Spice vs Default.

[wolframio]

Hello there!

I have a question, do select "Spice" as display in a VM, increase VM performance/response of graphical interface?

 

[LnxBil]

I have a question, do select "Spice" as display in a VM, increase VM performance/response of graphical interface?

Yes, but you need a dedicated client program on your computer virt-viewer. It does not work over the Webserver anymore.

 

[wolframio]

Yes, but you need a dedicated client program on your computer virt-viewer. It does not work over the Webserver anymore.

Thanks for the reply!

To be more precise in my question, does the "display" option improve the performance of the emulation itself? just like someone changes the GPU for a more powerful one on a real machine... or is it just something that the user feels when connecting to the VM.If changing the display option really improves the performance of the VM in general, what would be the option that will deliver the most performance? for example: Default VS VirtIO-GPU

 

[LnxBil]

Performance is not a precise thing, so I'll try to differentiate: The best experience is GPU passthrough, so that you have the full power of your GPU at your fingertips. SPICE is the second best option to have a working VDI-like infrastructure because it'll passthrough your clipboard, you have dynamic window resizing, audio passthrough and decend graphics performance due to graphics offloading to the client. This technique is similar to RDP, yet lives at the virtual hardware level and not on the OS level. The default VNC is fine for "just doing some GUI stuff" like configuring a server. You won't have clipboard sharing or audio passthrough and everything is done on the client and uploaded to your browser.