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#!/usr/bin/perl
#
# Copyright 2014 Pierre Mavro <deimos@deimos.fr>
# Copyright 2014 Vivien Didelot <vivien@didelot.org>
# Copyright 2014 Andreas Guldstrand <andreas.guldstrand@gmail.com>
#
# Licensed under the terms of the GNU GPL v3, or any later version.
use strict;
use warnings;
use utf8;
use Getopt::Long;
# default values
my $t_warn = $ENV{T_WARN} // 70; # default 50
my $t_crit = $ENV{T_CRIT} // 90; # default 80
my $cpu_usage = -1;
my $decimals = $ENV{DECIMALS} // 2;
my $label = $ENV{LABEL} // "";
sub help {
print "Usage: cpu_usage [-w <warning>] [-c <critical>] [-d <decimals>]\n";
print "-w <percent>: warning threshold to become yellow\n";
print "-c <percent>: critical threshold to become red\n";
print "-d <decimals>: Use <decimals> decimals for percentage (default is $decimals) \n";
exit 0;
}
GetOptions("help|h" => \&help,
"w=i" => \$t_warn,
"c=i" => \$t_crit,
"d=i" => \$decimals,
);
# Get CPU usage
$ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is
open (MPSTAT, 'mpstat |') or die;
while (<MPSTAT>) {
if (/^.*\s+(\d+\.\d+)[\s\x00]?$/) {
$cpu_usage = 100 - $1; # 100% - %idle
last;
}
}
close(MPSTAT);
$cpu_usage eq -1 and die 'Can\'t find CPU information';
# Print short_text, full_text
print "${label}";
printf "%.${decimals}f%%\n", $cpu_usage;
# print "\n";
# # Print color, if needed
# if ($cpu_usage >= $t_crit) {
# print "$ENV{BLOCK_COLOR_LEVEL5}\n";
# exit 33;
# } elsif ($cpu_usage >= $t_warn) {
# print "$ENV{BLOCK_COLOR_LEVEL4}\n";
# } elsif ($cpu_usage >= 50) {
# print "$ENV{BLOCK_COLOR_LEVEL3}\n";
# } elsif ($cpu_usage >= 20) {
# print "$ENV{BLOCK_COLOR_LEVEL2}\n";
# } else {
# print "$ENV{BLOCK_COLOR_LEVEL1}\n";
# }
exit 0;
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