this is a text                                                                                                                                                   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
               Web Browser                                                                                                                                                                                                         idle                                                                  Proc.                                                                Waiting                                                                                               
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
               Web User                                                                                                                                                                                                                                                                         Waiting                                                                                                                                                                           ok
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
                                                                                                                                                                                                       0                                                                                     200                                                300                                                                                                    500