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Re: [Xen-devel][PATCH][RFC] Supporting Enlightened Windows2008Server

On 7/4/08 15:28, "Ky Srinivasan" <ksrinivasan@xxxxxxxxxx> wrote:

> I do. On the NetBench runs we did, we were seeing close to 10% improvement. I
> will keep you posted on other benchmark results as they become available.

I forgot to ask in my previous email what the configuration was for this
netbench test. For example, was it a UP or SMP guest? Where did the netbench
clients run? Did you run with PV drivers?

The latter is particularly relevant, as measuring I/O performance of an HVM
guest without PV I/O drivers is particularly useful. Unfortunately I'm not
sure whether anyone has got the GPL PV drivers working with Server 2008 as
yet. But if not that would seem a more useful step towards w2k8 performance
than Viridian emulation, imo. I bet if you compare XP performance on
netbench with versus without the GPL PV drivers, the difference is more than

 -- Keir

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