ORT 1.24.3 release cherry pick round 3#27501
Merged
tianleiwu merged 2 commits intorel-1.24.3from Mar 2, 2026
Merged
Conversation
…() (#27295) Remove unnecessary s_kernel_registry_vitisaiep.reset() call in deinitialize_vitisai_ep() function. The kernel registry will be repopulated on next initialization, making this reset redundant.
…hains (#27391) ### Description Profiling shows that CheckIfSubtreesAreEqual is invoked recursively for many node pairs for LightGBM models with categorical features. A significant portion of this work consists of self-comparisons (left_id == right_id), leading to effectively O(n²) comparing trees to themselves during model loading. This change adds a fast-path for trivial equality, avoiding unnecessary recursive comparisons. Example results: - model with 7K BRANCH_EQ nodes: 527 ms → 47 ms (~11× faster) - model with 106K BRANCH_EQ nodes: 141 s → 80 ms (~1760× faster) ### Motivation and Context We have some LightGBM exported models that make heavy use of categorical features and exhibit extremely slow load times (minutes for a single 2.5mb model). Heres a diagram to illustrate the issue: <img width="1008" height="1229" alt="image" src="https://github.com/user-attachments/assets/348e16cb-9eec-448f-ac5c-e1edb60e2a3d" /> the 106K model has much longer "member of" chains, with chains that lead into more chains: <details> <summary>"trees"</summary> <img width="1405" height="593" alt="image" src="https://github.com/user-attachments/assets/12f0c43f-5987-4b33-9001-2a2b526e537f" /> </details> Interestingly we did also try using the new onnx.ml opset 5 node that has MEMBER, but it seems even slower as it recreates these branch EQ chains.
edgchen1
approved these changes
Mar 2, 2026
adrianlizarraga
approved these changes
Mar 2, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
5 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This cherry-picks the following commits for the release: