A Novel Cache-Utilization Based Dynamic Voltage Frequency Scaling (DVFS) Mechanism for Reliability Enhancements
| Autor: | Yi-Lun Tang, Yi-Yu Liu, TingTing Hwang, Allen C.-H. Wu, Yen-Hao Chen |
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| Rok vydání: | 2016 |
| Předmět: |
Computer science
business.industry Reliability (computer networking) 020208 electrical & electronic engineering Cache-only memory architecture 02 engineering and technology Parallel computing 020202 computer hardware & architecture Embedded system Metric (mathematics) 0202 electrical engineering electronic engineering information engineering Cache Static random-access memory business Energy (signal processing) |
| Zdroj: | DATE |
| Popis: | We propose a cache architecture using a 7T/14T SRAM [1] and a control mechanism for reliability enhancements. Our control mechanism differs from the conventional DVFS methods, which considers not only the CPI behaviors but also the cache utilizations. To measure cache utilization, a novel metric is proposed. The experimental results show that our proposed method achieves thousand times less bit-error occurrences compared to the conventional DVFS methods under the ultra-low voltage operation. Moreover, the results show that our proposed method surprisingly not only incurs no performance and energy overheads but also achieves on an average 5.1% performance improvement and 5% energy reduction compared to the conventional DVFS methods. |
| Databáze: | OpenAIRE |
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