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Method and apparatus for prefetching data to a lower level cache memory
   
Document Number
US Patent 7383418
Issued Date
June 3, 2008
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Abstract
A prefetching scheme to detect when a load misses the lower level cache and hits the next level cache. Consequently, the prefetching scheme utilizes the previous information for the cache miss to the lower level cache and hit to the next higher level of cache memory that may result in initiating a sidedoor prefetch load for fetching the previous or next cache line into the lower level cache. In order to generate an address for the sidedoor prefetch, a history of cache access is maintained in a queue.
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Number of Claims:
2
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Owner
Intel Corporation (Santa Clara, CA)
Published
June 3, 2008
Application Number
10/933,188
Filed
September 1, 2004
US Classification
711/216   710/52 711/117 711/118 711/119 711/137 711/E12.043 711/E12.057
Int'l Classification
G06F   12/00   (20060101)   G06F   9/26   (20060101)   G06F   9/34   (20060101)  
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Assistant Examiner
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USPTO Field of Search
711/122   711/137   711/216  
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