An Approximate Analysis of the Balance between Performance and Power Estimation of Computer and Server Systems by Use of the Batch Service
| Autor: | Yung-Sen Cheng, 鄭永森 |
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| Rok vydání: | 2007 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 In this thesis we analyze performance, utilization and power estimation of computer systems by both adopting the batch service and adjusting the batch size. In addition to reducing system utilization and power consumption, the batch service also maintains an adjustable system performance. When few events are accumulated in the queue, a longer waiting time is needed to reach the threshold value for starting, and therefore we add a time counter in addition to an event counter to be used in conjunction with the batch service. The time counter effectively reduces the mean system response time. Adopting the batch service is regarded as the system mechanism for processing events, but it may affect both system performance and power consumption. We use the queueing model method to analyze the system state and learn the variations and relationships among power consumption, system utilization and mean response time by adjusting the size of the batch service. We also evaluate how to adjust a batch size via a derived equation to obtain a suitable balance among performance, utilization and power estimation for a computer system. Furthermore we adopt the mechanism of the multi-server system to improve the performance of the single-server using the batch service. As we adjust the batch size, we estimate the number of servers to reduce the mean response time and to improve the performance of single-server systems. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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