fix: trim_messages breaks when token_counter is a per-message c...#35669
Closed
Zakir Jiwani (JiwaniZakir) wants to merge 1 commit into
Closed
fix: trim_messages breaks when token_counter is a per-message c...#35669Zakir Jiwani (JiwaniZakir) wants to merge 1 commit into
trim_messages breaks when token_counter is a per-message c...#35669Zakir Jiwani (JiwaniZakir) wants to merge 1 commit into
CodSpeed HQ / CodSpeed Performance Analysis
failed
Mar 8, 2026
Performance Regression: -28.81%
⚠️ 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.
❌ 13 regressed benchmarks
⏩ 23 skipped benchmarks1
⚠️ Please fix the performance issues or acknowledge them on CodSpeed.
Performance Changes
| Mode | Benchmark | BASE |
HEAD |
Efficiency | |
|---|---|---|---|---|---|
| ❌ | WallTime | test_import_time[RunnableLambda] |
439.3 ms | 528.7 ms | -16.91% |
| ❌ | WallTime | test_import_time[PydanticOutputParser] |
475.2 ms | 581.9 ms | -18.34% |
| ❌ | WallTime | test_async_callbacks_in_sync |
18.6 ms | 26.1 ms | -28.81% |
| ❌ | WallTime | test_import_time[InMemoryVectorStore] |
550.3 ms | 651.7 ms | -15.55% |
| ❌ | WallTime | test_import_time[CallbackManager] |
284.9 ms | 337.5 ms | -15.6% |
| ❌ | WallTime | test_import_time[HumanMessage] |
239.9 ms | 280.3 ms | -14.42% |
| ❌ | WallTime | test_import_time[Runnable] |
448.4 ms | 524.4 ms | -14.49% |
| ❌ | WallTime | test_import_time[tool] |
484.6 ms | 589.1 ms | -17.75% |
| ❌ | WallTime | test_import_time[ChatPromptTemplate] |
563.1 ms | 680.2 ms | -17.21% |
| ❌ | WallTime | test_import_time[LangChainTracer] |
409.5 ms | 490.8 ms | -16.55% |
| ❌ | WallTime | test_import_time[BaseChatModel] |
481.4 ms | 567 ms | -15.1% |
| ❌ | WallTime | test_import_time[InMemoryRateLimiter] |
156.3 ms | 183.6 ms | -14.85% |
| ❌ | WallTime | test_import_time[Document] |
170.8 ms | 198.5 ms | -13.95% |
Comparing JiwaniZakir:fix/issue-35629 (ee3d55b) with master (fbfe4b8)
Footnotes
-
23 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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