#!/usr/bin/perl

#

# arguments: one of more report files

#

# Christian Mautner <christian * mautner . ca>, 2005-10-31

#

# This script is based loosely on the Generate_Graph set

# of scripts that come with iozone, but is a complete re-write

#

# The main reason to write this was the need to compare the behaviour of

# two or more different setups, for tuning filesystems or

# comparing different pieces of hardware.

#

# This script is in the public domain, too short and too trivial

# to deserve a copyright.

#

# Simply run iozone like, for example, ./iozone -a -g 4G > config1.out (if your machine has 4GB)

# and then run perl report.pl config1.out

# or get another report from another box into config2.out and run

# perl report.pl config1.out config2.out

# the look in the report_* directory for .png

#

# If you don't like png or the graphic size, search for "set terminal" in this file and put whatever gnuplot

# terminal you want. Note I've also noticed that gnuplot switched the set terminal png syntax

# a while back, you might need "set terminal png small size 900,700"

#

@Reports=@ARGV;

die "usage: $0 <iozone.out> [<iozone2.out>...]\n" if not @Reports or grep (m|^-|, @Reports);

die "report files must be in current directory" if grep (m|/|, @Reports);

%columns=(

         'write'     =>3,

         'read'      =>5,

         'rewrite'   =>4,

         'reread'    =>6,

         'randread'  =>7,

         'randwrite' =>8,

         'bkwdread'  =>9,

         'recrewrite'=>10,

         'strideread'=>11,

         'fwrite'    =>12,

         'frewrite'  =>13,

         'fread'     =>14,

         'freread'   =>15,

         );

#

# create output directory. the name is the concatenation

# of all report file names (minus the file extension, plus

# prefix report_)

#

$outdir="report_".join("_",map{/([^\.]+)(\..*)?/ && $1}(@Reports));

print STDERR "Output directory: $outdir ";

if ( -d $outdir )

{

    print STDERR "(removing old directory) ";

    system "rm -rf $outdir";

}

mkdir $outdir or die "cannot make directory $outdir";

print STDERR "done.\nPreparing data files...";

foreach $report (@Reports)

{

    open(I, $report) or die "cannot open $report for reading";

    $report=~/^([^\.]+)/;

    $datafile="$1.dat";

    push @datafiles, $datafile;

    open(O, ">$outdir/$datafile") or die "cannot open $outdir/$datafile for writing";

    open(O2, ">$outdir/2d-$datafile") or die "cannot open $outdir/$datafile for writing";

    while()

    {

        next unless ( /^[\s\d]+$/ );

        @split = split();

        next unless ( @split >= 8 );

        print O;

        print O2 if $split[1] == 16384 or $split[0] == $split[1];

    }

    close I, O, O2;

}

print STDERR "done.\nGenerating graphs:";

foreach $column (keys %columns)

{

    print STDERR " $column";

    open(G, ">$outdir/$column.do") or die "cannot open $outdir/$column.do for writing";

    print G qq{

set title "Iozone performance: $column"

set grid lt 2 lw 1

set surface

set parametric

set xtics

set ytics

set logscale x 2

set logscale y 2

set autoscale z

#set xrange [2.**5:2.**24]

set xlabel "File size in KBytes"

set ylabel "Record size in Kbytes"

set zlabel "Kbytes/sec"

set style data lines

set dgrid3d 80,80,3

#set terminal png small picsize 900 700

set terminal png small size 900 700

set output "$column.png"

};

    print G "splot ". join(", ", map{qq{"$_" using 1:2:$columns{$column} title "$_"}}(@datafiles));

    print G "\n";

    close G;

    open(G, ">$outdir/2d-$column.do") or die "cannot open $outdir/$column.do for writing";

    print G qq{

set title "Iozone performance: $column"

#set terminal png small picsize 450 350

set terminal png small size 450 350

set logscale x

set xlabel "File size in KBytes"

set ylabel "Kbytes/sec"

set output "2d-$column.png"

};

    print G "plot ". join(", ", map{qq{"2d-$_" using 1:$columns{$column} title "$_" with lines}}(@datafiles));

    print G "\n";

    close G;

    if ( system("cd $outdir && gnuplot $column.do && gnuplot 2d-$column.do") )

    {

        print STDERR "(failed) ";

    }

    else

    {

        print STDERR "(ok) ";

    }

}

print STDERR "done.\n";