Re: [Qemu-devel] >256 Virtio-net-pci hotplug Devices

[Kevin O'Connor]

On Sun, Jul 23, 2017 at 07:28:01PM +0300, Marcel Apfelbaum wrote:
> On 22/07/2017 2:57, Kinsella, Ray wrote:
> > When scaling up to 512 Virtio-net devices SeaBIOS appears to really slow
> > down when configuring PCI Config space - haven't manage to get this to
> > work yet.

If there is a slowdown in SeaBIOS, it would help to produce a log with
timing information - see:
https://www.seabios.org/Debugging#Timing_debug_messages

It may also help to increase the debug level in SeaBIOS to get more
fine grained timing reports.

-Kevin