Queue arrays in network devices
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United States of America Patent
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Feb 19, 2013
Grant Date -
May 12, 2011
app pub date -
Nov 8, 2010
filing date -
Jan 4, 2002
priority date (Note) -
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Abstract
A queue descriptor including a head pointer pointing to the first element in a queue and a tail pointer pointing to the last element in the queue is stored in memory. In response to a command to perform an enqueue or dequeue operation with respect to the queue, fetching from the memory to a cache only one of either the head pointer or tail pointer and returning to the memory from the cache portions of the queue descriptor modified by the operation.
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