wrapper for weighttp

bench.sh

#!/bin/bash
REQUESTS=( 50 100 200 400 800 1600 3200 5000 )
USERS=( 5 10 20 40 80 160 320 500 )
LOG=/tmp/bench.log
REQ_LOG=/tmp/req.log
TIME_LOG=/tmp/time.log
WEBSERVER=[enter webserver IP]      # used to remotely restart apache

# Argument checking
if [[ $# -ne 2 ]]; then
        echo "Usage: bench.sh [URL] '[APACHE RESTART CMD]'" > /dev/stderr
        exit
fi

run_benchmark() {
        echo > $LOG
        weighttp $1 >> $LOG
        sleep 1
}

echo > $REQ_LOG
echo > $TIME_LOG

for i in {1..3}; do
        ssh root@$WEBSERVER -t "$2"     # restarts apache
        sleep 2
        echo -n "Round $i"
        echo "Round $i" >> $TIME_LOG
        echo "Round $i" >> $REQ_LOG

        for x in {0..7}; do
                run_benchmark " -k -n ${REQUESTS[$x]} -c ${USERS[$x]} -t 1 $1"
                grep "Total time" $LOG | grep -Po "\.\d{3}|\d+\.\d{3}"  >> $TIME_LOG
                grep "Requests per sec" $LOG | grep -Po "\d+" >> $REQ_LOG
                echo -n "."
        done
        echo "Done"

        # Don't bother waiting after the 3rd round
        if [ $i -ne 3 ]; then
                sleep 30
        fi
done

cat $REQ_LOG $TIME_LOG