A New DVFS Algorithm Design for Multi core Processor Chip
With the development of the CMOS process, beyond 3 billion of transistors are integrated on chip. But the increasing power density becomes a serious problem making the performance improvement slow down. Therefore, how to optimize the power consumption of multi core processor is a crisis in processor design. This paper proposes a dual threshold adaptive DVFS algorithm to dynamically control the processor voltage and frequency. Comparing with traditional single threshold algorithm, experimental results show that dual threshold adaptive DVFS can save more power with no obviously performance reduction. The performance of most benchmarks is beyond 90% of the original performance, while the power optimization can be up to 35%
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