Hello Gianluca.

As I mentioned previously I am not sure it has anything to do with SPICE at all, but with the amount of memory the VM has assigned to it. Proff of it is that when you access with via any Remote Desktop protocol it remains slow as if the amount of video memory wasnt being enough and have seen it crashing several times as well.

Fernando


On 07/03/2018 16:59, Gianluca Cecchi wrote:
On Wed, Mar 7, 2018 at 7:43 PM, Michal Skrivanek <michal.skriva...@redhat.com <mailto:michal.skriva...@redhat.com>> wrote:



    On 7 Mar 2018, at 14:03, FERNANDO FREDIANI
    <fernando.fredi...@upx.com <mailto:fernando.fredi...@upx.com>> wrote:

    Hello Gianluca

    Resurrecting this topic. I made the changes as per your
    instructions below on the Engine configuration but it had no
    effect on the VM graphics memory. Is it necessary to restart the
    Engine after adding the 20-overload.properties file ? Also I
    don't think is necessary to do any changes on the hosts right ?

    correct on both



Hello Fernando and Michal,
at that time I was doing some tests both with plain virt-manager and oVirt for some Windows 10 VMs.
More recently I haven't done anything in that regard again, unfortunately.
After you have done what you did suggest yourself and Michal confirmed, then you can test powering off and then on again the VM (so that the new qemu-kvm process starts with the new parameters) and let us know if you enjoy better experience, so that we can ask for adoption as a default (eg for VMs configured as desktops) or as a custom property to give

    On the recent updates has anything changed in the terms on how to
    change the video memory assigned to any given VM. I guess it is
    something that has been forgotten overtime, specially if you are
    running a VDI-like environment whcih depends very much on the
    video memory.

    there were no changes recently, these are the most recent
    guidelines we got from SPICE people. They might be out of date.
    Would be good to raise that specifically (the performance
    difference for default sizes) to them, can you narrow it down and
    post to spice-de...@lists.freedesktop.org
    <mailto:spice-de...@lists.freedesktop.org>?



This could be very useful too

Cheers,
Gianluca


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