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，在该环境中可以启用用于CPU时间预留的调度理论和资源管理框架。调度理论通过在虚拟机内集成CPU时间预留请求，使得为虚拟机提供足够的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，并在虚拟机中调度任务。因此，必须集成CPU时间预留请求，以便操作系统可以调度虚拟机以满足其内部的CPU时间预留请求。资源管理框架的作用是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，虚拟机为每个任务重新分配CPU时间，从而满足任务的CPU时间预留请求。我们还开发了一个虚拟机环境的原型，其中可以成为上述调度理论和资源管理框架的基础。该原型机运行在Intel IA-32处理器上，并支持Linux和RTOS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