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|
#!/usr/bin/perl
use strict;
use warnings;
use Benchmark qw[timethese];
=pod
This benchmark is designed to measure how long things with type constraints
take (constructors, accessors). It was created to measure the impact of
inlining type constraints.
=cut
{
package Thing;
use Moose;
has int => (
is => 'rw',
isa => 'Int',
);
has str => (
is => 'rw',
isa => 'Str',
);
has fh => (
is => 'rw',
isa => 'FileHandle',
);
has object => (
is => 'rw',
isa => 'Object',
);
has a_int => (
is => 'rw',
isa => 'ArrayRef[Int]',
);
has a_str => (
is => 'rw',
isa => 'ArrayRef[Str]',
);
has a_fh => (
is => 'rw',
isa => 'ArrayRef[FileHandle]',
);
has a_object => (
is => 'rw',
isa => 'ArrayRef[Object]',
);
has h_int => (
is => 'rw',
isa => 'HashRef[Int]',
);
has h_str => (
is => 'rw',
isa => 'HashRef[Str]',
);
has h_fh => (
is => 'rw',
isa => 'HashRef[FileHandle]',
);
has h_object => (
is => 'rw',
isa => 'HashRef[Object]',
);
__PACKAGE__->meta->make_immutable;
}
{
package Simple;
use Moose;
has str => (
is => 'rw',
isa => 'Str',
);
__PACKAGE__->meta->make_immutable;
}
my @ints = 1 .. 10;
my @strs = 'a' .. 'j';
my @fhs = map { my $fh; open $fh, '<', $0 or die; $fh; } 1 .. 10;
my @objects = map { Thing->new } 1 .. 10;
my %ints = map { $_ => $_ } @ints;
my %strs = map { $_ => $_ } @ints;
my %fhs = map { $_ => $_ } @fhs;
my %objects = map { $_ => $_ } @objects;
my $thing = Thing->new;
my $simple = Simple->new;
timethese(
1_000_000, {
constructor_simple => sub {
Simple->new( str => $strs[0] );
},
accessors_simple => sub {
$simple->str( $strs[0] );
},
}
);
timethese(
20_000, {
constructor_all => sub {
Thing->new(
int => $ints[0],
str => $strs[0],
fh => $fhs[0],
object => $objects[0],
a_int => \@ints,
a_str => \@strs,
a_fh => \@fhs,
a_object => \@objects,
h_int => \%ints,
h_str => \%strs,
h_fh => \%fhs,
h_object => \%objects,
);
},
accessors_all => sub {
$thing->int( $ints[0] );
$thing->str( $strs[0] );
$thing->fh( $fhs[0] );
$thing->object( $objects[0] );
$thing->a_int( \@ints );
$thing->a_str( \@strs );
$thing->a_fh( \@fhs );
$thing->a_object( \@objects );
$thing->h_int( \%ints );
$thing->h_str( \%strs );
$thing->h_fh( \%fhs );
$thing->h_object( \%objects );
},
}
);
|
