Monitoring::Plugin::Performance - class for handling Monitoring::Plugin performance data.

       This code is maintained by the Monitoring Plugin Development Team: see https://monitoring-plugins.org

       Monitoring::Plugin::Performance->new(%attributes)
           Instantiates a new Monitoring::Plugin::Performance object with the given attributes.

       Monitoring::Plugin::Performance->parse_perfstring($string)
           Returns  an array of Monitoring::Plugin::Performance objects based on the string entered. If there is
           an error parsing the string - which may consists of several sets of data -  will return an array with
           all the successfully parsed sets.

           If values are input with commas instead of periods, due to different locale settings,  then  it  will
           still be parsed, but the commas will be converted to periods.

       Copyright  (C)  2014       by Monitoring Plugin Team Copyright (C) 2006-2014 by Nagios Plugin Development
       Team

       This library is free software; you can redistribute it and/or modify it under  the  same  terms  as  Perl
       itself.

perl v5.26.2                                       2018-07-26               Monitoring::Plugin::Performance(3pm)

       Monitoring::Plugin class for handling performance data. This is a public interface because it could be
       used by performance graphing routines, such as nagiostat (http://nagiostat.sourceforge.net), perfparse
       (http://perfparse.sourceforge.net), nagiosgraph (http://nagiosgraph.sourceforge.net) or NagiosGrapher
       (http://www.nagiosexchange.org/NagiosGrapher.84.0.html).

       Monitoring::Plugin::Performance offers both a parsing interface (via parse_perfstring), for turning
       nagios performance output strings into their components, and a composition interface (via new), for
       turning components into perfdata strings.

       Monitoring::Plugin::Performance - class for handling Monitoring::Plugin performance data.

       label, value, uom, warning, critical, min, max
           These all return scalars. min and max are not well supported yet.

       threshold
           Returns  a  Monitoring::Plugin::Threshold  object  holding  the  warning and critical ranges for this
           performance data (if any).

       rrdlabel
           Returns a string based on 'label' that is suitable for use as dataset name  of  an  RRD  i.e.  munges
           label to be 1-19 characters long with only characters [a-zA-Z0-9_].

           This calls $self->clean_label and then truncates to 19 characters.

           There is no guarantee that multiple N:P:Performance objects will have unique rrdlabels.

       clean_label
           Returns  a  "clean"  label  for use as a dataset name in RRD, ie, it converts characters that are not
           [a-zA-Z0-9_] to _.

           It also converts "/" to "root" and "/{name}" to "{name}".

       perfoutput
           Outputs       the       data       in       Monitoring::Plugin       perfdata       format       i.e.
           label=value[uom];[warn];[crit];[min];[max].

       Monitoring::Plugin, Monitoring::Plugin::Threshold, https://www.monitoring-plugins.org/doc/guidelines.html

         use Monitoring::Plugin::Performance use_die => 1;

         # Constructor (also accepts a 'threshold' obj instead of warning/critical)
         $p = Monitoring::Plugin::Performance->new(
             label     => 'size',
             value     => $value,
             uom       => "kB",
             warning   => $warning,
             critical  => $critical,
             min       => $min,
             max       => $max,
         );

         # Parser
         @perf = Monitoring::Plugin::Performance->parse_perfstring(
             "/=382MB;15264;15269;; /var=218MB;9443;9448"
         )
         or warn("Failed to parse perfstring");

         # Accessors
         for $p (@perf) {
           printf "label:    %s\n",   $p->label;
           printf "value:    %s\n",   $p->value;
           printf "uom:      %s\n",   $p->uom;
           printf "warning:  %s\n",   $p->warning;
           printf "critical: %s\n",   $p->critical;
           printf "min:      %s\n",   $p->min;
           printf "max:      %s\n",   $p->max;
           # Special accessor returning a threshold obj containing warning/critical
           $threshold = $p->threshold;
         }

         # Perfdata output format i.e. label=value[uom];[warn];[crit];[min];[max]
         print $p->perfoutput;

       If you are using this module for the purposes of parsing perf data, you will probably want to set use_die
       => 1 at use time. This forces &Monitoring::Plugin::Functions::plugin_exit to call die() - rather than
       exit() - when an error occurs. This is then trappable by an eval. If you don't set use_die, then an error
       in these modules will cause your script to exit