[ovs-discuss] flow stats update interval

[Tmusic]

Hi,

Thank you!

I'm studying the source code, but I'm getting a bit lost...
In ofproto-dpif.c there are stat_update functions and some comments
pointing to dpif_flow_get(), but I can't seem to find how the stats are
exactly transferred between datapath and the corresponding (sub)facets in
userspace or where this update interval is defined.

Can you give me a clue?

Thank you in advance,

Tim


2013/3/7 Ben Pfaff <blp at nicira.com>

> On Thu, Mar 07, 2013 at 09:05:46PM +0100, Tmusic wrote:
> > I'm using ovs with openflow and have noticed that flow stats seem to
> update
> > about every second.
> >
> > So first question: Is this correct?
>
> Yes.
>
> > Is it possible to have it update more often? (command line arg, or does
> it
> > have to be changed in the source) I suppose this will imply heavier load
> > (more communication between userspace and kernel module)?
>
> You would have to modify the source.  It would require more
> communication.
>
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