1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
package Plack::Middleware::Debug::LWP;
$Plack::Middleware::Debug::LWP::VERSION = '0.3';
use strict;
use warnings;
use LWPx::Profile;
use parent qw(Plack::Middleware::Debug::Base);
=head1 NAME
Plack::Middleware::Debug::LWP - LWP Profiling Panel
=head1 VERSION
version 0.3
=head1 SYNOPSIS
enable 'Debug::LWP';
=head1 DESCRIPTION
This module provides a panel for the L<Plack::Middleware::Debug> that gives
profiling information for L<LWP::UserAgent> requests.
=cut
my $lwp_template = __PACKAGE__->build_template(<<'ENDOFIT');
<table>
<thead>
<tr>
<th>Request</th>
<th>Timing</th>
</tr>
</thead>
<tbody>
% my $i;
% while (@{$_[0]->{list}}) {
% my($key, $value) = splice(@{$_[0]->{list}}, 0, 2);
<tr class="<%= ++$i % 2 ? 'plDebugOdd' : 'plDebugEven' %>">
<td><pre><%= $key %></pre></td>
<td><%= $value %></td>
</tr>
% }
</tbody>
</table>
ENDOFIT
sub run {
my($self, $env, $panel) = @_;
LWPx::Profile::start_profiling();
return sub {
my $res = shift;
my $profile = LWPx::Profile::stop_profiling();
my @lines;
my ($time, $requests) = (0, 0);
for my $req (sort {
$profile->{$a}->{time_of_first_sample} <=> $profile->{$b}->{time_of_first_sample}
} keys %$profile) {
my $stats = $profile->{$req};
my $summary = sprintf("%.5f/%d (%.5f avg)", $stats->{total_duration}, $stats->{count}, $stats->{total_duration} / $stats->{count});
push(@lines, $req, $summary);
$requests += $stats->{count};
$time += $stats->{total_duration};
}
my $summary = sprintf("%d requests / %.2f seconds", $requests, $time);
$panel->nav_title("LWP Requests");
$panel->title("LWP Requests ($summary)");
$panel->nav_subtitle($summary);
$panel->content(
$self->render($lwp_template, { list => \@lines })
);
};
}
=head1 TODO
=over 2
=item *
The docs are pretty middling at the moment.
=back
=head1 AUTHORS
Chris Reinhardt
crein@cpan.org
Mark Ng
cpan@markng.co.uk
=head1 COPYRIGHT
This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the
LICENSE file included with this module.
=head1 SEE ALSO
L<Plack::Middleware::Debug>, L<LWP::UserAgent>, L<LWPx::Profile>, perl(1)
=cut
1;
__END__
|
