[netperf-talk] simultaneous connections

[Rick Jones]

suva shrestha wrote:
> hi,
> 
> i have called  netperf in a loop to produce multiple simultaneous 
> connections. it seems to work fine upto 60 connections after which it 
> gives the error messages :
> 
> 1) netperf: receive_response: no response received
> 2)netperf from 10.0.2.1(machine address) exceeded counts/min (limit 
> 60/min).
> 
> please expalin why i am getting this problem and is it ok to run netperf 
> in a loop????

There are often limits to the number of processes a given user id may 
launch at any one time etc.  Those would be OS specific and not 
something you could change in netperf.

Netperf (netperf2 that is, which is what I suspect you are running) does 
not provide synchronization bewteen the different instances.  So, you 
cannot really just go an sum the results each netperf presents.  You 
also have to remember that each netperf assumes it is the only thing 
running on the system(s) - particularly when it comes to measuring CPU 
utilization and calculating service demand.

rick jones