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60 lines
1.6 KiB
60 lines
1.6 KiB
#!/usr/bin/perl |
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# |
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# Copyright 2014 Pierre Mavro <deimos@deimos.fr> |
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# Copyright 2014 Vivien Didelot <vivien@didelot.org> |
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# Copyright 2014 Andreas Guldstrand <andreas.guldstrand@gmail.com> |
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# |
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# Licensed under the terms of the GNU GPL v3, or any later version. |
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use strict; |
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use warnings; |
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use utf8; |
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use Getopt::Long; |
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# default values |
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my $t_warn = $ENV{T_WARN} || 50; |
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my $t_crit = $ENV{T_CRIT} || 80; |
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my $cpu_usage = -1; |
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my $decimals = $ENV{DECIMALS} || 2; |
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my $label = $ENV{label} || ""; |
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sub help { |
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print "Usage: cpu_usage [-w <warning>] [-c <critical>] [-d <decimals>]\n"; |
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print "-w <percent>: warning threshold to become yellow\n"; |
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print "-c <percent>: critical threshold to become red\n"; |
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print "-d <decimals>: Use <decimals> decimals for percentage (default is $decimals) \n"; |
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exit 0; |
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} |
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GetOptions("help|h" => \&help, |
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"w=i" => \$t_warn, |
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"c=i" => \$t_crit, |
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"d=i" => \$decimals, |
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); |
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# Get CPU usage |
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$ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is |
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open (MPSTAT, 'mpstat 1 1 |') or die; |
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while (<MPSTAT>) { |
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if (/^.*\s+(\d+\.\d+)[\s\x00]?$/) { |
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$cpu_usage = 100 - $1; # 100% - %idle |
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last; |
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} |
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} |
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close(MPSTAT); |
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$cpu_usage eq -1 and die 'Can\'t find CPU information'; |
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# Print short_text, full_text |
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printf "${label} %.${decimals}f%%\n", $cpu_usage; |
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printf "${label} %.${decimals}f%%\n", $cpu_usage; |
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# Print color, if needed |
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if ($cpu_usage >= $t_crit) { |
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print "#FF0000\n"; |
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exit 33; |
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} elsif ($cpu_usage >= $t_warn) { |
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print "#FFFC00\n"; |
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} |
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exit 0;
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