CompSC: Live Migration with Pass-Through Devices

Provided by: Tsihai
Topic: Virtualization
Format: PDF
Live migration is one of the most important features of virtualization technology. With regard to recent virtualization techniques, performance of network I/O is critical. Current network I/O virtualization (e.g. Para-virtualized I/O, VMDq) has a significant performance gap with native network I/O. Pass-through network devices have near native performance, however, they have thus far prevented live migration. No existing methods solve the problem of live migration with pass-through devices perfectly. In this paper, the authors propose CompSC: a solution of hardware state migration that will enable the live migration support of passthrough devices.

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