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package PCP::LogSummary;
use strict;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK);
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(new metric_instance);
@EXPORT_OK = qw( );
$VERSION = '1.01';
sub new
{
my ( $self, $archive, $metricsref, $start, $finish ) = @_;
my $opts = '-F -N -z -biImMy -p6';
my @metrica = @{$metricsref};
my $metrics = ' ';
my %results;
foreach my $m (@metrica) { $metrics .= $m . ' '; }
if (defined($start)) { $opts .= " -S'$start'"; }
if (defined($finish)) { $opts .= " -T'$finish'"; }
open SUMMARY, "pmlogsummary $opts $archive $metrics |"
|| die "pmlogsummary: $!\n";
# metric,[inst],stocavg,timeavg,minimum,mintime,maximum,maxtime,count,units
LINE: while (<SUMMARY>) {
# print "Input line: $_\n";
m/^(\S.+),(.*),(\S+),(\S+),(\S+),(.+),(\S+),(.+),(\S+),(.*)$/
|| next LINE;
# If counter metric doesn't cover 90% of archive, metric name
# is preceded by an asterix. Chop this off and set a flag.
my $metric = $1;
$metric =~ s/^\*//;
my $asterix = ($metric ne $1);
my %result;
$result{'average'} = $3;
$result{'timeavg'} = $4;
$result{'minimum'} = $5;
$result{'mintime'} = $6;
$result{'maximum'} = $7;
$result{'maxtime'} = $8;
$result{'samples'} = $9;
$result{'units'} = $10;
$result{'ninety%'} = $asterix;
my $key = $1;
if ($2 ne "") { $key .= $2; }
$results{$key} = \%result;
# print "key=", $key, " average=$3\n";
}
close SUMMARY;
return \%results;
}
sub metric_instance
{
my ( $metric, $instance ) = @_;
return "$metric\[\"$instance\"\]";
}
1;
__END__
=head1 NAME
PCP::LogSummary - Perl interface for pmlogsummary(1)
=head1 SYNOPSIS
use PCP::LogSummary;
my $summary = new PCP::LogSummary($log, \@metrics, $start, $end);
=head1 DESCRIPTION
The PCP::LogSummary module is a wrapper around the Performance Co-Pilot
pmlogsummary(1) command.
Its primary purpose is to automate the production of post-processed
pmlogsummary data, in particular to automate the step where the
summarised data is imported into a spreadsheet for further anaylsis.
This has proven to often be an iterative process - done manually it
involves much cutting+pasting, and can be a significant time waster.
=head2 EXPORT
new
metric_instance
=head1 SEE ALSO
pmlogsummary(1).
The PCP mailing list pcp@mail.performancecopilot.org can be used for
questions about this module.
Further details can be found at http://www.performancecopilot.org
=head1 AUTHOR
Nathan Scott, E<lt>nathans@debian.orgE<gt>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2008 by Aconex
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2 (see
the "COPYING" file in the PCP source tree for further details).
=cut
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