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Plan and execute common RowFn batches in one dispatch - #10675

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Plan and execute common RowFn batches in one dispatch

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CodSpeed / CodSpeed Performance Analysis failed Oct 22, 2026 in 0s

8 benchmarks regressed

3 warnings, 1 note

⚠️ Walltime results may be unreliable

Some benchmarks used the Walltime instrument outside CodSpeed Macro Runners, which can make the results inconsistent.

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⚠️ 17 benchmarks are dominated by system calls

System calls cannot be simulated consistently and are left out of the measure. The reported value understates the real cost. Switch to the Walltime instrument to measure them.

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⚠️ Base and head ran on different runner types

Some benchmarks with significant performance changes were compared across different runner types, so the changes might not come from the code. Run base and head on the same runner type, or use CodSpeed Macro Runners for more stable results.

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ℹ️ 40 benchmarks have no flamegraph

The flamegraph wasn't generated: the symbols of the profiling trace could not be resolved, because no information about the language frames was collected.

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⚡ 24 improved benchmarks
❌ 8 regressed benchmarks
✅ 2376 untouched benchmarks
⏩ 12 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
❌ CPU Simulation bench_compare_sliced_dict_primitive[(2000, 10000)] 13 µs 66.4 µs -80.43%
❌ Walltime mul_u64_nonnull_neon 20.8 µs 38.9 µs -46.41%
❌ Walltime deferred_bool_avx512[16384, (ConstantLhs, PartialAccepted)] 35.9 µs 47 µs -23.69%
❌ CPU Simulation density_sweep_dense_runs[0.001] 44.5 µs 53.8 µs -17.2%
❌ Walltime bitpack_blocked_compress_avx512 4.9 µs 5.6 µs -12.43%
❌ CPU Simulation random_i8[0.01] 103.5 µs 116.5 µs -11.13%
❌ CPU Simulation sum_i32_clustered_nulls 101 µs 112.8 µs -10.45%
❌ CPU Simulation canonical_sum_i32_clustered_nulls 102 µs 113.6 µs -10.2%
⚡ Walltime threshold_neon[8] 2.4 µs 1.4 µs +66.51%
⚡ Walltime threshold_neon[64] 4.3 µs 2.7 µs +62.95%
⚡ Walltime filter_neon[8] 1.7 µs 1.3 µs +33.54%
⚡ Walltime filter_neon[64] 2.7 µs 2.1 µs +27.1%
⚡ CPU Simulation random_i128[0.01] 5.3 µs 4.4 µs +22.73%
⚡ CPU Simulation filter_powerlaw_by_mostly_false[250000] 159.5 µs 136.9 µs +16.51%
⚡ CPU Simulation filter_random_by_mostly_false[250000] 184.5 µs 162.4 µs +13.57%
⚡ CPU Simulation test_scan_filter[int] 3.4 ms 3 ms +13.12%
⚡ Walltime bitpack_blocked_compress_avx2 7.6 µs 6.7 µs +13.09%
⚡ Walltime add_constant_shapes_neon[(32768, ConstantPerRow)] 16.1 µs 14.3 µs +12.77%
⚡ CPU Simulation filter_random_by_power_law[250000] 185.8 µs 165.5 µs +12.28%
⚡ CPU Simulation filter_powerlaw_by_power_law[250000] 185.9 µs 165.7 µs +12.19%
... ... ... ... ... ...

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

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Comparing ct/row-fn-cleanup/fused-execution (5cbf00a) with develop (dbaf5f8)

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Footnotes

  1. 12 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. ↩