[PVE-User] Network performance problem with Windows 2012 guest

[Eneko Lacunza]

Hi all,

I have a windows 2012 guest running on PVE 3.3-5 (kernel 2.6.32-34-pve) 
. Network is on virtio and disk on RBD.

I've noticed that its tap interface is reporting about 10Mbps on atop, 
and >85% usage on the interface (I'm stunned about this)

Hypervisor has 1Gbps interfaces, one for vm usage, one for proxmox node 
network, two bonded for ceph network.

I've seem very slow network on that VM. Is that normal? Maybe changing 
to Intel e1000 could improve the situation?

Thanks a lot
Eneko

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