Marcel,

The findings are pretty consistent with what I identified.
Although it looks like SeaBIOS fairs better than UEFI.

Thanks for the headsup, will reply on the thread itself.

Ray K

-----Original Message-----
From: Marcel Apfelbaum [mailto:mar...@redhat.com] 
Sent: Wednesday, August 9, 2017 3:53 AM
To: Kinsella, Ray <ray.kinse...@intel.com>; Kevin O'Connor <ke...@koconnor.net>
Cc: Tan, Jianfeng <jianfeng....@intel.com>; seabios@seabios.org; Michael 
Tsirkin <m...@redhat.com>; qemu-de...@nongnu.org; Gerd Hoffmann 
<kra...@redhat.com>
Subject: Re: [Qemu-devel] >256 Virtio-net-pci hotplug Devices

On 07/08/2017 22:00, Kinsella, Ray wrote:
> Hi Marcel,
> 

Hi Ray,

Please have a look on this thread, I think Laszlo and Paolo
found the root cause.
     https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg01368.html
It seems hot-plugging the devices would not help.

Thanks,
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>; seabios@seabios.org; Michael 
> Tsirkin <m...@redhat.com>; qemu-de...@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
> 
> 

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