hi, at my workplace we have several freebsd 8.2 and 9.0 kvm vm's in production (ldap, dns and webmail server).
we use virtio drivers and network performance is very good. there was one problem for us with kvm & virtio as i already wrote at freebsd mailing list. suddenly /var/log/message at kvm hosts start to growing at very high rate with warnings about some vlan problems.
solution was to use -tso option with ifconfig_vtnetX in rc.conf.
anyway, that's only problem for us with kvm and freebsd.
anyway, linux is still better option if you need performance (block and io) then freebsd in both cases, vmware and kvm.
we also tried openbsd in vmware and kvm. and that's bad. unfortunately.
ps. yesterday i tried to do freebsd-update -r 9.1-RELEASE upgrade at one of my production kvm vm. everything went ok but immediately after reboot i've got kernel panic. something about unsupported cpu. i didn't have time to investigate where's the problem.
On 04/29/2013 08:34 PM, mattias wrote:
thanks for the image Now lets's see
-----Ursprungligt meddelande----- Från: centos-virt-bounces@centos.org [mailto:centos-virt-bounces@centos.org] För Nux! Skickat: den 29 april 2013 20:27 Till: centos-virt@centos.org Ämne: Re: [CentOS-virt] freebsd as kvm guest
On 29.04.2013 18:54, Ilya Ponetayev wrote:
I have about ten installations of pfSense 2 in CentOS/KVM as FreeBSD 8.x profile and experience no problems except significant CPU load at 50-100 Mbps stream shaping/routing/filtering (about 50-60% of one Penitum G630 core at 75 MBps), but this is because of e1000 nics emulation (freebsd 8.x in pfsense 2 has no virtio drivers included as I can remember).
I too wanted to use PFSense on KVM/EL6 but network performance was disappointing. My network engineers reverted to using VMware ESXi for the time being. My hope is with Fbsd 10 which includes virtio drivers by default (and also has a SMP friendly PF :> ).
BTW, here's a QCOW2 of it, import image as RHEL6 profile (has all the virtio stuff): http://li.nux.ro/download/openstack/images/fbsd10-snap-20130316-r248381- TESTING.qcow2
The root passwd is "password" so change it ASAP!
Even with this image I could not saturate 1 Gbps link (just rudimentary test with "fetch -o /dev/null"), but it's still an improvement.