Hi Everyone,
I'm currently looking at the network performance between two KVM guests
running on the same host. The host system is applied with two quad core
Xeons each 3GHz and 32G memory.
I use a bridge to pass packets between those guests and the
virtio NIC model. I am wondering why the throughput only goes up to about
950Mbps.
VM101 <-> VM102):
[ 3] 0.0-60.0 sec 6.07 GBytes 868 Mbits/sec
It is the speed of network interface hardware
Speed is the same VM101 <-> Host 860 Mbits/sec
results within the same guest (iperf server is running on the same
system: VM101 <-> VM101):
[ 3] 0.0-10.4 sec 9.54 GBytes 7.90 Gbits/sec
XenServer 5.6
performance between two guests VM101 <-> VM102 aprox 4 GBits/s
This is for KVM features?
Host Proxmox 1.5 with update
Server HP ML330G6
2x Broadcom Corporation NetXtreme BCM5715 Gigabit Ethernet
driver: tg3 version: 3.102
VM101 CentOS 5.5 with virtio
VM102 CentOS 5.5 with virtio
I'm currently looking at the network performance between two KVM guests
running on the same host. The host system is applied with two quad core
Xeons each 3GHz and 32G memory.
I use a bridge to pass packets between those guests and the
virtio NIC model. I am wondering why the throughput only goes up to about
950Mbps.
KVM VM101
>> br0 | HOST KVM | eth0
KVM VM102
performance between two guests (iperf server is running on other guest
VM101 <-> VM102):
[ 3] 0.0-60.0 sec 6.07 GBytes 868 Mbits/sec
It is the speed of network interface hardware
Speed is the same VM101 <-> Host 860 Mbits/sec
results within the same guest (iperf server is running on the same
system: VM101 <-> VM101):
[ 3] 0.0-10.4 sec 9.54 GBytes 7.90 Gbits/sec
XenServer 5.6
performance between two guests VM101 <-> VM102 aprox 4 GBits/s
This is for KVM features?
Host Proxmox 1.5 with update
Server HP ML330G6
2x Broadcom Corporation NetXtreme BCM5715 Gigabit Ethernet
driver: tg3 version: 3.102
VM101 CentOS 5.5 with virtio
VM102 CentOS 5.5 with virtio
Last edited: