Re: [Xen-users] GPLPV or other drivers for win2k8r2?

[Matthias Reif <mattreif@xxxxxxxxxxxxx>]

xen-users-bounces@xxxxxxxxxxxxxxxxxxx wrote on 05/02/2010
09:15:58 AM:

> Hi. I have some new 64bit Windows 2008 R2 domU's running on
> SLES11/xen_3.4.2. What is everyone using to get 1gb network performance
> on win2k8? I've used GPLPV on win2k3, but I see you have to sign the
> drivers yourself for 64bit. Maybe that process isn't difficult, I
only
> glance at the link from gplpv's page. 
> 
> What is everyone using? GPLPV is about the only thing I know of for
> fully virtualized windows guests. 
> 
> Thanks,
> James 

Hi James,

I actually never got the GPLPV drivers to work satisfactorily
on our Win 2008 R2 server, but maybe others have had better success. The
network performance of GPLPV was worse than IOEMU regardless of numerous
different adapter settings that I tried.

I reverted back to using IOEMU and found satisfactory
performance using the e1000 model driver instead of the default Realtek,

ie.

vif = [ 'type=ioemu, mac=00:16:3e:xx:xx:xx, bridge=xenbr0,
model=e1000' ]

With the above I achieve a throughput of approx 30
MBytes per second, which is much less than what some people on this list
reported using GPLPV, but still Gigabit speed and more than enough for
our application.

I also don't have to worry about test signing and/or
disabling driver signature enforcement at every reboot. So far the server
has been a rock solid performer.


Matthias


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