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Execute tensor L2 norm with RowFn - #9768

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Execute tensor L2 norm with RowFn#9768
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Execute tensor L2 norm with RowFn

c11ae04
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CodSpeed HQ / CodSpeed Performance Analysis failed Sep 10, 2026 in 0s

8 benchmarks regressed

⚠️ 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

⚡ 7 improved benchmarks
❌ 8 regressed benchmarks
✅ 2182 untouched benchmarks
⏩ 218 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation column_x_extension_constant[32] 170.4 µs 233.6 µs -27.08%
Simulation column_x_extension_constant[256] 414.5 µs 562.3 µs -26.29%
Simulation column_x_column[256] 88.4 µs 112.7 µs -21.51%
Simulation column_x_column[32] 93.9 µs 117.4 µs -19.98%
Simulation random_i16[0.95] 77.3 µs 95.7 µs -19.22%
Simulation column_x_constant[256] 591.1 µs 710.5 µs -16.8%
Simulation column_x_constant[32] 392.7 µs 447.5 µs -12.23%
Simulation column_x_extension_constant[2] 247.4 µs 275.9 µs -10.34%
WallTime arrow_checked_add_u32_neon[16384] 20.4 µs 12.3 µs +66.43%
Simulation nullable[2] 630 µs 416.3 µs +51.32%
Simulation non_nullable[2] 630.4 µs 418.4 µs +50.68%
Simulation random_i8[0.5] 91.3 µs 67.9 µs +34.48%
Simulation allocate_drop_arrow[0] 456.9 ns 402.7 ns +13.45%
WallTime mul_u32_nonnull_avx512 6.3 µs 5.6 µs +12.16%
Simulation allocate_drop_bytes[0] 575.7 ns 521.6 ns +10.39%

Tip

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


Comparing ct/row-fn-tensor-l2-v2 (c11ae04) with develop (35cd01f)2

Open in CodSpeed

Footnotes

  1. 218 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. No successful run was found on develop (c93f5a9) during the generation of this report, so 35cd01f was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.