement
algorithm
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The
contents of the page may be remembered in case
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the
page is needed again before it gets overwritten
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Locking
pages
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A
page is locked in memory to prevent its
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replacement.
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Page
locks are needed to allow I/O operations to
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complete
before the page to which I/O is being done
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gets
replaced
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An
alternative is to use system buffers to do I/O.
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Page
sharing
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Page
size
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