Hello, I've tried using a 32bit Windows Vista guest on both VirtualBox and KVM, hosted on 64bit Ubuntu 12.04 (DualCore AMD Athlon X2, 8G RAM, Radeon graphics). After installing VBox guest additions on the Windows guest, performance, especially graphics (desktop) performance, is quite good. While there is some flicker when moving windows around on the desktop, the moved windows actually keeps moving fluently. OTOH, with KVM, the whole desktop experience is rather poor. Windows more or less jump while being moved and the whole system feels really slow. I've tried with all the different graphics adapter settings (and also installed VMWare graphics drivers), but nothing comes close to VirtualBox' performance. In both cases, screen resolution was set to 1280x960, with highest possible color depth. Connection to VirtualBox was done via RDP, while VNC was used for KVM (using krdc from KDE on both cases). I'd really like to use KVM instead of VirtualBox, so is there anything I can do to get better graphics performance? Thanks a lot. Bye... Dirk -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html