Hello all.
As there's very little info about network performance in KVM on the web,
let's share your experience or findings about running KVM guests with
non-trivial network traffic (like iSCSI access, fileservers etc.).
- Do you enable KVM guests to directly use host's PCI network interface
via VT-d? Is performance comparable to native performance in host?
- Do you use virtio for emulated interfaces? Does it really improve
performance?
- Do you use VDE? For switching between guests inside the same host,
which has better performance -- VDE or TAP connected by bridge in
host's kernel?
- For connection between guests and real network, which has better
performance -- routing or bridging in the host?
Any other findings to this topic are welcome.
Regards,
-- HH
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