Hi, On Tue, May 02, 2017 at 10:07:53AM -0400, Frediano Ziglio wrote: > > In particular, rendering the gray background of the GNOME unlock screen > > appears very slow, it renders one line at a time from top to bottom, it > > takes several seconds. Rendering the desktop background image (default > > Debian theme) was also slow. I understand that I could change the > > background image, but the gray lock screen, being a single colour, > > shouldn't that render more quickly? > > > > weird, looks like is not compressing at all! > With remote-viewer you can add options like --spice-preferred-compression=glz > (see "remote-viewer --help-spice" command), you should be able to connect > with "remote-viewer spice://<ip>:<port>" (not using ssh). There is also the fact that we have too many re-draws in GNOME which makes everything worse. If you enable GTK_DEBUG=updates (or --gtk-debug=updates) you will be able to see what the difference between GNOME as guest and other lightdm (windows is fairly great too....) > > > Unfortunately, before I could test it more, Xorg crashed again, I've > > submitted the core dump now. > > > > >> I noticed it appears a little better with virt-manager than virt-viewer, > > >> should there be any difference between these two products if they both > > >> use the same protocol? > > >> > > > > > > Maybe is due to some compression settings difference. Not sure which > > > compression algorithms are used by virt-manager/virt-viewer. > > > > > >> 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? > > >> > > > > > > display requires quite lot of bandwidth, if you set network to > > > low delay but you use a lot of bandwidth you'll get worst performance. > > > > > >> 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? I've heard people comment on > > >> changing to fvwm. > > >> > > >> Can anybody make any other suggestions? > > >> > > >> Regards, > > >> > > >> Daniel > > > > > > Frediano > > > > > > _______________________________________________ > Spice-devel mailing list > Spice-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/spice-devel
Attachment:
signature.asc
Description: PGP signature
_______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel