Daniel Pocock
2017-Apr-28 18:04 UTC
[libvirt-users] virt-manager / remote desktop latency issues
Hi, I'm using virt-viewer to launch remote desktop connections The connection to the KVM host is using ssh The virtual machines/guests are running a GNOME desktop I've observed some latency issues, for example, changing focus from one terminal to another is a bit sluggish. Typing isn't too bad. The WAN connection is gigabit fibre from my home into a local data center. Ping times are about 0.8ms to the physical server. Smokeping shows there is no packet loss and the latency is constant. Can I do anything to tweak the .ssh/config to make it better? It occurred to me that adding "IPQoS lowdelay" might be useful as it defaults to "throughput" for non-interactive connections. Maybe virt-manager should add that on the ssh command line? Is there any way to see SPICE latency statistics in the virt-manager GUI? Would any other SPICE viewer make a difference? Are there any changes I should make to the GNOME desktop configuration to make it work better through SPICE? Can anybody make any other suggestions? Regards, Daniel
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