[pve-devel] win8r2 virtio net problems

[Alexandre DERUMIER]

Hi, I never reach myself more than 900Mbits with windows guest. (2003 > 2012, any virito driver

But 30mbit/s seem very slow.

Maybe trying to play with disabling offloading options (in windows guest driver options) ?  gro,gso,... 


----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 28 Mars 2014 15:07:23 
Objet: [pve-devel] win8r2 virtio net problems 



Hi all, 

we just observed bad performance values with virtio network on win8r2 guests. 

A simple iperf from a VM to the host shown about 700Mbit/s. 

Even worse, iperf between 2 win8r2 guests on the same bridge shown below 30Mbit/s. 

Using linux VMs, I am able to get > 9Gbit/s. 

I already made all optimizations suggested at: 

http://pve.proxmox.com/wiki/Paravirtualized_Network_Drivers_for_Windows 

Any ideas? 

_______________________________________________ 
pve-devel mailing list 
pve-devel at pve.proxmox.com 
http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel