Dynamic prioritization of cache access
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United States of America Patent
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Jul 1, 2014
Grant Date -
Jun 13, 2013
app pub date -
Dec 12, 2011
filing date -
Dec 12, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Some embodiments of the inventive subject matter are directed to a cache comprising a tracking unit and cache state machines. In some embodiments, the tracking unit is configured to track an amount of cache resources used to service cache misses within a past period. In some embodiments, each of the cache state machines is configured to, determine whether a memory access request results in a cache miss or cache hit, and in response to a cache miss for a memory access request, query the tracking unit for the amount of cache resources used to service cache misses within the past period. In some embodiments, the each of the cache state machines is configured to service the memory access request based, at least in part, on the amount of cache resources used to service the cache misses within the past period according to the tracking unit.
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