Continuous Performance Analysis of Fault-Tolerant Virtual Machines
Continuous Performance Analysis of Fault-Tolerant Virtual Machines
复制标题
容错虚拟机的持续性能分析
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
O. Spinczyk
中科院分区：
文献类型：
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作者：
B. Jablkowski;O. Spinczyk
虚拟机技术已经成功地应用于容错计算系统的构建。例如，vmware Fault Tolerance和Xen Remus支持在局域网中的不同物理机器上运行的VM的透明故障转移。但是，在许多应用程序域中，仅仅有高可用性是不够的。特别是在与物理环境相互作用的网络物理系统的背景下，必须满足实时约束以避免损坏。因此，我们正在研究基于虚拟机的容错与性能分析技术的结合，即实时演算的模块化性能分析。这种增强的系统将在任何时候都知道其自身的性能，并且可以在故障的情况下使用该信息进行更智能的重新配置决策。本文将勾勒出底层模型，设想的系统架构，并讨论有益的应用场景。
Virtual machine technology has been successfully applied for the construction of fault-tolerant computing systems. For example, vmware Fault Tolerance and Xen Remus support transparent failover of VMs running on different physical machines in a local area network. However, high availability alone is in many application domains not sufficient. Especially in the context of Cyber-Physical Systems, which interact with the physical environment, realtime constraints have to be fulfilled in order to avoid damage. Therefore, we are working on the combination of VM-based fault tolerance with a performance analysis technique, namely the modular performance analysis with real-time calculus. Such enhanced system would at any time be aware of its own performance and could use this information for smarter reconfiguration decisions in case of faults. This paper will sketch the underlying model, the envisioned system architecture, and discuss beneficial application scenarios.