creates a defineable traffic, that looks like caused by real users

simulate_traffic.sh

#!/usr/bin/env bash
# by rubo77: https://gist.github.com/rubo77/6f3abb42685237dfca16

# choose 5MB, 10MB, 20MB, 50MB, 100MB, 200MB, 512MB or 1GB
BIG=5MB
# choose the maximum download size for one recursive crawl, for example 100k or 2m
CRAWL_MAX=100k

IN="http://download.thinkbroadband.com/$BIG.zip http://google.de/?q=test http://www.bbc.co.uk http://www.theregister.co.uk http://en.wikipedia.org/wiki/cloud_computing"

mkdir -p /tmp/simulate/
cd /tmp/simulate/

while true; do
  for x in $IN; do
    echo downloading $x
    wget -q -r -l 2 -Q$CRAWL_MAX -T 10 $x --wait 10 --random-wait --user-agent="Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.3) Gecko/2008092416 Firefox/3.0.3"
    echo -n "["$(date "+%Y-%m-%d %H:%M:%S")"] - downloaded "
    du /tmp/simulate/ -sh | cut -f1
    rm /tmp/simulate/* -Rf
  done
done