Re: [libvirt] Libvirt multi queue support
On 12.06.2016 09:32, Erick.shi wrote: > Michal Privoznik redhat.com> writes: > >> >> On 21.08.2013 07:31, Naor Shlomo wrote: >>> Hello experts, >>> >>> >>> >>> Could anyone please tell me if Multi Queue it fully supported in Libvirt >>> and if so what version contains it? >>> >> >> Do you mean multiqueue network? It's supported from 1.0.6. You can set >> it in /domain/devices/interface/driver/ queues attribute: >> >> http://libvirt.org/formatdomain.html#elementsDriverBackendOptions >> >> Michal >> >>> > hi. > I have a centos7 physical host.and I had install a centos6 virtualhost ,I > did a > Multi-Queue virtio-net on my centos6 virtualhost ,but it was not success. dit > centos6 virtualhost support Multi-Queue？ Unfortunately, you don't say what went wrong, what error message are you seeing. I guess sufficiently new CentOS 6 guest could support MQ, but that's just my guess. Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Libvirt multi queue support
Michal Privoznik redhat.com> writes: > > On 21.08.2013 07:31, Naor Shlomo wrote: > > Hello experts, > > > > > > > > Could anyone please tell me if Multi Queue it fully supported in Libvirt > > and if so what version contains it? > > > > Do you mean multiqueue network? It's supported from 1.0.6. You can set > it in /domain/devices/interface/driver/ queues attribute: > > http://libvirt.org/formatdomain.html#elementsDriverBackendOptions > > Michal > > > hi. I have a centos7 physical host.and I had install a centos6 virtualhost ,I did a Multi-Queue virtio-net on my centos6 virtualhost ,but it was not success. dit centos6 virtualhost support Multi-Queue？ please send my email as soon as possible. thao��̄( -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Libvirt multi queue support
On 03.09.2013 06:42, Naor Shlomo wrote: > 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? Unfortunately no, I am not that familiar with KVM internals to give any useful answer. But maybe you can ask on the qemu list. Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Libvirt multi queue support
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:mpriv...@redhat.com] Sent: Thursday, August 29, 2013 10:13 AM To: Naor Shlomo Cc: libvir-list@redhat.com Subject: Re: [libvirt] 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@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] 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@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Libvirt multi queue support
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? -Original Message- From: Michal Privoznik [mailto:mpriv...@redhat.com] Sent: Thursday, August 29, 2013 9:28 AM To: Naor Shlomo Cc: libvir-list@redhat.com Subject: Re: [libvirt] Libvirt multi queue support On 29.08.2013 08:07, Naor Shlomo wrote: > Hi Michal > > First of all thanks for your reply. > > I followed your advice and the guideline you sent and did the following: > > > > > > >function='0x0'/> > > > virsh version reports the following: > > Compiled against library: libvirt 1.1.1 Using library: libvirt 1.1.1 > Using API: QEMU 1.1.1 Running hypervisor: QEMU 1.5.2 > > When I tried starting the machine I received the following: > > error: Failed to start domain NaorDev > error: unsupported configuration: Multiqueue devices are not supported > on this system > > Could you please tell what am I missing? > > Thanks, > Naor Your kernel does not support MQ yet. You need to update the kernel. The support can be checked by executing: grep IFF_MULTI_QUEUE /usr/include/linux/if_tun.h (so maybe you'll need to update the linux-headers package as well). Anyway, the MQ support has been introduced to kernel in the 3.8 release (even though the docs were introduced in 3.9). Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Libvirt multi queue support
On 29.08.2013 08:07, Naor Shlomo wrote: > Hi Michal > > First of all thanks for your reply. > > I followed your advice and the guideline you sent and did the following: > > > > > > >function='0x0'/> > > > virsh version reports the following: > > Compiled against library: libvirt 1.1.1 > Using library: libvirt 1.1.1 > Using API: QEMU 1.1.1 > Running hypervisor: QEMU 1.5.2 > > When I tried starting the machine I received the following: > > error: Failed to start domain NaorDev > error: unsupported configuration: Multiqueue devices are not supported on > this system > > Could you please tell what am I missing? > > Thanks, > Naor Your kernel does not support MQ yet. You need to update the kernel. The support can be checked by executing: grep IFF_MULTI_QUEUE /usr/include/linux/if_tun.h (so maybe you'll need to update the linux-headers package as well). Anyway, the MQ support has been introduced to kernel in the 3.8 release (even though the docs were introduced in 3.9). Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Libvirt multi queue support
Hi Michal First of all thanks for your reply. I followed your advice and the guideline you sent and did the following: virsh version reports the following: Compiled against library: libvirt 1.1.1 Using library: libvirt 1.1.1 Using API: QEMU 1.1.1 Running hypervisor: QEMU 1.5.2 When I tried starting the machine I received the following: error: Failed to start domain NaorDev error: unsupported configuration: Multiqueue devices are not supported on this system Could you please tell what am I missing? Thanks, Naor -Original Message- From: Michal Privoznik [mailto:mpriv...@redhat.com] Sent: Wednesday, August 21, 2013 2:51 PM To: Naor Shlomo Cc: libvir-list@redhat.com Subject: Re: [libvirt] Libvirt multi queue support On 21.08.2013 07:31, Naor Shlomo wrote: > Hello experts, > > > > Could anyone please tell me if Multi Queue it fully supported in > Libvirt and if so what version contains it? > Do you mean multiqueue network? It's supported from 1.0.6. You can set it in /domain/devices/interface/driver/@queues attribute: http://libvirt.org/formatdomain.html#elementsDriverBackendOptions Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] Libvirt multi queue support
On 21.08.2013 07:31, Naor Shlomo wrote: > Hello experts, > > > > Could anyone please tell me if Multi Queue it fully supported in Libvirt > and if so what version contains it? > Do you mean multiqueue network? It's supported from 1.0.6. You can set it in /domain/devices/interface/driver/@queues attribute: http://libvirt.org/formatdomain.html#elementsDriverBackendOptions Michal -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
[libvirt] Libvirt multi queue support
Hello experts, Could anyone please tell me if Multi Queue it fully supported in Libvirt and if so what version contains it? Thanks, Naor -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
