关键词: 多核, 桌面虚拟化, 交互式性能, I/O特征, 调度协同

Abstract: Full virtualization is vastly applied in desktop virtualization. Although hardware-assisted virtualization greatly improves the performance, the interactive performance is still a bottleneck for full virtualization. Interactive performance is mainly influenced by I/O devices. In one hand, I/O devices are slow device. In another hand, they are often shared by multiple virtual machines through simulation. This paper improves the interactive performance of full virtualization. Firstly, it investigates virtual machine deployment to ensure stable performance of the whole system and individual virtual machine. Secondly, it dynamically adjusts the resource among virtual machines based on the interactive behavior of individual machine. Thirdly, it optimizes the I/O request scheduler in term of the virtualization implementation. Finally, the experimental results prove the validity of the improved method.

Key words: multi-core, desktop virtualization, interactive performance, I/O feature, coordinated scheduling