Multilevel cache system
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United States of America Patent
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Mar 22, 2016
Grant Date -
Dec 26, 2013
app pub date -
Jun 26, 2013
filing date -
Jun 26, 2012
priority date (Note) -
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Abstract
Fetching a cache line into a plurality of caches of a multilevel cache system. The multilevel cache system includes at least a first cache, a second cache on a next higher level and a memory, the first cache being arranged to hold a subset of information of the second cache, the second cache being arranged to hold a subset of information of a next higher level cache or memory if no higher level cache exists. A fetch request is sent from one cache to the next cache in the multilevel cache system. The cache line is fetched in a particular state into one of the caches, and in another state into at least one of the other caches.
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