[ovs-discuss] Performance of openvswitch versus linux bridging with XEN

Jesse Gross jesse at nicira.com
Fri Jan 20 17:08:58 PST 2012


On Fri, Jan 20, 2012 at 4:26 PM, Vijay Chander <vijay.chander at gmail.com> wrote:
> We are using the latest hot fixes with xencenter 6.0 including the one
> mentioned below.
>
> What we noticed was that the openvswitch was running in user mode (for the
> default xencenter 6.0)
> installation !

Why do you say that?  I don't believe that is true; even when run in
kernel mode, OVS has both userspace and kernel components.

> We manually pulled in ovs sources and installed it as kernel module and
> things are much
> better now.
>
> Can someone pls point me to a high level architecture of the ovs data path ?
> Looking at the
> ovs-1.3 code to understand this meanwhile :)

There's some information in the porting guide:
http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob;f=PORTING


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