On Thu, Mar 08, 2012 at 05:11:16PM +0200, Pekka Enberg wrote:
> On Thu, Mar 8, 2012 at 4:32 PM, Daniele Carollo <[email protected]>
> wrote:
> > for an university study, I'm doing some network test between two vm
> > using native linux kvm tool and connected via tap/virtio/vhost.
> > When I run my script (several consecutive iperf tcp and udp
> > execution), the first vm freeze with a message like: "hrtimer:
> > interrupt took * ns".
> > Is this a bug? (In order to complete the test i had to set the number
> > of guest cpu to 1)
> >
> > Do you know what is the expected throughput between two vm using
> > virtio/vhost?
>
> I don't really use the tap interface so lets CC Asias. Which guest
> kernel are you using, btw?
>
Yup, Asias was using it, if my memory doesn't betray me. Also both -- host
and guest kernel versions might be useful to know. iirc we were emulating
rtc only while anything else passes through to kvm kernel driver.
Cyrill
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