[WIP][Perf] Litellm prometheus improvements - #25934

Merged

ishaan-berri merged 8 commits into

litellm_internal_stagingfrom

litellm_prometheus_improvements

Apr 17, 2026

Commits on Apr 17, 2026

amortize label context call, by reducing number of label_factory calls, reduces CPU time by ~5%
harish-berri
committed
69f2bc1
removing pydantic base model __repr__, __repr_str__ and __repr_args__ function calls from the hotpath and replacing them with lightweight python native dataclasses.
harish-berri
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95824dd
Removed slots attr which was causing test failures in python 3.9.
harish-berri
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1eb6be9
added comments to disable repr
harish-berri
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62a189f
fixing backwards compatibility for tests
harish-berri
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5df3287
fix(prometheus): restore labeled-counter tests; tolerate UserAPIKeyLabelValues kwargs
harish-berri
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9d10ebf
resolve lint errors
harish-berri
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b3ccbb9
resolving code comments to move helper logic to ```prometheus_helper.py```
harish-berri
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8e77f9e