Virtual machine allows users to create copy save checkpoint read and modify

Virtual machine allows users to create copy save

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host machine. Virtual machine allows users to create, copy, save (checkpoint), read and modify, share, migrate and roll back the execution state of machine with all the ease of manipulating a file. This flexibility provides significant value for users and administrators. Figure 1. Architecture of virtual machine system In a virtual machine system, the virtualization technology, the resource scheduling technology, the migration technology and the security technology play some key roles in determining the overall fairness and performance characteristics of the virtualized system. Traditionally, the virtual machine system has focused on fairly sharing the processor resources among domains. However, this can cause poor and/or unpredictable the quality of service of system. With the rapid growth of hardware and software resources, the performance evaluation of resource service in virtual machine system is becoming more and more important. Therefore, it becomes a key factor to improve the service performance of virtual machine system. In this paper, we try to describe the current technology and present the future trends of virtual machine system. In the current technology of virtual machine system, we will mainly describe the virtualization technology, the resource scheduling technology, the migration technology, the security technology and the performance evaluation technology. In the future trends of virtual machine system, we will mainly present an overview of the future CPU architecture, the management mode of future memory and resource, the future maintaining method of system security and the performance evaluation method of future multiple virtual machine system. The rest of this paper is organized as follows: Section 2 describes the current technology of virtual machine system. Section 3 presents the future trends of virtual machine system. Finally, Section 4 presents some conclusion. II. CURRENT TECHNOLOGY Currently, the virtualization technology, the resource scheduling technology, the migration technology, the security technology and the performance evaluation technology have become the key technologies of virtual machine system. In order to understand the development state of virtual machine system, these key technologies are shown as follows, respectively. A. Virtualization Virtualization was first developed in 1960’s by IBM Corporation, originally to partition large mainframe computer into several logical instances and to run on single physical mainframe hardware as the host. By day to day development, virtualization technology has rapidly attains popularity in computing. In fact, it is now proven to be a fundamental building block for today’s computing. The virtualization layer is the software responsible for hosting and managing all virtual machines on virtual machine monitor. Currently, virtualization approaches use either a hosted, or hypervisor architecture [4]. A hosted architecture installs and runs the virtualization layer as an application on top of an operating system, and supports the broadest range of hardware configurations. In contrast,
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  • Fall '16
  • Sir Adnan
  • virtual machine

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