id summary reporter owner description type status priority milestone component version resolution keywords cc 3625 Extremly long compilation time Christian Kral Adrian Pop "When I use a Modelica library that reads input parameters from an external data file and writes other data to an external data file, sometimes unusual long compilation times occur. The external data a read by means of a C function. Data writing is with Modelica.Utilities. Please compare the compilation times by the attached two examples (load KeyWordIO first) * TestKeyWordIO.RLOn (approx. 1 second) * TestKeyWordIO.RLOn_io (approx. 20 seconds) Note that the model complexity of both models is equal; the only difference are the reading and writing of data files in the second example. In other examples the compilation time goes up to several minutes ! " task closed high 1.13.0 Frontend fixed Adrian Pop Per Östlund