benchmark.sh

#!/bin/bash

echo -e "\nbenchmark.sh -n<number of requests> -c<number of concurrency> <URL1> <URL2> ..."

echo -e "\nEx: benchmark.sh -n100 -c10 http://www.google.com/ http://www.bing.com/ \n"

## Gnuplot settings
echo "# Let's output to a jpeg file
set terminal jpeg size 1280,720
# This sets the aspect ratio of the graph
set size 1, 1
# The file we'll write to
set output 'benchmark_${1}_${2}.png'
# The graph title
set title 'Benchmark: ${1} ${2}'
# Where to place the legend/key
set key left top
# Draw gridlines oriented on the y axis
set grid y
# Specify that the x-series data is time data
set xdata time
# Specify the *input* format of the time data
set timefmt '%s'
# Specify the *output* format for the x-axis tick labels
set format x '%S'
# Label the x-axis
set xlabel 'seconds'
# Label the y-axis
set ylabel 'response time (ms)'
set datafile separator '\\t'" > /tmp/plotme


## Loop over parameters
c=1
for var in "$@"
do

    ## skipping first parameters (concurrency and requests)
    if [ $c -gt 2 ]
    then

    ## apache-bench
        ab $1 $2 -g "gnuplot_${c}.out" "${var}"

    ## if for concat stuff
    if [ $c -gt 3 ]
    then
        echo -e ", 'gnuplot_${c}.out' every ::2 using 2:5 title '${var}' with points\\" >> /tmp/plotme
    else
        echo -e "plot 'gnuplot_${c}.out' every ::2 using 2:5 title '${var}' with points\\" >> /tmp/plotme
    fi
    fi

    let c++
done

## plotting
gnuplot /tmp/plotme

echo -e "\n Success! Result image is: benchmark_${1}_${2}.png"

## show the image
open benchmark_${1}_${2}.png > /dev/null &