Re: [Xen-users] 10G network performance xen-4.1.2

[Peter Braun <xenware@xxxxxxxxx>]

I have heard about this bottleneck even on citrix forum. There should
be improvement in upcoming service pack for Citrix Server 6.

I guess you use bridged configuration. Have you tried to use Open
vSwitch http://openvswitch.org/ instead of classic bridging?

Br

Peter


Dne 20. dubna 2012 2:46 kernel user <klinuxos@xxxxxxxxx> napsal(a):
> Hello,
>
> I am testing 10G NICs with linux kernel 3.2.2 and Xen 4.1.2.
> If I boot linux kernel 3.2.2 without Xen I get arount 7.3 Gbps performance
> between 2 physical servers.
> If I boot linux kernel 3.2.2 with xen-4.1.2 hypervisor I get 2 Gbps network
> performance between server1-dom0 and server2-dom0. When a dom0 memory and
> vcpus are increased (memory = 2G and vcpu = 4) I get maximum 5.2 Gbps
> performance. While the maximum server1-domU and server2-domU network
> performance I could achieve is 2 Gbps.
>
> Any reason why Xen introduces such a big hit for network performance? Any
> pointer or suggestions to try for improving network performance?
>
> ~shri
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxx
> http://lists.xen.org/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users