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⚡ Bolt: optimize get_tensor type check for PySafeSlice #7716

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⚡ Bolt: optimize get_tensor type check for PySafeSlice #7716

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3 changes: 3 additions & 0 deletions .jules/bolt.md
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## 2025-05-18 - FastDeploy get_tensor PySafeSlice parsing
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@PaddlePaddle-bot PaddlePaddle-bot May 3, 2026

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🟡 建议 .jules/ 目录是 Jules AI bot 自动生成的内部学习笔记，建议将其加入 .gitignore 而非提交到生产仓库。

随着 Jules 后续 PR 的合入，此文件会持续累积条目，对 FastDeploy 仓库来说是无关噪声。建议在根目录 .gitignore 添加 .jules/。

**Learning:** Checking for `PySafeSlice` by calling `str(type(input))` and looking for a substring (`"PySafeSlice" in str(type(input))`) creates unneeded string formatting overhead in the extremely hot path of `get_tensor` logic since it's frequently called across weight loading and other utils.
**Action:** Replace `str(type(input))` with `type(input).__name__ == "PySafeSlice"` to speed it up.
4 changes: 3 additions & 1 deletion fastdeploy/model_executor/layers/utils.py
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Expand Up @@ -332,7 +332,9 @@ def get_tensor(input: Union[paddle.Tensor, np.ndarray, str], model_path=None) ->
paddle.Tensor: Returns a PaddlePaddle tensor.

"""
if "PySafeSlice" in str(type(input)):
# Optimize type checking: type(input).__name__ avoids the overhead of converting
# the type object to a string for substring matching.
if type(input).__name__ == "PySafeSlice":
input = input.get()

if isinstance(input, paddle.Tensor):
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