#!perl -w
use strict;
use Benchmark qw(:hireswallclock countit);
use Imager;

my $im = Imager->new(xsize => 1000, ysize => 1000);
my $im_pal = Imager->new(xsize => 1000, ysize => 1000, type => "paletted");
my @colors = map Imager::Color->new($_), qw/red green blue white black/;
$im_pal->addcolors(colors => \@colors);
my $color = $colors[0];
my $other = Imager::Color->new("pink");

countthese
  (5,
   {
    box0010 => sub {
      $im->box(xmax => 10, ymax => 10, color => $other)
	for 1 .. 100;
    },
    box0010c => sub {
      $im->box(xmax => 10, ymax => 10, color => "pink")
	for 1 .. 100;
    },
    box0010d => sub {
      $im->box(xmax => 10, ymax => 10)
	for 1 .. 100;
    },
    box0100 => sub {
      $im->box(xmax => 100, ymax => 100, color => $other)
	for 1 .. 100;
    },
    box0500 => sub {
      $im->box(xmax => 500, ymax => 500, color => $other)
	for 1 .. 100;
    },
    box1000 => sub {
      $im->box(color => $other)
	for 1 .. 100;
    },
    palbox0010 => sub {
      $im_pal->box(xmax => 10, ymax => 10, color => $color)
	for 1 .. 100;
    },
    palbox0100 => sub {
      $im_pal->box(xmax => 100, ymax => 100, color => $color)
	for 1 .. 100;
    },
    palbox0500 => sub {
      $im_pal->box(xmax => 500, ymax => 500, color => $color)
	for 1 .. 100;
    },
    palbox1000 => sub {
      $im_pal->box(color => $color)
	for 1 .. 100;
    },

    fbox0010 => sub {
      $im->box(xmax => 10, ymax => 10, filled => 1, color => $other)
	for 1 .. 100;
    },
    fbox0010c => sub {
      $im->box(xmax => 10, ymax => 10, filled => 1, color => "pink")
	for 1 .. 100;
    },
    fbox0010d => sub {
      $im->box(xmax => 10, ymax => 10, filled => 1)
	for 1 .. 100;
    },
    fbox0100 => sub {
      $im->box(xmax => 100, ymax => 100, filled => 1, color => $other)
	for 1 .. 100;
    },
    fbox0500 => sub {
      $im->box(xmax => 500, ymax => 500, filled => 1, color => $other)
	for 1 .. 100;
    },
    fbox1000 => sub {
      $im->box(color => $other, filled => 1)
	for 1 .. 100;
    },
    fpalbox0010 => sub {
      $im_pal->box(xmax => 10, ymax => 10, filled => 1, color => $color)
	for 1 .. 100;
    },
    fpalbox0100 => sub {
      $im_pal->box(xmax => 100, ymax => 100, filled => 1, color => $color)
	for 1 .. 100;
    },
    fpalbox0500 => sub {
      $im_pal->box(xmax => 500, ymax => 500, filled => 1, color => $color)
	for 1 .. 100;
    },
    fpalbox1000 => sub {
      $im_pal->box(filled => 1, color => $color)
	for 1 .. 100;
    },
   }
  );

$im_pal->type eq "paletted" or die "Not paletted anymore";

sub countthese {
  my ($limit, $what) = @_;

  for my $key (sort keys %$what) {
    my $bench = countit($limit, $what->{$key});
    printf "$key: %.1f /s (%f / iter)\n", $bench->iters / $bench->cpu_p,
      $bench->cpu_p / $bench->iters;
  }
}

__END__

Original:

box0010: 397.7 /s (0.002514 / iter)
box0010c: 3.3 /s (0.305882 / iter)
box0010d: 399.6 /s (0.002502 / iter)
box0100: 329.5 /s (0.003035 / iter)
box0500: 191.5 /s (0.005223 / iter)
box1000: 130.6 /s (0.007657 / iter)
fbox0010: 372.3 /s (0.002686 / iter)
fbox0010c: 3.3 /s (0.300588 / iter)
fbox0010d: 383.2 /s (0.002610 / iter)
fbox0100: 63.8 /s (0.015685 / iter)
fbox0500: 2.8 /s (0.361429 / iter)
fbox1000: 0.7 /s (1.435000 / iter)
fpalbox0010: 370.9 /s (0.002696 / iter)
fpalbox0100: 53.2 /s (0.018799 / iter)
fpalbox0500: 2.4 /s (0.413077 / iter)
fpalbox1000: 0.6 /s (1.700000 / iter)
palbox0010: 390.2 /s (0.002563 / iter)
palbox0100: 316.9 /s (0.003155 / iter)
palbox0500: 171.8 /s (0.005820 / iter)
palbox1000: 115.0 /s (0.008694 / iter)

Re-work sub box():

box0010: 786.0 /s (0.001272 / iter)
box0010c: 3.3 /s (0.300000 / iter)
box0010d: 463.7 /s (0.002157 / iter)
box0100: 556.6 /s (0.001797 / iter)
box0500: 254.4 /s (0.003930 / iter)
box1000: 154.8 /s (0.006460 / iter)
fbox0010: 700.9 /s (0.001427 / iter)
fbox0010c: 3.3 /s (0.302353 / iter)
fbox0010d: 437.0 /s (0.002288 / iter)
fbox0100: 69.2 /s (0.014444 / iter)
fbox0500: 2.8 /s (0.357143 / iter)
fbox1000: 0.7 /s (1.437500 / iter)
fpalbox0010: 673.5 /s (0.001485 / iter)
fpalbox0100: 46.8 /s (0.021377 / iter)
fpalbox0500: 2.0 /s (0.505000 / iter)
fpalbox1000: 0.5 /s (2.140000 / iter)
palbox0010: 740.9 /s (0.001350 / iter)
palbox0100: 473.2 /s (0.002113 / iter)
palbox0500: 186.2 /s (0.005371 / iter)
palbox1000: 109.1 /s (0.009167 / iter)

re-work i_box_filled():

box0010: 783.0 /s (0.001277 / iter)
box0010c: 3.3 /s (0.300588 / iter)
box0010d: 463.7 /s (0.002157 / iter)
box0100: 548.2 /s (0.001824 / iter)
box0500: 250.2 /s (0.003997 / iter)
box1000: 155.1 /s (0.006448 / iter)
fbox0010: 743.7 /s (0.001345 / iter)
fbox0010c: 3.3 /s (0.302941 / iter)
fbox0010d: 448.3 /s (0.002231 / iter)
fbox0100: 147.8 /s (0.006765 / iter)
fbox0500: 7.6 /s (0.132308 / iter)
fbox1000: 1.9 /s (0.521000 / iter)
fpalbox0010: 784.9 /s (0.001274 / iter)
fpalbox0100: 424.7 /s (0.002355 / iter)
fpalbox0500: 42.6 /s (0.023496 / iter)
fpalbox1000: 11.4 /s (0.087966 / iter)
palbox0010: 778.8 /s (0.001284 / iter)
palbox0100: 541.5 /s (0.001847 / iter)
palbox0500: 238.0 /s (0.004203 / iter)
palbox1000: 141.1 /s (0.007088 / iter)

optimize getwidth/getheight:

box0010: 832.5 /s (0.001201 / iter)
box0010c: 3.4 /s (0.297647 / iter)
box0010d: 491.3 /s (0.002035 / iter)
box0100: 594.7 /s (0.001682 / iter)
box0500: 259.1 /s (0.003859 / iter)
box1000: 158.5 /s (0.006310 / iter)
fbox0010: 798.1 /s (0.001253 / iter)
fbox0010c: 3.3 /s (0.300588 / iter)
fbox0010d: 477.7 /s (0.002093 / iter)
fbox0100: 148.5 /s (0.006735 / iter)
fbox0500: 7.5 /s (0.134103 / iter)
fbox1000: 1.9 /s (0.530000 / iter)
fpalbox0010: 829.0 /s (0.001206 / iter)
fpalbox0100: 444.1 /s (0.002252 / iter)
fpalbox0500: 43.0 /s (0.023260 / iter)
fpalbox1000: 11.5 /s (0.087333 / iter)
palbox0010: 826.0 /s (0.001211 / iter)
palbox0100: 553.2 /s (0.001808 / iter)
palbox0500: 242.7 /s (0.004119 / iter)
palbox1000: 144.4 /s (0.006923 / iter)

pull stuff out of the hash fast:

box0010: 1332.0 /s (0.000751 / iter)
box0010c: 3.4 /s (0.295882 / iter)
box0010d: 646.6 /s (0.001546 / iter)
box0100: 805.3 /s (0.001242 / iter)
box0500: 293.1 /s (0.003412 / iter)
box1000: 161.7 /s (0.006183 / iter)
fbox0010: 1215.2 /s (0.000823 / iter)
fbox0010c: 3.4 /s (0.295294 / iter)
fbox0010d: 600.9 /s (0.001664 / iter)
fbox0100: 160.2 /s (0.006241 / iter)
fbox0500: 7.6 /s (0.131250 / iter)
fbox1000: 1.9 /s (0.519000 / iter)
fpalbox0010: 1295.2 /s (0.000772 / iter)
fpalbox0100: 547.2 /s (0.001828 / iter)
fpalbox0500: 43.8 /s (0.022845 / iter)
fpalbox1000: 11.5 /s (0.087333 / iter)
palbox0010: 1314.1 /s (0.000761 / iter)
palbox0100: 752.2 /s (0.001330 / iter)
palbox0500: 269.4 /s (0.003712 / iter)
palbox1000: 145.3 /s (0.006884 / iter)

make _is_color_object xs

box0010: 1359.4 /s (0.000736 / iter)
box0010c: 3.4 /s (0.294118 / iter)
box0010d: 635.6 /s (0.001573 / iter)
box0100: 818.6 /s (0.001222 / iter)
box0500: 294.3 /s (0.003398 / iter)
box1000: 162.9 /s (0.006140 / iter)
fbox0010: 1230.8 /s (0.000813 / iter)
fbox0010c: 3.2 /s (0.313125 / iter)
fbox0010d: 608.7 /s (0.001643 / iter)
fbox0100: 158.5 /s (0.006308 / iter)
fbox0500: 7.5 /s (0.134103 / iter)
fbox1000: 1.9 /s (0.530000 / iter)
fpalbox0010: 1328.8 /s (0.000753 / iter)
fpalbox0100: 553.2 /s (0.001808 / iter)
fpalbox0500: 43.5 /s (0.022974 / iter)
fpalbox1000: 11.4 /s (0.087627 / iter)
palbox0010: 1344.8 /s (0.000744 / iter)
palbox0100: 783.0 /s (0.001277 / iter)
palbox0500: 274.5 /s (0.003643 / iter)
palbox1000: 147.9 /s (0.006761 / iter)

fix x color table caching check:

box0010: 1376.1 /s (0.000727 / iter)
box0010c: 257.9 /s (0.003877 / iter)
box0010d: 642.4 /s (0.001557 / iter)
box0100: 820.2 /s (0.001219 / iter)
box0500: 294.0 /s (0.003402 / iter)
box1000: 163.2 /s (0.006129 / iter)
fbox0010: 1228.5 /s (0.000814 / iter)
fbox0010c: 252.8 /s (0.003956 / iter)
fbox0010d: 617.8 /s (0.001619 / iter)
fbox0100: 158.5 /s (0.006308 / iter)
fbox0500: 7.5 /s (0.133846 / iter)
fbox1000: 1.9 /s (0.530000 / iter)
fpalbox0010: 1343.4 /s (0.000744 / iter)
fpalbox0100: 557.3 /s (0.001794 / iter)
fpalbox0500: 43.9 /s (0.022759 / iter)
fpalbox1000: 11.5 /s (0.087000 / iter)
palbox0010: 1365.3 /s (0.000732 / iter)
palbox0100: 787.7 /s (0.001270 / iter)
palbox0500: 275.6 /s (0.003629 / iter)
palbox1000: 148.4 /s (0.006739 / iter)