id summary reporter owner description type status priority milestone component version resolution keywords cc 4903 Memory leak? Andreas Nicolai Lennart Ochel "I attached a fairly simple model that uses the AixLib for simulating a simple heat pump operation. To run the model, within OMEdit: - load AixLib (either installed default lib version 0.5.2 or github version) - load all models in ""components"" subdirectory of archive - load HPStorage_System4.mo - run model (simulation time 1 year = 31536000 s, output steps 10 min = 600 s), use either colored jacobian (or numerical dense)... When running the attached model I notice two things: 1. performance is extremely low on Windows - model takes approx. 50 mins, OpenModelica on Linux (same machine) takes about 10 mins, whereas Dymola takes only 32 seconds... might be an indication that something is going wrong??? 2. during simulation the model continuously takes up memory starting with a few hundret Mb up to > 2 Gb of memory. That looks strange and may contribute to the performance problem. " defect new critical Backend v1.13.0-dev-nightly