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@jveldboom
Created October 30, 2014 20:51
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Combine sar system stats
<?php
/**
* sar documentation http://linux.die.net/man/1/sar
*/
class SystemStats
{
function __construct($sar)
{
$this->sar = $sar;
}
function run()
{
$return = array();
foreach($this->sar as $type => $opt)
{
$results = self::runCommand($opt['cmd']);
$return = self::formatValues($return,$results,$type,$opt['map']);
}
return json_encode($return);
}
function runCommand($cmd)
{
return shell_exec($cmd);
}
function formatValues($return,$results,$type,$map)
{
$bits = explode(" ",$results);
foreach($bits as $k => $v)
{
if(!isset($map[$k]) || !$map[$k]) continue;
$return[$type.'.'.$map[$k]] = trim($v);
}
return $return;
}
}
$sar = array(
'cpu' => array(
'cmd' => 'LC_TIME="en_US.UTF-8" sar -u | tail -n 2 | head -n 1 | awk \'{$1=$1}{print}\'',
'map' => array(false,false,'num','user','nice','system','iowait','steal','idle'),
),
'load' => array(
'cmd' => 'cat /proc/loadavg',
'map' => array('1min','5min','15min',false,false),
),
'mem' => array(
'cmd' => 'LC_TIME="en_US.UTF-8" sar -r | tail -n 2 | head -n 1 | awk \'{$1=$1}{print}\'',
'map' => array(false,false,'kbmemfree','kbmemused','memused','kbbuffers','kbcached','kbcommit','commit','kbactive','kbinact','kbdirty'),
),
'disk' => array(
'cmd' => 'LC_TIME="en_US.UTF-8" sar -b | tail -n 2 | head -n 1 | awk \'{$1=$1}{print}\'',
'map' => array(false,false,'tps','rtps','wtps','breads','bwrtns'),
),
'net' => array(
'cmd' => 'LC_TIME="en_US.UTF-8" sar -n DEV | grep eth0 | tail -n 2 | head -n 1 | awk \'{$1=$1}{print}\'',
'map' => array(false,false,'iface','rxpcks','txpcks','rxkbs','txkbs','rxcmps','txcmps','rxmcsts','ifutil'),
),
);
$n = new SystemStats($sar);
echo $n->run();
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