KVM VirtIO paravirtualized drivers: why they matter

Written by Gionatan Danti on . Posted in Virtualization

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Conclusions

It is obvious that the paravirtualized drivers are an important piece of the KVM ecosystem. While the fully virtualized drivers are quite efficient and the only way to support a large variety of guest OSes, you should really use a paravirtualized driver if available for your guest virtual machine.

Obviously performance are only part of the equation, stability being even more important. Anyway I found the current VirtIO drivers release very stable, at least with the tested guests.

In short: when possible, use the VirtIO paravirtualized drivers!

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Have a nice day!

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