diff -r 6fae69860129 -r 944224048b5a plot-bs.example
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plot-bs.example	Tue Nov 06 21:20:45 2012 +0100
@@ -0,0 +1,21 @@
+#! /usr/bin/gnuplot
+set terminal qt noraise
+set grid
+set xlabel 'size (MB)'
+set ylabel 'speed (MB/s)'
+set logscale y
+set title 'dd oflag=direct if=/dev/zero of=/dev/sdb'
+plot 'log-dd-512M-bs=1k.log' using 2:3 title 'bs=1k' with points , \
+     'log-dd-512M-bs=2k.log' using 2:3 title 'bs=2k' with points , \
+     'log-dd-512M-bs=4k.log' using 2:3 title 'bs=4k' with points , \
+     'log-dd-512M-bs=8k.log' using 2:3 title 'bs=8k' with points , \
+     'log-dd-512M-bs=16k.log' using 2:3 title 'bs=16k' with points , \
+     'log-dd-512M-bs=32k.log' using 2:3 title 'bs=32k' with points , \
+     'log-dd-512M-bs=64k.log' using 2:3 title 'bs=64k' with points , \
+     'log-dd-512M-bs=128k.log' using 2:3 title 'bs=128k' with points , \
+     'log-dd-512M-bs=256k.log' using 2:3 title 'bs=256k' with points 
+
+# interactive
+pause -1
+# continous
+#while (1) { pause 3; replot; }