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ops 4.3
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5
Archaeology
Kindergarten
06/25/2009

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Cards

Term
With ___________ virtual memory, pages are only loaded when they are needed during program execution; pages that are never accessed are never loaded into physical memory.
Definition
Demand paged
Term
When a process accesses a page that was not brought into memory a __________ occurs.
Definition
Page fault
Term
The OPT or MIN page replacement algorithm is:
Definition
Replace the page that will not be used for the longest period of time
Term
The LRU (least-recently used) page replacement algorithm states:
Definition
When a page must be replaced, LRU chooses the page that has not been used for the longest period of time.

LRU associates with each page the time of that page's last use.

Term
A process is ________ if it is spending more time paging than executing
Definition
Thrashing
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