Profile of Exporter.pm

Filename	/usr/local/perls/perl-5.26.1/lib/5.26.1/Exporter.pm
Statements	Executed 1098 statements in 6.11ms

Subroutines
Calls	P	F	Exclusive Time	Inclusive Time	Subroutine
69	69	32	4.82ms	8.02ms	Exporter::::importExporter::import
635	2	1	340µs	340µs	Exporter::::CORE:matchExporter::CORE:match (opcode)
23	2	1	326µs	446µs	Exporter::::as_heavyExporter::as_heavy
116	2	1	154µs	154µs	Exporter::::CORE:substExporter::CORE:subst (opcode)
18	1	1	96µs	438µs	Exporter::::exportExporter::export
5	5	5	54µs	158µs	Exporter::::export_ok_tagsExporter::export_ok_tags
0	0	0	0s	0s	Exporter::::__ANON__[:64]Exporter::__ANON__[:64]
0	0	0	0s	0s	Exporter::::export_failExporter::export_fail
0	0	0	0s	0s	Exporter::::export_tagsExporter::export_tags
0	0	0	0s	0s	Exporter::::export_to_levelExporter::export_to_level
0	0	0	0s	0s	Exporter::::require_versionExporter::require_version

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

Line	State ments	Time on line	Calls	Time in subs	Code
1					package Exporter;
2
3					require 5.006;
4
5					# Be lean.
6					#use strict;
7					#no strict 'refs';
8
9					our $Debug = 0;
10					our $ExportLevel = 0;
11					our $Verbose \|\|= 0;
12					our $VERSION = '5.72';
13					our (%Cache);
14
15					# spent 446µs (326+120) within Exporter::as_heavy which was called 23 times, avg 19µs/call: # 18 times (251µs+91µs) by Exporter::export at line 25, avg 19µs/call # 5 times (75µs+29µs) by Exporter::export_ok_tags at line 89, avg 21µs/call sub as_heavy {
16	23	19µs			require Exporter::Heavy;
17					# Unfortunately, this does not work if the caller is aliased as *name = \&foo
18					# Thus the need to create a lot of identical subroutines
19	23	143µs			my $c = (caller(1))[3];
20	23	189µs	23	120µs	$c =~ s/.*:://; # spent 120µs making 23 calls to Exporter::CORE:subst, avg 5µs/call
21	23	135µs			\&{"Exporter::Heavy::heavy_$c"};
22					}
23
24					# spent 438µs (96+342) within Exporter::export which was called 18 times, avg 24µs/call: # 18 times (96µs+342µs) by Exporter::import at line 62, avg 24µs/call sub export {
25	18	152µs	36	2.73ms	goto &{as_heavy()}; # spent 2.39ms making 18 calls to Exporter::Heavy::heavy_export, avg 133µs/call # spent 342µs making 18 calls to Exporter::as_heavy, avg 19µs/call
26					}
27
28					# spent 8.02ms (4.82+3.20) within Exporter::import which was called 69 times, avg 116µs/call: # once (85µs+328µs) by IO::Compress::Adapter::Deflate::BEGIN@8 at line 8 of IO/Compress/Adapter/Deflate.pm # once (302µs+25µs) by Archive::Tar::BEGIN@19 at line 19 of Archive/Tar.pm # once (81µs+232µs) by Storable::BEGIN@59 at line 60 of Storable.pm # once (272µs+16µs) by Archive::Tar::File::BEGIN@12 at line 12 of Archive/Tar/File.pm # once (65µs+212µs) by File::Glob::import at line 46 of File/Glob.pm # once (48µs+225µs) by IO::Compress::Gzip::BEGIN@15 at line 15 of IO/Compress/Gzip.pm # once (57µs+203µs) by Compress::Zlib::BEGIN@464 at line 464 of Compress/Zlib.pm # once (54µs+200µs) by IO::Compress::Zlib::Extra::BEGIN@13 at line 13 of IO/Compress/Zlib/Extra.pm # once (232µs+17µs) by IO::Compress::RawDeflate::BEGIN@11 at line 11 of IO/Compress/RawDeflate.pm # once (51µs+193µs) by IO::Uncompress::Gunzip::BEGIN@16 at line 16 of IO/Uncompress/Gunzip.pm # once (209µs+15µs) by Compress::Zlib::BEGIN@11 at line 11 of Compress/Zlib.pm # once (40µs+180µs) by IO::Uncompress::Bunzip2::BEGIN@7 at line 7 of IO/Uncompress/Bunzip2.pm # once (74µs+145µs) by IO::Compress::RawDeflate::BEGIN@10 at line 10 of IO/Compress/RawDeflate.pm # once (203µs+11µs) by IO::Uncompress::Adapter::Bunzip2::BEGIN@9 at line 9 of IO/Uncompress/Adapter/Bunzip2.pm # once (200µs+11µs) by IO::Compress::Gzip::BEGIN@12 at line 12 of IO/Compress/Gzip.pm # once (188µs+16µs) by IO::Uncompress::RawInflate::BEGIN@8 at line 8 of IO/Uncompress/RawInflate.pm # once (175µs+7µs) by Archive::Tar::BEGIN@12 at line 12 of Archive/Tar.pm # once (29µs+129µs) by IO::Uncompress::Adapter::Inflate::BEGIN@7 at line 7 of IO/Uncompress/Adapter/Inflate.pm # once (149µs+8µs) by IO::Uncompress::Base::BEGIN@19 at line 19 of IO/Uncompress/Base.pm # once (27µs+128µs) by IO::Compress::Adapter::Bzip2::BEGIN@7 at line 7 of IO/Compress/Adapter/Bzip2.pm # once (20µs+134µs) by IO::Compress::Bzip2::BEGIN@54 at line 54 of IO/Compress/Bzip2.pm # once (144µs+9µs) by IO::Uncompress::Base::BEGIN@17 at line 17 of IO/Uncompress/Base.pm # once (142µs+8µs) by IO::Compress::Base::BEGIN@9 at line 9 of IO/Compress/Base.pm # once (130µs+9µs) by Compress::Zlib::BEGIN@10 at line 10 of Compress/Zlib.pm # once (126µs+11µs) by Archive::Tar::File::BEGIN@5 at line 5 of Archive/Tar/File.pm # once (25µs+112µs) by IO::Compress::Gzip::BEGIN@14 at line 14 of IO/Compress/Gzip.pm # once (20µs+116µs) by IO::Compress::RawDeflate::BEGIN@119 at line 119 of IO/Compress/RawDeflate.pm # once (24µs+108µs) by IO::Compress::Adapter::Deflate::BEGIN@7 at line 7 of IO/Compress/Adapter/Deflate.pm # once (26µs+105µs) by IO::Uncompress::Gunzip::BEGIN@15 at line 15 of IO/Uncompress/Gunzip.pm # once (21µs+104µs) by IO::Uncompress::Adapter::Bunzip2::BEGIN@7 at line 7 of IO/Uncompress/Adapter/Bunzip2.pm # once (18µs+107µs) by IO::Uncompress::RawInflate::BEGIN@9 at line 9 of IO/Uncompress/RawInflate.pm # once (103µs+6µs) by Archive::Tar::BEGIN@10 at line 10 of Archive/Tar.pm # once (102µs+5µs) by IO::Compress::Adapter::Bzip2::BEGIN@9 at line 9 of IO/Compress/Adapter/Bzip2.pm # once (78µs+6µs) by URI::WithBase::BEGIN@7 at line 7 of URI/WithBase.pm # once (68µs+5µs) by Compress::Zlib::BEGIN@6 at line 6 of Compress/Zlib.pm # once (62µs+3µs) by URI::file::BEGIN@9 at line 9 of URI/file.pm # once (58µs+2µs) by IO::Uncompress::Adapter::Inflate::BEGIN@8 at line 8 of IO/Uncompress/Adapter/Inflate.pm # once (55µs+5µs) by URI::URL::BEGIN@19 at line 19 of URI/URL.pm # once (55µs+3µs) by IO::Zlib::BEGIN@306 at line 306 of IO/Zlib.pm # once (56µs+2µs) by Tie::Handle::BEGIN@123 at line 123 of Tie/Handle.pm # once (51µs+2µs) by IO::Zlib::BEGIN@291 at line 291 of IO/Zlib.pm # once (47µs+4µs) by URI::file::Unix::BEGIN@8 at line 8 of URI/file/Unix.pm # once (43µs+5µs) by URI::_generic::BEGIN@8 at line 8 of URI/_generic.pm # once (45µs+3µs) by URI::_query::BEGIN@7 at line 7 of URI/_query.pm # once (47µs+1µs) by Digest::SHA::BEGIN@8 at line 8 of Digest/SHA.pm # once (45µs+2µs) by IO::Compress::Base::Common::BEGIN@523 at line 523 of IO/Compress/Base/Common.pm # once (43µs+4µs) by Compress::Raw::Zlib::BEGIN@6 at line 6 of Compress/Raw/Zlib.pm # once (43µs+2µs) by Compress::Raw::Bzip2::BEGIN@9 at line 9 of Compress/Raw/Bzip2.pm # once (43µs+0s) by IO::Compress::Bzip2::BEGIN@8 at line 8 of IO/Compress/Bzip2.pm # once (41µs+1000ns) by IO::Uncompress::Base::BEGIN@20 at line 20 of IO/Uncompress/Base.pm # once (38µs+3µs) by File::GlobMapper::BEGIN@5 at line 5 of File/GlobMapper.pm # once (34µs+3µs) by IO::Compress::Base::Common::BEGIN@7 at line 7 of IO/Compress/Base/Common.pm # once (34µs+2µs) by IO::Zlib::BEGIN@292 at line 292 of IO/Zlib.pm # once (35µs+1µs) by Archive::Tar::BEGIN@13 at line 13 of Archive/Tar.pm # once (31µs+2µs) by IO::Compress::Base::Common::BEGIN@8 at line 8 of IO/Compress/Base/Common.pm # once (29µs+3µs) by IO::Compress::RawDeflate::BEGIN@120 at line 120 of IO/Compress/RawDeflate.pm # once (29µs+2µs) by IO::Uncompress::Base::BEGIN@23 at line 23 of IO/Uncompress/Base.pm # once (29µs+0s) by IO::Compress::Base::BEGIN@914 at line 914 of IO/Compress/Base.pm # once (27µs+1µs) by Compress::Zlib::BEGIN@8 at line 8 of Compress/Zlib.pm # once (25µs+1000ns) by IO::Compress::RawDeflate::BEGIN@150 at line 150 of IO/Compress/RawDeflate.pm # once (25µs+0s) by IO::Uncompress::RawInflate::BEGIN@11 at line 11 of IO/Uncompress/RawInflate.pm # once (24µs+0s) by IO::Compress::RawDeflate::BEGIN@9 at line 9 of IO/Compress/RawDeflate.pm # once (24µs+0s) by Compress::Zlib::BEGIN@12 at line 12 of Compress/Zlib.pm # once (22µs+0s) by IO::Uncompress::Bunzip2::BEGIN@9 at line 9 of IO/Uncompress/Bunzip2.pm # once (22µs+0s) by URI::Escape::BEGIN@140 at line 140 of URI/Escape.pm # once (21µs+0s) by IO::Uncompress::Gunzip::BEGIN@12 at line 12 of IO/Uncompress/Gunzip.pm # once (19µs+0s) by Compress::Zlib::BEGIN@7 at line 7 of Compress/Zlib.pm # once (19µs+0s) by Compress::Zlib::BEGIN@13 at line 13 of Compress/Zlib.pm # once (9µs+0s) by URI::URL::BEGIN@13 at line 13 of URI/URL.pm sub import {
29	69	51µs			my $pkg = shift;
30	69	74µs			my $callpkg = caller($ExportLevel);
31
32	69	40µs			if ($pkg eq "Exporter" and @_ and $_[0] eq "import") {
33	2	13µs			*{$callpkg."::import"} = \&import;
34	2	13µs			return;
35					}
36
37					# We need to treat @{"$pkg\::EXPORT_FAIL"} since Carp uses it :-(
38	67	233µs			my $exports = \@{"$pkg\::EXPORT"};
39					# But, avoid creating things if they don't exist, which saves a couple of
40					# hundred bytes per package processed.
41	67	165µs			my $fail = ${$pkg . '::'}{EXPORT_FAIL} && \@{"$pkg\::EXPORT_FAIL"};
42	67	61µs			return export $pkg, $callpkg, @_
43					if $Verbose or $Debug or $fail && @$fail > 1;
44	67	104µs			my $export_cache = ($Cache{$pkg} \|\|= {});
45	67	178µs			my $args = @_ or @_ = @$exports;
46
47	67	20µs			if ($args and not %$export_cache) {
48					s/^&//, $export_cache->{$_} = 1
49	4	218µs	93	34µs	foreach (@$exports, @{"$pkg\::EXPORT_OK"}); # spent 34µs making 93 calls to Exporter::CORE:subst, avg 366ns/call
50					}
51	67	11µs			my $heavy;
52					# Try very hard not to use {} and hence have to enter scope on the foreach
53					# We bomb out of the loop with last as soon as heavy is set.
54	67	44µs			if ($args or $fail) {
55					($heavy = (/\W/ or $args and not exists $export_cache->{$_}
56					or $fail and @$fail and $_ eq $fail->[0])) and last
57	42	635µs	199	173µs	foreach (@_); # spent 173µs making 199 calls to Exporter::CORE:match, avg 869ns/call
58					} else {
59					($heavy = /\W/) and last
60	25	801µs	436	167µs	foreach (@_); # spent 167µs making 436 calls to Exporter::CORE:match, avg 383ns/call
61					}
62	67	138µs	18	438µs	return export $pkg, $callpkg, ($args ? @_ : ()) if $heavy; # spent 438µs making 18 calls to Exporter::export, avg 24µs/call
63					local $SIG{__WARN__} =
64	49	315µs			sub {require Carp; &Carp::carp} if not $SIG{__WARN__};
65					# shortcut for the common case of no type character
66	49	2.30ms			*{"$callpkg\::$_"} = \&{"$pkg\::$_"} foreach @_;
67					}
68
69					# Default methods
70
71					sub export_fail {
72					my $self = shift;
73					@_;
74					}
75
76					# Unfortunately, caller(1)[3] "does not work" if the caller is aliased as
77					# *name = \&foo. Thus the need to create a lot of identical subroutines
78					# Otherwise we could have aliased them to export().
79
80					sub export_to_level {
81					goto &{as_heavy()};
82					}
83
84					sub export_tags {
85					goto &{as_heavy()};
86					}
87
88					# spent 158µs (54+104) within Exporter::export_ok_tags which was called 5 times, avg 32µs/call: # once (21µs+19µs) by Archive::Tar::Constant::BEGIN@74 at line 24 of IO/Compress/Bzip2.pm # once (10µs+24µs) by IO::Uncompress::Gunzip::BEGIN@12 at line 25 of IO/Uncompress/RawInflate.pm # once (12µs+22µs) by IO::Compress::Gzip::BEGIN@11 at line 43 of IO/Compress/RawDeflate.pm # once (6µs+20µs) by Compress::Zlib::BEGIN@12 at line 36 of IO/Compress/Gzip.pm # once (5µs+19µs) by Compress::Zlib::BEGIN@13 at line 27 of IO/Uncompress/Gunzip.pm sub export_ok_tags {
89	5	60µs	10	247µs	goto &{as_heavy()}; # spent 143µs making 5 calls to Exporter::Heavy::heavy_export_ok_tags, avg 29µs/call # spent 104µs making 5 calls to Exporter::as_heavy, avg 21µs/call
90					}
91
92					sub require_version {
93					goto &{as_heavy()};
94					}
95
96					1;
97					__END__

					# spent 340µs within Exporter::CORE:match which was called 635 times, avg 535ns/call: # 436 times (167µs+0s) by Exporter::import at line 60, avg 383ns/call # 199 times (173µs+0s) by Exporter::import at line 57, avg 869ns/call sub Exporter::CORE:match; # opcode
					# spent 154µs within Exporter::CORE:subst which was called 116 times, avg 1µs/call: # 93 times (34µs+0s) by Exporter::import at line 49, avg 366ns/call # 23 times (120µs+0s) by Exporter::as_heavy at line 20, avg 5µs/call sub Exporter::CORE:subst; # opcode