fix: cache modulate_index tensor to eliminate per-step DtoH sync#13404

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gsevprasad:fix/qwenimage-modulate-index-caching

Commits on Apr 3, 2026

fix: cache modulate_index in QwenImageTransformer2DModel to avoid per-step DtoH sync
gsevprasad
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Update src/diffusers/models/transformers/transformer_qwenimage.py

gsevprasad
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Copilot
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add: micro-benchmark script for modulate_index caching fix
gsevprasad
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