ifcos-errors-performance

Use when processing large IFC files (100MB+) or optimizing slow IfcOpenShell scripts. Prevents the #1 performance mistake: calling create_shape() per element instead of using the geometry iterator for batch processing. Covers geometry iterator, by_type caching, batch patterns, memory management, multiprocessing strategies, and profiling. Keywords: performance, large IFC, geometry iterator, create_shape, batch processing, memory, multiprocessing, optimization, slow, 100MB, profiling, IFC file too large, takes too long, out of memory.

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