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On Thu, Oct 28, 2010 at 03:59:17PM +0200, Michael Schwartzkopff wrote:
> On Thursday 28 October 2010 13:42:47 Simon Horman wrote:
> > On Thu, Oct 28, 2010 at 08:24:36AM +0200, Michael Schwartzkopff wrote:
> > > Hi,
> > >
> > > is it possible to use direct routing with clients, real server and
> > > director in the same LAN?
> >
> > Yes. Actually, that is how I do most of my testing.
>
> Do you have any idea why the director might limit the performance of our
> system? Without LB I get 100 connections/s to the real IP address of a real
> server. When I address the virtual IP of the director I get a performance
> drop
> to 1 connection/s.
>
> tcpdump shows that sometimes I have no traffic at all on the line to 0.2 sec.
>
> Any ideas? Thanks.
If you are running 2.6.36 then this may relate to a performance
regression related to the introduction of double NAT.
But regardless, that is a pretty startling result that
I don't have a decent explanation for.
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