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Compare primitive values with RowFn - #9979

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Compare primitive values with RowFn

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CodSpeed / CodSpeed Performance Analysis failed Sep 24, 2026 in 0s

Performance Regression: -7.34%

⚠️ 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.

⚠️ 3 benchmarks measured no execution time

Nothing ran under measurement, usually because the compiler removed the code under test. These results are not comparable, so they count as unchanged.

Preventing compiler optimizations

⚠️ 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

⚡ 10 improved benchmarks
❌ 36 regressed benchmarks
✅ 2130 untouched benchmarks
⏩ 385 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation take[duplicates/repeated/primitive/nonnull/chunks=16/indices=1000] 28.7 µs 112.4 µs -74.5%
WallTime lt_i64_nullable_avx512 2.8 µs 3.9 µs -27.84%
WallTime lt_i64_nullable_avx2 2.9 µs 3.9 µs -26.14%
WallTime compare_u8_avx512 1.7 µs 2.2 µs -22.68%
WallTime lt_i64_nullable_neon 3.6 µs 4.7 µs -21.87%
WallTime compare_int_nullable_avx512 3.7 µs 4.6 µs -20.44%
WallTime compare_int_nullable_neon 5.2 µs 6.5 µs -20.34%
WallTime compare_u8_avx2 1.7 µs 2.2 µs -18.92%
WallTime compare_int_nullable_avx2 3.9 µs 4.8 µs -18.3%
Simulation int_gt[16] 102.4 µs 123.3 µs -16.98%
Simulation or_chain[16] 344.5 µs 414.2 µs -16.82%
Simulation baseline_lt[4, 1024] 75.4 µs 90.2 µs -16.49%
Simulation or_chain[1024] 360.6 µs 427 µs -15.54%
Simulation float_gt[1024] 258.4 µs 305.8 µs -15.51%
Simulation float_gt[16] 235.6 µs 277.3 µs -15.04%
WallTime compare_u8_neon 2.2 µs 2.5 µs -15.01%
Simulation int_gt[1024] 108.3 µs 127.2 µs -14.82%
Simulation baseline_eq[4, 1024] 75.1 µs 88 µs -14.72%
Simulation baseline_lt[16, 1024] 77 µs 90 µs -14.52%
Simulation baseline_eq[16, 1024] 76.3 µs 89.3 µs -14.51%
... ... ... ... ... ...

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-compare-primitive (8eb8c0c) with develop (2ab66d7)2

Open in CodSpeed

Footnotes

  1. 385 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 ct/row-fn-output-allocator (e1ca00c) during the generation of this report, so develop (2ab66d7) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.