set grid
set xlabel "Time [ms]"
set ylabel "Latency profile [messages]"
-plot [0:600] [1:$COUNT] \
+plot [0:1] [1:$COUNT] \
"len2-hist.txt" with lp lt 1 title "2 byte messages", \
"len4-hist.txt" with lp lt 2 title "4 byte messages", \
"len6-hist.txt" with lp lt 3 title "6 byte messages", \