Arch Linux VM spice sluggish performance

[lk777]

I have created an Arch Linux /gnome w/Wayland vm.

noVNC-no performance issues
spice - sluggish performance

root@pve-1:~# pveversion -v
proxmox-ve: 7.1-1 (running kernel: 5.15.7-1-pve)
pve-manager: 7.1-8 (running version: 7.1-8/5b267f33)
pve-kernel-5.15: 7.1-7
pve-kernel-helper: 7.1-6
pve-kernel-5.13: 7.1-5
pve-kernel-5.15.7-1-pve: 5.15.7-1
pve-kernel-5.15.5-1-pve: 5.15.5-1
pve-kernel-5.13.19-2-pve: 5.13.19-4
pve-kernel-5.13.19-1-pve: 5.13.19-3
ceph-fuse: 15.2.15-pve1
corosync: 3.1.5-pve2
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown2: 3.1.0-1+pmx3
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.22-pve2
libproxmox-acme-perl: 1.4.0
libproxmox-backup-qemu0: 1.2.0-1
libpve-access-control: 7.1-5
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.0-14
libpve-guest-common-perl: 4.0-3
libpve-http-server-perl: 4.0-4
libpve-storage-perl: 7.0-15
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 4.0.11-1
lxcfs: 4.0.11-pve1
novnc-pve: 1.3.0-1
proxmox-backup-client: 2.1.2-1
proxmox-backup-file-restore: 2.1.2-1
proxmox-mini-journalreader: 1.3-1
proxmox-widget-toolkit: 3.4-4
pve-cluster: 7.1-3
pve-container: 4.1-3
pve-docs: 7.1-2
pve-edk2-firmware: 3.20210831-2
pve-firewall: 4.2-5
pve-firmware: 3.3-4
pve-ha-manager: 3.3-1
pve-i18n: 2.6-2
pve-qemu-kvm: 6.1.0-3
pve-xtermjs: 4.12.0-1
qemu-server: 7.1-4
smartmontools: 7.2-1
spiceterm: 3.2-2
swtpm: 0.7.0~rc1+2
vncterm: 1.7-1
zfsutils-linux: 2.1.1-pve3

agent: 1
audio0: device=AC97,driver=spice
bios: ovmf
boot: order=sata0;ide2;net0
cores: 2
cpu: EPYC
efidisk0: zfsa:vm-101-disk-0,efitype=4m,pre-enrolled-keys=1,size=1M
ide2: zfsb_mp:iso/archlinux-2022.01.01-x86_64.iso,media=cdrom
machine: q35
memory: 2048
meta: creation-qemu=6.1.0,ctime=1641991378
name: arch-gnome-wayland
net0: virtio=D2:C0:C6:70:96:9F,bridge=vmbr0,firewall=1
numa: 0
ostype: l26
sata0: zfsa:vm-101-disk-1,discard=on,size=64G,ssd=1
scsihw: virtio-scsi-pci
smbios1: uuid=57b757d5-68c9-4285-8c23-73a709b3c087
sockets: 1
vga: qxl,memory=128
vmgenid: 277636be-1a39-443b-a48a-d9931a2bf6c4

I have another VM Arch Linux / MATE w/xorg and there are no issues with the spice performance on this vm.

Are there any known compatibility issues between wayland and spice on the Proxmox platform?

 

[lk777]

This is not only Arch Linux specific issue. I have tested 'Ubuntu on Wayland' on kvm server (host: Ubuntu 20.04 server) and changed Video from QXL to Virtio and it resolved all those window rendering lag issues. I do not see how it can be implemented in Proxmox when SPICE/qxl is the only option to use SPICE. At least I do not know how.

 

[lk777]

Figured it out.
My workaround :

args: -spice 'port=5001,disable-ticketing'
vga: virtio,memory=128

spice://<proxmox host ip>:5001


QXL driver is x.org driver xf86-video-qxl. That is why, I believe, it doesn't work properly in Wayland.