code: def process_cpu_line(self, words):
      
  
      values = {}
      for word in words[1:]:
        val, key = word.split('%')
        values['cpu_' + key.strip(',')] = val
      self.put_values_into_data(values)
docs: Process the line starting with "Cpu(s):"
      Example log: Cpu(s):  1.3%us,  0.5%sy,  0.0%ni, 98.2%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st