RE: [Xen-users] GPLPV 0.9.12-pre4 uploaded

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> Hi James!
> 
> With Xen 3.4 unstable and GPL PV 0.9.12-pre4 I finally managed to get
> W2k8 64bit running on my server (with -pre3 Windows complained about a
> resource problem for the Xen PCI driver). One thing I have noticed is
> that pings most times have < 1ms latency (okay) and sometimes about
> 15ms. The destination (dom0, domU, network connected device) seems not
> to play a role. Do you have an idea what's happening here?
> 
> See below for sample ping output (W2k8 in German, that's why the
> messages are in German).
> 
> C:\Users\Administrator>ping -n 10 XXX.XXX.de
> 
> Ping wird ausgeführt für XXX.XXX.de [192.168.XXX.XXX] mit 32 Bytes Daten:
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit<1ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit=15ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit=15ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit=1ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit<1ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit<1ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit=1ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit=1ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit=1ms TTL=64
> Antwort von 192.168.XXX.XXX: Bytes=32 Zeit<1ms TTL=64
> 
> Ping-Statistik für 192.168.XXX.XXX:
>     Pakete: Gesendet = 10, Empfangen = 10, Verloren = 0 (0% Verlust),
> Ca. Zeitangaben in Millisek.:
>     Minimum = 0ms, Maximum = 15ms, Mittelwert = 3ms
> 
> The system has 2x 2 cores (2x Intel Xeon 5140).
> 

How many vcpu's does your Dom0 and your DomU have?

Can you make sure that 'rx interrupt moderation' is disabled? Disabled is
the default so if you haven't changed it don't worry.

James

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