Hi there, I have a strange problem with the "move_base" module: The CPU load is always 100 % (on a Quad Core Machine !) Is this normal ? I can lower the control_loop_rate, but there is no difference at all in the runtime. When I lower the update rate of the local_costmap to 2Hz i get 60% load... I used the settings that are proposed in the "navigation tutorial", so nothing special.. I also get strange Warning like: "Map update loop missed its desired rate of 0.5000Hz" for the global_costmap (6000x6000, 0.005m per pixel) and the global_costmap never publish anything (using rviz) The robot moves also very strange, i.e. stop-and-go behaviour, and seem to follow the path with a delay of 2sec !! I assume it is the global map that consumes the computational power, but as far i understand it is only updated once (at the start) Thanks for help in advance.. Sven -- Sven Olufs, M.Sc Research Fellow ACIN | AUTOMATION& CONTROL INSTITUTE INSTITUT FÜR AUTOMATISIERUNGS-& REGELUNGSTECHNIK TECHNISCHE UNIVERSITÄT WIEN Gußhausstraße 27-29 | 376. 1040 Wien Tel. +43 (0)1 58801 - 37666 Fax. +43 (0)1 58801 - 37698 olufs@acin.tuwien.ac.at | www.acin.tuwien.ac.at