Il 31/10/2013 04:32, Giridhar Maruthy ha scritto: > On 30 October 2013 22:12, Paolo Bonzini <pbonz...@redhat.com> wrote: >> Il 30/10/2013 15:40, Giridhar Maruthy ha scritto: >>> 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. >> >> Were you using vhost? > > Yes, I did use vhost in the host kernel configuration and passed > vhost=on in qemu, but there is no difference in the performance of > guest.
What's your command line? Paolo
