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#!/usr/bin/perl -w
BEGIN
{
use lib 'lib';
$|++;
}
use Scalar::Util qw/weaken/;
use Time::HiRes qw/time/;
use Data::Dumper;
use Graph::Easy;
my $N1 = shift || 5000;
my $N2 = shift || 40000;
my $STEP = shift || 2;
# results
my $RC = [];
print "Using Graph::Easy v$Graph::Easy::VERSION\n";
for (my $N = $N1; $N < $N2; $N *= $STEP)
{
my @R = ($N);
my $start = time();
print scalar localtime(), " start\n";
normal($N);
print scalar localtime(), " done, took ", sprintf("%.2f", time() - $start)," seconds\n";
push @R, sprintf("%.2f",time() - $start);
$start = time();
print scalar localtime(), " start\n";
my $graph = graph($N); # return the graph to show that creation sep.
print scalar localtime(), " done creation, took ", sprintf("%.2f", time() - $start)," seconds\n";
push @R, sprintf("%.2f",time() - $start);
$start = time();
$graph = undef;
print scalar localtime(), " done destroy, took ", sprintf("%.2f", time() - $start)," seconds\n";
push @R, sprintf("%.2f",time() - $start);
$start = time();
push @$RC, [ @R ];
}
print "\n";
print "\n", join("\t\t", 'N', 'Normal', 'Graph-Easy'), "\tGraph-Easy\n";
print join("\t\t", '', '', 'Create','Destroy'), "\n";
print '-' x 70,"\n";
# print results
for my $R (@$RC)
{
print join("\t\t", @$R), "\n";
}
sub graph
{
my $N = shift;
my $graph = Graph::Easy->new();
# create N objects, and "link" them together
for my $i (1..$N)
{
my $b = $i; $b++;
$graph->add_edge($i,$b);
}
print Dumper($graph),"\n" if $N < 10;
$graph;
}
sub normal
{
my $N = shift;
my $container = {};
my $old_object;
# create N objects, and "link" them together
for my $i (1..$N)
{
my $o = new_object($i);
$container->{nodes}->{$i} = $o;
$o->{graph} = $container;
weaken($o->{graph});
if ($old_object)
{
my $link = new_link($old_object, $o, $i);
$container->{edges}->{$i} = $link;
$link->{graph} = $container;
{
no warnings;
weaken($link->{graph});
weaken($link->{to}->{graph});
weaken($link->{from}->{graph});
}
}
$old_object = $o;
}
print Dumper($container),"\n" if $N < 10;
}
sub new_object
{
my $id = shift;
my $o = bless { id => $id, att => {}, }, 'main';
$o;
}
sub new_link
{
my ($a,$b,$id) = @_;
my $link = bless { id => $id, from => $a, to => $b, att => {} }, 'main';
$a->{edges}->{$id} = $link;
$b->{edges}->{$id} = $link;
$link;
}
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