CACHE CONTROL DEVICE AND CACHE CONTROL METHOD
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United States of America Patent
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Issued Date -
Mar 3, 2016
app pub date -
Jul 29, 2015
filing date -
Aug 28, 2014
priority date (Note) -
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Abstract
A cache control device includes: a processor to execute a procedure including: collecting request information indicating an amount of request received by each of nodes from outside of a system; estimating a propagation amount of the request transferred within the system due to a cache miss based on the request information, an initial TTL value set in nodes indicating a time during which data is stored in a cache memory, and delivery tree root information indicating a delivery tree route; estimating a total cost for storing and delivering data corresponding to the request based on the propagation amount of the request estimated, memory cost information indicating a cost required for storing and delivering a predetermined amount of data, and delivery cost information indicating a cost required for transferring the predetermined amount of data; and updating the initial TTL value so as to reduce the total cost estimated.
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