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contrib-munin/plugins/cpu/multicpu

73 lines
2.1 KiB
PHP
Executable File

#!/usr/bin/php
<?php
/*
multicpu monitors the cpu usage of multiple processes.
you can configure the list of processes via munin's configuration
[multicpu]
env.ps_filter apache2 mysqld
I have very little knowledge about munin plugins, it just 'works fine for me'.
Please feel free to improve :)
0.1 initial release - Florian Fida
*/
// make sure that paht to ps is valid for your system
$ps_cmd = '/bin/ps -eo "%C,%a"';
// list of processes to monitor, can also be set by env.ps_filter in munin config
$ps_filter = array(
'apache2', 'mysqld', 'exim', 'php', 'perl', 'ruby', 'bftpd'
);
$cmdl = implode(' ', $argv);
$config = stripos($cmdl, 'config') !== false;
if(!empty($_ENV['ps_filter'])){
$ps_filter = explode(' ', $_ENV['ps_filter']);
}
if($config){
$out = "multigraph multicpu_pcpu\n";
$out .= "graph_title CPU usage per process\n";
$out .= "graph_vlabel CPU usage [%]\n";
$out .= "graph_category processes\n";
foreach($ps_filter as $process) $out .= "$process.label $process\n";
$out .= "multigraph multicpu_cnt\n";
$out .= "graph_title Instances per process\n";
$out .= "graph_vlabel count\n";
$out .= "graph_category processes\n";
foreach($ps_filter as $process) $out .= "$process.label $process\n";
echo $out."\n";
exit;
}
$ps_txt = shell_exec($ps_cmd);
$ps_a = explode("\n", $ps_txt);
$result = array();
$result_cnt = array();
foreach($ps_filter as $process){
if(!isset($result[$process])) $result[$process] = 0;
if(!isset($result_cnt[$process])) $result_cnt[$process] = 0;
foreach($ps_a as $line){
$line_a = explode(',', $line, 2);
if(count($line_a) == 2){
if(stripos($line_a[1], $process) !== false){
$result[$process] += floatval($line_a[0]);
++$result_cnt[$process];
}
}
}
}
echo "multigraph multicpu_pcpu\n";
foreach($result as $process => $value) echo "$process.value $value\n";
echo "multigraph multicpu_cnt\n";
foreach($result_cnt as $process => $value) echo "$process.value $value\n";