Simultaneously Optimizing DRAM Cache Hit Latency and Miss Rate via Novel Set Mapping Policies

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Storage
Format: PDF
Two key parameters that determine the performance of a DRAM cache based multi-core system are DRAM cache Hit Latency (HL) and DRAM cache Miss Rate (MR), as they strongly influence the average DRAM cache access latency. Recently proposed DRAM set mapping policies are either optimized for HL or for MR. None of these policies provides a good HL and MR at the same time. This paper presents a novel DRAM set mapping policy that simultaneously targets both parameters with the goal of achieving the best of both to reduce the overall DRAM cache access latency.
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