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A working
set of a process is used to model the
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dynamic
locality of its memory usage
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Working
set = set of pages a process currently needs
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Denning
in late 60’s
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Definition:
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WS(t,w)
= set of pages referenced in the interval
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between
time t-w and time t
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t
is time and w is working set window (measured in page refs)
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Page
is in working set only if it was referenced in last w
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references
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