cpu.gplot

set ylabel "% Utilization"
set title "Processor Utilization"
plot \
for [i=5:8:1] \
    datafile using 3:(sum [col=i:8] column(col)) \
    title columnheader(i) \
    with filledcurves x1, \
for [i=5:8:1] \
    datafile using 3:(sum [col=i:8] column(col)) \
    notitle \
    with lines lc rgb "#000000" lw 1