Method and apparatus for managing buffer cache to perform page replacement by using reference time information regarding time at which page is referred to
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United States of America Patent
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May 20, 2014
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app pub date -
Mar 28, 2012
filing date -
Mar 28, 2012
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Abstract
A method and apparatus manages a buffer cache. An extended buffer is used to perform a page replacement algorithm using reference time information regarding a time at which a page is referred. Pages replaced through the page replacement algorithm, when re-referred to, may be retrieved from the extended buffer, instead of a hard disk. As a result, write/read operations with respect to the disk are made efficient and the page input/output speed is increased.
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