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package Catmandu::Fix::Bind::benchmark;
use Catmandu::Sane;
our $VERSION = '1.2024';
use Moo;
use Time::HiRes qw(gettimeofday tv_interval);
use namespace::clean;
with 'Catmandu::Fix::Bind';
has output => (is => 'ro', required => 1);
has stats => (is => 'lazy');
sub _build_stats {
+{};
}
sub bind {
my ($self, $data, $code, $name) = @_;
$name = '<undef>' unless defined $name;
my $t0 = [gettimeofday];
$data = $code->($data);
my $elapsed = tv_interval($t0);
$self->stats->{$name}->{count} += 1;
$self->stats->{$name}->{elapsed} += $elapsed;
$data;
}
sub DESTROY {
my ($self) = @_;
local (*OUT);
open(OUT, '>', $self->output) || return undef;
printf OUT "%-8.8s\t%-40.40s\t%-8.8s\t%-8.8s\n", 'elapsed', 'command',
'calls', 'sec/command';
printf OUT "-" x 100 . "\n";
for my $key (
sort {$self->stats->{$b}->{elapsed} cmp $self->stats->{$a}->{elapsed}}
keys %{$self->stats}
)
{
my $speed
= $self->stats->{$key}->{elapsed} / $self->stats->{$key}->{count};
printf OUT "%f\t%-40.40s\t%d times\t%f secs/command\n",
$self->stats->{$key}->{elapsed}, $key,
$self->stats->{$key}->{count}, $speed;
}
printf OUT "\n\n";
close(OUT);
}
1;
__END__
=pod
=head1 NAME
Catmandu::Fix::Bind::benchmark - a binder that calculates the execution time of Fix functions
=head1 SYNOPSIS
do benchmark(output:/dev/stderr)
foo()
end
# will create as side effect computation statistics on the stderr
elapsed command calls sec/comm
-------------------------------------------------------------
0.000006 Catmandu::Fix::foo 1 times 0.000006 secs/command
=head1 DESCRIPTION
The benchmark binder computes all the Fix function plus as side effect
calculates the execution time of all wrapped functions over all input records.
=head1 CONFIGURATION
=head2 output
Required. The path of a file to which the benchmark statistics will be written.
=head1 SEE ALSO
L<Catmandu::Fix::Bind>
=cut
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