Cache usage for concurrent multiple streams
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United States of America Patent
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Issued Date -
Feb 5, 2004
app pub date -
Feb 5, 2003
filing date -
Feb 25, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a system supporting concurrent multiple streams that pass through a cache between memory and the requesting devices, various techniques improve the efficient use of the cache. Some embodiments use adaptive pre-fetching of memory data using a dynamic table to determine the maximum number of pre-fetched cache lines permissible per stream. Other embodiments dynamically allocate the cache to the active streams. Still other embodiments use a programmable timer to deallocate inactive streams.
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