Web Server Stress Testing with Curl

logformat.txt

%{url_effective},%{http_code},%{content_type},%{time_total},%{time_connect},%{time_starttransfer},%{size_download}\n

stress_tesh.sh

#!/bin/bash
# from http://www.abcseo.com/tech/ezstress

# kill all subshell processes
killall() {
        kill $(ps | grep '/sh$' | tr -s ' \t' ',' | cut -d',' -f 2) > /dev/null 2>&1
        exit
}

shuf_urllist() {
  cat urllist.txt | while read f ; do printf "%05d %s\n" "$(( $RANDOM % 100000 ))" "$f"; done | sort -n | cut -c7-
}

trap killall INT TERM EXIT
# check we have the number of users, iterations and output file for results
if [[ $# -ne 4 ]]
then
        echo "Usage: $0 <users to run> <iterations> <time in seconds: -1 for ever> <output file>"
        exit 1
fi
users=$1
iterations=$2
time=$3
file=$4

if [[ $time -eq -1 ]]
then
        echo "running with $users user for $iterations iterations"
else
        echo "running with $useris user for $iterations iterations and maximum time $time seconds"
fi

# start users as sub processes
echo -n "started "  > $file
date >> $file
for ((j=1;j<=$users;j++))
do
        (
        echo "starting user $j"
        for ((i=1;i<=$iterations;i++))
        do
                echo $PID
                shuf_urllist | while read url
                do
                curl -s --max-time 30 -e "EzStress Tool User $i" -o /dev/null -w @logformat.txt --url $url >> $file
                seconds=$(( $RANDOM %10 ))
                sleep $seconds
                done
        done
        )&
done
if [[ $time -eq -1 ]]
then
        wait
else
        sleep $time
        killall
fi
echo -n "done " >> $file
date >> $file

urllist

http://lv236:81/portal/site/bdenred