[pve-devel] win8r2 virtio net problems

[Cesar Peschiera]

Hi Dietmar
Please see this link:
http://lists.gnu.org/archive/html/qemu-devel/2013-04/msg04382.html

----- Original Message ----- 
From: "Alexandre DERUMIER" <aderumier at odiso.com>
To: "Dietmar Maurer" <dietmar at proxmox.com>
Cc: <pve-devel at pve.proxmox.com>
Sent: Saturday, March 29, 2014 8:22 AM
Subject: Re: [pve-devel] win8r2 virtio net problems


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