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=head1 NAME |
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Sys::Statistics::Linux::LoadAVG - Collect linux load average statistics. |
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=head1 SYNOPSIS |
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use Sys::Statistics::Linux::LoadAVG; |
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my $lxs = Sys::Statistics::Linux::LoadAVG->new; |
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my $stat = $lxs->get; |
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=head1 DESCRIPTION |
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Sys::Statistics::Linux::LoadAVG gathers the load average from the virtual F filesystem (procfs). |
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For more information read the documentation of the front-end module L. |
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=head1 LOAD AVERAGE STATISTICS |
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Generated by F. |
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avg_1 - The average processor workload of the last minute. |
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avg_5 - The average processor workload of the last five minutes. |
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avg_15 - The average processor workload of the last fifteen minutes. |
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=head1 METHODS |
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=head2 new() |
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Call C to create a new object. |
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my $lxs = Sys::Statistics::Linux::LoadAVG->new; |
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It's possible to set the path to the proc filesystem. |
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Sys::Statistics::Linux::LoadAVG->new( |
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files => { |
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# This is the default |
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path => '/proc', |
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loadavg => 'loadavg', |
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} |
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); |
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=head2 get() |
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Call C to get the statistics. C returns the statistics as a hash reference. |
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my $stat = $lxs->get; |
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=head1 EXPORTS |
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No exports. |
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=head1 SEE ALSO |
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B |
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=head1 REPORTING BUGS |
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Please report all bugs to . |
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=head1 AUTHOR |
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Jonny Schulz . |
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=head1 COPYRIGHT |
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Copyright (c) 2006, 2007 by Jonny Schulz. All rights reserved. |
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This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. |
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=cut |
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package Sys::Statistics::Linux::LoadAVG; |
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use strict; |
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use warnings; |
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use Carp qw(croak); |
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our $VERSION = '0.08'; |
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sub new { |
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my $class = shift; |
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my $opts = ref($_[0]) ? shift : {@_}; |
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my %self = ( |
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files => { |
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path => '/proc', |
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loadavg => 'loadavg', |
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} |
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); |
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foreach my $file (keys %{ $opts->{files} }) { |
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$self{files}{$file} = $opts->{files}->{$file}; |
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} |
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return bless \%self, $class; |
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} |
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sub get { |
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my $self = shift; |
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my $class = ref $self; |
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my $file = $self->{files}; |
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my %lavg = (); |
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my $filename = $file->{path} ? "$file->{path}/$file->{loadavg}" : $file->{loadavg}; |
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open my $fh, '<', $filename or croak "$class: unable to open $filename ($!)"; |
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30
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( $lavg{avg_1} |
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, $lavg{avg_5} |
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, $lavg{avg_15} |
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) = (split /\s+/, <$fh>)[0..2]; |
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11
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close($fh); |
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6
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return \%lavg; |
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} |
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1; |