Hi All, I tried to measure the network performance of guest (mach-virt) with virtio-net on an ARM host platform (Samsung exynos). The qemu version is 1.6.50.
I found that with 1GbE NIC on the host, the host iperf gave a speed of 847Mbits/sec when a local dhcp server was used as a iperf server. But the guest gave a speed of 478Mbits/sec which is around 56% compared to host. What is the typical guest network efficiency compared to host with virtio-net? Any ideas would be helpful. Thanks, Giridhar