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dotfiles/.config/i3blocks/blocks/cpu_usage

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2016-03-31 02:06:44 +00:00
#!/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 = 50;
my $t_crit = 80;
my $cpu_usage = -1;
sub help {
print "Usage: cpu_usage [-w <warning>] [-c <critical>]\n";
print "-w <percent>: warning threshold to become yellow\n";
print "-c <percent>: critical threshold to become red\n";
exit 0;
}
GetOptions("help|h" => \&help,
"w=i" => \$t_warn,
"c=i" => \$t_crit);
# Get CPU usage
$ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is
open (MPSTAT, 'mpstat 1 1 |') or die 'Cannot run mpstat';
while (<MPSTAT>) {
if (/^.*\s+(\d+\.\d+)\s+$/) {
$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
printf "%.0f%%\n"x2, $cpu_usage;
# Print color, if needed
if ($cpu_usage >= $t_crit) {
print "#FF0000\n";
} elsif ($cpu_usage >= $t_warn) {
print "#FFCB00\n";
}
exit 0;