Adam's Blog

#!/bin/bash

path=$1

size=1000

if [ $# -ne 1 ]; then

        echo "Usage: `basename $0` "

        exit 1

fi

# Make file N MB large, time it to write

t1=`date +%s`

dd if=/dev/zero of=$path count=$(( 1024*1024*$size / 512 )) bs=512 &> /dev/null

t2=`date +%s`

echo -n "Write speed MB/s :"

echo "$size / ($t2 - $t1)" | bc

# Read from file created in previous step, time it to read

t1=`date +%s`

dd if=$path of=/dev/null count=$(( 1024*1024*$size / 512 )) bs=512 &> /dev/null

t2=`date +%s`

echo -n "Read speed MB/s :"

echo "$size / ($t2 - $t1)" | bc

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