Profile of Class/Load.pm

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For script/ponapi
Run on Wed Feb 10 15:51:26 2016
Reported on Thu Feb 11 09:43:09 2016

Filename | /usr/local/share/perl/5.18.2/Class/Load.pm
Statements | Executed 189 statements in 1.42ms

Subroutines
Calls | P | F | Exclusive Time | Inclusive Time | Subroutine
--- | --- | --- | --- | --- | ---
1 | 1 | 1 | 679µs | 4.42ms | Class::Load::::BEGIN@11Class::Load::BEGIN@11
1 | 1 | 1 | 540µs | 6.23ms | Class::Load::::BEGIN@10Class::Load::BEGIN@10
10 | 2 | 1 | 155µs | 50.1ms | Class::Load::::try_load_classClass::Load::try_load_class (recurses: max depth 1, inclusive time 62µs)
9 | 3 | 1 | 77µs | 49.9ms | Class::Load::::load_classClass::Load::load_class (recurses: max depth 1, inclusive time 74µs)
1 | 1 | 1 | 20µs | 284µs | Class::Load::::load_optional_classClass::Load::load_optional_class
1 | 1 | 1 | 12µs | 37µs | Class::Load::::_nonexistent_fail_reClass::Load::_nonexistent_fail_re
1 | 1 | 1 | 10µs | 37µs | Class::Load::::BEGIN@12Class::Load::BEGIN@12
2 | 2 | 1 | 8µs | 8µs | Class::Load::::CORE:regcompClass::Load::CORE:regcomp (opcode)
1 | 1 | 1 | 8µs | 12µs | Class::Load::::_errorClass::Load::_error
1 | 1 | 1 | 7µs | 11µs | Class::Load::::BEGIN@8Class::Load::BEGIN@8
1 | 1 | 1 | 7µs | 60µs | Class::Load::::BEGIN@9Class::Load::BEGIN@9
1 | 1 | 1 | 6µs | 16µs | Class::Load::::BEGIN@7Class::Load::BEGIN@7
1 | 1 | 1 | 6µs | 6µs | Class::Load::::BEGIN@2Class::Load::BEGIN@2
1 | 1 | 1 | 6µs | 32µs | Class::Load::::BEGIN@18Class::Load::BEGIN@18
1 | 1 | 1 | 4µs | 4µs | Class::Load::::CORE:substClass::Load::CORE:subst (opcode)
1 | 1 | 1 | 2µs | 2µs | Class::Load::::CORE:qrClass::Load::CORE:qr (opcode)
1 | 1 | 1 | 600ns | 600ns | Class::Load::::CORE:matchClass::Load::CORE:match (opcode)
0 | 0 | 0 | 0s | 0s | Class::Load::::__ANON__[:154]Class::Load::__ANON__[:154]
0 | 0 | 0 | 0s | 0s | Class::Load::::__ANON__[:157]Class::Load::__ANON__[:157]
0 | 0 | 0 | 0s | 0s | Class::Load::::__ANON__[:182]Class::Load::__ANON__[:182]
0 | 0 | 0 | 0s | 0s | Class::Load::::__ANON__[:185]Class::Load::__ANON__[:185]
0 | 0 | 0 | 0s | 0s | Class::Load::::_croakClass::Load::_croak
0 | 0 | 0 | 0s | 0s | Class::Load::::_or_listClass::Load::_or_list
0 | 0 | 0 | 0s | 0s | Class::Load::::_version_fail_reClass::Load::_version_fail_re
0 | 0 | 0 | 0s | 0s | Class::Load::::load_first_existing_classClass::Load::load_first_existing_class

Call graph for these subroutines as a Graphviz dot language file.

Line | State ments | Time on line | Calls | Time in subs | Code
--- | --- | --- | --- | --- | ---
1 |  |  |  |  | package Class::Load;
2 |  |  |  |  | # spent 6µs within Class::Load::BEGIN@2 which was called: # once (6µs+0s) by App::Cmd::BEGIN@13 at line 4 BEGIN {
3 | 1 | 4µs |  |  | $Class::Load::AUTHORITY = 'cpan:SARTAK';
4 | 1 | 23µs | 1 | 6µs | } # spent 6µs making 1 call to Class::Load::BEGIN@2
5 |  |  |  |  | # git description: v0.20-8-gc4c6e08
6 | 1 | 900ns |  |  | $Class::Load::VERSION = '0.21';
7 | 2 | 31µs | 2 | 26µs | # spent 16µs (6+10) within Class::Load::BEGIN@7 which was called: # once (6µs+10µs) by App::Cmd::BEGIN@13 at line 7 use strict; # spent 16µs making 1 call to Class::Load::BEGIN@7 # spent 10µs making 1 call to strict::import
8 | 2 | 22µs | 2 | 15µs | # spent 11µs (7+4) within Class::Load::BEGIN@8 which was called: # once (7µs+4µs) by App::Cmd::BEGIN@13 at line 8 use warnings; # spent 11µs making 1 call to Class::Load::BEGIN@8 # spent 4µs making 1 call to warnings::import
9 | 2 | 23µs | 2 | 114µs | # spent 60µs (7+54) within Class::Load::BEGIN@9 which was called: # once (7µs+54µs) by App::Cmd::BEGIN@13 at line 9 use base 'Exporter'; # spent 60µs making 1 call to Class::Load::BEGIN@9 # spent 54µs making 1 call to base::import
10 | 2 | 81µs | 2 | 6.29ms | # spent 6.23ms (540µs+5.69) within Class::Load::BEGIN@10 which was called: # once (540µs+5.69ms) by App::Cmd::BEGIN@13 at line 10 use Data::OptList 'mkopt'; # spent 6.23ms making 1 call to Class::Load::BEGIN@10 # spent 61µs making 1 call to Sub::Install::__ANON__[Sub/Install.pm:270]
11 | 3 | 122µs | 2 | 4.43ms | # spent 4.42ms (679µs+3.74) within Class::Load::BEGIN@11 which was called: # once (679µs+3.74ms) by App::Cmd::BEGIN@13 at line 11 use Module::Implementation 0.04; # spent 4.42ms making 1 call to Class::Load::BEGIN@11 # spent 12µs making 1 call to UNIVERSAL::VERSION
12 | 1 | 3µs | 1 | 21µs | # spent 37µs (10+27) within Class::Load::BEGIN@12 which was called: # once (10µs+27µs) by App::Cmd::BEGIN@13 at line 17 use Module::Runtime 0.012 qw( # spent 21µs making 1 call to Module::Runtime::import
13 |  |  |  |  | check_module_name
14 |  |  |  |  | module_notional_filename
15 |  |  |  |  | require_module
16 |  |  |  |  | use_module
17 | 2 | 28µs | 2 | 43µs | ); # spent 37µs making 1 call to Class::Load::BEGIN@12 # spent 6µs making 1 call to UNIVERSAL::VERSION
18 | 2 | 717µs | 2 | 58µs | # spent 32µs (6+26) within Class::Load::BEGIN@18 which was called: # once (6µs+26µs) by App::Cmd::BEGIN@13 at line 18 use Try::Tiny; # spent 32µs making 1 call to Class::Load::BEGIN@18 # spent 26µs making 1 call to Exporter::import
19 |  |  |  |  |
20 |  |  |  |  | {
21 | 2 | 3µs | 1 | 22µs | my $loader = Module::Implementation::build_loader_sub( # spent 22µs making 1 call to Module::Implementation::build_loader_sub
22 |  |  |  |  | implementations => [ 'XS', 'PP' ],
23 |  |  |  |  | symbols => ['is_class_loaded'],
24 |  |  |  |  | );
25 |  |  |  |  |
26 | 1 | 3µs | 1 | 477µs | $loader->(); # spent 477µs making 1 call to Module::Implementation::__ANON__[Module/Implementation.pm:47]
27 |  |  |  |  | }
28 |  |  |  |  |
29 | 1 | 1µs |  |  | our @EXPORT_OK = qw/load_class load_optional_class try_load_class is_class_loaded load_first_existing_class/;
30 | 1 | 900ns |  |  | our %EXPORT_TAGS = (
31 |  |  |  |  | all => \@EXPORT_OK,
32 |  |  |  |  | );
33 |  |  |  |  |
34 | 1 | 100ns |  |  | our $ERROR;
35 |  |  |  |  |
36 |  |  |  |  | # spent 49.9ms (77µs+49.8) within Class::Load::load_class which was called 9 times, avg 5.55ms/call: # 3 times (39µs+47.4ms) by App::Cmd::_command at line 194 of App/Cmd.pm, avg 15.8ms/call # 3 times (26µs+2.42ms) by App::Cmd::_load_default_plugin at line 287 of App/Cmd.pm, avg 815µs/call # 3 times (12µs+-12µs) by App::Cmd::_setup_command at line 35 of App/Cmd.pm, avg 0s/call sub load_class {
37 | 9 | 4µs |  |  | my $class = shift;
38 | 9 | 4µs |  |  | my $options = shift;
39 |  |  |  |  |
40 | 9 | 50µs | 9 | 49.9ms | my ($res, $e) = try_load_class($class, $options); # spent 49.9ms making 9 calls to Class::Load::try_load_class, avg 5.55ms/call, recursion: max depth 1, sum of overlapping time 62µs
41 | 9 | 23µs |  |  | return $class if $res;
42 |  |  |  |  |
43 |  |  |  |  | _croak($e);
44 |  |  |  |  | }
45 |  |  |  |  |
46 |  |  |  |  | sub load_first_existing_class {
47 |  |  |  |  | my $classes = Data::OptList::mkopt(\@_)
48 |  |  |  |  | or return;
49 |  |  |  |  |
50 |  |  |  |  | foreach my $class (@{$classes}) {
51 |  |  |  |  | check_module_name($class->[0]);
52 |  |  |  |  | }
53 |  |  |  |  |
54 |  |  |  |  | for my $class (@{$classes}) {
55 |  |  |  |  | my ($name, $options) = @{$class};
56 |  |  |  |  |
57 |  |  |  |  | # We need to be careful not to pass an undef $options to this sub,
58 |  |  |  |  | # since the XS version will blow up if that happens.
59 |  |  |  |  | return $name if is_class_loaded($name, ($options ? $options : ()));
60 |  |  |  |  |
61 |  |  |  |  | my ($res, $e) = try_load_class($name, $options);
62 |  |  |  |  |
63 |  |  |  |  | return $name if $res;
64 |  |  |  |  |
65 |  |  |  |  | my $file = module_notional_filename($name);
66 |  |  |  |  |
67 |  |  |  |  | next if $e =~ /^Can't locate \Q$file\E in \@INC/;
68 |  |  |  |  | next
69 |  |  |  |  | if $options
70 |  |  |  |  | && defined $options->{-version}
71 |  |  |  |  | && $e =~ _version_fail_re($name, $options->{-version});
72 |  |  |  |  |
73 |  |  |  |  | _croak("Couldn't load class ($name) because: $e");
74 |  |  |  |  | }
75 |  |  |  |  |
76 |  |  |  |  | my @list = map {
77 |  |  |  |  | $_->[0]
78 |  |  |  |  | . ( $_->[1] && defined $_->[1]{-version}
79 |  |  |  |  | ? " (version >= $_->[1]{-version})"
80 |  |  |  |  | : q{} )
81 |  |  |  |  | } @{$classes};
82 |  |  |  |  |
83 |  |  |  |  | my $err
84 |  |  |  |  | .= q{Can't locate }
85 |  |  |  |  | . _or_list(@list)
86 |  |  |  |  | . " in \@INC (\@INC contains: @INC).";
87 |  |  |  |  | _croak($err);
88 |  |  |  |  | }
89 |  |  |  |  |
90 |  |  |  |  | sub _version_fail_re {
91 |  |  |  |  | my $name = shift;
92 |  |  |  |  | my $vers = shift;
93 |  |  |  |  |
94 |  |  |  |  | return qr/\Q$name\E version \Q$vers\E required--this is only version/;
95 |  |  |  |  | }
96 |  |  |  |  |
97 |  |  |  |  | # spent 37µs (12+25) within Class::Load::_nonexistent_fail_re which was called: # once (12µs+25µs) by Class::Load::load_optional_class at line 131 sub _nonexistent_fail_re {
98 | 1 | 300ns |  |  | my $name = shift;
99 |  |  |  |  |
100 | 1 | 800ns | 1 | 15µs | my $file = module_notional_filename($name); # spent 15µs making 1 call to Module::Runtime::module_notional_filename
101 | 1 | 19µs | 2 | 10µs | return qr/Can't locate \Q$file\E in \@INC/; # spent 7µs making 1 call to Class::Load::CORE:regcomp # spent 2µs making 1 call to Class::Load::CORE:qr
102 |  |  |  |  | }
103 |  |  |  |  |
104 |  |  |  |  | sub _or_list {
105 |  |  |  |  | return $_[0] if @_ == 1;
106 |  |  |  |  |
107 |  |  |  |  | return join ' or ', @_ if @_ ==2;
108 |  |  |  |  |
109 |  |  |  |  | my $last = pop;
110 |  |  |  |  |
111 |  |  |  |  | my $list = join ', ', @_;
112 |  |  |  |  | $list .= ', or ' . $last;
113 |  |  |  |  |
114 |  |  |  |  | return $list;
115 |  |  |  |  | }
116 |  |  |  |  |
117 |  |  |  |  | # spent 284µs (20+265) within Class::Load::load_optional_class which was called: # once (20µs+265µs) by App::Cmd::Setup::_make_app_class at line 111 of App/Cmd/Setup.pm sub load_optional_class {
118 | 1 | 500ns |  |  | my $class = shift;
119 | 1 | 300ns |  |  | my $options = shift;
120 |  |  |  |  |
121 | 1 | 2µs | 1 | 18µs | check_module_name($class); # spent 18µs making 1 call to Module::Runtime::check_module_name
122 |  |  |  |  |
123 | 1 | 7µs | 1 | 208µs | my ($res, $e) = try_load_class($class, $options); # spent 208µs making 1 call to Class::Load::try_load_class
124 | 1 | 200ns |  |  | return 1 if $res;
125 |  |  |  |  |
126 | 1 | 200ns |  |  | return 0
127 |  |  |  |  | if $options
128 |  |  |  |  | && defined $options->{-version}
129 |  |  |  |  | && $e =~ _version_fail_re($class, $options->{-version});
130 |  |  |  |  |
131 | 1 | 11µs | 3 | 39µs | return 0 # spent 37µs making 1 call to Class::Load::_nonexistent_fail_re # spent 1µs making 1 call to Class::Load::CORE:regcomp # spent 600ns making 1 call to Class::Load::CORE:match
132 |  |  |  |  | if $e =~ _nonexistent_fail_re($class);
133 |  |  |  |  |
134 |  |  |  |  | _croak($e);
135 |  |  |  |  | }
136 |  |  |  |  |
137 |  |  |  |  | # spent 50.1ms (155µs+49.9) within Class::Load::try_load_class which was called 10 times, avg 5.01ms/call: # 9 times (132µs+49.7ms) by Class::Load::load_class at line 40, avg 5.54ms/call # once (23µs+185µs) by Class::Load::load_optional_class at line 123 sub try_load_class {
138 | 10 | 2µs |  |  | my $class = shift;
139 | 10 | 3µs |  |  | my $options = shift;
140 |  |  |  |  |
141 | 10 | 11µs | 10 | 131µs | check_module_name($class); # spent 131µs making 10 calls to Module::Runtime::check_module_name, avg 13µs/call
142 |  |  |  |  |
143 | 10 | 3µs |  |  | local $@;
144 | 10 | 4µs |  |  | undef $ERROR;
145 |  |  |  |  |
146 | 10 | 49µs | 10 | 28µs | if (is_class_loaded($class)) { # spent 28µs making 10 calls to Class::Load::XS::is_class_loaded, avg 3µs/call
147 |  |  |  |  | # We need to check this here rather than in is_class_loaded() because
148 |  |  |  |  | # we want to return the error message for a failed version check, but
149 |  |  |  |  | # is_class_loaded just returns true/false.
150 | 3 | 8µs |  |  | return 1 unless $options && defined $options->{-version};
151 |  |  |  |  | return try {
152 |  |  |  |  | $class->VERSION($options->{-version});
153 |  |  |  |  | 1;
154 |  |  |  |  | }
155 |  |  |  |  | catch {
156 |  |  |  |  | _error($_);
157 |  |  |  |  | };
158 |  |  |  |  | }
159 |  |  |  |  |
160 | 7 | 11µs | 7 | 115µs | my $file = module_notional_filename($class); # spent 115µs making 7 calls to Module::Runtime::module_notional_filename, avg 16µs/call
161 |  |  |  |  | # This says "our diagnostics of the package
162 |  |  |  |  | # say perl's INC status about the file being loaded are
163 |  |  |  |  | # wrong", so we delete it from %INC, so when we call require(),
164 |  |  |  |  | # perl will *actually* try reloading the file.
165 |  |  |  |  | #
166 |  |  |  |  | # If the file is already in %INC, it won't retry,
167 |  |  |  |  | # And on 5.8, it won't fail either!
168 |  |  |  |  | #
169 |  |  |  |  | # The extra benefit of this trick, is it helps even on
170 |  |  |  |  | # 5.10, as instead of dying with "Compilation failed",
171 |  |  |  |  | # it will die with the actual error, and that's a win-win.
172 | 7 | 7µs |  |  | delete $INC{$file};
173 |  |  |  |  | return try {
174 | 7 | 16µs |  |  | local $SIG{__DIE__} = 'DEFAULT';
175 | 7 | 7µs |  |  | if ($options && defined $options->{-version}) {
176 |  |  |  |  | use_module($class, $options->{-version});
177 |  |  |  |  | }
178 |  |  |  |  | else {
179 | 7 | 10µs | 7 | 49.4ms | require_module($class); # spent 49.4ms making 7 calls to Module::Runtime::require_module, avg 7.06ms/call
180 |  |  |  |  | }
181 | 6 | 21µs |  |  | 1;
182 |  |  |  |  | }
183 |  |  |  |  | catch {
184 | 1 | 4µs | 1 | 12µs | _error($_); # spent 12µs making 1 call to Class::Load::_error
185 | 7 | 64µs | 14 | 49.7ms | }; # spent 49.7ms making 7 calls to Try::Tiny::try, avg 7.10ms/call # spent 29µs making 7 calls to Try::Tiny::catch, avg 4µs/call
186 |  |  |  |  | }
187 |  |  |  |  |
188 |  |  |  |  | # spent 12µs (8+4) within Class::Load::_error which was called: # once (8µs+4µs) by Class::Load::catch {...} at line 184 sub _error {
189 | 1 | 500ns |  |  | my $e = shift;
190 |  |  |  |  |
191 | 1 | 8µs | 1 | 4µs | $e =~ s/ at .+?Runtime\.pm line [0-9]+\.$//; # spent 4µs making 1 call to Class::Load::CORE:subst
192 | 1 | 700ns |  |  | chomp $e;
193 |  |  |  |  |
194 | 1 | 400ns |  |  | $ERROR = $e;
195 | 1 | 300ns |  |  | return 0 unless wantarray;
196 | 1 | 3µs |  |  | return 0, $ERROR;
197 |  |  |  |  | }
198 |  |  |  |  |
199 |  |  |  |  | sub _croak {
200 |  |  |  |  | require Carp;
201 |  |  |  |  | local $Carp::CarpLevel = $Carp::CarpLevel + 2;
202 |  |  |  |  | Carp::croak(shift);
203 |  |  |  |  | }
204 |  |  |  |  |
205 | 1 | 5µs |  |  | 1;
206 |  |  |  |  |
207 |  |  |  |  | # ABSTRACT: a working (require "Class::Name") and more
208 |  |  |  |  |
209 |  |  |  |  | __END__
|  |  |  |  | # spent 600ns within Class::Load::CORE:match which was called: # once (600ns+0s) by Class::Load::load_optional_class at line 131 sub Class::Load::CORE:match; # opcode
|  |  |  |  | # spent 2µs within Class::Load::CORE:qr which was called: # once (2µs+0s) by Class::Load::_nonexistent_fail_re at line 101 sub Class::Load::CORE:qr; # opcode
|  |  |  |  | # spent 8µs within Class::Load::CORE:regcomp which was called 2 times, avg 4µs/call: # once (7µs+0s) by Class::Load::_nonexistent_fail_re at line 101 # once (1µs+0s) by Class::Load::load_optional_class at line 131 sub Class::Load::CORE:regcomp; # opcode
|  |  |  |  | # spent 4µs within Class::Load::CORE:subst which was called: # once (4µs+0s) by Class::Load::_error at line 191 sub Class::Load::CORE:subst; # opcode