Aras Pranckevicius
092732d113
Previously, when creating "very large" (tens-hundreds of thousands) amounts of objects, the Blender code that was ensuring name uniqueness was the bottleneck. That got recently addressed (D14162), however now sorting of IDs by their names is the remaining bottleneck. Name sorting code in Blender is optimized for the pattern where names are inserted in already sorted order (i.e. objects expect to get added near the end of the list). By doing this pre-sorting of objects intended to get created by an importer (USD and OBJ, in this patch), this sorting bottleneck can be largely removed, especially with very high object counts. Windows, Ryzen 5950X, import times: - OBJ, splash screen scene (26k objects): 22.0s -> 20.7s - USD, Disney Moana scene (250k objects): 585s -> 82.2s (10 minutes -> 1.5 minutes) Reviewed By: Michael Kowalski, Howard Trickey Differential Revision: https://developer.blender.org/D15506