云环境下网络I/O虚拟化的研究与改进  

Research and Improvement of Network I/O Virtualization in the Cloud Environment

作　　者：李莹莹[1] 乔平安[1] 

机构地区：[1]西安邮电大学计算机学院,西安710061

出　　处：《计算机与数字工程》2015年第4期684-688,共5页Computer & Digital Engineering

摘　　要：云计算对网络的共性需求体现在无感知服务、资源动态适配、可靠性保障、虚拟化和安全性等方面,然而,虚拟化作为云计算数据中心的关键技术,就是最大化有限的物理资源提供有效的传输服务。为了解决高速网络I/O虚拟化在面临I/O密集的应用时导致的I/O性能降低问题,论文提出了网络I/O性能的优化方法:一种分层处理I/O调度的网络虚拟化模型,对云平台下的VM应用进行递进式的优化I/O策略。实验结果证明提出的模型能够提高网络I/O的性能并提高硬件资源的充分利用。Generality, cloud computing demands reflected in no perception of network services, dynamic adaptation of resources, the guarantee of reliability, virtualization and security, etc. However, the virtualization as the key technology of cloud computing data center, was tomaximize the limited physical recources for providing effective transporting services. When facing the I/O intensive application in the high-speed network I/O, the optimization method of network I/O perform- ance was put forward. A hierarchical processing network virtualization model of I/O scheduling is a I/O strategy to optimize the VM application progressively under Cloud platform. The experimental results confirmed that the proposed model can im- prove the performance of network I/O and get a better utilization of hardware recources.

关 键 词：云环境 网络I/O虚拟化 调度 I/O MONITOR 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]