[Tsung] Generating over 32k clients from a single machine

[Vinod Panicker]

Hi,

I'm trying to generate lots of xmpp clients from a single powerful
machine and tsung is having problems when the load reaches to around
32k. In the log file, I see -

=INFO REPORT==== 19-Feb-2008::17:58:34 ===
         ts_launcher:(4:<0.47.0>) Phase duration exceeded, more than
20% (33.4%) of users were not launched in time (16708 users), tsung
may be overloaded !

The machine config is quite good and the cpu utilization is around
25%, no wait times etc.  It seems like the client machine is not able
to use more than 32k ports, but I've already changed sysctl options to
use a port range from 1024 through 65000

Any clues as to what can be done?

Regards,
Vinod.