1 #! /usr/bin/gnuplot

     2 set terminal qt noraise

     3 set grid

     4 set xlabel 'size (MB)'

     5 set ylabel 'speed (MB/s)'

     6 set logscale y

     7 set title 'dd oflag=direct if=/dev/zero of=/dev/sdb'

     8 plot 'log-dd-512M-bs=1k.log' using 2:3 title 'bs=1k' with points , \

     9      'log-dd-512M-bs=2k.log' using 2:3 title 'bs=2k' with points , \

    10      'log-dd-512M-bs=4k.log' using 2:3 title 'bs=4k' with points , \

    11      'log-dd-512M-bs=8k.log' using 2:3 title 'bs=8k' with points , \

    12      'log-dd-512M-bs=16k.log' using 2:3 title 'bs=16k' with points , \

    13      'log-dd-512M-bs=32k.log' using 2:3 title 'bs=32k' with points , \

    14      'log-dd-512M-bs=64k.log' using 2:3 title 'bs=64k' with points , \

    15      'log-dd-512M-bs=128k.log' using 2:3 title 'bs=128k' with points , \

    16      'log-dd-512M-bs=256k.log' using 2:3 title 'bs=256k' with points 

    17 

    18 # interactive

    19 pause -1

    20 # continous

    21 #while (1) { pause 3; replot; }