One file from the GEOBIM 2019 benchmark is very interesting to use and benchmark speed on import:
Uptown.ifc filesize : 240 mB
More information about the backgrounds of this file : UpTown IFC model
" Note: The use of semantic entities is not perfect. For Example, many IfcBuildingElementProxy describe elements having well-defined semantics in IFC (e.g. stairs) and many attributes are missing, but we will evaluate the consistency of the model with itself through the conversions."
BIM viewers
IFCviewer (user timed, roughly):
17 min.
Video
FZKviewer, Karlsruher Institut fur Technologie (logfile, minutes rounded)
Time for preparing data: 7 min, time reading and parsing IFC: 9 min
Drive
Autodesk Navisworks Simulate 2021
Aborted after 2.5 hours at 12.5%
BIM authoring software
Blender : no results yet, gave up after +40 minutes)
Allplan : two hours
BricsCAD BIM DWG : 6 minutes.
AutoCAD IFC importers : ruling that posibility out, no chance this file will ever get in.
Revit release 2019
parameter log
ArchiCAD