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Add lambda expressions - #9702

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mk/lambda-expressions
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Add lambda expressions#9702
mhk197 wants to merge 1 commit into
mk/variable-expressionsfrom
mk/lambda-expressions

Add lambda expressions

d8e744f
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CodSpeed HQ / CodSpeed Performance Analysis failed Aug 31, 2026 in 0s

Performance Regression: -4.63%

⚠️ 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.

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 1 improved benchmark
❌ 2 regressed benchmarks
✅ 2087 untouched benchmarks
⏩ 206 skipped benchmarks1
🗄️ 4 archived benchmarks run2

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
WallTime arrow_checked_add_u32_avx512[16384] 17.6 µs 21.3 µs -17.17%
Simulation cold_misaligned[(16, 64)] 344.2 µs 396 µs -13.07%
WallTime arrow_checked_add_u32_avx2[16384] 21.3 µs 17.7 µs +20.48%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.


Comparing mk/lambda-expressions (d8e744f) with mk/variable-expressions (91f7aa1)

Open in CodSpeed

Footnotes

  1. 206 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.

  2. 4 benchmarks were run, but are now archived. If they were deleted in another branch, consider rebasing to remove them from the report. Instead if they were added back, click here to restore them.