Hi Michal First of all I want to let you know that I really appreciate your guidance. Second thing, after I successfully installed the kernel headers I was able to compile libvirt again, this time it let me start the Guest with queues='5' The Guest runs Kernel 3.9.7 but for some reason virtio_has_feature(vdev, VIRTIO_NET_F_MQ) returns false for multi queue. Could you please tell me what am I missing? Thanks, Naor -----Original Message----- From: Michal Privoznik [mailto:mprivozn@xxxxxxxxxx] Sent: Thursday, August 29, 2013 10:13 AM To: Naor Shlomo Cc: libvir-list@xxxxxxxxxx Subject: Re: Libvirt multi queue support On 29.08.2013 08:55, Naor Shlomo wrote: > How odd. > > The Kernel is the first thing I upgraded, here's the output of "uname -r": > 3.10.9 > > I searched for IFF_MULTI_QUEUE in /usr/include/linux/if_tun.h and indeed it wasn't there. > I believe Kernel 3.10 should support the Multi Queue, do I need to recompile it? maybe change its config file? You shouldn't need to enable anything in the .config. However, you may need to update the linux-headers if you're building the libvirt on your own. There's a build-time check for IFF_MULTI_QUEUE. Michal -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list