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[DO NOT MERGE] Experimental RowFn - #9255

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[DO NOT MERGE] Experimental RowFn#9255
connortsui20 wants to merge 12 commits into
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ct/row-fn

Record completed RowFn Copy ablation

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CodSpeed HQ / CodSpeed Performance Analysis failed Aug 8, 2026 in 0s

27 benchmarks regressed

⚡ 15 improved benchmarks
❌ 27 regressed benchmarks
✅ 1902 untouched benchmarks
🆕 63 new benchmarks
⏩ 85 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
❌ Simulation compact_sliced[(16384, 10)] 1.4 ms 1.9 ms -26.5%
❌ Simulation multipolygon_random_nulls 945.3 µs 1,270.9 µs -25.62%
❌ Simulation compact_sliced[(4096, 10)] 385.9 µs 513.7 µs -24.87%
❌ Simulation multipolygon_non_nullable 1.2 ms 1.6 ms -23.25%
❌ Simulation multipolygon_mixed_validity 1.2 ms 1.6 ms -23.12%
❌ Simulation take_filter_list_small_uncached_random_mask_random_indices[256, 10] 234.9 µs 278.4 µs -15.6%
❌ Simulation nullable_polygons_90pct_x_constant_point 587 µs 694.3 µs -15.46%
❌ Simulation take_filter_list_random_mask_sequential_indices[256, 50] 241.5 µs 284.3 µs -15.03%
❌ Simulation take_filter_list_random_mask_sequential_indices[768, 50] 236.8 µs 278.4 µs -14.92%
❌ Simulation take_filter_list_small_random_mask_random_indices[256, 10] 234.3 µs 274.7 µs -14.71%
❌ Simulation nullable[256] 230.4 µs 269.9 µs -14.63%
❌ Simulation take_filter_list_slice_mask_sequential_indices[256, 50] 236.6 µs 276.8 µs -14.51%
❌ Simulation take_filter_list_small_random_mask_random_indices[768, 10] 243.6 µs 285 µs -14.51%
❌ Simulation take_filter_list_slice_mask_sequential_indices[768, 50] 236.3 µs 276.2 µs -14.47%
❌ Simulation take_filter_list_slice_mask_random_indices[256, 50] 239.7 µs 279.9 µs -14.34%
❌ Simulation take_filter_list_random_mask_random_indices[256, 50] 246.9 µs 288.1 µs -14.31%
❌ Simulation nullable_polygons_x_nullable_points 703.8 µs 819.8 µs -14.15%
❌ Simulation take_filter_list_slice_mask_random_indices[768, 50] 241.6 µs 281.2 µs -14.08%
❌ Simulation take_filter_list_random_mask_random_indices[768, 50] 257.2 µs 298.1 µs -13.72%
❌ Simulation take_filter_list_small_uncached_random_mask_random_indices[768, 10] 243.2 µs 281.8 µs -13.71%
... ... ... ... ... ...

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

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 (53fff33) with develop (5794e7d)

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Footnotes

  1. 85 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. ↩

View more details on CodSpeed HQ