Virtualization

Performance Modeling of Virtual Machine Live Migration

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Executive Summary

System virtualization is becoming pervasive and it is enabling important new computing diagrams such as cloud computing. Live Virtual Machine (VM) migration is a unique capability of system virtualization which allows applications to be transparently moved across physical machines with a consistent state captured by their VMs. Although live VM migration is generally fast, it is a resource-intensive operation and can impact the application performance and resource usage of the migrating VM as well as other concurrent VMs. However, existing studies on live migration performance are often based on the assumption that there are sufficient resources on the source and destination hosts, which is often not the case for highly consolidated systems.

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