Script that benchmark the files creation.

iobench.sh

#!/bin/sh

#
# Script who bench file creation
#

HOSTNAME=$(hostname)
PID=$$
USAGE="Usage: iobench.sh TIMEOUT PATH"

if [ $1 ]; then
    TIMEOUT=$1
else
    echo ${USAGE}
    exit
fi
if [ $2 ]; then
    BASEDIR=$2
else
    echo ${USAGE}
    exit
fi

echo "Timout: ${TIMEOUT}"
echo "BaseDir: ${BASEDIR}"
echo -e "HostName: ${HOSTNAME}\n"

TIMESTART=$(date '+%s')
TIMEEND=$(expr $TIMESTART + $TIMEOUT)
FILECNT=0
RCNT=1

while [ 1 ]; do
    ROOTPATH=${BASEDIR}/${HOSTNAME}_${PID}_${RCNT}
    mkdir ${ROOTPATH}

    DCNT=1
    while [ ${DCNT} -le 100 ]; do
        DIRPATH=${ROOTPATH}/dir_${DCNT}
        mkdir ${DIRPATH}

        FCNT=1
        while [ ${FCNT} -le 100 ]; do
            FILEPATH=${DIRPATH}/file_${FCNT}.bin
            dd if=/dev/zero of=${FILEPATH} bs=65536 count=16 &> /dev/null
            sync
            echo -n "."
            let FILECNT=FILECNT+1
            let FCNT=FCNT+1

            TIMENOW=$(date '+%s')
            if [ ${TIMENOW} -ge ${TIMEEND} ]; then
                echo "PID ${PID} : ${FILECNT} files created in $[${TIMENOW} - ${TIMESTART}] seconds."
                exit
            fi
            done
            echo ""
            let DCNT=DCNT+1
        done
    let RCNT=RCNT+1
done