public function traceEnd(): void
    {
        $now = microtime(true);
        foreach ($this->buffTrace as &$traceItem) {
            if ('' === $traceItem['result']) {
                $traceItem['time'] = $now - $traceItem['time'];
                $traceItem['result'] = 'Trace end';
            }
        }
        unset($traceItem);
    }