Jim Paris <jim@xxxxxxxx> writes: > Jon Fairbairn wrote: >> Brian Jackson <iggy@xxxxxxxxxxx> writes: >> >> > On Friday 28 August 2009 01:14:42 pm Jon Fairbairn wrote: >> >> The setup was done through virt-manager. The network between the host >> >> and guest is a virtual bridge. What I've been trying to do is to assign >> >> a USB cable modem to the guest, >> > >> > >> > This is probably your problem here. KVM only emulates a usb1.1 >> > controller, >> >> that shouldn't be a problem as the cable modem is only a usb 1.1 device. >> >> > and from all reports, it doesn't really do that very well. >> >> Not very well? We're talking about a factor of *FIFTY* slow down here. >> If I'd implemented the driver in a 1980s lazy functional language I >> would have only expected a factor of ten :-P ;-). > I don't have any specific answers, but you might be able to get some > more info by uncomenting the "//#define DEBUG" in kvm's usb-linux.c. > You might also try capturing the USB traffic (e.g. with wireshark) Thanks for your comments; I was waiting for a time when the network wasn't in constant use to try some experiminents, but unfortunately my ISP has replaced the cable modem with a newer version that doesn't have a USB port, so I have to abandon this approach anyway. [Assigning a physical PCI device to a kvm guest doesn't work with AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ does it?] -- Jón Fairbairn Jon.Fairbairn@xxxxxxxxxxxx -- 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
