Re: [QUESTION] How to improve virtio-gpu performance

[Jun Piao]

ping?

在 2020/5/22 10:39, Jun Piao 写道:
> Hi Gerd,
> 
> I'm using glmark2 to test virtio-gpu on AMDGPU, but the result is
> unsatisfactory.
> 
> GPU: AMD Radeon Pro WX 5100
> Host OS: CentOS Linux release 7.7.1908 (AltArch)
>   --QEMU: 4.0.0
>   --linux kernel 4.18
>   --mesa 18.3
>   --virglrenderer
>   --spice server 0.14.2
>   --spice-gtk3-0.35
>   --libepoxy 1.5.2
> Guest OS: CentOS Linux release 7.7.1908 (AltArch)
>   --linux kernel 4.18
>   --mesa 18.3
>   --xorg server 1.20
> TestSuit: glmark2
> 
> Host result:
> glmark2 Score: 10043
> 
> Single Guest result:
> glmark2 Score: 2209
> 
> Multi Guest result:
> Guest1: glmark2 Score: 1136
> Guest2: glmark2 Score: 1231
> Guest3: glmark2 Score: 1282
> Guest4: glmark2 Score: 1175
> Guest5: glmark2 Score: 1398
> 
> It seems the whole performance of multi-guests is better than single
> guest, but each one has lower performance. I change 'ctrl_vq' from 256
> to 1024, but has little effect. I wonder the result is normal or
> abnormal? And which is the bottleneck? I'm appreciated for you help.
> 
> thanks,
> Jun
>