Hi Marcel, Yup - I am using Seabios by default. I took all the measures from the Kernel time reported in syslog. As Seabios wasn't exhibiting any obvious scaling problem.
Ray K -----Original Message----- From: Marcel Apfelbaum [mailto:mar...@redhat.com] Sent: Wednesday, August 2, 2017 5:43 AM To: Kinsella, Ray <ray.kinse...@intel.com>; Kevin O'Connor <ke...@koconnor.net> Cc: Tan, Jianfeng <jianfeng....@intel.com>; seab...@seabios.org; Michael Tsirkin <m...@redhat.com>; qemu-devel@nongnu.org; Gerd Hoffmann <kra...@redhat.com> Subject: Re: [Qemu-devel] >256 Virtio-net-pci hotplug Devices It is an issue worth looking into it, one more question, all the measurements are from OS boot? Do you use SeaBIOS? No problems with the firmware? Thanks, Marcel