On Mon, May 21, 2012 at 5:54 PM, Erik Rull <webmas...@rdsoftware.de> wrote: > is there a summary existing that shows up the rough or actual differences > between qemu --enable-kvm and qemu-kvm? I tested both versions with the same > compile and start options, the CPU performance results are identical, only > the bootup time of my guest system with qemu-kvm seemed to be a bit faster > (not measured, it just feeled so).
For production KVM instances I think it still makes sense to use qemu-kvm packages from your distro or qemu-kvm upstream source. Jan Kiszka has reduced the delta between qemu.git and qemu-kvm.git to the point where I think the list of differences is rather small - maybe PCI passthrough stuff, irqfd for vhost-net (which is now also being upstreamed into qemu.git), and a few other things I don't know of. For development most patches should be against qemu.git unless they have a dependency on qemu-kvm.git code. Stefan
