set term postscript eps 20
set output "20.delay.eps"
set xlabel "Time / s"
set ylabel "Latency / us"
plot "20.delay.91750400.dat" title "91750400 Bytes" with lines, "20.delay.45875200.dat" title "45875200 Bytes" with lines, "20.delay.22937600.dat" title "22937600 Bytes" with lines, "20.delay.11468800.dat" title "11468800 Bytes" with lines
show output