protected function _parseProcStat($cpuline)
{
if (is_null($this->_cpu_loads)) {
$this->_cpu_loads = array();
if (CommonFunctions::rfts('/proc/stat', $buf)) {
if (preg_match_all('/^(cpu[0-9]*) (.*)/m', $buf, $matches, PREG_SET_ORDER)) {
foreach ($matches as $line) {
$cpu = $line[1];
$buf2 = $line[2];
$this->_cpu_loads[$cpu] = array();
$ab = 0;
$ac = 0;
$ad = 0;
$ae = 0;
sscanf($buf2, "%Ld %Ld %Ld %Ld", $ab, $ac, $ad, $ae);
$this->_cpu_loads[$cpu]['load'] = $ab + $ac + $ad;
// cpu.user + cpu.sys
$this->_cpu_loads[$cpu]['total'] = $ab + $ac + $ad + $ae;
// cpu.total
}
}
}
// we need a second value, wait 1 second befor getting (< 1 second no good value will occour)
if (PSI_LOAD_BAR) {
sleep(1);
}
if (CommonFunctions::rfts('/proc/stat', $buf)) {
if (preg_match_all('/^(cpu[0-9]*) (.*)/m', $buf, $matches, PREG_SET_ORDER)) {
foreach ($matches as $line) {
$cpu = $line[1];
$buf2 = $line[2];
$ab = 0;
$ac = 0;
$ad = 0;
$ae = 0;
sscanf($buf2, "%Ld %Ld %Ld %Ld", $ab, $ac, $ad, $ae);
$load2 = $ab + $ac + $ad;
// cpu.user + cpu.sys
$total2 = $ab + $ac + $ad + $ae;
// cpu.total
$total = $this->_cpu_loads[$cpu]['total'];
$load = $this->_cpu_loads[$cpu]['load'];
$this->_cpu_loads[$cpu] = 0;
if ($total > 0 && $total2 > 0 && $load > 0 && $load2 > 0 && $total2 != $total && $load2 != $load) {
$this->_cpu_loads[$cpu] = 100 * ($load2 - $load) / ($total2 - $total);
}
}
}
}
}
if (isset($this->_cpu_loads[$cpuline])) {
return $this->_cpu_loads[$cpuline];
}
return 0;
}
