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ADAPTIVE CACHE PREFETCHING BASED ON COMPETING DEDICATED PREFETCH POLICIES IN DEDICATED CACHE SETS TO REDUCE CACHE POLLUTION

  • US 20150286571A1
  • Filed: 04/04/2014
  • Published: 10/08/2015
  • Est. Priority Date: 04/04/2014
  • Status: Abandoned Application
First Claim
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1. An adaptive cache prefetch circuit for prefetching cache data into a cache, comprising:

  • a miss tracking circuit configured to update at least one miss state based on a cache miss resulting from an accessed cache entry in;

    at least one first dedicated cache set in a cache for which at least one first dedicated prefetch policy is applied, and at least one second dedicated cache set in the cache for which at least one second dedicated prefetch policy, different from the at least one first dedicated prefetch policy, is applied; and

    a prefetch filter configured to select a prefetch policy from among the at least one first dedicated prefetch policy and the at least one second dedicated prefetch policy based on the at least one miss state of the miss tracking circuit.

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