first pass at benchmarking loading many classes

diff --git a/benchmarks/lotsa-classes.pl b/benchmarks/lotsa-classes.pl
new file mode 100644 (file)
index 0000000..8c846cc
--- /dev/null
+++ b/benchmarks/lotsa-classes.pl
@@ -0,0 +1,99 @@
+#!/usr/bin/env perl
+
+use warnings FATAL => 'all';
+use strict;
+use File::Temp;
+use Path::Class;
+use String::TT qw(tt strip);
+
+my $number_of_classes = shift || 1500;
+my $t = shift || File::Temp->newdir;
+my $tmp = dir($t);
+$tmp->rmtree;
+$tmp->mkpath;
+(-d $tmp) or die "not a dir: $tmp";
+#print "$tmp\n";
+
+my %class_writer = (
+    'Moose' => sub {
+        my $name = shift;
+        return strip tt q{
+            package [% name %];
+            use Moose;
+            has 'x' => ( is => 'ro', isa => 'Str' );
+            __PACKAGE__->meta->make_immutable;
+            1;
+            __END__
+        };
+    },
+    'Moo' => sub {
+        my $name = shift;
+        return strip tt q{
+            package [% name %];
+            use Moo;
+            has 'x' => ( is => 'ro', isa => 'Str' );
+            1;
+            __END__
+        };
+    },
+    'Mo' => sub {
+        my $name = shift;
+        return strip tt q{
+            package [% name %];
+            use Mo;
+            has 'x' => ( is => 'ro', isa => 'Str' );
+            1;
+            __END__
+        };
+    },
+    'Mouse' => sub {
+        my $name = shift;
+        return strip tt q{
+            package [% name %];
+            use Mouse;
+            has 'x' => ( is => 'ro', isa => 'Str' );
+            __PACKAGE__->meta->make_immutable;
+            1;
+            __END__
+        };
+    },
+    'plain-package' => sub {
+        my $name = shift;
+        return strip tt q{
+            package [% name %];
+            sub x {}
+            1;
+            __END__
+        };
+    },
+);
+
+my $class_prefix = 'TmpClassThingy';
+my %lib_map;
+for my $module (sort keys %class_writer) {
+    my $lib = $tmp->subdir($module . '-lib');
+    $lib->mkpath;
+    my $all_fh = $lib->file('All.pm')->openw;
+    for my $n (1 .. $number_of_classes) {
+        my $class_name = $class_prefix . $n;
+        my $fh = $lib->file($class_name . '.pm')->openw;
+        $fh->say($class_writer{$module}->($class_name)) or die;
+        $fh->close or die;
+        $all_fh->say("use $class_name;");
+    }
+    $all_fh->say('1;');
+    $all_fh->close or die;
+    $lib_map{$module} = $lib;
+}
+
+#$DB::single = 1;
+for my $module (sort keys %lib_map) {
+    my $lib = $lib_map{$module};
+    print "$module\n";
+    my $cmd = "time -p $^X -I$lib -MAll -e '1'";
+    `$cmd > /dev/null 2>&1`; # to cache
+#    print "$cmd\n";
+    system($cmd);
+    print "\n";
+}
+