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@mdrxy mdrxy commented Dec 23, 2025

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@mdrxy mdrxy requested a review from eyurtsev as a code owner December 23, 2025 00:42
@github-actions github-actions bot added core `langchain-core` package issues & PRs dependencies Pull requests that update a dependency file (e.g. `pyproject.toml` or `uv.lock`) release PRs made to release a package labels Dec 23, 2025
@mdrxy mdrxy merged commit 6dc06da into v0.3 Dec 23, 2025
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@mdrxy mdrxy deleted the mdrxy/release-core-0-3-81 branch December 23, 2025 00:42
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codspeed-hq bot commented Dec 23, 2025

CodSpeed Performance Report

Merging #34459 will improve performance by 38.46%

Comparing mdrxy/release-core-0-3-81 (352d5ca) with master (75b07b3)1

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

⚡ 12 improvements
✅ 1 untouched
⏩ 21 skipped2

Benchmarks breakdown

Mode Benchmark BASE HEAD Efficiency
WallTime test_async_callbacks_in_sync 24.4 ms 19.8 ms +23.05%
WallTime test_import_time[RunnableLambda] 540.6 ms 448.3 ms +20.59%
WallTime test_import_time[PydanticOutputParser] 582.7 ms 500.7 ms +16.39%
WallTime test_import_time[InMemoryRateLimiter] 186 ms 155.1 ms +19.89%
WallTime test_import_time[tool] 555.8 ms 477 ms +16.51%
WallTime test_import_time[LangChainTracer] 480 ms 399.8 ms +20.07%
WallTime test_import_time[Runnable] 533.9 ms 452.8 ms +17.89%
WallTime test_import_time[CallbackManager] 482 ms 417.1 ms +15.58%
WallTime test_import_time[InMemoryVectorStore] 660.5 ms 561.7 ms +17.59%
WallTime test_import_time[BaseChatModel] 574.2 ms 497.2 ms +15.5%
WallTime test_import_time[ChatPromptTemplate] 646.1 ms 566.1 ms +14.12%
WallTime test_import_time[HumanMessage] 273.9 ms 197.8 ms +38.46%

Footnotes

  1. No successful run was found on v0.3 (d9ec4c5) during the generation of this report, so master (75b07b3) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.

  2. 21 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports.

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