Comment 7 for bug 1079212
Revision history for this message
| Serge Hallyn (serge-hallyn) wrote Re: [Bug 1079212] Re: network slow when 2 VMs using virtio net bridged to same pyhs. network device on kvm host | #7 |
Quoting ITec (<email address hidden>):
Thanks for the .xml. Nothing stands out there...
> What could you have done differently?
The main thing is that I used raring, not quantal. This could be
somethign which was fixed in either qemu or the kernel.
> - Did you run 2 VMs at the same time?
yup
> - Is networking on your VMs using virtio?
yup
> - Did you start "iperf -s" on both VMs?
yup
> - Did you use iperf with "-d" option on two remote hosts to connect to the VMs?
No, i did so from a single host. I used two laptops connected over an
ethernet cable (with the one beign pxe+dhcp server for the other, my
regular install setup).
> - Are all hosts (KVM hypervisor, and both remote hosts) connected to the same physical network switch by 1Gbit/s?
No switch involved. I'll try using just quantal first on the VM host, but
wouldn't that be interesting if adding a switch caused this!