Profile of vars.pm

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For t/app_dpath.t
Run on Tue Jun 5 15:25:28 2012
Reported on Tue Jun 5 15:26:03 2012

Filename | /home/ss5/perl5/perlbrew/perls/perl-5.14.1/lib/5.14.1/vars.pm
Statements | Executed 212 statements in 4.10ms

Subroutines
Calls | P | F | Exclusive Time | Inclusive Time | Subroutine
--- | --- | --- | --- | --- | ---
12 | 12 | 12 | 1.90ms | 2.44ms | vars::::importvars::import
117 | 3 | 1 | 538µs | 538µs | vars::::CORE:matchvars::CORE:match (opcode)
1 | 1 | 1 | 72µs | 72µs | vars::::BEGIN@3vars::BEGIN@3
1 | 1 | 1 | 30µs | 480µs | vars::::BEGIN@7vars::BEGIN@7
1 | 1 | 1 | 25µs | 76µs | vars::::BEGIN@8vars::BEGIN@8

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

Line | State ments | Time on line | Calls | Time in subs | Code
--- | --- | --- | --- | --- | ---
1 |  |  |  |  | package vars;
2 |  |  |  |  |
3 | 2 | 230µs | 1 | 72µs | # spent 72µs within vars::BEGIN@3 which was called: # once (72µs+0s) by Config::BEGIN@11 at line 3 use 5.006; # spent 72µs making 1 call to vars::BEGIN@3
4 |  |  |  |  |
5 | 1 | 3µs |  |  | our $VERSION = '1.02';
6 |  |  |  |  |
7 | 2 | 107µs | 2 | 929µs | # spent 480µs (30+450) within vars::BEGIN@7 which was called: # once (30µs+450µs) by Config::BEGIN@11 at line 7 use warnings::register; # spent 480µs making 1 call to vars::BEGIN@7 # spent 450µs making 1 call to warnings::register::import
8 | 2 | 1.23ms | 2 | 126µs | # spent 76µs (25+51) within vars::BEGIN@8 which was called: # once (25µs+51µs) by Config::BEGIN@11 at line 8 use strict qw(vars subs); # spent 76µs making 1 call to vars::BEGIN@8 # spent 51µs making 1 call to strict::import
9 |  |  |  |  |
10 |  |  |  |  | # spent 2.44ms (1.90+538µs) within vars::import which was called 12 times, avg 203µs/call: # once (532µs+145µs) by YAML::Syck::BEGIN@5 at line 5 of YAML/Syck.pm # once (257µs+62µs) by File::Spec::Functions::BEGIN@6 at line 6 of File/Spec/Functions.pm # once (197µs+59µs) by Data::Structure::Util::BEGIN@7 at line 7 of Data/Structure/Util.pm # once (154µs+44µs) by Digest::MD5::BEGIN@4 at line 4 of Digest/MD5.pm # once (134µs+36µs) by Storable::BEGIN@22 at line 22 of Storable.pm # once (115µs+34µs) by File::Spec::BEGIN@4 at line 4 of File/Spec.pm # once (109µs+39µs) by constant::BEGIN@6 at line 6 of constant.pm # once (109µs+30µs) by Config::General::BEGIN@37 at line 37 of Config/General.pm # once (84µs+26µs) by Config::BEGIN@11 at line 11 of Config.pm # once (73µs+26µs) by base::BEGIN@4 at line 4 of base.pm # once (69µs+20µs) by Digest::base::BEGIN@4 at line 4 of Digest/base.pm # once (70µs+16µs) by File::Spec::Unix::BEGIN@4 at line 4 of File/Spec/Unix.pm sub import {
11 | 48 | 355µs |  |  | my $callpack = caller;
12 |  |  |  |  | my (undef, @imports) = @_;
13 |  |  |  |  | my ($sym, $ch);
14 |  |  |  |  | foreach (@imports) {
15 | 156 | 2.16ms | 39 | 360µs | if (($ch, $sym) = /^([\$\@\%\*\&])(.+)/) { # spent 360µs making 39 calls to vars::CORE:match, avg 9µs/call
16 |  |  | 39 | 92µs | if ($sym =~ /\W/) { # spent 92µs making 39 calls to vars::CORE:match, avg 2µs/call
17 |  |  |  |  | # time for a more-detailed check-up
18 |  |  |  |  | if ($sym =~ /^\w+[[{].*[]}]$/) {
19 |  |  |  |  | require Carp;
20 |  |  |  |  | Carp::croak("Can't declare individual elements of hash or array");
21 |  |  |  |  | } elsif (warnings::enabled() and length($sym) == 1 and $sym !~ tr/a-zA-Z//) {
22 |  |  |  |  | warnings::warn("No need to declare built-in vars");
23 |  |  |  |  | } elsif (($^H &= strict::bits('vars'))) {
24 |  |  |  |  | require Carp;
25 |  |  |  |  | Carp::croak("'$_' is not a valid variable name under strict vars");
26 |  |  |  |  | }
27 |  |  |  |  | }
28 |  |  | 39 | 87µs | $sym = "${callpack}::$sym" unless $sym =~ /::/; # spent 87µs making 39 calls to vars::CORE:match, avg 2µs/call
29 |  |  |  |  | *$sym =
30 |  |  |  |  | ( $ch eq "\$" ? \$$sym
31 |  |  |  |  | : $ch eq "\@" ? \@$sym
32 |  |  |  |  | : $ch eq "\%" ? \%$sym
33 |  |  |  |  | : $ch eq "\*" ? \*$sym
34 |  |  |  |  | : $ch eq "\&" ? \&$sym
35 |  |  |  |  | : do {
36 |  |  |  |  | require Carp;
37 |  |  |  |  | Carp::croak("'$_' is not a valid variable name");
38 |  |  |  |  | });
39 |  |  |  |  | } else {
40 |  |  |  |  | require Carp;
41 |  |  |  |  | Carp::croak("'$_' is not a valid variable name");
42 |  |  |  |  | }
43 |  |  |  |  | }
44 |  |  |  |  | };
45 |  |  |  |  |
46 | 1 | 11µs |  |  | 1;
47 |  |  |  |  | __END__
|  |  |  |  | # spent 538µs within vars::CORE:match which was called 117 times, avg 5µs/call: # 39 times (360µs+0s) by vars::import at line 15, avg 9µs/call # 39 times (92µs+0s) by vars::import at line 16, avg 2µs/call # 39 times (87µs+0s) by vars::import at line 28, avg 2µs/call sub vars::CORE:match; # opcode