On Tue, Dec 06, 2011 at 04:33:43PM -0700, Eric Blake wrote: > [redirecting to the fedora virt list] > > On 12/06/2011 03:36 PM, Dennis Jacobfeuerborn wrote: > > Hi, > > I noticed that when you install a virtual system with virt-manager it > > always installs a tablet device by default. > > The problem is that this device consumes 10% of cpu resources of the host > > according to "top" which should probably be considered a bug. > > The poor behavior of a tablet device should be raised against the qemu > team, to see if it can be made more efficient. This is a long standing problem, but it shouldn't be taking anywhree near 10% of CPU. If using SPICE with the SPICE guest agent installed there is a parvirt mouse available, avoiding the need for the USB tablet. > > > What is worse is that removing the tablet also means no mouse pointer > > showing up in a centos 6 guest which means you are pretty much forced to > > use the tablet device. That shouldn't be the case. If you boot the guest with no USB tablet present, X should auto-detect the PS2 mouse and use that. You would only have trouble if either hot-unpluging the USB tablet, or if you have hardcoded its use in /etc/X11/xorg.conf > > Meanwhile, sufficiently new qemu provides USB device emulation, which is > more efficient than the PCI tablet emulation; Actually the tablet is a USB device, not a PCI device. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
