sumarize-sar.sh

#!/bin/sh
set -eux
cd $(dirname $0)

join_sar() {
    local cpu_out=sar_cpu$1.out
    local io_out=sar_io$1.out
    local sar_out=sar$1.out
    local cpu_out_temp=$cpu_out.temp
    local io_out_temp=$io_out.temp

    tail -n +3 $cpu_out | sed 's/ \+/ /g' | cut -d ' ' -f 1,3 > $cpu_out_temp
    tail -n +3 $io_out | sed 's/ \+/ /g' | cut -d ' ' -f 1,5,6 > $io_out_temp
    join $cpu_out_temp $io_out_temp | awk '{ print NR-1 " " $2 " " $3*512/1000000.0 " " $4*512/1000000.0 }' | sed '1,1s/^/#/g' | sed '2i 0 0 0 0' > $sar_out
    rm $cpu_out_temp $io_out_temp
}

plot() {
    local sar_out=sar$1.out
    local eps=sar$1.eps
    local emf=sar$1.emf

    # local svg=sar$1.svg
    # set terminal svg dynamic;
    # set output '$svg';
    # replot;

    gnuplot <<EOPLT
set ytics nomirror;
set y2tics;
set grid;
set xlabel 'Time [sec]';
set ylabel 'CPU Usage [%]'
set y2label 'Disk Throughput [MB/s]'

set terminal eps;
set output '$eps'
plot '$sar_out' u 1:2 w l t 'CPU Usage', '$sar_out' u 1:3 w l t 'Disk Read' axes x1y2, '$sar_out' u 1:4 w l t 'Disk Write' axes x1y2;

set terminal emf;
set output '$emf';
replot;

EOPLT
}

if [ $# -ne 1 ]; then
    echo "Usage: [$0] directory"
    exit
fi

cd $1
for i in $(seq 1 9); do
    join_sar $i
    plot $i
done