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High Performance PCM&DRAM Hybrid Memory System
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 Title & Authors
High Performance PCM&DRAM Hybrid Memory System
Jung, Bo-Sung; Lee, Jung-Hoon;
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In general, PCM (Phase Change Memory) is unsuitable as a main memory because it has limitations: high read/write latency and low endurance. However, the DRAM&PCM hybrid memory with the same level is one of the effective structures for a next generation main memory because it can utilize an advantage of both DRAM and PCM. Therefore, it needs an effective page management method for exploiting each memory characteristics dynamically and adaptively. So we aim reducing an access time and write count of PCM by using an effective page replacement. According to our simulation, the proposed algorithm for the DRAM&PCM hybrid can reduce the PCM access count by around 60% and the PCM write count by 42% given the same PCM size, compared with Clock-DWF algorithm.
Hybrid memory;Page management method;Page prefetching;Memory characteristics;
 Cited by
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