Are these Windows instances? You can try to tweak the video memory on the flavor. But as a rule, non-GPU virtual instances will always be less efficient. But if you are using RDP + Openstack Windows VM without a GPU, it can probably get pretty good. It's never going to be Citrix/any other virtual desktop good though. On Thu, Mar 17, 2022 at 4:23 AM A Monster <amonster369 at gmail.com> wrote: > I've deployed an openstack cloud using kolla-ansible, but the vm instances > which has gui are very slow, do I need GPUs in order to get fast instances ? > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20220317/2bf24a0e/attachment.htm>