https://scholars.lib.ntu.edu.tw/handle/123456789/489921
標題: | Impact of memory frequency scaling on user-centric smartphone workloads. | 作者: | Mendis, Hashan R. Chen, Wei-Ming Indrusiak, Leandro Soares Kuo, Tei-Wei Hsiu, Pi-Cheng TEI-WEI KUO |
關鍵字: | Memory frequency; Smartphone workload characterisation | 公開日期: | 2018 | 起(迄)頁: | 567-574 | 來源出版物: | Proceedings of the 33rd Annual ACM Symposium on Applied Computing, SAC 2018, Pau, France, April 09-13, 2018 | 摘要: | Improving battery life in mobile phones has become a top concern with the increase in memory and computing requirements of applications with tough quality-of-service needs. Many energy-efficient mobile solutions vary the CPU and GPU voltage/frequency to save power consumption. However, energy-aware control over the memory bus connecting the various on-chip subsystems has had much less interest. This measurement-based study first analyse the CPU, GPU and memory cost (i.e. product of utilisation and frequency) of user-centric smartphone workloads. The impact of memory frequency scaling on power consumption and quality-of-service is also measured. We also present a preliminary analysis into the frequency levels selected by the different default governors of the CPU/GPU/memory components. We show that an interdependency exists between the CPU and memory governors and that it may cause unnecessary increase in power consumption, due to interference with the CPU frequency governor. The observations made in this measurement-based study can also reveal some design insights to system designers. © 2018 ACM. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/489921 | DOI: | 10.1145/3167132.3167194 | SDG/關鍵字: | Cellular telephone systems; Electric power utilization; Energy efficiency; Governors; Quality of service; Smartphones; Battery life; Design insights; Energy efficient; Frequency-scaling; Measurement-based studies; Mobile solutions; Preliminary analysis; System designers; Dynamic frequency scaling |
顯示於: | 資訊工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。