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For split.pl
  Run on Thu Apr 20 02:05:47 2023
Reported on Thu Apr 20 18:31:09 2023

Filename/usr/lib/x86_64-linux-gnu/perl-base/constant.pm
StatementsExecuted 4132515 statements in 19.8s
Subroutines
Calls P F Exclusive
Time		 Inclusive
Time		 Subroutine
41312581523.55s3.55sconstant::::__ANON__[:192]constant::__ANON__[:192]
414111586µs746µsconstant::::importconstant::import
411148µs48µsconstant::::CORE:matchconstant::CORE:match (opcode)
411144µs44µsconstant::::CORE:substconstant::CORE:subst (opcode)
411134µs34µsconstant::::CORE:regcompconstant::CORE:regcomp (opcode)
11111µs11µsconstant::::BEGIN@2constant::BEGIN@2
1118µs9µsconstant::::BEGIN@24constant::BEGIN@24
1115µs10µsconstant::::BEGIN@40constant::BEGIN@40
1114µs22µsconstant::::BEGIN@4constant::BEGIN@4
1114µs7µsconstant::::BEGIN@141constant::BEGIN@141
1114µs7µsconstant::::BEGIN@90constant::BEGIN@90
1114µs7µsconstant::::BEGIN@65constant::BEGIN@65
1114µs5µsconstant::::BEGIN@3constant::BEGIN@3
3313µs3µsconstant::::CORE:qrconstant::CORE:qr (opcode)
521700ns700nsconstant::::_make_constconstant::_make_const (xsub)
0000s0sconstant::::__ANON__[:174]constant::__ANON__[:174]
0000s0sconstant::::__ANON__[:190]constant::__ANON__[:190]
0000s0sconstant::::__ANON__[:41]constant::__ANON__[:41]
0000s0sconstant::::__ANON__[:42]constant::__ANON__[:42]
0000s0sconstant::::__ANON__[:43]constant::__ANON__[:43]
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments		 Time
on line		 Calls Time
in subs		 Code
1package constant;
2230µs111µs
# spent 11µs within constant::BEGIN@2 which was called: # once (11µs+0s) by File::Spec::Unix::BEGIN@115 at line 2
use 5.008;
# spent 11µs making 1 call to constant::BEGIN@2
3215µs26µs
# spent 5µs (4+1) within constant::BEGIN@3 which was called: # once (4µs+1µs) by File::Spec::Unix::BEGIN@115 at line 3
use strict;
# spent 5µs making 1 call to constant::BEGIN@3 # spent 1µs making 1 call to strict::import
42221µs240µs
# spent 22µs (4+18) within constant::BEGIN@4 which was called: # once (4µs+18µs) by File::Spec::Unix::BEGIN@115 at line 4
use warnings::register;
# spent 22µs making 1 call to constant::BEGIN@4 # spent 18µs making 1 call to warnings::register::import
5
61300nsour $VERSION = '1.33';
7our %declared;
8
9#=======================================================================
10
11# Some names are evil choices.
1214µsmy %keywords = map +($_, 1), qw{ BEGIN INIT CHECK END DESTROY AUTOLOAD };
1311µs$keywords{UNITCHECK}++ if $] > 5.009;
14
1513µsmy %forced_into_main = map +($_, 1),
16 qw{ STDIN STDOUT STDERR ARGV ARGVOUT ENV INC SIG };
17
1813µsmy %forbidden = (%keywords, %forced_into_main);
19
2016µs12µsmy $normal_constant_name = qr/^_?[^\W_0-9]\w*\z/;
# spent 2µs making 1 call to constant::CORE:qr
2112µs1400nsmy $tolerable = qr/^[A-Za-z_]\w*\z/;
# spent 400ns making 1 call to constant::CORE:qr
2211µs1300nsmy $boolean = qr/^[01]?\z/;
# spent 300ns making 1 call to constant::CORE:qr
23
24
# spent 9µs (8+500ns) within constant::BEGIN@24 which was called: # once (8µs+500ns) by File::Spec::Unix::BEGIN@115 at line 45
BEGIN {
25 # We'd like to do use constant _CAN_PCS => $] > 5.009002
26 # but that's a bit tricky before we load the constant module :-)
27 # By doing this, we save several run time checks for *every* call
28 # to import.
291300ns my $const = $] > 5.009002;
301100ns my $downgrade = $] < 5.015004; # && $] >= 5.008
311400ns my $constarray = exists &_make_const;
3211µs if ($const) {
3314µs1400ns Internals::SvREADONLY($const, 1);
# spent 400ns making 1 call to Internals::SvREADONLY
3411µs1100ns Internals::SvREADONLY($downgrade, 1);
# spent 100ns making 1 call to Internals::SvREADONLY
351500ns $constant::{_CAN_PCS} = \$const;
361300ns $constant::{_DOWNGRADE} = \$downgrade;
371400ns $constant::{_CAN_PCS_FOR_ARRAY} = \$constarray;
38 }
39 else {
40260µs215µs
# spent 10µs (5+5) within constant::BEGIN@40 which was called: # once (5µs+5µs) by File::Spec::Unix::BEGIN@115 at line 40
no strict 'refs';
# spent 10µs making 1 call to constant::BEGIN@40 # spent 5µs making 1 call to strict::unimport
41 *{"_CAN_PCS"} = sub () {$const};
42 *{"_DOWNGRADE"} = sub () { $downgrade };
43 *{"_CAN_PCS_FOR_ARRAY"} = sub () { $constarray };
44 }
45144µs19µs}
# spent 9µs making 1 call to constant::BEGIN@24
46
47#=======================================================================
48# import() - import symbols into user's namespace
49#
50# What we actually do is define a function in the caller's namespace
51# which returns the value. The function we create will normally
52# be inlined as a constant, thereby avoiding further sub calling
53# overhead.
54#=======================================================================
55
# spent 746µs (586+160) within constant::import which was called 41 times, avg 18µs/call: # once (25µs+10µs) by YAML::XS::BEGIN@108 at line 125 of YAML/XS.pm # once (25µs+8µs) by Module::Load::Conditional::BEGIN@16 at line 16 of Module/Load/Conditional.pm # once (24µs+7µs) by Getopt::Long::BEGIN@220 at line 220 of Getopt/Long.pm # once (21µs+9µs) by File::Spec::Unix::BEGIN@115 at line 115 of File/Spec/Unix.pm # once (22µs+8µs) by File::Temp::BEGIN@216 at line 216 of File/Temp.pm # once (22µs+7µs) by Encode::BEGIN@7 at line 7 of Encode.pm # once (22µs+7µs) by IPC::Cmd::BEGIN@7 at line 7 of IPC/Cmd.pm # once (23µs+6µs) by Encode::Encoding::BEGIN@14 at line 14 of Encode/Encoding.pm # once (20µs+6µs) by Encode::Alias::BEGIN@5 at line 5 of Encode/Alias.pm # once (18µs+5µs) by IPC::Run::BEGIN@1066 at line 1066 of IPC/Run.pm # once (18µs+5µs) by IPC::Open3::BEGIN@73 at line 73 of IPC/Open3.pm # once (18µs+3µs) by IPC::Cmd::BEGIN@12 at line 12 of IPC/Cmd.pm # once (16µs+3µs) by IPC::Open3::BEGIN@74 at line 74 of IPC/Open3.pm # once (15µs+4µs) by File::Spec::Unix::BEGIN@209 at line 209 of File/Spec/Unix.pm # once (14µs+2µs) by Getopt::Long::BEGIN@234 at line 234 of Getopt/Long.pm # once (13µs+4µs) by File::Spec::Unix::BEGIN@124 at line 124 of File/Spec/Unix.pm # once (13µs+4µs) by File::Spec::Unix::BEGIN@231 at line 231 of File/Spec/Unix.pm # once (13µs+3µs) by Getopt::Long::BEGIN@230 at line 230 of Getopt/Long.pm # once (13µs+3µs) by Module::Load::Conditional::BEGIN@17 at line 17 of Module/Load/Conditional.pm # once (13µs+3µs) by File::Temp::BEGIN@219 at line 219 of File/Temp.pm # once (12µs+3µs) by IPC::Cmd::BEGIN@8 at line 8 of IPC/Cmd.pm # once (12µs+3µs) by File::Spec::Unix::BEGIN@133 at line 133 of File/Spec/Unix.pm # once (11µs+3µs) by Module::Load::Conditional::BEGIN@18 at line 18 of Module/Load/Conditional.pm # once (11µs+3µs) by Getopt::Long::BEGIN@232 at line 232 of Getopt/Long.pm # once (11µs+3µs) by File::Temp::BEGIN@223 at line 223 of File/Temp.pm # once (11µs+2µs) by IPC::Cmd::BEGIN@13 at line 13 of IPC/Cmd.pm # once (11µs+2µs) by IPC::Cmd::BEGIN@10 at line 10 of IPC/Cmd.pm # once (11µs+2µs) by File::Temp::BEGIN@227 at line 227 of File/Temp.pm # once (11µs+2µs) by Getopt::Long::BEGIN@259 at line 259 of Getopt/Long.pm # once (11µs+2µs) by File::Temp::BEGIN@229 at line 229 of File/Temp.pm # once (11µs+2µs) by IPC::Cmd::BEGIN@11 at line 11 of IPC/Cmd.pm # once (10µs+2µs) by Getopt::Long::BEGIN@249 at line 249 of Getopt/Long.pm # once (10µs+3µs) by IPC::Cmd::BEGIN@9 at line 9 of IPC/Cmd.pm # once (10µs+2µs) by Getopt::Long::BEGIN@238 at line 238 of Getopt/Long.pm # once (10µs+2µs) by Getopt::Long::BEGIN@248 at line 248 of Getopt/Long.pm # once (10µs+2µs) by Getopt::Long::BEGIN@240 at line 240 of Getopt/Long.pm # once (10µs+2µs) by File::Temp::BEGIN@228 at line 228 of File/Temp.pm # once (10µs+2µs) by Getopt::Long::BEGIN@237 at line 237 of Getopt/Long.pm # once (10µs+2µs) by Getopt::Long::BEGIN@241 at line 241 of Getopt/Long.pm # once (9µs+2µs) by Getopt::Long::BEGIN@235 at line 235 of Getopt/Long.pm # once (9µs+2µs) by Getopt::Long::BEGIN@236 at line 236 of Getopt/Long.pm
sub import {
56418µs my $class = shift;
57419µs return unless @_; # Ignore 'use constant;'
58413µs my $constants;
594111µs my $multiple = ref $_[0];
604112µs my $caller = caller;
61415µs my $flush_mro;
62 my $symtab;
63
64418µs if (_CAN_PCS) {
65291µs210µs
# spent 7µs (4+3) within constant::BEGIN@65 which was called: # once (4µs+3µs) by File::Spec::Unix::BEGIN@115 at line 65
no strict 'refs';
# spent 7µs making 1 call to constant::BEGIN@65 # spent 3µs making 1 call to strict::unimport
664124µs $symtab = \%{$caller . '::'};
67 };
68
69417µs if ( $multiple ) {
70 if (ref $_[0] ne 'HASH') {
71 require Carp;
72 Carp::croak("Invalid reference type '".ref(shift)."' not 'HASH'");
73 }
74 $constants = shift;
75 } else {
76416µs unless (defined $_[0]) {
77 require Carp;
78 Carp::croak("Can't use undef as constant name");
79 }
804124µs $constants->{+shift} = undef;
81 }
82
834127µs foreach my $name ( keys %$constants ) {
84413µs my $pkg;
85415µs my $symtab = $symtab;
86414µs my $orig_name = $name;
8741105µs4144µs if ($name =~ s/(.*)(?:::|')(?=.)//s) {
# spent 44µs making 41 calls to constant::CORE:subst, avg 1µs/call
88 $pkg = $1;
89 if (_CAN_PCS && $pkg ne $caller) {
902116µs29µs
# spent 7µs (4+2) within constant::BEGIN@90 which was called: # once (4µs+2µs) by File::Spec::Unix::BEGIN@115 at line 90
no strict 'refs';
# spent 7µs making 1 call to constant::BEGIN@90 # spent 2µs making 1 call to strict::unimport
91 $symtab = \%{$pkg . '::'};
92 }
93 }
94 else {
95414µs $pkg = $caller;
96 }
97
98 # Normal constant name
9941162µs8282µs if ($name =~ $normal_constant_name and !$forbidden{$name}) {
# spent 48µs making 41 calls to constant::CORE:match, avg 1µs/call # spent 34µs making 41 calls to constant::CORE:regcomp, avg 832ns/call
100 # Everything is okay
101
102 # Name forced into main, but we're not in main. Fatal.
103 } elsif ($forced_into_main{$name} and $pkg ne 'main') {
104 require Carp;
105 Carp::croak("Constant name '$name' is forced into main::");
106
107 # Starts with double underscore. Fatal.
108 } elsif ($name =~ /^__/) {
109 require Carp;
110 Carp::croak("Constant name '$name' begins with '__'");
111
112 # Maybe the name is tolerable
113 } elsif ($name =~ $tolerable) {
114 # Then we'll warn only if you've asked for warnings
115 if (warnings::enabled()) {
116 if ($keywords{$name}) {
117 warnings::warn("Constant name '$name' is a Perl keyword");
118 } elsif ($forced_into_main{$name}) {
119 warnings::warn("Constant name '$name' is " .
120 "forced into package main::");
121 }
122 }
123
124 # Looks like a boolean
125 # use constant FRED == fred;
126 } elsif ($name =~ $boolean) {
127 require Carp;
128 if (@_) {
129 Carp::croak("Constant name '$name' is invalid");
130 } else {
131 Carp::croak("Constant name looks like boolean value");
132 }
133
134 } else {
135 # Must have bad characters
136 require Carp;
137 Carp::croak("Constant name '$name' has invalid characters");
138 }
139
140 {
14143273µs29µs
# spent 7µs (4+2) within constant::BEGIN@141 which was called: # once (4µs+2µs) by File::Spec::Unix::BEGIN@115 at line 141
no strict 'refs';
# spent 7µs making 1 call to constant::BEGIN@141 # spent 2µs making 1 call to strict::unimport
142419µs my $full_name = "${pkg}::$name";
1434128µs $declared{$full_name}++;
1444117µs if ($multiple || @_ == 1) {
145399µs my $scalar = $multiple ? $constants->{$orig_name} : $_[0];
146
147 if (_DOWNGRADE) { # for 5.8 to 5.14
148 # Work around perl bug #31991: Sub names (actually glob
149 # names in general) ignore the UTF8 flag. So we have to
150 # turn it off to get the "right" symbol table entry.
151 utf8::is_utf8 $name and utf8::encode $name;
152 }
153
154 # The constant serves to optimise this entire block out on
155 # 5.8 and earlier.
156396µs if (_CAN_PCS) {
157 # Use a reference as a proxy for a constant subroutine.
158 # If this is not a glob yet, it saves space. If it is
159 # a glob, we must still create it this way to get the
160 # right internal flags set, as constants are distinct
161 # from subroutines created with sub(){...}.
162 # The check in Perl_ck_rvconst knows that inlinable
163 # constants from cv_const_sv are read only. So we have to:
1643955µs3916µs Internals::SvREADONLY($scalar, 1);
# spent 16µs making 39 calls to Internals::SvREADONLY, avg 413ns/call
1653915µs if (!exists $symtab->{$name}) {
1663915µs $symtab->{$name} = \$scalar;
1673912µs ++$flush_mro->{$pkg};
168 }
169 else {
170 local $constant::{_dummy} = \$scalar;
171 *$full_name = \&{"_dummy"};
172 }
173 } else {
174 *$full_name = sub () { $scalar };
175 }
176 } elsif (@_) {
1771700ns my @list = @_;
1781300ns if (_CAN_PCS_FOR_ARRAY) {
17916µs4600ns _make_const($list[$_]) for 0..$#list;
# spent 600ns making 4 calls to constant::_make_const, avg 150ns/call
18011µs1100ns _make_const(@list);
# spent 100ns making 1 call to constant::_make_const
1811500ns if (!exists $symtab->{$name}) {
1821500ns $symtab->{$name} = \@list;
1831300ns $flush_mro->{$pkg}++;
184 }
185 else {
186 local $constant::{_dummy} = \@list;
187 *$full_name = \&{"_dummy"};
188 }
189 }
190 else { *$full_name = sub () { @list }; }
191 } else {
192413125919.8s
# spent 3.55s within constant::__ANON__[/usr/lib/x86_64-linux-gnu/perl-base/constant.pm:192] which was called 4131258 times, avg 860ns/call: # 1868195 times (1.29s+0s) by IPC::Run::reap_nb at line 3450 of IPC/Run.pm, avg 692ns/call # 666621 times (293ms+0s) by IPC::Run::_select_loop at line 3095 of IPC/Run.pm, avg 440ns/call # 532144 times (1.45s+0s) by IPC::Run::_close at line 1276 of IPC/Run.pm, avg 3µs/call # 133036 times (117ms+0s) by IPC::Run::harness at line 1804 of IPC/Run.pm, avg 878ns/call # 133036 times (100ms+0s) by IPC::Run::start at line 2900 of IPC/Run.pm, avg 753ns/call # 133036 times (71.9ms+0s) by IPC::Run::IO::_new_internal at line 131 of IPC/Run/IO.pm, avg 540ns/call # 133036 times (52.0ms+0s) by IPC::Run::start at line 2849 of IPC/Run.pm, avg 391ns/call # 133036 times (51.0ms+0s) by IPC::Run::_pipe_nb at line 1400 of IPC/Run.pm, avg 383ns/call # 133036 times (47.0ms+0s) by IPC::Run::start at line 2815 of IPC/Run.pm, avg 353ns/call # 133036 times (42.7ms+0s) by IPC::Run::_search_path at line 1170 of IPC/Run.pm, avg 321ns/call # 133036 times (30.4ms+0s) by IPC::Run::_search_path at line 1177 of IPC/Run.pm, avg 228ns/call # 7 times (4µs+0s) by IPC::Run::_search_path at line 1223 of IPC/Run.pm, avg 643ns/call # once (1µs+0s) by IPC::Run::IO::BEGIN@76 at line 78 of IPC/Run/IO.pm # once (700ns+0s) by IPC::Run::BEGIN@1068 at line 1069 of IPC/Run.pm # once (200ns+0s) by IPC::Run::_search_path at line 1211 of IPC/Run.pm
*$full_name = sub () { };
193 }
194 }
195 }
196 # Flush the cache exactly once if we make any direct symbol table changes.
1974187µs if (_CAN_PCS && $flush_mro) {
1984073µs4018µs mro::method_changed_in($_) for keys %$flush_mro;
# spent 18µs making 40 calls to mro::method_changed_in, avg 437ns/call
199 }
200}
201
20217µs1;
203
204__END__
 
# spent 48µs within constant::CORE:match which was called 41 times, avg 1µs/call: # 41 times (48µs+0s) by constant::import at line 99, avg 1µs/call
sub constant::CORE:match; # opcode
# spent 3µs within constant::CORE:qr which was called 3 times, avg 867ns/call: # once (2µs+0s) by File::Spec::Unix::BEGIN@115 at line 20 # once (400ns+0s) by File::Spec::Unix::BEGIN@115 at line 21 # once (300ns+0s) by File::Spec::Unix::BEGIN@115 at line 22
sub constant::CORE:qr; # opcode
# spent 34µs within constant::CORE:regcomp which was called 41 times, avg 832ns/call: # 41 times (34µs+0s) by constant::import at line 99, avg 832ns/call
sub constant::CORE:regcomp; # opcode
# spent 44µs within constant::CORE:subst which was called 41 times, avg 1µs/call: # 41 times (44µs+0s) by constant::import at line 87, avg 1µs/call
sub constant::CORE:subst; # opcode
# spent 700ns within constant::_make_const which was called 5 times, avg 140ns/call: # 4 times (600ns+0s) by constant::import at line 179, avg 150ns/call # once (100ns+0s) by constant::import at line 180
sub constant::_make_const; # xsub
Report produced by the NYTProf 6.12 Perl profiler, developed by Tim Bunce based on work by Adam Kaplan and Salvador Fandiño García.