if (!empty($wgRequestTime) && !empty($wgRUstart)) {
$this->mWorkStack[] = array( '-total', 0, $wgRequestTime,$this->getCpuTime($wgRUstart));
if (!empty($wgRequestTime) && !empty($wgRUstart)) {
$this->mWorkStack[] = array( '-total', 0, $wgRequestTime,$this->getCpuTime($wgRUstart));