← Index
NYTProf Performance Profile   « line view »
For examples/Atom-timer.pl
  Run on Mon Aug 12 14:45:28 2013
Reported on Mon Aug 12 14:46:14 2013

Filename/Users/dde/perl5/perlbrew/perls/5.18.0t/lib/5.18.0/vars.pm
StatementsExecuted 96 statements in 681µs
Subroutines
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
111178µs244µsvars::::BEGIN@7vars::BEGIN@7
666165µs201µsvars::::importvars::import
483135µs35µsvars::::CORE:matchvars::CORE:match (opcode)
11113µs13µsvars::::BEGIN@3vars::BEGIN@3
1115µs14µsvars::::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
1package vars;
2
3247µs113µs
# spent 13µs within vars::BEGIN@3 which was called: # once (13µs+0s) by Config::BEGIN@11 at line 3
use 5.006;
# spent 13µs making 1 call to vars::BEGIN@3
4
51400nsour $VERSION = '1.03';
6
72192µs2310µs
# spent 244µs (178+66) within vars::BEGIN@7 which was called: # once (178µs+66µs) by Config::BEGIN@11 at line 7
use warnings::register;
# spent 244µs making 1 call to vars::BEGIN@7 # spent 66µs making 1 call to warnings::register::import
82242µs223µs
# spent 14µs (5+9) within vars::BEGIN@8 which was called: # once (5µs+9µs) by Config::BEGIN@11 at line 8
use strict qw(vars subs);
# spent 14µs making 1 call to vars::BEGIN@8 # spent 9µs making 1 call to strict::import
9
10
# spent 201µs (165+35) within vars::import which was called 6 times, avg 33µs/call: # once (38µs+8µs) by List::MoreUtils::BEGIN@8 at line 8 of List/MoreUtils.pm # once (35µs+8µs) by Params::Util::BEGIN@65 at line 65 of Params/Util.pm # once (31µs+7µs) by Storable::BEGIN@22 at line 22 of Storable.pm # once (27µs+5µs) by Config::BEGIN@11 at line 11 of Config.pm # once (22µs+5µs) by constant::BEGIN@6 at line 6 of constant.pm # once (12µs+3µs) by base::BEGIN@4 at line 4 of base.pm
sub import {
1163µs my $callpack = caller;
1267µs my (undef, @imports) = @_;
136700ns my ($sym, $ch);
14620µs foreach (@imports) {
151677µs1626µs if (($ch, $sym) = /^([\$\@\%\*\&])(.+)/) {
# spent 26µs making 16 calls to vars::CORE:match, avg 2µs/call
161622µs165µs if ($sym =~ /\W/) {
# spent 5µs making 16 calls to vars::CORE:match, avg 331ns/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 }
281626µs164µs $sym = "${callpack}::$sym" unless $sym =~ /::/;
# spent 4µs making 16 calls to vars::CORE:match, avg 231ns/call
29 *$sym =
30 ( $ch eq "\$" ? \$$sym
31 : $ch eq "\@" ? \@$sym
32 : $ch eq "\%" ? \%$sym
33 : $ch eq "\*" ? \*$sym
34 : $ch eq "\&" ? \&$sym
351639µs : 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
4612µs1;
47__END__
 
# spent 35µs within vars::CORE:match which was called 48 times, avg 733ns/call: # 16 times (26µs+0s) by vars::import at line 15, avg 2µs/call # 16 times (5µs+0s) by vars::import at line 16, avg 331ns/call # 16 times (4µs+0s) by vars::import at line 28, avg 231ns/call
sub vars::CORE:match; # opcode