Title: EVALUATION OF PERFORMANCE OF SMART DEVICES IN CLOSED SYSTEM MODELS

Issue Number: Vol. 6, No. 1
Year of Publication: Jan - 2016
Page Numbers: 23-33
Authors: Cecilia Twinamatsiko, Kyanda Swaib Kaawaase, Michael Okopa
Journal Name: International Journal of New Computer Architectures and their Applications (IJNCAA)
- Hong Kong
DOI:  http://dx.doi.org/10.17781/P002030

Abstract:


Smartphones and tablets are becoming dominant devices in the present market. Apart from offering the same features as traditional mobile phones, smart devices provide several other features as well. Designing Smartphones to balance the tradeoff between minimum power dissipation and increased performance becomes a challenge. This is due to the fact that users try to optimize for mobility and lightness rather than for maximum computing performance and throughput. In an effort to study the performance of smart devices, we modeled the components of smart devices using an M/M/1//N closed queue system. In this model, the number of requests in the system is fixed. The performance of requests under the closed and open system models are compared in terms of average response time. We observe that average response time generally increases with increase in arrival rate, and increase in load values. It is further observed that requests experience lower average response time under the open system model at low arrival rates, low service times and low load compared to closed system model. However, at high arrival rates, high service rates and high load values, requests experience lower response time under the closed system model than under the open system model. The analytical results indicate that closed system models offer better performance at high arrival rates and high load values, whereas open system models offer better performance at low arrival rates and low load values.