Re: [Xen-devel] HVM dropped packets

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Aug 25, 2009 at 03:52:23PM -0500, Nathan Stratton wrote:
> On Tue, 25 Aug 2009, Pasi Kärkkäinen wrote:
> 
> >Well I guess then your only option is to use stubdoms.
> 
> Any way to figure out what causes the overruns on tap and drops on vif? If 
> I am using tap for HVM why is there even a vif?
> 

How's your CPU usage? 

I bet the drops are caused by the low performance of Qemu nic _emulation_.

-- Pasi

> >Beware there's a bug (qemu memleak) in xen 3.4.1 related to stubdoms and 
> >heavy io
> >on hvm guests in general: 
> >http://lists.xensource.com/archives/html/xen-devel/2009-08/msg00335.html
> 
> Thanks.
> 
> -Nathan


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