On Thu, Nov 24, 2016 at 9:24 AM, qinglong.d...@horebdata.cn < qinglong.d...@horebdata.cn> wrote:
> Hi, all: > I have an ovirt 4.0.5 environment. There is a 10g nic in the > host. I have created a vm which uses the 10g nic. The type of the nic is > virtio. Then I got a 1g virtual nic in the vm. Now I want a 10g virtual nic > in the vm. Is it possible? Anyone can help? Thanks! > > > Did you make any performance test to evaluate real performance? What is the qemu-kvm command line generated by your oVirt? I see in my 4.0.5 environment with 1Gb/snic/vnic, it is something like this: -netdev tap,fd=24,id=hostnet0,vhost=on,vhostfd=28 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:1a:4a:16:01:58,bus=pci.0,addr=0x3 According to this link below, this syntax should give you 10Gb/s performance.... I don't have a 10Gb/s to verify though at my side... ;-) http://www.linux-kvm.org/page/10G_NIC_performance:_VFIO_vs_virtio Gianluca
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