Re: [Xen-users] Increasing network performance on Windows DomUs

[Adam Wead <awead@xxxxxxxxxxx>]

On May 4, 2009, at 11:33 PM, Fajar A. Nugraha wrote:

> On Tue, May 5, 2009 at 8:13 AM, Adam Wead <awead@xxxxxxxxxxx> wrote:
> > Thanks, Fajar, and thanks to Javier for the posts to this thread.
> >
> > I was able to install gplpv_chk_wlh_AMD64_0.10.0.55.msi on a new  
> > install of
> > Windows Server 2008 Enterprise, and the network speed did increase.
> >  Previously, with the old drivers, iperf tests reported about 40  
> > Mb/s, now
> > with the GplPv drivers it's about 140 Mb/s, and the NIC on the guest
> > actually says it's running at gigabit speed.  Not bad.
> Ehm, you didn't say that you're running Windows 2008 x64. BE CAREFUL.
>
> When not installed correctly, it can cause disk corruption.
> Please check :
> - how many disks you have now? If previously you have one (c:) but now
> suddenly you have two (c: and d:) wit the same content, then most
> likely your disk is corrupted already
No, I'm still at one disk.

> - open device manager. Which NIC is active? Is it Realtek, or is it  
> the Xen Net?
When I first installed the GplPV drivers, both the Realtek and the  
Xen Net Device driver were active, the latter appearing as Local Area  
Connection 2.  I disabled the Realtek connection and activated the  
Xen driver.  All seems well after a couple of reboots.  I could go  
ahead and remove the Realtek driver completely, but maybe it's a good  
idea to keep it around in case the other goes haywire?
> From my experience I had to do some specific setup (not simply click
> "Next" and reboot) to get it working correctly.
> If you had it working correctly, great! Just to be safe though, you
> should check the above.
Thanks for the caveat.  Other than the disabling/enabling of the  
drivers, it was pretty simple, but I will keep an eye on it.
> > The Shutdown Monitor also installed automagically, and now the guest
> > restarts gracefully...  Thank you, James Harper!
> >
> > Now, if I can only figure out how to sign the driver so I don't  
> > have to go
> > through that annoying process of disabling driver signature  
> > enforcement.
> >  I'd love to hear anyone's experiences with that.  It seems all I  
> > need is
> > the signtool on Windows, but I can't figure out how to actually  
> > get that.
> > Any suggestions are appreciated.
> Again, from experience, testsigning doesn't work correctly with GPLPV.
> Or rather, disk driver works but NIC driver doesn't. I suggest you use
> Ready Driver Plus (try Google for it). Basically it automate some key
> press to select "disable driver signing enforcement" on every boot.
Great.  Testsigning looks to be a pain anyway.  I'll give that a try.

Thanks again for the help.  It's very appreciated!

best,

...adam

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