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With increasing pressure on memory bandwidth, there have been a number of proposals that improve the cache replacement policy. These mechanisms monitor the cache blocks while they are in the cache and evict blocks that are deemed to have low temporal locality. However, a majority of these mechanisms are agnostic to the temporal locality of a missed block and follow a single insertion policy for all incoming blocks. There is comparatively very little work on mechanisms to distinguish between missed blocks based on their temporal reuse behavior. Prior work has shown that distinguishing missed blocks based on their temporal locality and choosing the insertion policy on a per-block basis can significantly improve performance.
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