System-wide profiling and optimization with virtual machines

Shih Hao Hung, Tei Wei Kuo, Chi Sheng Shih, Chia Heng Tu

研究成果: Conference contribution

14 引文 斯高帕斯(Scopus)


Simulation is a common approach for assisting system design and optimization. For system-wide optimization, energy and computational resources are often the two most critical limitations. Modeling energy-states of each hardware component and time spent in each state is needed for accurate energy and performance prediction. Tracking software execution in a realistic operating environment with properly modeled input/output is key to accurate prediction. However, the conventional approaches can have difficulties in practice. First, for a complex system such as an Android smartphone, building a cycle-accurate simulation environment is no easy task. Secondly, for I/O-intensive applications, a slow simulation would significantly alter the application behavior and change its performance profile. Thirdly, conventional software profiling tools generally do not work on simulators, which makes it difficult for performance analysis of complicated software, e.g., Java applications executed by the Dalvik virtual machine. Recently, virtual machine technologies are widely used to emulate a variety of computer systems. While virtual machines do not model the hardware components in the emulated system, we can ease the effort of building a simulation environment by leveraging the infrastructure of virtual machines and adding performance and power models. Moreover, multiple sets of the performance and energy models can be selectively used to verify if the speed of the simulated system impacts the software behavior. Finally, performance monitoring facilities can be integrated to work with profiling tools. We believe this approach should help overcome the aforementioned difficulties. We have prototyped a framework and our case studies showed that the information provided by our tools are useful for software optimization and system design for Android smartphones.

主出版物標題ASP-DAC 2012 - 17th Asia and South Pacific Design Automation Conference
出版狀態Published - 2012
事件17th Asia and South Pacific Design Automation Conference, ASP-DAC 2012 - Sydney, NSW, Australia
持續時間: 2012 一月 302012 二月 2


名字Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC


Other17th Asia and South Pacific Design Automation Conference, ASP-DAC 2012
城市Sydney, NSW

All Science Journal Classification (ASJC) codes

  • 電腦科學應用
  • 電腦繪圖與電腦輔助設計
  • 電氣與電子工程


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