Lazy-import heavy modules for faster startup#219
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oxysoft wants to merge 1 commit intoGourieff:mainfrom
Open
Lazy-import heavy modules for faster startup#219oxysoft wants to merge 1 commit intoGourieff:mainfrom
oxysoft wants to merge 1 commit intoGourieff:mainfrom
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Move torchvision, insightface, scipy, cv2, segment_anything, ultralytics, and onnxruntime imports from module top-level into function bodies. This defers loading until actual use, reducing import time from ~7.6s to ~0.04s during ComfyUI startup.
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Summary
torchvision,insightface,scipy,cv2,segment_anything,ultralytics, andonnxruntimeimports from module top-level into function bodiesDetails
ComfyUI imports all custom nodes at startup to discover
NODE_CLASS_MAPPINGS. The current top-level imports pull in torchvision (~3.7s), insightface + albumentations (~2.0s), and scipy (~1.75s) even before any node is used.By moving these imports into the methods that actually need them, the node classes register instantly and libraries only load when a user first queues a workflow that uses ReActor.
14 files modified. No functional changes — just import relocation.
Test plan
python -X importtimeor similar