disks benchmarks with hdparm, dd, iozone

gistfile1.txt

#!/bin/bash
set -e


if [ "$EUID" -ne 0 ]; then 
    echo "Please run this script as root"
    exit
fi

echo "The device you want to test needs to be mounted. The script will write a 100MBytes and 1Gb file. It may take a long time depending mainly on your hardware..."

echo "Enter the device to test (eg: /dev/sda):"
read device

mountpoint=`mount |grep -m 1 $device | cut -d" " -f3`
echo "Moving to $mountpoint"

echo "checking iozone3 package"
PKG_MANAGER=$( command -v yum || command -v apt-get ) || echo "Neither yum nor apt-get found"

if [ "$PKG_MANAGER" == "/usr/bin/yum" ]; then
    # need epel repository
    iozone="--enablerepo=epel iozone"
elif [ "$PKG_MANAGER" == "/usr/bin/apt-get" ]; then
    # need non-free repository
    # echo "deb http://ftp.fr.debian.org/debian `lsb_release -c |awk '{print $2}'` main non-free" > /etc/apt/sources.list.d/nonfree.list
    # apt-get update
    iozone="iozone3"
fi

$PKG_MANAGER install $iozone

basenamedev=`basename $device`
RESULT_DIR="~/disk-results-benchs"

mkdir -p $RESULT_DIR

Hdparm_func ()
{
  echo "########################################################"
  echo "Retrieve informations on specific disk"
  hdparm -I $device > $RESULT_DIR"/"$basenamedev"_hdparm_info.out"
  echo "########################################################"
  echo "########################################################"
  echo "Test disk $device with hdparm"
  sync ; echo 3 > /proc/sys/vm/drop_caches ; /usr/bin/time hdparm -tT $device > $RESULT_DIR/$basenamedev"_hdparm.out" 2>&1
  echo "Writing results to "$RESULT_DIR"/"$basenamedev"_hdparm.out"
}


HundredMBsize_eightKchunks ()
{
  echo "The write tests will write a 100MBytes file with 8KBytes chunks"
  echo "########################################################"
  echo "Test read/write on $device with iozone with 2<->10 threads"
  iozone -R -b "$RESULT_DIR"/results_`hostname`_"$basenamedev"_8k100M.ods -r 8k -s 100m -l 2 -u 10 $mountpoint
  echo "Writing results to "$RESULT_DIR"/results_`hostname`_"$basenamedev"_8k100M.ods"
  echo "########################################################"
  echo "Write test on $device with dd (100Mb in 8Kb chunks)"
  # test with dd. Drop the cache before.
  sync ; echo 3 > /proc/sys/vm/drop_caches ; /usr/bin/time dd if=/dev/zero of=$mountpoint/dd.tmp bs=8K count=12207 conv=fsync > "$RESULT_DIR"/$basenamedev"_dd8k100M.out" 2>&1
  echo "Writing results to "$RESULT_DIR"/"$basenamedev"_dd8k100M.out"
  rm -f dd.tmp
}

OneGBsize_oneBlock ()
{
  echo "The write tests will write a 1GBytes file with only one big block."
  echo "########################################################"
  echo "Test read/write on $device with iozone on 1 thread."
  iozone -R -b "$RESULT_DIR"/results_`hostname`_"$basenamedev".ods -s 1g $mountpoint
  echo "Writing results to "$RESULT_DIR"/results_`hostname`_"$basenamedev"_1g.ods"
  echo "########################################################"
  echo "Write test on $device with dd (1Gb, count=1)."
  # test with dd. Drop the cache before.
  sync ; echo 3 > /proc/sys/vm/drop_caches ; /usr/bin/time dd if=/dev/zero of=$mountpoint/dd.tmp bs=1GB count=1 conv=fsync > "$RESULT_DIR"/$basenamedev"_dd1g.out" 2>&1
  echo "Writing results to "$RESULT_DIR"/"$basenamedev"_dd1g.out"
  rm -f dd.tmp
}


Hdparm_func
OneGBsize_oneBlock
HundredMBsize_eightKchunks