A Study on CPU Time Reservation for QoS Guarantee in a Virtual Machine Environment

虚拟机环境下CPU时间预留保证QoS的研究

• 批准号: 17500015
• 负责人: OIKAWA Shuichi
• 金额: $ 1.73万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17500015/
• 关键词: Operating Systems; Virtual Machines; QoS; Scheduling

We studied a virtual machine environment, in which the scheduling theory and the resource management framework for CPU time reservation can be enabled. The scheduling theory makes it possible to give enough CPU time to a virtual machine by integrating CPU time reservation requests within the virtual machine. In a virtual machine environment, there are two scheduling levels, one at an operating system and the other in a virtual machine. The operating system schedules a virtual machine, and a task is scheduled in the virtual machine. Therefore, CPU time reservation requests must be integrated, so that the operating system can schedule a virtual machine in order to meet the CPU time reservation requests within it. The resource management framework takes a role of actually assigning the CPU time based on the scheduling theory. The framework gives the scheduling parameter of a virtual machine to the operating system kernel, and the virtual machine reassigns CPU time to each task, so that the task's CPU time reservation request is fulfilled.We also developed a prototype of a virtual machine environment, which can become the base of the scheduling theory and the resource management framework described above. The prototype operates on the Intel IA-32 processor, and supports Linux and RTOS as operating systems.

我们研究了一个虚拟机环境，在其中可以启用调度理论和资源管理框架的CPU时间预留。调度理论使得通过在虚拟机内集成CPU时间预留请求来给予虚拟机足够的CPU时间成为可能。在虚拟机环境中，有两个调度级别，一个在操作系统中，另一个在虚拟机中。操作系统调度虚拟机，并且在虚拟机中调度任务。因此，CPU时间预留请求必须被集成，以便操作系统能够调度虚拟机以满足其内部的CPU时间预留请求。资源管理框架根据调度理论实际分配CPU时间。该框架将虚拟机的调度参数交给操作系统内核，由虚拟机将CPU时间重新分配给各个任务，从而完成任务的CPU时间预留请求，并开发了一个虚拟机环境原型，为上述调度理论和资源管理框架奠定了基础。该原型在Intel IA-32处理器上运行，并支持Linux和RTOS作为操作系统。

项目成果

Experiences of Building Linux/RTOS Hybrid Operating Environments on Virtual Machine Monitors

在虚拟机监视器上构建Linux/RTOS混合运行环境的经验

• 发表时间: 2006
• 期刊: IJCSNS International Journal of Computer Science and Network Security 6・5A
• 作者: Shuichi Oikawa;Megumi Ito
• 通讯作者: Megumi Ito