Storage

Register Allocation for Write Activity Minimization on Non-volatile Main Memory

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Executive Summary

Non-volatile memories are good candidates for DRAM replacement as main memory in embedded systems and they have many desirable characteristics. Nevertheless, the disadvantages of non-volatile memory co-exist with its advantages. First, the lifetime of some of the non-volatile memories is limited by the number of erase operations. Second, read and write operations have asymmetric speed or power consumption in nonvolatile memory. This paper focuses on the embedded systems using non-volatile memory as main memory. The authors propose register allocation technique with re-computation to reduce the number of store instructions.

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