|
Enable vhost-net
2011/05/27 |
|
Enable vhost-net to mitigate overheads on virtualiazation environment.
|
|
| [1] | Load vhost-net module on KVM Host. |
|
[root@dlp ~]# modprobe vhost_net [root@dlp ~]# vhost_net 25194 0 macvtap 7629 1 vhost_net tun 14146 3 vhost_net |
| [2] | It's Ok all. Virtual Machines start with enabling vhost-net. By default, if vhost-net is loaded, virtual machines start with "vhost=on" automatically like follows. |
|
[root@dlp ~]#
[root@dlp ~]# virsh start www # start Domain www started ps -ef | grep vhost qemu 3692 1 7 02:02 ? 00:00:22 /usr/libexec/qemu-kvm -S -M rhel6.0.0 -enable-kvm -m 1024 -smp 2,sockets=2,cores=1,threads=1 -name mail -uuid 02d4a8ed-d012-e847-1532-1d1f5e2f0edc -nographic -nodefconfig -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/mail.monitor,server,nowait -mon chardev=monitor,mode=control -rtc base=utc -boot c -drive file=/var/kvm/images/mail.img,if=none,id=drive-virtio-disk0,boot=on,format=raw,cache=none -device virtio-blk-pci,bus=pci.0,addr=0x3,drive=drive-virtio-disk0,id=virtio-disk0 -netdev tap,fd=20,id=hostnet0, vhost=on ,vhostfd=22 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:67:8c:a1,bus=pci.0,addr=0x2
-chardev pty,id=serial0 -device isa-serial,chardev=serial0 -usb -device usb-tablet,id=input0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4root 3706 2 0 22:15 ? 00:00:00 [vhost-3692]
|