ddBench v1.01

#!/bin/bash
#
# ddBench v1.01 - A simple SSD/HDD sequential read/write Benchmark
#
# Notes and Features:
# 1. Run this script as sudo, for 'sync' and 'drop_caches'
#    to be properly performed before each cycle and at the end of the benchmark.
# 2. If you have smartmontools installed, and you're not running off a virtual machine,
#    then search for "UNCOMMENT THE TWO LINES BELOW ME:" inside this script and
#    uncomment the two lines, for added functionality.
#    This *should* enable ddBench to list the total number of hours which you disk has
#    been up and running.
# 3. The file which this test generates (testfile.test) will be erased after each cycle.
#
# Changelog:
# v1.01 - Added HDD/SSD Model and Firmware output.
#         Added HDD/SSD total uptime output.
# v1.00 - Initial release
#
echo
echo "ddBench v1.01 - A simple SSD/HDD sequential read/write Benchmark"
echo "Starting now, paste your results starting below this line:"
echo
cname=$( awk -F: '/model name/ {name=$2} END {print name}' /proc/cpuinfo )
cores=$( awk -F: '/model name/ {core++} END {print core}' /proc/cpuinfo )
freq=$( awk -F: ' /cpu MHz/ {freq=$2} END {print freq}' /proc/cpuinfo )
tram=$( free -m | awk 'NR==2 {print $2}' )
swap=$( free -m | awk 'NR==4 {print $2}' )
up=$(uptime|awk '{ $1=$2=$(NF-6)=$(NF-5)=$(NF-4)=$(NF-3)=$(NF-2)=$(NF-1)=$NF=""; print }')
echo "CPU model : $cname"
echo "Number of cores : $cores"
echo "CPU frequency : $freq MHz"
echo "Total amount of RAM : $tram MB"
echo "Total amount of Swap : $swap MB"
echo "System uptime : $up"
echo "Listing installed and detected HDD/SSD drives:"
hdparm -I /dev/sd? | grep -e Model -e Firmware

# UNCOMMENT THE TWO LINES BELOW ME:
#echo "Listing installed HDD/SSD drives' total uptime:
#smartctl -a /dev/sda | grep Power_On

echo
sync && echo 3 > /proc/sys/vm/drop_caches
echo "4KB x 262,144 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=4k count=262144
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "8KB x 131,072 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=8k count=131072
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "16KB x 65,536 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=16k count=65536
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "32KB x 32,768 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=32k count=32768
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "64KB x 16,384 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=64k count=16384
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "128KB x 8,192 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=128k count=8192
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "256KB x 4,096 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=256k count=4096
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "512KB x 2,048 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=512k count=2048
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "1,024KB x 1,024 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=1024k count=1024
rm testfile.test
echo
echo "2,048KB x 512 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=2048k count=512
rm testfile.test
echo
echo "4,096KB x 256 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=4096k count=256
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "8,192KB x 128 times"
dd if=/dev/zero of=testfile.test conv=fdatasync bs=8192k count=128
rm testfile.test
sync && echo 3 > /proc/sys/vm/drop_caches
echo
echo "Done. Paste your results above this line."
echo