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Canonicalize chunked nested types through the builder [builders-child-stack] - #8967

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CodSpeed / CodSpeed Performance Analysis failed Oct 2, 2026

2 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

⚡ 28 improved benchmarks
❌ 2 regressed benchmarks
✅ 2067 untouched benchmarks
🆕 10 new benchmarks
⏩ 503 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
❌ Simulation take[value_shape/duplicate99/struct8/nonnull/chunks=16/indices=100] 169.1 µs 200 µs -15.44%
❌ WallTime dict_canonicalize_gt_u8_neon[1000000] 487.9 µs 561.2 µs -13.06%
⚡ Simulation canonicalize[1024, 32] 52.5 µs 36.4 µs +44.24%
⚡ Simulation canonicalize[256, 32] 52.6 µs 36.5 µs +44.17%
⚡ Simulation chunked_opt_bool_into_canonical[(10, 100)] 277.7 µs 199 µs +39.56%
⚡ Simulation canonicalize[1024, 8] 38 µs 28.2 µs +34.85%
⚡ Simulation canonicalize[256, 8] 37.9 µs 28.2 µs +34.73%
⚡ Simulation canonicalize[16, 8] 38 µs 28.2 µs +34.66%
⚡ Simulation canonicalize[16, 32] 66.4 µs 50.5 µs +31.69%
⚡ Simulation canonicalize[256, 2] 35.3 µs 26.9 µs +31.02%
⚡ Simulation canonicalize[1024, 2] 35.2 µs 26.9 µs +30.82%
⚡ Simulation chunked_varbinview_into_canonical[(10, 100)] 367.6 µs 295.3 µs +24.52%
⚡ Simulation chunked_opt_bool_into_canonical[(100, 50)] 248.3 µs 202.2 µs +22.8%
⚡ Simulation canonicalize[16, 2] 44.6 µs 37.3 µs +19.77%
⚡ Simulation chunked_varbin_into_canonical[(10, 100)] 428.2 µs 358 µs +19.6%
⚡ Simulation chunked_varbinview_opt_into_canonical[(10, 100)] 553.8 µs 474.7 µs +16.66%
⚡ Simulation chunked_opt_bool_into_canonical[(1000, 10)] 101 µs 86.9 µs +16.22%
⚡ Simulation take[value_shape/shuffled/struct8/nonnull/chunks=16/indices=100] 3.3 ms 2.8 ms +15.38%
⚡ Simulation take_chunked_fsl_sorted[8, 64] 265 µs 233.2 µs +13.67%
⚡ Simulation take_chunked_fsl_sorted[32, 64] 279 µs 245.8 µs +13.54%
... ... ... ... ... ...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

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Comparing claude/chunked-canonical-via-builder-9ze0t6 (e0929fb) with develop (900c1f2)

Open in CodSpeed

Footnotes

  1. 503 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. ↩