- Wait < WS_SERVER/IMAGES > MTX_READ (
                                       ú
                                       ú
                                       ú

                                       - Wait < WS_SERVER/IMAGES > MTX_WRITE (
                                                                               ú
                                                                               ú
                                                                               ú

                                                                               - Wait < WS_WEB_CACHE/IMAGES > MTX_WRITE (
                                                                                                                          ...
                                                                                                                        )
                                                                             )
                                     )
