Re: pareto and exponential traffic sources

[Lee Breslau <breslau@parc.xerox.com>]

Vince,

The idea of warmup is to discard transient data collected during the
start of the simulation.  The concept is not specific to any particular
source models, and it can be applied to any simulation.  The length
of the warmup period can be a function of the parameters of a simulation
(including but not limited to source models).

Jain's "The Art of Computer Systems Performance Analysis" has
a discussion of warmup (which he refers to as "initial data deletion")
and other methods for dealing with startup transients.

Lee

> 
> Hi,
> 
> I was wondering if anyone could advise me on WARM-UP time issues for
> simulations involving the Pareto ON/OFF and exponential ON/OFF sources.
> 
> I don't know what warm-up time is, but have seen it mentioned in papers
> that describe simulations (not ns based) using these types of traffic. I
> *feel* that it might have something to do with the state transition
> probabilities in the system reaching steady state. (don't kill me for
> using the term "steady state" in networking) .
> 
> Thanks
> 
> Vince
> 
> 
> 
> 
>