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Align data buffers in fastlanes benchmarks#8393

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joseph-isaacs merged 1 commit into
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adamg/align-buffers-benchmarks
Jun 15, 2026
Merged

Align data buffers in fastlanes benchmarks#8393
joseph-isaacs merged 1 commit into
developfrom
adamg/align-buffers-benchmarks

Align data buffers in fastlanes benchmarks

3abc40b
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CodSpeed HQ / CodSpeed Performance Analysis failed Jun 12, 2026 in 0s

Performance Regression: -12.75%

⚠️ 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

⚡ 2 improved benchmarks
❌ 11 regressed benchmarks
✅ 1515 untouched benchmarks
⏩ 10 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
Simulation baseline_lt[16, 65536] 219.3 µs 304.8 µs -28.04%
Simulation baseline_eq[4, 65536] 186.9 µs 244.4 µs -23.53%
Simulation baseline_lt[4, 65536] 202.6 µs 259.6 µs -21.97%
Simulation baseline_eq[16, 65536] 231.8 µs 289.4 µs -19.89%
Simulation fast_lt_out_of_range[16, 65536] 120.5 µs 148.4 µs -18.8%
Simulation compare[12] 115.9 µs 136.5 µs -15.15%
Simulation varbinview_large 112.9 µs 131.5 µs -14.14%
Simulation decompress_rd[f64, (100000, 0.01)] 845.9 µs 981.5 µs -13.82%
Simulation decompress_rd[f64, (100000, 0.1)] 845.9 µs 981.5 µs -13.82%
Simulation compare[8] 105 µs 118.3 µs -11.25%
Simulation compare[10] 135.9 µs 152.9 µs -11.1%
Simulation decompress_rd[f64, (100000, 0.0)] 1,024.6 µs 845.8 µs +21.14%
Simulation decompress_rd[f32, (100000, 0.0)] 586.8 µs 499.3 µs +17.53%

Tip

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


Comparing adamg/align-buffers-benchmarks (3abc40b) with develop (37ae2d7)

Open in CodSpeed

Footnotes

  1. 10 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.