code: public function convertTimers(Sheep_Debug_Model_RequestInfo $request)
      {
          if (!$request->getTimers()) {
              return array();
          }
  
          $requestData = array();
          $requestData['id'] = $request->getToken();
          $requestData['left'] = 0;
          $requestData['events'] = array();
  
          $currentTime = 0;
          /**  timer is an array defined by @see Varien_Profiler */
          foreach ($request->getTimers() as $name => $timer) {
  
              if (!$timer['sum']) {
                  continue;
              }
  
              // convert seconds into microseconds
              $timer['sum'] *= 1000;
  
              $category = $this->getCategory($name);
  
              // we don't have start time, end time or multiple periods
              // so built an estimation of how this event might look assuming that we have only one
              // occurrence (period) and that it followed immediately after last event
              $requestData['events'][] = array(
                  'name'      => $name,
                  'category'  => $category,
                  'origin'    => 0,
                  'starttime' => $currentTime,
                  'endtime'   => $currentTime + $timer['sum'],
                  'duration'  => $timer['sum'],
                  'memory'    => round($timer['realmem'] / pow(2014, 2), 2),
                  'periods'   => array(
                      array('start' => $currentTime, 'end' => $currentTime + $timer['sum'])
                  )
              );
  
              // we assume certain events contain the other events (most of the time it makes sense)
              if ($category != self::SECTION) {
                  $currentTime += $timer['sum'];
              }
          }
  
          $data = array();
          $data['max'] = $currentTime;
          $data['requests'] = array($requestData);
  
          return $data;
      }
docs: Converts timers registered by Varien Profile into structure understood by Symfony
  
  @param Sheep_Debug_Model_RequestInfo $request
  @return array