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[Xen-devel] RE: [Xen-users] Another GPLPV pre-release 0.9.11-pre7

To: "Arjan Filius" <iafilius@xxxxxxxxx>
Subject: [Xen-devel] RE: [Xen-users] Another GPLPV pre-release 0.9.11-pre7
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Mon, 14 Jul 2008 20:18:14 +1000
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
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Thread-topic: [Xen-users] Another GPLPV pre-release 0.9.11-pre7
> Hello James, and others
> I'm rather new on this ML, and tested (performance) this drivers on
> -Xen 3.2.1 (out of the box opensuse 11.0)
> -Xen enterpise 3.1
> and on both domU OS windows server 2003R3
> tested performance with iperf RX and TX.
> on both xen platforms i'd have to had to disable "Large Send offload",
> not i didn't came above 1Mbit/s with TX.

What is your physical NIC in your DomU? Do you know if it has support
for large send?

> performance results with a test machine in same subnet, but beeing
> physical machine:
> Xen 3.2.1 (opensuse)
>   RX: 0.0-60.0 sec  6.32 GBytes    905 Mbits/sec
>   TX:                              314 Mbits/sec

Was that with gplpv?

> Xen enterprise 3.2
>   RX: 0.0-60.0 sec  3.46 GBytes    496 Mbits/sec
>   TX: 0.0-60.0 sec    681 MBytes  95.2 Mbits/sec

Did that have any pv drivers?

> for comparison on Xen enterprice with deleverd (commercial) PV driver:
>   RX  0.0-60.0 sec  6.31 GBytes    904 Mbits/sec
>   TX: 0.0-59.9 sec  2.78 GBytes    399 Mbits/sec

Thanks for the feedback.


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