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In this paper, we propose a general simulation platform integrated with a general failure model framework. Based on our simulation platform, we investigate the implications of system failures on virtualization platform. Meanwhile, we investigate the capability of virtualization platform's recovery mechanism, both reactive and proactive ones. In fact, we find that proactive recovery, in terms of both...
As one of the most important enabling technologies of cloud computing, virtualization brings to HPC good manageability, online system maintenance, performance isolation and fault isolation. Furthermore, previous study on VMM-bypass I/O that virtualizes OS-bypass networks (e.g. InfiniBand) relieved the worry of performance degradation coming along with virtualization. In this paper, we address the...
As one of the key characteristics of virtualization, live virtual machine (VM) migration provides great benefits for load balancing, power management, fault tolerance and other system maintenance issues in modern clusters and data centers. Although Pre-Copy is a widespread used migration algorithm, it does transfer a lot of duplicated memory image data from source to destination, which results in...
The overhead caused by virtualization makes it difficult to apply VM in the applications which require high degrees of both performance isolation and efficiency, such as the high performance computing. In this paper, we present a lightweight virtual machine, named Solo. It simplifies the design of VMM greatly by making most privileged instructions bypass the VMM, except the I/O operations. Solo allows...
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