Re: [Xen-users] Improving the performance of a Xen VM

[Stefan Vroom <smavroom@xxxxxxxxx>]

If I understand correctly PV drivers must be available on the operating system of the unprivileged domain (our operating system). If this is true we only have access to emulated devices which I currently use. The operating system itself has drivers for realtek8139, 8169, pcnet, e100 and e100 I believe. However I could not get all of the emulated drivers to work. Pcnet worked but as said the results aren't quite satisfying.

On 15 May 2014 16:44, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:

On Thu, 2014-05-15 at 16:24 +0200, Stefan Vroom wrote:
> I am working for a company to get their operating system optimised in
> a virtual environment. It's a 32-bit Unix derivative, capable of
> real-time computing. I've tested the performance of several devices
> independently to conclude that the overall performance is lacking. VGA
> performance is irrelevant but disk performance and network performance
> are crucial and still inefficient.

Do you have PV drivers for disk and network or are you using the
emulated devices?

Ian.

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