Re: [Xen-users] How to set up 1GBit NIC for "Other template" on XCP 1.5

[Mark Schneider <ms@xxxxxxxxxxxxxxxxxxxxxx>]

Am 14.04.2012 21:18, schrieb Simon Hobson:
> Mark Schneider wrote:
>
> > When installing e.g. Ubuntu 11.10 there is RTL-8139 with "only 
> > 10/100MBit".
> I assume you are talking about installing a PV guest, and this is the 
> only NIC that shows up ? You needn't worry as this is a virtual NIC, 
> there is actually nothing explicitly limiting data rates as there is 
> with a real NIC (where rates are determined by hardware).
> The actual rate achieved will be limited by the real NICs in the host, 
> and the ability of the networking thread in Dom0 to shift the bits 
> around.
Thanks a lot for your hint Simon.

I use "Other template" and it is (as far I understood) HVM.

When transfering big size image from another stand alone server to the 
VM (ubuntu 11.10) I have 4 to 12MBit/s only (and I saw RTL-8139 during 
installation of this ubuntu-VM).
I have tested it yet also with CentOS 6.2 on the same XCP-host (I used 
"Other template" for the VM too) and got network speed a bit over 
30MBit/s. It would be to fast for 100MBit/s, so I am a bit confused now.
On bare metal I am getting over 70MBit/s (the host is an HP DL385g7 
machine).
I use bounded interfaces however only one port is connected to the 
switch at the moment.
--
ms@xxxxxxxxxxxxxxxxxxxxxx

http://rsync.it-infrastrukturen.org


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