Hi all

We've just updated our dev environment from 4.1 to RHV 4.3 and found that while a lot better, Windows 10 under SPICE still isn't great.

We're running dual screen VMs at 2560x1440 resolution. The Windows login screen is particularly bad although once logged in it gets better but not great. The benchmark here is Windows 10 vs Windows 7 VMs.

We've gone into settings / advanced and set "configure for best performance". Latest RHV tools (4.3-6) are installed. We've also created "/etc/ovirt-engine/osinfo.conf.d/20-overload.properties" containing:

os.windows_10.devices.display.vramMultiplier.value = 4
os.windows_10x64.devices.display.vramMultiplier.value = 4

When we set the multiplier to 8, as recommended in another thread, ovirt-engine fails to restart.

I know there have been a few threads on this but I'd like to ask what is the advice for RHV/oVirt 4.3 to make Windows 10 faster? VDI on RHV makes up an important part of what we do and RDP, VNC, etc are not an option.

Thanks